Pharmacokinetic Study to Evaluate Double-Dose Levonorgestrel Emergency Contraception in Combination With Efavirenz-Based Antiretroviral Therapy or Rifampicin-Containing Anti-Tuberculosis Therapy
Public ClinicalTrials.gov record NCT03819114. 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, Phase II Pharmacokinetic Study to Evaluate Double-Dose Levonorgestrel Emergency Contraception in Combination With Efavirenz-Based Antiretroviral Therapy or Rifampicin-Containing Anti-Tuberculosis Therapy
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The purpose of this pharmacokinetic (PK) study was to evaluate if a double dose (3 mg) of levonorgestrel (LNG) overcomes known drug-drug interactions (DDIs) with efavirenz (EFV)-based antiretroviral therapy (ART) or rifampicin (RIF)-containing tuberculosis (TB) therapy. The safety of double-dose (3.0 mg) LNG versus standard-dose (1.5 mg) was also compared.
Study identification
- NCT ID
- NCT03819114
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 2
- Enrollment
- 122 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 16 Years and older
- Sex
- Female
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- May 6, 2019 (Actual)
- Primary completion
- Nov 2, 2020 (Actual)
- Completion
- Nov 30, 2020 (Actual)
- Last update posted
- Dec 27, 2021
2019 – 2020
United States locations
- U.S. sites
- 7
- U.S. states
- 5
- U.S. cities
- 6
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| 2701 Northwestern University CRS | Chicago | Illinois | 60611 | — |
| Rush Univ. Med. Ctr. ACTG CRS (2702) | Chicago | Illinois | 60612 | — |
| Weill Cornell Upton CRS (7803) | New York | New York | 10065 | — |
| Unc Aids Crs (3201) | Chapel Hill | North Carolina | 27514 | — |
| Hosp. of the Univ. of Pennsylvania CRS (6201) | Philadelphia | Pennsylvania | 19104 | — |
| Pitt CRS (1001) | Pittsburgh | Pennsylvania | 15213 | — |
| Trinity Health and Wellness Center CRS (31443) | Dallas | Texas | 75208 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 11 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03819114, 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 Dec 27, 2021 · Synced Oct 24, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT03819114 live on ClinicalTrials.gov.