RecruitingPhase 2NCT06558773

GSL Synthetase Inhibitor Plus Immune Checkpoint Inhibitor and/or Regorafenib in Previously Treated pMMR/MSS CRC.

GSL Synthetase Inhibitor in Combination With Immune Checkpoint Inhibitor and/or Regorafenib for Patients With Advanced/Metastatic pMMR/MSS Colorectal Cancer:an Open-Label, Randomized,Phase II Study


Sponsor

Chinese PLA General Hospital

Enrollment

120 participants

Start Date

Mar 1, 2026

Study Type

INTERVENTIONAL

Conditions

Summary

In this single-center,open-label, randomized, phase II study, the efficacy and feasibility of GSL synthetase inhibitor in combination with immune checkpoint inhibitor and/or regorafenib therapeutic regimen will be evaluated in patients with advanced/metastatic proficient mismatch repair/microsatellite stable (pMMR/MSS) colorectal cancer (CRC).In this clinical trial, a total of 120 eligible patients were stratified randomly (with/without liver metastases) assigned to the 3 arms in a 1:1:1 ratio: comparator group-arm A (Regorafenib+Immune checkpoint inhibitor) ,experimental group-arm B (Eliglustat+Immune checkpoint inhibitor) and experimental group-arm C (Eliglustat+Immune checkpoint inhibitor+Regorafenib).It aims to: 1).assess the antitumor effects of GSL synthetase inhibitor in combination with immune checkpoint inhibitor and/or regorafenib;2).evaluate the immunological or clinical predictive biomarkers for efficacy and toxicity; 3).detect the transformation of tumor microenvironment (TME) and dynamic changes of immune cells in peripheral blood after the treatment with GSL synthetase inhibitor in combination with immune checkpoint inhibitor and/or regorafenib.


Eligibility

Min Age: 18 YearsMax Age: 75 Years

Plain Language Summary

Simplified for easier understanding

This study is testing a new drug that blocks an enzyme called GSL synthetase, used in combination with immunotherapy and/or regorafenib, for people with metastatic colorectal cancer that has already been treated with at least two other regimens and has a specific tumor profile (called pMMR/MSS) that usually does not respond well to immunotherapy. **You may be eligible if...** - You are aged 18–75 with confirmed metastatic or locally advanced colorectal cancer - Your tumor has the pMMR/MSS profile - You have already tried at least two prior treatment regimens without success - You have at least one measurable tumor and good organ function **You may NOT be eligible if...** - You have had more than the allowed previous treatments without recovery - You have severe organ dysfunction or very poor performance status - You are pregnant or unable to use effective contraception - Your previous treatment ended less than 4 weeks ago without recovery Talk to your doctor to see if this trial is right for you.

This summary was AI-generated to explain the trial in plain language. It is not medical advice. Always discuss eligibility with your doctor before enrolling in a clinical trial.

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Interventions

DRUGRegorafenib+Immune checkpoint inhibitor

Regorafenib orally 80mg daily .Dose escalation to120mg daily was allowed if well tolerated. Immune checkpoint inhibitor (physician decided) .

DRUGEliglustat+Immune checkpoint inhibitor

Eliglustat 84mg will be administered twice daily in the first 14 days and the following every other week. Immune checkpoint inhibitor (physician decided) .

DRUGEliglustat+Immune checkpoint inhibitor +Regorafenib

Eliglustat 84mg will be administered twice daily in the first 14 days and the following every other week. Immune checkpoint inhibitor (physician decided) . Regorafenib orally 80mg daily .Dose escalation to 120mg daily was allowed if well tolerated.


Locations(1)

China

Beijing, Biotherapeutic Department of Chinsese PLA Gereral Hospital, China

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NCT06558773


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