Ovarian Blockade During Fertility Preservation in Patients With Endometriosis
PFENDO
PFENDO : Ovarian Blockade During Fertility Preservation in Patients With Endometriosis: a Retrospective Non-inferiority Comparative Study
2 other identifiers
observational
130
1 country
1
Brief Summary
The aim of the study is to demonstrate the non-inferiority of dienogest on the number of mature oocytes collected compared with "conventional" ovarian stimulation protocols (using a GnRH agonist or antagonist), in patients with endometriosis in a fertility preservation context.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Dec 2023
Shorter than P25 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
October 20, 2023
CompletedFirst Posted
Study publicly available on registry
October 30, 2023
CompletedStudy Start
First participant enrolled
December 18, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 3, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
April 3, 2024
CompletedDecember 10, 2025
December 1, 2025
4 months
October 20, 2023
December 3, 2025
Conditions
Outcome Measures
Primary Outcomes (1)
Number of mature oocytes collected by ovarian puncture
Number of mature oocytes
through study completion, an average of 15 days
Study Arms (3)
dienogest
GnRH agonist
GnRH antagonist
Interventions
surveys (Fertiqol and WHOQOL-BREF)
Eligibility Criteria
Women of childbearing age with endometriosis who have undergone at least one cycle of ovarian stimulation for fertility preservation between June 2022 and September 2023.
You may qualify if:
- Patient aged between 18 and 42 inclusive
- Patient with endometriosis
- Patient who has undergone at least one cycle of ovarian stimulation for fertility preservation between June 2022 and September 2023 inclusive, using one of the protocols studied:
- GnRH agonist GnRH antagonist Dienogest
You may not qualify if:
- Non-medical or medical fertility preservation excluding endometriosis
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
CHU de Nîmes
Nîmes, France
Related Publications (1)
Calero M, Robert J, Ranisavljevic N, Petit E, Montagut M, Lesourd F, Chevalier N, Huberlant S. Fertility preservation in women with endometriosis: A retrospective non-Inferiority study comparing Dienogest in the PPOS protocol to antagonist and agonist protocols. J Gynecol Obstet Hum Reprod. 2025 Jun;54(6):102950. doi: 10.1016/j.jogoh.2025.102950. Epub 2025 Apr 3.
PMID: 40187738RESULT
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Target Duration
- 12 Months
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
October 20, 2023
First Posted
October 30, 2023
Study Start
December 18, 2023
Primary Completion
April 3, 2024
Study Completion
April 3, 2024
Last Updated
December 10, 2025
Record last verified: 2025-12
Data Sharing
- IPD Sharing
- Will not share