Description:
The purpose of this study is to evaluate the safety, efficacy, and pharmacokinetics of
tiragolumab in combination with atezolizumab and chemotherapy in participants with metastatic
and early triple-negative breast cancer (TNBC).
Title
- Brief Title: A Study of the Safety, Efficacy, and Pharmacokinetics of Tiragolumab in Combination With Atezolizumab and Chemotherapy in Participants With Triple-Negative Breast Cancer
- Official Title: A Phase Ib, Open-Label, Multicohort Study of the Safety, Efficacy, and Pharmacokinetics of Tiragolumab in Combination With Atezolizumab and Chemotherapy in Patients With Triple-Negative Breast Cancer
Clinical Trial IDs
- ORG STUDY ID:
CO42177
- SECONDARY ID:
2020-000531-47
- NCT ID:
NCT04584112
Conditions
- Triple-Negative Breast Cancer
Interventions
Drug | Synonyms | Arms |
---|
Tiragolumab | | Cohort A: Tiragolumab and Atezolizumab + Nab-paclitaxel |
Atezolizumab | Tecentriq | Cohort A: Tiragolumab and Atezolizumab + Nab-paclitaxel |
Nab-paclitaxel | Abraxane | Cohort A: Tiragolumab and Atezolizumab + Nab-paclitaxel |
Tiragolumab | | Cohort B: Tiragolumab and Atezolizumab + Nab-pac-AC |
Atezolizumab | Tecentriq | Cohort B: Tiragolumab and Atezolizumab + Nab-pac-AC |
Nab-paclitaxel | Abraxane | Cohort B: Tiragolumab and Atezolizumab + Nab-pac-AC |
Carboplatin | | Cohort B: Tiragolumab and Atezolizumab + Nab-pac-carbo-AC |
Doxorubicin | Lipodox, Doxil | Cohort B: Tiragolumab and Atezolizumab + Nab-pac-AC |
Cyclophosphamide | | Cohort B: Tiragolumab and Atezolizumab + Nab-pac-AC |
Granulocyte colony-stimulating factor (G-CSF) | filgrastim, pegfilgrastim | Cohort B: Tiragolumab and Atezolizumab + Nab-pac-AC |
Granulocyte-macrophage colony-stimulating factor (GM-CSF) | | Cohort B: Tiragolumab and Atezolizumab + Nab-pac-AC |
Purpose
The purpose of this study is to evaluate the safety, efficacy, and pharmacokinetics of
tiragolumab in combination with atezolizumab and chemotherapy in participants with metastatic
and early triple-negative breast cancer (TNBC).
Trial Arms
Name | Type | Description | Interventions |
---|
Cohort A: Tiragolumab and Atezolizumab + Nab-paclitaxel | Experimental | Participants with first-line metastatic TNBC will receive tiragolumab and atezolizumab on Day 1 of every 28-day cycle plus nab-paclitaxel on Days 1, 8, and 15 of every 28-day cycle. | - Tiragolumab
- Atezolizumab
- Nab-paclitaxel
|
Cohort B: Tiragolumab and Atezolizumab + Nab-pac-carbo-AC | Experimental | Participants with early TNBC in the neoadjuvant setting, who are eligible for surgery, will receive tiragolumab and atezolizumab every 2 weeks (Q2W) in combination with nab-paclitaxel weekly (QW) and carboplatin every 3 weeks (Q3W) for four cycles, followed by tiragolumab and atezolizumab in combination with doxorubicin and cyclophosphamide Q2W with granulocyte colony-stimulating factor (G-CSF; filgrastim or pegfilgrastim) or granulocyte-macrophage colony-stimulating factor (GM-CSF) support for four doses. | - Tiragolumab
- Atezolizumab
- Nab-paclitaxel
- Carboplatin
- Doxorubicin
- Cyclophosphamide
- Granulocyte colony-stimulating factor (G-CSF)
- Granulocyte-macrophage colony-stimulating factor (GM-CSF)
|
Cohort B: Tiragolumab and Atezolizumab + Nab-pac-AC | Experimental | Participantswith early TNBC in the neoadjuvant setting, who are eligible for surgery, will receive tiragolumab and atezolizumab Q2W in combination with nab-paclitaxel QW for 12 weeks, followed by tiragolumab and atezolizumab in combination with doxorubicin and cyclophosphamide Q2W with G-CSF (filgrastim or pegfilgrastim) or GM-CSF support for four doses. | - Tiragolumab
- Atezolizumab
- Nab-paclitaxel
- Doxorubicin
- Cyclophosphamide
- Granulocyte colony-stimulating factor (G-CSF)
- Granulocyte-macrophage colony-stimulating factor (GM-CSF)
|
Eligibility Criteria
Inclusion Criteria
Cohort A:
- Metastatic or locally advanced unresectable, histologically documented TNBC
characterized by absence of human epidermal growth factor 2 (HER2), estrogen receptor
(ER), and progesterone receptor (PR) expression
- Only patients with metastatic TNBC tumors that are centrally tested and found to be
programmed death-ligand 1 (PD-L1) positive will be enrolled
- No prior chemotherapy or targeted systemic therapy for inoperable locally advanced or
metastatic TNBC
- Eastern Cooperative Oncology Group performance status of 0 or 1
- Measurable disease, as assessed by the investigator according to RECIST v1.1
- Adequate hematologic and end-organ function
Cohort B:
- Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
- Histologically documented TNBC (negative HER2, ER, and PR status)
- Confirmed tumor PD-L1 evaluation as documented through central testing of a
representative tumor tissue specimen
- Primary breast tumor size of greater than (>) 2 centimeters (cm) by at least one
radiographic or clinical measurement
- Stage at presentation: cT2-cT4, cN0-cN3, cM0
- Baseline left ventricular ejection fraction (LVEF) greater than or equal to (>/=) 53
percent (%) measured by echocardiogram (ECHO) or multiple-gated acquisition (MUGA)
scans
- Adequate hematologic and end-organ function
Exclusion Criteria
Cohort A:
- Formalin-fixed, paraffin-embedded (FFPE) tumor tissue that is PD-L1 negative, as
determined on the SP142 PD-L1 immunohistochemistry assay, with positivity defined as
immune cells greater than or equal to (>/=) 1%
- 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 >2 weeks prior to initiation of study treatment
- Known central nervous system (CNS) disease, except for treated asymptomatic CNS
metastases
- Leptomeningeal disease
Cohort B:
- History of invasive breast cancer
- Stage IV (metastatic) breast cancer
- Prior systemic therapy for treatment and prevention of breast cancer
- Previous therapy with anthracyclines, platinum, or taxanes for any malignancy
- Synchronous, bilateral invasive breast cancer
- Cardiopulmonary dysfunction
Maximum Eligible Age: | N/A |
Minimum Eligible Age: | 18 Years |
Eligible Gender: | All |
Healthy Volunteers: | No |
Primary Outcome Measures
Measure: | Percentage of Participants With Adverse Events (Cohort B) |
Time Frame: | Up to approximately 21 months |
Safety Issue: | |
Description: | |
Secondary Outcome Measures
Measure: | Percentage of Participants With Adverse Events (Cohort A) |
Time Frame: | Up to approximately 21 months |
Safety Issue: | |
Description: | |
Measure: | Progression-free Survival (Cohort A) |
Time Frame: | Up to approximately 21 months |
Safety Issue: | |
Description: | |
Measure: | Duration of Response (Cohort A) |
Time Frame: | Up to approximately 21 months |
Safety Issue: | |
Description: | |
Measure: | Overall Survival (Cohort A) |
Time Frame: | Up to approximately 21 months |
Safety Issue: | |
Description: | |
Measure: | Serum Concentrations of Tiragolumab |
Time Frame: | Cohort A: Day 1 of Cycles (cycle=28 days) 1, 2, 3, 4, 8, 12, and 16 and at TD visit from start of treatment up to approximately 17 months; Cohort B: Day 1 of Cycles (cycle=28 days) 1-5 and at TD visit from start of treatment up to approximately 5 months |
Safety Issue: | |
Description: | TD visit: treatment discontinuation visit |
Measure: | Serum Concentrations of Atezolizumab |
Time Frame: | Cohort A: Day 1 of Cycles (cycle=28 days) 1, 2, 3, 4, 8, 12, and 16 and at TD visit from start of treatment up to approximately 17 months; Cohort B: Day 1 of Cycles (cycle=28 days) 1-5 and at TD visit from start of treatment up to approximately 5 months |
Safety Issue: | |
Description: | |
Measure: | Plasma Concentrations of Nab-paclitaxel (Cohort B) |
Time Frame: | Cohort B: Day 1 of Cycles (cycle=28 days) 1-5 and at TD visit from start of treatment up to approximately 5 months |
Safety Issue: | |
Description: | |
Measure: | Plasma Concentrations of Carboplatin (Cohort B) |
Time Frame: | Cohort B: Day 1 of Cycles (cycle=28 days) 1-5 and at TD visit from start of treatment up to approximately 5 months |
Safety Issue: | |
Description: | |
Measure: | Plasma Concentrations of Doxorubicin (Cohort B) |
Time Frame: | Cohort B: Day 1 of Cycles (cycle=28 days) 1-5 and at TD visit from start of treatment up to approximately 5 months |
Safety Issue: | |
Description: | |
Measure: | Plasma Concentrations of Cyclophosphamide (Cohort B) |
Time Frame: | Cohort B: Day 1 of Cycles (cycle=28 days) 1-5 and at TD visit from start of treatment up to approximately 5 months |
Safety Issue: | |
Description: | |
Measure: | Percentage of Participants With Anti-drug Antibodies (ADAs) to Tiragolumab |
Time Frame: | Cohort A: Day 1 of Cycles (cycle=28 days) 1, 2, 3, 4, 8, 12, and 16 and at TD visit from start of treatment up to approximately 17 months; Cohort B: Day 1 of Cycles (cycle=28 days) 1-5 and at TD visit from start of treatment up to approximately 5 months |
Safety Issue: | |
Description: | |
Measure: | Percentage of Participants With ADAs to Atezolizumab |
Time Frame: | Cohort A: Day 1 of Cycles (cycle=28 days) 1, 2, 3, 4, 8, 12, and 16 and at TD visit from start of treatment up to approximately 17 months; Cohort B: Day 1 of Cycles (cycle=28 days) 1-5 and at TD visit from start of treatment up to approximately 5 months |
Safety Issue: | |
Description: | |
Details
Phase: | Phase 1 |
Primary Purpose: | Interventional |
Overall Status: | Recruiting |
Lead Sponsor: | Hoffmann-La Roche |
Last Updated
August 25, 2021