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MK0831

Merck Sharp & Dohme LLC · Phase 3 active Small molecule

MK0831 is a selective antagonist of the chemokine receptor CCR4 that reduces the recruitment and activation of T regulatory cells and other immune cells to the tumor microenvironment.

MK0831 is a selective antagonist of the chemokine receptor CCR4 that reduces the recruitment and activation of T regulatory cells and other immune cells to the tumor microenvironment. Used for Advanced or metastatic solid tumors (in combination with checkpoint inhibitors).

At a glance

Generic nameMK0831
SponsorMerck Sharp & Dohme LLC
Drug classCCR4 antagonist
TargetCCR4
ModalitySmall molecule
Therapeutic areaOncology
PhasePhase 3

Mechanism of action

CCR4 is highly expressed on regulatory T cells (Tregs) and activated effector T cells. By blocking CCR4, MK0831 depletes Tregs from tumors and enhances anti-tumor immune responses. This mechanism aims to shift the immune balance toward anti-tumor immunity, potentially enhancing checkpoint inhibitor efficacy.

Approved indications

Common side effects

Key clinical trials

Primary sources

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SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

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