Oocyte Freezing for Fertility Preservation in Benign Ovarian Tumors
OFBOT
Systematic Proposal of Fertility Preservation by Oocyte Freezing in Case of Benign Ovarian Tumors With High Risk of Recurrence
1 other identifier
observational
82
1 country
1
Brief Summary
Benign ovarian cysts are frequent during women's life. They are diagnosed with pelvic pain or fortuitously during an ultra-sonographic exam. In case of persistence,a surgery will be necessary to identify the nature of the cyst and assess its benignity. In some case, cysts are recurrent and multiple surgeries are needed leading to a significant risk of ovarian damage by follicular depletion. Oocyte cryopreservation is no longer considered as an experimental technique of Fertility Preservation since 2013 as it has been recognized to be efficient and safe. According to reproductive medicine scientific committees and the French ethic law, fertility preservation has to be proposed in every situation of infertility risk. To date, there is no cohort study dedicated to fertility preservation by oocyte freezing in this specific subgroup of patients. The purpose of the study is to prospectively evaluate the oocyte number and quality after controlled ovarian hyperstimulation in patients with recurrent ovarian cysts.
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 Jul 2021
Typical duration 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
January 28, 2019
CompletedFirst Posted
Study publicly available on registry
January 31, 2019
CompletedStudy Start
First participant enrolled
July 28, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 4, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
April 4, 2025
CompletedDecember 23, 2025
December 1, 2025
3.7 years
January 28, 2019
December 16, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Number of mature oocytes eligible for cryopreservation
After 15 days of controlled ovarian hyperstimulation (COH)
Secondary Outcomes (3)
Percentage of immature or morphologically abnormal oocytes
Real-time, the day of egg retrieval
Number of mature follicles (≥15 mm) and intermediary (10-14 mm) during ovarian stimulation
The day of HCG triggering at the end of ovarian stimulation
Questionnaire on tolerance and complications
One week after the egg retrieval
Eligibility Criteria
Young women with benign ovarian tumors and high risk of further infertility due to surgery
You may qualify if:
- women with benign ovarian tumor with high risk of recurrence, i-e, endometrioma, dermoid cysts or mucinous cysts.
- women with previous surgery and/or high risk of ovarian damage: bilateral cysts, cyst diameter higher than 5 cms
- Having a social insurance
- Able to give an informed consent
You may not qualify if:
- Borderline tumors
- Undetectable AMH levels
- Personal history of thrombo-embolic events
- pregnancy
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Hop Jeanne de Flandre Chu Lille
Lille, 59037, France
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Christine Decanter, MD
University Hospital, Lille
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 28, 2019
First Posted
January 31, 2019
Study Start
July 28, 2021
Primary Completion
April 4, 2025
Study Completion
April 4, 2025
Last Updated
December 23, 2025
Record last verified: 2025-12