A Study of Rifabutin and MK-4646 in Healthy Participants (MK-4646-004)
Public ClinicalTrials.gov record NCT07199452. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
An Open-Label Clinical Study to Evaluate the Effects of Multiple Oral Doses of Rifabutin on the Single-Dose Pharmacokinetics of MK-4646 in Healthy Participants
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Researchers have designed a new study medicine called MK-4646 as a new way to treat human immunodeficiency virus (HIV). Rifabutin is a medication used to treat tuberculosis (TB). Researchers want to learn about MK-4646 when taken at the same time as Rifabutin. They want to: Measure a person's blood to find out if the amount of MK-4646 in the blood is the same when MK-4646 is taken alone or with Rifabutin Learn about the safety of MK-4646 when taken alone or with Rifabutin and if people tolerate it
Study identification
- NCT ID
- NCT07199452
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 1
- Enrollment
- 18 participants
Conditions and interventions
Eligibility (public fields only)
- Age range
- 18 Years to 55 Years
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Oct 27, 2025
- Primary completion
- Dec 26, 2025
- Completion
- Jan 6, 2026
- Last update posted
- Jan 28, 2026
2025 – 2026
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Fortea CRU Madison ( Site 0001) | Madison | Wisconsin | 53704 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT07199452, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Jan 28, 2026 · Synced Sep 4, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT07199452 live on ClinicalTrials.gov.