A Study Evaluating Trastuzumab Emtansine Plus Pertuzumab Compared With Chemotherapy Plus Trastuzumab and Pertuzumab for Participants With Human Epidermal Growth Factor Receptor 2 (HER2)-Positive Breast Cancer

Sponsor
Hoffmann-La Roche (Industry)
Overall Status
Completed
CT.gov ID
NCT02131064
Collaborator
(none)
444
79
2
47.1
5.6
0.1

Study Details

Study Description

Brief Summary

This is a randomized, multicenter, open-label, two-arm study in treatment-naive participants with operable, locally advanced, or inflammatory, centrally-assessed HER2-positive early breast cancer (EBC) whose primary tumors were greater than or equal to (>/=) 2 centimeters (cm). The study was designed to evaluate the efficacy and safety of trastuzumab emtansine + pertuzumab (experimental arm; T-DM1 + P) versus chemotherapy, trastuzumab + pertuzumab (control arm; TCH + P). The study comprised a neoadjuvant treatment period, followed by surgery, and an adjuvant treatment period.

Treatment can be stopped due to disease recurrence, unacceptable toxicity, withdrawal of consent, or study termination.

Condition or Disease Intervention/Treatment Phase
Phase 3

Study Design

Study Type:
Interventional
Actual Enrollment :
444 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
None (Open Label)
Primary Purpose:
Treatment
Official Title:
A Randomized, Multicenter, Open-Label, Two-Arm, Phase III Neoadjuvant Study Evaluating Trastuzumab Emtansine Plus Pertuzumab Compared With Chemotherapy Plus Trastuzumab and Pertuzumab for Patients With HER2-Positive Breast Cancer
Actual Study Start Date :
Jun 25, 2014
Actual Primary Completion Date :
Dec 31, 2015
Actual Study Completion Date :
May 29, 2018

Arms and Interventions

Arm Intervention/Treatment
Active Comparator: Trastuzumab (TCH) + Pertuzumab

Participants will receive pertuzumab 840 milligrams (mg) (loading dose) and 420 mg (maintenance dose) intravenous (IV) infusion followed by trastuzumab 8 milligrams per kilogram (mg/kg) (loading dose) and 6 mg/kg (maintenance dose) IV infusion followed by docetaxel 75 milligrams per square meter (mg/m^2) IV infusion and carboplatin at a dose to achieve an area under the curve (AUC) of 6 milligrams per milliliter* minute (mg/mL*min) IV infusion every 3 weeks (q3w) for 6 cycles in neoadjuvant period. Participants will receive pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab 8 mg/kg (loading dose) and 6 mg/kg (maintenance dose) IV infusion q3w for rest of the cycles (12 cycles) in adjuvant period (up to a total of 18 cycles).

Drug: Carboplatin
Carboplatin IV infusion at a dose to achieve an AUC of 6 mg*min/mL q3w

Drug: Docetaxel
Docetaxel 75 mg/m^2 IV infusion q3w

Drug: Pertuzumab
Pertuzumab 840 mg (loading dose); and 420 mg (maintenance dose) IV infusion q3w
Other Names:
  • Perjeta®, RO4368451
  • Drug: Trastuzumab
    Trastuzumab 8 mg/kg (loading dose); and 6 mg/kg (maintenance dose) IV infusion q3w
    Other Names:
  • Herceptin®
  • Experimental: Trastuzumab Emtansine (T-DM1) + Pertuzumab

    Participants will receive pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab emtansine 3.6 mg/kg IV infusion q3w for a total of 18 cycles (6 cycles of neoadjuvant period and 12 cycles of adjuvant period).

    Drug: Pertuzumab
    Pertuzumab 840 mg (loading dose); and 420 mg (maintenance dose) IV infusion q3w
    Other Names:
  • Perjeta®, RO4368451
  • Drug: Trastuzumab Emtansine
    Trastuzumab Emtansine 3.6 mg/kg IV infusion q3w
    Other Names:
  • Kadcyla®, RO5304020
  • Outcome Measures

    Primary Outcome Measures

    1. Percentage of Participants With Total Pathological Complete Response (tpCR) Assessed Based on Tumor Samples [Pre-surgery (within 6 weeks after neoadjuvant therapy; up to approximately 6 months)]

      tpCR was assessed by local pathology review on samples taken at surgery following completion of neoadjuvant therapy. tpCR was defined as the absence of any residual invasive cancer on hematoxylin and eosin evaluation of the resected breast specimen and all sampled ipsilateral lymph nodes ( that is [i.e.], ypT0/is, ypN0 in the American Joint Committee on Cancer [AJCC] staging system, 7th edition). Percentage of participants with tpCR was reported.

    Secondary Outcome Measures

    1. Overall Survival [From randomization until death (up to approximately 47 months)]

      Overall survival in the overall study population was defined as the time from the date of randomization to the date of death from any cause. 3 years OS event-free rate per randomized treatment arms in the ITT population were estimated using the Kaplan-Meier method and estimated the probability of a patient being event-free after 3 years after treatment.

    2. Percentage of Participants Who Received Breast-Conserving Surgery (BCS) [Surgery performed after completion of neoadjuvant therapy (approximately 6 months after neoadjuvant period)]

      BCS rate was defined as the percentage of participants who achieve BCS out of the ITT population of participants without inflammatory breast cancer.

    3. Event-Free Survival [From randomization up to disease progression or recurrence or death (up to approximately 47 months)]

      Event-free survival (EFS) is defined as the time from randomization to disease progression or disease recurrence (local, regional, distant, or contralateral, invasive or non-invasive), or death from any cause. 3 years EFS rate per randomized treatment arms in the ITT population were estimated using the Kaplan-Meier method and estimated the probability of a patient being event-free after 3 years after treatment.

    4. Invasive Disease-free Survival (IDFS) [From surgery to the first documented occurrence of IDFC event (up to approximately 47 months)]

      IDFS is defined only for participants who undergo surgery. IDFS is defined as the time from surgery to the first documented occurrence of an IDFS event, defined as: Ipsilateral invasive breast tumor recurrence; Ipsilateral local-regional invasive breast cancer recurrence; Distant recurrence; Contralateral invasive breast cancer; and death from any cause. 3 years of IDFS event-free rate per randomized treatment arms in the ITT population were estimated using the Kaplan-Meier method and estimated the probability of a patient being event-free after 3 years after treatment.

    5. Percentage of Participants by Response for Neuropathy Single Item [Baseline,Cycle(C) 3,C5 of neoadjuvant period (each C=21 days); pre-surgery visit (within 6weeks after neoadjuvant therapy; up to approx 6months), C4 & 8 of Adjuvant Period (each C=21 days), End of Treatment, Follow up 2 & 4 (approx 47 months)]

      Participants answered the question "Did you have tingling hands/feet?", from the Modified Quality of Life Questionnaire Breast Cancer 23 (mQLQ-BR23), on a 5-point scale (1 'Not at all', 2 'A little', 3 'Somewhat', 4 'Quite a bit', 5 'Very much'). Percentage of participants by each response was reported.

    6. Percentage of Participants by Response for Skin Problem Single Items [Baseline,Cycle(C) 3,C5 of neoadjuvant period (each C=21 days); pre-surgery visit (within 6weeks after neoadjuvant therapy; up to approx 6months), C4 & 8 of Adjuvant Period (each C=21 days), End of Treatment, Follow up 2 & 4 (approx 47 months)]

      Participants answered the Question 1 "Did itching skin bother you?" and Question 2 "Have you had skin problems?", from the mQLQ-BR23, on a 5-point scale (1 'Not at all', 2 'A little', 3 'Somewhat', 4 'Quite a bit', 5 'Very much'). Percentage of participants by each response was reported.

    7. Percentage of Participants With a Clinically Meaningful Deterioration in Global Health Status (GHS)/Quality of Life (QoL) Score [From Baseline (Day 1 Cycle 1) to Cycle 6 (each cycle = 21 days) in neoadjuvant period]

      Participants rated their quality of life (global health status) on European Organization for the Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire-Core 30 (QLQ- C30), with total scores ranging from 0 (worst) to 100 (best); where higher score indicates better quality of life. Clinically meaningful deterioration in GHS/QoL was defined as a decrease in score of 10 points in GHS/QoL.

    8. Time to Clinically Meaningful Deterioration in GHS/QoL Score [From Baseline (Day 1 Cycle 1) to Cycle 6 (each cycle = 21 days) in neoadjuvant period]

      Participants rated their quality of life (global health status) on EORTC QLQ C-30, with total scores ranging from 0 (worst) to 100 (best); where higher score indicates better quality of life. Time to deterioration was defined as the time from baseline to first 10-point (or greater) decrease as measured by GHS/QoL. All valid GHS/QoL questionnaires of the neoadjuvant phase including surgery were used. Participants without deterioration were censored at the time of completing the last GHS/QoL plus 1 day. Median time to deterioration was estimated with Kaplan-Meier method. The 95% confidence interval (CI) for the median was computed using the method of Brookmeyer and Crowley.

    9. Time to Clinically Meaningful Deterioration in Function Subscale [From Baseline (Day 1 Cycle 1) to Cycle 6 (each cycle = 21 days) in neoadjuvant period]

      Participants rated their function on EORTC QLQ C-30, with total scores ranging from 0 (worst) to 100 (best); where higher score indicates better functioning. Time to deterioration was defined as the time from baseline to first 10-point (or greater) decrease as measured by physical function; to first 14-point (or greater) decrease as measured by role function, to first 7-point (or greater) decrease as measured by cognitive function. Median time to deterioration was estimated with Kaplan-Meier method. The 95% CI for the median was computed using the method of Brookmeyer and Crowley.

    10. Maximum Observed Serum Concentration (Cmax) of Trastuzumab [15-30 minutes (min) post-study treatment infusion (infusion duration = 90 min) on Day 1 of Cycle 1 and 6 (each cycle = 21 days) in neoadjuvant and adjuvant period]

      Only participants who received trastuzumab were to be analyzed for this outcome.

    11. Cmax of Trastuzumab Emtansine and Total Trastuzumab [15-30 min post-study treatment infusion (infusion duration = 90 min) on Day 1 of Cycle 1 and 6 (each cycle = 21 days) in neoadjuvant and adjuvant period.]

      Only participants who received trastuzumab emtansine were to be analyzed for this outcome.

    12. Minimum Observed Serum Concentration (Cmin) of Trastuzumab [Pre-study treatment infusion (0 hours [hr]) (infusion duration = 90 min) on Day 1 of Cycle 6 (cycle length = 21 days) in neoadjuvant and adjuvant period]

      Only participants who received trastuzumab were to be analyzed for this outcome.

    13. Cmin of Trastuzumab Emtansine and Total Trastuzumab [Pre-study treatment infusion (0 hr) (infusion duration = 90 min) on Day 1 of Cycle 6 (cycle length = 21 days) in neoadjuvant and adjuvant period]

      Only participants who received trastuzumab emtansine were to be analyzed for this outcome.

    14. Plasma N2'-Deacetyl-N2'-(3-mercapto-1-oxopropyl)-Maytansine (DM1) Concentrations [15-30 min post-study treatment infusion (Cmax) on Day 1 of Cycle 1 and 6 in neoadjuvant and adjuvant period]

      DM1 is the metabolite of trastuzumab emtansine. Only participants who received trastuzumab emtansine were to be analyzed for this outcome.

    15. Serum Levels of Plasma DM1-Containing Catabolites Concentrations (in ng/mL) (Nonreducible Thioether Linker [MCC]-DM1 and Lysine [Lys]-MCC-DM1) [15-30 min post-study treatment infusion (Cmax) on Day 1 of Cycle 1 and 6 in neoadjuvant and adjuvant period]

    16. Percentage of Participants With ATA to Trastuzumab [Baseline (Pre-trastuzumab [0 hr] infusion [infusion duration = 90 min] on Day 1 of Cycle 1); post-baseline (Pre-trastuzumab infusion [0 hr] on Day 1 of Cycle 6) (each cycle = 21 days) in neoadjuvant and adjuvant period]

    17. Percentage of Participants by Response for Hair Loss Single Item [Baseline,Cycle(C) 3, C5 of neoadjuvant period (each C=21 days); pre-surgery visit (within 6weeks after neoadjuvant therapy; up to approx 6months), C4 & 8 of Adjuvant Period (each C=21 days), End of Treatment, Follow up 2 & 4(approx 47 months)]

      Participants answered the Question "Have you lost any hair?", from the mQLQ-BR23, on a 5-point scale (1 'Not at all', 2 'A little', 3 'Somewhat', 4 'Quite a bit', 5 'Very much'). Percentage of participants by each response was reported.

    18. Percentage of Participants With Selected Adverse Events (AEs) [Baseline to end of study (approximately 47 months)]

      Selected AEs included hepatotoxicity, pulmonary toxicity, cardiac dysfunction, neutropenia, thrombocytopenia, peripheral neuropathy, hemorrhage, infusion related reaction (IRR)/hypersensitivity, IRR/Hypersensitivity symptoms, rash, diarrhea and mucositis. An AE was defined as any untoward medical occurrence in a clinical investigation participant administered a pharmaceutical product, regardless of causal attribution.

    19. Percentage of Participants With a Clinically Meaningful Deterioration in Function Subscales [From Baseline (Day 1 Cycle 1) to Cycle 6 (each cycle = 21 days) in neoadjuvant period]

      Participants rated their function on EORTC QLQ C-30, with total score and single-item (physical, cognitive and role functioning) scores ranging from 0 (worst) to 100 (best); where higher score indicates better functioning. Clinically meaningful deterioration was defined as a decrease in score of 10 points in physical function; decrease of 7 points in cognitive function and decrease of 14 points in role function.

    20. Percentage of Participants With Anti-Therapeutic Antibodies (ATA) to TDM-1 [Baseline (b) (Pre-TDM1 [0 hr] infusion [infusion duration = 90 min] on Day 1 of Cycle 1); post-baseline (pb) (Pre-TDM1 infusion [0 hr] on Day 1 of Cycle 6) (each cycle = 21 days) in neoadjuvant and adjuvant period]

      Participants were considered post-baseline ATA positive if they had ATAs post-baseline that were either treatment-induced or treatment-enhanced. Participants had treatment-induced ATAs if they had a negative or missing ATA result at baseline, and at least one positive ATA result post-baseline. Participants had treatment-enhanced ATAs if they had a positive ATA result at baseline, and at least one positive ATA result post-baseline that was greater than or equal to (>/=) 0.60 titer units higher than the result at baseline.

    21. Percentage of Participants With a Clinically Meaningful Increase in Symptom Subscales [From Baseline (Day 1 Cycle 1) to Cycle 6 (each cycle = 21 days) in neoadjuvant period]

      Participants rated their symptoms on EORTC QLQ C-30 and mQLQ-BR23, with total scores ranging from 0 (worst) to 100 (best); where higher score indicates greater degree of symptoms. Clinically meaningful increase in symptoms was defined as an increase in score (deterioration) of 11 points in nausea and vomiting, pain, dyspnea; increase of 9 points in insomnia; increase of 14 points in appetite loss; increase of 15 points in diarrhea, constipation; increase of 10 points in fatigue, systemic therapy side effects, hair loss.

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    18 Years and Older
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    No
    Inclusion Criteria:
    • Histologically confirmed invasive breast cancer with a primary tumor size of greater than (>) 2 cm

    • HER2-positive breast cancer

    • Participants with multifocal tumors (more than one tumor confined to the same quadrant as the primary tumor) are eligible provided all discrete lesions are sampled and centrally confirmed as HER2 positive

    • Stage at presentation: cT2-cT4, cN0-cN3, cM0, according to American Joint Committee on Cancer (AJCC) staging system

    • Known hormone receptor status of the primary tumor

    • Participant agreement to undergo mastectomy or breast-conserving surgery after neoadjuvant therapy

    • Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1

    • Baseline Left Ventricular Ejection Fraction (LVEF) >/= 55 percent (%) measured by echocardiogram (ECHO) or multiple-gated acquisition (MUGA)

    • Effective contraception as defined by protocol

    Exclusion Criteria:
    • Stage IV (metastatic) breast cancer

    • Participants who have received prior anti-cancer therapy for breast cancer except those participants with a history of breast lobular carcinoma in situ (LCIS) that was surgically managed or ductal carcinoma in situ (DCIS) treated exclusively with mastectomy. In case of prior history of LCIS/DCIS, >5 years must have passed from surgery until diagnosis of current breast cancer

    • Participants with multicentric (multiple tumors involving more than 1 quadrant) or bilateral breast cancer

    • Participants who have undergone incisional and/or excisional biopsy of primary tumor and/or axillary lymph nodes

    • Axillary lymph node dissection or positive sentinel lymph node prior to start of neoadjuvant therapy

    • History of concurrent or previously non-breast malignancies except for appropriately treated (1) non-melanoma skin cancer and (2) in situ carcinomas, including cervix, colon, and skin. A participant with previous invasive non-breast cancer is eligible provided he/she has been disease-free >/= 5 years

    • Treatment with any investigational drug within 28 days prior to randomization

    • Current National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) version (v) 4.0

    • Any significant concurrent medical or surgical conditions or findings that would jeopardize the participant's safety or ability to complete the study

    • Current pregnancy or breastfeeding

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 St. Jude Heritage Healthcare; Virgiia K.Crosson Can Ctr Fullerton California United States 92835
    2 Cancer Care Assoc Med Group Los Angeles California United States 90095-1772
    3 Coastal Integrative Cancer Care San Luis Obispo California United States 93401
    4 Central Coast Medical Oncology Santa Maria California United States 93454
    5 UCLA Hematology/Oncology Santa Monica California United States 90404
    6 Memorial Cancer Institute Hollywood Florida United States 33021
    7 Md Anderson Cancer Center Orlando Orlando Florida United States 32806
    8 New England Cancer Specialists Scarborough Maine United States 04074
    9 Comprehensive Cancer Centers of Nevada - Henderson Henderson Nevada United States 89052
    10 Montefiore Medical Center Bronx New York United States 10467
    11 ProHEALTH Care Associates LLP Lake Success New York United States 11042
    12 Hope A Women's Cancer Center Asheville North Carolina United States 28806
    13 Levine Cancer Institute Charlotte North Carolina United States 28204
    14 Roper Bon Secours St. Francis Cancer Center Charleston South Carolina United States 29414
    15 Sarah Cannon Research Institute Nashville Tennessee United States 37203
    16 MD Anderson Cancer Center Houston Texas United States 77030
    17 UZ Antwerpen Edegem Belgium 2650
    18 UZ Leuven Gasthuisberg Leuven Belgium 3000
    19 Clinique Saint-Joseph Liège Belgium 4000
    20 Clinique Ste-Elisabeth, Pharmacie Namur Belgium 5000
    21 Sint Augustinus Wilrijk Wilrijk Belgium 2610
    22 Cross Cancer Institute ; Dept of Medical Oncology Edmonton Alberta Canada T6G 1Z2
    23 Sunnybrook Health Sciences Centre Toronto Ontario Canada M4N 3M5
    24 St. Michael'S Hospital Toronto Ontario Canada M5B 1W8
    25 Chum Hospital Notre Dame Montreal Quebec Canada H2L 4M1
    26 McGill University; Sir Mortimer B Davis Jewish General Hospital; Oncology Montreal Quebec Canada H3T 1E2
    27 CHU de Québec - Hôpital du Saint-Sacrement / ONCOLOGY Quebec Canada G1S 4L8
    28 Ico - Paul Papin Angers France 49000
    29 HOPITAL JEAN MINJOZ; Oncologie Besancon France 25030
    30 Hopital Morvan Brest France 29200
    31 CHD Les Oudairies La Roche Sur Yon France 85925
    32 Centre Oscar Lambret Lille France 59020
    33 Institut Paoli Calmettes Marseille France 13009
    34 Centre Catherine De Sienne Nantes France 44202
    35 Centre Rene Gauducheau Saint Herblain France 44805
    36 Nouvel Hopital Civil - CHU Strasbourg Strasbourg France 67091
    37 Klinikum Sindelfingen-Böblingen; Frauenklinik Böblingen Germany 71032
    38 Luisenkrankenhaus GmbH, Brustzentrum Düsseldorf Germany 40235
    39 Universitätsklinikum Erlangen; Frauenklinik Erlangen Germany 91054
    40 Universitätsklinikum Mainz Mainz Germany 55131
    41 Interdisziplinäres Onkologisches Zentrum München Germany 80336
    42 National Cancer Center Gyeonggi-do Korea, Republic of 10408
    43 Seoul National University Bundang Hospital Gyeonggi-do Korea, Republic of 13620
    44 Seoul National University Hospital Seoul Korea, Republic of 03080
    45 Severance Hospital Seoul Korea, Republic of 03722
    46 Asan Medical Center - Oncology Seoul Korea, Republic of 05505
    47 Samsung Medical Center Seoul Korea, Republic of 6351
    48 Moscow City Oncology Hospital #62 Moscovskaya Oblast Moskovskaja Oblast Russian Federation 143423
    49 Regional Oncology Hospital Of Kursk; Chemotherapy Kislino, Kursk Region Russian Federation 305524
    50 S.I. Russian Oncological Research Center n.a. N.N. Blokhin Moscow Russian Federation 115478
    51 State Inst. Of Healthcare Orenburg Regional Clinical Oncology Dis Orenburg Russian Federation 460021
    52 Railway Clinical Hospital on Saratov - 2 Station Oao "Rzhd" Saratov Russian Federation 410004
    53 Saint-Petersburg City Clinical Oncology Dispensary St Petersburg Russian Federation 197022
    54 Corporacio Sanitaria Parc Tauli; Servicio de Oncologia Sabadell Barcelona Spain 08208
    55 IInstituto Oncologico de San Sebastian, Oncologikoa; Servicio de Oncologia San Sebastian Guipuzcoa Spain 20014
    56 Hospital Universitari de Lleida Arnau de Vilanova Lleida Lerida Spain 25198
    57 Hospital Nuestra Señora de Sonsoles; servicio de Oncologia Avila Spain 05071
    58 Hospital del Mar; Servicio de Oncologia Barcelona Spain 08003
    59 Fundacio Santa Creu I Sant Pau Barcelona Spain 08006
    60 Complejo Hospitalario de Jaen Jaen Spain 23007
    61 Complejo Hospitalario Universitario A Coruña (CHUAC, Materno Infantil), Oncología La Coruña Spain 15006
    62 Hospital General Universitario Gregorio Marañon; Servicio de Oncologia Madrid Spain 28007
    63 Hospital Universitario Clínico San Carlos; Servicio de Oncologia Madrid Spain 28040
    64 Centro Integral Oncologico Clara Campal (CIOCC); Dirección Médica Madrid Spain 28050
    65 Hospital Quiron de Madrid; Servicio de Oncologia Madrid Spain 28223
    66 Hospital Universitario Virgen de la Victoria Malaga Spain 29010
    67 Hospital Universitario Virgen del Rocio Sevilla Spain 41013
    68 Hospital Clinico Universitario de Valencia Valencia Spain 46010
    69 Hospital Universitario Miguel Servet; Servicio Oncologia Zaragoza Spain 50009
    70 Kaohsiung Medical Uni Chung-Ho Hospital; Dept of Surgery Kaohsiung Taiwan 807
    71 National Taiwan Uni Hospital Taipei City Taiwan 10041
    72 Taipei Veterans General Hospital Taipei City Taiwan 112
    73 Mackay Memorial Hospital; Dept of Surgery Taipei Taiwan 104
    74 Koo Foundation Sun Yat-Sen Cancer Center; Hemato-Oncology Taipei Taiwan 112
    75 Tri-Service General Hospital Taipei Taiwan 11490
    76 Cherkassy Regional Oncological Hospital Cherkassy Ukraine 18009
    77 State Medical Academy; Oncology Dnipropetrovsk Ukraine 43102
    78 Karkiv Regional Oncology Center Kharkiv Ukraine 61070
    79 Lvov State Regional Center Lvov Ukraine 79031

    Sponsors and Collaborators

    • Hoffmann-La Roche

    Investigators

    • Study Director: Clinical Trials, Hoffmann-La Roche

    Study Documents (Full-Text)

    None provided.

    More Information

    Publications

    None provided.
    Responsible Party:
    Hoffmann-La Roche
    ClinicalTrials.gov Identifier:
    NCT02131064
    Other Study ID Numbers:
    • BO28408
    • TRIO021
    • 2012-004879-38
    First Posted:
    May 6, 2014
    Last Update Posted:
    Jul 2, 2019
    Last Verified:
    Jun 1, 2019

    Study Results

    Participant Flow

    Recruitment Details
    Pre-assignment Detail A total of 574 participants were screened at 65 sites in 10 countries, of which 444 participants were randomized in two arms: Trastuzumab (TCH) + Pertuzumab (P) (Arm A) and Trastuzumab Emtansine (TDM1) + P (Arm B)
    Arm/Group Title TCH + P T-DM1 + P
    Arm/Group Description Participants received pertuzumab 840 milligrams (mg) (loading dose) and 420 mg (maintenance dose) intravenous (IV) infusion, trastuzumab 8 milligrams per kilogram (mg/kg) (loading dose) and 6 mg/kg (maintenance dose) IV infusion, docetaxel 75 milligrams per square meter (mg/m^2) IV infusion and carboplatin at a dose to achieve an area under the curve (AUC) of 6 milligrams per milliliter* minute (mg/mL*min) IV infusion every 3 weeks (q3w) for 6 cycles in neoadjuvant period. Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab 8 mg/kg (loading dose) and 6 mg/kg (maintenance dose) IV infusion q3w for rest of the cycles (12 cycles) in adjuvant period (up to a total of 18 cycles). Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab emtansine 3.6 mg/kg IV infusion q3w for a total of 18 cycles (6 cycles of neoadjuvant period and 12 cycles of adjuvant period).
    Period Title: Overall Study
    STARTED 221 223
    COMPLETED 196 189
    NOT COMPLETED 25 34

    Baseline Characteristics

    Arm/Group Title TCH + P T-DM1 + P Total
    Arm/Group Description Participants received pertuzumab 840 milligrams (mg) (loading dose) and 420 mg (maintenance dose) intravenous (IV) infusion, trastuzumab 8 milligrams per kilogram (mg/kg) (loading dose) and 6 mg/kg (maintenance dose) IV infusion, docetaxel 75 milligrams per square meter (mg/m^2) IV infusion and carboplatin at a dose to achieve an area under the curve (AUC) of 6 milligrams per milliliter* minute (mg/mL*min) IV infusion every 3 weeks (q3w) for 6 cycles in neoadjuvant period. Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab 8 mg/kg (loading dose) and 6 mg/kg (maintenance dose) IV infusion q3w for rest of the cycles (12 cycles) in adjuvant period (up to a total of 18 cycles). Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab emtansine 3.6 mg/kg IV infusion q3w for a total of 18 cycles (6 cycles of neoadjuvant period and 12 cycles of adjuvant period). Total of all reporting groups
    Overall Participants 221 223 444
    Age (years) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [years]
    49.3
    (11.2)
    50.5
    (10.6)
    49.9
    (10.9)
    Sex: Female, Male (Count of Participants)
    Female
    221
    100%
    222
    99.6%
    443
    99.8%
    Male
    0
    0%
    1
    0.4%
    1
    0.2%

    Outcome Measures

    1. Primary Outcome
    Title Percentage of Participants With Total Pathological Complete Response (tpCR) Assessed Based on Tumor Samples
    Description tpCR was assessed by local pathology review on samples taken at surgery following completion of neoadjuvant therapy. tpCR was defined as the absence of any residual invasive cancer on hematoxylin and eosin evaluation of the resected breast specimen and all sampled ipsilateral lymph nodes ( that is [i.e.], ypT0/is, ypN0 in the American Joint Committee on Cancer [AJCC] staging system, 7th edition). Percentage of participants with tpCR was reported.
    Time Frame Pre-surgery (within 6 weeks after neoadjuvant therapy; up to approximately 6 months)

    Outcome Measure Data

    Analysis Population Description
    The Intent-to-treat (ITT) Population comprised all randomized patients, whether or not they received any study treatment or completed a full course of study treatment. Patients were analyzed according to their randomized treatment.
    Arm/Group Title TCH + P T-DM1 + P
    Arm/Group Description Participants received pertuzumab 840 milligrams (mg) (loading dose) and 420 mg (maintenance dose) intravenous (IV) infusion, trastuzumab 8 milligrams per kilogram (mg/kg) (loading dose) and 6 mg/kg (maintenance dose) IV infusion, docetaxel 75 milligrams per square meter (mg/m^2) IV infusion and carboplatin at a dose to achieve an area under the curve (AUC) of 6 milligrams per milliliter* minute (mg/mL*min) IV infusion every 3 weeks (q3w) for 6 cycles in neoadjuvant period. Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab 8 mg/kg (loading dose) and 6 mg/kg (maintenance dose) IV infusion q3w for rest of the cycles (12 cycles) in adjuvant period (up to a total of 18 cycles). Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab emtansine 3.6 mg/kg IV infusion q3w for a total of 18 cycles (6 cycles of neoadjuvant period and 12 cycles of adjuvant period).
    Measure Participants 221 223
    Number (95% Confidence Interval) [Percentage of Participants]
    56.1
    25.4%
    44.4
    19.9%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection TCH + P, T-DM1 + P
    Comments 95% CI for the difference in tPCR rates between treatment arms was calculated using normal approximation.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.0126
    Comments Threshold for significance at 5%
    Method Cochran-Mantel-Haenszel Chi-Square
    Comments The Cochran-Mantel-Haenszel Chi-square test was used and stratified by local hormone receptor status and clinical stage at presentation.
    Method of Estimation Estimation Parameter Difference in tpCR rate
    Estimated Value -11.71
    Confidence Interval (2-Sided) 95%
    -20.95 to -2.48
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    2. Secondary Outcome
    Title Overall Survival
    Description Overall survival in the overall study population was defined as the time from the date of randomization to the date of death from any cause. 3 years OS event-free rate per randomized treatment arms in the ITT population were estimated using the Kaplan-Meier method and estimated the probability of a patient being event-free after 3 years after treatment.
    Time Frame From randomization until death (up to approximately 47 months)

    Outcome Measure Data

    Analysis Population Description
    The ITT Population comprised all randomized patients, whether or not they received any study treatment or completed a full course of study treatment. Patients were analyzed according to their randomized treatment.
    Arm/Group Title TCH + P T-DM1 + P
    Arm/Group Description Participants received pertuzumab 840 milligrams (mg) (loading dose) and 420 mg (maintenance dose) intravenous (IV) infusion, trastuzumab 8 milligrams per kilogram (mg/kg) (loading dose) and 6 mg/kg (maintenance dose) IV infusion, docetaxel 75 milligrams per square meter (mg/m^2) IV infusion and carboplatin at a dose to achieve an area under the curve (AUC) of 6 milligrams per milliliter* minute (mg/mL*min) IV infusion every 3 weeks (q3w) for 6 cycles in neoadjuvant period. Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab 8 mg/kg (loading dose) and 6 mg/kg (maintenance dose) IV infusion q3w for rest of the cycles (12 cycles) in adjuvant period (up to a total of 18 cycles). Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab emtansine 3.6 mg/kg IV infusion q3w for a total of 18 cycles (6 cycles of neoadjuvant period and 12 cycles of adjuvant period).
    Measure Participants 221 223
    Number (95% Confidence Interval) [Probability]
    97.6
    97.0
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection TCH + P, T-DM1 + P
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.7557
    Comments
    Method Cochran-Mantel-Haenszel Chi-Square Test
    Comments The Cochran-Mantel-Haenszel Chi-square test was used and stratified by local hormone receptor status and clinical stage at presentation.
    Method of Estimation Estimation Parameter Hazard Ratio (HR)
    Estimated Value 1.21
    Confidence Interval (2-Sided) 95%
    0.37 to 3.96
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    3. Secondary Outcome
    Title Percentage of Participants Who Received Breast-Conserving Surgery (BCS)
    Description BCS rate was defined as the percentage of participants who achieve BCS out of the ITT population of participants without inflammatory breast cancer.
    Time Frame Surgery performed after completion of neoadjuvant therapy (approximately 6 months after neoadjuvant period)

    Outcome Measure Data

    Analysis Population Description
    [Not Specified]
    Arm/Group Title TCH + P T-DM1 + P
    Arm/Group Description Participants received pertuzumab 840 milligrams (mg) (loading dose) and 420 mg (maintenance dose) intravenous (IV) infusion, trastuzumab 8 milligrams per kilogram (mg/kg) (loading dose) and 6 mg/kg (maintenance dose) IV infusion, docetaxel 75 milligrams per square meter (mg/m^2) IV infusion and carboplatin at a dose to achieve an area under the curve (AUC) of 6 milligrams per milliliter* minute (mg/mL*min) IV infusion every 3 weeks (q3w) for 6 cycles in neoadjuvant period. Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab 8 mg/kg (loading dose) and 6 mg/kg (maintenance dose) IV infusion q3w for rest of the cycles (12 cycles) in adjuvant period (up to a total of 18 cycles). Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab emtansine 3.6 mg/kg IV infusion q3w for a total of 18 cycles (6 cycles of neoadjuvant period and 12 cycles of adjuvant period).
    Measure Participants 213 218
    Number (95% Confidence Interval) [Percentage of Participants]
    52.6
    (45.65) 23.8%
    41.7
    (35.12) 18.7%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection TCH + P, T-DM1 + P
    Comments 95% CI for the difference in BCS rate between treatment arms was calculated using normal approximation.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.0228
    Comments
    Method Cochran-Mantel-Haenszel Chi-Square
    Comments The Cochran-Mantel-Haenszel Chi-square test was used and stratified by local hormone receptor status and clinical stage at presentation.
    Method of Estimation Estimation Parameter Difference in BCS rate
    Estimated Value -10.84
    Confidence Interval (2-Sided) 95%
    -20.21 to -1.47
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    4. Secondary Outcome
    Title Event-Free Survival
    Description Event-free survival (EFS) is defined as the time from randomization to disease progression or disease recurrence (local, regional, distant, or contralateral, invasive or non-invasive), or death from any cause. 3 years EFS rate per randomized treatment arms in the ITT population were estimated using the Kaplan-Meier method and estimated the probability of a patient being event-free after 3 years after treatment.
    Time Frame From randomization up to disease progression or recurrence or death (up to approximately 47 months)

    Outcome Measure Data

    Analysis Population Description
    The ITT Population comprised all randomized patients, whether or not they received any study treatment or completed a full course of study treatment. Patients were analyzed according to their randomized treatment.
    Arm/Group Title TCH + P T-DM1 + P
    Arm/Group Description Participants received pertuzumab 840 milligrams (mg) (loading dose) and 420 mg (maintenance dose) intravenous (IV) infusion, trastuzumab 8 milligrams per kilogram (mg/kg) (loading dose) and 6 mg/kg (maintenance dose) IV infusion, docetaxel 75 milligrams per square meter (mg/m^2) IV infusion and carboplatin at a dose to achieve an area under the curve (AUC) of 6 milligrams per milliliter* minute (mg/mL*min) IV infusion every 3 weeks (q3w) for 6 cycles in neoadjuvant period. Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab 8 mg/kg (loading dose) and 6 mg/kg (maintenance dose) IV infusion q3w for rest of the cycles (12 cycles) in adjuvant period (up to a total of 18 cycles). Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab emtansine 3.6 mg/kg IV infusion q3w for a total of 18 cycles (6 cycles of neoadjuvant period and 12 cycles of adjuvant period).
    Measure Participants 221 223
    Number (95% Confidence Interval) [Probability]
    94.21
    85.28
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection TCH + P, T-DM1 + P
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.0027
    Comments
    Method Log Rank
    Comments The Log Rank was used and stratified by local hormone receptor status and clinical stage at presentation.
    Method of Estimation Estimation Parameter Hazard Ratio (HR)
    Estimated Value 2.61
    Confidence Interval (2-Sided) 95%
    1.36 to 4.98
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    5. Secondary Outcome
    Title Invasive Disease-free Survival (IDFS)
    Description IDFS is defined only for participants who undergo surgery. IDFS is defined as the time from surgery to the first documented occurrence of an IDFS event, defined as: Ipsilateral invasive breast tumor recurrence; Ipsilateral local-regional invasive breast cancer recurrence; Distant recurrence; Contralateral invasive breast cancer; and death from any cause. 3 years of IDFS event-free rate per randomized treatment arms in the ITT population were estimated using the Kaplan-Meier method and estimated the probability of a patient being event-free after 3 years after treatment.
    Time Frame From surgery to the first documented occurrence of IDFC event (up to approximately 47 months)

    Outcome Measure Data

    Analysis Population Description
    The ITT Population comprised all randomized patients, whether or not they received any study treatment or completed a full course of study treatment. Patients were analyzed according to their randomized treatment.
    Arm/Group Title TCH + P T-DM1 + P
    Arm/Group Description Participants received pertuzumab 840 milligrams (mg) (loading dose) and 420 mg (maintenance dose) intravenous (IV) infusion, trastuzumab 8 milligrams per kilogram (mg/kg) (loading dose) and 6 mg/kg (maintenance dose) IV infusion, docetaxel 75 milligrams per square meter (mg/m^2) IV infusion and carboplatin at a dose to achieve an area under the curve (AUC) of 6 milligrams per milliliter* minute (mg/mL*min) IV infusion every 3 weeks (q3w) for 6 cycles in neoadjuvant period. Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab 8 mg/kg (loading dose) and 6 mg/kg (maintenance dose) IV infusion q3w for rest of the cycles (12 cycles) in adjuvant period (up to a total of 18 cycles). Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab emtansine 3.6 mg/kg IV infusion q3w for a total of 18 cycles (6 cycles of neoadjuvant period and 12 cycles of adjuvant period).
    Measure Participants 221 223
    Number (95% Confidence Interval) [Probability]
    91.99
    93.04
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection TCH + P, T-DM1 + P
    Comments
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value
    Comments
    Method
    Comments
    Method of Estimation Estimation Parameter Hazard Ratio (HR)
    Estimated Value 1.11
    Confidence Interval (2-Sided) 95%
    0.52 to 2.40
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    6. Secondary Outcome
    Title Percentage of Participants by Response for Neuropathy Single Item
    Description Participants answered the question "Did you have tingling hands/feet?", from the Modified Quality of Life Questionnaire Breast Cancer 23 (mQLQ-BR23), on a 5-point scale (1 'Not at all', 2 'A little', 3 'Somewhat', 4 'Quite a bit', 5 'Very much'). Percentage of participants by each response was reported.
    Time Frame Baseline,Cycle(C) 3,C5 of neoadjuvant period (each C=21 days); pre-surgery visit (within 6weeks after neoadjuvant therapy; up to approx 6months), C4 & 8 of Adjuvant Period (each C=21 days), End of Treatment, Follow up 2 & 4 (approx 47 months)

    Outcome Measure Data

    Analysis Population Description
    ITT population of patients with both a baseline assessment and at least one post-treatment assessment in the respective single question are included in the analysis.
    Arm/Group Title TCH + P T-DM1 + P
    Arm/Group Description Participants received pertuzumab 840 milligrams (mg) (loading dose) and 420 mg (maintenance dose) intravenous (IV) infusion, trastuzumab 8 milligrams per kilogram (mg/kg) (loading dose) and 6 mg/kg (maintenance dose) IV infusion, docetaxel 75 milligrams per square meter (mg/m^2) IV infusion and carboplatin at a dose to achieve an area under the curve (AUC) of 6 milligrams per milliliter* minute (mg/mL*min) IV infusion every 3 weeks (q3w) for 6 cycles in neoadjuvant period. Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab 8 mg/kg (loading dose) and 6 mg/kg (maintenance dose) IV infusion q3w for rest of the cycles (12 cycles) in adjuvant period (up to a total of 18 cycles). Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab emtansine 3.6 mg/kg IV infusion q3w for a total of 18 cycles (6 cycles of neoadjuvant period and 12 cycles of adjuvant period).
    Measure Participants 221 223
    Not at all: Baseline
    78.7
    35.6%
    81.2
    36.4%
    A little bit: Baseline
    9.5
    4.3%
    9.4
    4.2%
    Somewhat: Baseline
    0
    0%
    0
    0%
    Quite a bit: Baseline
    0.9
    0.4%
    0.9
    0.4%
    Very much: Baseline
    0.5
    0.2%
    0
    0%
    Not at all: Neoadjuvant Cycle 3
    54.3
    24.6%
    59.6
    26.7%
    A little bit: Neoadjuvant Cycle 3
    20.8
    9.4%
    19.3
    8.7%
    Somewhat: Neoadjuvant Cycle 3
    0
    0%
    0
    0%
    Quite a bit: Neoadjuvant Cycle 3
    3.2
    1.4%
    2.7
    1.2%
    Very much: Neoadjuvant Cycle 3
    1.8
    0.8%
    0.4
    0.2%
    Not at all: Neoadjuvant Cycle 5
    37.1
    16.8%
    54.3
    24.3%
    A little bit: Neoadjuvant Cycle 5
    29.9
    13.5%
    21.1
    9.5%
    Somewhat: Neoadjuvant Cycle 5
    0
    0%
    0
    0%
    Quite a bit: Neoadjuvant Cycle 5
    8.6
    3.9%
    2.7
    1.2%
    Very much: Neoadjuvant Cycle 5
    6.8
    3.1%
    1.8
    0.8%
    Not at all: Pre-Surgery
    22.6
    10.2%
    52.0
    23.3%
    A little bit: Pre-Surgery
    29.0
    13.1%
    17.9
    8%
    Somewhat: Pre-Surgery
    0
    0%
    0
    0%
    Quite a bit: Pre-Surgery
    15.4
    7%
    5.4
    2.4%
    Very much: Pre-Surgery
    10.0
    4.5%
    1.3
    0.6%
    Not at all: Adjuvant Cycle 4
    31.2
    14.1%
    42.6
    19.1%
    A little bit: Adjuvant Cycle 4
    31.7
    14.3%
    15.2
    6.8%
    Somewhat: Adjuvant Cycle 4
    0
    0%
    0
    0%
    Quite a bit: Adjuvant Cycle 4
    9.5
    4.3%
    9.0
    4%
    Very much: Adjuvant Cycle 4
    6.3
    2.9%
    2.7
    1.2%
    Not at all: Adjuvant Cycle 8
    33.0
    14.9%
    31.8
    14.3%
    A little bit: Adjuvant Cycle 8
    28.1
    12.7%
    19.3
    8.7%
    Somewhat: Adjuvant Cycle 8
    0
    0%
    0
    0%
    Quite a bit: Adjuvant Cycle 8
    10.9
    4.9%
    9.0
    4%
    Very much: Adjuvant Cycle 8
    4.1
    1.9%
    4.0
    1.8%
    Not at all: End of Therapy
    31.2
    14.1%
    31.4
    14.1%
    A little bit: End of Therapy
    30.8
    13.9%
    23.8
    10.7%
    Somewhat: End of Therapy
    0
    0%
    0
    0%
    Quite a bit: End of Therapy
    10.9
    4.9%
    12.1
    5.4%
    Very much: End of Therapy
    5.0
    2.3%
    6.7
    3%
    Not at all: Follow-up 2
    38.0
    17.2%
    32.7
    14.7%
    A little bit: Follow-up 2
    19.9
    9%
    19.3
    8.7%
    Somewhat: Follow-up 2
    0
    0%
    0
    0%
    Quite a bit: Follow-up 2
    5.9
    2.7%
    7.6
    3.4%
    Very much: Follow-up 2
    4.1
    1.9%
    1.3
    0.6%
    Not at all: Follow-up 4
    39.8
    18%
    32.7
    14.7%
    A little bit: Follow-up 4
    15.4
    7%
    17.9
    8%
    Somewhat: Follow-up 4
    0
    0%
    0
    0%
    Quite a bit: Follow-up 4
    4.1
    1.9%
    3.1
    1.4%
    Very much: Follow-up 4
    2.3
    1%
    1.8
    0.8%
    7. Secondary Outcome
    Title Percentage of Participants by Response for Skin Problem Single Items
    Description Participants answered the Question 1 "Did itching skin bother you?" and Question 2 "Have you had skin problems?", from the mQLQ-BR23, on a 5-point scale (1 'Not at all', 2 'A little', 3 'Somewhat', 4 'Quite a bit', 5 'Very much'). Percentage of participants by each response was reported.
    Time Frame Baseline,Cycle(C) 3,C5 of neoadjuvant period (each C=21 days); pre-surgery visit (within 6weeks after neoadjuvant therapy; up to approx 6months), C4 & 8 of Adjuvant Period (each C=21 days), End of Treatment, Follow up 2 & 4 (approx 47 months)

    Outcome Measure Data

    Analysis Population Description
    ITT population of patients with both a baseline assessment and at least one post-treatment assessment in the respective single question are included in the analysis.
    Arm/Group Title TCH + P T-DM1 + P
    Arm/Group Description Participants received pertuzumab 840 milligrams (mg) (loading dose) and 420 mg (maintenance dose) intravenous (IV) infusion, trastuzumab 8 milligrams per kilogram (mg/kg) (loading dose) and 6 mg/kg (maintenance dose) IV infusion, docetaxel 75 milligrams per square meter (mg/m^2) IV infusion and carboplatin at a dose to achieve an area under the curve (AUC) of 6 milligrams per milliliter* minute (mg/mL*min) IV infusion every 3 weeks (q3w) for 6 cycles in neoadjuvant period. Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab 8 mg/kg (loading dose) and 6 mg/kg (maintenance dose) IV infusion q3w for rest of the cycles (12 cycles) in adjuvant period (up to a total of 18 cycles). Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab emtansine 3.6 mg/kg IV infusion q3w for a total of 18 cycles (6 cycles of neoadjuvant period and 12 cycles of adjuvant period).
    Measure Participants 221 223
    Q1: Not at all: Baseline
    71.9
    32.5%
    72.6
    32.6%
    Q1: A little bit: Baseline
    14.9
    6.7%
    16.1
    7.2%
    Q1: Somewhat: Baseline
    0
    0%
    0
    0%
    Q1: Quite a bit: Baseline
    2.3
    1%
    2.2
    1%
    Q1: Very much: Baseline
    0
    0%
    0.4
    0.2%
    Q1: Not at all: Neoadjuvant Cycle 3
    35.3
    16%
    48.9
    21.9%
    Q1: A little bit: Neoadjuvant Cycle 3
    31.2
    14.1%
    27.4
    12.3%
    Q1: Somewhat: Neoadjuvant Cycle 3
    0
    0%
    0
    0%
    Q1: Quite a bit: Neoadjuvant Cycle 3
    10.9
    4.9%
    4.0
    1.8%
    Q1: Very much: Neoadjuvant Cycle 3
    2.3
    1%
    1.8
    0.8%
    Q1: Not at all: Neoadjuvant Cycle 5
    48.9
    22.1%
    46.2
    20.7%
    Q1: A little bit: Neoadjuvant Cycle 5
    23.1
    10.5%
    26.0
    11.7%
    Q1: Somewhat: Neoadjuvant Cycle 5
    0
    0%
    0
    0%
    Q1: Quite a bit: Neoadjuvant Cycle 5
    7.7
    3.5%
    6.3
    2.8%
    Q1: Very much: Neoadjuvant Cycle 5
    2.3
    1%
    1.3
    0.6%
    Q1: Not at all: Pre-Surgery
    40.3
    18.2%
    48.0
    21.5%
    Q1: A little bit: Pre-Surgery
    26.7
    12.1%
    21.5
    9.6%
    Q1: Somewhat: Pre-Surgery
    0
    0%
    0
    0%
    Q1: Quite a bit: Pre-Surgery
    7.2
    3.3%
    5.8
    2.6%
    Q1: Very much: Pre-Surgery
    2.7
    1.2%
    1.3
    0.6%
    Q1: Not at all: Adjuvant Cycle 4
    38.5
    17.4%
    39.0
    17.5%
    Q1: A little bit: Adjuvant Cycle 4
    23.5
    10.6%
    21.5
    9.6%
    Q1: Somewhat: Adjuvant Cycle 4
    0
    0%
    0
    0%
    Q1: Quite a bit: Adjuvant Cycle 4
    9.5
    4.3%
    6.7
    3%
    Q1: Very much: Adjuvant Cycle 4
    6.8
    3.1%
    2.2
    1%
    Q1: Not at all: Adjuvant Cycle 8
    34.8
    15.7%
    39.0
    17.5%
    Q1: A little bit: Adjuvant Cycle 8
    27.6
    12.5%
    15.7
    7%
    Q1: Somewhat: Adjuvant Cycle 8
    0
    0%
    0
    0%
    Q1: Quite a bit: Adjuvant Cycle 8
    9.0
    4.1%
    6.3
    2.8%
    Q1: Very much: Adjuvant Cycle 8
    4.1
    1.9%
    3.1
    1.4%
    Q1: Not at all: End of Therapy
    39.4
    17.8%
    42.6
    19.1%
    Q1: A little bit: End of Therapy
    26.7
    12.1%
    22.9
    10.3%
    Q1: Somewhat: End of Therapy
    0
    0%
    0
    0%
    Q1: Quite a bit: End of Therapy
    6.8
    3.1%
    6.7
    3%
    Q1: Very much: End of Therapy
    4.5
    2%
    1.8
    0.8%
    Q1: Not at all: Follow-up 2
    43.9
    19.9%
    39.9
    17.9%
    Q1: A little bit: Follow-up 2
    19.0
    8.6%
    14.8
    6.6%
    Q1: Somewhat: Follow-up 2
    0
    0%
    0
    0%
    Q1: Quite a bit: Follow-up 2
    3.6
    1.6%
    4.0
    1.8%
    Q1: Very much: Follow-up 2
    0.9
    0.4%
    2.2
    1%
    Q1: Not at all: Follow-up 4
    46.2
    20.9%
    37.7
    16.9%
    Q1: A little bit: Follow-up 4
    10.4
    4.7%
    12.1
    5.4%
    Q1: Somewhat: Follow-up 4
    0
    0%
    0
    0%
    Q1: Quite a bit: Follow-up 4
    3.2
    1.4%
    4.5
    2%
    Q1: Very much: Follow-up 4
    1.4
    0.6%
    1.3
    0.6%
    Q2: Not at all: Baseline
    64.7
    29.3%
    67.3
    30.2%
    Q2: A little bit: Baseline
    21.3
    9.6%
    17.9
    8%
    Q2: Somewhat: Baseline
    0
    0%
    0
    0%
    Q2: Quite a bit: Baseline
    3.2
    1.4%
    5.8
    2.6%
    Q2: Very much: Baseline
    0.5
    0.2%
    0.4
    0.2%
    Q2: Not at all: Neoadjuvant Cycle 3
    14.0
    6.3%
    24.2
    10.9%
    Q2: A little bit: Neoadjuvant Cycle 3
    40.7
    18.4%
    38.6
    17.3%
    Q2: Somewhat: Neoadjuvant Cycle 3
    0
    0%
    0
    0%
    Q2: Quite a bit: Neoadjuvant Cycle 3
    18.6
    8.4%
    14.8
    6.6%
    Q2: Very much: Neoadjuvant Cycle 3
    6.8
    3.1%
    4.5
    2%
    Q2: Not at all: Neoadjuvant Cycle 5
    21.3
    9.6%
    25.6
    11.5%
    Q2: A little bit: Neoadjuvant Cycle 5
    35.7
    16.2%
    37.7
    16.9%
    Q2: Somewhat: Neoadjuvant Cycle 5
    0
    0%
    0
    0%
    Q2: Quite a bit: Neoadjuvant Cycle 5
    20.4
    9.2%
    12.6
    5.7%
    Q2: Very much: Neoadjuvant Cycle 5
    5.0
    2.3%
    4.0
    1.8%
    Q2: Not at all: Pre-Surgery
    21.3
    9.6%
    27.4
    12.3%
    Q2: A little bit: Pre-Surgery
    33.9
    15.3%
    37.2
    16.7%
    Q2: Somewhat: Pre-Surgery
    0
    0%
    0
    0%
    Q2: Quite a bit: Pre-Surgery
    15.4
    7%
    8.1
    3.6%
    Q2: Very much: Pre-Surgery
    6.3
    2.9%
    4.0
    1.8%
    Q2: Not at all: Adjuvant Cycle 4
    23.5
    10.6%
    24.2
    10.9%
    Q2: A little bit: Adjuvant Cycle 4
    33.0
    14.9%
    30.9
    13.9%
    Q2: Somewhat: Adjuvant Cycle 4
    0
    0%
    0
    0%
    Q2: Quite a bit: Adjuvant Cycle 4
    13.1
    5.9%
    9.4
    4.2%
    Q2: Very much: Adjuvant Cycle 4
    9.0
    4.1%
    4.9
    2.2%
    Q2: Not at all: Adjuvant Cycle 8
    23.1
    10.5%
    25.6
    11.5%
    Q2: A little bit: Adjuvant Cycle 8
    35.7
    16.2%
    24.2
    10.9%
    Q2: Somewhat: Adjuvant Cycle 8
    0
    0%
    0
    0%
    Q2: Quite a bit: Adjuvant Cycle 8
    12.2
    5.5%
    9.9
    4.4%
    Q2: Very much: Adjuvant Cycle 8
    5.0
    2.3%
    4.5
    2%
    Q2: Not at all: End of Therapy
    27.1
    12.3%
    27.4
    12.3%
    Q2: A little bit: End of Therapy
    33.9
    15.3%
    30.0
    13.5%
    Q2: Somewhat: End of Therapy
    0
    0%
    0
    0%
    Q2: Quite a bit: End of Therapy
    10.0
    4.5%
    13.5
    6.1%
    Q2: Very much: End of Therapy
    6.8
    3.1%
    3.1
    1.4%
    Q2: Not at all: Follow-up 2
    36.2
    16.4%
    27.8
    12.5%
    Q2: A little bit: Follow-up 2
    25.8
    11.7%
    25.6
    11.5%
    Q2: Somewhat: Follow-up 2
    0
    0%
    0
    0%
    Q2: Quite a bit: Follow-up 2
    4.1
    1.9%
    6.3
    2.8%
    Q2: Very much: Follow-up 2
    1.8
    0.8%
    1.3
    0.6%
    Q2: Not at all: Follow-up 4
    39.8
    18%
    30.0
    13.5%
    Q2: A little bit: Follow-up 4
    14.5
    6.6%
    18.8
    8.4%
    Q2: Somewhat: Follow-up 4
    0
    0%
    0
    0%
    Q2: Quite a bit: Follow-up 4
    4.5
    2%
    4.5
    2%
    Q2: Very much: Follow-up 4
    2.7
    1.2%
    2.2
    1%
    8. Secondary Outcome
    Title Percentage of Participants With a Clinically Meaningful Deterioration in Global Health Status (GHS)/Quality of Life (QoL) Score
    Description Participants rated their quality of life (global health status) on European Organization for the Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire-Core 30 (QLQ- C30), with total scores ranging from 0 (worst) to 100 (best); where higher score indicates better quality of life. Clinically meaningful deterioration in GHS/QoL was defined as a decrease in score of 10 points in GHS/QoL.
    Time Frame From Baseline (Day 1 Cycle 1) to Cycle 6 (each cycle = 21 days) in neoadjuvant period

    Outcome Measure Data

    Analysis Population Description
    The Intent-to-treat (ITT) Population comprised all randomized participants, whether or not they received any study treatment or completed a full course of study treatment. Participants were analyzed according to their randomized treatment. As per protocol, the analysis for this outcome measure was focused on the neoadjuvant period only.
    Arm/Group Title TCH + P T-DM1 + P
    Arm/Group Description Participants received pertuzumab 840 milligrams (mg) (loading dose) and 420 mg (maintenance dose) intravenous (IV) infusion, trastuzumab 8 milligrams per kilogram (mg/kg) (loading dose) and 6 mg/kg (maintenance dose) IV infusion, docetaxel 75 milligrams per square meter (mg/m^2) IV infusion and carboplatin at a dose to achieve an area under the curve (AUC) of 6 milligrams per milliliter* minute (mg/mL*min) IV infusion every 3 weeks (q3w) for 6 cycles in neoadjuvant period. Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab 8 mg/kg (loading dose) and 6 mg/kg (maintenance dose) IV infusion q3w for rest of the cycles (12 cycles) in adjuvant period (up to a total of 18 cycles). Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab emtansine 3.6 mg/kg IV infusion q3w for a total of 18 cycles (6 cycles of neoadjuvant period and 12 cycles of adjuvant period).
    Measure Participants 193 205
    Number [Percentage of Participants]
    69.9
    31.6%
    45.4
    20.4%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection TCH + P, T-DM1 + P
    Comments 95% CI for the difference in clinically meaningful deterioration in GHS/QoL score between treatment arms was calculated using normal approximation.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value
    Comments
    Method
    Comments
    Method of Estimation Estimation Parameter Difference in Deterioration
    Estimated Value -24.58
    Confidence Interval (2-Sided) 95%
    -33.98 to -15.19
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    9. Secondary Outcome
    Title Time to Clinically Meaningful Deterioration in GHS/QoL Score
    Description Participants rated their quality of life (global health status) on EORTC QLQ C-30, with total scores ranging from 0 (worst) to 100 (best); where higher score indicates better quality of life. Time to deterioration was defined as the time from baseline to first 10-point (or greater) decrease as measured by GHS/QoL. All valid GHS/QoL questionnaires of the neoadjuvant phase including surgery were used. Participants without deterioration were censored at the time of completing the last GHS/QoL plus 1 day. Median time to deterioration was estimated with Kaplan-Meier method. The 95% confidence interval (CI) for the median was computed using the method of Brookmeyer and Crowley.
    Time Frame From Baseline (Day 1 Cycle 1) to Cycle 6 (each cycle = 21 days) in neoadjuvant period

    Outcome Measure Data

    Analysis Population Description
    The Intent-to-treat (ITT) Population comprised all randomized participants, whether or not they received any study treatment or completed a full course of study treatment. Participants were analyzed according to their randomized treatment. As per protocol, the analysis for this outcome measure was focused on the neoadjuvant period only.
    Arm/Group Title TCH + P T-DM1 + P
    Arm/Group Description Participants received pertuzumab 840 milligrams (mg) (loading dose) and 420 mg (maintenance dose) intravenous (IV) infusion, trastuzumab 8 milligrams per kilogram (mg/kg) (loading dose) and 6 mg/kg (maintenance dose) IV infusion, docetaxel 75 milligrams per square meter (mg/m^2) IV infusion and carboplatin at a dose to achieve an area under the curve (AUC) of 6 milligrams per milliliter* minute (mg/mL*min) IV infusion every 3 weeks (q3w) for 6 cycles in neoadjuvant period. Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab 8 mg/kg (loading dose) and 6 mg/kg (maintenance dose) IV infusion q3w for rest of the cycles (12 cycles) in adjuvant period (up to a total of 18 cycles). Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab emtansine 3.6 mg/kg IV infusion q3w for a total of 18 cycles (6 cycles of neoadjuvant period and 12 cycles of adjuvant period).
    Measure Participants 191 200
    Median (95% Confidence Interval) [months]
    3.02
    (2.83)
    4.63
    (4.11)
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection TCH + P, T-DM1 + P
    Comments Stratified cox proportional hazards regression model was used to estimate Hazard Ratio and CI. Stratification by hormonal receptor status and clinical stage at presentation (stratification factors).
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.0001
    Comments
    Method Log Rank
    Comments Log Rank was used and stratified by local hormone receptor status and clinical stage at presentation.
    Method of Estimation Estimation Parameter Hazard Ratio (HR)
    Estimated Value 0.60
    Confidence Interval (2-Sided) 95%
    0.46 to 0.78
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    10. Secondary Outcome
    Title Time to Clinically Meaningful Deterioration in Function Subscale
    Description Participants rated their function on EORTC QLQ C-30, with total scores ranging from 0 (worst) to 100 (best); where higher score indicates better functioning. Time to deterioration was defined as the time from baseline to first 10-point (or greater) decrease as measured by physical function; to first 14-point (or greater) decrease as measured by role function, to first 7-point (or greater) decrease as measured by cognitive function. Median time to deterioration was estimated with Kaplan-Meier method. The 95% CI for the median was computed using the method of Brookmeyer and Crowley.
    Time Frame From Baseline (Day 1 Cycle 1) to Cycle 6 (each cycle = 21 days) in neoadjuvant period

    Outcome Measure Data

    Analysis Population Description
    Patients of the ITT population with a baseline assessment and at least one post-treatment assessment was included in this analysis.
    Arm/Group Title TCH + P T-DM1 + P
    Arm/Group Description Participants received pertuzumab 840 milligrams (mg) (loading dose) and 420 mg (maintenance dose) intravenous (IV) infusion, trastuzumab 8 milligrams per kilogram (mg/kg) (loading dose) and 6 mg/kg (maintenance dose) IV infusion, docetaxel 75 milligrams per square meter (mg/m^2) IV infusion and carboplatin at a dose to achieve an area under the curve (AUC) of 6 milligrams per milliliter* minute (mg/mL*min) IV infusion every 3 weeks (q3w) for 6 cycles in neoadjuvant period. Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab 8 mg/kg (loading dose) and 6 mg/kg (maintenance dose) IV infusion q3w for rest of the cycles (12 cycles) in adjuvant period (up to a total of 18 cycles). Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab emtansine 3.6 mg/kg IV infusion q3w for a total of 18 cycles (6 cycles of neoadjuvant period and 12 cycles of adjuvant period).
    Measure Participants 191 200
    Physical Function
    2.79
    4.86
    Role Function
    2.79
    4.44
    Cognitive Function
    3.42
    4.44
    11. Secondary Outcome
    Title Maximum Observed Serum Concentration (Cmax) of Trastuzumab
    Description Only participants who received trastuzumab were to be analyzed for this outcome.
    Time Frame 15-30 minutes (min) post-study treatment infusion (infusion duration = 90 min) on Day 1 of Cycle 1 and 6 (each cycle = 21 days) in neoadjuvant and adjuvant period

    Outcome Measure Data

    Analysis Population Description
    The pharmacokinetic population comprised all patients who received at least one treatment dose of trastuzumab emtansine (for patients in the T-DM1 + P arm) or trastuzumab (for patients in the TCH + P arm), and had at least one post-treatment serum or plasma sample.
    Arm/Group Title TCH + P
    Arm/Group Description Participants received pertuzumab 840 milligrams (mg) (loading dose) and 420 mg (maintenance dose) intravenous (IV) infusion, trastuzumab 8 milligrams per kilogram (mg/kg) (loading dose) and 6 mg/kg (maintenance dose) IV infusion, docetaxel 75 milligrams per square meter (mg/m^2) IV infusion and carboplatin at a dose to achieve an area under the curve (AUC) of 6 milligrams per milliliter* minute (mg/mL*min) IV infusion every 3 weeks (q3w) for 6 cycles in neoadjuvant period. Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab 8 mg/kg (loading dose) and 6 mg/kg (maintenance dose) IV infusion q3w for rest of the cycles (12 cycles) in adjuvant period (up to a total of 18 cycles).
    Measure Participants 214
    Cycle 1 (neoadjuvant period)
    167
    (47.1)
    Cycle 6 (neoadjuvant period)
    148
    (44.7)
    Cycle 1 (adjuvant period)
    159
    (36.2)
    Cycle 6 (adjuvant period)
    181
    (30.7)
    12. Secondary Outcome
    Title Cmax of Trastuzumab Emtansine and Total Trastuzumab
    Description Only participants who received trastuzumab emtansine were to be analyzed for this outcome.
    Time Frame 15-30 min post-study treatment infusion (infusion duration = 90 min) on Day 1 of Cycle 1 and 6 (each cycle = 21 days) in neoadjuvant and adjuvant period.

    Outcome Measure Data

    Analysis Population Description
    The pharmacokinetic population comprised all patients who received at least one treatment dose of trastuzumab emtansine (for patients in the T-DM1 + P arm) or trastuzumab (for patients in the TCH + P arm), and had at least one post-treatment serum or plasma sample.
    Arm/Group Title T-DM1 + P
    Arm/Group Description Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab emtansine 3.6 mg/kg IV infusion q3w for a total of 18 cycles (6 cycles of neoadjuvant period and 12 cycles of adjuvant period).
    Measure Participants 222
    Trastuzumab emtansine: C1 (neoadjuvant)
    80.4
    (26.5)
    Trastuzumab emtansine: C6 (neoadjuvant)
    71.7
    (30.2)
    Total Trastuzumab: C1 (neoadjuvant)
    79.1
    (25.7)
    Total Trastuzumab: C6 (neoadjuvant)
    79.1
    (31.1)
    Trastuzumab emtansine: C1 (adjuvant)
    70.4
    (22.7)
    Trastuzumab emtansine: C6 (adjuvant)
    73.1
    (21.8)
    Total Trastuzumab: C1 (adjuvant)
    73.0
    (23.2)
    Total Trastuzumab: C6 (adjuvant)
    82.6
    (23.7)
    13. Secondary Outcome
    Title Minimum Observed Serum Concentration (Cmin) of Trastuzumab
    Description Only participants who received trastuzumab were to be analyzed for this outcome.
    Time Frame Pre-study treatment infusion (0 hours [hr]) (infusion duration = 90 min) on Day 1 of Cycle 6 (cycle length = 21 days) in neoadjuvant and adjuvant period

    Outcome Measure Data

    Analysis Population Description
    The pharmacokinetic population comprised all patients who received at least one treatment dose of trastuzumab emtansine (for patients in the T-DM1 + P arm) or trastuzumab (for patients in the TCH + P arm), and had at least one post-treatment serum or plasma sample.
    Arm/Group Title TCH + P
    Arm/Group Description Participants received pertuzumab 840 milligrams (mg) (loading dose) and 420 mg (maintenance dose) intravenous (IV) infusion, trastuzumab 8 milligrams per kilogram (mg/kg) (loading dose) and 6 mg/kg (maintenance dose) IV infusion, docetaxel 75 milligrams per square meter (mg/m^2) IV infusion and carboplatin at a dose to achieve an area under the curve (AUC) of 6 milligrams per milliliter* minute (mg/mL*min) IV infusion every 3 weeks (q3w) for 6 cycles in neoadjuvant period. Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab 8 mg/kg (loading dose) and 6 mg/kg (maintenance dose) IV infusion q3w for rest of the cycles (12 cycles) in adjuvant period (up to a total of 18 cycles).
    Measure Participants 214
    Trastuzumab (neoadjuvant period)
    45.8
    (17.8)
    Trastuzumab (adjuvant period)
    21.8
    (0.153)
    14. Secondary Outcome
    Title Cmin of Trastuzumab Emtansine and Total Trastuzumab
    Description Only participants who received trastuzumab emtansine were to be analyzed for this outcome.
    Time Frame Pre-study treatment infusion (0 hr) (infusion duration = 90 min) on Day 1 of Cycle 6 (cycle length = 21 days) in neoadjuvant and adjuvant period

    Outcome Measure Data

    Analysis Population Description
    The pharmacokinetic population comprised all patients who received at least one treatment dose of trastuzumab emtansine (for patients in the T-DM1 + P arm) or trastuzumab (for patients in the TCH + P arm), and had at least one post-treatment serum or plasma sample.
    Arm/Group Title T-DM1 + P
    Arm/Group Description Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab emtansine 3.6 mg/kg IV infusion q3w for a total of 18 cycles (6 cycles of neoadjuvant period and 12 cycles of adjuvant period).
    Measure Participants 222
    Trastuzumab emtansine (neoadjuvant)
    3.04
    (7.43)
    Total Trastuzumab (neoadjuvant)
    12.3
    (8.68)
    Trastuzumab emtansine (adjuvant)
    4.09
    (11.7)
    Total Trastuzumab (adjuvant)
    8.70
    (6.98)
    15. Secondary Outcome
    Title Plasma N2'-Deacetyl-N2'-(3-mercapto-1-oxopropyl)-Maytansine (DM1) Concentrations
    Description DM1 is the metabolite of trastuzumab emtansine. Only participants who received trastuzumab emtansine were to be analyzed for this outcome.
    Time Frame 15-30 min post-study treatment infusion (Cmax) on Day 1 of Cycle 1 and 6 in neoadjuvant and adjuvant period

    Outcome Measure Data

    Analysis Population Description
    The pharmacokinetic population comprised all patients who received at least one treatment dose of trastuzumab emtansine (for patients in the T-DM1 + P arm) or trastuzumab (for patients in the TCH + P arm), and had at least one post-treatment serum or plasma sample.
    Arm/Group Title T-DM1 + P
    Arm/Group Description Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab emtansine 3.6 mg/kg IV infusion q3w for a total of 18 cycles (6 cycles of neoadjuvant period and 12 cycles of adjuvant period).
    Measure Participants 222
    C1: 15-30 min post-dose (neoadjuvant)
    4.64
    (2.33)
    C6: 15-30 min post-dose (neoadjuvant)
    4.73
    (2.61)
    C1: 15-30 min post-dose (adjuvant)
    4.49
    (2.33)
    C6: 15-30 min post-dose (adjuvant)
    5.15
    (8.28)
    16. Secondary Outcome
    Title Serum Levels of Plasma DM1-Containing Catabolites Concentrations (in ng/mL) (Nonreducible Thioether Linker [MCC]-DM1 and Lysine [Lys]-MCC-DM1)
    Description
    Time Frame 15-30 min post-study treatment infusion (Cmax) on Day 1 of Cycle 1 and 6 in neoadjuvant and adjuvant period

    Outcome Measure Data

    Analysis Population Description
    The pharmacokinetic population comprised all patients who received at least one treatment dose of trastuzumab emtansine (for patients in the T-DM1 + P arm) or trastuzumab (for patients in the TCH + P arm), and had at least one post-treatment serum or plasma sample.
    Arm/Group Title T-DM1 + P
    Arm/Group Description Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab emtansine 3.6 mg/kg IV infusion q3w for a total of 18 cycles (6 cycles of neoadjuvant period and 12 cycles of adjuvant period).
    Measure Participants 222
    C1: MCC-DM1 (Neoadjuvant Period)
    8.18
    (7.23)
    C1: Lys-MCC-DM1 (Neoadjuvant period)
    NA
    (NA)
    C6: MCC-DM1 (Neoadjuvant Period)
    8.22
    (8.03)
    C6: Lys-MCC-DM1 (Neoadjuvant period)
    NA
    (NA)
    C1: MCC-DM1 (Adjuvant Period)
    7.98
    (6.46)
    C1: Lys-MCC-DM1 (Adjuvant period)
    NA
    (NA)
    C6: MCC-DM1 (Adjuvant Period)
    7.90
    (5.37)
    C6: Lys-MCC-DM1 (Adjuvant period)
    NA
    (NA)
    17. Secondary Outcome
    Title Percentage of Participants With ATA to Trastuzumab
    Description
    Time Frame Baseline (Pre-trastuzumab [0 hr] infusion [infusion duration = 90 min] on Day 1 of Cycle 1); post-baseline (Pre-trastuzumab infusion [0 hr] on Day 1 of Cycle 6) (each cycle = 21 days) in neoadjuvant and adjuvant period

    Outcome Measure Data

    Analysis Population Description
    The participants included in this analysis were the participants who received at least one dose of trastuzumab and had at least one reported serum or plasma results.
    Arm/Group Title T-DM1 + P
    Arm/Group Description Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab emtansine 3.6 mg/kg IV infusion q3w for a total of 18 cycles (6 cycles of neoadjuvant period and 12 cycles of adjuvant period).
    Measure Participants 210
    Neoadjuvant Phase (baseline)
    11
    5%
    Neoadjuvant Phase (post-baseline)
    2.6
    1.2%
    Adjuvant Phase (baseline)
    5.4
    2.4%
    Adjuvant Phase (post-baseline)
    5.0
    2.3%
    18. Secondary Outcome
    Title Percentage of Participants by Response for Hair Loss Single Item
    Description Participants answered the Question "Have you lost any hair?", from the mQLQ-BR23, on a 5-point scale (1 'Not at all', 2 'A little', 3 'Somewhat', 4 'Quite a bit', 5 'Very much'). Percentage of participants by each response was reported.
    Time Frame Baseline,Cycle(C) 3, C5 of neoadjuvant period (each C=21 days); pre-surgery visit (within 6weeks after neoadjuvant therapy; up to approx 6months), C4 & 8 of Adjuvant Period (each C=21 days), End of Treatment, Follow up 2 & 4(approx 47 months)

    Outcome Measure Data

    Analysis Population Description
    ITT population of patients with both a baseline assessment and at least one post-treatment assessment in the respective single question are included in the analysis.
    Arm/Group Title TCH + P T-DM1 + P
    Arm/Group Description Participants received pertuzumab 840 milligrams (mg) (loading dose) and 420 mg (maintenance dose) intravenous (IV) infusion, trastuzumab 8 milligrams per kilogram (mg/kg) (loading dose) and 6 mg/kg (maintenance dose) IV infusion, docetaxel 75 milligrams per square meter (mg/m^2) IV infusion and carboplatin at a dose to achieve an area under the curve (AUC) of 6 milligrams per milliliter* minute (mg/mL*min) IV infusion every 3 weeks (q3w) for 6 cycles in neoadjuvant period. Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab 8 mg/kg (loading dose) and 6 mg/kg (maintenance dose) IV infusion q3w for rest of the cycles (12 cycles) in adjuvant period (up to a total of 18 cycles). Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab emtansine 3.6 mg/kg IV infusion q3w for a total of 18 cycles (6 cycles of neoadjuvant period and 12 cycles of adjuvant period).
    Measure Participants 221 223
    Not at all: Baseline
    81.4
    36.8%
    87.4
    39.2%
    A little bit: Baseline
    7.7
    3.5%
    4.0
    1.8%
    Somewhat: Baseline
    0
    0%
    0
    0%
    Quite a bit: Baseline
    0.5
    0.2%
    0
    0%
    Very much: Baseline
    0
    0%
    0
    0%
    Not at all: Neoadjuvant Cycle 3
    8.6
    3.9%
    65.0
    29.1%
    A little bit: Neoadjuvant Cycle 3
    11.3
    5.1%
    16.6
    7.4%
    Somewhat: Neoadjuvant Cycle 3
    0
    0%
    0
    0%
    Quite a bit: Neoadjuvant Cycle 3
    20.8
    9.4%
    0.4
    0.2%
    Very much: Neoadjuvant Cycle 3
    39.4
    17.8%
    0
    0%
    Not at all: Neoadjuvant Cycle 5
    20.4
    9.2%
    58.7
    26.3%
    A little bit: Neoadjuvant Cycle 5
    19.9
    9%
    19.3
    8.7%
    Somewhat: Neoadjuvant Cycle 5
    0
    0%
    0
    0%
    Quite a bit: Neoadjuvant Cycle 5
    15.8
    7.1%
    1.3
    0.6%
    Very much: Neoadjuvant Cycle 5
    26.2
    11.9%
    0.4
    0.2%
    Not at all: Pre-Surgery
    30.8
    13.9%
    49.8
    22.3%
    A little bit: Pre-Surgery
    13.6
    6.2%
    24.7
    11.1%
    Somewhat: Pre-Surgery
    0
    0%
    0
    0%
    Quite a bit: Pre-Surgery
    11.3
    5.1%
    2.2
    1%
    Very much: Pre-Surgery
    21.3
    9.6%
    0
    0%
    Not at all: Adjuvant Cycle 4
    67.9
    30.7%
    50.2
    22.5%
    A little bit: Adjuvant Cycle 4
    5.0
    2.3%
    15.7
    7%
    Somewhat: Adjuvant Cycle 4
    0
    0%
    0
    0%
    Quite a bit: Adjuvant Cycle 4
    3.2
    1.4%
    2.2
    1%
    Very much: Adjuvant Cycle 4
    2.7
    1.2%
    1.3
    0.6%
    Not at all: Adjuvant Cycle 8
    70.1
    31.7%
    48.9
    21.9%
    A little bit: Adjuvant Cycle 8
    4.1
    1.9%
    14.3
    6.4%
    Somewhat: Adjuvant Cycle 8
    0
    0%
    0
    0%
    Quite a bit: Adjuvant Cycle 8
    0.9
    0.4%
    0.9
    0.4%
    Very much: Adjuvant Cycle 8
    0.9
    0.4%
    0
    0%
    Not at all: End of Therapy
    69.7
    31.5%
    57.8
    25.9%
    A little bit: End of Therapy
    5.4
    2.4%
    14.8
    6.6%
    Somewhat: End of Therapy
    0
    0%
    0
    0%
    Quite a bit: End of Therapy
    0.9
    0.4%
    0
    0%
    Very much: End of Therapy
    1.8
    0.8%
    1.3
    0.6%
    Not at all: Follow-up 2
    55.7
    25.2%
    48.4
    21.7%
    A little bit: Follow-up 2
    9.0
    4.1%
    11.7
    5.2%
    Somewhat: Follow-up 2
    0
    0%
    0
    0%
    Quite a bit: Follow-up 2
    1.4
    0.6%
    0.4
    0.2%
    Very much: Follow-up 2
    1.8
    0.8%
    0.4
    0.2%
    Not at all: Follow-up 4
    52.9
    23.9%
    41.3
    18.5%
    A little bit: Follow-up 4
    7.2
    3.3%
    11.2
    5%
    Somewhat: Follow-up 4
    0
    0%
    0
    0%
    Quite a bit: Follow-up 4
    0
    0%
    2.7
    1.2%
    Very much: Follow-up 4
    1.4
    0.6%
    0.4
    0.2%
    19. Secondary Outcome
    Title Percentage of Participants With Selected Adverse Events (AEs)
    Description Selected AEs included hepatotoxicity, pulmonary toxicity, cardiac dysfunction, neutropenia, thrombocytopenia, peripheral neuropathy, hemorrhage, infusion related reaction (IRR)/hypersensitivity, IRR/Hypersensitivity symptoms, rash, diarrhea and mucositis. An AE was defined as any untoward medical occurrence in a clinical investigation participant administered a pharmaceutical product, regardless of causal attribution.
    Time Frame Baseline to end of study (approximately 47 months)

    Outcome Measure Data

    Analysis Population Description
    The Safety Population comprised all patients who received at least one full or partial dose of any study treatment. Patients were analyzed according to the treatment they actually received.
    Arm/Group Title TCH + P T-DM1 + P
    Arm/Group Description Participants received pertuzumab 840 milligrams (mg) (loading dose) and 420 mg (maintenance dose) intravenous (IV) infusion, trastuzumab 8 milligrams per kilogram (mg/kg) (loading dose) and 6 mg/kg (maintenance dose) IV infusion, docetaxel 75 milligrams per square meter (mg/m^2) IV infusion and carboplatin at a dose to achieve an area under the curve (AUC) of 6 milligrams per milliliter* minute (mg/mL*min) IV infusion every 3 weeks (q3w) for 6 cycles in neoadjuvant period. Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab 8 mg/kg (loading dose) and 6 mg/kg (maintenance dose) IV infusion q3w for rest of the cycles (12 cycles) in adjuvant period (up to a total of 18 cycles). Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab emtansine 3.6 mg/kg IV infusion q3w for a total of 18 cycles (6 cycles of neoadjuvant period and 12 cycles of adjuvant period).
    Measure Participants 219 223
    Hepatotoxicity
    14.2
    6.4%
    39.0
    17.5%
    Pulmonary Toxicity
    0.9
    0.4%
    4.9
    2.2%
    Cardiac Dysfunction
    4.6
    2.1%
    1.3
    0.6%
    Neutropenia
    39.7
    18%
    8.1
    3.6%
    Thrombocytopenia
    22.8
    10.3%
    17.9
    8%
    Peripheral Neuropathy
    47.5
    21.5%
    28.7
    12.9%
    Hemorrhage
    19.2
    8.7%
    33.2
    14.9%
    IRR/Hypersensitivity
    13.7
    6.2%
    22.9
    10.3%
    IRR/Hypersensitivity symptoms
    7.8
    3.5%
    19.3
    8.7%
    Rash
    44.7
    20.2%
    36.8
    16.5%
    Diarrhea
    76.7
    34.7%
    38.6
    17.3%
    Mucositis
    43.8
    19.8%
    24.7
    11.1%
    20. Secondary Outcome
    Title Percentage of Participants With a Clinically Meaningful Deterioration in Function Subscales
    Description Participants rated their function on EORTC QLQ C-30, with total score and single-item (physical, cognitive and role functioning) scores ranging from 0 (worst) to 100 (best); where higher score indicates better functioning. Clinically meaningful deterioration was defined as a decrease in score of 10 points in physical function; decrease of 7 points in cognitive function and decrease of 14 points in role function.
    Time Frame From Baseline (Day 1 Cycle 1) to Cycle 6 (each cycle = 21 days) in neoadjuvant period

    Outcome Measure Data

    Analysis Population Description
    The Intent-to-treat (ITT) Population comprised all randomized participants, whether or not they received any study treatment or completed a full course of study treatment. Participants were analyzed according to their randomized treatment. As per protocol, the analysis for this outcome measure was focused on the neoadjuvant period only.
    Arm/Group Title TCH + P T-DM1 + P
    Arm/Group Description Participants received pertuzumab 840 milligrams (mg) (loading dose) and 420 mg (maintenance dose) intravenous (IV) infusion, trastuzumab 8 milligrams per kilogram (mg/kg) (loading dose) and 6 mg/kg (maintenance dose) IV infusion, docetaxel 75 milligrams per square meter (mg/m^2) IV infusion and carboplatin at a dose to achieve an area under the curve (AUC) of 6 milligrams per milliliter* minute (mg/mL*min) IV infusion every 3 weeks (q3w) for 6 cycles in neoadjuvant period. Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab 8 mg/kg (loading dose) and 6 mg/kg (maintenance dose) IV infusion q3w for rest of the cycles (12 cycles) in adjuvant period (up to a total of 18 cycles). Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab emtansine 3.6 mg/kg IV infusion q3w for a total of 18 cycles (6 cycles of neoadjuvant period and 12 cycles of adjuvant period).
    Measure Participants 193 205
    Cognitive Functioning
    59.1
    26.7%
    42.4
    19%
    Physical Functioning
    72.5
    32.8%
    40.0
    17.9%
    Role Functioning
    76.7
    34.7%
    47.8
    21.4%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection TCH + P, T-DM1 + P
    Comments This is the statistical analysis for cognitive functioning. 95% CI for the difference in clinically meaningful deterioration in function subscales between treatment arms was calculated using normal approximation.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value
    Comments
    Method
    Comments
    Method of Estimation Estimation Parameter Difference in Deterioration
    Estimated Value -16.63
    Confidence Interval (2-Sided) 95%
    -26.32 to -6.94
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 2
    Statistical Analysis Overview Comparison Group Selection TCH + P, T-DM1 + P
    Comments This is the statistical analysis for physical functioning. 95% CI for the difference in clinically meaningful deterioration in function subscales between treatment arms was calculated using normal approximation.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value
    Comments
    Method
    Comments
    Method of Estimation Estimation Parameter Difference in Deterioration
    Estimated Value -32.54
    Confidence Interval (2-Sided) 95%
    -41.74 to -23.34
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 3
    Statistical Analysis Overview Comparison Group Selection TCH + P, T-DM1 + P
    Comments This is the statistical analysis for role functioning. 95% CI for the difference in clinically meaningful deterioration in function subscales between treatment arms was calculated using normal approximation.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value
    Comments
    Method
    Comments
    Method of Estimation Estimation Parameter Difference in Deterioration
    Estimated Value -28.88
    Confidence Interval (2-Sided) 95%
    -37.95 to -19.80
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    21. Secondary Outcome
    Title Percentage of Participants With Anti-Therapeutic Antibodies (ATA) to TDM-1
    Description Participants were considered post-baseline ATA positive if they had ATAs post-baseline that were either treatment-induced or treatment-enhanced. Participants had treatment-induced ATAs if they had a negative or missing ATA result at baseline, and at least one positive ATA result post-baseline. Participants had treatment-enhanced ATAs if they had a positive ATA result at baseline, and at least one positive ATA result post-baseline that was greater than or equal to (>/=) 0.60 titer units higher than the result at baseline.
    Time Frame Baseline (b) (Pre-TDM1 [0 hr] infusion [infusion duration = 90 min] on Day 1 of Cycle 1); post-baseline (pb) (Pre-TDM1 infusion [0 hr] on Day 1 of Cycle 6) (each cycle = 21 days) in neoadjuvant and adjuvant period

    Outcome Measure Data

    Analysis Population Description
    The participants included in this analysis were the participants who received at least one dose of trastuzumab emtansine and had at least one reported serum or plasma results.
    Arm/Group Title T-DM1 + P
    Arm/Group Description Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab emtansine 3.6 mg/kg IV infusion q3w for a total of 18 cycles (6 cycles of neoadjuvant period and 12 cycles of adjuvant period).
    Measure Participants 219
    Neoadjuvant Phase (Baseline)
    5.5
    2.5%
    Neoadjuvant Phase (Post-Baseline)
    7.5
    3.4%
    Adjuvant Phase (Baseline)
    11.7
    5.3%
    Adjuvant Phase (Post-baseline)
    13.1
    5.9%
    22. Secondary Outcome
    Title Percentage of Participants With a Clinically Meaningful Increase in Symptom Subscales
    Description Participants rated their symptoms on EORTC QLQ C-30 and mQLQ-BR23, with total scores ranging from 0 (worst) to 100 (best); where higher score indicates greater degree of symptoms. Clinically meaningful increase in symptoms was defined as an increase in score (deterioration) of 11 points in nausea and vomiting, pain, dyspnea; increase of 9 points in insomnia; increase of 14 points in appetite loss; increase of 15 points in diarrhea, constipation; increase of 10 points in fatigue, systemic therapy side effects, hair loss.
    Time Frame From Baseline (Day 1 Cycle 1) to Cycle 6 (each cycle = 21 days) in neoadjuvant period

    Outcome Measure Data

    Analysis Population Description
    The Intent-to-treat (ITT) Population comprised all randomized participants, whether or not they received any study treatment or completed a full course of study treatment. Participants were analyzed according to their randomized treatment. As per protocol, the analysis for this outcome measure was focused on the neoadjuvant period only.
    Arm/Group Title TCH + P T-DM1 + P
    Arm/Group Description Participants received pertuzumab 840 milligrams (mg) (loading dose) and 420 mg (maintenance dose) intravenous (IV) infusion, trastuzumab 8 milligrams per kilogram (mg/kg) (loading dose) and 6 mg/kg (maintenance dose) IV infusion, docetaxel 75 milligrams per square meter (mg/m^2) IV infusion and carboplatin at a dose to achieve an area under the curve (AUC) of 6 milligrams per milliliter* minute (mg/mL*min) IV infusion every 3 weeks (q3w) for 6 cycles in neoadjuvant period. Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab 8 mg/kg (loading dose) and 6 mg/kg (maintenance dose) IV infusion q3w for rest of the cycles (12 cycles) in adjuvant period (up to a total of 18 cycles). Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab emtansine 3.6 mg/kg IV infusion q3w for a total of 18 cycles (6 cycles of neoadjuvant period and 12 cycles of adjuvant period).
    Measure Participants 194 205
    Appetite Loss
    61.1
    27.6%
    47.8
    21.4%
    Any Hair Loss
    91.2
    41.3%
    40.5
    18.2%
    Systemic Therapy Side-Effects
    89.7
    40.6%
    75.1
    33.7%
    Constipation
    33.2
    15%
    32.7
    14.7%
    Diarrhea
    79.3
    35.9%
    50.7
    22.7%
    Dyspnea
    56.0
    25.3%
    31.2
    14%
    Fatigue
    87.6
    39.6%
    68.8
    30.9%
    Nausea/Vomiting
    66.3
    30%
    43.9
    19.7%
    Pain
    56.0
    25.3%
    36.6
    16.4%
    Insomnia
    42.5
    19.2%
    30.2
    13.5%

    Adverse Events

    Time Frame From Baseline up to approximately 47 months
    Adverse Event Reporting Description Safety population was analyzed.
    Arm/Group Title TCH + P T-DM1 + P
    Arm/Group Description Participants received pertuzumab 840 milligrams (mg) (loading dose) and 420 mg (maintenance dose) intravenous (IV) infusion, trastuzumab 8 milligrams per kilogram (mg/kg) (loading dose) and 6 mg/kg (maintenance dose) IV infusion, docetaxel 75 milligrams per square meter (mg/m^2) IV infusion and carboplatin at a dose to achieve an area under the curve (AUC) of 6 milligrams per milliliter* minute (mg/mL*min) IV infusion every 3 weeks (q3w) for 6 cycles in neoadjuvant period. Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab 8 mg/kg (loading dose) and 6 mg/kg (maintenance dose) IV infusion q3w for rest of the cycles (12 cycles) in adjuvant period (up to a total of 18 cycles). Participants received pertuzumab 840 mg (loading dose) and 420 mg (maintenance dose) IV infusion followed by trastuzumab emtansine 3.6 mg/kg IV infusion q3w for a total of 18 cycles (6 cycles of neoadjuvant period and 12 cycles of adjuvant period).
    All Cause Mortality
    TCH + P T-DM1 + P
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 5/219 (2.3%) 6/223 (2.7%)
    Serious Adverse Events
    TCH + P T-DM1 + P
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 70/219 (32%) 30/223 (13.5%)
    Blood and lymphatic system disorders
    Anaemia 0/219 (0%) 0 3/223 (1.3%) 3
    Febrile neutropenia 26/219 (11.9%) 33 3/223 (1.3%) 3
    Neutropenia 7/219 (3.2%) 7 0/223 (0%) 0
    Thrombocytopenia 1/219 (0.5%) 1 1/223 (0.4%) 1
    Cardiac disorders
    Cardiac failure 2/219 (0.9%) 2 1/223 (0.4%) 1
    Sinus tachycardia 1/219 (0.5%) 1 0/223 (0%) 0
    Left ventricular dysfunction 2/219 (0.9%) 2 0/223 (0%) 0
    Gastrointestinal disorders
    Abdominal pain 1/219 (0.5%) 1 0/223 (0%) 0
    Abdominal pain upper 1/219 (0.5%) 1 0/223 (0%) 0
    Colitis 3/219 (1.4%) 3 0/223 (0%) 0
    Diarrhoea 9/219 (4.1%) 9 0/223 (0%) 0
    Gastritis 0/219 (0%) 0 1/223 (0.4%) 1
    Gastrointestinal haemorrhage 1/219 (0.5%) 1 0/223 (0%) 0
    Haemorrhoids 1/219 (0.5%) 1 0/223 (0%) 0
    Ileus 0/219 (0%) 0 1/223 (0.4%) 1
    Nausea 1/219 (0.5%) 1 0/223 (0%) 0
    Small intestinal obstruction 1/219 (0.5%) 1 0/223 (0%) 0
    Stomatitis 1/219 (0.5%) 1 0/223 (0%) 0
    Vomiting 4/219 (1.8%) 4 1/223 (0.4%) 1
    General disorders
    Asthenia 1/219 (0.5%) 1 0/223 (0%) 0
    Pyrexia 2/219 (0.9%) 2 0/223 (0%) 0
    Non-cardiac chest pain 0/219 (0%) 0 1/223 (0.4%) 1
    Device related thrombosis 1/219 (0.5%) 1 0/223 (0%) 0
    Hepatobiliary disorders
    Nodular regenerative hyperplasia 0/219 (0%) 0 1/223 (0.4%) 1
    Immune system disorders
    Anaphylactic reaction 1/219 (0.5%) 1 0/223 (0%) 0
    Hypersensitivity 1/219 (0.5%) 1 0/223 (0%) 0
    Infections and infestations
    Bacteraemia 0/219 (0%) 0 1/223 (0.4%) 1
    Breast cellulitis 0/219 (0%) 0 1/223 (0.4%) 1
    Cellulitis 2/219 (0.9%) 2 0/223 (0%) 0
    Clostridium difficile colitis 1/219 (0.5%) 2 0/223 (0%) 0
    Clostridium difficile infection 1/219 (0.5%) 1 0/223 (0%) 0
    Device related infection 1/219 (0.5%) 1 0/223 (0%) 0
    Diarrhoea infectious 1/219 (0.5%) 1 0/223 (0%) 0
    Enterocolitis infectious 1/219 (0.5%) 1 0/223 (0%) 0
    Gastroenteritis 1/219 (0.5%) 1 0/223 (0%) 0
    Gastroenteritis norovirus 1/219 (0.5%) 1 0/223 (0%) 0
    Kidney infection 1/219 (0.5%) 1 0/223 (0%) 0
    Pneumonia 2/219 (0.9%) 2 2/223 (0.9%) 2
    Postoperative wound infection 1/219 (0.5%) 1 0/223 (0%) 0
    Sepsis 2/219 (0.9%) 2 0/223 (0%) 0
    Skin infection 0/219 (0%) 0 1/223 (0.4%) 1
    Subcutaneous abscess 1/219 (0.5%) 1 1/223 (0.4%) 1
    Upper respiratory tract infection 1/219 (0.5%) 1 0/223 (0%) 0
    Wound infection 0/219 (0%) 0 3/223 (1.3%) 3
    Breast abscess 0/219 (0%) 0 1/223 (0.4%) 1
    Injury, poisoning and procedural complications
    Subcutaneous haematoma 1/219 (0.5%) 1 0/223 (0%) 0
    Procedural intestinal perforation 1/219 (0.5%) 1 0/223 (0%) 0
    Seroma 0/219 (0%) 0 1/223 (0.4%) 1
    Investigations
    Lipase increased 0/219 (0%) 0 1/223 (0.4%) 1
    Neutrophil count decreased 3/219 (1.4%) 3 0/223 (0%) 0
    Metabolism and nutrition disorders
    Decreased appetite 1/219 (0.5%) 1 0/223 (0%) 0
    Dehydration 1/219 (0.5%) 1 0/223 (0%) 0
    Hypermagnesaemia 1/219 (0.5%) 1 0/223 (0%) 0
    Hypomagnesaemia 2/219 (0.9%) 2 0/223 (0%) 0
    Musculoskeletal and connective tissue disorders
    Pain in extremity 0/219 (0%) 0 1/223 (0.4%) 1
    Neoplasms benign, malignant and unspecified (incl cysts and polyps)
    Intraductal proliferative breast lesion 0/219 (0%) 0 1/223 (0.4%) 1
    Cervix carinoma 0/219 (0%) 0 1/223 (0.4%) 1
    Neuroendocrine tumour 0/219 (0%) 0 1/223 (0.4%) 1
    Uterine leiomyoma 1/219 (0.5%) 1 0/0 (NaN) 0
    Nervous system disorders
    Headache 1/219 (0.5%) 1 1/223 (0.4%) 1
    Neuropathy peripheral 0/219 (0%) 0 1/223 (0.4%) 1
    Seizure 0/219 (0%) 0 1/223 (0.4%) 1
    Transient ischaemic attack 1/219 (0.5%) 1 0/223 (0%) 0
    Psychiatric disorders
    Anxiety 0/219 (0%) 0 1/223 (0.4%) 1
    Renal and urinary disorders
    Acute kidney injury 0/219 (0%) 0 1/223 (0.4%) 1
    Renal failure 1/219 (0.5%) 1 0/223 (0%) 0
    Reproductive system and breast disorders
    Adenomyosis 1/219 (0.5%) 1 0/223 (0%) 0
    Breast haematoma 0/219 (0%) 0 1/223 (0.4%) 1
    Respiratory, thoracic and mediastinal disorders
    Epistaxis 0/219 (0%) 0 1/223 (0.4%) 3
    Pleural effusion 1/219 (0.5%) 1 0/223 (0%) 0
    Pneumonitis 0/219 (0%) 0 2/223 (0.9%) 2
    Pulmonary embolism 1/219 (0.5%) 1 0/223 (0%) 0
    Respiratory failure 0/219 (0%) 0 1/223 (0.4%) 1
    Bronchiectasis 0/219 (0%) 0 1/223 (0.4%) 1
    Dyspnoea 1/219 (0.5%) 1 0/223 (0%) 0
    Vascular disorders
    Deep vein thrombosis 0/219 (0%) 0 1/223 (0.4%) 1
    Hypertensive crisis 0/219 (0%) 0 1/223 (0.4%) 1
    Shock haemorrhagic 1/219 (0.5%) 1 0/223 (0%) 0
    Other (Not Including Serious) Adverse Events
    TCH + P T-DM1 + P
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 217/219 (99.1%) 212/223 (95.1%)
    Blood and lymphatic system disorders
    Anaemia 81/219 (37%) 103 43/223 (19.3%) 47
    Neutropenia 59/219 (26.9%) 92 13/223 (5.8%) 20
    Thrombocytopenia 24/219 (11%) 36 18/223 (8.1%) 23
    Eye disorders
    Dry eye 14/219 (6.4%) 16 16/223 (7.2%) 16
    Lacrimation increased 18/219 (8.2%) 21 6/223 (2.7%) 9
    Gastrointestinal disorders
    Abdominal pain 30/219 (13.7%) 45 21/223 (9.4%) 29
    Abdominal pain upper 22/219 (10%) 29 7/223 (3.1%) 8
    Constipation 43/219 (19.6%) 48 34/223 (15.2%) 52
    Diarrhoea 163/219 (74.4%) 372 86/223 (38.6%) 179
    Dry mouth 4/219 (1.8%) 4 27/223 (12.1%) 33
    Dyspepsia 15/219 (6.8%) 18 25/223 (11.2%) 30
    Gastrooesophageal reflux disease 16/219 (7.3%) 18 7/223 (3.1%) 8
    Haemorrhoids 14/219 (6.4%) 19 5/223 (2.2%) 5
    Nausea 139/219 (63.5%) 249 103/223 (46.2%) 248
    Stomatitis 49/219 (22.4%) 70 23/223 (10.3%) 30
    Vomiting 68/219 (31.1%) 83 35/223 (15.7%) 47
    Gingival bleeding 1/219 (0.5%) 1 15/223 (6.7%) 17
    General disorders
    Asthenia 61/219 (27.9%) 115 42/223 (18.8%) 73
    Chills 9/219 (4.1%) 9 27/223 (12.1%) 32
    Fatigue 95/219 (43.4%) 143 83/223 (37.2%) 116
    Influenza like illness 10/219 (4.6%) 12 16/223 (7.2%) 21
    Mucosal inflammation 30/219 (13.7%) 37 22/223 (9.9%) 29
    Oedema peripheral 31/219 (14.2%) 38 10/223 (4.5%) 11
    Pyrexia 34/219 (15.5%) 43 38/223 (17%) 53
    Immune system disorders
    Hypersensitivity 11/219 (5%) 17 6/223 (2.7%) 8
    Infections and infestations
    Nasopharyngitis 23/219 (10.5%) 29 29/223 (13%) 34
    Upper respiratory tract infection 15/219 (6.8%) 18 21/223 (9.4%) 24
    Urinary tract infection 17/219 (7.8%) 20 12/223 (5.4%) 16
    Injury, poisoning and procedural complications
    Radiation skin injury 46/219 (21%) 48 21/223 (9.4%) 22
    Investigations
    Alanine aminotransferase increased 24/219 (11%) 37 64/223 (28.7%) 83
    Aspartate aminotransferase increased 21/219 (9.6%) 37 55/223 (24.7%) 74
    Neutrophil count decreased 22/219 (10%) 44 5/223 (2.2%) 6
    Platelet count decreased 26/219 (11.9%) 37 23/223 (10.3%) 38
    Weight decreased 24/219 (11%) 24 18/223 (8.1%) 19
    White blood cell count decreased 17/219 (7.8%) 22 8/223 (3.6%) 11
    Blood bilirubin increased 1/219 (0.5%) 3 20/223 (9%) 28
    Metabolism and nutrition disorders
    Decreased appetite 40/219 (18.3%) 46 33/223 (14.8%) 41
    Hypokalaemia 20/219 (9.1%) 23 13/223 (5.8%) 17
    Hypomagnesaemia 13/219 (5.9%) 13 0/223 (0%) 0
    Musculoskeletal and connective tissue disorders
    Arthralgia 41/219 (18.7%) 55 31/223 (13.9%) 37
    Back pain 20/219 (9.1%) 22 14/223 (6.3%) 20
    Bone pain 17/219 (7.8%) 25 8/223 (3.6%) 8
    Muscle spasms 14/219 (6.4%) 16 20/223 (9%) 21
    Musculoskeletal pain 20/219 (9.1%) 22 10/223 (4.5%) 10
    Myalgia 37/219 (16.9%) 41 28/223 (12.6%) 42
    Pain in extremity 13/219 (5.9%) 16 15/223 (6.7%) 15
    Nervous system disorders
    Dizziness 27/219 (12.3%) 30 22/223 (9.9%) 28
    Dysgeusia 44/219 (20.1%) 58 31/223 (13.9%) 39
    Headache 37/219 (16.9%) 53 68/223 (30.5%) 95
    Hypoaesthesia 19/219 (8.7%) 21 7/223 (3.1%) 9
    Neuropathy peripheral 29/219 (13.2%) 36 21/223 (9.4%) 37
    Paraesthesia 23/219 (10.5%) 28 11/223 (4.9%) 14
    Peripheral sensory neuropathy 26/219 (11.9%) 26 26/223 (11.7%) 27
    Psychiatric disorders
    Depression 16/219 (7.3%) 17 10/223 (4.5%) 10
    Insomnia 31/219 (14.2%) 37 36/223 (16.1%) 40
    Anxiety 14/219 (6.4%) 15 13/223 (5.8%) 15
    Reproductive system and breast disorders
    Breast pain 12/219 (5.5%) 13 17/223 (7.6%) 18
    Respiratory, thoracic and mediastinal disorders
    Cough 21/219 (9.6%) 26 30/223 (13.5%) 38
    Dyspnoea 18/219 (8.2%) 21 18/223 (8.1%) 22
    Epistaxis 24/219 (11%) 31 49/223 (22%) 82
    Oropharyngeal pain 11/219 (5%) 17 10/223 (4.5%) 11
    Rhinorrhoea 12/219 (5.5%) 16 11/223 (4.9%) 14
    Skin and subcutaneous tissue disorders
    Alopecia 146/219 (66.7%) 149 37/223 (16.6%) 38
    Dermatitis acneiform 16/219 (7.3%) 16 12/223 (5.4%) 14
    Dry skin 27/219 (12.3%) 32 30/223 (13.5%) 32
    Nail discolouration 20/219 (9.1%) 21 0/223 (0%) 0
    Nail disorder 11/219 (5%) 13 2/223 (0.9%) 2
    Pruritus 26/219 (11.9%) 34 20/223 (9%) 22
    Rash 57/219 (26%) 77 43/223 (19.3%) 60
    Erythema 8/219 (3.7%) 10 16/223 (7.2%) 18
    Vascular disorders
    Hot flush 45/219 (20.5%) 47 22/223 (9.9%) 25
    Hypertension 15/219 (6.8%) 18 14/223 (6.3%) 14

    Limitations/Caveats

    The reported results are interim only.

    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:
    NCT02131064
    Other Study ID Numbers:
    • BO28408
    • TRIO021
    • 2012-004879-38
    First Posted:
    May 6, 2014
    Last Update Posted:
    Jul 2, 2019
    Last Verified:
    Jun 1, 2019