Efficacy and Safety of Idelalisib in Combination With Obinutuzumab Compared to Chlorambucil in Combination With Obinutuzumab for Previously Untreated Chronic Lymphocytic Leukemia

Sponsor
Gilead Sciences (Industry)
Overall Status
Terminated
CT.gov ID
NCT01980875
Collaborator
(none)
57
18
3
12.7
3.2
0.2

Study Details

Study Description

Brief Summary

The primary objective of this study is to evaluate the effects of idelalisib with obinutuzumab versus the combination of chlorambucil and obinutuzumab on progression-free survival (PFS) in participants with previously untreated chronic lymphocytic leukemia (CLL).

An increased rate of deaths and serious adverse events (SAEs) among participants with front-line CLL and early-line indolent non-Hodgkin lymphoma (iNHL) treated with idelalisib in combination with standard therapies was observed by the independent data monitoring committee (DMC) during regular review of 3 Gilead Phase 3 studies. Gilead reviewed the unblinded data and terminated those studies in agreement with the DMC recommendation and in consultation with the US Food and Drug Administration (FDA). All front-line studies of idelalisib, including this study, were also terminated.

Condition or Disease Intervention/Treatment Phase
Phase 3

Study Design

Study Type:
Interventional
Actual Enrollment :
57 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Intervention Model Description:
Safety Run-In Phase: Single Group; Randomized Phase: ParallelSafety Run-In Phase: Single Group; Randomized Phase: Parallel
Masking:
None (Open Label)
Primary Purpose:
Treatment
Official Title:
A Phase 3, Randomized, Open-Label Study Evaluating the Efficacy and Safety of Idelalisib in Combination With Obinutuzumab Compared to Chlorambucil in Combination With Obinutuzumab for Previously Untreated Chronic Lymphocytic Leukemia
Actual Study Start Date :
Apr 21, 2015
Actual Primary Completion Date :
May 13, 2016
Actual Study Completion Date :
May 13, 2016

Arms and Interventions

Arm Intervention/Treatment
Experimental: Safety Run-In: Idelalisib+obinutuzumab

Participants will receive idelalisib for 96 weeks and obinutuzumab over 21 weeks. Following 4 weeks of treatment, safety data will be reviewed by an independent data monitoring committee (DMC). If acceptable tolerability is observed, the randomized portion of the study will begin.

Drug: Idelalisib
150 mg tablet administered orally twice daily
Other Names:
  • GS-1101
  • CAL-101
  • Zydelig®
  • Drug: Obinutuzumab
    1000 mg/40 mL single-use vials administered intravenously for a total of 8 doses over 21 weeks

    Experimental: Randomized: Idelalisib+obinutuzumab

    Participants will receive idelalisib for 96 weeks and obinutuzumab over 21 weeks.

    Drug: Idelalisib
    150 mg tablet administered orally twice daily
    Other Names:
  • GS-1101
  • CAL-101
  • Zydelig®
  • Drug: Obinutuzumab
    1000 mg/40 mL single-use vials administered intravenously for a total of 8 doses over 21 weeks

    Active Comparator: Randomized: Obinutuzumab+chlorambucil

    Participants will receive obinutuzumab over 21 weeks and chlorambucil over 23 weeks.

    Drug: Chlorambucil
    2 mg tablets administered at a dose of 0.5 mg/kg orally every other week for a total of 12 doses

    Drug: Obinutuzumab
    1000 mg/40 mL single-use vials administered intravenously for a total of 8 doses over 21 weeks

    Outcome Measures

    Primary Outcome Measures

    1. Progression-Free Survival [Up to 11 months]

      Progression-free survival (PFS) is defined as the interval from randomization to the first documentation of definitive disease progression or death from any cause. Definitive disease progression is CLL progression based on standard criteria, excluding lymphocytosis alone. PFS was to be assessed by an independent review committee (IRC).

    Secondary Outcome Measures

    1. Overall Response Rate [Up to 11 months]

      Overall response rate (ORR) is defined as the proportion of participants who achieve a confirmed complete or partial response. ORR was to be assessed by an IRC.

    2. Nodal Response Rate [Up to 11 months]

      Nodal response rate is defined as the proportion of participants who achieve a 50% decrease from baseline in the sum of the products of the greatest perpendicular diameters of index lesions. Nodal response rate was to be assessed by an IRC.

    3. Complete Response Rate [Up to 11 months]

      Complete response rate is defined as the proportion of participants who achieve a confirmed complete response. Complete response rate was to be assessed by an IRC.

    4. Overall Survival [Up to 11 months]

      Overall survival is defined as the interval from randomization to death from any cause. Overall survival was to be assessed by an IRC.

    5. Minimal Residual Disease Negativity Rate at Week 36 [Up to 11 months]

      Minimal residual disease (MRD) negativity rate is defined as the proportion of participants with MRD < 10^-4 assessed by flow cytometry in bone marrow at Week 36 after therapy initiation. For participants receiving the final dose of obinutuzumab after the original scheduled date, the MRD assessment was performed no less than 12 weeks after the last dose of obinutuzumab. MRD negativity rate was to be assessed by an IRC.

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    18 Years and Older
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    No
    Key Inclusion Criteria:
    • Not a candidate for fludarabine therapy based on either:
    1. creatinine clearance < 70 mL/min, or

    2. Cumulative Illness Rating Scale score > 6, by assessment of the investigator

    • Diagnosis of B-cell CLL, with diagnosis established according to International Workshop on Chronic Lymphocytic Leukemia (IWCLL)

    • No prior therapy for CLL other than corticosteroids for disease complications.

    • CLL that warrants treatment

    • Presence of measurable lymphadenopathy

    • Eastern Cooperative Oncology Group (ECOG) performance status of ≤ 2

    Key Exclusion Criteria:
    • Known histological transformation from CLL to an aggressive lymphoma (ie, Richter transformation)

    • Known presence of myelodysplastic syndrome

    • Evidence of ongoing systemic bacterial, fungal, or viral infection at the time of randomization

    • Ongoing liver injury

    • Ongoing drug-induced pneumonitis

    • Ongoing inflammatory bowel disease

    • History of prior allogeneic bone marrow progenitor cell or solid organ transplantation

    • Ongoing immunosuppressive therapy other than corticosteroids

    • Concurrent participation in another therapeutic clinical trial

    • Undergone major surgery within 30 days prior to randomization

    • Known hypersensitivity or intolerance to any of the active substances or excipients in the formulations for idelalisib, obinutuzumab, or chlorambucil

    • History of non-infectious pneumonitis

    • Received last dose of study drug on another therapeutic clinical trial within 30 days prior to randomization

    Note: Other protocol defined Inclusion/Exclusion criteria may apply.

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 Sansum Clinic Santa Barbara California United States 93105
    2 UCLA Jonsson Comprehensive Cancer Center Santa Monica California United States 90404
    3 Innovative Clinical Research Institute Whittier California United States 90603
    4 Cancer Center of Central Connecticut Southington Connecticut United States 06489
    5 Gabrail Cancer Center Research Canton Ohio United States 44718
    6 Saint Francis Cancer Center Greenville South Carolina United States 29607
    7 St Vincent Hospital, Sydney Darlinghurst New South Wales Australia 2010
    8 UZ Ghent- hematology Ghent Belgium 9000
    9 Royal Victoria Regional Health Centre - Simcoe Musk Barrie Ontario Canada L4M 6M2
    10 Centre Hospitalier du Mans Le Mans France 72037
    11 Centre Hospitalier de Perpignan Perpignan Cedex 9 France 66046-BP 49954
    12 Szpital Specjalistyczny w Brzozowie, Oddzial Hematologii Onkologicznej Brzozow Podkarpackie Poland 36-200
    13 Malopolskie Centrum Medyczne s.c. Krakow Poland 30-510
    14 Wojewódzki Szpital Specjalistyczny w Legnicy Legnica Poland 59-220
    15 Wojewodzki Szpital Specjalistyczny, im. M. Kopernika Klinika Hematologii Uniwersytetu Medycznego Lodz Poland 93-510
    16 Samodzielny Publiczny Zaklad Opieki Zdrowotnej Ministerstwa Spraw Wewnetrznych z Warminsko-Mazurskim Centrum Onkologii w Olsztynie Oddzial Hematologii Olsztyn Poland 10-228
    17 Hospital Universitario de Salamanca Salamanca Spain 37007
    18 East Kent Hospitals University NHS Foundation Trust Canterbury Kent United Kingdom CT1 3NG

    Sponsors and Collaborators

    • Gilead Sciences

    Investigators

    • Study Director: Gilead Study Director, Gilead Sciences

    Study Documents (Full-Text)

    None provided.

    More Information

    Publications

    None provided.
    Responsible Party:
    Gilead Sciences
    ClinicalTrials.gov Identifier:
    NCT01980875
    Other Study ID Numbers:
    • GS-US-312-0118
    • 2013-004551-20
    First Posted:
    Nov 11, 2013
    Last Update Posted:
    Nov 19, 2018
    Last Verified:
    May 1, 2017
    Individual Participant Data (IPD) Sharing Statement:
    Yes
    Plan to Share IPD:
    Yes
    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 Participants were enrolled at study sites in Australia, Europe, and North America. The first participant was screened on 21 April 2015. The last study visit occurred on 13 May 2016.
    Pre-assignment Detail 80 participants were screened.
    Arm/Group Title Safety Run-In: Idelalisib+Obinutuzumab Randomized: Idelalisib+Obinutuzumab Randomized: Obinutuzumab+Chlorambucil
    Arm/Group Description Idelalisib (Zydelig®) 150 mg tablet twice daily + obinutuzumab 1000 mg/40 mL intravenously for a total of 8 doses over 21 weeks Idelalisib 150 mg tablet twice daily + obinutuzumab 1000 mg/40 mL intravenously for a total of 8 doses over 21 weeks Chlorambucil 0.5 mg/kg, as 2 mg tablets every other week for a total of 12 doses + obinutuzumab 1000 mg/40 mL intravenously for a total of 8 doses over 21 weeks
    Period Title: Overall Study
    STARTED 8 25 24
    COMPLETED 0 0 0
    NOT COMPLETED 8 25 24

    Baseline Characteristics

    Arm/Group Title Safety Run-In: Idelalisib+Obinutuzumab Randomized: Idelalisib+Obinutuzumab Randomized: Obinutuzumab+Chlorambucil Total
    Arm/Group Description Idelalisib 150 mg tablet twice daily + obinutuzumab 1000 mg/40 mL intravenously for a total of 8 doses over 21 weeks Idelalisib 150 mg tablet twice daily + obinutuzumab 1000 mg/40 mL intravenously for a total of 8 doses over 21 weeks Chlorambucil 0.5 mg/kg, as 2 mg tablets every other week for a total of 12 doses + obinutuzumab 1000 mg/40 mL intravenously for a total of 8 doses over 21 weeks Total of all reporting groups
    Overall Participants 8 25 24 57
    Age (years) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [years]
    67.1
    (8.10)
    72.2
    (8.23)
    71.1
    (6.84)
    71.1
    (7.70)
    Sex: Female, Male (Count of Participants)
    Female
    3
    37.5%
    8
    32%
    9
    37.5%
    20
    35.1%
    Male
    5
    62.5%
    17
    68%
    15
    62.5%
    37
    64.9%
    Race/Ethnicity, Customized (Count of Participants)
    Black or African American
    1
    12.5%
    0
    0%
    0
    0%
    1
    1.8%
    White
    7
    87.5%
    22
    88%
    21
    87.5%
    50
    87.7%
    Other
    0
    0%
    1
    4%
    0
    0%
    1
    1.8%
    Not Permitted
    0
    0%
    2
    8%
    3
    12.5%
    5
    8.8%
    Region of Enrollment (participants) [Number]
    Canada
    1
    12.5%
    1
    4%
    0
    0%
    2
    3.5%
    Belgium
    0
    0%
    1
    4%
    1
    4.2%
    2
    3.5%
    United States
    5
    62.5%
    3
    12%
    4
    16.7%
    12
    21.1%
    Poland
    2
    25%
    14
    56%
    12
    50%
    28
    49.1%
    United Kingdom
    0
    0%
    1
    4%
    2
    8.3%
    3
    5.3%
    France
    0
    0%
    3
    12%
    2
    8.3%
    5
    8.8%
    Australia
    0
    0%
    1
    4%
    3
    12.5%
    4
    7%
    Spain
    0
    0%
    1
    4%
    0
    0%
    1
    1.8%
    Rai Stage (Count of Participants)
    Stage I-II
    3
    37.5%
    11
    44%
    9
    37.5%
    23
    40.4%
    Stage III-IV
    5
    62.5%
    14
    56%
    15
    62.5%
    34
    59.6%
    IgHV Mutation (Count of Participants)
    Unmutated
    5
    62.5%
    16
    64%
    17
    70.8%
    38
    66.7%
    Mutated
    3
    37.5%
    9
    36%
    7
    29.2%
    19
    33.3%
    17p Deletion in CLL Cells (Count of Participants)
    Present
    0
    0%
    3
    12%
    3
    12.5%
    6
    10.5%
    Absent
    8
    100%
    22
    88%
    21
    87.5%
    51
    89.5%

    Outcome Measures

    1. Primary Outcome
    Title Progression-Free Survival
    Description Progression-free survival (PFS) is defined as the interval from randomization to the first documentation of definitive disease progression or death from any cause. Definitive disease progression is CLL progression based on standard criteria, excluding lymphocytosis alone. PFS was to be assessed by an independent review committee (IRC).
    Time Frame Up to 11 months

    Outcome Measure Data

    Analysis Population Description
    The study was terminated in agreement with the FDA due to urgent safety measures. Complete data were not collected for any participant.
    Arm/Group Title Safety Run-In: Idelalisib+Obinutuzumab Randomized: Idelalisib+Obinutuzumab Randomized: Obinutuzumab+Chlorambucil
    Arm/Group Description Idelalisib 150 mg tablet twice daily + obinutuzumab 1000 mg/40 mL intravenously for a total of 8 doses over 21 weeks Idelalisib 150 mg tablet twice daily + obinutuzumab 1000 mg/40 mL intravenously for a total of 8 doses over 21 weeks Chlorambucil 0.5 mg/kg, as 2 mg tablets every other week for a total of 12 doses + obinutuzumab 1000 mg/40 mL intravenously for a total of 8 doses over 21 weeks
    Measure Participants 0 0 0
    2. Secondary Outcome
    Title Overall Response Rate
    Description Overall response rate (ORR) is defined as the proportion of participants who achieve a confirmed complete or partial response. ORR was to be assessed by an IRC.
    Time Frame Up to 11 months

    Outcome Measure Data

    Analysis Population Description
    The study was terminated in agreement with the FDA due to urgent safety measures. Complete data were not collected for any participant.
    Arm/Group Title Safety Run-In: Idelalisib+Obinutuzumab Randomized: Idelalisib+Obinutuzumab Randomized: Obinutuzumab+Chlorambucil
    Arm/Group Description Idelalisib 150 mg tablet twice daily + obinutuzumab 1000 mg/40 mL intravenously for a total of 8 doses over 21 weeks Idelalisib 150 mg tablet twice daily + obinutuzumab 1000 mg/40 mL intravenously for a total of 8 doses over 21 weeks Chlorambucil 0.5 mg/kg, as 2 mg tablets every other week for a total of 12 doses + obinutuzumab 1000 mg/40 mL intravenously for a total of 8 doses over 21 weeks
    Measure Participants 0 0 0
    3. Secondary Outcome
    Title Nodal Response Rate
    Description Nodal response rate is defined as the proportion of participants who achieve a 50% decrease from baseline in the sum of the products of the greatest perpendicular diameters of index lesions. Nodal response rate was to be assessed by an IRC.
    Time Frame Up to 11 months

    Outcome Measure Data

    Analysis Population Description
    The study was terminated in agreement with the FDA due to urgent safety measures. Complete data were not collected for any participant.
    Arm/Group Title Safety Run-In: Idelalisib+Obinutuzumab Randomized: Idelalisib+Obinutuzumab Randomized: Obinutuzumab+Chlorambucil
    Arm/Group Description Idelalisib 150 mg tablet twice daily + obinutuzumab 1000 mg/40 mL intravenously for a total of 8 doses over 21 weeks Idelalisib 150 mg tablet twice daily + obinutuzumab 1000 mg/40 mL intravenously for a total of 8 doses over 21 weeks Chlorambucil 0.5 mg/kg, as 2 mg tablets every other week for a total of 12 doses + obinutuzumab 1000 mg/40 mL intravenously for a total of 8 doses over 21 weeks
    Measure Participants 0 0 0
    4. Secondary Outcome
    Title Complete Response Rate
    Description Complete response rate is defined as the proportion of participants who achieve a confirmed complete response. Complete response rate was to be assessed by an IRC.
    Time Frame Up to 11 months

    Outcome Measure Data

    Analysis Population Description
    The study was terminated in agreement with the FDA due to urgent safety measures. Complete data were not collected for any participant.
    Arm/Group Title Safety Run-In: Idelalisib+Obinutuzumab Randomized: Idelalisib+Obinutuzumab Randomized: Obinutuzumab+Chlorambucil
    Arm/Group Description Idelalisib 150 mg tablet twice daily + obinutuzumab 1000 mg/40 mL intravenously for a total of 8 doses over 21 weeks Idelalisib 150 mg tablet twice daily + obinutuzumab 1000 mg/40 mL intravenously for a total of 8 doses over 21 weeks Chlorambucil 0.5 mg/kg, as 2 mg tablets every other week for a total of 12 doses + obinutuzumab 1000 mg/40 mL intravenously for a total of 8 doses over 21 weeks
    Measure Participants 0 0 0
    5. Secondary Outcome
    Title Overall Survival
    Description Overall survival is defined as the interval from randomization to death from any cause. Overall survival was to be assessed by an IRC.
    Time Frame Up to 11 months

    Outcome Measure Data

    Analysis Population Description
    The study was terminated in agreement with the FDA due to urgent safety measures. Complete data were not collected for any participant.
    Arm/Group Title Safety Run-In: Idelalisib+Obinutuzumab Randomized: Idelalisib+Obinutuzumab Randomized: Obinutuzumab+Chlorambucil
    Arm/Group Description Idelalisib 150 mg tablet twice daily + obinutuzumab 1000 mg/40 mL intravenously for a total of 8 doses over 21 weeks Idelalisib 150 mg tablet twice daily + obinutuzumab 1000 mg/40 mL intravenously for a total of 8 doses over 21 weeks Chlorambucil 0.5 mg/kg, as 2 mg tablets every other week for a total of 12 doses + obinutuzumab 1000 mg/40 mL intravenously for a total of 8 doses over 21 weeks
    Measure Participants 0 0 0
    6. Secondary Outcome
    Title Minimal Residual Disease Negativity Rate at Week 36
    Description Minimal residual disease (MRD) negativity rate is defined as the proportion of participants with MRD < 10^-4 assessed by flow cytometry in bone marrow at Week 36 after therapy initiation. For participants receiving the final dose of obinutuzumab after the original scheduled date, the MRD assessment was performed no less than 12 weeks after the last dose of obinutuzumab. MRD negativity rate was to be assessed by an IRC.
    Time Frame Up to 11 months

    Outcome Measure Data

    Analysis Population Description
    The study was terminated in agreement with the FDA due to urgent safety measures. Complete data were not collected for any participant.
    Arm/Group Title Safety Run-In: Idelalisib+Obinutuzumab Randomized: Idelalisib+Obinutuzumab Randomized: Obinutuzumab+Chlorambucil
    Arm/Group Description Idelalisib 150 mg tablet twice daily + obinutuzumab 1000 mg/40 mL intravenously for a total of 8 doses over 21 weeks Idelalisib 150 mg tablet twice daily + obinutuzumab 1000 mg/40 mL intravenously for a total of 8 doses over 21 weeks Chlorambucil 0.5 mg/kg, as 2 mg tablets every other week for a total of 12 doses + obinutuzumab 1000 mg/40 mL intravenously for a total of 8 doses over 21 weeks
    Measure Participants 0 0 0

    Adverse Events

    Time Frame Baseline up to the last dose date plus 30 days (maximum: 12 months)
    Adverse Event Reporting Description Safety Analysis Set: participants who received at least 1 dose of study drug, with treatment group designated according to actual treatment received
    Arm/Group Title Safety Run-In: Idelalisib+Obinutuzumab Randomized: Idelalisib+Obinutuzumab Randomized: Obinutuzumab+Chlorambucil
    Arm/Group Description Idelalisib 150 mg tablet twice daily + obinutuzumab 1000 mg/40 mL intravenously for a total of 8 doses over 21 weeks Idelalisib 150 mg tablet twice daily + obinutuzumab 1000 mg/40 mL intravenously for a total of 8 doses over 21 weeks Chlorambucil 0.5 mg/kg, as 2 mg tablets every other week for a total of 12 doses + obinutuzumab 1000 mg/40 mL intravenously for a total of 8 doses over 21 weeks
    All Cause Mortality
    Safety Run-In: Idelalisib+Obinutuzumab Randomized: Idelalisib+Obinutuzumab Randomized: Obinutuzumab+Chlorambucil
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 0/8 (0%) 0/24 (0%) 0/23 (0%)
    Serious Adverse Events
    Safety Run-In: Idelalisib+Obinutuzumab Randomized: Idelalisib+Obinutuzumab Randomized: Obinutuzumab+Chlorambucil
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 2/8 (25%) 12/24 (50%) 8/23 (34.8%)
    Blood and lymphatic system disorders
    Anaemia 0/8 (0%) 2/24 (8.3%) 1/23 (4.3%)
    Febrile neutropenia 0/8 (0%) 1/24 (4.2%) 1/23 (4.3%)
    Gastrointestinal disorders
    Diarrhoea 1/8 (12.5%) 0/24 (0%) 0/23 (0%)
    Enteritis 0/8 (0%) 1/24 (4.2%) 0/23 (0%)
    General disorders
    Chills 0/8 (0%) 1/24 (4.2%) 0/23 (0%)
    Pyrexia 0/8 (0%) 1/24 (4.2%) 0/23 (0%)
    Immune system disorders
    Hypersensitivity 0/8 (0%) 0/24 (0%) 1/23 (4.3%)
    Secondary immunodeficiency 0/8 (0%) 0/24 (0%) 1/23 (4.3%)
    Infections and infestations
    Bronchitis 0/8 (0%) 1/24 (4.2%) 0/23 (0%)
    Gastroenteritis 0/8 (0%) 0/24 (0%) 1/23 (4.3%)
    Herpes zoster 0/8 (0%) 0/24 (0%) 1/23 (4.3%)
    Lung infection 0/8 (0%) 1/24 (4.2%) 0/23 (0%)
    Pneumonia 0/8 (0%) 0/24 (0%) 1/23 (4.3%)
    Pyelonephritis 0/8 (0%) 0/24 (0%) 1/23 (4.3%)
    Sepsis 0/8 (0%) 1/24 (4.2%) 1/23 (4.3%)
    Upper respiratory tract infection 0/8 (0%) 1/24 (4.2%) 0/23 (0%)
    Injury, poisoning and procedural complications
    Infusion related reaction 0/8 (0%) 1/24 (4.2%) 0/23 (0%)
    Metabolism and nutrition disorders
    Tumour lysis syndrome 0/8 (0%) 0/24 (0%) 1/23 (4.3%)
    Neoplasms benign, malignant and unspecified (incl cysts and polyps)
    Richter's syndrome 0/8 (0%) 0/24 (0%) 1/23 (4.3%)
    Nervous system disorders
    Leukoencephalopathy 1/8 (12.5%) 0/24 (0%) 0/23 (0%)
    Respiratory, thoracic and mediastinal disorders
    Acute respiratory failure 0/8 (0%) 1/24 (4.2%) 0/23 (0%)
    Pneumonitis 0/8 (0%) 2/24 (8.3%) 0/23 (0%)
    Skin and subcutaneous tissue disorders
    Rash 0/8 (0%) 1/24 (4.2%) 0/23 (0%)
    Vascular disorders
    Hypertension 0/8 (0%) 0/24 (0%) 1/23 (4.3%)
    Other (Not Including Serious) Adverse Events
    Safety Run-In: Idelalisib+Obinutuzumab Randomized: Idelalisib+Obinutuzumab Randomized: Obinutuzumab+Chlorambucil
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 8/8 (100%) 19/24 (79.2%) 17/23 (73.9%)
    Blood and lymphatic system disorders
    Anaemia 2/8 (25%) 6/24 (25%) 2/23 (8.7%)
    Neutropenia 4/8 (50%) 6/24 (25%) 9/23 (39.1%)
    Thrombocytopenia 3/8 (37.5%) 2/24 (8.3%) 1/23 (4.3%)
    Eye disorders
    Dry eye 1/8 (12.5%) 0/24 (0%) 0/23 (0%)
    Eye swelling 1/8 (12.5%) 0/24 (0%) 0/23 (0%)
    Gastrointestinal disorders
    Abdominal pain 1/8 (12.5%) 1/24 (4.2%) 1/23 (4.3%)
    Autoimmune colitis 1/8 (12.5%) 0/24 (0%) 0/23 (0%)
    Constipation 2/8 (25%) 2/24 (8.3%) 1/23 (4.3%)
    Diarrhoea 4/8 (50%) 4/24 (16.7%) 1/23 (4.3%)
    Flatulence 1/8 (12.5%) 0/24 (0%) 0/23 (0%)
    Nausea 2/8 (25%) 2/24 (8.3%) 4/23 (17.4%)
    Stomatitis 1/8 (12.5%) 0/24 (0%) 0/23 (0%)
    General disorders
    Chills 1/8 (12.5%) 2/24 (8.3%) 0/23 (0%)
    Face oedema 1/8 (12.5%) 0/24 (0%) 0/23 (0%)
    Fatigue 1/8 (12.5%) 3/24 (12.5%) 2/23 (8.7%)
    Influenza like illness 2/8 (25%) 0/24 (0%) 0/23 (0%)
    Oedema peripheral 1/8 (12.5%) 3/24 (12.5%) 1/23 (4.3%)
    Pyrexia 1/8 (12.5%) 1/24 (4.2%) 4/23 (17.4%)
    Infections and infestations
    Acute sinusitis 1/8 (12.5%) 0/24 (0%) 0/23 (0%)
    Clostridium difficile colitis 1/8 (12.5%) 0/24 (0%) 0/23 (0%)
    Lower respiratory tract infection 0/8 (0%) 0/24 (0%) 2/23 (8.7%)
    Pneumonia 0/8 (0%) 2/24 (8.3%) 1/23 (4.3%)
    Upper respiratory tract infection 1/8 (12.5%) 2/24 (8.3%) 2/23 (8.7%)
    Urinary tract infection 1/8 (12.5%) 1/24 (4.2%) 0/23 (0%)
    Injury, poisoning and procedural complications
    Infusion related reaction 2/8 (25%) 3/24 (12.5%) 14/23 (60.9%)
    Muscle strain 1/8 (12.5%) 0/24 (0%) 0/23 (0%)
    Investigations
    Alanine aminotransferase increased 7/8 (87.5%) 5/24 (20.8%) 1/23 (4.3%)
    Aspartate aminotransferase increased 7/8 (87.5%) 5/24 (20.8%) 1/23 (4.3%)
    Blood creatinine increased 0/8 (0%) 2/24 (8.3%) 0/23 (0%)
    Heart rate increased 1/8 (12.5%) 0/24 (0%) 0/23 (0%)
    Metabolism and nutrition disorders
    Diabetes mellitus 1/8 (12.5%) 0/24 (0%) 1/23 (4.3%)
    Hyperglycaemia 1/8 (12.5%) 1/24 (4.2%) 0/23 (0%)
    Hyperuricaemia 0/8 (0%) 3/24 (12.5%) 0/23 (0%)
    Hypocalcaemia 1/8 (12.5%) 0/24 (0%) 0/23 (0%)
    Hypokalaemia 1/8 (12.5%) 2/24 (8.3%) 0/23 (0%)
    Hyponatraemia 1/8 (12.5%) 0/24 (0%) 0/23 (0%)
    Tetany 0/8 (0%) 0/24 (0%) 2/23 (8.7%)
    Tumour lysis syndrome 0/8 (0%) 0/24 (0%) 2/23 (8.7%)
    Musculoskeletal and connective tissue disorders
    Arthralgia 1/8 (12.5%) 2/24 (8.3%) 0/23 (0%)
    Back pain 0/8 (0%) 2/24 (8.3%) 1/23 (4.3%)
    Neck pain 1/8 (12.5%) 0/24 (0%) 0/23 (0%)
    Nervous system disorders
    Cerebellar syndrome 1/8 (12.5%) 0/24 (0%) 0/23 (0%)
    Circadian rhythm sleep disorder 1/8 (12.5%) 0/24 (0%) 0/23 (0%)
    Dementia 1/8 (12.5%) 0/24 (0%) 0/23 (0%)
    Dizziness 1/8 (12.5%) 2/24 (8.3%) 0/23 (0%)
    Dizziness postural 1/8 (12.5%) 0/24 (0%) 0/23 (0%)
    Headache 1/8 (12.5%) 2/24 (8.3%) 2/23 (8.7%)
    Psychomotor skills impaired 1/8 (12.5%) 0/24 (0%) 0/23 (0%)
    Somnolence 1/8 (12.5%) 0/24 (0%) 0/23 (0%)
    Tremor 1/8 (12.5%) 0/24 (0%) 0/23 (0%)
    Psychiatric disorders
    Anxiety 1/8 (12.5%) 0/24 (0%) 1/23 (4.3%)
    Insomnia 2/8 (25%) 2/24 (8.3%) 0/23 (0%)
    Restlessness 2/8 (25%) 0/24 (0%) 0/23 (0%)
    Renal and urinary disorders
    Renal failure 0/8 (0%) 0/24 (0%) 2/23 (8.7%)
    Urinary retention 1/8 (12.5%) 0/24 (0%) 0/23 (0%)
    Reproductive system and breast disorders
    Penile pain 0/8 (0%) 2/24 (8.3%) 0/23 (0%)
    Respiratory, thoracic and mediastinal disorders
    Cough 0/8 (0%) 2/24 (8.3%) 0/23 (0%)
    Dyspnoea 1/8 (12.5%) 0/24 (0%) 0/23 (0%)
    Hypoxia 1/8 (12.5%) 0/24 (0%) 0/23 (0%)
    Skin and subcutaneous tissue disorders
    Ecchymosis 1/8 (12.5%) 0/24 (0%) 0/23 (0%)
    Night sweats 2/8 (25%) 0/24 (0%) 0/23 (0%)
    Rash 1/8 (12.5%) 1/24 (4.2%) 0/23 (0%)
    Rash macular 1/8 (12.5%) 0/24 (0%) 0/23 (0%)
    Vascular disorders
    Flushing 1/8 (12.5%) 0/24 (0%) 1/23 (4.3%)
    Hypertension 0/8 (0%) 2/24 (8.3%) 1/23 (4.3%)
    Orthostatic hypotension 1/8 (12.5%) 0/24 (0%) 0/23 (0%)

    Limitations/Caveats

    The study was terminated in agreement with the FDA due to urgent safety measures. Complete data were not collected for any participant.

    More Information

    Certain Agreements

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

    After conclusion of the study and without prior written approval from Gilead, investigators in this study may communicate, orally present, or publish in scientific journals or other media only after the following conditions have been met: The results of the study in their entirety have been publicly disclosed by or with the consent of Gilead in an abstract, manuscript, or presentation form; or The study has been completed at all study sites for at least 2 years

    Results Point of Contact

    Name/Title Clinical Trial Disclosures
    Organization Gilead Sciences
    Phone
    Email ClinicalTrialDisclosures@gilead.com
    Responsible Party:
    Gilead Sciences
    ClinicalTrials.gov Identifier:
    NCT01980875
    Other Study ID Numbers:
    • GS-US-312-0118
    • 2013-004551-20
    First Posted:
    Nov 11, 2013
    Last Update Posted:
    Nov 19, 2018
    Last Verified:
    May 1, 2017