Clinical trial Recruiting at 14 sites Phase 1 Interventional Ages 18 and up

Investigating ALTA3263 for advanced solid tumors with KRAS mutations

Official title: A Phase 1/1b Multiple Cohort Trial of ALTA3263 in Patients With Advanced Solid Tumors With KRAS Mutations

Run by Alterome Therapeutics, Inc. · NCT06835569 · Data updated 2026-11-12

This study is testing a new oral medication called ALTA3263 to see if it is safe and effective for adults with advanced solid tumors that have KRAS mutations.

Quick facts

PhasePhase 1
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment448 (estimated)
SponsorAlterome Therapeutics, Inc.
Industry-sponsored
Locations14 sites (Orlando, Florida and 13 other locations)
StatusRecruiting
StartedMarch 5, 2025
Main results expectedMay 2029
Study endsAugust 2029
Registry record updatedOctober 26, 2026
Trial IDNCT06835569 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include adults with unresectable or metastatic solid tumors that have confirmed KRAS mutations and have progressed on or are intolerant to prior therapies.

Probably not a fit

Patients who have previously received treatment with a KRAS inhibitor or have conditions that prevent them from taking oral medications may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study evaluates the safety and tolerability of ALTA3263, an oral KRAS isoform-selective inhibitor, in adults with advanced solid tumors that have KRAS mutations. It is an open-label, multicenter Phase 1/1b study designed to assess the pharmacokinetics and preliminary clinical activity of the drug. The study consists of two parts: a dose escalation phase to determine the optimal dose and a dose expansion phase to further evaluate its effects. Participants will be closely monitored for safety and treatment response.

Why it matters

Potential benefit: If successful, this treatment could provide a new targeted therapy option for patients with advanced solid tumors harboring KRAS mutations.

How similar studies have gone: Other studies targeting KRAS mutations have shown promise, indicating that this approach may be effective, though this specific study is exploring a novel agent.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Histologically confirmed diagnosis of a solid tumor malignancy harboring a KRAS mutation identified through molecular testing (NGS- or PCR-based) with a Clinical Laboratory Improvement Amendments-certified (or equivalent) diagnostic test.
* Unresectable or metastatic disease.
* Progressed on, intolerant to, or declined prior standard-of-care therapy (including targeted therapy, if applicable) appropriate to tumor type and stage
* Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
* Adequate organ function

Exclusion Criteria:

* Prior treatment with a KRAS inhibitor, certain exceptions are described in the full study protocol
* Known condition that prohibits the ability to swallow or absorb an oral medication.

Other inclusion/exclusion criteria may apply.

Where it's running

  • Research Site
    Orlando, Florida, United States
    Recruiting
  • Research Site
    Tampa, Florida, United States
    Recruiting
  • Research Site
    Boston, Massachusetts, United States
    Recruiting
  • Research Site
    Boston, Massachusetts, United States
    Recruiting
  • Research Site
    St Louis, Missouri, United States
    Recruiting
  • Research Site
    New York, New York, United States
    Recruiting
Show 8 more locations
  • Research Site
    New York, New York, United States
    Recruiting
  • Research Site
    New York, New York, United States
    Recruiting
  • Research Site
    Durham, North Carolina, United States
    Recruiting
  • Research Site
    Nashville, Tennessee, United States
    Recruiting
  • Research Site
    Houston, Texas, United States
    Recruiting
  • Research Site #2
    San Antonio, Texas, United States
    Recruiting
  • Research Site
    San Antonio, Texas, United States
    Recruiting
  • Research Site
    Fairfax, Virginia, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

  • Investigating KQB365 for treating advanced solid tumors

    This study tests if a new treatment called KQB365, alone or with another drug, can help adults with advanced solid tumors that have specific genetic mutations.

    Recruiting at 11 sites Phase 1 Kumquat Biosciences Inc. · Phoenix, Arizona and 10 other locations · NCT06720987

  • TGI-5 alone and with nivolumab for advanced or metastatic solid tumors

    This trial tests whether TGI-5 by itself or combined with nivolumab is safe and can shrink tumors in adults with advanced or metastatic colorectal cancer, melanoma, hepatocellular carcinoma, or non‑small cell lung cancer who have exhausted standard treatments.

    Recruiting Phase 1 Hefei TG ImmunoPharma Co., Ltd. · Shanghai · NCT07376707

  • BBO-11818 treatment for adults with KRAS mutant cancer

    This study is testing a new drug called BBO-11818 to see if it can help adults with certain types of cancer that have specific KRAS mutations.

    Recruiting at 17 sites Phase 1 TheRas, Inc., d/b/a BBOT (BridgeBio Oncology Therapeutics) · Los Angeles, California and 16 other locations · NCT06917079

  • Evaluating SIM0505 for advanced solid tumors

    This study is testing a new treatment called SIM0505 to see if it is safe and effective for adults with advanced solid tumors that haven't responded to other therapies.

    Recruiting at 6 sites Phase 1 NextCure, Inc. · Orlando, Florida and 16 other locations · NCT06792552

  • Treatment with STAR0602 for advanced solid tumors

    This study is testing a new treatment called STAR0602 to see if it can help people with advanced solid tumors by looking at how safe it is and how well it works.

    Recruiting at 16 sites Phase 1/2 Marengo Therapeutics, Inc. · Sacramento, California and 18 other locations · NCT05592626

  • AI-assisted 4D PET imaging to detect early pancreatic cancer lesions

    This study tests whether AI-assisted 4D long-axial PET imaging with FDG and FAPI can help detect early PDAC lesions in patients with suspected pancreatic tumors.

    Recruiting Ruijin Hospital · Shanghai · NCT07925125

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.