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Calderasib OCT

Phase 1

Healthy | Small molecule | Other |Merck & Company, Inc.|Last Updated: Feb 11, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedCONTROLLED
Total Trials1
Total Enrollment52

FDA Designations

BREAKTHROUGH_THERAPY

Clinical trial landscape

Calderasib OCT · 1 trial · 1 indication

Phase 1 1
NCT06942741A Study to Evaluate the Effect of Formulation and Food on Calderasib (MK-1084) in Healthy Adult Participants (MK-1084-011)Healthy
COMPLETED52 Analytics
PHASE1COMPLETED
A Study to Evaluate the Effect of Formulation and Food on Calderasib (MK-1084) in Healthy Adult Participants (MK-1084-011)
HealthyUnlock trial analytics

Study Endpoints

Primary Endpoints

Parts 1 and 2: Area Under the Concentration-Time Curve From Time 0 to the Time of the Last Quantifiable Concentration (AUC0-last) of Calderasib
At designated timepoints (up to approximately 2 days postdose)

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

Parts 1 and 2: Area Under the Concentration-Time Curve From Time 0 to Infinity (AUC0-inf) of Calderasib
At designated timepoints (up to approximately 2 days postdose)

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

Parts 1 and 2: Area Under the Concentration-Time Curve from Time 0 to 24 hours (AUC0-24) of Calderasib
At designated timepoints (up to 24 hours postdose)

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

Parts 1 and 2: Maximum Plasma Concentration (Cmax) of Calderasib
At designated timepoints (up to approximately 2 days postdose)

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

Parts 1 and 2: Plasma Concentration of Calderasib at 24 Hours Postdose (C24)
At designated timepoints (up to 24 hours postdose)

Blood samples will be collected to determine the C24 of calderasib.

Parts 1 and 2: Time to Maximum Plasma Concentration (Tmax) of Calderasib
At designated timepoints (up to approximately 2 days postdose)

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

Parts 1 and 2: Apparent Terminal Half-life (t1/2) of Calderasib
At designated timepoints (up to approximately 2 days postdose)

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

Parts 1 and 2: Apparent Clearance (CL/F) of Calderasib
At designated timepoints (up to approximately 2 days postdose)

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

Parts 1 and 2: Apparent Volume of Distribution During Terminal Phase (Vz/F) of Calderasib
At designated timepoints (up to approximately 2 days postdose)

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

Part 2: Plasma Lag Time (tlag) of Calderasib
At designated timepoints (up to approximately 2 days postdose)

Blood samples will be collected to determine the tlag of calderasib.

Secondary Endpoints

Parts 1 and 2: Number of Participants Who Experience an Adverse Event (AE)
Up to approximately 7 weeks
Parts 1 and 2: Number of Participants Who Discontinue Study Treatment Due to an AE
Up to approximately 1 week
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelCROSSOVER
PurposeBASIC_SCIENCE

Treatment Arms

ArmTypeDescription
Part 1 Calderasib Treatment AEXPERIMENTALParticipants will be administered low dose calderasib as an oral-compressed tablet (OCT) on Day 1 under fasted conditions (on an empty stomach after a ≥8-hour fast)
Part 1 Calderasib Treatment BEXPERIMENTALParticipants will be administered low dose calderasib as a film-coated tablet (FCT) on Day 1 under fasted conditions (on an empty stomach after a ≥8-hour fast)
Part 2 Calderasib Treatment CEXPERIMENTALParticipants will be administered higher dose calderasib as a FCT on Day 1 under fasted conditions (on an empty stomach after a ≥8-hour fast)
Part 2 Calderasib Treatment DEXPERIMENTALParticipants will be administered higher dose calderasib as a FCT on Day 1 under fed conditions (after a high-fat meal)

Interventions

NameTypeDescription
Calderasib OCTDRUGOral tablet
Calderasib FCTDRUGOral tablet
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Eligibility Criteria

Age Range18 Years to 60 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: The main inclusion criteria include but are not limited to the following: \- Has a body mass index ≥18.0 and ≤32.0 kg/m\^2 Exclusion Criteria: The main exclusion criteria include but are not limited to the following: * Has a history or presence of a clinically significant me...

Countries:United States
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Frequently asked questions about Calderasib OCT

What is Calderasib OCT?

Calderasib OCT is an investigational small molecule being developed by Merck & Company, Inc. (MRK). It is currently in Phase 1 clinical development. The drug has been studied in healthy adult participants to evaluate the effect of formulation and food on its pharmacokinetics.

What is Calderasib OCT used for?

Calderasib OCT is being studied in healthy volunteers as part of early clinical development. The completed Phase 1 trial assessed how different formulations and food intake affect the drug's behavior in the body. It is not yet approved for any medical condition and remains investigational.

Who makes Calderasib OCT?

Calderasib OCT is being developed by Merck & Company, Inc., a pharmaceutical company traded on the New York Stock Exchange under the ticker MRK. The company is conducting clinical trials to evaluate the drug's properties in healthy participants.

What phase is Calderasib OCT in?

Calderasib OCT is in Phase 1 clinical development. One Phase 1 trial has been completed, involving 52 healthy adult participants in the United States. The drug has received a Breakthrough Therapy designation from the FDA, though it remains investigational and not yet approved.

What clinical trials is Calderasib OCT in?

Calderasib OCT has one completed clinical trial, NCT06942741, titled 'A Study to Evaluate the Effect of Formulation and Food on Calderasib (MK-1084) in Healthy Adult Participants (MK-1084-011).' This Phase 1 study enrolled 52 healthy adults in the United States and was a controlled, randomized trial.

Is Calderasib OCT the same as MK-1084?

Yes, Calderasib OCT is also known as MK-1084. The clinical trial NCT06942741 refers to the drug as Calderasib (MK-1084), indicating that both names refer to the same investigational compound being developed by Merck & Company, Inc.