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A Study of an FGFR2/3 Inhibitor (CGT4859) in Patients With Cholangiocarcinoma and Other Advanced Solid Tumors

RECRUITINGPhase 1/2Sponsored by Cogent Biosciences, Inc.
Actively Recruiting
PhasePhase 1/2
SponsorCogent Biosciences, Inc.
Started2025-01-22
Est. completion2027-03
Eligibility
Age18 Years+
Healthy vol.Accepted
Locations13 sites

Summary

This is an open-label, phase 1/2 study evaluating the safety, tolerability, pharmacokinetic (what the body does to the drug), pharmacodynamic (what the drug does to the body), and antitumor activity of CGT4859 in adult participants with intrahepatic cholangiocarcinoma (iCCA) or other advanced solid tumors with FGFR2 and/or FGFR3 genetic alternations.

Eligibility

Age: 18 Years+Healthy volunteers accepted
Key Inclusion Criteria:

1. Histologically confirmed locally advanced, metastatic, and/or unresectable iCCA or other solid tumor with documented FGFR2/3 alteration in blood and/or tumor.
2. Previously treated with, not appropriate for, or declined standard-of-care first-line treatment.
3. Have measurable disease per RECIST v1.1.
4. Eastern Cooperative Oncology Group (ECOG) performance status of 0-1.
5. Have clinically acceptable local laboratory screening results (clinical chemistry and hematology) within certain limits.
6. Resolution of toxicities from prior therapy to ≤Grade 1 (or baseline), including resolution of clinically significant laboratory abnormalities, before the first dose of study drug. Exceptions are alopecia, hypothyroidism, or type 1 diabetes mellitus controlled with medical intervention, and paronychia controlled with local intervention.

Key Exclusion Criteria:

1. Received chemotherapy or anticancer therapies or radiotherapy within certain timeframes before first dose of study drug.
2. Major surgeries (eg, abdominal laparotomy) within 4 weeks of the first dose of study drug.
3. Clinically significant corneal or retinal disorders or current evidence of retinal detachment.
4. Received more than 2 prior FGFRi therapies
5. Active, symptomatic, or untreated brain metastases unless the participant is clinically stable and off corticosteroids for ≥2 months.

Conditions14

Advanced Solid TumorsCancerCholangiocarcinomaFGFR2 Gene AmplificationFGFR2 Gene Fusion/RearrangementFGFR2 Gene Short VariantsFGFR2 Genetic AlterationsFGFR3 Gene AmplificationFGFR3 Gene Fusion/RearrangementFGFR3 Gene Short Variants

Locations13 sites

Mayo Clinic Scottsdale
Scottsdale, Arizona, 85253
Stanford Cancer Institute
Palo Alto, California, 94305
Mayo Clinic Jacksonville
Jacksonville, Florida, 32224
Moffitt Cancer Center
Tampa, Florida, 33612
University of Chicago Medicine Comprehensive Cancer Center
Chicago, Illinois, 60637

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Trial data from ClinicalTrials.gov. Trial status and eligibility can change — verify directly with the study contact or on ClinicalTrials.gov.

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