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CompletedNCT07219550Updated Aug 4, 2026

A Study of Calderasib (MK-1084) in Participants With Hepatic Impairment and Healthy Volunteers (MK-1084-017)

A Phase 1 interventional study of Calderasib in Healthy and Hepatic Impairment, sponsored by Merck Sharp & Dohme LLC. Completed at 3 sites in United States. Open to participants aged 18 Years to 80 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-08-04.

Sponsored by Merck Sharp & Dohme LLC · Phase 1, Interventional, and Basic science

Phase
Phase 1
Study type
Interventional
Enrollment
32
Allocation
Not applicable
Ages
18 Years to 80 Years
Sex
All
01

Study summary

The purpose of this study is to learn what happens to calderasib levels in a person's body over time. Researchers will measure what happens to calderasib levels in the body when it is given to participants with hepatic (liver) impairment and healthy participants. Researchers also want to learn about the safety of MK-1084 when it is given to people with hepatic impairment and if people with hepatic impairment can tolerate it.

02

Conditions studied

  • Healthy
  • Hepatic Impairment
03

In context

Lead sponsor

Merck Sharp & Dohme LLC is the lead sponsor of 2,114 studies on the registry; 133 are open to participants now.

Of its 489 completed or terminated interventional studies of FDA-regulated products, 362 (74%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Eligibility criteria

The main inclusion criteria include but are not limited to:

All participants:

  • Has a body mass index (BMI) between 18.0 and 42.0 kg/m\^2

Participants with hepatic impairment (HI):

  • Has a diagnosis of chronic, stable hepatic insufficiency at screening with features of cirrhosis

Healthy volunteers:

  • Is medically healthy with no clinically significant medical history

The main exclusion criteria include but are not limited to:

All participants:

  • Has a history of gastrointestinal disease which may affect food and drug absorption
  • Has a history of cancer (malignancy)
  • Has a positive result for human immunodeficiency virus (HIV)
  • Has had major surgery and/or donated or lost significant volume of blood within 56 days prior to dosing

Participants with HI:

  • Has had severe complications of liver disease within the preceding 3 months of screening
  • Has a history of recent (within 3 months prior to screening) variceal bleeds
  • Has evidence of hepatorenal syndrome
  • Is not in sufficient health, with regard to stability of HI, to undergo participation in the study with anticipated survival of \< 3 months
  • Has a history of liver or other solid organ transplantation
  • Has an active infection requiring systemic therapy
  • Requires paracentesis more often than 2 times per month
  • Has transjugular intrahepatic portosystemic shunt and/or has undergone portacaval shunting
  • Has received antiviral and/or immune modulating therapy for hepatitis B virus (HBV) or hepatitis C virus (HCV) within 90 days prior to dosing
  • Is using HIV protease inhibitors
  • Is positive for Hepatitis B surface antigen (HBsAg)
  • Is positive for HCV

Healthy volunteers:

  • Has positive results for HBsAg or HCV
05

Study design

Phase
Phase 1
Primary purpose
Basic science
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
32 participants (actual)

Study arms

  • Experimental
    Calderasib

    All participants will receive a single oral dose of calderasib on Day 1.

    Drug: Calderasib

Interventions

  • DrugCalderasib

    Oral Tablet

    Also known as: MK-1084

06

What researchers measure

Primary outcomes

  1. Area Under the Concentration Versus Time Curve from 0 to the Time of the Last Quantifiable Sample (AUC0-last) of Calderasib

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

    Time frame: At designated timepoints up to approximately 7 days post-dose

  2. Area Under the Concentration Versus Time Curve from 0 to Infinity (AUC0-inf) of Calderasib

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

    Time frame: At designated timepoints up to approximately 7 days post-dose

  3. Area Under the Concentration Versus Time Curve from 0 to 24 hours post-dose (AUC0-24) of Calderasib

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

    Time frame: Up to approximately 24 hours post-dose

  4. Maximum Observed Drug Concentration (Cmax) of Calderasib

    Blood samples will be collected to determine the Cmax of calderasib in plasma.

    Time frame: At designated timepoints up to approximately 7 days post-dose

  5. Time to Maximum Observed Drug Concentration (Tmax) of Calderasib

    Blood samples will be collected to determine the Tmax of calderasib in plasma.

    Time frame: At designated timepoints up to approximately 7 days post-dose

  6. Apparent Terminal Half-life (t1/2) of Calderasib

    Blood samples will be collected to determine the t1/2 of calderasib in plasma.

    Time frame: At designated timepoints up to approximately 7 days post-dose

  7. Apparent Clearance (CL/F) of Calderasib

    Blood samples will be collected to determine the CL/F of calderasib in plasma.

    Time frame: At designated timepoints up to approximately 7 days post-dose

  8. Apparent Volume of Distribution During Terminal Phase (Vz/F) of Calderasib

    Blood samples will be collected to determine the Vz/F of calderasib in plasma.

    Time frame: At designated timepoints up to approximately 7 days post-dose

Secondary outcomes

  1. Number of Participants Who Experience an Adverse Event (AE)

    An AE is any untoward medical occurrence associated with the use of a drug in humans, whether or not considered drug related. The number of participants experiencing AEs will be reported.

    Time frame: Up to approximately 14 days

  2. Number of Participants Who Discontinue Study Due to an AE

    An AE is any untoward medical occurrence associated with the use of a drug in humans, whether or not considered drug related. The number of participants discontinuing the study due to AEs will be reported.

    Time frame: Up to approximately 14 days

07

Study locations

3 sites
  • Arizona Clinical Trials ( Site 0003)
    Chandler, Arizona 85225, United States
  • Orlando Clinical Research Center ( Site 0001)
    Orlando, Florida 32809, United States
  • The Texas Liver Institute ( Site 0002)
    San Antonio, Texas 78215, United States
08

References and documents

Individual participant data

Plan to share: Yes — https://trialstransparency.msdclinicaltrials.com/pdf/ProcedureAccessClinicalTrialData.pdf

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 4, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07219550
Lead sponsor
Merck Sharp & Dohme LLC
Responsible party
Sponsor
First posted
Oct 22, 2025
Start date
Nov 5, 2025
Primary completion
Jul 15, 2026
Completion
Jul 15, 2026
Last update
Aug 4, 2026

Study contacts

Medical Director
study director · Merck Sharp & Dohme LLC

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.

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