Study Assessing the Efficacy and Safety of Alpelisib + Nab-paclitaxel in Subjects With Advanced TNBC Who Carry Either a PIK3CA Mutation or Have PTEN Loss (EPIK-B3)
A Phase III, Multicenter, Randomized, Double-blind, Placebo-controlled Study to Assess the Efficacy and Safety of Alpelisib (BYL719) in Combination With Nab-paclitaxel in Patients With Advanced Triple Negative Breast Cancer With Either Phosphoinositide-3-kinase Catalytic Subunit Alpha (PIK3CA) Mutation or Phosphatase and Tensin Homolog Protein (PTEN) Loss Without PIK3CA Mutation
Sponsor: Novartis Pharmaceuticals
Terminated
The study was terminated following a strategic decision to halt recruitment due to persistently slow enrollment. This decision was not driven by any new or unexpected safety concerns.
Other terminated trials from Novartis Pharmaceuticals
Other Triple Negative Breast Neoplasms trials with similar outcome
Listed as NCT04251533, this observational or N/A phase trial focuses on Triple Negative Breast Neoplasms and remains terminated or withdrawn. Sponsored by Novartis Pharmaceuticals, it has been updated 43 times since 2020, reflecting substantial change activity. This study contributes to the evolving evidence base for cancer treatment protocols.
Study Description(click to expand)The recruitment of Part A was halted on 11-Nov-2022 due to slow recruitment. Since Part B1 did not meet its primary objective for confirmed overall response rate, the Part B2 was not initiated, and the recruitment was halted for the entire study.
Upon confirming either PIK3CA mutation and/or PTEN loss status, advanced TNBC participants meeting all other eligibility criteria were assigned to either Part A (PIK3CA mutation regardless of PTEN loss) or Part B1 (PTEN loss with PIK3CA unknown or non-mutant).
In Part A, participants were randomized a 1:1 to receive either:
* alpelisib 300 mg daily orally + nab-paclitaxel 100 mg/m\^2 intravenously (IV) on Days 1, 8, and 15 of each 28-day cycle or
* placebo + nab-paclitaxel 100 mg/m\^2 IV on Days 1, 8, and 15 of each 28-day cycle.
In Part B1, participants received alpelisib 300 mg daily orally + nab-paclitaxel 100 mg/m\^2 IV on Days 1, 8, and 15 of each 28-day cycle.
The recruitment of Part A was halted on 11-Nov-2022 due to slow recruitment. Since Part B1 did not meet its primary objective for confirmed overall response rate, the Part B2 was not initiated, and the recruitment was halted for the entire study.
Upon confirming either PIK3CA mutation and/or PTEN loss status, advanced TNBC participants meeting all other eligibility criteria were assigned to either Part A (PIK3CA mutation regardless of PTEN loss) or Part B1 (PTEN loss with PIK3CA unknown or non-mutant).
In Part A, participants were randomized a 1:1 to receive either:
* alpelisib 300 mg daily orally + nab-paclitaxel 100 mg/m\^2 intravenously (IV) on Days 1, 8, and 15 of each 28-day cycle or * placebo + nab-paclitaxel 100 mg/m\^2 IV on Days 1, 8, and 15 of each 28-day cycle.
In Part B1, participants received alpelisib 300 mg daily orally + nab-paclitaxel 100 mg/m\^2 IV on Days 1, 8, and 15 of each 28-day cycle.
Status Flow
Change History
43 versions recorded-
May 4, 2026 — Present [daily]
Terminated
Status: Active Not Recruiting → Terminated · Phase: PHASE3 → None
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▶ Show 38 earlier versions
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Status: Not Yet Recruiting → Recruiting
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Not Yet Recruiting PHASE3
First recorded
Eligibility Summary
The purpose of this study was to determine whether treatment with alpelisib in combination with nab-paclitaxel is safe and effective in subjects with advanced triple negative breast cancer (aTNBC) who carry either a PIK3CA mutation (Study Part A) or have PTEN loss (Study Part B1) or PTEN loss without PIK3CA mutation (Study Part B2)
Contact Information
- Novartis Pharmaceuticals
For direct contact, visit the study record on ClinicalTrials.gov .
Study Locations
Alicante, Spain , Angers, France , Arkhangelsk, Russia , Badajoz, Spain , Barretos, Brazil , Baton Rouge, United States , Bogotá, Colombia , Bratislava, Slovakia , Bratislava, Slovakia , Budapest, Hungary and 68 more locations