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MK-6837

Phase 1

Neoplasm Metastasis | Monoclonal antibody | Oncology |Merck & Company, Inc.|Last Updated: Dec 31, 2025

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
CONTROLLEDBiomarker
Total Trials1
Total Enrollment168
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT06460961A Study of MK-6837 as a Monotherapy and Combination Therapy in Participants With Advanced/Metastatic Solid Tumors (MK-6837-001)PHASE1 ACTIVE NOT_RECRUITING 168Jul 14, 2024Jul 13, 2027Dec 31, 20257 United States, Australia +2
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Study Endpoints
Primary Endpoints
Number of participants who experience one or more dose-limiting toxicities (DLTs)
Cycle 1 (Up to approximately 21 days); each cycle is 21 days.

The following events will be considered a DLT unless clearly due to underlying disease or extraneous causes: Grade 4 neutropenia lasting \>7 days; Grade 3 or higher thrombocytopenia associated with clinically significant bleeding, regardless of duration; All Grade 3 or higher nonhematologic toxicities (with exceptions); Any abnormality that results in a drug induced liver injury; Febrile neutropenia Grade 3 or 4; Prolonged delay (\>2 weeks) in initiating treatment after the first 21 days due to intervention-related toxicity; Any intervention-related toxicity that causes the participant to discontinue intervention during the first 21 days; Grade 5 toxicity. The number of participants who experience a DLT will be presented.

Number of participants who experience one or more adverse events (AEs)
Up to approximately 35 months

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention.

Number of participants who discontinue study intervention due to an AE
Up to approximately 35 months

An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention.

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Study Design & Arms
AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Arm 1: MK-6837 MonotherapyEXPERIMENTALParticipants receive escalating doses of MK-6837 via intravenous (IV) infusion once every 3 weeks (Q3W) (Day 1 of every 21-day cycle) until progressive disease or discontinuation.
Arm 2: MK-6837 + Pembrolizumab Combination TherapyEXPERIMENTALParticipants receive escalating doses of MK-6837 via IV infusion Q3W (Day 1 of every 21-day cycle) until progressive disease or discontinuation PLUS 200mg of pembrolizumab via IV infusion Q3W (Day 1 of every 21-day cycle) for up to 35 administrations (up to \~2 years).
Interventions
NameTypeDescription
MK-6837BIOLOGICALIV Infusion
PembrolizumabBIOLOGICALIV Infusion
Rescue MedicationsDRUGAntihistamine, H2 receptor antagonist, acetaminophen (or equivalent), dexamethasone (or equivalent) administered per product label prior to MK-6837.
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites7

Inclusion Criteria: The main inclusion criteria include but are not limited to the following: * Histologically or cytologically confirmed solid tumor by pathology report that is advanced or metastatic * Human Immunodeficiency Virus (HIV)-infected participants must have well controlled HIV on Antir...

Countries:United StatesAustraliaCanadaIsrael
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT06460961primaryCompletionDate: changed
LOWMay 24, 2026NCT06460961studyFirstPostDate: changed