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MK-5684

Phase 1

Kidney Failure, Chronic | Small molecule | Nephrology |Merck & Company, Inc.|Last Updated: Oct 23, 2025

Success Probability

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Market & Valuation

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Trial Design

CONTROLLED
Total Trials1
Total Enrollment24

FDA Designations

No designations recorded

Clinical trial landscape

MK-5684 · 2 trials · 6 indications

Phase 1 2
NCT06814132A Study to Evaluate the Effect of MK-5684 in Male Participants With Severe Renal Impairment (RI) and With End-stage Renal Disease (ESRD) (MK-5684-010)Kidney Failure, Chronic
COMPLETED24 Analytics
NCT06554639A Drug-Drug Interaction Study of Diltiazem and MK-5684 in Healthy Adult Male Participants (MK-5684-011)Prostatic Neoplasms
COMPLETED12 Analytics
PHASE1COMPLETED
A Study to Evaluate the Effect of MK-5684 in Male Participants With Severe Renal Impairment (RI) and With End-stage Renal Disease (ESRD) (MK-5684-010)
Kidney Failure, ChronicUnlock trial analytics
PHASE1COMPLETED
A Drug-Drug Interaction Study of Diltiazem and MK-5684 in Healthy Adult Male Participants (MK-5684-011)
Prostatic NeoplasmsUnlock trial analytics

Study Endpoints

Primary Endpoints

Area Under the Concentration Versus Time Curve from 0 to Infinity (AUC0-inf) After a Single Dose of MK-5684
At protocol specific time points pre-dose and up to 72 hours post-dose

Blood samples will be collected to determine the AUC0-inf of MK-5684 in plasma.

Area Under the Concentration Versus Time Curve From 0 to the Time of the Last Quantifiable Sample (AUC0-last) of MK-5684
At protocol specific time points pre-dose and up to 72 hours post-dose

Blood samples will be collected to determine the AUC0-last of MK-5684 in plasma.

Area Under the Concentration Versus Time Curve From 0 to 24 Hours After Dosing (AUC0-24) of MK-5684
At protocol specific time points pre-dose and up to 24 hours post-dose

Blood samples will be collected to determine the AUC0-24 of MK-5684 in plasma.

Maximum Observed Drug Concentration (Cmax) After the Administration of a Given Dose of MK-5684
At protocol specific time points pre-dose and up to 72 hours post-dose

Blood samples will be collected to determine the Cmax of MK-5684 in plasma.

Time to Maximum Observed Plasma Drug Concentration (Tmax) of MK-5684
At protocol specific time points pre-dose and up to 72 hours post-dose

Blood samples will be collected to determine the Tmax of MK-5684 in plasma.

Apparent Terminal Half-Life (t½) of MK-5684
At protocol specific time points pre-dose and up to 72 hours post-dose

Blood samples will be collected to determine the t1/2 of MK-5684 in plasma.

Apparent Clearance (CL/F) of MK-5684
At protocol specific time points pre-dose and up to 72 hours post-dose

Blood samples will be collected to determine the CL/F of MK-5684 in plasma.

Apparent Volume of Distribution During Terminal Phase (Vz/F) of MK-5684
At protocol specific time points pre-dose and up to 72 hours post-dose

Blood samples will be collected to determine the Vz/F of MK-5684 in plasma.

Area under the concentration versus time curve from 0 to infinity after single dosing (AUC0-inf) of MK-5684 in plasma
Predose, and at designated timepoints up to 120 hours post-dose

AUC0-inf of MK-5684 in plasma will be determined.

Area under the concentration versus time curve from 0 to last quantifiable sample (AUC0-last) of MK-5684 in plasma
Predose, and at designated timepoints up to 120 hours post-dose

AUC0-last of MK-5684 in plasma will be determined.

Area under the concentration versus time curve from 0 to Hour 24 (AUC0-24) of MK-5684 in plasma
Predose, and at designated timepoints up to 24 hours post-dose

AUC0-24 of MK-5684 in plasma will be determined.

Maximum concentration (Cmax) of MK-5684 in plasma
Predose, and at designated timepoints up to 120 hours post-dose

Cmax of MK-5684 in plasma will be determined.

Time to Maximum concentration (Tmax) of MK-5684 in plasma
Predose, and at designated timepoints up to 120 hours post-dose

Tmax of MK-5684 in plasma will be determined.

Apparent terminal half-life (t1/2) of MK-5684 in plasma
Predose, and at designated timepoints up to 120 hours post-dose

t1/2 of MK-5684 in plasma will be determined.

Apparent Clearance (CL/F) of MK-5684 in plasma
Predose, and at designated timepoints up to 120 hours post-dose

CL/F of MK-5684 in plasma will be determined.

Apparent volume of distribution during terminal phase (Vz/F) of MK-5684 in plasma
Predose, and at designated timepoints up to 120 hours post-dose

Vz/F of MK-5684 in plasma will be determined.

Secondary Endpoints

Number of Participants who Experience an Adverse Event (AE)
Up to ~21 days
Number of Participants who Discontinue Study Intervention Due to an AE
Up to ~7 days
Dialysis Clearance (CLD) of MK5684 Based on Plasma
At protocol specific time points pre-dose and up to 4.5 hours post-dose
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeBASIC_SCIENCE

Treatment Arms

ArmTypeDescription
Group 1: Severe Renal Impairment (RI)EXPERIMENTALParticipants will receive a single oral dose of MK-5684 under fasting conditions (on an empty stomach after a 10-hour overnight fast) on Day 1 and a single dose of Hormone replacement therapy (HRT) (prednisone and fludrocortisone) administered approximately 4.5 hours after MK-5684 dosing under fed conditions (eating a normal meal).
Group 2: End-stage renal disease (ESRD)EXPERIMENTALParticipants will receive a single oral dose of MK-5684 under fasting conditions (on an empty stomach after a 10-hour overnight fast) in Period 1 and Period 2. In Period 1, participants will receive a single oral dose of MK-5684 approximately 30 minutes prior to their normally scheduled hemodialysis (HD), followed by HRT under fed conditions (eating a normal meal) 4.5 hours after MK-5684 dosing. In Period 2, participants will receive a single oral dose of MK-5684 immediately followed by completion of their normally scheduled HD, and by HRT under fed conditions (eating a normal meal) 4.5 hours after MK-5684 dosing.
Group 3: Healthy ParticipantsEXPERIMENTALParticipants will receive a single oral dose of MK-5684 under fasting conditions (on an empty stomach after a 10-hour overnight fast) on Day 1 and a single dose of Hormone replacement therapy (HRT) (prednisone and fludrocortisone) administered approximately 4.5 hours after MK-5684 dosing under fed conditions (eating a normal meal).
MK-5684 Period 1EXPERIMENTALOn Day 1 a single dose of MK-5684 will be administered under fasting conditions and a single dose of HRT (prednisone and fludrocortisone) will be administered under fed conditions approximately 4.5 hours after MK-5684 dosing.
MK-5684 Period 2EXPERIMENTALThere will be a washout of at least 5 days between MK-5684 dosing in Period 1 and the first diltiazem dosing in Period 2. In Period 2, diltiazem will be administered once daily (QD) for 6 consecutive days with a single dose of MK-5684 coadministered on Day 2 under fasting conditions. HRT (prednisone and fludrocortisone) will be administered under fed conditions QD on Days 2 through 5, approximately 4.5 hours after MK-5684 and/or diltiazem dosing.

Interventions

NameTypeDescription
MK-5684DRUGOral tablet
PrednisoneDRUGOral tablet
Fludrocortisone acetateDRUGOral tablet
Diltiazem hydrocholorideDRUGAdministered at a dose of 240 mg per dosing regimen via oral capsule (extended-release).
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Eligibility Criteria

Age Range18 Years to 85 Years
SexMALE
Healthy VolunteersYes
Study Sites2

Inclusion Criteria: Inclusion criteria include, but are not limited to: All Participants * Is a continuous non-smoker or moderate smoker (≤ 10 cigarettes per day or equivalent) for at least 3 months prior to the first dosing * Has a body mass index (BMI) ≥ 18.0 and ≤ 42.0 kg/m\^2 at the screening...

Countries:United States
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Frequently asked questions about MK-5684

What is MK-5684 used for?

MK-5684 is an investigational small molecule being studied for use in prostatic neoplasms and chronic kidney failure. It is in Phase 1 clinical development by Merck & Company, Inc. (MRK). The drug is not approved and remains under investigation in clinical trials.

Who makes MK-5684?

MK-5684 is being developed by Merck & Company, Inc., which trades under the ticker MRK. The company is conducting Phase 1 clinical trials to evaluate the drug's safety and pharmacokinetics in healthy volunteers and patients with certain conditions.

What phase is MK-5684 in?

MK-5684 is in Phase 1 clinical development. It is an investigational drug and has not been approved by regulatory authorities. Two Phase 1 studies have been completed, both involving male participants, to assess drug interactions and the effects of renal impairment.

What clinical trials is MK-5684 in?

MK-5684 has been studied in two completed Phase 1 trials. NCT06554639 evaluated a drug-drug interaction with diltiazem in healthy adult males. NCT06814132 assessed the effect of MK-5684 in males with severe renal impairment or end-stage renal disease. Both trials were conducted in the United States.

Is MK-5684 the same as any other drug?

MK-5684 is the primary name used in clinical trials. No alternative names have been reported for this investigational drug. It is being studied under this identifier by Merck & Company, Inc. in ongoing research.