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Status unknownNCT03744754PREFENDOUpdated Mar 5, 2019

Fertility Preservation in Case of Endometriosis

An observational study in Endometriosis, sponsored by Assistance Publique - Hôpitaux de Paris. Status unknown at 1 site in France. Open to female participants aged 18 Years to 36 Years. Per ClinicalTrials.gov, last updated 2019-03-05.

Sponsored by Assistance Publique - Hôpitaux de Paris · Observational

The sponsor has not verified this record recently (last verified Feb 2019), so the status shown — last known as Recruiting — may be out of date.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
100
Ages
18 Years to 36 Years
Sex
Female
01

Study summary

Fertility Preservation is now considered as crucial for the well-being of women battling cancer. However, others indications have more recently emerged. Women with endometriosis may represent a suitable group since they are at risk for compromise ovarian reserve. Data on FP in endometriosis patients are rare: only small retrospective study, case-reports and opinion publications .Nowadays, there is no available data concerning real indications for PF on endometriosis patients (endometriomas, risk of surgery, deep endometriosis?), criteria for eligibility (ovarian reserve parameters, age), quality of oocytes and number of oocytes necessary to give at least one live birth.

We propose a monocentric observational cohort study, evaluating the efficacy of oocytes cryopreservation as fertility preservation procedure, in young adult female subjects with endometriosis, to finally define the criteria of eligibility for PF procedures in case of endometriosis.

Read the detailed description

Monocentric observational cohort study, enrolling young patients with endometriosis, without birth project for the moment, and asking for fertility preservation, in order to preserve mature oocytes.

Protocol of this study :

  • information and signatures of consent file ;
  • ovarian stimulation, oocytes retrieval and mature oocytes cryopreservation (one or more procedures)
  • questionnaires every year, describing quality of life in this context of endometriosis and evolution (treatment, surgery, ART, pregnancies)
  • data about number and rate of thawed oocytes after preservation, pregnancy rate and live birth rate with these oocytes.
02

Conditions studied

  • Endometriosis

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Keywords

  • Fertility Preservation
  • Endometriosis
  • Endometriomas
  • Ovarian stimulation
  • Oocyte vitrification
03

In context

Endometriosis

925 studies on the registry are indexed under Endometriosis; 264 are open to participants now.

This study's planned enrollment of 100 is below the median of 125 across 354 observational studies indexed under Endometriosis.

Browse Endometriosis studies →

Lead sponsor

Assistance Publique - Hôpitaux de Paris is the lead sponsor of 3,576 studies on the registry; 1,028 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 36 Years
Sexes eligible
Female
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

Patients suffering from endometriosis, referred to our tertiary care university hospital for fertility preservation, from 18 to 36 years old.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • women from 18 to 36 years old
  • endometriosis disease proved by sonography, MRI and/or surgery
  • Consenting to participate to the study

Exclusion criteria

Exclusion Criteria:

  • Any contraindication for ovarian stimulation.
  • Any contraindication for pregnancy .- Impossible Follow-up.
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
100 participants (estimated)
Patient registry
No
Biospecimen retention
Samples with dna

Groups and cohorts

  • Women with endometriosis

    Women with endometriosis disease aged 18-36 years, with appropriate endometriosis diagnosis, based on transvaginal sonography, magnetic resonance imaging and/or previous surgery.Ovarian reserve was assessed by antral follicle counting (AFC) and measurement of serum anti-Mullerian hormone (AMH) levels Enrolled after preservation fertility procedure (vitrification of mature oocytes)

06

What researchers measure

Primary outcomes

  1. characteristics of patients who will benefit from preservation fertility in case of endometriosis (age, parameters of ovarian reserve, endometriosis stage and lesions, previous treatment or surgeries, previous fertility treatment)

    baseline data

    Time frame: 5 years

Secondary outcomes

  1. rate of patients who will re-use their cryopreserved oocytes

    follow up data

    Time frame: 5 years

  2. oocytes survival rate

    follow up data

    Time frame: 5 years

  3. pregnancy rate

    follow up data

    Time frame: 5 years

  4. birth rate

    follow up data

    Time frame: 5 years

  5. live birth rate

    follow up data

    Time frame: 5 years

  6. Quality of life, during and after preservation fertility procedure assessed by SF-36 questionnaire

    Patients complete a SF-36 questionnaire

    Time frame: 5 years

  7. Events between fertility preservation and re-use or end of the study 1

    Nature of surgical procedures for endometriosis during the year

    Time frame: 5 years

  8. Events between fertility preservation and re-use or end of the study 2

    Number of surgical procedures for endometriosis during the year

    Time frame: 5 years

  9. Events between fertility preservation and re-use or end of the study 3

    Pregnancy during the year (and type of pregnancy: abortion, clinical pregnancy, delivery)

    Time frame: 5 years

  10. Events between fertility preservation and re-use or end of the study 4

    Duration of medical treatement for endometriosis during the year: number of months during the year

    Time frame: 5 years

  11. Events between fertility preservation and re-use or end of the study 5

    Type of medical treatement for endometriosis during the year: class of molecule

    Time frame: 5 years

07

Study locations

1 of 1 sites recruiting
  • Service de Gynécologie Obstétrique et Médecine de la Reproduction Hôpital TENON
    Paris, Île-de-France Region 75020, France
    Recruiting
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Dec 2018 (actual). Primary completion is estimated for Dec 2020, 24 months after the start.

Of 153 non-industry observational studies under Endometriosis, half reached primary completion within 30 months of starting (the median), counting those still running; a quarter within 14 and three quarters within 48. This study's planned 24 months is below that.

Counting every sponsor, half of 182 studies reached it within 30 months; a quarter within 14 and three quarters within 48.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 10, 2018
First posted
Nov 16, 2018
StartActual
Dec 4, 2018
Primary completionEst.
Dec 2020
CompletionEst.
Dec 2025
Last update
Mar 5, 2019
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Mar 5, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03744754
Responsible party
Sponsor
First posted
Nov 16, 2018
Start date
Dec 4, 2018
Primary completion
Dec 2020 (estimated)
Completion
Dec 2025 (estimated)
Last update
Mar 5, 2019

Study contacts

Emmanuelle Mathieu d'Argent, MD
Contact
emmanuelle.mathieu@aphp.fr
+33 156 01 68 69
Emile Darai, MD, PhD
Contact
emile.darai@tnn.aphp.fr
Emmanuelle Mathieu d'Argent, MD
principal investigator · Assistance Publique - Hôpitaux de Paris

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Feb 2019. You cannot join it, but the record below documents what was studied.

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