Study of Safety and Efficacy of Dapagliflozin + Metformin XR Versus Metformin XR in Participants With HR+, HER2-, Advanced Breast Cancer While on Treatment With Alpelisib and Fulvestrant (EPIK-B4 Trial)

Palo Alto (17 mi)

Age: 18+

Sex: Any

Travel: May be covered

Time Reimbursement: Varies

Trial Phase: Phase 2

Waitlist Available

Sponsor: Novartis Pharmaceuticals

No Placebo Group

Prior Safety Data

Breakthrough Therapy

Approved in 5 jurisdictions

Trial Summary

What is the purpose of this trial?This study was designed to assess the safety and efficacy of the combination of dapagliflozin plus metformin extended release (XR) compared with metformin XR during treatment with alpelisib plus fulvestrant in participants with Hormone Receptor (HR)-positive, Human Epidermal growth factor Receptor-2 (HER2)-negative advanced breast cancer with a Phosphoinositide-3-Kinase Catalytic subunit Alpha (PIK3CA) mutation following progression on or after endocrine-based therapy.

Eligibility Criteria

Treatment Details

2Treatment groups

Experimental Treatment

Active Control

Group I: Alpelisib + Fulvestrant + Dapagliflozin + Metformin XRExperimental Treatment5 Interventions

Alpelisib 300mg administered orally once daily starting at Cycle 1 Day 8 in combination with fulvestrant 500mg intramuscular at Cycle 1 Day 1 and 15 and then at Day 1 of each subsequent cycle. Participants also received a combination treatment of dapagliflozin+metformin XR (as a single tablet or as two separate tablets, at the discretion of the investigator) at a starting dose of 5 mg dapagliflozin + 500 mg metformin XR orally once daily which could be titrated to a maximum dose of 10 mg dapagliflozin + 2000 mg metformin XR once daily.

Group II: Alpelisib + Fulvestrant + Metformin XRActive Control3 Interventions

Alpelisib 300mg administered orally once daily starting at cycle 1 Day 8 in combination with fulvestrant 500mg intramuscular at Cycle 1 Day 1 and 15 and then at Day 1 of each subsequent cycle. Participants also received metformin XR 500mg orally once daily which could be titrated to a maximum dose of 2000 mg once daily.

Metformin XR is already approved in United States, European Union, Canada, Japan, Australia for the following indications:

🇺🇸 Approved in United States as Glucophage for: