Effect of GSK3640254 on the Pharmacokinetics of a Combination Oral Contraceptive
Public ClinicalTrials.gov record NCT03984825. 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
The Effect of Coadministration of GSK3640254 on the Pharmacokinetics of a Combined Oral Contraceptive Containing Ethinyl Estradiol and Levonorgestrel in Healthy Female Subjects
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This is an open-label, single-sequence, 1-way drug-drug interaction study to investigate the effect of GSK3640254 on the pharmacokinetics of a combination oral contraceptive containing ethinyl estradiol (EE) and levonorgestrel (LNG). Effective contraception for women infected with human immunodeficiency virus (HIV) is important in the prevention of unplanned pregnancies. The study will consist of a screening period of 28 days, check-in (Day -4), a run-in period and a treatment period. During the run-in period, subjects will be administered Portia® (0.03 milligrams \[mg\] EE/0.15 mg LNG) once daily on Days -3 to -1. Subjects will then be administered Portia once daily on Days 1 to 10 of treatment period A followed by administration of Portia once daily along with GSK3640254 200 mg on Days 11 to 21 of treatment period B. The duration of the study is approximately 8 weeks, including Screening and Run-in. Portia is a registered trademark of Teva Pharmaceuticals USA.
Study identification
- NCT ID
- NCT03984825
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 1
- Enrollment
- 23 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years to 50 Years
- Sex
- Female
- 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
- Jun 12, 2019
- Primary completion
- Aug 15, 2019
- Completion
- Aug 15, 2019
- Last update posted
- Aug 26, 2020
2019
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| GSK Investigational Site | Austin | Texas | 78744 | — |
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 NCT03984825, 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 Aug 26, 2020 · Synced Sep 2, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03984825 live on ClinicalTrials.gov.