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MK-1406

Phase 3

Undisclosed | Small molecule | Other |Merck & Company, Inc.|Trials Updated: Oct 5, 2026

MK-1406 development status

Highest phase Phase 3 run by Cidara Therapeutics Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA) (NCT07159763)
Phase scored for MRKPhase 1
Registered trials 2 across 2 sponsors since Sep 2025

Success Probability

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Market & Valuation

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Trial Design

RandomizedCONTROLLED
Total Trials1
Total Enrollment400

FDA Designations

No designations recorded

MK-1406 clinical trials

MK-1406 · 1 trial · 1 indication

Phase 1 1
NCT07743151A Clinical Trial of MK-1406 in Healthy Participants (MK-1406-008)Healthy
RECRUITING400 Analytics
PHASE1RECRUITING
A Clinical Trial of MK-1406 in Healthy Participants (MK-1406-008)
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Study Endpoints

Primary Endpoints

Part 1: Area Under the Concentration Time Curve From Time 0 to 4 Weeks (AUC0-4w) of MK-1406
Predose and at designated timepoints up to 4 weeks postdose

Blood samples will be collected at pre-specified timepoints to determine the AUC0-4w of MK-1406.

Part 1 and Part 2: Number of Participants Who Experience One or More Adverse Events (AEs)
Up to approximately 43 days postdose

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.

Part 1 and Part 2: Number of Participants Who Experience At Least One Solicited Injection-Site Reaction
Up to approximately 7 days postdose

Solicited injection-site reactions include tenderness, pain, redness/erythema, and swelling. Participants will record injection site reactions using a paper diary. The number of participants with solicited injection-site reactions will be reported.

Part 1 and Part 2: Number of Participants Who Discontinue Study Due to an AE
Up to approximately 43 days postdose

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. The number of participants who discontinue study due to an AE will be reported.

Secondary Endpoints

Part 1: Maximum Plasma Concentration (Cmax) of MK-1406
Predose and at designated timepoints up to 4 weeks postdose
Part 1: Time to Maximum Plasma Concentration (Tmax) of MK-1406
Predose and at designated timepoints up to 4 weeks postdose
Part 1: Plasma Concentration of MK-1406 at 4 Weeks (C4w)
Predose and at designated timepoints up to 4 weeks postdose
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeBASIC_SCIENCE

Treatment Arms

ArmTypeDescription
MK-1406 3-InjectionsEXPERIMENTALParticipants receive 3 subcutaneous (SQ) injections of MK-1406 on Day 1.
MK-1406 2-InjectionsEXPERIMENTALParticipants receive 2 SQ injections of MK-1406 on Day 1.

Interventions

NameTypeDescription
MK-1406DRUGSubcutaneous administration
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Eligibility Criteria

Age Range18 Years to 64 Years
SexALL
Healthy VolunteersYes
Study Sites4

Inclusion Criteria: The main inclusion criteria include but are not limited to the following: * Is in good health * Has body mass index (BMI) 18.0 to 32.0 kg/m\^2 Exclusion Criteria: The main exclusion criteria include but are not limited to the following: * History of clinically significant en...

Countries:United States
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Recent Changes (Last 90 Days)

LOWOct 5, 2026NCT07743151lastUpdatePostDate: changed
LOWOct 5, 2026NCT07743151lastUpdatePostDate: changed
LOWSep 24, 2026NCT07743151Status: NOT_YET_RECRUITING → RECRUITING
LOWSep 24, 2026NCT07743151Status: NOT_YET_RECRUITING → RECRUITING
LOWAug 3, 2026NCT07743151NEW_TRIAL: changed
LOWAug 3, 2026NCT07743151NEW_TRIAL: changed

Frequently asked questions about MK-1406

What is MK-1406?

MK-1406 is an investigational small molecule drug being developed by Merck & Company, Inc. It is currently in Phase 1 clinical development. The specific disease or condition it is intended to treat has not been disclosed, and the program sits outside the main therapeutic areas typically reported for Merck's pipeline.

Who is developing MK-1406?

MK-1406 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 for this asset.

What phase is MK-1406 in?

MK-1406 is in Phase 1 clinical development. It is an investigational drug and is not approved for any use. The program currently has one trial listed, which is actively recruiting participants.

What clinical trials is MK-1406 in?

MK-1406 is being studied in one clinical trial, NCT07743151, titled A Clinical Trial of MK-1406 in Healthy Participants (MK-1406-008). The trial is a Phase 1 study that is currently recruiting, with a planned enrollment of 400 participants in the United States.

What is the design of the MK-1406 Phase 1 trial?

The MK-1406 Phase 1 trial, NCT07743151, is a controlled, randomized study that is not double blinded. It enrolls 400 healthy volunteers age 18 and older, with all sexes eligible. The study is being conducted in the United States and is currently recruiting participants.

Is MK-1406 tested in healthy volunteers?

Yes. The Phase 1 trial of MK-1406, NCT07743151, is conducted in healthy participants rather than in patients with a specific disease. It is a controlled, randomized study enrolling 400 healthy volunteers age 18 and older in the United States.