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GS-0201

Phase 1

Advanced Solid Tumors | Small molecule | Oncology |Gilead Sciences, Inc.|Trials Updated: Aug 13, 2026

GS-0201 development status

Highest phase Phase 1
Registered trials 1 across 1 sponsor since Dec 2023

Success Probability

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Market & Valuation

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Trial Design

CONTROLLEDBiomarker
Total Trials1
Total Enrollment278

FDA Designations

No designations recorded

GS-0201 clinical trials

GS-0201 · 1 trial · 1 indication

Phase 1 1
NCT06167317Study of GS-0201 Alone and in Combination in Participants With Advanced Solid TumorsAdvanced Solid Tumors
RECRUITING278 Analytics
PHASE1RECRUITING
Study of GS-0201 Alone and in Combination in Participants With Advanced Solid Tumors
Advanced Solid TumorsUnlock trial analytics

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 to N/A
SexALL
Healthy VolunteersNo
Study Sites8

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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Competitive Landscape -Other Solid Tumors 10 trials (matched to "Advanced Solid Tumors")

Recent Changes (Last 90 Days)

LOWAug 14, 2026NCT06167317lastUpdatePostDate: changed
LOWAug 14, 2026NCT06167317lastUpdatePostDate: changed
LOWAug 14, 2026NCT06167317lastUpdatePostDate: changed

Frequently asked questions about GS-0201

What is GS-0201?

GS-0201 is an investigational small molecule being developed by Gilead Sciences for the treatment of advanced solid tumors. It is currently in Phase 1 clinical development and has not been approved by the FDA. The program is biomarker-selected, meaning trial enrollment is guided by a specific biomarker rather than an unselected patient population.

What is GS-0201 used for in advanced solid tumors?

GS-0201 is being studied for use in advanced solid tumors, a broad category of cancers that have spread or cannot be removed surgically. It is an investigational therapy in Phase 1 testing, so it is not yet available as a treatment outside of clinical trials. The study enrolls adults 18 years and older.

Who is developing GS-0201?

GS-0201 is being developed by Gilead Sciences, Inc., which trades on the Nasdaq under the ticker GILD. Gilead is the sponsor of the clinical program evaluating the compound in advanced solid tumors. No partner or co-development arrangement for GS-0201 is disclosed in the available program information.

What phase is GS-0201 in?

GS-0201 is in Phase 1 clinical development. It is an investigational small molecule and is not FDA approved. The Phase 1 stage is designed primarily to assess safety, tolerability, and early activity in participants with advanced solid tumors before the program can advance to later-stage testing.

What clinical trials is GS-0201 in?

GS-0201 is being evaluated in one clinical trial, NCT06167317, titled Study of GS-0201 Alone and in Combination in Participants With Advanced Solid Tumors. The trial is currently recruiting, has a planned enrollment of 278 participants, and is being conducted in the United States and Israel. It is a controlled study and is not randomized or double blinded.

Is GS-0201 tested alone or in combination?

The Phase 1 trial NCT06167317 evaluates GS-0201 both as a single agent and in combination with other therapies in participants with advanced solid tumors. The study is controlled, is not randomized, and is not double blinded, and it is currently recruiting adults aged 18 years and older in the United States and Israel.