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CompletedNCT06597760Updated Nov 29, 2024

A Clinical Study to Assess the Effect of Enlicitide on How the Body Processes Digoxin in Healthy Adult Participants (MK-0616-031)

A Phase 1 interventional study of Enlicitide and Digoxin in Healthy, sponsored by Merck Sharp & Dohme LLC. Completed at 1 site in United States. Open to participants aged 19 Years to 55 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-11-29.

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

From the registry’s dates

  • Primary completion was Nov 2024, 1 year 11 months ago, and no results have been posted to the registry.
Phase
Phase 1
Study type
Interventional
Enrollment
24
Allocation
Randomized
Ages
19 Years to 55 Years
Sex
All
01

Study summary

Researchers have designed a new study medicine called enlicitide decanoate as a new way to lower the amount of low-density lipoprotein cholesterol (LDL-C) in a person's blood. Enlicitide decanoate will be called "enlicitide" from this point forward.

The purpose of this study is to learn the effect of this new study medicine enlicitide on digoxin (medicine used in heart disease) over time (a pharmacokinetic or PK study). Researchers will compare what happens to digoxin in the body over time when it is given with this new study medicine enlicitide in healthy adult participants.

02

Conditions studied

  • Healthy
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
19 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 in good health before randomization
  • 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 history of clinically significant psychiatric, immunological, gastrointestinal, cardiovascular abnormalities or diseases.
  • Has a history of cancer.
  • Has positive results for human immunodeficiency virus (HIV), hepatitis B surface antigen (HBsAg), or hepatitis C virus (HCV) at the screening visit.
05

Study design

Phase
Phase 1
Primary purpose
Basic science
Allocation
Randomized
Intervention model
Crossover assignment
Masking
None (open label)
Enrollment
24 participants (actual)

Study arms

  • Experimental
    Sequence 1: 0.25mg Digoxin-->0.25mg Digoxin plus 20mg enlicitide/180mg Sodium Caprate

    Participants will receive 1 tablet of 0.25mg Digoxin on Day 1 of period 1 and 1 tablet of 0.25mg Digoxin coadministered with 1 tablet of 20 mg enlicitide/180 mg sodium caprate on Day 1 of Period 2.

    Drug: Enlicitide · Drug: Digoxin

  • Experimental
    Sequence 2: 0.25mg Digoxin plus 20mg enlicitide/180mg Sodium Caprate-->0.25mg Digoxin

    Participants will receive 1 tablet of 0.25mg Digoxin coadministered with 1 tablet of 20 mg enlicitide/180 mg sodium caprate on Day 1 of Period 1 and will receive 1 tablet of 0.25mg Digoxin on Day 1 of period 2.

    Drug: Enlicitide · Drug: Digoxin

Interventions

  • DrugEnlicitide

    Participants will receive 20 mg enlicitide/180 mg sodium caprate coadministered with 0.25mg Digoxin orally on Day 1, Period 2 in Arm A and on Day 1 Period 1 in Arm B.

    Also known as: enlicitide decanoate, MK-0616/sodium caprate

  • DrugDigoxin

    Participants will receive 0.25 mg digoxin orally on Day 1 Period 1 in Arm A and Day 1 Period 2 in Arm B. They also receive Digoxin orally on Day 1, Period 2 in Arm A and on Day 1 Period 1 in Arm B coadministered with oral 20 mg enlicitide/180 mg sodium caprate.

06

What researchers measure

Primary outcomes

  1. Area Under the Concentration-time Curve From Time Zero to Infinity (AUC0-inf) for Digoxin in Plasma

    AUC0-inf is the area under the plasma concentration versus time curve (AUC) for digoxin, from time zero (pre-dose) to extrapolated infinite time.

    Time frame: At designated timepoints (up to 5 days)

Secondary outcomes

  1. Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUC0-last) for Digoxin in Plasma

    Area under the plasma concentration versus time curve from time zero to the last sampling time t at which the concentration is at or above the lower limit of quantification (LLQ).

    Time frame: At designated timepoints (up to 5 days)

  2. Cmax (Maximum Concentration) for Digoxin in Plasma

    Blood samples will be collected at at designated timepoints (up to 5 days) post-dose to determine the Cmax of Digoxin.

    Time frame: At designated timepoints (up to 5 days)

  3. Tmax (Time to Maximum Concentration) for Digoxin in Plasma

    The time to reach Cmax (Tmax) is determined. Blood samples will be collected at designated timepoints (up to 5 days) post-dose to determine the maximum concentration (Cmax) of digoxin.

    Time frame: At designated timepoints (up to 5 days)

  4. Terminal half life (T½) for Digoxin in Plasma

    T1/2 is defined as the time taken for the plasma concentration or the amount of digoxin in the body to be reduced by half.

    Time frame: At designated timepoints (up to 5 days)

  5. Apparent Clearance (CL/F) for Digoxin in Plasma

    Clearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. Clearance obtained after oral dose (apparent oral clearance) is influenced by the fraction of the dose absorbed.

    Time frame: At designated timepoints (up to 5 days)

  6. Apparent Volume of Distribution During Terminal Phase (Vz/F) for Digoxin in Plasma

    Volume of distribution is defined as the theoretical volume in which the total amount of drug would need to be uniformly distributed to produce the desired plasma concentration of a drug. Vz/f after oral dose of digoxin is influenced by the fraction absorbed.

    Time frame: At designated timepoints (up to 5 days)

  7. Number of Participants With Treatment Emergent Adverse Events (TEAEs):

    An adverse event (AE) is any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. TEAEs are defined as all AEs that occurred at or after the first dose of the investigational product and through the last follow-up date.

    Time frame: Up to ~ 28 days.

  8. Number of Participants With Clinical Laboratory Abnormalities

    Clinical laboratory test include serum chemistry, hematology and urinalysis. Clinical laboratory abnormalities were recorded and reported as TEAE. TEAEs are defined as all AEs that occurred at or after the first dose of the investigational product or device implant surgery (whichever occurred earlier) and through the last follow-up date.

    Time frame: Up to ~ 28 days

  9. Standard and Orthostatic Vital Signs

    Single measurements of body temperature, respiratory rate, blood pressure, and heart rate, and triplicate measurements of blood pressure and heart rate will be measured. Orthostatic vital signs (i.e., heart rate and blood pressure) will be measured, Measurements will be collected with participants in a semi-recumbent position and then collected when in a standing position.

    Time frame: Up to ~ 28 days

  10. 12-lead Electrocardiogram (ECGs)

    Single and triplicate 12-lead ECGs will be performed. Triplicate 12-lead ECGs will be performed within an approximately 6-minute time window. ECGs will be performed with participants in a supine position for at least 5 minutes. In each period, triplicate ECGs will be measured within 3 hours prior to dosing. When scheduled post dose, single ECGs will be performed within ±20 minutes of the scheduled time point.

    Time frame: Up to ~ 28days

07

Study locations

1 site
  • Celerion ( Site 0001)
    Lincoln, Nebraska 68502, United States
08

References and documents

Individual participant data

Plan to share: Yes — http://engagezone.msd.com/doc/ProcedureAccessClinicalTrialData.pdf

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 29, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06597760
Lead sponsor
Merck Sharp & Dohme LLC
Collaborators
Celerion
Responsible party
Sponsor
First posted
Sep 19, 2024
Start date
Oct 7, 2024
Primary completion
Nov 1, 2024
Completion
Nov 15, 2024
Last update
Nov 29, 2024

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 Nov 2024. You cannot join it, but the record below documents what was studied.

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