Clinical trial Recruiting at 85 sites Phase1; Phase2 Interventional Ages 18 and up

GSK5764227 for adults with advanced unresectable gastrointestinal cancers

Official title: A Phase1 b/2, Multicenter, Open-label Study to Evaluate the Efficacy and Safety of GSK5764227 Alone and in Combination in Participants With Previously Treated Advanced Unresectable or Metastatic Gastrointestinal Solid Tumors

Run by GlaxoSmithKline · NCT06885034 · Data updated 2026-11-12

This test tries the drug GSK5764227, alone or with other treatments, in adults with advanced gastrointestinal cancers that cannot be removed by surgery and who have had prior therapy.

More Gastrointestinal Neoplasms trials

Quick facts

PhasePhase1; Phase2
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment346 (estimated)
SponsorGlaxoSmithKline
Industry-sponsored
Locations85 sites (Los Alamitos, California and 84 other locations)
StatusRecruiting
StartedJune 11, 2025
Main results expectedJanuary 9, 2029
Study endsJanuary 9, 2029
Registry record updatedOctober 19, 2026
Trial IDNCT06885034 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults (≥18) with histologically confirmed unresectable or metastatic colorectal adenocarcinoma or pancreatic ductal adenocarcinoma who meet the protocol's prior-treatment limits, can provide required tumor tissue, and can attend study visits are eligible.

Probably not a fit

Patients with cancers that can still be removed surgically, those who exceed the allowed number of prior therapies, are medically ineligible for experimental treatment, or cannot travel to the study sites are unlikely to benefit from this trial.

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

What this trial studies

This phase 1/2 study gives GSK5764227 alone or in combination to adults with unresectable or metastatic gastrointestinal cancers to measure safety, side effects, pharmacokinetics, and early signs of tumor response. The trial includes separate cohorts for colorectal cancer (CRC) and pancreatic ductal adenocarcinoma (PDAC), with CRC patients having received 1–2 prior lines of systemic therapy and PDAC patients having received one prior systemic therapy. Participants must provide tumor tissue (fresh biopsy or archival) and will undergo regular imaging and laboratory monitoring to track response and how the drug is handled by the body. The study is conducted at selected GSK investigational sites and follows the typical early-phase dose-finding and expansion approach.

Why it matters

Potential benefit: If successful, GSK5764227 could provide a new treatment option that shrinks tumors or slows disease progression for people with advanced unresectable gastrointestinal cancers.

How similar studies have gone: Some targeted and experimental agents have produced meaningful responses in subsets of gastrointestinal cancers, but GSK5764227 itself is an experimental compound with limited prior human data.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion criteria:

Participants are eligible to be included in the study only if all of the following criteria apply: All cohorts

* Is at least 18 years of or the legal age of consent in the jurisdiction in which the study is taking place at the time of signing the informed consent form (ICF). CRC Cohort
* Has histologically confirmed unresectable, locally advanced or unresectable metastatic adenocarcinoma of the colon or rectum (histology defined by World Health Organization (WHO) classification).

PDAC Cohort

* Has histologically or cytologically confirmed unresectable, locally advanced or metastatic adenocarcinoma of the pancreas (histology defined by WHO classification).

All Cohorts

* Is willing to use adequate contraception.
* Is capable of giving signed informed consent, including compliance with the requirements and restrictions listed in the ICF and in the protocol.
* Has an ECOG performance status of 0 or 1.
* Has adequate organ function.

Exclusion criteria:

Participants are excluded from the study if any of the following criteria apply:

* Has a malignancy (except disease under study) that has progressed or required active treatment within the past 24 months except for basal cell or squamous cell carcinomas of the skin or in-situ carcinomas \[e.g., breast, cervix, bladder\] that have been resected with no evidence of disease.
* Has had any major surgery within 28 days prior to randomization or first dose of study intervention, depending on sub-cohort/cohort assignment
* Has any history of prior allogenic or autologous bone marrow transplant or other solid organ transplant.
* Has severe, uncontrolled or active cardiovascular disorders.
* Has serious or poorly controlled hypertension.
* Has clinically significant bleeding symptoms or significant bleeding tendency within 1 month prior to the first dose.
* Has untreated brain or Central nervous system (CNS) metastases or brain/CNS metastases that have progressed.
* Has evidence of current ILD/non-infectious pneumonitis or a prior history of ILD/non-infectious pneumonitis requiring high-dose glucocorticoids Or suspected ILD/non-infectious pneumonitis that cannot be ruled out by imaging.
* Has ongoing adverse reaction(s) from prior therapy that has(have) not recovered to Grade 1 or to the baseline status preceding prior therapy.
* Has received any prior therapy with an Antibody-drug conjugate (ADC) with a Topoisomerase-1 (TOPO1)-inhibitor payload.
* Is pregnant or breastfeeding.

Where it's running

  • GSK Investigational Site
    Los Alamitos, California, United States
    Recruiting
  • GSK Investigational Site
    Los Angeles, California, United States
    Recruiting
  • GSK Investigational Site
    Santa Monica, California, United States
    Recruiting
  • GSK Investigational Site
    Whittier, California, United States
    Recruiting
  • GSK Investigational Site
    Aurora, Colorado, United States
    Recruiting
  • GSK Investigational Site
    New York, New York, United States
    Recruiting
Show 44 more locations
  • GSK Investigational Site
    New York, New York, United States
    Recruiting
  • GSK Investigational Site
    Durham, North Carolina, United States
    Recruiting
  • GSK Investigational Site
    Houston, Texas, United States
    Recruiting
  • GSK Investigational Site
    San Antonio, Texas, United States
    Recruiting
  • GSK Investigational Site
    Wenatchee, Washington, United States
    Recruiting
  • GSK Investigational Site
    Madison, Wisconsin, United States
    Recruiting
  • GSK Investigational Site
    Heidelberg, Victoria, Australia
    Recruiting
  • GSK Investigational Site
    Melbourne, Victoria, Australia
    Recruiting
  • GSK Investigational Site
    Bonheiden, Belgium
    Recruiting
  • GSK Investigational Site
    Brussels, Belgium
    Recruiting
  • GSK Investigational Site
    Leuven, Belgium
    Recruiting
  • GSK Investigational Site
    Roeselare, Belgium
    Recruiting
  • GSK Investigational Site
    Porto Alegre, Brazil
    Recruiting
  • GSK Investigational Site
    São Paulo, Brazil
    Recruiting
  • GSK Investigational Site
    Teresina, Brazil
    Recruiting
  • GSK Investigational Site
    Calgary, Alberta, Canada
    Recruiting
  • GSK Investigational Site
    Toronto, Ontario, Canada
    Recruiting
  • GSK Investigational Site
    Montreal, Quebec, Canada
    Recruiting
  • GSK Investigational Site
    Sherbrooke, Quebec, Canada
    Recruiting
  • GSK Investigational Site
    Kuopio, Northern Savonia, Finland
    Recruiting
  • GSK Investigational Site
    Helsinki, Finland
    Recruiting
  • GSK Investigational Site
    Helsinki, Finland
    Recruiting
  • GSK Investigational Site
    Tampere, Finland
    Recruiting
  • GSK Investigational Site
    Dijon, France
    Recruiting
  • GSK Investigational Site
    Marseille, France
    Recruiting
  • GSK Investigational Site
    Paris, France
    Recruiting
  • GSK Investigational Site
    Paris, France
    Recruiting
  • GSK Investigational Site
    Paris, France
    Recruiting
  • GSK Investigational Site
    Poitiers, France
    Recruiting
  • GSK Investigational Site
    Rennes, France
    Recruiting
  • GSK Investigational Site
    Villejuif, France
    Recruiting
  • GSK Investigational Site
    Frankfurt am Main, Hesse, Germany
    Recruiting
  • GSK Investigational Site
    Bochum, Germany
    Recruiting
  • GSK Investigational Site
    Düsseldorf, Germany
    Recruiting
  • GSK Investigational Site
    Lübeck, Germany
    Recruiting
  • GSK Investigational Site
    München, Germany
    Recruiting
  • GSK Investigational Site
    Roma, Rm, Italy
    Recruiting
  • GSK Investigational Site
    Milan, Italy
    Recruiting
  • GSK Investigational Site
    Milan, Italy
    Recruiting
  • GSK Investigational Site
    Pisa, Italy
    Recruiting
  • GSK Investigational Site
    Aichi, Japan
    Recruiting
  • GSK Investigational Site
    Chiba, Japan
    Recruiting
  • GSK Investigational Site
    Hokkaido, Japan
    Recruiting
  • GSK Investigational Site
    Osaka, Japan
    Recruiting

+35 more sites. See ClinicalTrials.gov for the full list.

Study contacts

Similar studies

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

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.