Clinical trialNCT03585712CompletedPhase 2Interventional

Effect of Norgestrel 75 mcg on Cervical Mucus and Ovarian Activity During Perfect Use, After One Delayed Intake and After a Missed Pill

SponsorHRA PharmaEnrollment52Contraception

View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

Norgestrel 75 mcg is a progestin-only pill (POP), which is a kind of oral birth control pill. To be effective in preventing pregnancy, this kind of birth control pill is supposed to be taken every day at the same time, without delaying the intake for more than 3 hours. This study aims to find out if taking the pill 6 hours late or not taking it for one day will affect the way it works.

clinicaltrials.gov ↗

Investigators

The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.

Alison Edelman, MD
Oregon Health and Sciences University
Principal Investigator
clinicaltrials.gov ↗
Mitchell Creinin, MD
University of California, Davis
Principal Investigator
clinicaltrials.gov ↗

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

2 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

United States

University of California Davis
Sacramento, California, United States
Oregon Health and Sciences University
Portland, Oregon, United States

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

The drug and biological interventions registered on this study, normalized to their RxNorm ingredient where possible.

Norgestrel

Linked drugs open the directory filtered to KOLs working with them.clinicaltrials.gov ↗

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start: 24 Jul 2018
Primary completion: 7 Apr 2020
Completion: 7 Apr 2020
Last update posted: 3 Jun 2021
Registered enrollment: 52
Registry id: NCT03585712

clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 24 Aug 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.