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MK-5475

Phase 1

Healthy | Small molecule | Other |Merck & Company, Inc.|Last Updated: Oct 29, 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
UNCONTROLLEDBiomarker
Total Trials1
Total Enrollment8
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT06777602A Clinical Study To Understand How Radiolabeled MK-5475 Is Taken Up By The Body, Broken Down And Then Removed From The Body in Healthy Participants (MK-5475-011)PHASE1 COMPLETED 8Aug 15, 2022Oct 25, 2022Oct 29, 20251 United States
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Study Endpoints
Primary Endpoints
Amount Excreted in Urine (Aeu)
At designated time points (Up to ~ 23 days)

Amount of \[14C\]MK-5475 and its metabolites excreted in urine (Aeu) derived from urine collections at each sampling interval.

Cumulative Aeu
At designated time points (Up to ~ 23 days)

Cumulative amount of \[14C\] MK-5475 and its metabolites excreted in urine derived from urine collections at each sampling interval

Percentage Excreted in Urine (feu)
At designated time points (Up to ~ 23 days)

Percentage of \[14C\]MK-5475 and its metabolites excreted in urine derived from urine collections at each sampling interval.

Cumulative feu
At designated time points (Up to ~ 23 days)

Cumulative percentage of \[14C\]MK-5475 and its metabolites excreted in urine derived from urine collections at each sampling interval.

Amount Excreted in Feces (Aef)
At designated time points (Up to ~ 23 days)

Amount of \[14C\]MK-5475 and its metabolites excreted in feces derived from feces collections at each sampling interval.

Cumulative Aef
At designated time points (Up to ~ 23 days)

Cumulative amount of \[14C\]MK-5475 and its metabolites excreted in feces derived from feces collections at each sampling interval.

Cumulative Fef
At designated time points (Up to ~ 23 days)

Cumulative percentage of \[14C\]MK-5475 and its metabolites excreted in feces derived from feces collections at each sampling interval.

AUC0-t
At designated time points (Up to ~ 23 days)

Area under concentration time curve (AUC) from time zero to the last quantifiable concentration derived from the whole blood and plasma concentration-time profiles following IV administration of \[14C\]MK-5475.

AUC0-infinity
At designated time points (Up to ~ 23 days)

AUC from time zero extrapolated to infinity derived from the whole blood and plasma concentration-time profiles following IV administration of \[14C\]MK-5475.

Maximum Plasma Concentration (Cmax)
At designated time points (Up to ~ 23 days)

Cmax is the measure of the maximum amount of \[14C\]MK-5475 in the plasma after the dose is given.

Half-life t1/2
At designated time points (Up to ~ 23 days)

T1/2 is the time required for \[14C\]MK-5475 concentration in the plasma to decrease by 50%.

Time to Maximum Plasma Concentration (Tmax),
At designated time points (Up to ~ 23 days)

Tmax is a measure of the time to reach the maximum concentration in the plasma after the \[14C\]MK-5475 dose.

Apparent Total Clearance (CL; MK-5475 only)
At designated time points (Up to ~ 23 days)

CL is defined as apparent total clearance of \[14C\]MK-5475 from plasma after IV administration

Apparent Volume of Distribution (Vz; MK-5475 only)
At designated time points (Up to ~ 23 days)

Vz is defined as apparent volume of distribution of \[14C\]MK-5475 during terminal phase after IV administration.

AUC0-infinity Plasma [14C]MK-5475/Total Radioactivity Ratio
At designated time points (Up to ~ 23 days)

AUC time zero to infinity (0-∞) of \[14C\]MK-5475 in plasma/AUC0-∞ of total radioactivity in plasma.

Secondary Endpoints
Number of Participants Who Experience an Adverse Event (AE)
Up to ~ 30 days
Number of Participants Who Discontinue Study Due to an AE
Up to ~ 30 days
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeBASIC_SCIENCE
Treatment Arms
ArmTypeDescription
[14C] MK-5475EXPERIMENTAL\[14C\] MK-5475 is administered as single IV bolus dose of 100μg on Day 1.
Interventions
NameTypeDescription
[14C] MK-5475DRUG\[14C\] MK-5475 is administered as a single IV bolus dose in healthy male participants on Day 1.
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Eligibility Criteria
Age Range18 Years — 50 Years
SexMALE
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Is in good health. * Body mass index (BMI) \>18 and ≤32 kg/m2, inclusive. Exclusion Criteria: * Has history of clinically significant endocrine, gastrointestinal, cardiovascular, hematological, hepatic, immunological, renal, respiratory, genitourinary, or major neurological ...

Countries:United States
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