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NCT07566793 · ClinicalTrials.gov registry record
Validation of Effectiveness on NaturalCycles Users
A clinical trial, sponsored by Natural Cycles.
- Recruiting
- Registry status
- 2,000
- Enrollment target
NCT07566793: Recruiting study, sponsored by Natural Cycles.
NCT07566793 is a clinical trial that is actively recruiting participants, run by Natural Cycles. The registered enrollment target is 2,000 participants. According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT07566793 is actively recruiting participants, sponsored by Natural Cycles.
- RECRUITING
- Registry status
- 2,000 participants
- Enrollment target
Study Summary
The goal of this observational study is to measure the effectiveness of the Natural Cycles digital birth control application at preventing pregnancy in sexually active women aged 18 to 35 with no known history of infertility. The main questions it aims to answer are: * What is the pregnancy rate of the application over one year, for all users? * What is the pregnancy rate of the application over one year, for users who follow the application's instructions perfectly? Participants will: * Use the Natural Cycles application for birth control for up to one year. * Log information about daily sexual activity in the app. * Complete a questionnaire at the beginning and end of their participation. * Perform urine pregnancy tests (provided by mail) upon entry to the study, at the start of every cycle during the study, and upon exit from the study.
Primary Outcome
The cumulative contraceptive failure rate in Typical Use and Perfect Use will be calculated using Kaplan-Meier survival analysis. This represents the probability of becoming pregnant within the first year of typical or perfect use of the Natural Cycles app. A confirmed pregnancy, identified through a positive urine pregnancy test, will be considered an event.
Interventions
- BEHAVIORAL Log daily intercourse information
- DEVICE Natural Cycles application
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 2,000 participants |
| Start Date | 2026-04-28 |
| Est. Completion | 2027-12 |
What NCT07566793 shows while recruiting
NCT07566793 is an observational study that tracks outcomes without assigning an intervention. Its 2,000 participants enrollment target places it among the larger protocols in the corpus.
The record links to 0 conditions, and to 2 interventions - of which Log daily intercourse information is the first listed.
NCT07566793 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT07566793 about?
NCT07566793 is a clinical study titled "Validation of Effectiveness on NaturalCycles Users". The goal of this observational study is to measure the effectiveness of the Natural Cycles digital birth control application at preventing pregnancy in sexually active women aged 18 to 35 with no known history of infertility. The main questions it aims to answer are: * What is the pregnancy rate of...
What is the current status of trial NCT07566793?
This trial is currently recruiting. The enrollment target is 2,000 participants. The study started on 2026-04-28. Estimated completion is 2027-12.
What interventions are being tested in trial NCT07566793?
The interventions under investigation include: Log daily intercourse information (BEHAVIORAL), Natural Cycles application (DEVICE).
Who is sponsoring clinical trial NCT07566793?
This trial is sponsored by Natural Cycles, which has 2 total clinical trials registered on ClinicalTrials.gov.
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