Recent Updates
Recently added Catalysts

Zovegalisib

Phase 3

PIK3CA Mutation | Small molecule | Oncology |Relay Therapeutics, Inc.|Last Updated: Aug 5, 2026

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

RandomizedACTIVE_CONTROLLED
Total Trials1
Total Enrollment540

FDA Designations

BREAKTHROUGH_THERAPY

Clinical trial landscape

Zovegalisib · 1 trial · 6 indications

Phase 3 1
NCT06982521Phase 3 Study of RLY-2608 + Fulvestrant vs Capivasertib + Fulvestrant as Treatment for Locally Advanced or Metastatic PIK3CA-mutant HR+/HER2- Breast CancerPIK3CA Mutation
RECRUITING540 Analytics
PHASE3RECRUITING
Phase 3 Study of RLY-2608 + Fulvestrant vs Capivasertib + Fulvestrant as Treatment for Locally Advanced or Metastatic PIK3CA-mutant HR+/HER2- Breast Cancer
PIK3CA MutationUnlock trial analytics

Study Endpoints

Primary Endpoints

Progression-Free Survival (PFS) within the overall and kinase population by blinded independent central review (BICR)
The time from date of randomization until radiographic progression per RECIST v1.1, or death due to any cause, up to approximately 77 months

Secondary Endpoints

Overall Survival (OS) within the overall and kinase populations
The time from randomization to the date of death by any cause, up to approximately 77 months
PFS by Investigator within the overall and kinase populations
The time from date of randomization until radiographic progression per RECIST v1.1, or death due to any cause, up to approximately 77 months
Objective Response Rate (ORR) within the overall and kinase populations
Up to approximately 77 months
Unlock Study Endpoints

Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Zovegalisib + fulvestrantEXPERIMENTALZovegalisib + fulvestrant combination for participants with HR+/HER2- advanced breast cancer
capivasertib + fulvestrantACTIVE_COMPARATORcapivasertib + fulvestrant combination for participants with HR+/HER2- advanced breast cancer

Interventions

NameTypeDescription
ZovegalisibDRUG400 mg orally BID administered daily on a 28-day treatment cycle
CapivasertibDRUG400mg orally BID administered on an intermittent weekly dosing schedule. Patients will dose on Days 1 through 4 each week of a 28-day treatment cycle
FulvestrantDRUG500 mg intramuscularly administered on Cycle 1 Day 1, Day 15, and Day 1 of each subsequent cycle (28-day treatment cycle)
Unlock Study Design Details

Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites222

Inclusion Criteria: * Patient has ECOG performance status of 0-1 * One or more known primary oncogenic PIK3CA mutation(s) * Adult females, pre- and/or post-menopausal, and adult males. Pre-menopausal (and peri-menopausal) women can be enrolled if amenable to treatment with a gonadotropin-releasing ...

Countries:United StatesArgentinaAustraliaAustriaBelgiumBrazilBulgariaCanadaCzechiaDenmarkFranceGermanyGreeceHong KongItalyNetherlandsPolandPortugalSingaporeSouth KoreaSpainSwitzerlandTaiwanUnited Kingdom
Unlock Eligibility Criteria

Recent Changes (Last 90 Days)

MEDIUMAug 5, 2026NCT06982521lastUpdatePostDate: changed
LOWJul 8, 2026NCT06982521lastUpdatePostDate: changed
LOWJul 8, 2026NCT06982521lastUpdatePostDate: changed
LOWJun 11, 2026NCT06982521lastUpdatePostDate: changed
LOWJun 11, 2026NCT06982521lastUpdatePostDate: changed
LOWMay 26, 2026NCT06982521primaryCompletionDate: changed
LOWMay 24, 2026NCT06982521studyFirstPostDate: changed

Frequently asked questions about Zovegalisib

What is Zovegalisib used for?

Zovegalisib is an investigational small molecule being developed for the treatment of PIK3CA-mutant HR+/HER2- breast cancer. It is currently in a Phase 3 clinical trial for patients with locally advanced or metastatic breast cancer that is hormone receptor positive and HER2 negative.

What does Zovegalisib target?

Zovegalisib targets the PIK3CA mutation, a genetic alteration commonly found in certain cancers. The drug is designed to treat cancers that harbor this specific mutation, particularly in hormone receptor positive, HER2 negative breast cancer.

Who makes Zovegalisib?

Zovegalisib is being developed by Relay Therapeutics, Inc., a biopharmaceutical company traded on the stock exchange under the ticker symbol RLAY. The company is conducting clinical trials to evaluate the drug's safety and efficacy in treating PIK3CA-mutant breast cancer.

What phase is Zovegalisib in?

Zovegalisib is currently in Phase 3 clinical development. It has received Breakthrough Therapy designation from the FDA, which is granted to expedite the development and review of drugs that may demonstrate substantial improvement over existing therapies for serious conditions.

What clinical trials is Zovegalisib in?

Zovegalisib is being studied in a Phase 3 clinical trial with the identifier NCT06982521. This randomized, active-controlled study compares Zovegalisib plus fulvestrant to capivasertib plus fulvestrant in patients with locally advanced or metastatic PIK3CA-mutant HR+/HER2- breast cancer. The trial is currently recruiting participants.

Is Zovegalisib the same as RLY-2608?

Yes, Zovegalisib is also known as RLY-2608. The Phase 3 clinical trial NCT06982521 refers to the drug as RLY-2608, and it is being evaluated in combination with fulvestrant for the treatment of PIK3CA-mutant breast cancer.