New drug targets rare gene fault in advanced cancers
NCT ID NCT07128303
First seen Jun 27, 2026 · Last updated Aug 20, 2026 · Updated 2 times
Summary
This early-phase study tests a new drug called GS-5319 in adults with advanced solid tumors that lack a specific gene (MTAP). The main goals are to check the drug's safety, find the best dose, and see how the body processes it. About 178 people whose cancer has not responded to standard treatments will take part.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 1
The first testing in people. Mainly checks safety and dose, usually in a small group.
- Participants
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About 476 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Aug 2025
- Expected to finish
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May 2028
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Key Inclusion Criteria: * Participants diagnosed with histologically or cytologically confirmed solid tumor types who have progressed despite standard therapy, are intolerant to standard therapy, or are ineligible for standard therapy in the advanced setting (locally-advanced or metastatic). * Participant tumors are methylthioadenosine phosphorylase (MTAP)-deficient. Deoxyribonucleic acid (DNA) sequencing may be assessed locally such as by local next-generation sequencing (NGS) or by central laboratory assay when available. * Eastern Cooperative Oncology Group (ECOG) performance status score of 0 to 1. * Adequate organ function * Age ≥ 18yrs old ( ≥ 19 years old for patients in South Korea) * Participants must meet the following tissue requirements: * pretreatment tumor tissue is required Key Exclusion Criteria: * Active second malignancy. Participants with a history of malignancy who have been completely treated, with no evidence of active cancer for 3 years prior to enrollment, or participants with surgically cured tumors with low risk of recurrence may be enrolled. * Positive serum pregnancy test or participant who is breastfeeding. * Requirement for ongoing therapy with any prohibited medications. * Have not recovered (ie, returned to Grade 1 or baseline) from adverse events (AEs) due to a previously administered agent. * Active and clinically relevant bacterial, fungal, or viral infection that is not controlled or requires systemic antibiotics, antifungals, or antivirals, respectively. * Ascites or pleural effusion that is symptomatic and/or requiring medical intervention. * Active human immunodeficiency virus (HIV)/hepatitis B virus (HBV)/hepatitis C virus (HCV) infection Note: Other protocol defined Inclusion/Exclusion criteria may apply.
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
11 sites in 3 countries. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Asan Medical Center
RECRUITINGSeoul, 05505, South Korea
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Beth Israel Deaconess Medical Center
RECRUITINGBoston, Massachusetts, 02215, United States
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Massachusetts General Hospital
RECRUITINGBoston, Massachusetts, 02114, United States
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NEXT Virginia
RECRUITINGFairfax, Virginia, 22031, United States
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START - Centro Oncológico Clara Campal
RECRUITINGMadrid, 28050, Spain
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START Madrid - FJD - Hospital Fundación Jiménez Díaz - Phase I Clinical Trials Unit
RECRUITINGMadrid, 28040, Spain
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START San Antonio
RECRUITINGSan Antonio, Texas, 78229, United States
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Samsung Medical Center
RECRUITINGSeoul, 06351, South Korea
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Seoul National University Hospital
RECRUITINGSeoul, 03080, South Korea
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Vall d'Hebron Institute of Oncology (VHIO)
RECRUITINGBarcelona, 08035, Spain
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Yonsei University Severance Hospital
RECRUITINGSeoul, '06273, South Korea
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- First-in-Human trial asks whether HG381 is safe and tolerable in advanced solid tumors
- Custom-Built immune cells take aim at a notorious cancer mutation
- Experimental injection SHR-7787 put to the test against advanced solid tumors
- Experimental biologic AWT020 put to the test in Hard-to-Treat cancers
- Can a pill shrink Hard-to-Treat ovarian tumors?
- Oral drug RVU120 put to the test against advanced solid tumors