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MK-8294

Phase 1

Metastatic Neoplasm | Small molecule | Oncology |Merck & Company, Inc.|Last Updated: Mar 16, 2026

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
UNCONTROLLEDBiomarker
Total Trials1
Total Enrollment67
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT07030712A Clinical Study of MK-8294 in Participants With Advanced Solid Tumors (MK-8294-001)PHASE1 RECRUITING 67Jul 23, 2025Aug 23, 2027Mar 16, 20265 United States, Israel +1
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Study Endpoints
Primary Endpoints
Number of participants who experience one or more dose-limiting toxicities (DLTs)
Up to approximately 35 days

DLT is defined as any drug-related adverse event (AE) observed during the DLT evaluation period (up to 35 days) that results in a change to a given dose or a delay in initiating the next treatment and reported as the number of participants experiencing a DLT.

Number of Participants Who Experience an Adverse Event (AE)
Up to approximately 2 years

An AE is any untoward medical occurrence in a participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. The number of participants who experience an AE will be reported.

Number of Participants Who Discontinue Study Intervention Due to an AE
Up to approximately 2 years

An AE is any untoward medical occurrence in a participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. The number of participants who discontinue study/study treatment due to an AE will be reported.

Secondary Endpoints
Objective Response Rate (ORR)
Up to approximately 2 years
Area Under the Plasma Concentration-Time Curve (AUC) of MK-8294
Predose and at designated timepoints in each cycle for up to approximately 2 years (each cycle = 3 weeks)
Minimum Concentration (Cmin) of MK-8294
Predose and at designated timepoints in each cycle for up to approximately 2 years (each cycle = 3 weeks)
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
MK-8294EXPERIMENTALParticipants will receive MK-8294 monotherapy in escalating doses starting from 30 µg up to a planned 70 mg via intravenous (IV) infusion. In addition, intermediate doses may also be assessed. MK-8294 will be administered on Day 1, Day 8, and Day 15 of each cycle (each cycle = 21 days). Per protocol treatment of MK-8294 has no maximum number of cycles. Participants will be treated until any of the criteria for discontinuation of study intervention are met. Participants may also receive a cluster of differentiation 8 (CD8) positron emission tomography (PET) tracer as a part of optional PET imaging.
Interventions
NameTypeDescription
MK-8294DRUG30 µg via intravenous (IV) infusion
CD8 PET TracerOTHERIV Infusion
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites5

Inclusion Criteria: The main inclusion criteria include but are not limited to the following: * Has histologically or cytologically confirmed advanced/metastatic solid tumor; including head and neck squamous cell carcinoma, cervical squamous cell carcinoma, esophageal squamous cell carcinoma, brea...

Countries:United StatesIsraelNetherlands
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT07030712primaryCompletionDate: changed
LOWMay 24, 2026NCT07030712studyFirstPostDate: changed