Ovarian Function With ENG Implant and UPA Use
Public ClinicalTrials.gov record NCT04291001. 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
A Pilot Prospective, Randomized Pharmacodynamic Study With Assessment of Ulipristal Acetate on Ovarian Activity Following Quickstart of the Etonogestrel Contraceptive Implant
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Same day initiation of the etonogestrel (ENG) implant and oral ulipristal acetate (UPA) would overcome contraceptive access barriers to people capable of pregnancy with recent unprotected intercourse to ongoing contraception. Current clinical guidelines recommend delaying implant initiation for at least 1 week following UPA, as well as waiting 7 days before relying on the implant for contraception after initiation alone. This pilot will assess the effects of the implant alone and the implant inserted with same-day as UPA usage on ovarian activity. A total of 40 people capable of pregnancy desiring the implant, who are not at risk for pregnancy during the study timeline, will be recruited. Participants will be randomized to implant alone or same-day implant + oral UPA. Participants will have daily ultrasounds and blood draws to assess timing of ovulation for 1 week and then an exit visit at 14 days after randomization. The primary outcome is the incidence of ovulation in the 2 randomized treatment groups. Participants may continue the implant after the study per FDA guidelines and rely on it for contraception after the study is completed.
Study identification
- NCT ID
- NCT04291001
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Early Phase 1
- Enrollment
- 40 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years to 35 Years
- 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
- Sep 3, 2020
- Primary completion
- Oct 9, 2022
- Completion
- Jan 11, 2024
- Last update posted
- Jul 11, 2024
2020 – 2024
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| University of Utah | Salt Lake City | Utah | 84132 | — |
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 NCT04291001, 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 Jul 11, 2024 · Synced Sep 5, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04291001 live on ClinicalTrials.gov.