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ContraceptionMACROSNCT04007614

Bone Health in Adolescents and Young Adults With Oral Macro-progestin Treatment

An observational study of Contraception and Macro-progestins, run by Assistance Publique - Hôpitaux de Paris at 1 site in France.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

Many factors are known to influence the acquisition of bone capital, especially estrogens in women. Estrogens have a major role in bone growth and the acquisition of bone mass peaks during puberty. This peak of bone mass is an important determinant of the risk of osteoporotic fracture in adulthood. Read more about this study

Who is it for?
Ages 16 to 25 years, women only
Conditions the study is for
Contraception, Macro-progestins
What is being tested?
Questionnaire
How many people
0 participants
Where
1 siteFrance
Study dates
Apr 2020to Feb 2021
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 16 to 25 years
  • Women only
  • No healthy volunteers
  • Child, Adult

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

Who may be able to join

  • 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

Who cannot join

  • Patients with a pathology or treatment that can alter bone mineral density

Trial locations and contacts

1 site in 1 country.

France1 site
  • Hôpital Necker-Enfants Malades

    Paris, Paris, 75015

Other trials in France

About this study

Official title: Bone Health in Adolescents and Young Adults With Oral Macro-progestin Treatment : Observational Study

Many factors are known to influence the acquisition of bone capital, especially estrogens in women. Estrogens have a major role in bone growth and the acquisition of bone mass peaks during puberty. This peak of bone mass is an important determinant of the risk of osteoporotic fracture in adulthood.

It is known that estrogen deficiency increases the rate of bone remodeling and engenders an imbalance between resorption and bone formation, which can lead to osteoporosis.

Read more

Oral estroprogestin contraceptives have an anti-gonadotropic effect and suppress estrogen secretion by the ovaries.

However, studies in adolescents and young adults are rare and evidence of an effect on bone is still inconclusive, although there is increasing evidence that oral estroprogestin contraceptives in teenage girls may compromise the performance of the bone mass.

Macro progestins treatments are prescribed in France to patients with contraindications to estroprogestin treatments. This practice is french and few recommendations exist on the use of these molecules by the oral route. There are no studies that describe the impact of these oral treatments on the bone health of young women treated.

The Department of endocrinology, gynecology and pediatric diabetes of Necker-Enfants Malades hospital, follows many young girls taking a macro progestin treatment. This study is exclusively descriptive and will focus on the clinical and medical datas available on the bone health of these patients.

Being tested
Questionnaire
Keywords
Macro-progestins, Bone health

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • QuestionnaireOther

    Fardellone questionnaire (evaluation of calcium intake) Tolerance of treatment

Study groups in NCT04007614
Study groupRoleWhat they receive
PatientsPatients who have taken a macro progestin treatment for more than 6 months between 16 and 25 years of age.
Receives: Other: Questionnaire

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Bone densitometry

    Z score values compared to the reference values

    Measured: Day 0

  2. Calcemia

    Blood test

    Measured: Day 0

  3. Ionized calcium

    Blood test

    Measured: Day 0

  4. Phosphor

    Blood test

    Measured: Day 0

  5. Magnesium

    Blood test

    Measured: Day 0

  6. Albumin

    Blood test

    Measured: Day 0

  7. Parathormone

    Blood test

    Measured: Day 0

  8. 25 OH vitamin D3

    Blood test

    Measured: Day 0

  9. Creatinine

    Blood test

    Measured: Day 0

  10. Osteocalcin

    Blood test

    Measured: Day 0

  11. Bone alkaline phosphatase isoenzymes

    Blood test

    Measured: Day 0

  12. C-terminal telopeptide of type I collagen

    Blood test

    Measured: Day 0

  13. Calciuria

    Urine test

    Measured: Day 0

  14. Natriuresis

    Urine test

    Measured: Day 0

  15. Creatinuria

    Urine test

    Measured: Day 0

Secondary outcomes (4)
  1. Clinical tolerance of treatment

    6 questions asked to the patient under treatment, a yes or no answer is expected : presence of menstruating, regularity of cycles, out-of-periods bleeding, weight gain, acne, satisfaction in relation to treatment.

    Measured: Day 0

  2. Follicle stimulating hormone

    Blood test, patients under macro progestin treatment at day 0

    Measured: Day 0

  3. Gonadotrophin b LH

    Blood test, patients under macro progestin treatment at day 0

    Measured: Day 0

  4. Estradiol

    Blood test, patients under macro progestin treatment at day 0

    Measured: Day 0

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted5 Jul 2019
  2. Study startApr 2020 (estimated)
  3. Primary completionFeb 2021 (estimated)
  4. Study completionFeb 2021 (estimated)

Why it stopped: The study never started

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04007614
Sponsor's protocol ID
APHP190093
Other IDs
IDRCB : 2019-A00340-57
Acronym
MACROS
Status last verified
Mar 2026
First submitted
17 Apr 2019
Last updated
3 Apr 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

An observational study of Contraception and Macro-progestins, run by Assistance Publique - Hôpitaux de Paris at 1 site in France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: withdrawn, as of the sponsor's last update on 3 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study was withdrawn before enrolling participants, so there are no results.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Bone densitometry (time frame: Day 0). The study lists 15 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 Apr 2026.

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