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GS-0201

Phase 1

Advanced Solid Tumors | Small molecule | Oncology |Gilead Sciences, Inc.|Last Updated: May 28, 2026

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
CONTROLLEDBiomarker
Total Trials1
Total Enrollment278
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT06167317Study of GS-0201 Alone and in Combination in Participants With Advanced Solid TumorsPHASE1 RECRUITING 278Jan 9, 2024Sep 1, 2028May 28, 20267 United States, Israel
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Study Endpoints
Primary Endpoints
The Number of Participants with Dose Limiting Toxicities (DLTs) During Dose Escalation
First dose up to 30 days post last dose (Up to approximately 109 weeks).

DLTs are defined as any of the following treatment-emergent adverse events (AEs) regardless of attribution (graded according to the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) Version 5.0), unless clearly related to an underlying disease or extraneous causes, with onset within the DLT-evaluation period for the corresponding dose.

The Percentage of Participants with Adverse Events (AEs) and Serious Adverse Events (SAEs)
First dose up to 30 days post last dose (Up to approximately 109 weeks).
The Incidence of Laboratory Abnormalities
First dose up to 30 days post last dose (Up to approximately 109 weeks).
Secondary Endpoints
Pharmacokinetic (PK) Parameter: Area Under the Concentration (AUC)0-24 of GS-0201
Predose and postdose up to end of treatment (up to 105 weeks)
PK Parameter: Cmax of GS-0201
Predose and postdose up to end of treatment (up to 105 weeks)
PK Parameter: Tmax of GS-0201
Predose and postdose up to end of treatment (up to 105 weeks)
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Study Design & Arms
AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Part A: GS-0201 Monotherapy Dose EscalationEXPERIMENTALParticipants will receive escalating doses of GS-0201 monotherapy, until disease progression, or until the participant meets other study drug discontinuation criteria as specified in protocol or up to 105 weeks, whichever occurs first.
Part B: Cohort B1: GS-0201 Monotherapy Dose ExpansionEXPERIMENTALParticipants with selected breast cancer indication will receive GS-0201 monotherapy at the recommended dose for expansion.
Part B: Cohort B2: GS-0201 Monotherapy Dose ExpansionEXPERIMENTALParticipants with selected indications not included in cohort B1 will receive GS-0201 monotherapy at the recommended dose for expansion.
Part C: Dose Escalation: GS-0201 + Sacituzumab Govitecan (SG)EXPERIMENTALParticipants will receive escalating doses of GS-0201 in combination with SG, until disease progression, or until the participant meets other study drug discontinuation criteria as specified in protocol or up to 105 weeks, whichever occurs first.
Part D: Cohort D1: Dose Expansion: GS-0201 + SGEXPERIMENTALParticipants with confirmed unresectable locally advanced or metastatic triple negative breast cancer (mTNBC) will receive GS-0201 at the recommended Phase 2 dose (RP2D) in combination with SG.
Part D: Cohort D2: Dose Expansion: GS-0201 + SGEXPERIMENTALParticipants with recurrent/persistent endometrial cancer will receive GS-0201 at the recommended Phase 2 dose (RP2D) in combination with SG.
Interventions
NameTypeDescription
GS-0201DRUGPill administered orally
Sacituzumab GovitecanDRUGAdministered intravenously
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites7

Inclusion Criteria: * Able to understand and give written informed consent. * Assigned female or male at birth, 18 years of age or older, and meet the age of majority/adulthood per local regulations. * Eastern Cooperative Oncology Group (ECOG) performance status 0 to 1. * Measurable disease by Resp...

Countries:United StatesIsrael
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Recent Changes (Last 90 Days)
LOWMay 29, 2026NCT06167317Enrollment: 254 → 278
LOWMay 29, 2026NCT06167317Enrollment: 254 → 278
LOWMay 29, 2026NCT06167317Enrollment: 254 → 278
LOWMay 26, 2026NCT06167317primaryCompletionDate: changed
LOWMay 24, 2026NCT06167317studyFirstPostDate: changed