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A Study to Evaluate the Efficacy and Safety of Trastuzumab Emtansine Versus the Combination of Trastuzumab Plus Docetaxel in Patients With HER2-positive Breast Cancer

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ClinicalTrials.gov Identifier: NCT02144012
Recruitment Status : Terminated
First Posted : May 21, 2014
Results First Posted : March 7, 2017
Last Update Posted : March 7, 2017
Sponsor:
Information provided by (Responsible Party):
Hoffmann-La Roche

Brief Summary:
This is a Phase III, randomized, multicenter, multinational, two-arm, open-label clinical trial to investigate a first-line treatment of participants with human epidermal growth factor receptor-2 (HER2)-positive metastatic breast cancer. The study will enroll patients with HER2-positive, unresectable, locally advanced breast cancer (BC) if they have recurrent disease or progressive disease (PD) despite primary multi-modality therapy, and/or metastatic BC if they have not received prior chemotherapy for their metastatic disease. Eligible participants at up to approximately 40 sites in the Asia-Pacific region will be randomized in a 2:1 ratio to receive trastuzumab emtansine (Arm A) or trastuzumab plus docetaxel (Arm B). All study drugs will be administered at in-clinic visits occurring every three weeks during the treatment phase. Trastuzumab plus docetaxel was chosen as the comparator in the control group (Arm B), as it represents a common first-line treatment option used in this patient population in China and other Asia-Pacific countries.

Condition or disease Intervention/treatment Phase
Metastatic Breast Cancer Drug: Trastuzumab Drug: Trastuzumab Emtansine Drug: Docetaxel Phase 3

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 49 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Randomized, Multicenter, Open-Label Phase III Study to Evaluate the Efficacy and Safety of Trastuzumab Emtansine Versus the Combination of Trastuzumab Plus Docetaxel as First-Line Treatment of Patients With Her2-Positive Progressive Or Recurrent Locally Advanced Or Metastatic Breast Cancer.
Study Start Date : June 2014
Actual Primary Completion Date : January 2016
Actual Study Completion Date : January 2016

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Breast Cancer

Arm Intervention/treatment
Experimental: Arm A: Trastuzumab emtansine
Participants will be administered trastuzumab emtansine once every three weeks (Q3W). Participants may remain on study treatment until investigator assessed disease progression, unacceptable toxicity, or Sponsor study termination occurs, whichever occurs first.
Drug: Trastuzumab Emtansine
Trastuzumab emtansine 3.6 milligrams/kilogram (mg/kg) was administered intravenously (IV) over 30-90 minutes Q3W.
Other Name: Kadcyla

Active Comparator: Arm B: Trastuzumab + Docetaxel
Participants will be administered trastuzumab plus docetaxel Q3W. Participants may remain on study treatment until investigator assessed disease progression, unacceptable toxicity, or Sponsor study termination occurs, whichever occurs first.
Drug: Trastuzumab
For the first three-week cycle, trastuzumab was administered IV at 8 mg/kg. For subsequent cycles, trastuzumab was administered IV at 6 mg/kg Q3W.
Other Name: Herceptin

Drug: Docetaxel
Docetaxel was administered IV at either 75 milligrams/square meter (mg/m^2) or 100 mg/m^2 Q3W.




Primary Outcome Measures :
  1. Progression-Free Survival (PFS) [ Time Frame: At time of clinical data cut-off (up to 20 months) ]
    PFS was defined as the time from randomization to the first occurrence of disease progression or death from any cause, whichever occurred first, on the basis of investigator assessments. Progression was defined according to Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 as at least a 20% increase in the sum of diameters of target lesions with an absolute increase of at least 5 millimeter (mm) or the appearance of one or more new lesions.

  2. Safety: Percentage of Participants With Adverse Events (AEs) [ Time Frame: At time of clinical data cut-off (up to 20 months) ]
    An adverse event is any untoward medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with the treatment. An adverse event can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a pharmaceutical product, whether or not considered related to the pharmaceutical product. Preexisting conditions which worsen during a study are also considered as adverse events.

  3. Safety: Percentage of Participants With Grade 3 and 4 AEs [ Time Frame: At time of clinical data cut-off (up to 20 months) ]
    Grade 3 and 4 AEs were evaluated according to National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) v4.0. Grade 3 was defined as severe or medically significant but not immediately life-threatening; hospitalization or prolongation of hospitalization indicated; disabling; limiting self care activities of daily living, including bathing, dressing and undressing, feeding self, using the toilet, taking medications, and not bedridden. Grade 4 was defined as life-threatening consequences; urgent intervention indicated.

  4. Percentage of Participants With Adverse Events Leading to Treatment Discontinuation [ Time Frame: At time of clinical data cut-off (up to 20 months) ]
  5. Safety: Percentage of Participants With Adverse Events Leading to Treatment Interruption [ Time Frame: At time of clinical data cut-off (up to 20 months) ]
  6. Safety: Percentage of Participants With Adverse Events Leading to Dose Reduction [ Time Frame: At time of clinical data cut-off (up to 20 months) ]
  7. Safety: Percentage of Participants With Significant Decline in Left Ventricular Ejection Fraction (LVEF) [ Time Frame: At time of clinical data cut-off (up to 20 months) ]
    Significant decline in LVEF was defined as LVEF below 50% and decrease from baseline of 15% points or more. Echocardiogram or multiple-gated acquisition (MUGA) scan was used to assess LVEF.


Secondary Outcome Measures :
  1. Overall Survival (OS) [ Time Frame: At time of clinical data cut-off (up to 20 months) ]
    OS was defined as the time from the date of randomization to the date of death from any cause.

  2. One-Year Survival Rate [ Time Frame: At 12 months ]
    One-year survival rate as determined by Kaplan-Meier estimates.

  3. OS Truncated at 2 Years [ Time Frame: At 24 months ]
    OS truncated at 2 years was defined as the time from the date of randomization to the date of death from any cause, with deaths occurring beyond 2 years after the participant's randomization date censored at 2 years.

  4. Objective Response Rate (ORR) [ Time Frame: At time of clinical data cut-off (up to 20 months) ]
    ORR was defined as percentage of participants with partial response (PR) or complete response (CR) determined on the basis of investigator assessments with the use of RECIST v1.1. Tumor assessments were performed with computed tomography (CT) or magnetic resonance imaging (MRI) scans of the chest, abdomen, and pelvis. CR: disappearance of all target lesions; PR: >=30% decrease in the sum of the longest diameter of target lesions; Objective Response Rate (OR) = CR + PR.

  5. Duration of Response (DOR) [ Time Frame: At time of clinical data cut-off (up to 20 months) ]
    DOR was defined as the time from the date of initial confirmed PR or CR to the date of disease progression or death within the study. CR: disappearance of all target lesions; PR: >=30% decrease in the sum of the longest diameter of target lesions. Disease progression was defined according to RECIST, v1.1 as at least a 20% increase in the sum of diameters of target lesions with an absolute increase of at least 5 mm or the appearance of one or more new lesions.

  6. Pharmacokinetics: Serum Concentrations of Study Medications [ Time Frame: Day 1, Cycle 1 (Day 1), Day 1, Cycle 2 (Day 22), Day 1, Cycle 4 (Day 64) and at study drug completion or discontinuation visit (up to 20 months) ]
    Pharmacokinetic (PK) parameters were to be determined in a subset of participants. PK samples from the first 100 Chinese participants were planned to be collected.

  7. Immunogenicity: Percentage of Positive Anti-Therapeutic Antibody (ATA) Response to Trastuzumab Emtansine [ Time Frame: Day 1, Cycle 1 (Day 1), Day 1, Cycle 4 (Day 64) and at study drug completion or discontinuation visit (up to 20 months) ]
  8. Patient-Reported Outcomes: Number of Participants Who Completed the Functional Assessment of Cancer Therapy-Breast Cancer (FACT-B) Questionnaire [ Time Frame: On the first Day of each 21-day Cycle (Day 1, 22, 43, etc.) and at study drug completion or discontinuation visit (up to 20 months) ]
    The FACT-B (version 4) is a self-reported instrument which measures health-related quality of life (HRQOL) of participants with breast cancer.The FACT-B includes the breast cancer sub-scale (BCS) and is comprised of nine items specific to assessing patients' HRQOL in breast cancer.

  9. Patient-Reported Outcomes: Number of Participants Who Completed the FACT-Taxane Questionnaire [ Time Frame: Days 1 and 8 of Cycles 1 and 2 and on the first day of each subsequent 21-day cycle thereafter as well as at study drug completion or discontinuation visit (up to 20 months) ]
    The FACT - Taxane is a self-reported instrument which measures the HRQOL of participants receiving taxane containing chemotherapy. The FACT-Taxane consists of 16 items and was designed to assess the impact of taxane treatment-related symptoms from the participant's perspective.



Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Age >/= 18 years
  • HER2-positive disease, as defined by an immunohistochemistry test score of 3+ and/or in situ hybridization positivity, prospectively confirmed by a Sponsor-designated central laboratory prior to enrollment
  • Histologically or cytologically confirmed adenocarcinoma of the breast with locally recurrent or metastatic disease appropriate for chemotherapy
  • Patients must have measurable and/or non-measurable disease that is evaluable per the Response Evaluation Criteria in Solid Tumors (RECIST) criteria, version 1.1
  • Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1
  • Adequate organ function
  • For women of childbearing potential and men with partners of childbearing potential, agreement by the patient and/or partner to use two adequate non-hormonal forms of contraception during treatment and for at least 6 months after the last dose of study drug

Exclusion Criteria:

  • Pregnancy or lactation
  • Current severe, uncontrolled systemic disease (e.g., clinically significant cardiovascular, pulmonary, or metabolic disease; wound healing disorders; ulcers; bone fractures, except bone fractures because of disease under study)
  • Currently known active infection with HIV, hepatitis B virus (HBV), or hepatitis C virus (HCV)
  • Major surgical procedure or significant traumatic injury within approximately 28 days prior to randomization or anticipation of the need for major surgery during the course of study treatment
  • Current peripheral neuropathy Grade >/= 2 per National Cancer Institute Common Terminology Criteria for Adverse Events, Version 4.0 (NCI CTCAE, v4.0)
  • History of systemic anti-cancer therapy after the diagnosis of metastatic breast cancer (MBC) or for recurrent locally advanced disease, with the exception of prior hormonal regimens for recurrent locally advanced disease or MBC
  • An interval of < 12 months after the last dose of vinca alkaloid or taxane chemotherapy (i.e., for treatment of early stage, non-metastatic disease)
  • Hormonal therapy < 7 days prior to randomization
  • Trastuzumab < 21 days prior to randomization
  • Lapatinib </= 14 days prior to randomization
  • Prior trastuzumab emtansine therapy
  • Treatment with any other anti-cancer therapy/investigational drug (not defined above) within 21 days prior to randomization
  • History of other malignancy within the last 5 years, except for appropriately treated carcinoma in situ of the cervix, non-melanoma skin carcinoma, Stage I uterine cancer, or other malignancies with an expected curative outcome
  • Current chronic daily treatment with corticosteroids (dose > 10 mg/day methylprednisone equivalent)
  • History of intolerance (including Grade 3 or 4 infusion reaction) or hypersensitivity to trastuzumab, murine proteins, docetaxel or paclitaxel
  • Known hypersensitivity any of the study drugs, including excipients, or any drugs formulated in polysorbate 80

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02144012


Locations
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Korea, Republic of
Daegu, Korea, Republic of, 702-210
Gyeonggi-do, Korea, Republic of, 410-769
Seoul, Korea, Republic of, 05505
Malaysia
Sabah, Malaysia, 88996
Taiwan
Taipei, Taiwan, 00112
Taipei, Taiwan, 100
Taoyuan, Taiwan, 333
Thailand
Bangkok, Thailand, 10330
Sponsors and Collaborators
Hoffmann-La Roche
Investigators
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Study Director: Clinical Trials Hoffmann-La Roche

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Responsible Party: Hoffmann-La Roche
ClinicalTrials.gov Identifier: NCT02144012     History of Changes
Other Study ID Numbers: YO28405
First Posted: May 21, 2014    Key Record Dates
Results First Posted: March 7, 2017
Last Update Posted: March 7, 2017
Last Verified: January 2017

Additional relevant MeSH terms:
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Breast Neoplasms
Neoplasms by Site
Neoplasms
Breast Diseases
Skin Diseases
Docetaxel
Trastuzumab
Maytansine
Ado-trastuzumab emtansine
Antineoplastic Agents
Tubulin Modulators
Antimitotic Agents
Mitosis Modulators
Molecular Mechanisms of Pharmacological Action
Antineoplastic Agents, Immunological
Antineoplastic Agents, Phytogenic