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A Study of MK-8507 and Islatravir (MK-8591) in Healthy Adult Participants (MK-8507-016)

An Open-Label Study to Assess the Two-Way Interaction Between Multiple Weekly Doses of MK-8507 and Single Doses of Islatravir (MK-8591) in Healthy Adult Participants

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06619678
Enrollment
36
Registered
2024-10-01
Start date
2024-01-17
Completion date
2024-06-23
Last updated
2024-10-01

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

Conditions

Healthy

Brief summary

The main goals of this study are to learn what happens to Islatravir or MK-8507 in a person's body over time. Researchers will compare Islatravir given alone to Islatravir given with MK-8507. Researchers will also compare MK-8507 given alone to MK-8507 given with Islatravir.

Interventions

DRUGMK-8507

Oral administration

Oral administration

Sponsors

Merck Sharp & Dohme LLC
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
19 Years to 65 Years
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

The key

Design outcomes

Primary

MeasureTime frameDescription
Vd/F of MK-8507At designated timepoints (up to approximately 15 days)Blood samples will be collected to determine the Vd/F of MK-8507.
t1/2 of MK-8507At designated timepoints (up to approximately 15 days)Blood samples will be collected to determine the t1/2 of MK-8507.
CL/F of MK-8507At designated timepoints (up to approximately 15 days)Blood samples will be collected to determine the CL/F of MK-8507.
Area Under the Concentration-Time Curve from Time 0 to Infinity (AUC0-Inf) of Islatravir MetaboliteAt designated timepoints (up to approximately 43 days)Blood samples will be collected to determine the AUC0-Inf of Islatravir metabolite.
Area Under the Concentration-Time Curve from Time 0 to 168 hours (AUC0-168hrs) of Islatravir MetaboliteAt designated timepoints (up to approximately 168 hours)Blood samples will be collected to determine the AUC0-168hrs of Islatravir metabolite.
Maximum Concentration (Cmax) of Islatravir MetaboliteAt designated timepoints (up to approximately 43 days)Blood samples will be collected to determine Cmax of Islatravir metabolite.
Plasma Concentration at 168 Hours (C168) of Islatravir MetaboliteAt designated timepoints (up to approximately 168 hours)Blood samples will be collected to determine the C168 of Islatravir metabolite.
Time to Maximum Concentration (Tmax) of Islatravir MetaboliteAt designated timepoints (up to approximately 43 days)Blood samples will be collected to determine the Tmax of Islatravir metabolite.
Apparent Terminal Half-life (t1/2) of Islatravir MetaboliteAt designated timepoints (up to approximately 43 days)Blood samples will be collected to determine the t1/2 of Islatravir metabolite.
AUC0-Inf of IslatravirAt designated timepoints (up to approximately 22 days)Blood samples will be collected to determine the AUC0-Inf of Islatravir.
AUC0-168hrs of IslatravirAt designated timepoints (up to approximately 7 days)Blood samples will be collected to determine the AUC0-168hrs of Islatravir.
Cmax of IslatravirAt designated timepoints (up to approximately 22 days)Blood samples will be collected to determine Cmax of Islatravir.
C168 of IslatravirAt designated timepoints (up to approximately 168 hours)Blood samples will be collected to determine the C168 of Islatravir.
Tmax of IslatravirAt designated timepoints (up to approximately 22 days)Blood samples will be collected to determine the Tmax of Islatravir.
t1/2 of IslatravirAt designated timepoints (up to approximately 22 days)Blood samples will be collected to determine the t1/2 of Islatravir.
Apparent clearance (CL/F) of IslatravirAt designated timepoints (up to approximately 22 days)Blood samples will be collected to determine the CL/F of Islatravir.
Apparent Volume of Distribution During Terminal Phase (Vd/F) of IslatravirAt designated timepoints (up to approximately 22 days)Blood samples will be collected to determine the Vd/F of Islatravir.
AUC0-168hrs of MK-8507At designated timepoints (up to approximately 7 days)Blood samples will be collected to determine the AUC0-168hrs of MK-8507.
Cmax of MK-8507At designated timepoints (up to approximately 15 days)Blood samples will be collected to determine Cmax of MK-8507.
C168 of MK-8507At designated timepoints (up to approximately 168 hours)Blood samples will be collected to determine the C168 of MK-8507.
Tmax of MK-8507At designated timepoints (up to approximately 15 days)Blood samples will be collected to determine the Tmax of MK-8507.

Secondary

MeasureTime frameDescription
Number of Participants Who Discontinue Study Treatment Due to an AEUp to approximately 5 monthsAn 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 treatment due to an AE will be reported.
Number of Participants Who Experience an Adverse Event (AE)Up to approximately 5 monthsAn 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.

Countries

United States

Outcome results

None listed

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