Skip to content

A Study of Doravirine and Islatravir as a Single Entity or Combination Therapy and the Effect of Food in Healthy Adult Participants (MK-8591A-055)

An Open-Label Study to Evaluate the Effect of a High-Fat Meal on the Pharmacokinetics of Doravirine/Islatravir (100 mg/0.25 mg) Fixed-dose Combination Tablet and to Compare the Pharmacokinetics of Doravirine/Islatravir to Doravirine and Islatravir Single Entities in Healthy Adult Participants

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06719570
Enrollment
24
Registered
2024-12-06
Start date
2024-01-23
Completion date
2024-03-15
Last updated
2024-12-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy

Brief summary

The purpose of this study is to learn what happens to MK-8591A in a person's body over time. Researchers will compare what happens to MK-8591A in the body when it is given with and without food.

Interventions

Fixed dose combination tablet

Oral capsule

DRUGDoravine

Oral tablet

Sponsors

Merck Sharp & Dohme LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
BASIC_SCIENCE
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
19 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

Inclusion Criteria include, but are not limited to: * Has a body mass index (BMI) ≥ 18.0 and ≤ 32.0 kg/m\^2 * Is medically healthy with no clinically significant medical history, physical examination, clinical laboratory profiles, vital signs, and electrocardiograms (ECGs)

Design outcomes

Primary

MeasureTime frameDescription
Cmax of ISLAt designated time points up to ~30 daysCmax is the maximum concentration of the drug observed in plasma. Blood samples collected at designated time points will be used to determine Cmax of ISL.
AUC0-inf of ISLAt designated time points up to ~30 daysAUC0-inf is a measure of plasma drug concentration and time 0 to infinity and is estimated as the area under the plot of plasma concentration against time 0 to infinity after drug administration. Blood samples collected at designated time points will be used to determine the AUC0-inf of ISL.
AUC0-last of ISLAt designated time points up to ~30 daysAUC0-last is defined as the area under the concentration-time curve from time zero to time of last measurable concentration of ISL. Blood will be collected at designated time points to determine the AUC0-last of ISL.
Area under the curve from time 0-infinity (AUC0-inf) of DORAt designated time points up to ~30 daysAUC0-inf is a measure of plasma drug concentration from time 0 to infinity and is estimated as the area under the plot of plasma concentration against time 0 to infinity after drug administration. Blood samples collected at designated time points will be used to determine the AUC0-inf of DOR.
Area under the curve from time 0 to last measurable concentration (AUC0-last) of DoravineAt designated time points up to ~30 daysAUC0-last is defined as the area under the concentration-time curve from time 0 to time of last measurable concentration of DOR. Blood will be collected at designated time points to determine the AUC0-last of DOR.
Maximum plasma concentration (Cmax) of doravineAt designated time points up to ~30 daysCmax is the maximum concentration of the drug observed in plasma. Blood samples collected at designated time points will be used to determine Cmax of DOR.
Plasma concentration at 24 hours postdose (C24) of DORAt designated time points up to ~24 hours postdoseC24 is the concentration at 24 hours postdose of the drug observed in plasma. Blood samples collected at 24 postdose will be used to determine C24 of DOR.

Secondary

MeasureTime frameDescription
Number of participants who discontinued study intervention due to an AEUp to ~30 daysAn AE is defined as any untoward medical occurrence associated with the use of a drug in humans, whether or not considered drug related. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal (investigational) product, whether or not related to the medicinal (investigational) product. The number of participants who discontinue study intervention due to an AE will be reported.
Number of participants who experienced an adverse event (AE)Up to ~44 daysAn AE is defined as any untoward medical occurrence associated with the use of a drug in humans, whether or not considered drug related. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal (investigational) product, whether or not related to the medicinal (investigational) product. The number of participants with an adverse event will be reported.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026