Phase 2 Study of SR-8541A for Metastatic Colorectal Cancer

This study is testing a new combination of medicines, SR-8541A, botensilimab, and balstilimab, for people with metastatic colorectal cancer that is refractory (meaning it hasn't responded to other treatments) and is "microsatellite stable" (MSS-CRC). Researchers want to see how safe and effective this combination is, and to find the best dose. You may be able to join if you are 18 or older, have this type of colorectal cancer, and your tumor is not MSI-H/dMMR. The study will look at how well the treatment works and how your body tolerates it over cycles of 28 days.

Study design
This is a Phase 2 study, meaning it's an early-stage study to evaluate safety and effectiveness. It is an open-label study, so you and your doctors will know which treatments you are receiving. About 70 people are expected to participate.
What's involved
Not specified in the trial record.
Compensation
Not stated in the trial record.
Follow-up
The primary goals of the study are measured in 28-day cycles, but the total duration of follow-up is not specified.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT06589440

Phase 2 Study of SR-8541A in Combination With Botensilimab and Balstilimab in Subjects With Refractory Metastatic Microsatellite Stable Colorectal Cancer (MSS-CRC)

Recruiting
PHASE2Ages 18+InterventionalTreatment
Stingray Therapeutics
~70 participants
Updated 2026-08-12 on ClinicalTrials.gov
What's tested:SR-8541A

At a glance

Recruiting sites
6 of 6 listed sites are recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
To evaluate the safety, tolerability, efficacy, and define the optimal dose for expansion of SR-8541A in combination with botensilimab and balstilimab
Measured over Approximately 3 dose levels (DL) will be investigated in 28-day cycles
Refractory Metastatic Microsatellite Stable Colorectal Cancer (MSS-CRC)
6 sites across 3 states
Texas4
New Jersey1
Washington1

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  • To evaluate the safety, tolerability, efficacy, and define the optimal dose for expansion of SR-8541A in combination with botensilimab and balstilimabApproximately 3 dose levels (DL) will be investigated in 28-day cycles

    Part 1 of the study is to establish the recommended dose of SR-8541A in combination with botensilimab and balstilimab.