NCT03800836

A Study to Evaluate the Safety and Efficacy of Ipatasertib in Combination With Atezolizumab and Paclitaxel or Nab-Paclitaxel in Participants With Locally Advanced or Metastatic Triple-Negative Breast Cancer

A Phase Ib, Open-Label, Multicenter Study Evaluating the Safety and Efficacy of Ipatasertib in Combination With Atezolizumab and Paclitaxel or Nab-Paclitaxel in Patients With Locally Advanced or Metastatic Triple-Negative Breast Cancer

• Status: Completed
• Phase: Phase 1
• Study type: Interventional
• Enrollment: 139 (actual)
• Sponsor: Hoffmann-La Roche · Industry
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

This is a study consisting of four cohorts in this setting. In Cohort 1, the safety and efficacy of ipatasertib (ipat) in combination with atezolizumab (atezo) and paclitaxel (pac) or nab-paclitaxel will be evaluated for participants with locally advanced or metastatic triple-negative breast cancer (TNBC) who have not previously received chemotherapy. In Cohort 2, ipatasertib and atezolizumab (with no chemotherapy), will be administered to participants with locally advanced or metastatic TNBC. In Cohort 3, the safety and efficacy of neoadjuvant ipatasertib, atezolizumab, doxorubicin and cyclophosphamide (AC) (Ipat + Atezo + AC) followed by Ipat + Atezo + Pac will be evaluated in participants with locally advanced Type 2-4 (T2-4) TNBC. In Cohort 4, the safety and efficacy of Ipat + Atezo + Pac will be evaluated in participants with PD-L1 (Programmed Death-Ligand-1) positive locally advanced or metastatic TNBC that is not amenable to resection and who have not previously received chemotherapy in the advanced setting.

Conditions

• Breast Cancer

Interventions

Type	Name	Description
DRUG	Ipatasertib	Ipatasertib will be administered at a dose of 400 milligrams (mg) orally daily on Days 1-21 of each 28 day cycle for all arms except for arms F1/F2 where it will be administered at a dose of 300 milligrams (mg) orally daily for the first two cycles and 400 mg for the remaining three cycles.
DRUG	Paclitaxel	Paclitaxel will be administered at a dose of 80 milligrams per square meter (mg/m\^2) as IV infusion on Days 1, 8, and 15 of each 28 day cycle for all arms, with the exceptions of Arms F1, F2, G1 and G2, where it will be also administered on Day 22 as well, of each 28 day cycle.
DRUG	Atezolizumab	Atezolizumab will be administered by IV infusion at a fixed dose of 840 mg on Days 1 and 15 of each 28 day cycle for all arms, although in Arms C1/C2, it will be administered on Day 15 of Cycle 1 followed by Days 1 and 15 in subsequent cycles.
DRUG	Nab-Paclitaxel	Nab-paclitaxel will be administered by IV infusion at a dose of 100 mg/m\^2 on Days 1, 8, and 15 of each 28 day cycle.
DRUG	AC	AC (Doxorubicin and Cyclophosphamide) will be administered by IV infusion at 60 mg/m\^2 and 600 mg/m\^2 respectively on Days 1 and 15 of Cycles 1 and 2 for Arms F1, F2, G1 and G2.

Timeline

• Start date: 2018-02-13
• Primary completion: 2022-03-16
• Completion: 2022-03-16
• First posted: 2019-01-11
• Last updated: 2024-10-30
• Results posted: 2024-10-30

Locations

18 sites across 5 countries: United States, Australia, France, Spain, United Kingdom

Regulatory

• FDA-regulated drug study