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Birth control pills and bones: a new study raises questions

NCT ID NCT04007614

Knowledge-focused Sponsor: Assistance Publique - Hôpitaux de Paris 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
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 Results may not be published yet.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 This study
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This status has not been confirmed recently, so it may be out of date.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 aimed to look at bone health in young women aged 16 to 25 who took a specific type of birth control pill (macro-progestins) for at least six months. Researchers planned to review medical records and run blood and urine tests to see if these pills affected bone density. However, the study was withdrawn before any participants were enrolled, so no results are available.

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.

Expected to start

Apr 2020

An estimate. Start dates often move.

Expected to finish

Feb 2021

An estimate. End dates often move.

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.

Who is studied

Patients followed by the department of endocrinology, gynecology and pediatric diabetes of Necker hospital.

Ages

16 to 25 years

Sex

Female participants only

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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: * Patients aged 16 to 25 years old * Patients followed at Necker-Enfants Malades hospital * Patients who have taken or taking macro-progestins treatment by oral route (Luteran, Lutenyl, Surgestone) for at least 6 months between the age of 16 and 25 years Exclusion Criteria: * Patients with a pathology or treatment that can alter bone mineral density

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Conditions

The condition(s) this trial relates to.

progestogen hypersensitivity

As listed by the trial registrant

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

Contraception Macro-progestins

Contacts and locations

Locations

  • Hôpital Necker-Enfants Malades

    Paris, Paris, 75015, France

More trials for these conditions

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