Experimental pill GS-1206 takes aim at Hard-to-Treat solid tumors

NCT ID NCT07703878

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jul 15, 2026 · Last updated Sep 09, 2026 · Updated 5 times

Summary

This study tests an experimental oral drug called GS-1206 in adults with advanced or metastatic solid tumors that have a specific genetic mutation. The main goals are to evaluate the drug's safety, tolerability, and how the body processes it. Participants must have tumors that have worsened after standard treatments or who cannot take those treatments.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
an experimental oral drug called GS-1206
What this could lead to
If successful, this could lead to a new treatment option for people with certain solid tumors that have not responded to standard therapies.
What could go wrong
This is an early-phase trial focused on safety, so the drug may not shrink tumors or improve survival. Side effects are possible and not yet fully known.

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

Phase 1

The first testing in people. Mainly checks safety and dose, usually in a small group.

Participants

About 302 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jul 2026

Expected to finish

Sep 2029

An estimate. End dates often move.

Lead sponsor

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

18 years and older

Sex

Anyone

Healthy volunteers

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Key Inclusion Criteria: * All individuals must have a tumor with protocol-specified mutation as determined by local health-authority approved test. * For Part A (including backfill cohorts): Individuals with histologically confirmed advanced or metastatic solid tumors who have progressed following treatment in the advanced or metastatic setting known to confer clinical benefit, unless the individual refused, is intolerant to, or is not eligible for standard-of-care (SOC) treatment. * For Part B dose expansion, individuals with protocol-specified tumor types will be enrolled. Key Exclusion Criteria: * Use of any of the therapies listed below within the specified time frames: 1. Investigational drugs (drugs not marketed for any indication) within 28 days prior to Cycle 1 Day 1. 2. Anticancer biologic agent or immunotherapy within 28 days prior to Cycle 1 Day 1. 3. Anticancer chemotherapy or targeted approved small molecule therapy within 21 days prior to Cycle 1 Day 1, or 42 days for nitrosoureas or mitomycin. 4. Hormonal or other adjunctive therapy for cancers other than the cancer under evaluation in this study that started within 14 days prior to planned Cycle 1 Day 1 are not permitted. Exceptions: hormonal therapy, bisphosphonates, somatostatin analogues, and leuprolide are permitted if started at least 14 days prior to Cycle 1 Day 1. 5. Major surgery (excluding minor procedures, eg, placement of vascular access, gastrointestinal/biliary stent, biopsy) within 28 days prior to Cycle 1 Day 1, and any toxicity or complications have recovered to Grade 1 or less. 6. Radiation therapy within 21 days prior to Cycle 1 Day 1. Exception: limited (eg, pain palliation) radiation therapy is allowed if any radiation associated toxicity is resolved to Grade 1 or less, and the radiation is not administered to a target lesion. Note: Other protocol defined Inclusion/Exclusion criteria may apply.

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for Solid tumor are added.

Our safety recommendation!

By submitting, you agree to our Terms of use

Conditions

The condition(s) this trial relates to.

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.

  1. The places running it

    4 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • NEXT Oncology

    RECRUITING

    San Antonio, Texas, 78229, United States

  • NEXT Oncology Dallas

    RECRUITING

    Texas City, Texas, 75039, United States

  • START Midwest, LLC

    RECRUITING

    Grand Rapids, Michigan, 49546, United States

  • START San Antonio, LLC

    RECRUITING

    Texas City, Texas, 78229, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.