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MK-6916

Phase 2

Pain Management | Small molecule | Pain |Merck & Company, Inc.|Trials Updated: Oct 7, 2026

MK-6916 development status

Highest phase Phase 2
Registered trials 3 across 1 sponsor since Feb 2025

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment380

FDA Designations

No designations recorded

MK-6916 clinical trials

MK-6916 · 1 trial · 1 indication

Phase 2 1
NCT07862595A Clinical Trial of MK-6916 in Participants With Pain After Bunion Removal Surgery (MK-6916-007)Pain Management
NOT YET_RECRUITING380 Analytics
PHASE2NOT YET_RECRUITING
A Clinical Trial of MK-6916 in Participants With Pain After Bunion Removal Surgery (MK-6916-007)
Pain ManagementUnlock trial analytics

Study Endpoints

Primary Endpoints

Sum of the Pain Intensity Difference 0 to 48 Hours (SPID48)
Up to approximately 48 hours

The Sum of the Pain Intensity Difference (SPID) scale quantifies cumulative pain reduction to measure how effectively a pain medication or treatment works over a specific period of time. Pain is assessed by the participant using the Numeric Pain Rating Scale (NPRS) Brief Pain Inventory-Short Form (BPI-SF) "Pain Now" Item, which is a single item questionnaire asking the participant to rate their "pain now" using the numeric rating scale (0= No pain; 10= pain as bad as you can imagine; a higher score indicates more pain). The current pain score is subtracted from the baseline score at regular intervals at which pain is assessed to find the "Pain Intensity Difference". These differences are multiplied by the time interval and added together to yield the SPID. A higher SPID score indicates that a participant experienced more significant, cumulative pain relief during the study window. The least squares (LS) means and standard error will be provided for each treatment group.

Secondary Endpoints

Number of Participants Who Experience One or More Adverse Events (AEs)
Up to approximately 16 days
Number of Participants Who Discontinue Study Intervention Due to an AE
Up to approximately 48 hours
Time to ≥2-Point Improvement on the Numeric Pain Rating Scale (NPRS) Brief Pain Inventory-Short Form (BPI-SF) "Pain Now" Single Item Questionnaire
Baseline and up to approximately 48 hours
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Study Design & Arms

AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Arm 1: MK-6916 120 milligrams (mg)EXPERIMENTALParticipants will receive MK-6916 120 mg every 12 hours (q12h) for 48 hours. Participants may receive rescue medication every 6 hours (q6h). Participants will be encouraged to refrain from receiving rescue medication during the first 90 minutes after the first dose of study intervention.
Arm 2: MK-6916 70 mgEXPERIMENTALParticipants will receive MK-6916 70 mg every 12 hours (q12h) for 48 hours. Participants may receive rescue medication every 6 hours (q6h). Participants will be encouraged to refrain from receiving rescue medication during the first 90 minutes after the first dose of study intervention.
Arm 3: hydrocodone 5 mg /acetaminophen 325 mg (HB/APAP)ACTIVE_COMPARATORParticipants will receive hydrocodone 5 mg/acetaminophen 325 mg (HB/APAP) every 6 hours (q6h) for 48 hours. Participants may receive rescue medication q6h. Participants will be encouraged to refrain from receiving rescue medication during the first 90 minutes after the first dose of study intervention.
Arm 4: MK-6916 PlaceboPLACEBO_COMPARATORParticipants will receive MK-6916 placebo every 6 hours (q6h). Participants may receive rescue medication q6h for 48 hours. Participants will be encouraged to refrain from receiving rescue medication during the first 90 minutes after the first dose of study intervention.

Interventions

NameTypeDescription
MK-6916DRUG120 mg or 70 mg oral tablet given every 12 hours (q12h) for 48 hours.
Hydrocodone/acetaminophen (HB/APAP)DRUGHydrocodone 5 mg/acetaminophen 325 mg given as oral capsule every 6 hours (q6h) for 48 hours.
MK-6916 PlaceboDRUGPlacebo oral table given every 6 hours (q6h) for 48 hours
Rescue MedicationDRUGParticipants requesting rescue medication may receive protocol-specified rescue medication. Rescue treatment consists of open-label oxycodone immediate release (IR) oral tablet 5 mg given every 6 hours (q6h) (given in 5 mg increments for a maximum dose of 10 mg q6h). Participants should be encouraged to wait 1 hour after administration of the first dose of oxycodone 5 mg before administering a second dose. Participants will be encouraged to refrain from receiving rescue medication during the first 90 minutes after the first dose of study intervention.
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Eligibility Criteria

Age Range18 Years to 75 Years
SexALL
Healthy VolunteersNo

Inclusion Criteria: The main inclusion criteria include but are not limited to the following: * Has a bunion and is scheduled to undergo a primary, unilateral bunionectomy that includes distal first metatarsal osteotomy (ie, Austin procedure) with internal fixation * Has a body mass index (BMI) of...

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Competitive Landscape -Obesity Management 14 trials (matched to "Pain Management")

Top 2 of 3 competitors

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Recent Changes (Last 90 Days)

LOWOct 7, 2026NCT07862595NEW_TRIAL: changed
LOWOct 7, 2026NCT07862595NEW_TRIAL: changed

Frequently asked questions about MK-6916

What is MK-6916?

MK-6916 is an investigational small molecule being developed by Merck & Company, Inc. (MRK) for pain management. It is currently in Phase 2 clinical development and has not been approved by the FDA. The program is evaluating the drug in patients experiencing pain following bunion removal surgery.

What is MK-6916 used for?

MK-6916 is being studied for pain management, specifically in patients with pain after bunion removal surgery. It is an investigational therapy in Phase 2 development and is not approved for any indication. The clinical program is designed to assess its potential in treating acute post-surgical pain.

Who makes MK-6916?

MK-6916 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 clinical program evaluating the drug in pain management, including the Phase 2 trial in patients recovering from bunion removal surgery.

What phase is MK-6916 in?

MK-6916 is in Phase 2 clinical development. It is an investigational drug and has not been approved by the FDA for any indication. The ongoing Phase 2 study is evaluating the drug in patients with pain after bunion removal surgery.

What clinical trials is MK-6916 in?

MK-6916 is being evaluated in one Phase 2 clinical trial, NCT07862595, titled A Clinical Trial of MK-6916 in Participants With Pain After Bunion Removal Surgery (MK-6916-007). The trial is not yet recruiting, plans to enroll 380 participants aged 18 years and older, and is randomized, double-blind, and placebo-controlled.