HICKORY: A Study of the Efficacy and Safety of Etrolizumab in Participants With Ulcerative Colitis Who Have Been Previously Exposed to Tumor Necrosis Factor (TNF) Inhibitors

Sponsor
Hoffmann-La Roche (Industry)
Overall Status
Completed
CT.gov ID
NCT02100696
Collaborator
(none)
609
184
6
70.9
3.3
0

Study Details

Study Description

Brief Summary

This Phase III, double-blind, placebo-controlled, multicenter study will investigate the efficacy and safety of etrolizumab during induction and maintenance of remission compared with placebo in the treatment of participants with moderately to severely active ulcerative colitis (UC) who have been previously exposed to TNF inhibitors.

Condition or Disease Intervention/Treatment Phase
Phase 3

Study Design

Study Type:
Interventional
Actual Enrollment :
609 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
Double (Participant, Investigator)
Primary Purpose:
Treatment
Official Title:
Phase III, Double-Blind, Placebo-Controlled, Multicenter Study of the Efficacy and Safety of Etrolizumab During Induction and Maintenance in Patients With Moderate to Severe Active Ulcerative Colitis Who Have Been Previously Exposed to TNF Inhibitors
Actual Study Start Date :
May 21, 2014
Actual Primary Completion Date :
Apr 16, 2020
Actual Study Completion Date :
Apr 16, 2020

Arms and Interventions

Arm Intervention/Treatment
Experimental: Cohort 1: Etrolizumab (Open-Label Induction (OLI) Phase)

Participants assigned to this arm will receive treatment with open-label etrolizumab 105 milligrams (mg) subcutaneous (SC) injection once every 4 weeks (Q4W) for 14 weeks during the induction phase.

Drug: Etrozulimab
Participants will receive 105 mg etrolizumab administered by SC injection Q4W.
Other Names:
  • PRO145223
  • RO5490261
  • RG7413
  • Placebo Comparator: Cohort 2: Placebo (Double-Blind Induction Phase)

    Participants randomized to this arm will receive treatment with double-blind placebo SC injection Q4W for 14 weeks during the induction phase.

    Drug: Placebo
    Participants will receive placebo (matched with etrolizumab) administered by SC injection Q4W.

    Experimental: Cohort 2: Etrolizumab (Double-Blind Induction Phase)

    Participants randomized to this arm will receive treatment with double-blind etrolizumab 105 mg SC injection Q4W for 14 weeks during the induction phase.

    Drug: Etrozulimab
    Participants will receive 105 mg etrolizumab administered by SC injection Q4W.
    Other Names:
  • PRO145223
  • RO5490261
  • RG7413
  • Placebo Comparator: Placebo Responders: Placebo (Maintenance Phase)

    Participants who received placebo during the induction phase, Cohort 2: Placebo (Double-Blind Induction Phase), and achieve a clinical response with placebo at Week 14 will continue to receive blinded placebo from Week 16 up to Week 66 during the maintenance phase.

    Drug: Placebo
    Participants will receive placebo (matched with etrolizumab) administered by SC injection Q4W.

    Placebo Comparator: Etrolizumab Responders: Placebo (Maintenance Phase)

    Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive placebo SC injection Q4W from Week 16 up to Week 66.

    Drug: Placebo
    Participants will receive placebo (matched with etrolizumab) administered by SC injection Q4W.

    Experimental: Etrolizumab Responders: Etrolizumab (Maintenance Phase)

    Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive etrolizumab 105 mg SC injection Q4W from Week 16 up to Week 66.

    Drug: Etrozulimab
    Participants will receive 105 mg etrolizumab administered by SC injection Q4W.
    Other Names:
  • PRO145223
  • RO5490261
  • RG7413
  • Outcome Measures

    Primary Outcome Measures

    1. Induction Phase: Percentage of Participants With Remission at Week 14, as Determined by the Mayo Clinic Score (MCS) [Week 14]

      The Mayo Clinic Score (MCS) ranges from 0 to 12 and is a composite of 4 assessments (each rated from 0-3): stool frequency, rectal bleeding, endoscopy, and physician's global assessment. Higher scores represent greater disease severity. Remission was defined as MCS less than or equal to (≤)2 with individual subscores ≤1 and a rectal bleeding subscore of 0.

    2. Maintenance Phase: Percentage of Participants With Remission at Week 66 Among Participants Who Had Achieved a Clinical Response at Week 14, as Determined by the MCS [Week 66]

      The MCS ranges from 0 to 12 and is a composite of 4 assessments (each rated from 0-3): stool frequency, rectal bleeding, endoscopy, and physician's global assessment. Higher scores represent greater disease severity. Remission was defined as MCS less than or equal to (≤)2 with individual subscores ≤1 and a rectal bleeding subscore of 0. Clinical Response is MCS with ≥3-point decrease and 30% reduction from baseline as well as ≥1-point decrease in rectal bleeding subscore or an absolute rectal bleeding score of 0 or 1.

    Secondary Outcome Measures

    1. Induction Phase: Percentage of Participants With Clinical Remission at Week 14, as Determined by the MCS [Week 14]

      The MCS ranges from 0 to 12 and is a composite of 4 assessments (each rated from 0-3): stool frequency, rectal bleeding, endoscopy, and physician's global assessment. Higher scores represent greater disease severity. Clinical Remission is MCS ≤2 with individual subscores ≤1.

    2. Induction Phase: Percentage of Participants With Clinical Response at Week 14, as Determined by the MCS [Week 14]

      The MCS ranges from 0 to 12 and is a composite of 4 assessments (each rated from 0-3): stool frequency, rectal bleeding, endoscopy, and physician's global assessment. Higher scores represent greater disease severity. Remission was defined as MCS less than or equal to (≤)2 with individual subscores ≤1 and a rectal bleeding subscore of 0. Clinical Response is MCS with ≥3-point decrease and 30% reduction from baseline as well as ≥1-point decrease in rectal bleeding subscore or an absolute rectal bleeding score of 0 or 1.

    3. Induction Phase: Percentage of Participants With Improvement From Baseline in Endoscopic Appearance of the Mucosa at Week 14, as Determined by the MCS Endoscopic Subscore [Baseline and Week 14]

      The MCS ranges from 0 to 12 and is a composite of 4 assessments (each rated from 0-3): stool frequency, rectal bleeding, endoscopy, and physician's global assessment. Higher scores represent greater disease severity. Improvement in endoscopic appearance of the mucosa is Endoscopy subscore ≤1.

    4. Induction Phase: Percentage of Participants With Endoscopic Remission at Week 14, as Determined by the MCS Endoscopic Subscore [Week 14]

      The MCS ranges from 0 to 12 and is a composite of 4 assessments (each rated from 0-3): stool frequency, rectal bleeding, endoscopy, and physician's global assessment. Higher scores represent greater disease severity. Endoscopic Remission is Endoscopy subscore = 0.

    5. Induction Phase: Percentage of Participants With Histologic Remission at Week 14, as Determined by the Nancy Histological Index [Week 14]

      Nancy Histological Index (NHI) is a 5-level classification ranging from grade 0 (No histologically significant disease) to grade 4 (severely active disease). Histologic remission is defined as a Nancy Histological Index of 0 or 1.

    6. Induction Phase: Change From Baseline to Week 6 in MCS Rectal Bleed Subscore [Baseline and Week 6]

      Rectal bleeding data were collected via the participant's diaries and each day a participant provided a score from 0 to 3 according to the following definitions: 0 = no blood in the stool; 1 = streaks of blood with stool less than half the time; 2 = obvious blood with stool most of the time; 3 = blood alone passed. The Mayo Clinic Score (MCS) rectal bleeding subscore was calculated as the worst value of three days of daily diary scores closest to anchor dates at baseline and post-baseline. The data was considered non-parametric and was reported using RANK analysis of covariance (ANCOVA). Participants were stratified by concomitant treatment with corticosteroids or immunosuppressants at randomization and disease activity measured during screening (MCS ≤9/MCS ≥10); the model adjusted for these stratification factors along with the baseline rectal bleeding (RB) subscore.

    7. Induction Phase: Change From Baseline to Week 6 in MCS Stool Frequency Subscore [Baseline and Week 6]

      Stool frequency data were collected via the participant's diaries and each day a participant provided a score from 0 to 3 according to the following definitions: 0 = normal number of stools; 1 = 1 to 2 more stools than normal; 2 = 3 to 4 more stools than normal; 3 = 5 or more stools than normal. The Mayo Clinic Score (MCS) stool frequency subscore was calculated as the average of three days daily diary scores closest to anchor dates at baseline and post-baseline. The data was considered non-parametric and was reported using RANK analysis of covariance (ANCOVA). Participants were stratified by concomitant treatment with corticosteroids or immunosuppressants at randomization and disease activity measured during screening (MCS ≤9/MCS ≥10); the model adjusted for these stratification factors along with the baseline stool frequency (SF) subscore.

    8. Induction Phase: Change From Baseline to Week 14 in UC Bowel Movement Signs and Symptoms, as Assessed by the Ulcerative Colitis Patient-Reported Outcome Signs and Symptoms (UC-PRO/SS) Questionnaire [Baseline and Week 14]

      The UC-PRO questionnaire is collected in the e-diary and completed by participants for at least 9-12 consecutive days prior to a study visit. The UC-PRO is being reported in three domains; two domains are key endpoints and reported as UC-PRO Signs and Symptoms (UC-PRO/SS). The bowel domain score ranges from 0-27, with a higher score indicating a worse disease state.

    9. Induction Phase: Change From Baseline to Week 14 in UC Functional Symptoms, as Assessed by the UC-PRO/SS Questionnaire [Baseline and Week 14]

      The UC-PRO questionnaire is collected in the e-diary and completed by participants for at least 9-12 consecutive days prior to a study visit. The UC-PRO is being reported in three domains; two domains are key endpoints and reported as UC-PRO Signs and Symptoms (UC-PRO/SS). The functional (abdominal symptoms) domain score ranges from 0-12, with a higher score indicating a worse disease state.

    10. Induction Phase: Change From Baseline to Week 14 in Health-Related Quality of Life, as Assessed by the Overall Score of the Inflammatory Bowel Disease Questionnaire (IBDQ) [Baseline and Week 14]

      The IBDQ score is a Total Score summed up from across all 32 questions on the questionnaire. The Total Score range is from 32 to 224 with higher scores representing a better quality of life.

    11. Maintenance Phase: Percentage of Participants With Clinical Remission at Week 66 Among Participants Who Had Achieved Clinical Remission at Week 14, as Determined by the MCS [Week 66]

      The MCS ranges from 0 to 12 and is a composite of 4 assessments (each rated from 0-3): stool frequency, rectal bleeding, endoscopy, and physician's global assessment. Higher scores represent greater disease severity. Remission was defined as MCS less than or equal to (≤)2 with individual subscores ≤1 and a rectal bleeding subscore of 0. Clinical Remission is MCS ≤2 with individual subscores ≤1.

    12. Maintenance Phase: Percentage of Participants With Clinical Remission at Week 66, as Determined by the MCS [Week 66]

      The MCS ranges from 0 to 12 and is a composite of 4 assessments (each rated from 0-3): stool frequency, rectal bleeding, endoscopy, and physician's global assessment. Higher scores represent greater disease severity. Remission was defined as MCS less than or equal to (≤)2 with individual subscores ≤1 and a rectal bleeding subscore of 0. Clinical Remission is MCS ≤2 with individual subscores ≤1.

    13. Maintenance Phase: Percentage of Participants With Remission at Week 66 Among Participants Who Had Achieved Remission at Week 14, as Determined by the MCS [Week 66]

      The MCS ranges from 0 to 12 and is a composite of 4 assessments (each rated from 0-3): stool frequency, rectal bleeding, endoscopy, and physician's global assessment. Higher scores represent greater disease severity. Remission was defined as MCS less than or equal to (≤)2 with individual subscores ≤1 and a rectal bleeding subscore of 0.

    14. Maintenance Phase: Percentage of Participants With Improvement From Baseline in Endoscopic Appearance of the Mucosa at Week 66, as Determined by the MCS Endoscopic Subscore [Baseline and Week 66]

      The MCS ranges from 0 to 12 and is a composite of 4 assessments (each rated from 0-3): stool frequency, rectal bleeding, endoscopy, and physician's global assessment. Higher scores represent greater disease severity. Improvement in endoscopic appearance of the mucosa is Endoscopy subscore ≤1.

    15. Maintenance Phase: Percentage of Participants With Histologic Remission at Week 66, as Determined by the Nancy Histological Index [Week 66]

      Nancy Histological Index (NHI) is a 5-level classification ranging from grade 0 (No histologically significant disease) to grade 4 (severely active disease). Histologic remission is defined as a Nancy Histological Index of 0 or 1.

    16. Maintenance Phase: Percentage of Participants With Endoscopic Remission at Week 66, as Determined by the MCS Endoscopic Subscore [Week 66]

      The MCS ranges from 0 to 12 and is a composite of 4 assessments (each rated from 0-3): stool frequency, rectal bleeding, endoscopy, and physician's global assessment. Higher scores represent greater disease severity. Endoscopic Remission is Endoscopy subscore = 0.

    17. Maintenance Phase: Percentage of Participants With Corticosteroid-Free Clinical Remission at Week 66 Among Participants Who Were Receiving Corticosteroids at Baseline, as Determined by the MCS [Week 66]

      The MCS ranges from 0 to 12 and is a composite of 4 assessments (each rated from 0-3): stool frequency, rectal bleeding, endoscopy, and physician's global assessment. Higher scores represent greater disease severity. Corticosteroid-Free analysis was conducted only on a subgroup of participants who were randomized into the maintenance phase and receiving Corticosteroids (CS) at baseline. Participants were defined as being off CS if they had no record of taking CS on the date that was 24 weeks prior to Week 66.

    18. Maintenance Phase: Percentage of Participants With Corticosteroid-Free Remission at Week 66 Among Participants Who Were Receiving Corticosteroids at Baseline, as Determined by the MCS [Week 66]

      The MCS ranges from 0 to 12 and is a composite of 4 assessments (each rated from 0-3): stool frequency, rectal bleeding, endoscopy, and physician's global assessment. Higher scores represent greater disease severity. Corticosteroid-Free analysis was conducted only on a subgroup of participants who were randomized into the maintenance phase and receiving Corticosteroids (CS) at baseline. Participants were defined as being off CS if they had no record of taking CS on the date that was 24 weeks prior to Week 66.

    19. Maintenance Phase: Change From Baseline to Week 66 in UC Bowel Movement Signs and Symptoms, as Assessed by the UC-PRO/SS Questionnaire [Baseline and Week 66]

      The UC-PRO questionnaire is collected in the e-diary and completed by participants for at least 9-12 consecutive days prior to a study visit. The UC-PRO is being reported in three domains; two domains are key endpoints and reported as UC-PRO Signs and Symptoms (UC-PRO/SS). The bowel domain score ranges from 0-27, with a higher score indicating a worse disease state.

    20. Maintenance Phase: Change From Baseline to Week 66 in UC Functional Symptoms, as Assessed by the UC-PRO/SS Questionnaire [Baseline and Week 66]

      The UC-PRO questionnaire is collected in the e-diary and completed by participants for at least 9-12 consecutive days prior to a study visit. The UC-PRO is being reported in three domains; two domains are key endpoints and reported as UC-PRO Signs and Symptoms (UC-PRO/SS). The functional (abdominal symptoms) domain score ranges from 0-12, with a higher score indicating a worse disease state.

    21. Maintenance Phase: Change From Baseline to Week 66 in Health-Related Quality of Life, as Assessed by the Overall Score of the IBDQ [Baseline and Week 66]

      The IBDQ is used to assess participant's health-related quality of life (QOL). The IBDQ score is a Total Score summed up from across all 32 questions on the questionnaire. The Total Score range is from 32 to 224 with higher scores representing a better quality of life.

    22. Number of Participants With at Least One Adverse Event by Severity, According to National Cancer Institute Common Terminology Criteria for Adverse Events, Version 4.0 (NCI-CTCAE v4.0) [From Baseline up to Week 78]

      All Adverse Events (AEs) were graded for severity using the NCI-CTCAE v4.0. Any AE not specifically listed was assessed per the following 5 grades: Grade 1 = mild; asymptomatic or mild symptoms; clinical or diagnostic observations only; or intervention not indicated. Grade 2 = moderate; minimal, local, or non-invasive intervention indicated; or limiting age-appropriate instrumental activities of daily living. Grade 3 = severe or medically significant, but not immediately life-threatening; hospitalization or prolongation of hospitalization indicated; disabling; or limiting self-care activities of daily living. Grade 4 = life-threatening consequences or urgent intervention indicated. Grade 5 = death related to AE. Not all grades are appropriate for all AEs; some AEs have fewer than 5 options. The terms "severe" and "serious" are not synonymous and are independently assessed for each AE. Multiple occurrences of AEs were counted only once per participant at the highest (worst) grade.

    23. Number of Participants With Adverse Events Leading to Study Drug Discontinuation [From Baseline up to Week 78]

    24. Number of Participants With Serious Infection-Related Adverse Events [From Baseline up to Week 78]

    25. Number of Participants With Infection-Related Adverse Events [From Baseline up to Week 78]

      All Adverse Events (AEs) were graded for severity using the NCI-CTCAE v4.0. Any AE not specifically listed was assessed per the following 5 grades: Grade 1 = mild; asymptomatic or mild symptoms; clinical or diagnostic observations only; or intervention not indicated. Grade 2 = moderate; minimal, local, or non-invasive intervention indicated; or limiting age-appropriate instrumental activities of daily living. Grade 3 = severe or medically significant, but not immediately life-threatening; hospitalization or prolongation of hospitalization indicated; disabling; or limiting self-care activities of daily living. Grade 4 = life-threatening consequences or urgent intervention indicated. Not all grades are appropriate for all AEs; some AEs have fewer than 5 options. The terms "severe" and "serious" are not synonymous and are independently assessed for each AE. Multiple occurrences of AEs were counted only once per participant at the highest (worst) grade.

    26. Number of Participants With Injection-Site Reaction-Related Adverse Events [From Baseline up to Week 78]

    27. Number of Participants With Hypersensitivity Reaction-Related Adverse Events [From Baseline up to Week 78]

    28. Number of Participants With Malignancies [From Baseline up to Week 78]

    29. Number of Participants With Anti-Therapeutic Antibodies to Etrolizumab at Baseline and During the Study [Pre-dose at Baseline, Weeks 4, 14, 24, 44, and 66, and Early Termination/End of Safety Follow-Up (up to Week 78)]

      A tiered strategy was used to detect and characterize etrolizumab antibodies within this clinical study. When determining post baseline incidence, participants were considered to be ADA positive if they were ADA negative or had missing data at baseline but developed an ADA response following etrolizumab drug exposure (treatment-induced ADA response), or if they were ADA positive at baseline and the titer of one or more post baseline samples was at least 0.60 titer unit greater than the titer of the baseline sample (treatment-enhanced ADA response). Participants were considered to be ADA negative if they were ADA negative or had missing data at baseline and all post baseline samples were negative, or if they were ADA positive at baseline but did not have any post baseline samples with a titer that was at least 0.60 titer unit greater than the titer of the baseline sample (treatment unaffected).

    30. Etrolizumab Serum Trough Concentration (for Arms/Timepoints Above LLOQ) [Pre-dose (0 hour) at Baseline and Weeks 14, 24, 44 and 66]

      As per Protocol, the timepoints for each arm where more than a third of the samples were above the lower limit of quantification (LLOQ), full summary statistics (Mean and Standard Deviation) were reported. For timepoints below the LLOQ, only the Median and Max were reported as a separate outcome measure below.

    31. Etrolizumab Serum Trough Concentration (for Arms/Timepoints Below LLOQ) [Weeks 44 and 66]

      As per Protocol, the timepoints for each arm where more than a third of the samples were below the LLOQ only the Median and Max were reported.

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    18 Years to 80 Years
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    No
    Inclusion Criteria:
    • Diagnosis of UC established at least 3 months prior to Day 1

    • Moderately to severely active UC as determined by the Mayo Clinic Score (MCS) assessment

    • Treatment within 5 years prior to screening with one or two induction regimens that contain TNF inhibitors (including TNF inhibitor biosimilars)

    • Washout of anti-TNF therapy for at least 8 weeks preceding Day 1

    • Background regimen for UC may include oral 5-aminosalicylic acid (5-ASA), oral corticosteroids, budesonide, probiotics, azathioprine (AZA), 6-mercaptopurine (6-MP), or methotrexate (MTX) if doses have been stable during the screening period

    • Use of highly effective contraception as defined by the protocol

    • Must have received a colonoscopy within the past year or be willing to undergo a colonoscopy in lieu of a flexible sigmoidoscopy at screening

    Exclusion Criteria:
    • A history of or current conditions and diseases affecting the digestive tract, such as indeterminate colitis, suspicion of ischemic colitis, radiation colitis, or microscopic colitis, Crohn's disease, fistulas or abdominal abscesses, colonic mucosal dysplasia, intestinal obstruction, toxic megacolon, or unremoved adenomatous colonic polyps

    • Prior or planned surgery for UC

    • Past or present ileostomy or colostomy

    • Any prior treatment with etrolizumab or other anti-integrin agents (including natalizumab, vedolizumab, and efalizumab)

    • Any prior treatment with anti-adhesion molecules (e.g. anti-MAdCAM-1)

    • Any prior treatment with rituximab

    • Any treatment with tofacitinib during screening

    • Congenital or acquired immune deficiency, chronic hepatitis B or C infection, human immunodeficiency virus (HIV) positive, or history of tuberculosis (active or latent)

    • Evidence of or treatment for Clostridium difficile or clinically significant cytomegalovirus (CMV) colitis within 60 days prior to Day 1

    • Evidence of or treatment for other intestinal pathogens within 30 days prior to Day 1

    • History of recurrent opportunistic infections and/or severe disseminated viral infections

    • History of organ transplant

    • Any major episode of infection requiring treatment with intravenous (IV) antibiotics within 8 weeks prior to screening or oral antibiotics within 4 weeks prior to screening

    • Received a live attenuated vaccine within 4 weeks prior to Day 1

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 University of Alabama at Birmingham Birmingham Alabama United States 35294
    2 University of California San Diego Medical Center La Jolla California United States 92093-5354
    3 Clinical Applications Laboratories, Inc. San Diego California United States 92103
    4 Precision Research Institute, LLC San Diego California United States 92114
    5 University of California at San Francisco San Francisco California United States 94115
    6 Rocky Mountain Gastroenterology Associates Denver Colorado United States 80222
    7 Rocky Mountain Gastroenterology Associates, P.L.L.C.; Gastroenterology Lakewood Colorado United States 80215
    8 FQL Research, LLC Miramar Florida United States 33025
    9 Center For Digestive Health Orlando Florida United States 32803
    10 Internal Medicine Specialists Orlando Florida United States 32806
    11 Shafran Gastroenterology Center Winter Park Florida United States 32789
    12 Gastroenterology Associates of Central Georgia Macon Georgia United States 31201
    13 Gastrointestinal Specialists of Georgia, PC Marietta Georgia United States 30060
    14 Atlanta Gastroenterology Specialists, PC Suwanee Georgia United States 30024
    15 Northwestern University Feinberg School Of Medicine Chicago Illinois United States 60611
    16 Southwest Gastroenterology Oak Lawn Illinois United States 60453
    17 Cotton-O'Neil Clinical Research Center, Digestive Health Topeka Kansas United States 66606
    18 Gastroenterology Associates, LLC Baton Rouge Louisiana United States 70809
    19 Louisiana Research Center, LLC Shreveport Louisiana United States
    20 Massachusetts General Hospital; Crohn's & Colitis Center Boston Massachusetts United States 02114
    21 University of Michigan; Michigan Institute for Clinical and Health Research (MICHR) Ann Arbor Michigan United States 48109
    22 Henry Ford Health System Detroit Michigan United States 48202
    23 Center for Digestive Health Troy Michigan United States 48098
    24 Kansas City Research Institute, LLC Kansas City Missouri United States 64131
    25 Clinica Peruano Americana S.A. Great Neck New York United States 11021
    26 Weill Cornell Medical College-New York Presbyterian Hospital New York New York United States 10021
    27 University of North Carolina at Chapel Hill Chapel Hill North Carolina United States 27599
    28 Consultants for Clinical Research Inc. Cincinnati Ohio United States 45219
    29 UC Health, LLC. Cincinnati Ohio United States 45219
    30 Great Lakes Gastroenterology Research, LLC Mentor Ohio United States 44060
    31 Gastroenterology Center of the Midsouth, P.C. Memphis Tennessee United States 38120
    32 Vanderbilt University Medical Center Nashville Tennessee United States 37232
    33 Tyler Research Institute, LLC Tyler Texas United States 75701
    34 Ericksen Research and Development Clinton Utah United States 84015
    35 University of Utah School of Medicine Salt Lake City Utah United States 84132
    36 Digestive and Liver Disease Specialists, Ltd. Norfolk Virginia United States 23502
    37 McGuire Research Institute; Gastroenterology Richmond Virginia United States 23249
    38 Washington Gastroenterology Bellevue Washington United States 98004
    39 Hospital Provincial del Centenario Rosario Argentina 2000
    40 Royal Brisbane and Women's Hospital Herston Queensland Australia 4029
    41 Mater Adult Hospital South Brisbane Queensland Australia 4101
    42 Princess Alexandra Hospital Woolloongabba Queensland Australia 4102
    43 Launceston General Hospital; Gastroenterology Research Launceston Tasmania Australia 7250
    44 St Vincent's Hospital Melbourne Fitzroy Victoria Australia 3065
    45 Footscray Hospital; Gastroenterology Footscray Victoria Australia 3011
    46 St Frances Xavier Cabrini Hospital Malvern Victoria Australia 3144
    47 Fiona Stanley Hospital Murdoch Western Australia Australia 6150
    48 Klinikum Klagenfurt am Wörtersee; Acute geriatric care Klagenfurt Austria 9020
    49 LKH - Universitätsklinikum der PMU Salzburg Salzburg Austria 5020
    50 Medizinische Universität Wien Wien Austria 1090
    51 Imeldaziekenhuis Bonheiden Belgium 2820
    52 CHU St Pierre (St Pierre) Brussels Belgium 1000
    53 UZ Brussel Brussel Belgium 1090
    54 UZ Gent Gent Belgium 9000
    55 AZ Sint Elisabeth Herentals Herentals Belgium 2200
    56 UZ Leuven; Neurology Leuven Belgium 3000
    57 CHU de Liège; Tour de Pathologie Liège Belgium 4000
    58 AZ Delta (Stedelijk Ziekenhuis) Roeselare Belgium 8800
    59 Instituto Goiano de Gastroenterologia e Endoscopia Digestiva Ltda Goiânia GO Brazil 74535-170
    60 Hospital Felicio Rocho Belo Horizonte MG Brazil 30110-068
    61 Centro Digestivo de Curitiba Curitiba PR Brazil 80430-160
    62 Hospital Universitario Clementino Fraga Filho - UFRJ Rio de Janeiro RJ Brazil 21941-913
    63 Hospital Moinhos de Vento Porto Alegre RS Brazil 90035-001
    64 Hospital de Clínicas de Porto Alegre X Porto Alegre RS Brazil
    65 UNESP - Faculdade de Medicina da Universidade Estadual Paulista - Campus Botucatu Botucatu SP Brazil 18618-970
    66 CAEP - Centro Avancado de Estudos e Pesquisas Ltda. Campinas SP Brazil 13087-567
    67 Hospital Estadual Mario Covas Santo Andre SP Brazil 09190-610
    68 University of Calgary; Heritage Medical Research Clinic Calgary Alberta Canada T2N 4Z6
    69 Zeidler Ledcor Centre - University of Alberta; Division of Gasroenterology Edmonton Alberta Canada T6G 2X8
    70 Pacific Gastroenterology Associates Vancouver British Columbia Canada V6Z 2K5
    71 Queen Elizabeth II Health Sciences Centre; Gastroenterology Research Halifax Nova Scotia Canada B3H 1V7
    72 Taunton Health Centre Oshawa Ontario Canada L1H 7K4
    73 Mount Sinai Hospital Toronto Ontario Canada M5G 1X5
    74 Toronto Liver Centre Toronto Ontario Canada M6H 3M1
    75 Toronto Digestive Disease Associates Vaughan Ontario Canada L4L 4Y7
    76 Hotel Dieu de Levis Levis Quebec Canada G6V 3Z1
    77 Hôpital Maisonneuve - Rosemont Montreal Quebec Canada H1T 2M4
    78 Fakultni nemocnice Brno; Interni kardiologicka klinika Brno Czechia 625 00
    79 Hepato-Gastroenterologie HK, s.r.o. Hradec Kralove Czechia 500 12
    80 Pardubicka krajska nemocnice, a.s. Pardubice Czechia 532 03
    81 Nemocnice Na Bulovce Prague Czechia 180 01
    82 ISCARE a.s. Praha 7 Czechia 170 04
    83 Krajska zdravotni, a.s. - Masarykova nemocnice v Usti nad Labem, o.z., Ocni oddeleni Usti Nad Labem Czechia 401 13
    84 Rigshospitalet; Medicinsk gastroenterologisk klinik København Ø Denmark 2100
    85 Ålborg Universitets Hospital; Gastromedicinsk Ålborg Denmark 9000
    86 CHU Amiens - Hopital Sud; Pharmacie - Secteur des Essais cliniques Amiens Cedex01 France 80054
    87 Hôpital Beaujon Clichy cedex France 92110
    88 Hopital Claude Huriez - CHU Lille Lille France 59037
    89 Hôpital Nord - CHU Marseille; Gastroenterology and Hepatology Marseille cedex 20 France 13915
    90 CHU Nice - Hopital de l'Archet 2 Nice France 06202
    91 Hôpital Saint-Louis Paris France 75475
    92 Groupe Hospitalier Sud - Hôpital Haut-Lévêque - USN Pessac France 33604
    93 CHU Saint Etienne - Hôpital Nord Saint Etienne France 42055
    94 Höpital Hautepierre; Pediatrie1 Strasbourg France 67098
    95 CHU de Toulouse - Hôpital Rangueil Toulouse Cedex 09 France 31059
    96 Hôpital de Brabois Adultes Vandoeuvre-les-nancy France 54511
    97 Charite Universitaetsmedizin Berlin - Campus Charite Mitte Berlin Germany 10117
    98 DRK Kliniken Berlin Westend Berlin Germany 14050
    99 Universitaetsklinikum Erlangen Erlangen Germany 91054
    100 Klinikum der Johann Wolfgang Goethe-Universitaet Frankfurt Germany 60590
    101 Universitätsklinikum Freiburg; Innere Medizin I; Hämatologie, Onkologie und Stammzelltransplantation Freiburg Germany 79106
    102 Universitaetsklinikum Halle (Saale) Halle Germany 06120
    103 Hamburgisches Forschungsinstitut fuer CED Hamburg Germany 20148
    104 Universitätsklinikum Hamburg-Eppendorf Hamburg Germany 20246
    105 Gastroenterologie Eppendorfer Baum Hamburg Germany 20249
    106 Medizinische Hochschule Hannover; Klinik für Gastroenterologie, Hepatologie und Endokrinologie Hannover Germany 30625
    107 Universitaetsklinikum Schleswig-Holstein, Campus Kiel Kiel Germany 24116
    108 Klinikum Mannheim GmbH Universitätsklinikum Mannheim Germany 68167
    109 Universitaetsklinikum Muenster Muenster Germany 48149
    110 Universitaetsklinikum Ulm Ulm Germany 89081
    111 Anticancer Hospital of Thessaliniki " Theagenio" Thessaloniki Greece 54007
    112 Bekes Megyei Kozponti Korhaz Dr. Rethy Pal Tagkorhaza Bekescsaba Hungary 5600
    113 Obudai Egeszsegugyi Centrum Kft. Budapest Hungary 1036
    114 Semmelweis Egyetem Budapest Hungary 1083
    115 Eszak-Kozep-budai Centrum, Uj Szent Janos Korhaz es Szakrendelo Budapest Hungary 1125
    116 Pannonia Maganorvosi Centrum Budapest Hungary 1135
    117 Magyar Honvedseg Egeszsegugyi Kozpont; Fázis I-es Klinikai Farmakológiai Vizsgálóhely Budapest Hungary H-1077
    118 Debreceni Egyetem Debrecen Hungary 4032
    119 Markhot Ferenc Oktato Korhaz es Rendelointezet Eger Hungary 3300
    120 Petz Aladar Megyei Oktato Korhaz Gyor Hungary 9024
    121 Borsod-Abauj-Zemplen Megyei Korhaz es Egyetemi Oktato Korhaz; II. Belgyogyaszat Miskolc Hungary 3526
    122 Pecsi Tudomanyegyetem Pecs Hungary 7624
    123 Fejer Megyei Szent Gyorgy Egyetemi Oktato Korhaz Székesfehérvár Hungary 8000
    124 Shaare Zedek Medical Center Jerusalem Israel 9103102
    125 Hadassah University Hospital - Ein Kerem; Neurosurgery Jerusalem Israel 9112001
    126 Rabin Medical Center-Beilinson Campus; Gaucher Clinic, Genetics Institute Petach Tiqwa Israel 49100
    127 Kaplan Medical Center Rehovot Israel 7610001
    128 Assaf Harofeh Rishon Lezion Israel 7505001
    129 Azienda Ospedaliera S. Orsola-Malpighi Bologna Emilia-Romagna Italy 40138
    130 A.O.U. Policlinico di Modena Modena Emilia-Romagna Italy 40124
    131 Azienda Ospedaliera Universitaria Policlinico Tor Vergata Roma Lazio Italy 00133
    132 Azienda Ospedaliera San Camillo Forlanini Roma Lazio Italy 00152
    133 Fondazione Policlinico Universitario Agostino Gemelli IRCCS Roma Lazio Italy 00168
    134 Azienda Socio Sanitaria Territoriale Fatebenefratelli (Presidio Ospedale Sacco) Milano Lombardia Italy
    135 Ospedale di Circolo; Neuropsichiatria Infantile Rho Lombardia Italy 20017
    136 Istituto Clinico Humanitas Rozzano (MI) Lombardia Italy 20089
    137 I.R.C.C.S Policlinico San Donato San Donato Milanese (MI) Lombardia Italy 20097
    138 Azienda Ospedaliera Universitaria Careggi Firenze Toscana Italy 50141
    139 Azienda Ospedaliera Di Padova Padova Veneto Italy 35128
    140 Kyungpook National University Hospital; Opthalmology Daegu Korea, Republic of 700-721
    141 Korea University Ansan Hospital Gyeonggi-do Korea, Republic of 15355
    142 Seoul National University Bundang Hospital Seongnam-si Korea, Republic of 13605
    143 Seoul National University Hospital Seoul Korea, Republic of 03080
    144 Severance Hospital, Yonsei University Seoul Korea, Republic of 03722
    145 Samsung Medical Center Seoul Korea, Republic of 06531
    146 Asan Medical Center. Seoul Korea, Republic of 138-736
    147 The Catholic University of Korea St. Vincent's Hospital Suwon-si, Korea, Republic of 442-723
    148 Hospital of Lithuanian University of Health. Sciences Kaunas Clinics Kaunas Lithuania 50009
    149 Vilnius University Hospital Santariskiu Clinic Public Insti Vilnius Lithuania 08661
    150 Centro Regiomontano de Estudios Clínicos Roma S.C. Monterrey Nuevo LEON Mexico 64610
    151 Amsterdam UMC, Locatie VUMC; Neurology Amsterdam Netherlands 1081 HV
    152 Amsterdam UMC Location AMC Amsterdam Netherlands 1105 AZ
    153 Rijnstate; Internal Medicine Department Arnhem Netherlands 6815 AD
    154 Radboudumc NL -nijmegen Netherlands 6525 GA
    155 Nasz Lekarz Osrodek Badan Klinicznych Bydgoszcz Poland 85-312
    156 Nzoz All-Medicus Katowice Poland 40-660
    157 Gabinet Lekarski, Bartosz Korczowski Rzeszów Poland 35-302
    158 Niepubliczny Zaklad Opieki Zdrowotnej SONOMED Szczecin Poland 70-351
    159 Centrum Zdrowia MDM Warszawa Poland 00-631
    160 Narodowy Instytut Onkologii im. Marii Skłodowskiej-Curie - Państwowy Instytut Badawczy Warszawa Poland 02-781
    161 Nzoz Vivamed Warszawa Poland 03-580
    162 LexMedica Osrodek Badan Klinicznych Wroclaw Poland 53-114
    163 EuroMediCare Szpital Specjalistyczny z Przychodnią we Wrocławiu Wroclaw Poland 54-144
    164 PlanetMed Wrocław Poland 52-210
    165 SC Euroclinic Hospital SA Bucuresti Romania 014461
    166 Fundacion Hospital de Alcorcon; Servicio de Digestivo Alcorcon Madrid Spain 28922
    167 Hospital Universitari de Girona Dr Josep Trueta Girona Spain 17007
    168 Hospital Universitario de la Princesa Madrid Spain 28006
    169 Hospital Universitario de Fuenlabrada Madrid Spain 28942
    170 Hospital Universitari i Politecnic La Fe Valencia Spain 46026
    171 Hospital Universitario Miguel Servet Zaragoza Spain 50009
    172 Inselspital-Universitaetsspital Bern; Institut fuer Spitalpharmazie Bern Switzerland 3010
    173 Cliniques Universitaires Saint-Luc; Nephrology Bern Switzerland 3012
    174 Crohn-Colitis Zentrum Bern - Gemeinschaftspraxis Balsiger, Seibold und Partner Bern Switzerland 3012
    175 Addenbrooke's Hospital Cambridge United Kingdom CB2 0QQ
    176 Royal Devon and Exeter Hospital (Wonford) Exeter United Kingdom EX2 5DW
    177 The Royal London Hospital London United Kingdom E1 2ES
    178 University College London Hospital London United Kingdom NW1 - 2PG
    179 St Thomas Hospital London United Kingdom SE1 7EH
    180 King's College London London United Kingdom SE5 9NU
    181 Fairfield General Hospital Manchester United Kingdom M8 5RB
    182 Royal Victoria Infirmary Newcastle upon Tyne United Kingdom NE1 4LP
    183 Nottingham University Hospitals; QMC Campus Nottingham United Kingdom NG7 2UH
    184 Southampton General Hospital Southampton United Kingdom SO16 6YD

    Sponsors and Collaborators

    • Hoffmann-La Roche

    Investigators

    • Study Director: Clinical Trials, Hoffmann-La Roche

    Study Documents (Full-Text)

    More Information

    Publications

    None provided.
    Responsible Party:
    Hoffmann-La Roche
    ClinicalTrials.gov Identifier:
    NCT02100696
    Other Study ID Numbers:
    • GA28950
    • 2013-004278-88
    First Posted:
    Apr 1, 2014
    Last Update Posted:
    Aug 13, 2021
    Last Verified:
    Jul 1, 2021
    Studies a U.S. FDA-regulated Drug Product:
    Yes
    Studies a U.S. FDA-regulated Device Product:
    No
    Additional relevant MeSH terms:

    Study Results

    Participant Flow

    Recruitment Details The study was conducted at 184 centers in 24 countries.
    Pre-assignment Detail A total of 609 participants were enrolled into the Induction phase of this study and the entire study. A subset (259) of these participants moved into the Maintenance phase of this study.
    Arm/Group Title Cohort 1: Etrolizumab (Open-Label Induction (OLI) Phase) Cohort 2: Placebo (Double-Blind Induction Phase) Cohort 2: Etrolizumab (Double-Blind Induction Phase) Placebo Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Etrolizumab (Maintenance Phase)
    Arm/Group Description Participants assigned to this arm will receive treatment with open-label etrolizumab 105 milligrams (mg) subcutaneous (SC) injection once every 4 weeks (Q4W) for 14 weeks during the induction phase. Participants randomized to this arm will receive treatment with double-blind placebo SC injection Q4W for 14 weeks during the induction phase. Participants randomized to this arm will receive treatment with double-blind etrolizumab 105 mg SC injection Q4W for 14 weeks during the induction phase. Participants who received placebo during the induction phase, Cohort 2: Placebo (Double-Blind Induction Phase), and achieve a clinical response with placebo at Week 14 will continue to receive blinded placebo from Week 16 up to Week 66 during the maintenance phase. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive placebo SC injection Q4W from Week 16 up to Week 66. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive etrolizumab 105 mg SC injection Q4W from Week 16 up to Week 66.
    Period Title: Induction Phase
    STARTED 130 95 384 0 0 0
    COMPLETED 115 90 358 0 0 0
    NOT COMPLETED 15 5 26 0 0 0
    Period Title: Induction Phase
    STARTED 0 0 0 27 115 117
    COMPLETED 0 0 0 26 106 112
    NOT COMPLETED 0 0 0 1 9 5

    Baseline Characteristics

    Arm/Group Title Cohort 1: Etrolizumab (Open-Label Induction (OLI) Phase) Cohort 2: Placebo (Double-Blind Induction Phase) Cohort 2: Etrolizumab (Double-Blind Induction Phase) Placebo Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Etrolizumab (Maintenance Phase) Total
    Arm/Group Description Participants assigned to this arm will receive treatment with open-label etrolizumab 105 milligrams (mg) subcutaneous (SC) injection once every 4 weeks (Q4W) for 14 weeks during the induction phase. Participants randomized to this arm will receive treatment with double-blind placebo SC injection Q4W for 14 weeks during the induction phase. Participants randomized to this arm will receive treatment with double-blind etrolizumab 105 mg SC injection Q4W for 14 weeks during the induction phase. Participants who received placebo during the induction phase, Cohort 2: Placebo (Double-Blind Induction Phase), and achieve a clinical response with placebo at Week 14 will continue to receive blinded placebo from Week 16 up to Week 66 during the maintenance phase. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive placebo SC injection Q4W from Week 16 up to Week 66. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive etrolizumab 105 mg SC injection Q4W from Week 16 up to Week 66. Total of all reporting groups
    Overall Participants 130 95 384 27 115 117 868
    Age (years) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [years]
    39.5
    (13.5)
    38.8
    (13.9)
    40.7
    (13.3)
    40.1
    (13.4)
    Age (years) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [years]
    43.1
    (13.8)
    42.0
    (13.5)
    40.0
    (12.9)
    41.2
    (13.2)
    Sex: Female, Male (Count of Participants)
    Female
    52
    40%
    41
    43.2%
    160
    41.7%
    253
    937%
    Male
    78
    60%
    54
    56.8%
    224
    58.3%
    356
    1318.5%
    Sex: Female, Male (Count of Participants)
    Female
    9
    6.9%
    43
    45.3%
    57
    14.8%
    109
    403.7%
    Male
    18
    13.8%
    72
    75.8%
    60
    15.6%
    150
    555.6%
    Race/Ethnicity, Customized (Number) [Number]
    Hispanic or Latino
    4
    3.1%
    5
    5.3%
    30
    7.8%
    39
    144.4%
    Not Hispanic or Latino
    118
    90.8%
    76
    80%
    321
    83.6%
    515
    1907.4%
    Not Reported or Unknown
    8
    6.2%
    14
    14.7%
    33
    8.6%
    55
    203.7%
    American Indian or Alaska Native
    0
    0%
    1
    1.1%
    0
    0%
    1
    3.7%
    Asian
    6
    4.6%
    5
    5.3%
    26
    6.8%
    37
    137%
    Black or African American
    3
    2.3%
    1
    1.1%
    6
    1.6%
    10
    37%
    White
    109
    83.8%
    73
    76.8%
    304
    79.2%
    486
    1800%
    Other
    12
    9.2%
    15
    15.8%
    48
    12.5%
    75
    277.8%
    Race/Ethnicity, Customized (Number) [Number]
    Hispanic or Latino
    1
    0.8%
    8
    8.4%
    9
    2.3%
    18
    66.7%
    Not Hispanic or Latino
    21
    16.2%
    95
    100%
    94
    24.5%
    210
    777.8%
    Not Reported or Unknown
    5
    3.8%
    12
    12.6%
    14
    3.6%
    31
    114.8%
    Asian
    2
    1.5%
    5
    5.3%
    5
    1.3%
    12
    44.4%
    Black or African American
    0
    0%
    1
    1.1%
    3
    0.8%
    4
    14.8%
    White
    20
    15.4%
    96
    101.1%
    92
    24%
    208
    770.4%
    Other
    5
    3.8%
    13
    13.7%
    17
    4.4%
    35
    129.6%

    Outcome Measures

    1. Primary Outcome
    Title Induction Phase: Percentage of Participants With Remission at Week 14, as Determined by the Mayo Clinic Score (MCS)
    Description The Mayo Clinic Score (MCS) ranges from 0 to 12 and is a composite of 4 assessments (each rated from 0-3): stool frequency, rectal bleeding, endoscopy, and physician's global assessment. Higher scores represent greater disease severity. Remission was defined as MCS less than or equal to (≤)2 with individual subscores ≤1 and a rectal bleeding subscore of 0.
    Time Frame Week 14

    Outcome Measure Data

    Analysis Population Description
    The Modified Intent-to-Treat (mITT) population was defined as all participants randomised in Cohort 2 who received at least one dose of study drug, with participants grouped according to the treatment assigned at randomisation.
    Arm/Group Title Cohort 2: Placebo (Double-Blind Induction Phase) Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Arm/Group Description Participants randomized to this arm will receive treatment with double-blind placebo SC injection Q4W for 14 weeks during the induction phase. Participants randomized to this arm will receive treatment with double-blind etrolizumab 105 mg SC injection Q4W for 14 weeks during the induction phase.
    Measure Participants 95 384
    Number [Percentage of Participants]
    6.3
    4.8%
    18.5
    19.5%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Cohort 2: Placebo (Double-Blind Induction Phase), Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.0033
    Comments
    Method Cochran-Mantel-Haenszel
    Comments
    Method of Estimation Estimation Parameter Adjusted difference in response rates
    Estimated Value 12.2
    Confidence Interval (2-Sided) 95%
    3.95 to 17.67
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    2. Primary Outcome
    Title Maintenance Phase: Percentage of Participants With Remission at Week 66 Among Participants Who Had Achieved a Clinical Response at Week 14, as Determined by the MCS
    Description The MCS ranges from 0 to 12 and is a composite of 4 assessments (each rated from 0-3): stool frequency, rectal bleeding, endoscopy, and physician's global assessment. Higher scores represent greater disease severity. Remission was defined as MCS less than or equal to (≤)2 with individual subscores ≤1 and a rectal bleeding subscore of 0. Clinical Response is MCS with ≥3-point decrease and 30% reduction from baseline as well as ≥1-point decrease in rectal bleeding subscore or an absolute rectal bleeding score of 0 or 1.
    Time Frame Week 66

    Outcome Measure Data

    Analysis Population Description
    The Modified Intent-to-Treat (mITT) population was defined as all participants randomised in the maintenance phase who received at least one dose of study drug, with participants grouped according to the treatment assigned at randomisation.
    Arm/Group Title Etrolizumab Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Etrolizumab (Maintenance Phase)
    Arm/Group Description Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive placebo SC injection Q4W from Week 16 up to Week 66. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive etrolizumab 105 mg SC injection Q4W from Week 16 up to Week 66.
    Measure Participants 114 112
    Number [Percentage of Participants]
    20.2
    15.5%
    24.1
    25.4%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Cohort 2: Placebo (Double-Blind Induction Phase), Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.4956
    Comments
    Method Cochran-Mantel-Haenszel
    Comments
    Method of Estimation Estimation Parameter Treatment Difference
    Estimated Value 3.8
    Confidence Interval (2-Sided) 95%
    -7.13 to 14.56
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    3. Secondary Outcome
    Title Induction Phase: Percentage of Participants With Clinical Remission at Week 14, as Determined by the MCS
    Description The MCS ranges from 0 to 12 and is a composite of 4 assessments (each rated from 0-3): stool frequency, rectal bleeding, endoscopy, and physician's global assessment. Higher scores represent greater disease severity. Clinical Remission is MCS ≤2 with individual subscores ≤1.
    Time Frame Week 14

    Outcome Measure Data

    Analysis Population Description
    The Modified Intent-to-Treat (mITT) population was defined as all participants randomised in Cohort 2 who received at least one dose of study drug, with participants grouped according to the treatment assigned at randomisation.
    Arm/Group Title Cohort 2: Placebo (Double-Blind Induction Phase) Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Arm/Group Description Participants randomized to this arm will receive treatment with double-blind placebo SC injection Q4W for 14 weeks during the induction phase. Participants randomized to this arm will receive treatment with double-blind etrolizumab 105 mg SC injection Q4W for 14 weeks during the induction phase.
    Measure Participants 95 384
    Number [Percentage of Participants]
    6.3
    4.8%
    18.8
    19.8%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Cohort 2: Placebo (Double-Blind Induction Phase), Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.0028
    Comments Nominal P-value reported (not adjusted for multiplicity)
    Method Cochran-Mantel-Haenszel
    Comments
    Method of Estimation Estimation Parameter Adjusted Difference in Remission Rates
    Estimated Value 12.5
    Confidence Interval (2-Sided) 95%
    4.19 to 17.94
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    4. Secondary Outcome
    Title Induction Phase: Percentage of Participants With Clinical Response at Week 14, as Determined by the MCS
    Description The MCS ranges from 0 to 12 and is a composite of 4 assessments (each rated from 0-3): stool frequency, rectal bleeding, endoscopy, and physician's global assessment. Higher scores represent greater disease severity. Remission was defined as MCS less than or equal to (≤)2 with individual subscores ≤1 and a rectal bleeding subscore of 0. Clinical Response is MCS with ≥3-point decrease and 30% reduction from baseline as well as ≥1-point decrease in rectal bleeding subscore or an absolute rectal bleeding score of 0 or 1.
    Time Frame Week 14

    Outcome Measure Data

    Analysis Population Description
    The Modified Intent-to-Treat (mITT) population was defined as all participants randomised in Cohort 2 who received at least one dose of study drug, with participants grouped according to the treatment assigned at randomisation.
    Arm/Group Title Cohort 2: Placebo (Double-Blind Induction Phase) Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Arm/Group Description Participants randomized to this arm will receive treatment with double-blind placebo SC injection Q4W for 14 weeks during the induction phase. Participants randomized to this arm will receive treatment with double-blind etrolizumab 105 mg SC injection Q4W for 14 weeks during the induction phase.
    Measure Participants 95 384
    Number [Percentage of Participants]
    31.6
    24.3%
    45.8
    48.2%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Cohort 2: Placebo (Double-Blind Induction Phase), Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.0241
    Comments Multiplicity P-value reported (adjusted for multiplicity)
    Method Cochran-Mantel-Haenszel
    Comments
    Method of Estimation Estimation Parameter Adjusted Difference in Response Rates
    Estimated Value 14.3
    Confidence Interval (2-Sided) 95%
    3.21 to 24.14
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    5. Secondary Outcome
    Title Induction Phase: Percentage of Participants With Improvement From Baseline in Endoscopic Appearance of the Mucosa at Week 14, as Determined by the MCS Endoscopic Subscore
    Description The MCS ranges from 0 to 12 and is a composite of 4 assessments (each rated from 0-3): stool frequency, rectal bleeding, endoscopy, and physician's global assessment. Higher scores represent greater disease severity. Improvement in endoscopic appearance of the mucosa is Endoscopy subscore ≤1.
    Time Frame Baseline and Week 14

    Outcome Measure Data

    Analysis Population Description
    The Modified Intent-to-Treat (mITT) population was defined as all participants randomised in Cohort 2 who received at least one dose of study drug, with participants grouped according to the treatment assigned at randomisation.
    Arm/Group Title Cohort 2: Placebo (Double-Blind Induction Phase) Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Arm/Group Description Participants randomized to this arm will receive treatment with double-blind placebo SC injection Q4W for 14 weeks during the induction phase. Participants randomized to this arm will receive treatment with double-blind etrolizumab 105 mg SC injection Q4W for 14 weeks during the induction phase.
    Measure Participants 95 384
    Number [Percentage of Participants]
    25.3
    19.5%
    33.3
    35.1%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Cohort 2: Placebo (Double-Blind Induction Phase), Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.1605
    Comments Multiplicity P-value reported (adjusted for multiplicity)
    Method Cochran-Mantel-Haenszel
    Comments
    Method of Estimation Estimation Parameter Adjusted Difference in Response Rates
    Estimated Value 8.1
    Confidence Interval (2-Sided) 95%
    -2.54 to 17.22
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    6. Secondary Outcome
    Title Induction Phase: Percentage of Participants With Endoscopic Remission at Week 14, as Determined by the MCS Endoscopic Subscore
    Description The MCS ranges from 0 to 12 and is a composite of 4 assessments (each rated from 0-3): stool frequency, rectal bleeding, endoscopy, and physician's global assessment. Higher scores represent greater disease severity. Endoscopic Remission is Endoscopy subscore = 0.
    Time Frame Week 14

    Outcome Measure Data

    Analysis Population Description
    The Modified Intent-to-Treat (mITT) population was defined as all participants randomised in Cohort 2 who received at least one dose of study drug, with participants grouped according to the treatment assigned at randomisation.
    Arm/Group Title Cohort 2: Placebo (Double-Blind Induction Phase) Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Arm/Group Description Participants randomized to this arm will receive treatment with double-blind placebo SC injection Q4W for 14 weeks during the induction phase. Participants randomized to this arm will receive treatment with double-blind etrolizumab 105 mg SC injection Q4W for 14 weeks during the induction phase.
    Measure Participants 95 384
    Number [Percentage of Participants]
    9.5
    7.3%
    17.2
    18.1%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Cohort 2: Placebo (Double-Blind Induction Phase), Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.3881
    Comments Multiplicity P-value reported (adjusted for multiplicity)
    Method Cochran-Mantel-Haenszel
    Comments
    Method of Estimation Estimation Parameter Adjusted Difference in Remission Rates
    Estimated Value 7.6
    Confidence Interval (2-Sided) 95%
    -1.22 to 13.66
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    7. Secondary Outcome
    Title Induction Phase: Percentage of Participants With Histologic Remission at Week 14, as Determined by the Nancy Histological Index
    Description Nancy Histological Index (NHI) is a 5-level classification ranging from grade 0 (No histologically significant disease) to grade 4 (severely active disease). Histologic remission is defined as a Nancy Histological Index of 0 or 1.
    Time Frame Week 14

    Outcome Measure Data

    Analysis Population Description
    The Modified Intent-to-Treat (mITT) population was defined as all participants randomised in Cohort 2 who received at least one dose of study drug, with participants grouped according to the treatment assigned at randomisation. Data presented below is only for participants included in the actual analysis.
    Arm/Group Title Cohort 2: Placebo (Double-Blind Induction Phase) Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Arm/Group Description Participants randomized to this arm will receive treatment with double-blind placebo SC injection Q4W for 14 weeks during the induction phase. Participants randomized to this arm will receive treatment with double-blind etrolizumab 105 mg SC injection Q4W for 14 weeks during the induction phase.
    Measure Participants 80 310
    Number [Percentage of Participants]
    25.0
    19.2%
    29.7
    31.3%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Cohort 2: Placebo (Double-Blind Induction Phase), Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.5879
    Comments Multiplicity P-value reported (adjusted for multiplicity)
    Method Cochran-Mantel-Haenszel
    Comments
    Method of Estimation Estimation Parameter Adjusted Difference in Remission Rates
    Estimated Value 4.9
    Confidence Interval (2-Sided) 95%
    -6.78 to 14.69
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    8. Secondary Outcome
    Title Induction Phase: Change From Baseline to Week 6 in MCS Rectal Bleed Subscore
    Description Rectal bleeding data were collected via the participant's diaries and each day a participant provided a score from 0 to 3 according to the following definitions: 0 = no blood in the stool; 1 = streaks of blood with stool less than half the time; 2 = obvious blood with stool most of the time; 3 = blood alone passed. The Mayo Clinic Score (MCS) rectal bleeding subscore was calculated as the worst value of three days of daily diary scores closest to anchor dates at baseline and post-baseline. The data was considered non-parametric and was reported using RANK analysis of covariance (ANCOVA). Participants were stratified by concomitant treatment with corticosteroids or immunosuppressants at randomization and disease activity measured during screening (MCS ≤9/MCS ≥10); the model adjusted for these stratification factors along with the baseline rectal bleeding (RB) subscore.
    Time Frame Baseline and Week 6

    Outcome Measure Data

    Analysis Population Description
    The Modified Intent-to-Treat (mITT) population was defined as all participants randomised in Cohort 2 who received at least one dose of study drug, with participants grouped according to the treatment assigned at randomisation. Data presented below is only for participants included in the actual analysis.
    Arm/Group Title Cohort 2: Placebo (Double-Blind Induction Phase) Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Arm/Group Description Participants randomized to this arm will receive treatment with double-blind placebo SC injection Q4W for 14 weeks during the induction phase. Participants randomized to this arm will receive treatment with double-blind etrolizumab 105 mg SC injection Q4W for 14 weeks during the induction phase.
    Measure Participants 94 383
    Mean (Standard Deviation) [Score on a Scale]
    -0.4
    (0.8)
    -0.7
    (0.9)
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Cohort 2: Placebo (Double-Blind Induction Phase), Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.0351
    Comments Multiplicity P-value reported (adjusted for multiplicity)
    Method ANCOVA
    Comments
    Method of Estimation Estimation Parameter Difference in Unadjusted Means
    Estimated Value -0.2
    Confidence Interval (2-Sided) 95%
    -0.5 to -0.0
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    9. Secondary Outcome
    Title Induction Phase: Change From Baseline to Week 6 in MCS Stool Frequency Subscore
    Description Stool frequency data were collected via the participant's diaries and each day a participant provided a score from 0 to 3 according to the following definitions: 0 = normal number of stools; 1 = 1 to 2 more stools than normal; 2 = 3 to 4 more stools than normal; 3 = 5 or more stools than normal. The Mayo Clinic Score (MCS) stool frequency subscore was calculated as the average of three days daily diary scores closest to anchor dates at baseline and post-baseline. The data was considered non-parametric and was reported using RANK analysis of covariance (ANCOVA). Participants were stratified by concomitant treatment with corticosteroids or immunosuppressants at randomization and disease activity measured during screening (MCS ≤9/MCS ≥10); the model adjusted for these stratification factors along with the baseline stool frequency (SF) subscore.
    Time Frame Baseline and Week 6

    Outcome Measure Data

    Analysis Population Description
    The Modified Intent-to-Treat (mITT) population was defined as all participants randomised in Cohort 2 who received at least one dose of study drug, with participants grouped according to the treatment assigned at randomisation. Data presented below is only for participants included in the actual analysis.
    Arm/Group Title Cohort 2: Placebo (Double-Blind Induction Phase) Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Arm/Group Description Participants randomized to this arm will receive treatment with double-blind placebo SC injection Q4W for 14 weeks during the induction phase. Participants randomized to this arm will receive treatment with double-blind etrolizumab 105 mg SC injection Q4W for 14 weeks during the induction phase.
    Measure Participants 94 383
    Mean (Standard Deviation) [Score on a Scale]
    -0.5
    (0.9)
    -0.6
    (1.0)
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Cohort 2: Placebo (Double-Blind Induction Phase), Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.2698
    Comments Multiplicity P-value reported (adjusted for multiplicity)
    Method ANCOVA
    Comments
    Method of Estimation Estimation Parameter Difference in Unadjusted Means
    Estimated Value -0.2
    Confidence Interval (2-Sided) 95%
    -0.4 to 0.1
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    10. Secondary Outcome
    Title Induction Phase: Change From Baseline to Week 14 in UC Bowel Movement Signs and Symptoms, as Assessed by the Ulcerative Colitis Patient-Reported Outcome Signs and Symptoms (UC-PRO/SS) Questionnaire
    Description The UC-PRO questionnaire is collected in the e-diary and completed by participants for at least 9-12 consecutive days prior to a study visit. The UC-PRO is being reported in three domains; two domains are key endpoints and reported as UC-PRO Signs and Symptoms (UC-PRO/SS). The bowel domain score ranges from 0-27, with a higher score indicating a worse disease state.
    Time Frame Baseline and Week 14

    Outcome Measure Data

    Analysis Population Description
    The Modified Intent-to-Treat (mITT) population was defined as all participants randomised in Cohort 2 who received at least one dose of study drug, with participants grouped according to the treatment assigned at randomisation. Data presented below is only for participants included in the actual analysis.
    Arm/Group Title Cohort 2: Placebo (Double-Blind Induction Phase) Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Arm/Group Description Participants randomized to this arm will receive treatment with double-blind placebo SC injection Q4W for 14 weeks during the induction phase. Participants randomized to this arm will receive treatment with double-blind etrolizumab 105 mg SC injection Q4W for 14 weeks during the induction phase.
    Measure Participants 80 272
    Least Squares Mean (Standard Error) [Score on a Scale]
    -3.6
    (0.6)
    -5.2
    (0.3)
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Cohort 2: Placebo (Double-Blind Induction Phase), Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.2698
    Comments Multiplicity P-value reported (adjusted for multiplicity)
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter Difference in Least Square Means
    Estimated Value -1.6
    Confidence Interval (2-Sided) 95%
    -2.9 to -0.3
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    11. Secondary Outcome
    Title Induction Phase: Change From Baseline to Week 14 in UC Functional Symptoms, as Assessed by the UC-PRO/SS Questionnaire
    Description The UC-PRO questionnaire is collected in the e-diary and completed by participants for at least 9-12 consecutive days prior to a study visit. The UC-PRO is being reported in three domains; two domains are key endpoints and reported as UC-PRO Signs and Symptoms (UC-PRO/SS). The functional (abdominal symptoms) domain score ranges from 0-12, with a higher score indicating a worse disease state.
    Time Frame Baseline and Week 14

    Outcome Measure Data

    Analysis Population Description
    The Modified Intent-to-Treat (mITT) population was defined as all participants randomised in Cohort 2 who received at least one dose of study drug, with participants grouped according to the treatment assigned at randomisation. Data presented below is only for participants included in the actual analysis.
    Arm/Group Title Cohort 2: Placebo (Double-Blind Induction Phase) Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Arm/Group Description Participants randomized to this arm will receive treatment with double-blind placebo SC injection Q4W for 14 weeks during the induction phase. Participants randomized to this arm will receive treatment with double-blind etrolizumab 105 mg SC injection Q4W for 14 weeks during the induction phase.
    Measure Participants 80 272
    Least Squares Mean (Standard Error) [Score on a Scale]
    -1.1
    (0.2)
    -1.5
    (0.1)
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Cohort 2: Placebo (Double-Blind Induction Phase), Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.3881
    Comments Multiplicity P-value reported (adjusted for multiplicity)
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter Difference in Least Square Means
    Estimated Value -0.5
    Confidence Interval (2-Sided) 95%
    -1.0 to 0.0
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    12. Secondary Outcome
    Title Induction Phase: Change From Baseline to Week 14 in Health-Related Quality of Life, as Assessed by the Overall Score of the Inflammatory Bowel Disease Questionnaire (IBDQ)
    Description The IBDQ score is a Total Score summed up from across all 32 questions on the questionnaire. The Total Score range is from 32 to 224 with higher scores representing a better quality of life.
    Time Frame Baseline and Week 14

    Outcome Measure Data

    Analysis Population Description
    The Modified Intent-to-Treat (mITT) population was defined as all participants randomised in Cohort 2 who received at least one dose of study drug, with participants grouped according to the treatment assigned at randomisation. Data presented below is only for participants included in the actual analysis.
    Arm/Group Title Cohort 2: Placebo (Double-Blind Induction Phase) Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Arm/Group Description Participants randomized to this arm will receive treatment with double-blind placebo SC injection Q4W for 14 weeks during the induction phase. Participants randomized to this arm will receive treatment with double-blind etrolizumab 105 mg SC injection Q4W for 14 weeks during the induction phase.
    Measure Participants 74 293
    Least Squares Mean (Standard Error) [Scores on a Scale]
    28.4
    (4.12)
    37.4
    (2.17)
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Cohort 2: Placebo (Double-Blind Induction Phase), Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.0445
    Comments Nominal P-value reported (not adjusted for multiplicity)
    Method ANCOVA
    Comments
    Method of Estimation Estimation Parameter Difference in Adjusted Means
    Estimated Value 9.1
    Confidence Interval (2-Sided) 95%
    0.2 to 17.9
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    13. Secondary Outcome
    Title Maintenance Phase: Percentage of Participants With Clinical Remission at Week 66 Among Participants Who Had Achieved Clinical Remission at Week 14, as Determined by the MCS
    Description The MCS ranges from 0 to 12 and is a composite of 4 assessments (each rated from 0-3): stool frequency, rectal bleeding, endoscopy, and physician's global assessment. Higher scores represent greater disease severity. Remission was defined as MCS less than or equal to (≤)2 with individual subscores ≤1 and a rectal bleeding subscore of 0. Clinical Remission is MCS ≤2 with individual subscores ≤1.
    Time Frame Week 66

    Outcome Measure Data

    Analysis Population Description
    The Modified Intent-to-Treat (mITT) population was defined as all participants randomised in the maintenance phase who received at least one dose of study drug, with participants grouped according to the treatment assigned at randomisation. Data presented below is only for participants included in the actual analysis.
    Arm/Group Title Etrolizumab Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Etrolizumab (Maintenance Phase)
    Arm/Group Description Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive placebo SC injection Q4W from Week 16 up to Week 66. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive etrolizumab 105 mg SC injection Q4W from Week 16 up to Week 66.
    Measure Participants 44 42
    Number [Percentage of Participants]
    36.4
    28%
    38.1
    40.1%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Cohort 2: Placebo (Double-Blind Induction Phase), Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.9959
    Comments Nominal P-value reported (not adjusted for multiplicity)
    Method Cochran-Mantel-Haenszel
    Comments
    Method of Estimation Estimation Parameter Adjusted Difference in Remission Rates
    Estimated Value 0.1
    Confidence Interval (2-Sided) 95%
    -19.67 to 19.88
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    14. Secondary Outcome
    Title Maintenance Phase: Percentage of Participants With Clinical Remission at Week 66, as Determined by the MCS
    Description The MCS ranges from 0 to 12 and is a composite of 4 assessments (each rated from 0-3): stool frequency, rectal bleeding, endoscopy, and physician's global assessment. Higher scores represent greater disease severity. Remission was defined as MCS less than or equal to (≤)2 with individual subscores ≤1 and a rectal bleeding subscore of 0. Clinical Remission is MCS ≤2 with individual subscores ≤1.
    Time Frame Week 66

    Outcome Measure Data

    Analysis Population Description
    The Modified Intent-to-Treat (mITT) population was defined as all participants randomised in the maintenance phase who received at least one dose of study drug, with participants grouped according to the treatment assigned at randomisation.
    Arm/Group Title Etrolizumab Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Etrolizumab (Maintenance Phase)
    Arm/Group Description Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive placebo SC injection Q4W from Week 16 up to Week 66. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive etrolizumab 105 mg SC injection Q4W from Week 16 up to Week 66.
    Measure Participants 114 112
    Number [Percentage of Participants]
    21.1
    16.2%
    25.0
    26.3%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Cohort 2: Placebo (Double-Blind Induction Phase), Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.5014
    Comments Nominal P-value reported (not adjusted for multiplicity)
    Method Cochran-Mantel-Haenszel
    Comments
    Method of Estimation Estimation Parameter Adjusted Difference in Remission Rates
    Estimated Value 3.8
    Confidence Interval (2-Sided) 95%
    -7.26 to 14.70
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    15. Secondary Outcome
    Title Maintenance Phase: Percentage of Participants With Remission at Week 66 Among Participants Who Had Achieved Remission at Week 14, as Determined by the MCS
    Description The MCS ranges from 0 to 12 and is a composite of 4 assessments (each rated from 0-3): stool frequency, rectal bleeding, endoscopy, and physician's global assessment. Higher scores represent greater disease severity. Remission was defined as MCS less than or equal to (≤)2 with individual subscores ≤1 and a rectal bleeding subscore of 0.
    Time Frame Week 66

    Outcome Measure Data

    Analysis Population Description
    The Modified Intent-to-Treat (mITT) population was defined as all participants randomised in the maintenance phase who received at least one dose of study drug, with participants grouped according to the treatment assigned at randomisation. Data presented below is only for participants included in the actual analysis.
    Arm/Group Title Etrolizumab Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Etrolizumab (Maintenance Phase)
    Arm/Group Description Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive placebo SC injection Q4W from Week 16 up to Week 66. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive etrolizumab 105 mg SC injection Q4W from Week 16 up to Week 66.
    Measure Participants 44 41
    Number [Percentage of Participants]
    34.1
    26.2%
    36.6
    38.5%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Cohort 2: Placebo (Double-Blind Induction Phase), Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.9538
    Comments Nominal P-value reported (not adjusted for multiplicity)
    Method Cochran-Mantel-Haenszel
    Comments
    Method of Estimation Estimation Parameter Adjusted Difference in Remission Rates
    Estimated Value 0.6
    Confidence Interval (2-Sided) 95%
    -19.08 to 20.35
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    16. Secondary Outcome
    Title Maintenance Phase: Percentage of Participants With Improvement From Baseline in Endoscopic Appearance of the Mucosa at Week 66, as Determined by the MCS Endoscopic Subscore
    Description The MCS ranges from 0 to 12 and is a composite of 4 assessments (each rated from 0-3): stool frequency, rectal bleeding, endoscopy, and physician's global assessment. Higher scores represent greater disease severity. Improvement in endoscopic appearance of the mucosa is Endoscopy subscore ≤1.
    Time Frame Baseline and Week 66

    Outcome Measure Data

    Analysis Population Description
    The Modified Intent-to-Treat (mITT) population was defined as all participants randomised in the maintenance phase who received at least one dose of study drug, with participants grouped according to the treatment assigned at randomisation.
    Arm/Group Title Etrolizumab Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Etrolizumab (Maintenance Phase)
    Arm/Group Description Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive placebo SC injection Q4W from Week 16 up to Week 66. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive etrolizumab 105 mg SC injection Q4W from Week 16 up to Week 66.
    Measure Participants 114 112
    Number [Percentage of Participants]
    21.1
    16.2%
    35.7
    37.6%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Cohort 2: Placebo (Double-Blind Induction Phase), Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.0153
    Comments Nominal P-value reported (not adjusted for multiplicity)
    Method Cochran-Mantel-Haenszel
    Comments
    Method of Estimation Estimation Parameter Adjusted Difference in Response Rates
    Estimated Value 14.5
    Confidence Interval (2-Sided) 95%
    2.66 to 25.78
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    17. Secondary Outcome
    Title Maintenance Phase: Percentage of Participants With Histologic Remission at Week 66, as Determined by the Nancy Histological Index
    Description Nancy Histological Index (NHI) is a 5-level classification ranging from grade 0 (No histologically significant disease) to grade 4 (severely active disease). Histologic remission is defined as a Nancy Histological Index of 0 or 1.
    Time Frame Week 66

    Outcome Measure Data

    Analysis Population Description
    The Modified Intent-to-Treat (mITT) population was defined as all participants randomised in the maintenance phase who received at least one dose of study drug, with participants grouped according to the treatment assigned at randomisation. Data presented below is only for participants included in the actual analysis.
    Arm/Group Title Etrolizumab Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Etrolizumab (Maintenance Phase)
    Arm/Group Description Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive placebo SC injection Q4W from Week 16 up to Week 66. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive etrolizumab 105 mg SC injection Q4W from Week 16 up to Week 66.
    Measure Participants 92 91
    Number [Percentage of Participants]
    14.1
    10.8%
    30.8
    32.4%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Cohort 2: Placebo (Double-Blind Induction Phase), Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.0073
    Comments Nominal P-value reported (not adjusted for multiplicity)
    Method Cochran-Mantel-Haenszel
    Comments
    Method of Estimation Estimation Parameter Adjusted Difference in Remission Rates
    Estimated Value 16.8
    Confidence Interval (2-Sided) 95%
    4.44 to 28.41
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    18. Secondary Outcome
    Title Maintenance Phase: Percentage of Participants With Endoscopic Remission at Week 66, as Determined by the MCS Endoscopic Subscore
    Description The MCS ranges from 0 to 12 and is a composite of 4 assessments (each rated from 0-3): stool frequency, rectal bleeding, endoscopy, and physician's global assessment. Higher scores represent greater disease severity. Endoscopic Remission is Endoscopy subscore = 0.
    Time Frame Week 66

    Outcome Measure Data

    Analysis Population Description
    The Modified Intent-to-Treat (mITT) population was defined as all participants randomised in the maintenance phase who received at least one dose of study drug, with participants grouped according to the treatment assigned at randomisation.
    Arm/Group Title Etrolizumab Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Etrolizumab (Maintenance Phase)
    Arm/Group Description Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive placebo SC injection Q4W from Week 16 up to Week 66. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive etrolizumab 105 mg SC injection Q4W from Week 16 up to Week 66.
    Measure Participants 114 112
    Number [Percentage of Participants]
    11.4
    8.8%
    23.2
    24.4%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Cohort 2: Placebo (Double-Blind Induction Phase), Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.0174
    Comments Nominal P-value reported (not adjusted for multiplicity)
    Method Cochran-Mantel-Haenszel
    Comments
    Method of Estimation Estimation Parameter Adjusted Difference in Remission Rates
    Estimated Value 11.9
    Confidence Interval (2-Sided) 95%
    1.87 to 21.71
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    19. Secondary Outcome
    Title Maintenance Phase: Percentage of Participants With Corticosteroid-Free Clinical Remission at Week 66 Among Participants Who Were Receiving Corticosteroids at Baseline, as Determined by the MCS
    Description The MCS ranges from 0 to 12 and is a composite of 4 assessments (each rated from 0-3): stool frequency, rectal bleeding, endoscopy, and physician's global assessment. Higher scores represent greater disease severity. Corticosteroid-Free analysis was conducted only on a subgroup of participants who were randomized into the maintenance phase and receiving Corticosteroids (CS) at baseline. Participants were defined as being off CS if they had no record of taking CS on the date that was 24 weeks prior to Week 66.
    Time Frame Week 66

    Outcome Measure Data

    Analysis Population Description
    The Modified Intent-to-Treat (mITT) population was defined as all participants randomised in the maintenance phase who received at least one dose of study drug, with participants grouped according to the treatment assigned at randomisation. Data presented below is only for participants included in the actual analysis.
    Arm/Group Title Etrolizumab Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Etrolizumab (Maintenance Phase)
    Arm/Group Description Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive placebo SC injection Q4W from Week 16 up to Week 66. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive etrolizumab 105 mg SC injection Q4W from Week 16 up to Week 66.
    Measure Participants 55 54
    Number [Percentage of Participants]
    12.7
    9.8%
    20.4
    21.5%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Cohort 2: Placebo (Double-Blind Induction Phase), Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.3015
    Comments Nominal P-value reported (not adjusted for multiplicity)
    Method Cochran-Mantel-Haenszel
    Comments
    Method of Estimation Estimation Parameter Adjusted Difference in Remission Rates
    Estimated Value 7.3
    Confidence Interval (2-Sided) 95%
    -6.83 to 21.60
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    20. Secondary Outcome
    Title Maintenance Phase: Percentage of Participants With Corticosteroid-Free Remission at Week 66 Among Participants Who Were Receiving Corticosteroids at Baseline, as Determined by the MCS
    Description The MCS ranges from 0 to 12 and is a composite of 4 assessments (each rated from 0-3): stool frequency, rectal bleeding, endoscopy, and physician's global assessment. Higher scores represent greater disease severity. Corticosteroid-Free analysis was conducted only on a subgroup of participants who were randomized into the maintenance phase and receiving Corticosteroids (CS) at baseline. Participants were defined as being off CS if they had no record of taking CS on the date that was 24 weeks prior to Week 66.
    Time Frame Week 66

    Outcome Measure Data

    Analysis Population Description
    The Modified Intent-to-Treat (mITT) population was defined as all participants randomised in the maintenance phase who received at least one dose of study drug, with participants grouped according to the treatment assigned at randomisation. Data presented below is only for participants included in the actual analysis.
    Arm/Group Title Etrolizumab Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Etrolizumab (Maintenance Phase)
    Arm/Group Description Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive placebo SC injection Q4W from Week 16 up to Week 66. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive etrolizumab 105 mg SC injection Q4W from Week 16 up to Week 66.
    Measure Participants 55 54
    Number [Percentage of Participants]
    10.9
    8.4%
    18.5
    19.5%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Cohort 2: Placebo (Double-Blind Induction Phase), Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.2787
    Comments Nominal P-value reported (not adjusted for multiplicity)
    Method Cochran-Mantel-Haenszel
    Comments
    Method of Estimation Estimation Parameter Adjusted Difference in Remission Rates
    Estimated Value 7.4
    Confidence Interval (2-Sided) 95%
    -6.23 to 21.17
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    21. Secondary Outcome
    Title Maintenance Phase: Change From Baseline to Week 66 in UC Bowel Movement Signs and Symptoms, as Assessed by the UC-PRO/SS Questionnaire
    Description The UC-PRO questionnaire is collected in the e-diary and completed by participants for at least 9-12 consecutive days prior to a study visit. The UC-PRO is being reported in three domains; two domains are key endpoints and reported as UC-PRO Signs and Symptoms (UC-PRO/SS). The bowel domain score ranges from 0-27, with a higher score indicating a worse disease state.
    Time Frame Baseline and Week 66

    Outcome Measure Data

    Analysis Population Description
    The Modified Intent-to-Treat (mITT) population was defined as all participants randomised in the maintenance phase who received at least one dose of study drug, with participants grouped according to the treatment assigned at randomisation. Data presented below is only for participants included in the actual analysis.
    Arm/Group Title Etrolizumab Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Etrolizumab (Maintenance Phase)
    Arm/Group Description Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive placebo SC injection Q4W from Week 16 up to Week 66. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive etrolizumab 105 mg SC injection Q4W from Week 16 up to Week 66.
    Measure Participants 83 83
    Least Squares Mean (Standard Error) [Score on a Scale]
    -6.3
    (0.6)
    -7.8
    (0.6)
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Cohort 2: Placebo (Double-Blind Induction Phase), Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.0763
    Comments Nominal P-value reported (not adjusted for multiplicity)
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter Difference in Least Square Means
    Estimated Value -1.5
    Confidence Interval (2-Sided) 95%
    -3.1 to 0.2
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    22. Secondary Outcome
    Title Maintenance Phase: Change From Baseline to Week 66 in UC Functional Symptoms, as Assessed by the UC-PRO/SS Questionnaire
    Description The UC-PRO questionnaire is collected in the e-diary and completed by participants for at least 9-12 consecutive days prior to a study visit. The UC-PRO is being reported in three domains; two domains are key endpoints and reported as UC-PRO Signs and Symptoms (UC-PRO/SS). The functional (abdominal symptoms) domain score ranges from 0-12, with a higher score indicating a worse disease state.
    Time Frame Baseline and Week 66

    Outcome Measure Data

    Analysis Population Description
    The Modified Intent-to-Treat (mITT) population was defined as all participants randomised in the maintenance phase who received at least one dose of study drug, with participants grouped according to the treatment assigned at randomisation. Data presented below is only for participants included in the actual analysis.
    Arm/Group Title Etrolizumab Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Etrolizumab (Maintenance Phase)
    Arm/Group Description Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive placebo SC injection Q4W from Week 16 up to Week 66. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive etrolizumab 105 mg SC injection Q4W from Week 16 up to Week 66.
    Measure Participants 83 83
    Least Squares Mean (Standard Error) [Score on a Scale]
    -1.8
    (0.3)
    -2.0
    (0.3)
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Cohort 2: Placebo (Double-Blind Induction Phase), Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.5329
    Comments Nominal P-value reported (not adjusted for multiplicity)
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter Difference in Least Square Means
    Estimated Value -0.2
    Confidence Interval (2-Sided) 95%
    -1.0 to 0.5
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    23. Secondary Outcome
    Title Maintenance Phase: Change From Baseline to Week 66 in Health-Related Quality of Life, as Assessed by the Overall Score of the IBDQ
    Description The IBDQ is used to assess participant's health-related quality of life (QOL). The IBDQ score is a Total Score summed up from across all 32 questions on the questionnaire. The Total Score range is from 32 to 224 with higher scores representing a better quality of life.
    Time Frame Baseline and Week 66

    Outcome Measure Data

    Analysis Population Description
    The Modified Intent-to-Treat (mITT) population was defined as all participants randomised in the maintenance phase who received at least one dose of study drug, with participants grouped according to the treatment assigned at randomisation. Data presented below is only for participants included in the actual analysis.
    Arm/Group Title Etrolizumab Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Etrolizumab (Maintenance Phase)
    Arm/Group Description Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive placebo SC injection Q4W from Week 16 up to Week 66. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive etrolizumab 105 mg SC injection Q4W from Week 16 up to Week 66.
    Measure Participants 99 99
    Least Squares Mean (Standard Error) [Scores on a Scale]
    57.2
    (3.1)
    52.3
    (3.1)
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Cohort 2: Placebo (Double-Blind Induction Phase), Cohort 2: Etrolizumab (Double-Blind Induction Phase)
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.2228
    Comments Nominal P-value reported (not adjusted for multiplicity)
    Method ANCOVA
    Comments
    Method of Estimation Estimation Parameter Difference in Adjusted Means
    Estimated Value -4.9
    Confidence Interval (2-Sided) 95%
    -12.7 to 3.0
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    24. Secondary Outcome
    Title Number of Participants With at Least One Adverse Event by Severity, According to National Cancer Institute Common Terminology Criteria for Adverse Events, Version 4.0 (NCI-CTCAE v4.0)
    Description All Adverse Events (AEs) were graded for severity using the NCI-CTCAE v4.0. Any AE not specifically listed was assessed per the following 5 grades: Grade 1 = mild; asymptomatic or mild symptoms; clinical or diagnostic observations only; or intervention not indicated. Grade 2 = moderate; minimal, local, or non-invasive intervention indicated; or limiting age-appropriate instrumental activities of daily living. Grade 3 = severe or medically significant, but not immediately life-threatening; hospitalization or prolongation of hospitalization indicated; disabling; or limiting self-care activities of daily living. Grade 4 = life-threatening consequences or urgent intervention indicated. Grade 5 = death related to AE. Not all grades are appropriate for all AEs; some AEs have fewer than 5 options. The terms "severe" and "serious" are not synonymous and are independently assessed for each AE. Multiple occurrences of AEs were counted only once per participant at the highest (worst) grade.
    Time Frame From Baseline up to Week 78

    Outcome Measure Data

    Analysis Population Description
    The Safety Population was defined as all participants who received at least one dose of study drug during the induction and maintenance phases. Participants were grouped by cohort and included in the treatment arm for the treatment most frequently received during the induction and maintenance phases.
    Arm/Group Title Cohort 1: Etrolizumab (Open-Label Induction (OLI) Phase) Cohort 2: Placebo (Double-Blind Induction Phase) Cohort 2: Etrolizumab (Double-Blind Induction Phase) Placebo Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Etrolizumab (Maintenance Phase)
    Arm/Group Description Participants assigned to this arm will receive treatment with open-label etrolizumab 105 milligrams (mg) subcutaneous (SC) injection once every 4 weeks (Q4W) for 14 weeks during the induction phase. Participants randomized to this arm will receive treatment with double-blind placebo SC injection Q4W for 14 weeks during the induction phase. Participants randomized to this arm will receive treatment with double-blind etrolizumab 105 mg SC injection Q4W for 14 weeks during the induction phase. Participants who received placebo during the induction phase, Cohort 2: Placebo (Double-Blind Induction Phase), and achieve a clinical response with placebo at Week 14 will continue to receive blinded placebo from Week 16 up to Week 66 during the maintenance phase. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive placebo SC injection Q4W from Week 16 up to Week 66. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive etrolizumab 105 mg SC injection Q4W from Week 16 up to Week 66.
    Measure Participants 130 95 384 27 114 112
    Grade 1
    39
    30%
    31
    32.6%
    117
    30.5%
    8
    29.6%
    19
    16.5%
    33
    28.2%
    Grade 2
    38
    29.2%
    26
    27.4%
    97
    25.3%
    14
    51.9%
    64
    55.7%
    45
    38.5%
    Grade 3
    15
    11.5%
    5
    5.3%
    37
    9.6%
    1
    3.7%
    14
    12.2%
    19
    16.2%
    Grade 4
    0
    0%
    1
    1.1%
    2
    0.5%
    0
    0%
    0
    0%
    1
    0.9%
    Grade 5
    0
    0%
    0
    0%
    0
    0%
    0
    0%
    0
    0%
    0
    0%
    25. Secondary Outcome
    Title Number of Participants With Adverse Events Leading to Study Drug Discontinuation
    Description
    Time Frame From Baseline up to Week 78

    Outcome Measure Data

    Analysis Population Description
    The Safety Population was defined as all participants who received at least one dose of study drug during the induction and maintenance phases. Participants were grouped by cohort and included in the treatment arm for the treatment most frequently received during the induction and maintenance phases.
    Arm/Group Title Cohort 1: Etrolizumab (Open-Label Induction (OLI) Phase) Cohort 2: Placebo (Double-Blind Induction Phase) Cohort 2: Etrolizumab (Double-Blind Induction Phase) Placebo Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Etrolizumab (Maintenance Phase)
    Arm/Group Description Participants assigned to this arm will receive treatment with open-label etrolizumab 105 milligrams (mg) subcutaneous (SC) injection once every 4 weeks (Q4W) for 14 weeks during the induction phase. Participants randomized to this arm will receive treatment with double-blind placebo SC injection Q4W for 14 weeks during the induction phase. Participants randomized to this arm will receive treatment with double-blind etrolizumab 105 mg SC injection Q4W for 14 weeks during the induction phase. Participants who received placebo during the induction phase, Cohort 2: Placebo (Double-Blind Induction Phase), and achieve a clinical response with placebo at Week 14 will continue to receive blinded placebo from Week 16 up to Week 66 during the maintenance phase. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive placebo SC injection Q4W from Week 16 up to Week 66. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive etrolizumab 105 mg SC injection Q4W from Week 16 up to Week 66.
    Measure Participants 130 95 384 27 114 112
    Number [Participants]
    2
    1.5%
    1
    1.1%
    12
    3.1%
    4
    14.8%
    9
    7.8%
    10
    8.5%
    26. Secondary Outcome
    Title Number of Participants With Serious Infection-Related Adverse Events
    Description
    Time Frame From Baseline up to Week 78

    Outcome Measure Data

    Analysis Population Description
    The Safety Population was defined as all participants who received at least one dose of study drug during the induction and maintenance phases. Participants were grouped by cohort and included in the treatment arm for the treatment most frequently received during the induction and maintenance phases.
    Arm/Group Title Cohort 1: Etrolizumab (Open-Label Induction (OLI) Phase) Cohort 2: Placebo (Double-Blind Induction Phase) Cohort 2: Etrolizumab (Double-Blind Induction Phase) Placebo Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Etrolizumab (Maintenance Phase)
    Arm/Group Description Participants assigned to this arm will receive treatment with open-label etrolizumab 105 milligrams (mg) subcutaneous (SC) injection once every 4 weeks (Q4W) for 14 weeks during the induction phase. Participants randomized to this arm will receive treatment with double-blind placebo SC injection Q4W for 14 weeks during the induction phase. Participants randomized to this arm will receive treatment with double-blind etrolizumab 105 mg SC injection Q4W for 14 weeks during the induction phase. Participants who received placebo during the induction phase, Cohort 2: Placebo (Double-Blind Induction Phase), and achieve a clinical response with placebo at Week 14 will continue to receive blinded placebo from Week 16 up to Week 66 during the maintenance phase. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive placebo SC injection Q4W from Week 16 up to Week 66. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive etrolizumab 105 mg SC injection Q4W from Week 16 up to Week 66.
    Measure Participants 130 95 384 27 114 112
    Number [Participants]
    2
    1.5%
    1
    1.1%
    5
    1.3%
    0
    0%
    3
    2.6%
    3
    2.6%
    27. Secondary Outcome
    Title Number of Participants With Infection-Related Adverse Events
    Description All Adverse Events (AEs) were graded for severity using the NCI-CTCAE v4.0. Any AE not specifically listed was assessed per the following 5 grades: Grade 1 = mild; asymptomatic or mild symptoms; clinical or diagnostic observations only; or intervention not indicated. Grade 2 = moderate; minimal, local, or non-invasive intervention indicated; or limiting age-appropriate instrumental activities of daily living. Grade 3 = severe or medically significant, but not immediately life-threatening; hospitalization or prolongation of hospitalization indicated; disabling; or limiting self-care activities of daily living. Grade 4 = life-threatening consequences or urgent intervention indicated. Not all grades are appropriate for all AEs; some AEs have fewer than 5 options. The terms "severe" and "serious" are not synonymous and are independently assessed for each AE. Multiple occurrences of AEs were counted only once per participant at the highest (worst) grade.
    Time Frame From Baseline up to Week 78

    Outcome Measure Data

    Analysis Population Description
    The Safety Population was defined as all participants who received at least one dose of study drug during the induction and maintenance phases. Participants were grouped by cohort and included in the treatment arm for the treatment most frequently received during the induction and maintenance phases.
    Arm/Group Title Cohort 1: Etrolizumab (Open-Label Induction (OLI) Phase) Cohort 2: Placebo (Double-Blind Induction Phase) Cohort 2: Etrolizumab (Double-Blind Induction Phase) Placebo Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Etrolizumab (Maintenance Phase)
    Arm/Group Description Participants assigned to this arm will receive treatment with open-label etrolizumab 105 milligrams (mg) subcutaneous (SC) injection once every 4 weeks (Q4W) for 14 weeks during the induction phase. Participants randomized to this arm will receive treatment with double-blind placebo SC injection Q4W for 14 weeks during the induction phase. Participants randomized to this arm will receive treatment with double-blind etrolizumab 105 mg SC injection Q4W for 14 weeks during the induction phase. Participants who received placebo during the induction phase, Cohort 2: Placebo (Double-Blind Induction Phase), and achieve a clinical response with placebo at Week 14 will continue to receive blinded placebo from Week 16 up to Week 66 during the maintenance phase. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive placebo SC injection Q4W from Week 16 up to Week 66. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive etrolizumab 105 mg SC injection Q4W from Week 16 up to Week 66.
    Measure Participants 130 95 384 27 114 112
    Number [Participants]
    38
    29.2%
    29
    30.5%
    100
    26%
    13
    48.1%
    44
    38.3%
    58
    49.6%
    28. Secondary Outcome
    Title Number of Participants With Injection-Site Reaction-Related Adverse Events
    Description
    Time Frame From Baseline up to Week 78

    Outcome Measure Data

    Analysis Population Description
    The Safety Population was defined as all participants who received at least one dose of study drug during the induction and maintenance phases. Participants were grouped by cohort and included in the treatment arm for the treatment most frequently received during the induction and maintenance phases.
    Arm/Group Title Cohort 1: Etrolizumab (Open-Label Induction (OLI) Phase) Cohort 2: Placebo (Double-Blind Induction Phase) Cohort 2: Etrolizumab (Double-Blind Induction Phase) Placebo Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Etrolizumab (Maintenance Phase)
    Arm/Group Description Participants assigned to this arm will receive treatment with open-label etrolizumab 105 milligrams (mg) subcutaneous (SC) injection once every 4 weeks (Q4W) for 14 weeks during the induction phase. Participants randomized to this arm will receive treatment with double-blind placebo SC injection Q4W for 14 weeks during the induction phase. Participants randomized to this arm will receive treatment with double-blind etrolizumab 105 mg SC injection Q4W for 14 weeks during the induction phase. Participants who received placebo during the induction phase, Cohort 2: Placebo (Double-Blind Induction Phase), and achieve a clinical response with placebo at Week 14 will continue to receive blinded placebo from Week 16 up to Week 66 during the maintenance phase. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive placebo SC injection Q4W from Week 16 up to Week 66. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive etrolizumab 105 mg SC injection Q4W from Week 16 up to Week 66.
    Measure Participants 130 95 384 27 114 112
    Number [Participants]
    7
    5.4%
    5
    5.3%
    4
    1%
    2
    7.4%
    2
    1.7%
    8
    6.8%
    29. Secondary Outcome
    Title Number of Participants With Hypersensitivity Reaction-Related Adverse Events
    Description
    Time Frame From Baseline up to Week 78

    Outcome Measure Data

    Analysis Population Description
    The Safety Population was defined as all participants who received at least one dose of study drug during the induction and maintenance phases. Participants were grouped by cohort and included in the treatment arm for the treatment most frequently received during the induction and maintenance phases.
    Arm/Group Title Cohort 1: Etrolizumab (Open-Label Induction (OLI) Phase) Cohort 2: Placebo (Double-Blind Induction Phase) Cohort 2: Etrolizumab (Double-Blind Induction Phase) Placebo Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Etrolizumab (Maintenance Phase)
    Arm/Group Description Participants assigned to this arm will receive treatment with open-label etrolizumab 105 milligrams (mg) subcutaneous (SC) injection once every 4 weeks (Q4W) for 14 weeks during the induction phase. Participants randomized to this arm will receive treatment with double-blind placebo SC injection Q4W for 14 weeks during the induction phase. Participants randomized to this arm will receive treatment with double-blind etrolizumab 105 mg SC injection Q4W for 14 weeks during the induction phase. Participants who received placebo during the induction phase, Cohort 2: Placebo (Double-Blind Induction Phase), and achieve a clinical response with placebo at Week 14 will continue to receive blinded placebo from Week 16 up to Week 66 during the maintenance phase. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive placebo SC injection Q4W from Week 16 up to Week 66. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive etrolizumab 105 mg SC injection Q4W from Week 16 up to Week 66.
    Measure Participants 130 95 384 27 114 112
    Number [Participants]
    0
    0%
    0
    0%
    0
    0%
    0
    0%
    0
    0%
    0
    0%
    30. Secondary Outcome
    Title Number of Participants With Malignancies
    Description
    Time Frame From Baseline up to Week 78

    Outcome Measure Data

    Analysis Population Description
    The Safety Population was defined as all participants who received at least one dose of study drug during the induction and maintenance phases. Participants were grouped by cohort and included in the treatment arm for the treatment most frequently received during the induction and maintenance phases.
    Arm/Group Title Cohort 1: Etrolizumab (Open-Label Induction (OLI) Phase) Cohort 2: Placebo (Double-Blind Induction Phase) Cohort 2: Etrolizumab (Double-Blind Induction Phase) Placebo Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Etrolizumab (Maintenance Phase)
    Arm/Group Description Participants assigned to this arm will receive treatment with open-label etrolizumab 105 milligrams (mg) subcutaneous (SC) injection once every 4 weeks (Q4W) for 14 weeks during the induction phase. Participants randomized to this arm will receive treatment with double-blind placebo SC injection Q4W for 14 weeks during the induction phase. Participants randomized to this arm will receive treatment with double-blind etrolizumab 105 mg SC injection Q4W for 14 weeks during the induction phase. Participants who received placebo during the induction phase, Cohort 2: Placebo (Double-Blind Induction Phase), and achieve a clinical response with placebo at Week 14 will continue to receive blinded placebo from Week 16 up to Week 66 during the maintenance phase. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive placebo SC injection Q4W from Week 16 up to Week 66. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive etrolizumab 105 mg SC injection Q4W from Week 16 up to Week 66.
    Measure Participants 130 95 384 27 114 112
    Number [Participants]
    0
    0%
    0
    0%
    2
    0.5%
    0
    0%
    0
    0%
    2
    1.7%
    31. Secondary Outcome
    Title Number of Participants With Anti-Therapeutic Antibodies to Etrolizumab at Baseline and During the Study
    Description A tiered strategy was used to detect and characterize etrolizumab antibodies within this clinical study. When determining post baseline incidence, participants were considered to be ADA positive if they were ADA negative or had missing data at baseline but developed an ADA response following etrolizumab drug exposure (treatment-induced ADA response), or if they were ADA positive at baseline and the titer of one or more post baseline samples was at least 0.60 titer unit greater than the titer of the baseline sample (treatment-enhanced ADA response). Participants were considered to be ADA negative if they were ADA negative or had missing data at baseline and all post baseline samples were negative, or if they were ADA positive at baseline but did not have any post baseline samples with a titer that was at least 0.60 titer unit greater than the titer of the baseline sample (treatment unaffected).
    Time Frame Pre-dose at Baseline, Weeks 4, 14, 24, 44, and 66, and Early Termination/End of Safety Follow-Up (up to Week 78)

    Outcome Measure Data

    Analysis Population Description
    Participants who received at least one dose of study treatment and had at least one baseline or post-baseline ATA result from at least one sample. For the Induction Phase, data for Cohorts 1 and 2 are combined to present the Etrolizumab Induction data for participants not randomised into the Maintenance phase.
    Arm/Group Title Cohort 1: Etrolizumab (OLI Phase) + Cohort 2: Etrolizumab (Double-Blind Induction Phase) Etrolizumab Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Etrolizumab (Maintenance Phase)
    Arm/Group Description Cohort 1: Participants assigned to this arm will receive treatment with open-label etrolizumab 105 milligrams (mg) subcutaneous (SC) injection once every 4 weeks (Q4W) for 14 weeks during the induction phase. Cohort 2: Participants randomized to this arm will receive treatment with double-blind etrolizumab 105 mg SC injection Q4W for 14 weeks during the induction phase. Participants in this arm did not enter into the Maintenance phase of the study. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive placebo SC injection Q4W from Week 16 up to Week 66. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive etrolizumab 105 mg SC injection Q4W from Week 16 up to Week 66.
    Measure Participants 286 114 112
    Baseline
    9
    6.9%
    2
    2.1%
    6
    1.6%
    Post-Baseline
    68
    52.3%
    35
    36.8%
    28
    7.3%
    32. Secondary Outcome
    Title Etrolizumab Serum Trough Concentration (for Arms/Timepoints Above LLOQ)
    Description As per Protocol, the timepoints for each arm where more than a third of the samples were above the lower limit of quantification (LLOQ), full summary statistics (Mean and Standard Deviation) were reported. For timepoints below the LLOQ, only the Median and Max were reported as a separate outcome measure below.
    Time Frame Pre-dose (0 hour) at Baseline and Weeks 14, 24, 44 and 66

    Outcome Measure Data

    Analysis Population Description
    All participants who received at least one dose of study drug and had evaluable PK data. For the Induction Phase, data for Cohorts 1 and 2 are combined to present the Etrolizumab Induction data for participants not randomised into the Maintenance phase.
    Arm/Group Title Cohort 1: Etrolizumab (OLI Phase) + Cohort 2: Etrolizumab (Double-Blind Induction Phase) Etrolizumab Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Etrolizumab (Maintenance Phase)
    Arm/Group Description Cohort 1: Participants assigned to this arm will receive treatment with open-label etrolizumab 105 milligrams (mg) subcutaneous (SC) injection once every 4 weeks (Q4W) for 14 weeks during the induction phase. Cohort 2: Participants randomized to this arm will receive treatment with double-blind etrolizumab 105 mg SC injection Q4W for 14 weeks during the induction phase. Participants in this arm did not enter into the Maintenance phase of the study. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive placebo SC injection Q4W from Week 16 up to Week 66. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive etrolizumab 105 mg SC injection Q4W from Week 16 up to Week 66.
    Measure Participants 251 113 110
    Week 14
    11.0
    (4.66)
    12.7
    (5.50)
    14.0
    (6.12)
    Week 24
    0.474
    (0.742)
    9.55
    (5.24)
    Week 44
    10.7
    (5.72)
    Week 66
    16.2
    (7.75)
    33. Secondary Outcome
    Title Etrolizumab Serum Trough Concentration (for Arms/Timepoints Below LLOQ)
    Description As per Protocol, the timepoints for each arm where more than a third of the samples were below the LLOQ only the Median and Max were reported.
    Time Frame Weeks 44 and 66

    Outcome Measure Data

    Analysis Population Description
    All participants who received at least one dose of study drug and had evaluable PK data and were part of the timepoints that had more than a third of samples below LLOQ. For the Induction Phase, data for Cohorts 1 and 2 are combined to present the Etrolizumab Induction data for participants not randomised into the Maintenance phase.
    Arm/Group Title Etrolizumab Responders: Placebo (Maintenance Phase)
    Arm/Group Description Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive placebo SC injection Q4W from Week 16 up to Week 66.
    Measure Participants 113
    Week 44
    0.0400
    Week 66
    0.0400

    Adverse Events

    Time Frame Baseline up until a maximum of 78 weeks.
    Adverse Event Reporting Description
    Arm/Group Title Cohort 1: Etrolizumab (Open-Label Induction (OLI) Phase) Cohort 2: Placebo (Double-Blind Induction Phase) Cohort 2: Etrolizumab (Double-Blind Induction Phase) Placebo Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Etrolizumab (Maintenance Phase)
    Arm/Group Description Participants assigned to this arm will receive treatment with open-label etrolizumab 105 milligrams (mg) subcutaneous (SC) injection once every 4 weeks (Q4W) for 14 weeks during the induction phase. Participants randomized to this arm will receive treatment with double-blind placebo SC injection Q4W for 14 weeks during the induction phase. Participants randomized to this arm will receive treatment with double-blind etrolizumab 105 mg SC injection Q4W for 14 weeks during the induction phase. Participants who received placebo during the induction phase, Cohort 2: Placebo (Double-Blind Induction Phase), and achieve a clinical response with placebo at Week 14 will continue to receive blinded placebo from Week 16 up to Week 66 during the maintenance phase. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive placebo SC injection Q4W from Week 16 up to Week 66. Participants who received etrolizumab during the induction phase, Cohort 1: Etrolizumab (Open-Label Induction Phase) and Cohort 2: Etrolizumab (Double-Blind Induction Phase), and achieved a clinical response at Week 14 will be re-randomized by Week 16 for the double-blind maintenance phase. Clinical responders re-randomized to this arm will receive etrolizumab 105 mg SC injection Q4W from Week 16 up to Week 66.
    All Cause Mortality
    Cohort 1: Etrolizumab (Open-Label Induction (OLI) Phase) Cohort 2: Placebo (Double-Blind Induction Phase) Cohort 2: Etrolizumab (Double-Blind Induction Phase) Placebo Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Etrolizumab (Maintenance Phase)
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 0/130 (0%) 0/95 (0%) 0/384 (0%) 0/27 (0%) 0/114 (0%) 0/112 (0%)
    Serious Adverse Events
    Cohort 1: Etrolizumab (Open-Label Induction (OLI) Phase) Cohort 2: Placebo (Double-Blind Induction Phase) Cohort 2: Etrolizumab (Double-Blind Induction Phase) Placebo Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Etrolizumab (Maintenance Phase)
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 11/130 (8.5%) 5/95 (5.3%) 20/384 (5.2%) 2/27 (7.4%) 7/114 (6.1%) 11/112 (9.8%)
    Blood and lymphatic system disorders
    Anaemia 0/130 (0%) 0 2/95 (2.1%) 3 1/384 (0.3%) 1 0/27 (0%) 0 2/114 (1.8%) 2 0/112 (0%) 0
    Gastrointestinal disorders
    Cheilitis 0/130 (0%) 0 0/95 (0%) 0 1/384 (0.3%) 1 0/27 (0%) 0 0/114 (0%) 0 0/112 (0%) 0
    Colitis ulcerative 6/130 (4.6%) 6 2/95 (2.1%) 3 10/384 (2.6%) 10 0/27 (0%) 0 2/114 (1.8%) 2 1/112 (0.9%) 1
    Diarrhoea 0/130 (0%) 0 1/95 (1.1%) 1 1/384 (0.3%) 1 1/27 (3.7%) 1 0/114 (0%) 0 0/112 (0%) 0
    Gastrointestinal necrosis 0/130 (0%) 0 0/95 (0%) 0 1/384 (0.3%) 1 0/27 (0%) 0 0/114 (0%) 0 0/112 (0%) 0
    Intestinal haemorrhage 0/130 (0%) 0 0/95 (0%) 0 1/384 (0.3%) 1 0/27 (0%) 0 0/114 (0%) 0 0/112 (0%) 0
    Pouchitis 0/130 (0%) 0 1/95 (1.1%) 1 0/384 (0%) 0 0/27 (0%) 0 0/114 (0%) 0 0/112 (0%) 0
    General disorders
    Oedema peripheral 1/130 (0.8%) 1 0/95 (0%) 0 0/384 (0%) 0 0/27 (0%) 0 1/114 (0.9%) 1 0/112 (0%) 0
    Infections and infestations
    Abdominal abscess 0/130 (0%) 0 1/95 (1.1%) 1 0/384 (0%) 0 0/27 (0%) 0 0/114 (0%) 0 0/112 (0%) 0
    Abscess 0/130 (0%) 0 0/95 (0%) 0 1/384 (0.3%) 1 0/27 (0%) 0 0/114 (0%) 0 0/112 (0%) 0
    Appendicitis 0/130 (0%) 0 0/95 (0%) 0 0/384 (0%) 0 0/27 (0%) 0 0/114 (0%) 0 2/112 (1.8%) 2
    Atypical pneumonia 0/130 (0%) 0 0/95 (0%) 0 0/384 (0%) 0 0/27 (0%) 0 1/114 (0.9%) 1 0/112 (0%) 0
    Clostridium difficile infection 0/130 (0%) 0 0/95 (0%) 0 1/384 (0.3%) 1 0/27 (0%) 0 1/114 (0.9%) 1 0/112 (0%) 0
    Cytomegalovirus infection 0/130 (0%) 0 0/95 (0%) 0 0/384 (0%) 0 0/27 (0%) 0 1/114 (0.9%) 1 0/112 (0%) 0
    Erysipelas 0/130 (0%) 0 0/95 (0%) 0 1/384 (0.3%) 1 0/27 (0%) 0 0/114 (0%) 0 0/112 (0%) 0
    Herpes zoster 1/130 (0.8%) 1 0/95 (0%) 0 0/384 (0%) 0 0/27 (0%) 0 0/114 (0%) 0 0/112 (0%) 0
    Influenza 1/130 (0.8%) 1 0/95 (0%) 0 0/384 (0%) 0 0/27 (0%) 0 0/114 (0%) 0 0/112 (0%) 0
    Osteomyelitis 1/130 (0.8%) 1 0/95 (0%) 0 0/384 (0%) 0 0/27 (0%) 0 0/114 (0%) 0 0/112 (0%) 0
    Pneumonia bacterial 0/130 (0%) 0 0/95 (0%) 0 0/384 (0%) 0 0/27 (0%) 0 1/114 (0.9%) 1 0/112 (0%) 0
    Tonsillitis 0/130 (0%) 0 0/95 (0%) 0 0/384 (0%) 0 0/27 (0%) 0 0/114 (0%) 0 1/112 (0.9%) 1
    Upper respiratory tract infection 0/130 (0%) 0 0/95 (0%) 0 1/384 (0.3%) 1 0/27 (0%) 0 0/114 (0%) 0 0/112 (0%) 0
    Viral infection 0/130 (0%) 0 0/95 (0%) 0 1/384 (0.3%) 1 0/27 (0%) 0 0/114 (0%) 0 0/112 (0%) 0
    Metabolism and nutrition disorders
    Hypokalaemia 0/130 (0%) 0 0/95 (0%) 0 0/384 (0%) 0 0/27 (0%) 0 0/114 (0%) 0 1/112 (0.9%) 1
    Musculoskeletal and connective tissue disorders
    Back pain 1/130 (0.8%) 1 0/95 (0%) 0 0/384 (0%) 0 0/27 (0%) 0 0/114 (0%) 0 0/112 (0%) 0
    Myalgia 0/130 (0%) 0 0/95 (0%) 0 1/384 (0.3%) 1 0/27 (0%) 0 0/114 (0%) 0 0/112 (0%) 0
    Neoplasms benign, malignant and unspecified (incl cysts and polyps)
    Basal cell carcinoma 0/130 (0%) 0 0/95 (0%) 0 0/384 (0%) 0 0/27 (0%) 0 0/114 (0%) 0 1/112 (0.9%) 1
    Pleomorphic adenoma 0/130 (0%) 0 0/95 (0%) 0 1/384 (0.3%) 1 0/27 (0%) 0 0/114 (0%) 0 1/112 (0.9%) 1
    Uteric cancer 0/130 (0%) 0 0/95 (0%) 0 1/384 (0.3%) 1 0/27 (0%) 0 0/114 (0%) 0 0/112 (0%) 0
    Nervous system disorders
    Hypoaesthesia 1/130 (0.8%) 1 0/95 (0%) 0 0/384 (0%) 0 0/27 (0%) 0 0/114 (0%) 0 0/112 (0%) 0
    Lethargy 1/130 (0.8%) 1 0/95 (0%) 0 0/384 (0%) 0 0/27 (0%) 0 0/114 (0%) 0 0/112 (0%) 0
    Myoclonus 0/130 (0%) 0 0/95 (0%) 0 1/384 (0.3%) 1 0/27 (0%) 0 0/114 (0%) 0 0/112 (0%) 0
    Psychiatric disorders
    Affect liability 0/130 (0%) 0 0/95 (0%) 0 0/384 (0%) 0 0/27 (0%) 0 0/114 (0%) 0 1/112 (0.9%) 1
    Renal and urinary disorders
    Renal colic 0/130 (0%) 0 0/95 (0%) 0 0/384 (0%) 0 1/27 (3.7%) 1 0/114 (0%) 0 0/112 (0%) 0
    Respiratory, thoracic and mediastinal disorders
    Asthma 0/130 (0%) 0 0/95 (0%) 0 0/384 (0%) 0 0/27 (0%) 0 0/114 (0%) 0 1/112 (0.9%) 1
    Eosinophilic pneumonia 0/130 (0%) 0 0/95 (0%) 0 0/384 (0%) 0 0/27 (0%) 0 0/114 (0%) 0 1/112 (0.9%) 1
    Vascular disorders
    Hypertension 0/130 (0%) 0 0/95 (0%) 0 1/384 (0.3%) 1 0/27 (0%) 0 0/114 (0%) 0 1/112 (0.9%) 1
    Other (Not Including Serious) Adverse Events
    Cohort 1: Etrolizumab (Open-Label Induction (OLI) Phase) Cohort 2: Placebo (Double-Blind Induction Phase) Cohort 2: Etrolizumab (Double-Blind Induction Phase) Placebo Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Placebo (Maintenance Phase) Etrolizumab Responders: Etrolizumab (Maintenance Phase)
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 38/130 (29.2%) 31/95 (32.6%) 115/384 (29.9%) 20/27 (74.1%) 78/114 (68.4%) 78/112 (69.6%)
    Gastrointestinal disorders
    Abdominal pain 0/130 (0%) 0 0/95 (0%) 0 0/384 (0%) 0 1/27 (3.7%) 1 7/114 (6.1%) 7 10/112 (8.9%) 11
    Colitis ulcerative 9/130 (6.9%) 9 10/95 (10.5%) 10 36/384 (9.4%) 37 11/27 (40.7%) 11 46/114 (40.4%) 52 31/112 (27.7%) 32
    Diarrhoea 0/130 (0%) 0 0/95 (0%) 0 0/384 (0%) 0 1/27 (3.7%) 1 5/114 (4.4%) 5 6/112 (5.4%) 6
    Nausea 0/130 (0%) 0 0/95 (0%) 0 0/384 (0%) 0 2/27 (7.4%) 2 4/114 (3.5%) 7 7/112 (6.3%) 7
    General disorders
    Asthenia 0/130 (0%) 0 0/95 (0%) 0 0/384 (0%) 0 2/27 (7.4%) 3 3/114 (2.6%) 3 5/112 (4.5%) 6
    Fatigue 8/130 (6.2%) 11 1/95 (1.1%) 1 10/384 (2.6%) 13 1/27 (3.7%) 1 4/114 (3.5%) 4 12/112 (10.7%) 13
    Injection site erythema 0/130 (0%) 0 0/95 (0%) 0 0/384 (0%) 0 2/27 (7.4%) 2 2/114 (1.8%) 3 5/112 (4.5%) 9
    Pyrexia 5/130 (3.8%) 7 6/95 (6.3%) 8 3/384 (0.8%) 3 0/27 (0%) 0 0/114 (0%) 0 0/112 (0%) 0
    Infections and infestations
    Gastroenteritis viral 0/130 (0%) 0 0/95 (0%) 0 0/384 (0%) 0 0/27 (0%) 0 1/114 (0.9%) 1 6/112 (5.4%) 6
    Influenza 0/130 (0%) 0 0/95 (0%) 0 0/384 (0%) 0 1/27 (3.7%) 1 9/114 (7.9%) 9 5/112 (4.5%) 5
    Nasopharyngitis 12/130 (9.2%) 12 7/95 (7.4%) 8 33/384 (8.6%) 35 4/27 (14.8%) 5 17/114 (14.9%) 22 23/112 (20.5%) 33
    Oral herpes 0/130 (0%) 0 0/95 (0%) 0 0/384 (0%) 0 2/27 (7.4%) 2 1/114 (0.9%) 1 5/112 (4.5%) 6
    Upper respiratory tract infection 0/130 (0%) 0 0/95 (0%) 0 0/384 (0%) 0 4/27 (14.8%) 5 5/114 (4.4%) 8 5/112 (4.5%) 7
    Musculoskeletal and connective tissue disorders
    Arthralgia 5/130 (3.8%) 6 7/95 (7.4%) 7 33/384 (8.6%) 38 4/27 (14.8%) 6 8/114 (7%) 11 19/112 (17%) 26
    Nervous system disorders
    Dizziness 0/130 (0%) 0 0/95 (0%) 0 0/384 (0%) 0 2/27 (7.4%) 2 1/114 (0.9%) 1 2/112 (1.8%) 2
    Headache 10/130 (7.7%) 11 6/95 (6.3%) 8 22/384 (5.7%) 26 3/27 (11.1%) 3 10/114 (8.8%) 12 10/112 (8.9%) 10
    Psychiatric disorders
    Insomnia 0/130 (0%) 0 0/95 (0%) 0 0/384 (0%) 0 0/27 (0%) 0 2/114 (1.8%) 2 6/112 (5.4%) 8
    Skin and subcutaneous tissue disorders
    Pruritus 0/130 (0%) 0 0/95 (0%) 0 0/384 (0%) 0 0/27 (0%) 0 6/114 (5.3%) 7 4/112 (3.6%) 4
    Rash 0/130 (0%) 0 0/95 (0%) 0 0/384 (0%) 0 1/27 (3.7%) 1 2/114 (1.8%) 2 8/112 (7.1%) 12

    Limitations/Caveats

    [Not Specified]

    More Information

    Certain Agreements

    Principal Investigators are NOT employed by the organization sponsoring the study.

    The Study being conducted under this Agreement is part of the Overall Study. Investigator is free to publish in reputable journals or to present at professional conferences the results of the study but only after the first publication or presentation that involves the Overall Study. The Sponsor may request that Confidential Information be deleted and/or the publication be postponed in order to protect the Sponsor's intellectual property rights.

    Results Point of Contact

    Name/Title Medical Communications
    Organization Hoffmann-La Roche
    Phone 800 821-8590
    Email genentech@druginfo.com
    Responsible Party:
    Hoffmann-La Roche
    ClinicalTrials.gov Identifier:
    NCT02100696
    Other Study ID Numbers:
    • GA28950
    • 2013-004278-88
    First Posted:
    Apr 1, 2014
    Last Update Posted:
    Aug 13, 2021
    Last Verified:
    Jul 1, 2021