Adults 18 to 35, female only, with Contraception. Patients with the condition only — healthy volunteers not accepted.
Results — posted to ClinicalTrials.gov
Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.
Number of Participants With Follicle RupturePrimary· within 5 days of taking the study drug
Following dosing with UPA, subjects underwent daily visits with ultrasound monitoring until evidence of follicle rupture (complete disappearance or \>50% reduction of the mean size of the leading follicle).
Group
Value
95% CI
UPA Only
1
UPA + COC
9
Adverse events — posted to ClinicalTrials.gov
Time frame: up to 3 months.
Reporting threshold: 0%.
Adverse-event reports describe events observed during the trial — not all are caused by the drug.
The purpose of this research study is to determine if taking a birth control pill effects how well an emergency contraceptive pill called Ulipristal acetate (UPA) works. This type of emergency contraceptive is the most effective oral method available. However, this medication is an anti-progestin and most regular forms of birth control contain progestin (a female hormone). It is unknown if taking the two close together may make the emergency contraceptive not work well. The overall goal of this research is to improve the effectiveness of contraception for women and to better counsel women.
Publications & conference data
2 peer-reviewed publications reference this trial (live from Europe PMC):
NCT04989400 — Use of Ulipristal Acetate in Induction of Second Trimester Missed Abortion
· Phase 4
· completed
Other recruiting trials for Contraception
Currently open trials in the same condition.
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· recruiting
NCT07437495 — Women's Knowledge of Contraception During the Postpartum Period
· active not recruiting
NCT06823037 — Hormonal Contraception Access Through Pharmacist Prescribing Implementation
· NA
· recruiting
NCT07326007 — Verbal Analgesia Versus Standard Technique for Pain Control During Copper T380A Intrauterine Device Insertion in Women W
· NA
· recruiting
NCT05910580 — Improving Alcohol and Substance Use Care Access, Outcome, Equity During the Reproductive Years
· NA
· recruiting
Other Oregon Health and Science University trials
Trials by the same sponsor.
NCT07431970 — Assessing Construction Execution Under Sleep Impairment
· NA
· not yet recruiting
NCT07309757 — Maternal Outcomes With Methamphetamine Use and Cardiac Assessment for Rural Dissemination (MOM CARD)
· not yet recruiting
NCT07282639 — App-Based Certified Diabetes Education Therapy (AB-CDE)
· NA
· not yet recruiting
NCT07322588 — Reentry Incentives and Support for Engagement With Contingency Management
· NA
· not yet recruiting
NCT07220590 — Implementing Powered Mobility in Early Childhood Settings for Children With Cerebral Palsy
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· not yet recruiting
Publications: Europe PMC API search by NCT ID, retrieved 10 June 2026
Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
Sponsor: as reported to ClinicalTrials.gov by Oregon Health and Science University
Last refreshed: 8 November 2019
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT02577601.