# Evaluation of Co-formulated Pembrolizumab/Quavonlimab (MK-1308A) Versus Other Treatments in Participants With Microsatellite Instability-High (MSI-H) 

Source: https://onco.cc/trials/nct04895722/  
OnCo record `nct04895722` (Trial). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)"; commercial use needs a licence.

## TL;DR

A phase 2 trial of Pembrolizumab, Favezelimab in colorectal cancer, run by Merck Sharp & Dohme LLC, active and no longer recruiting.

## Summary

Evaluation of Co-formulated Pembrolizumab/Quavonlimab (MK-1308A) Versus Other Treatments in Participants With Microsatellite Instability-High (MSI-H) or Mismatch Repair Deficient (dMMR) Stage IV Colorectal Cancer (CRC) (MK-1308A-008/KEYSTEP-008). is a phase 2 interventional study registered as NCT04895722 by Merck Sharp & Dohme LLC, with 302 participants enrolled, started 2021-06-25 and due to reach its primary completion in 2025-05-21. Interventions recorded: Pembrolizumab, Pembrolizumab/Quavonlimab, Pembrolizumab/Favezelimab, Pembrolizumab/Vibostolimab, MK-4830. Conditions listed: Colorectal Cancer. No results are recorded here; the registry entry is the source.

## Fields

- Kind: Trial
- Status: active
- Last checked: 2026-09-16
- Tags: ctgov-ingest
- Registry id: NCT04895722
- Phase: 2
- Setting: A Phase 2, Multicenter, Multi Arm, Study to Evaluate MK-1308A (Co-formulated Quavonlimab (MK-1308)/Pembrolizumab) Versus Other Treatments in Participants With Microsatellite Instability-High (MSI-H) or Mismatch Repair Deficient (dMMR) Stage IV Colorectal Cancer: (MK-1308A-008)
- Sponsor: Merck Sharp & Dohme LLC
- Enrolled: 302

## Sources

- ClinicalTrials.gov NCT04895722: https://clinicaltrials.gov/study/NCT04895722

## Connected records

- cancers: [Colorectal cancer](https://onco.cc/cancers/colorectal/)
- drugs: [Favezelimab](https://onco.cc/drugs/favezelimab/), [Pembrolizumab](https://onco.cc/drugs/pembrolizumab/)
- companies: [Merck & Co. (MSD)](https://onco.cc/companies/merck/)

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