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MK-4002

Phase 1

Multiple Myeloma in Relapse | Small molecule | Oncology |Merck & Company, Inc.|Last Updated: Dec 5, 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 Enrollment100
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT04184050Study of HPN217 in Participants With Relapsed/Refractory Multiple Myeloma MK-4002 (MK-4002-001)PHASE1 ACTIVE NOT_RECRUITING 100Apr 13, 2020Dec 31, 2026Dec 5, 202512 United States, France +1
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Study Endpoints
Primary Endpoints
Number of Participants with Treatment-emergent Adverse Events (TEAEs)
Up to ~6 years

An adverse event (AE) is defined as any untoward medical occurrence in a participant administered study drug, which does not necessarily have to have a causal relationship with the study drug. A TEAE is an adverse event that occurs on or after the first dose of study treatment. The number of participants with TEAEs graded according to National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 5.0 (American Society for Transplant and Cellular Therapy \[ASTCT\] grading criteria for cytokine release syndrome \[CRS\] and immune effector cell-associated neurotoxicity syndrome \[ICANS\]) will be reported.

Number of Participants Who Discontinued Study Treatment Due to an AE
Up to ~6 years

An AE is defined as any untoward medical occurrence in a participant administered study drug, which does not necessarily have to have a causal relationship with the study drug. The number of participants who discontinue study treatment due to an AE will be reported.

Number of Participants with Dose-limiting toxicities (DLT)
Up to 35 days in Cycle 1

A DLT is defined as an event with toxicity including the type, severity, time of onset, time of resolution, and the probable association with study treatment that are not due to pre-existing conditions as defined by the CTCAE 5.0 version for all AEs except CRS and ICANS, which will be graded according to ASTCT. The number of participants who experience a DLT will be reported.

Single Dose Maximum Serum Concentration (Cmax) of MK-4002
At designated timepoints (up to ~6 years)

Blood samples collected at designated time points will be used to determine the Cmax of MK-4002 after a single dose.

Single Dose Time to Maximum Concentration (Tmax) of MK-4002
At designated timepoints (up to ~6 years)

Blood samples collected at designated time points will be used to determine the Tmax of MK-4002 after a single dose.

Area Under the Single Dose Concentration-time Curve Over the Dosing Interval τ (AUCsd,τ) of MK-4002
At designated timepoints (up to ~6 years)

Blood samples collected at designated time points will be used to determine the AUCsd,τ of MK-4002.

Single Dose Area Under the Concentration-time Curve Extrapolated to Infinity (AUCinf) of MK-4002
At designated timepoints (up to ~6 years)

Blood samples collected at designated time points will be used to determine the AUCinf after a single dose of MK-4002.

Single Dose Terminal Elimination Half-life (t1/2) of MK-4002
At designated timepoints (up to ~6 years)

Blood samples collected at designated time points will be used to determine the t1/2 after a single dose of MK-4002.

Single Dose Clearance (CL) of MK-4002
At designated timepoints (up to ~6 years)

Blood samples collected at designated time points will be used to determine the CL after a single dose of MK-4002.

Multiple Dose Maximum Concentration at Steady State (Css,max) of MK-4002
At designated timepoints (up to ~6 years)

Blood samples collected at designated time points will be used to determine the Css,max of MK-4002. This outcome will be analyzed only if steady state is achieved, and data are available.

Multiple Dose Time to Maximum Concentration at Steady State (Tss,max) of MK-4002
At designated timepoints (up to ~6 years)

Blood samples collected at designated time points will be used to determine the Tss,max of MK-4002. This outcome will be analyzed only if steady state is achieved, and data are available.

Mutiple Dose Area Under the Steady State Concentration-time Curve Over the Dosing Interval τ (AUCss,τ) of MK-4002
At designated timepoints (up to ~6 years)

Blood samples collected at designated time points will be used to determine the (AUCss,τ) of MK-4002. This outcome will be analyzed only if steady state is achieved, and data are available.

Multiple Dose Terminal Elimination Half-life (t1/2) of MK-4002
At designated timepoints (up to ~6 years)

Blood samples collected at designated time points will be used to determine the t1/2 of MK-4002. This outcome will be analyzed only if steady state is achieved, and data are available.

Multiple Dose Minimum Concentration at Steady State (Css,min) of MK-4002
At designated timepoints (up to ~6 years)

Blood samples collected at designated time points will be used to determine the Css,min of MK-4002. This outcome will be analyzed only if steady state is achieved, and data are available.

Multiple Dose Clearance (CL)
At designated timepoints (up to ~6 years)

Blood samples collected at designated time points will be used to determine the CL of MK-4002. This outcome will be analyzed only if steady state is achieved, and data are available.

Multiple Dose Volume of Distribution at Steady State (Vss) of MK-4002
At designated timepoints (up to ~6 years)

Blood samples collected at designated time points will be used to determine the Vss of MK-4002. This outcome will be analyzed only if steady state is achieved, and data are available.

Multiple Dose Accumulation Ratio (AUCss,τ/AUCsd,τ) of MK-4002
At designated timepoints (up to ~6 years)

Blood samples collected at designated time points will be used to determine the (AUCss,τ/AUCsd,τ) of MK-4002. This outcome will be analyzed only if steady state is achieved, and data are available.

Secondary Endpoints
Best Overall Response Rate (BOR)
Up to ~6 years
Overall Response rate (ORR)
Up to ~6 years
Progression-free Survival (PFS)
Up to ~6 years
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Study Design & Arms
AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
MK-4002 monotherapy dose escalationEXPERIMENTALMK-4002 is intravenously (IV) administered once weekly in escalating doses.
MK-4002 dose escalation with extended dosing intervalsEXPERIMENTALMK-4002 is IV administered once every 2 weeks.
Interventions
NameTypeDescription
MK-4002DRUGIV infusion
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites12

Major Inclusion Criteria: 1. Patients ≥18 years of age at the time of signing informed consent 2. Documented RRMM for which no standard therapy options are anticipated to result in a durable remission. Relapse defined as progressive disease after initial response (minimal response \[MR\] or better)...

Countries:United StatesFranceSpain
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Recent Changes (Last 90 Days)
LOWMay 26, 2026NCT04184050primaryCompletionDate: changed
LOWMay 24, 2026NCT04184050studyFirstPostDate: changed