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MK-4002

Phase 1

Multiple Myeloma in Relapse | Small molecule | Oncology |Merck & Company, Inc.|Trials Updated: Dec 5, 2025

MK-4002 development status

Highest phase Phase 1
Registered trials 1 across 1 sponsor since Dec 2019

MK-4002 target and mechanism

ModalitySmall molecule

Also known as HPN217

Success Probability

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Market & Valuation

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Trial Design

CONTROLLED
Total Trials1
Total Enrollment100

FDA Designations

No designations recorded

MK-4002 clinical trials

MK-4002 · 1 trial · 4 indications

Phase 1 1
NCT04184050Study of HPN217 in Participants With Relapsed/Refractory Multiple Myeloma MK-4002 (MK-4002-001)Multiple Myeloma in Relapse
ACTIVE NOT_RECRUITING100 Analytics
PHASE1ACTIVE NOT_RECRUITING
Study of HPN217 in Participants With Relapsed/Refractory Multiple Myeloma MK-4002 (MK-4002-001)
Multiple Myeloma in RelapseUnlock trial analytics

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 to 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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Frequently asked questions about MK-4002

What is MK-4002 used for?

MK-4002 is an investigational small molecule being studied for the treatment of relapsed or refractory multiple myeloma, a cancer of plasma cells in the bone marrow. It is in Phase 1 clinical development and is not yet approved for any indication. The trial enrolls adults with multiple myeloma in relapse.

Who is developing MK-4002?

MK-4002 is being developed by Merck & Company, Inc., which trades on the New York Stock Exchange under the ticker MRK. Merck is the sponsor of the Phase 1 study evaluating the compound in patients with relapsed or refractory multiple myeloma.

What phase is MK-4002 in?

MK-4002 is in Phase 1 clinical development. It is an investigational small molecule and has not been approved by the FDA or any other regulatory agency. The single registered trial is a Phase 1 study that is currently active but no longer recruiting participants.

What clinical trials is MK-4002 in?

MK-4002 is being evaluated in one registered clinical trial, NCT04184050, titled Study of HPN217 in Participants With Relapsed/Refractory Multiple Myeloma MK-4002 (MK-4002-001). The Phase 1 study has an estimated enrollment of 100 participants, is active but not recruiting, and is conducted in the United States, France, and Spain.

Is MK-4002 the same as HPN217?

Yes, MK-4002 is also known as HPN217. The Phase 1 trial is registered under the title Study of HPN217 in Participants With Relapsed/Refractory Multiple Myeloma MK-4002, linking both names to the same investigational compound being developed by Merck for relapsed or refractory multiple myeloma.

Who can enroll in the MK-4002 clinical trial?

The MK-4002 Phase 1 trial, NCT04184050, enrolls adults aged 18 years and older of any sex. It includes participants with relapsed or refractory multiple myeloma and does not accept healthy volunteers. The study is controlled but is not randomized or double blinded.