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Pill power: study shows extra birth control pills keep implant users on track

NCT ID NCT04828824

Disease control Sponsor: University of Colorado, Denver Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested whether giving young women (ages 14-22) birth control pills alongside their contraceptive implant helps them keep using the implant longer. 600 participants either received the pills or standard counseling. The goal was to see if the pills reduce early implant removal.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 4

Runs after approval, following long-term safety and how well the treatment works in everyday use.

Participants

600 people

The number who actually took part.

Started

Jun 2021

Finished

Nov 2025

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

14 to 23 years

Sex

Female participants only

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. You are between ages of 14 to 22.9 years. 2. Started etonogestrel implant for the first time and have never used the implant before. Exclusion Criteria: 1. There is any contraindication to estrogen containing birth control. 2. Desire of pregnancy in next 12 months. 3. Plans to move from the area in next 12 months and is not able to come to the clinic.

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Conditions

The condition(s) this trial relates to.

Contraception Behavior

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contraception behavior

Contacts and locations

Locations

  • Children's Hospital Colorado

    Aurora, Colorado, 80045, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.