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CompletedNCT06575933Updated Feb 11, 2026

A Study of Calderasib (MK-1084) With Midazolam and Digoxin in Healthy Participants (MK-1084-009)

A Phase 1 interventional study of Calderasib and Midazolam in Non-small Cell Lung Cancer, sponsored by Merck Sharp & Dohme LLC. Completed at 1 site in United States. Open to participants aged 18 Years to 55 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-02-11.

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

From the registry’s dates

  • Primary completion was Oct 2024, 1 year 11 months ago, and no results have been posted to the registry.
Phase
Phase 1
Study type
Interventional
Enrollment
28
Allocation
Non-randomized
Ages
18 Years to 55 Years
Sex
All
01

Study summary

The goal of the study is to see what happens to levels of midazolam and digoxin in a person's body over time (a pharmacokinetic or PK study). Researchers will compare what happens to midazolam and digoxin in the body when it is given with and without another medicine called calderasib. Researchers are testing if digoxin and midazolam levels in the body are different when digoxin and midazolam are given with or without calderasib.

02

Conditions studied

  • Non-small Cell Lung Cancer
03

In context

Carcinoma, Non-Small-Cell Lung

6,488 studies on the registry are indexed under Carcinoma, Non-Small-Cell Lung; 1,632 are open to participants now.

This study's enrollment of 28 is below the median of 62 across 5,213 interventional studies indexed under Carcinoma, Non-Small-Cell Lung.

Browse Carcinoma, Non-Small-Cell Lung studies →

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 55 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

The key inclusion criteria include but are not limited to the following:

  • Is medically healthy with no clinically significant medical history, physical examination, laboratory profiles, vitals signs, and electrocardiograms (ECGs)
  • Has a body mass index (BMI) ≥18 and ≤32 kg/m\^2, inclusive

Exclusion criteria

Exclusion Criteria:

The key exclusion criteria include but are not limited to the following:

  • Has a medical history that may confound the results of the study or poses an additional risk to the participant in the study
  • Has a history or presence of hypersensitivity or idiosyncratic reaction to the study drugs or related compounds
05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Sequential assignment
Masking
None (open label)
Enrollment
28 participants (actual)

Study arms

  • Experimental
    Period 1: Midazolam and Digoxin

    Participants will receive a single oral dose of midazolam and a single oral dose of digoxin on Day 1.

    Drug: Midazolam · Drug: Digoxin

  • Experimental
    Period 2: Calderasib, Midazolam, and Digoxin

    A washout period of at least 10 days will occur following midazolam and digoxin dosing in Period 1 and the first calderasib dosing in Period 2. Participants will receive calderasib once daily on Days 1 through Day 15 with a single oral dose of midazolam on Days 1, 6, and 14 and a single oral dose of digoxin on Days 1 and 11.

    Drug: Calderasib · Drug: Midazolam · Drug: Digoxin

Interventions

  • DrugCalderasib

    Oral administration

    Also known as: MK-1084

  • DrugMidazolam

    Oral administration

  • DrugDigoxin

    Oral administration

06

What researchers measure

Primary outcomes

  1. Area Under the Concentration-Time Curve from Time 0 to Infinity (AUC0-Inf) of Midazolam

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

    Time frame: Predose and at designated timepoints up to 24 hours postdose

  2. Area Under the Concentration-Time Curve from Time 0 to Last (AUC0-Last) of Midazolam

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

    Time frame: Predose and at designated timepoints up to 24 hours postdose

  3. Area Under the Concentration-Time Curve from Time 0 to 24 hours (AUC0-24hr) of Midazolam

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

    Time frame: Predose and at designated timepoints up to 24 hours postdose

  4. Maximum Plasma Concentration (Cmax) of Midazolam

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

    Time frame: Predose and at designated timepoints up to 24 hours postdose

  5. Time to Maximum Plasma Concentration (Tmax) of Midazolam

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

    Time frame: Predose and at designated timepoints up to 24 hours postdose

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

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

    Time frame: Predose and at designated timepoints up to 24 hours postdose

  7. Apparent Clearance (CL/F) of Midazolam

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

    Time frame: Predose and at designated timepoints up to 24 hours postdose

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

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

    Time frame: Predose and at designated timepoints up to 24 hours postdose

  9. AUC0-Inf of Digoxin

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

    Time frame: Predose and at designated timepoints up to 120 hours postdose

  10. AUC0-Last of Digoxin

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

    Time frame: Predose and at designated timepoints up to 120 hours postdose

  11. AUC0-24hr of Digoxin

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

    Time frame: Predose and at designated timepoints up to 24 hours postdose

  12. Cmax of Digoxin

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

    Time frame: Predose and at designated timepoints up to 120 hours postdose

  13. Tmax of Digoxin

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

    Time frame: Predose and at designated timepoints up to 120 hours postdose

  14. t1/2 of Digoxin

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

    Time frame: Predose and at designated timepoints up to 120 hours postdose

  15. CL/F of Digoxin

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

    Time frame: Predose and at designated timepoints up to 120 hours postdose

  16. Vz/F of Digoxin

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

    Time frame: Predose and at designated timepoints up to 120 hours postdose

Secondary outcomes

  1. AUC0-24hr of Calderasib

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

    Time frame: Predose and at designated timepoints up to 24 hours postdose

  2. AUC0-Last of Calderasib

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

    Time frame: Predose and at designated timepoints up to 24 hours postdose

  3. Cmax of Calderasib

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

    Time frame: Predose and at designated timepoints up to 24 hours postdose

  4. C24 of Calderasib

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

    Time frame: Predose and at designated timepoints up to 24 hours postdose

  5. Tmax of Calderasib

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

    Time frame: Predose and at designated timepoints up to 24 hours postdose

  6. t1/2 of Calderasib

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

    Time frame: Predose and at designated timepoints up to 24 hours postdose

  7. Cmax Accumulation Ratio of Calderasib

    Blood samples will be collected to determine the Cmax accumulation ratio of calderasib. The accumulation ratio is the ratio of Predose Cmax to the 24 hour Cmax

    Time frame: Predose and at designated timepoints up to 24 hours postdose

  8. AUC0-24 Accumulation Ratio of Calderasib

    Blood samples will be collected to determine the AUC0-24 accumulation ratio of calderasib. The accumulation ratio is the ratio of Predose AUC0-24 to the 24 hour AUC0-24.

    Time frame: Predose and at designated timepoints up to 24 hours postdose

  9. Amount of Drug Excreted in Urine from Time 1 to Time 2 (Aet1-t2) of Digoxin

    Urine samples will be collected to determine the Aet1-t2 of digoxin.

    Time frame: Predose and at designated timepoints up to 120 hours postdose

  10. Total Amount of Drug Excreted in Urine (Ae) of Digoxin

    Urine samples will be collected to determine the Ae of digoxin.

    Time frame: Predose and at designated timepoints up to 120 hours postdose

  11. Fraction of Unchanged Digoxin in Urine (Fe)

    Urine samples will be collected to determine the Fe of digoxin.

    Time frame: Predose and at designated timepoints up to 120 hours postdose

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

    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.

    Time frame: Up to approximately 1 month

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

    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 discontinue study due to an AE will be reported.

    Time frame: Up to approximately 1 month

07

Study locations

1 site
  • Celerion ( Site 0001)
    Tempe, Arizona 85283, United States
08

References and documents

Individual participant data

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

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 11, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06575933
Lead sponsor
Merck Sharp & Dohme LLC
Responsible party
Sponsor
First posted
Aug 28, 2024
Start date
Sep 3, 2024
Primary completion
Oct 28, 2024
Completion
Oct 28, 2024
Last update
Feb 11, 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 Feb 2026. You cannot join it, but the record below documents what was studied.

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