Metastatic Breast CancerPhase 2KATE2NCT02924883
A Study to Evaluate the Efficacy and Safety of Trastuzumab Emtansine in Combination With Atezolizumab or Atezolizumab-Placebo in Participants With Human Epidermal Growth Factor-2 (HER2) Positive Locally Advanced or Metastatic Breast Cancer (BC) Who Received Prior Trastuzumab and Taxane Based Therapy
A Phase 2 study testing Atezolizumab and Trastuzumab emtansine in people with Metastatic Breast Cancer, run by Hoffmann-La Roche at 68 sites in 9 countries.
Trial summary
This Phase II, double-blind, randomized, placebo-controlled multicenter study will investigate the efficacy and safety of trastuzumab emtansine in combination with atezolizumab or atezolizumab-placebo in participants with HER2-positive locally advanced or metastatic BC who have received prior trastuzumab and taxane… Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Metastatic Breast Cancer
- What is being tested?
- Atezolizumab and Trastuzumab emtansine
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 202 participants
- Where
- 68 sitesin 9 countries
- Study dates
- 26 Sep 2016to 6 Feb 2020
- Phase
- Phase 2
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Archival tumor samples must be obtained from primary and/or metastatic sites
- Able to submit tumor tissue that is evaluable for programmed death- ligand 1 (PD-L1) expression
- HER-2 positive BC as defined by an immunohistochemistry score of 3 or gene amplified by in-situ hybridization as defined by a ratio of greater than or equal to (>=) 2.0 for the number of HER2 gene copies to the number of chromosome 17 copies
- Histologically or cytologically confirmed invasive BC: incurable, unresectable, locally advanced BC previously treated with multimodality therapy or metastatic BC
- Prior treatment for BC in the: adjuvant; unresectable locally advanced; or metastatic settings; which must include both, a taxane and trastuzumab (alone or in combination with another agent)
- Progression must have occurred during or after most recent treatment for locally advanced/metastatic BC or within 6 months after completing adjuvant therapy
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- Participants must have measurable disease that is evaluable as per RECIST v1.1
- Eastern Cooperative Oncology Group Performance Status of 0 or 1
- Negative serum pregnancy test within 7 days of enrollment for pre-menopausal women and for women less than 12 months after the onset of menopause
- Use of highly effective method of contraception as defined by the protocol
Who cannot join
- Prior treatment with trastuzumab emtansine, cluster of differentiation 137 agonists, anti-programmed death-1, or anti-PD-L1 therapeutic antibody or pathway-targeting agents
- Receipt of any anti-cancer drug/biologic or investigational treatment within 21 days prior to Cycle 1 Day 1 except hormone therapy, which can be given up to 7 days prior to Cycle 1 Day 1; recovery of treatment related toxicity consistent with other eligibility criteria
- Radiation therapy within 2 weeks prior to Cycle 1, Day 1
- History of exposure to the cumulative doses of anthracyclines
- History of other malignancy within the previous 5 years, except for appropriately treated carcinoma in situ of the cervix, non-melanoma skin carcinoma, Stage I uterine cancer, or participants who have undergone potentially curative therapy with no evidence of disease and are deemed by the treating physician to be at low risk for recurrence
- Cardiopulmonary dysfunction, symptomatic pleural effusion, pericardial effusion, or ascites
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- Participants with severe infection within 4 weeks prior to randomization, including but not limited to hospitalization for complications of infection, bacteremia, or severe pneumonia
- Current severe, uncontrolled systemic disease
- Major surgical procedure or significant traumatic injury within 28 days prior to randomization or anticipation of the need for major surgery during the course of study treatment
- Clinically significant history of liver disease, including cirrhosis, current alcohol abuse, autoimmune hepatic disorders, sclerosis cholangitis or active infection with human immunodeficiency virus, hepatitis B virus, or hepatitis C virus
- Need for current chronic corticosteroid therapy (>=10 mg of prednisone per day or an equivalent dose of other anti-inflammatory corticosteroids)
- Spinal cord compression not definitively treated with surgery and/or radiation, or previously diagnosed and treated spinal cord compression without evidence that disease has been clinically stable for greater than (>) 2 weeks prior to randomization
- Participants with known central nervous system disease
- Leptomeningeal disease
- History of autoimmune disease
- Prior allogeneic stem cell or solid organ transplantation
- Active tuberculosis
- Receipt of a live, attenuated vaccine within 4 weeks prior to randomization or anticipation that such a live, attenuated vaccine will be required during the study
- Treatment with systemic immunostimulatory agents within 4 weeks or five half-lives of the drug (whichever is shorter) prior to randomization
- Treatment with systemic corticosteroids or other systemic immunosuppressive medications within 2 weeks prior to randomization, or anticipated requirement for systemic immunosuppressive medications during the trial
- Participants who are breastfeeding, or intending to become pregnant during the study
Trial locations and contacts
68 sites in 9 countries.
68 sites in 9 countries
United States15 sites
Northside Hospital
Atlanta, Georgia, 30342
University of Colorado
Aurora, Colorado, 80045
Johns Hopkins Univ Med Center
Baltimore, Maryland, 21231
SCRI Tennessee Oncology Chattanooga
Chattanooga, Tennessee, 37404
Ohio State Uni Medical Center
Columbus, Ohio, 43210
San Juan Oncology Associates
Farmington, New Mexico, 87401
SCRI Florida Cancer Specialists South
Fort Myers, Florida, 33916
Tennessee Oncology; Sarah Cannon Research Institute
Nashville, Tennessee, 37203
Laura and ISAAC Perlmutter Cancer Center at NYU Langone.
New York, New York, 10016
Breastlink Med Group Inc
Orange, California, 92868
Magee Womens Hospital
Pittsburgh, Pennsylvania, 15213
University of Washington
Seattle, Washington, 98195
Florida Cancer Specialists; Saint Petersburg
St. Petersburg, Florida, 33719
MedStar Georgetown University Hospital (Lombardi Comprehensive Cancer Center)
Washington D.C., District of Columbia, 20007
Cancer Care Associates of York
York, Pennsylvania, 17403
United Kingdom9 sites
Royal United Hospital; Oncology Department
Bath, BA1 3NG
Beatson West of Scotland Cancer Centre
Glasgow, G12 0YN
Royal Free Hospital; Dept of Oncology
London, NW3 2QG
Royal Marsden Hosp NHS Fnd; Breast Unit
London, SW3 6JJ
Christie Hospital; Breast Cancer Research Office
Manchester, M20 4QL
Nottingham City Hospital
Nottingham, NG5 1PB
Weston Park Hospital; Cancer Clinical Trials Centre
Sheffield, S10 2SJ
Royal Marsden Hosp NHS Fnd; Medicine - Breast Unit
Sutton, SM2 5PT
Singleton Hospital; Pharmacy
Swansea, SA2 8QA
Taiwan8 sites
Changhua Christian Hospital; Dept of Surgery
Changhua, 500
Kaohsiung Medical Uni Chung-Ho Hospital; Dept of Surgery
Kaohsiung City, 807
China Medical University Hospital; Surgery
Taichung, 404
Chi-Mei Medical Center
Tainan, 736
VETERANS GENERAL HOSPITAL; Department of General Surgery
Taipei, 00112
National Taiwan Uni Hospital; General Surgery
Taipei, 100
Koo Foundation Sun Yat-Sen Cancer Center; Hemato-Oncology
Taipei, 11259
Chang Gung Memorial Hospital - Linkou
Taoyuan, 333
Australia7 sites
Peter MacCallum Cancer Center
East Melbourne, Victoria, 3002
Peninsula and South Eastern Haematology and Oncology Group
Frankston, Victoria, 3199
St George Hospital; Cancer Care Centre
Kogarah, New South Wales, 2217
Sunshine Hospital
St Albans, Victoria, 3021
St John of God Hospital; Bendat Cancer Centre
Subiaco, Western Australia, 6008
Calvary Mater Newcastle
Waratah, New South Wales, 2298
Princess Alexandra Hospital Woolloongabba; Clinical Hematology and Medical Oncology
Woolloongabba, Queensland, 4102
Canada6 sites
McGill University; Sir Mortimer B Davis Jewish General Hospital; Oncology
Montreal, Quebec, H3T 1E2
McGill University; Glen Site; Oncology
Montreal, Quebec, H4A 3J1
Lakeridge Health Oshawa; Oncology
Oshawa, Ontario, L1G 2B9
The Ottawa Hospital Cancer Centre; Oncology
Ottawa, Ontario, K1H 8L6
Hopital du Saint Sacrement
Québec, Quebec, G1S 4L8
Sunnybrook Odette Cancer Centre
Toronto, Ontario, M4N 3M5
Germany6 sites
HELIOS Klinikum Berlin-Buch; Klinik für Gynäkologie und Geburtshilfe
Berlin, 13125
Studienzentrum Berlin City
Berlin, 14169
Klinikum Essen-Mitte Ev. Huyssens-Stiftung / Knappschafts GmbH; Klinik für Senologie / Brustzentrum
Essen, 45136
Praxis für Interdisziplinäre Onkologie und Hämatologie GbR
Freiburg im Breisgau, 79110
Nationales Centrum für Tumorerkrankungen (NCT) ; Gyn. Onk. Frauenklinik; Uniklinikum Heidelberg
Heidelberg, 69120
Institut für Versorgungsforschung in der Onkologie GbR Koblenz
Koblenz, 56068
Italy6 sites
Centro Di Riferimento Oncologico; SOC Oncologia Medica C
Aviano, Friuli Venezia Giulia, 33081
A.O.U Policlinico S. Orsola Malpighi di Bologna U.O di Medicina Interna Borghi - Pad.2
Bologna, Emilia-Romagna, 40138
Centro Catanese Di Oncologia; Oncologia Medica
Catania, Sicily, 95126
IRCCS Istituto Nazionale Tumori Fondazione Pascale; Oncologia Medica A
Naples, Campania, 80131
Ospedale Regionale Di Parma; Divisione Di Oncologia Medica
Parma, Emilia-Romagna, 43100
Ospedale Santo Stefano, Azienda USL Centro Prato
Prato, Tuscany, 59100
Spain6 sites
Complejo Hospitalario Universitario A Coruña (CHUAC, Materno Infantil), Oncología
A Coruña, 15006
Hospital Univ Vall d'Hebron; Servicio de Oncologia
Barcelona, 08035
Hospital Universitario Reina Sofia; Servicio de Oncologia
Córdoba, Cordoba, 14004
Hospital Ramon y Cajal; Servicio de Oncologia
Madrid, 28034
Hospital Clinico Universitario de Valencia; Servicio de Onco-hematologia
Valencia, 46010
Hospital Arnau de Vilanova (Valencia) Servicio de Oncologia
Valencia, 46015
South Korea5 sites
National Cancer Center
Goyang-si, 10408
Samsung Medical Center
Seoul, (0)6351
Seoul National University Hospital
Seoul, 03080
Severance Hospital, Yonsei University Health System
Seoul, 03722
Asan Medical Center
Seoul, 05505
About this study
Official title: A Randomized, Multicenter, Double-Blind, Placebo-Controlled Phase II Study of the Efficacy and Safety of Trastuzumab Emtansine in Combination With Atezolizumab or Atezolizumab-Placebo in Patients With HER2-Positive Locally Advanced or Metastatic Breast Cancer Who Have Received Prior Trastuzumab and Taxane Based Therapy
This Phase II, double-blind, randomized, placebo-controlled multicenter study will investigate the efficacy and safety of trastuzumab emtansine in combination with atezolizumab or atezolizumab-placebo in participants with HER2-positive locally advanced or metastatic BC who have received prior trastuzumab and taxane based therapy, either alone or in combination, and/or who have progressed within 6 months after completing adjuvant therapy.
- Conditions
- Metastatic Breast Cancer
- Being tested
- Atezolizumab, Trastuzumab emtansine, Placebo
- Medical subject headings
- Breast Neoplasms
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
AtezolizumabDrug
Also called Tecentriq, RO5541267, MPDL3280A
Atezolizumab 1200 mg IV infusion
Trastuzumab emtansineDrug
Also called Kadcyla®, T-DM1, RO5304020
Trastuzumab emtansine 3.6 mg/kg IV infusion
PlaceboOther
Placebo matched to atezolizumab
| Study group | Role | What they receive |
|---|---|---|
| Trastuzumab Emtansine + Atezolizumab | Experimental | Atezolizumab 1200 milligrams (mg) intravenous (IV) infusion or matching Placebo followed by trastuzumab emtansine 3.6 milligrams per kilogram (mg/kg) IV infusion on Day 1 Cycle 1 and thereafter on Day 1 of each 21-day cycle until disease progression, unmanageable toxicity, or study termination by the Sponsor (approximately 29 months) Receives: Drug: Atezolizumab; Drug: Trastuzumab emtansine; Other: Placebo |
| Trastuzumab Emtansine + Placebo | Active comparator | Placebo matched to atezolizumab followed by trastuzumab emtansine 3.6 mg/kg IV infusion on Day 1 Cycle 1 and thereafter on Day 1 of each 21-day cycle until disease progression, unmanageable toxicity, or study termination by the sponsor (approximately 29 months) Receives: Drug: Trastuzumab emtansine; Other: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Progression-Free Survival (PFS) as Determined by Investigator's Tumor Assessment Using Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1 (v1.1)
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 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.
Measured: Baseline up to approximately 15 months
Percentage of Participants With Adverse Events
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.
Measured: Baseline up to study completion, approximately 40 months
Secondary outcomes (9)
Overall Survival (OS)
OS was defined as the time from randomization to death from any cause.
Measured: Baseline up to study completion or death, whichever occurs first, approximately 40 months
Percentage of Participants With Objective Response (OR) as Determined by Investigator's Tumor Assessment Using RECIST v1.1
An OR was defined as a complete or partial response determined on 2 consecutive occasions ≥ 4 weeks apart using Response Evaluation Criteria in Solid Tumors (RECIST) v1.1. Complete response was defined as the disappearance of all target and non-target lesions. Any pathological lymph nodes (whether target or non-target) must be < 10 mm on the short axis. Partial response was defined as at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum. Participants who had no post-baseline tumor assessment were counted as non-responders.
Measured: Baseline up to approximately 15 months
Duration of OR as Determined by Investigator's Tumor Assessment Using RECIST v1.1
Duration of OR was defined as the time from the first tumor assessment that was judged to indicate that the patient had an objective response to the time of first documented disease progression using RECIST v1.1 per investigator assessment or death from any cause, whichever occurred first.
Measured: Baseline up to approximately 15 months
Maximum Serum Concentration (Cmax) of Trastuzumab Emtansine
Average post infusion Trastuzumab Emtansine concentration
Measured: Pre-infusion (0 hour [h]), 30 minutes (min) after end of infusion (EOI) (over 90 min) on Day 1 Cycles 1 and 4; pre-infusion (0 h) on Day 1 Cycle 2 (each cycle = 21 days); at any time during study treatment/early discontinuation visit (approx. 40 months)
Cmax of Deacetyl Mercapto 1-Oxopropyl Maytansine (DM1)
Average post infusion Deacetyl Mercapto 1-Oxopropyl Maytansine concentration of trastuzumab emtansine infusion
Measured: Pre-infusion (0 h) on Day 1 Cycle 1 and 30 min after EOI (over 90 min) on Day 1 Cycles 1 and 4 (each cycle = 21 days)
Cmax of Total Trastuzumab
Measured: Pre-infusion (0 h), 30 min after EOI (over 90 min) on Day 1 Cycles 1 and 4; pre-infusion (0 h) on Day 1 Cycle 2 (each cycle = 21 days)
Cmax of Atezolizumab
Average post infusion atezolizumab concentration
Measured: Pre-infusion (0 h), 30 min after EOI (over 60 min) on Day 1 Cycles 1 and 4; pre-infusion (0 h) on Day 1 Cycles 2, 3, 8, and every 8 cycles thereafter (each cycle=21 days) up to 120 days after treatment completion/early discontinuation (approx. 40 months)
Percentage of Participants With Anti-therapeutic Antibodies (ATAs) to Atezolizumab
ATAs are antibodies that inactivate the therapeutic effects of Atezolizumab. Patients are considered to be ATA positive if they are ATA negative at baseline but develop an ATA response following study drug administration (treatment-induced ATA response), or if they are ATA positive at baseline and the titer of one or more post-baseline samples is at least 4-fold greater (i.e., ≥ 0.60 titer units) than the titer of the baseline sample (treatment-enhanced ATA response).
Measured: Pre-infusion (0 h) on Day 1 Cycles 1, 2, 3, 4, 8, and every 8 cycles thereafter (each cycle = 21 days) up to 120 days after treatment completion or early discontinuation (approximately 40 months)
Percentage of Participants With ATAs to Trastuzumab Emtansine
ATAs are antibodies that inactivate the therapeutic effects of Trastuzumab Emtansine. Patients are considered to be ATA positive if they are ATA negative at baseline but develop an ATA response following study drug administration (treatment-induced ATA response), or if they are ATA positive at baseline and the titer of one or more post-baseline samples is at least 4-fold greater (i.e., ≥ 0.60 titer units) than the titer of the baseline sample (treatment-enhanced ATA response).
Measured: Pre-infusion (0 h) on Day 1 Cycles 1 and 4 (each cycle = 21 days); and at any time during study treatment/early discontinuation visit (approximately 40 months)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted5 Oct 2016 (estimated)
- Study start26 Sep 2016
- Primary completion11 Dec 2017
- Study completion6 Feb 2020
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Metastatic Breast CancerStudies of the same condition, open and under way.
- More trials run by Hoffmann-La RocheThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 202 participants (actual)
Sponsor and investigators
- Lead sponsor
- Hoffmann-La Roche
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Clinical Trials, Study director, Hoffmann-La Roche
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02924883
- Sponsor's protocol ID
- WO30085
- Other IDs
- 2015-004189-27, 2015
- Acronym
- KATE2
- Status last verified
- Jan 2021
- First submitted
- 21 Sep 2016
- Last updated
- 17 Feb 2021
- Results posted
- Yes, on ClinicalTrials.gov
Publications
Emens LA, Esteva FJ, Beresford M, Saura C, De Laurentiis M, Kim SB, Im SA, Wang Y, Salgado R, Mani A, Shah J, Lambertini C, Liu H, de Haas SL, Patre M, Loi S. Trastuzumab emtansine plus atezolizumab versus trastuzumab emtansine plus placebo in previously treated, HER2-positive advanced breast cancer (KATE2): a phase 2, multicentre, randomised, double-blind trial. Lancet Oncol. 2020 Oct;21(10):1283-1295. doi: 10.1016/S1470-2045(20)30465-4.
PubMed 33002436
Study at a glance
From the registry record, last updated by the sponsor on 17 Feb 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Randomized, Multicenter, Double-Blind, Placebo-Controlled Phase II Study of the Efficacy and Safety of Trastuzumab Emtansine in Combination With Atezolizumab or Atezolizumab-Placebo in Patients With HER2-Positive Locally Advanced or Metastatic Breast Cancer Who Have Received Prior Trastuzumab and Taxane Based Therapy
- ClinicalTrials.gov ID
- NCT02924883
- Acronym / sponsor ID
- KATE2 / WO30085
- Conditions
- Metastatic Breast Cancer
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 202 participants (actual)
- Lead sponsor
- Hoffmann-La RocheIndustry (pharma, biotech, devices)
- Study start
- 26 Sep 2016 (actual)
- Primary completion
- 11 Dec 2017 (actual)
- Study completion
- 6 Feb 2020 (actual)
- First posted
- 5 Oct 2016 (estimated)
- Results
- Posted 12 Feb 2019
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This Phase II, double-blind, randomized, placebo-controlled multicenter study will investigate the efficacy and safety of trastuzumab emtansine in combination with atezolizumab or atezolizumab-placebo in participants with HER2-positive locally advanced or metastatic BC who have received prior trastuzumab and taxane based therapy, either alone or in combination, and/or who have progressed within 6 months after completing adjuvant therapy.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, investigator)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Trastuzumab Emtansine + Atezolizumab | Experimental | Drug: Atezolizumab, Drug: Trastuzumab emtansine, Other: PlaceboAtezolizumab 1200 milligrams (mg) intravenous (IV) infusion or matching Placebo followed by trastuzumab emtansine 3.6 milligrams per kilogram (mg/kg) IV infusion on Day 1 Cycle 1 and thereafter on Day 1 of each 21-day cycle until disease progression, unmanageable toxicity, or study termination by the Sponsor (approximately 29 months) |
| Trastuzumab Emtansine + Placebo | Active comparator | Drug: Trastuzumab emtansine, Other: PlaceboPlacebo matched to atezolizumab followed by trastuzumab emtansine 3.6 mg/kg IV infusion on Day 1 Cycle 1 and thereafter on Day 1 of each 21-day cycle until disease progression, unmanageable toxicity, or study termination by the sponsor (approximately 29 months) |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (10 listed)
- Archival tumor samples must be obtained from primary and/or metastatic sites
- Able to submit tumor tissue that is evaluable for programmed death- ligand 1 (PD-L1) expression
- HER-2 positive BC as defined by an immunohistochemistry score of 3 or gene amplified by in-situ hybridization as defined by a ratio of greater than or equal to (>=) 2.0 for the number of HER2 gene copies to the number of chromosome 17 copies
- Histologically or cytologically confirmed invasive BC: incurable, unresectable, locally advanced BC previously treated with multimodality therapy or metastatic BC
- Prior treatment for BC in the: adjuvant; unresectable locally advanced; or metastatic settings; which must include both, a taxane and trastuzumab (alone or in combination with another agent)
Key exclusion criteria (21 listed)
- Prior treatment with trastuzumab emtansine, cluster of differentiation 137 agonists, anti-programmed death-1, or anti-PD-L1 therapeutic antibody or pathway-targeting agents
- Receipt of any anti-cancer drug/biologic or investigational treatment within 21 days prior to Cycle 1 Day 1 except hormone therapy, which can be given up to 7 days prior to Cycle 1 Day 1; recovery of treatment related toxicity consistent with other eligibility criteria
- Radiation therapy within 2 weeks prior to Cycle 1, Day 1
- History of exposure to the cumulative doses of anthracyclines
- History of other malignancy within the previous 5 years, except for appropriately treated carcinoma in situ of the cervix, non-melanoma skin carcinoma, Stage I uterine cancer, or participants who have undergone potentially curative therapy with no evidence of disease and are deemed by the treating physician to be at low risk for recurrence
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| AtezolizumabAlso: Tecentriq, RO5541267, MPDL3280AAtezolizumab 1200 mg IV infusion | Drug | Trastuzumab Emtansine + Atezolizumab |
| Trastuzumab emtansineAlso: Kadcyla®, T-DM1, RO5304020Trastuzumab emtansine 3.6 mg/kg IV infusion | Drug | Trastuzumab Emtansine + Atezolizumab, Trastuzumab Emtansine + Placebo |
| PlaceboPlacebo matched to atezolizumab | Other | Trastuzumab Emtansine + Atezolizumab, Trastuzumab Emtansine + Placebo |
Primary outcome
Progression-Free Survival (PFS) as Determined by Investigator's Tumor Assessment Using Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1 (v1.1)
Time frame: Baseline up to approximately 15 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 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.
Percentage of Participants With Adverse Events
Time frame: Baseline up to study completion, approximately 40 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.
9 secondary outcomes
Overall Survival (OS)
Time frame: Baseline up to study completion or death, whichever occurs first, approximately 40 months
Percentage of Participants With Objective Response (OR) as Determined by Investigator's Tumor Assessment Using RECIST v1.1
Time frame: Baseline up to approximately 15 months
Duration of OR as Determined by Investigator's Tumor Assessment Using RECIST v1.1
Time frame: Baseline up to approximately 15 months
Maximum Serum Concentration (Cmax) of Trastuzumab Emtansine
Time frame: Pre-infusion (0 hour [h]), 30 minutes (min) after end of infusion (EOI) (over 90 min) on Day 1 Cycles 1 and 4; pre-infusion (0 h) on Day 1 Cycle 2 (each cycle = 21 days); at any time during study treatment/early discontinuation visit (approx. 40 months)
Cmax of Deacetyl Mercapto 1-Oxopropyl Maytansine (DM1)
Time frame: Pre-infusion (0 h) on Day 1 Cycle 1 and 30 min after EOI (over 90 min) on Day 1 Cycles 1 and 4 (each cycle = 21 days)
Cmax of Total Trastuzumab
Time frame: Pre-infusion (0 h), 30 min after EOI (over 90 min) on Day 1 Cycles 1 and 4; pre-infusion (0 h) on Day 1 Cycle 2 (each cycle = 21 days)
Cmax of Atezolizumab
Time frame: Pre-infusion (0 h), 30 min after EOI (over 60 min) on Day 1 Cycles 1 and 4; pre-infusion (0 h) on Day 1 Cycles 2, 3, 8, and every 8 cycles thereafter (each cycle=21 days) up to 120 days after treatment completion/early discontinuation (approx. 40 months)
Percentage of Participants With Anti-therapeutic Antibodies (ATAs) to Atezolizumab
Time frame: Pre-infusion (0 h) on Day 1 Cycles 1, 2, 3, 4, 8, and every 8 cycles thereafter (each cycle = 21 days) up to 120 days after treatment completion or early discontinuation (approximately 40 months)
Percentage of Participants With ATAs to Trastuzumab Emtansine
Time frame: Pre-infusion (0 h) on Day 1 Cycles 1 and 4 (each cycle = 21 days); and at any time during study treatment/early discontinuation visit (approximately 40 months)
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 17 Feb 2021.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 33002436Emens LA, Esteva FJ, Beresford M, Saura C, De Laurentiis M, Kim SB, Im SA, Wang Y, Salgado R, Mani A, Shah J, Lambertini C, Liu H, de Haas SL, Patre M, Loi S. Trastuzumab emtansine plus atezolizumab versus trastuzumab emtansine plus placebo in previously treated, HER2-positive advanced breast cancer (KATE2): a phase 2, multicentre, randomised, double-blind trial. Lancet Oncol. 2020 Oct;21(10):1283-1295. doi: 10.1016/S1470-2045(20)30465-4.
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RecruitingPhase 1/2
A Study Evaluating the Efficacy and Safety of Multiple Treatment Combinations in Patients With Metastatic or Locally Advanced Breast Cancer
Metastatic Breast Cancer
RecruitingObservational study
Collection of CSF Samples From Participants With Metastatic Triple Negative Breast Cancer (TNBC) and HER2+ Breast Cancer With no Prior History Nor Active Radiographically Detectable Brain Metastases
Breast Cancer, Breast Carcinoma
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Clinical Trials study director
Hoffmann-La Roche
68 sites in 9 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing Atezolizumab and Trastuzumab emtansine in people with Metastatic Breast Cancer, run by Hoffmann-La Roche at 68 sites in 9 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 10 inclusion and 21 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 17 Feb 2021. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 68 sites in United States, United Kingdom, Taiwan, Australia, Canada and 4 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 12 Feb 2019). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Progression-Free Survival (PFS) as Determined by Investigator's Tumor Assessment Using Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.1 (v1.1) (time frame: Baseline up to approximately 15 months). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT02924883, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 Feb 2021.