Impact of Bariatric Surgery on Ovarian Reserve in Obese Women
Official title: Evolution of Ovarian Reserve in Severely Obese Women After Bariatric Surgery
Run by Assistance Publique - Hôpitaux de Paris · NCT04583150 · Data updated 2026-11-12
This study is testing how bariatric surgery affects the fertility potential of obese women aged 18 to 37 by looking at changes in their hormone levels over a few years.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years to 37 Years |
| Sex | Women only |
| Enrollment | 238 (estimated) |
| Sponsor | Assistance Publique - Hôpitaux de Paris Academic / other |
| Drugs / interventions | chemotherapy |
| Locations | 14 sites (Angers and 13 other locations) |
| Status | Recruiting |
| Started | December 3, 2020 |
| Main results expected | June 2025 |
| Study ends | March 2028 |
| Registry record updated | February 15, 2024 |
| Trial ID | NCT04583150 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are obese women aged 18 to 37 with a BMI of 35 or higher, either planning to undergo bariatric surgery or not.
✕Probably not a fit
Patients who are not obese or those who are pregnant or planning pregnancy within the next 12 months may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This observational study aims to evaluate the effects of bariatric surgery on ovarian reserve in obese women aged 18 to 37. It will involve matching women who are planning to undergo bariatric surgery with those who are not, based on age and BMI categories. Participants will be followed for 36-42 months, during which their Anti-Müllerian Hormone (AMH) levels will be measured at various intervals to assess changes in ovarian function. The study seeks to provide insights into how weight loss from surgery may influence fertility outcomes in this population.
Why it matters
Potential benefit: If successful, this study could provide valuable information on how bariatric surgery may improve fertility in obese women.
How similar studies have gone: Previous studies have shown some success in understanding the relationship between bariatric surgery and fertility, but this study aims to provide more comprehensive and prospective data.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: Obese women with planned surgery (BS group) 1. Obese women with an indication of bariatric surgery (BMI ≥ 35 kg/m² with an obesity related comorbidity or BMI ≥ 40 kg/m²) 2. Age 18 to 37 years (inclusion possible until the day before the 37th birthday) 3. No pregnancy project in the next 12 months 4. Signed informed consent 5. Affiliated to The French social security except patient on AME (state medical aid) Obese women with no planned surgery (control group) 1. Obese women with BMI ≥ 35 kg/m² 2. Age 18 to 37 years (inclusion possible until the day before the 37th birthday) 3. No pregnancy project in the next 12 months 4. Signed informed consent 5. Affiliated to the French social security except patient on AME (state medical aid) 6. Matched for age and BMI category (35-39.9 kg/m², 40-49.9 kg/m² and ≥ 50 kg/m²) with an operated woman 7. No bariatric surgery project in the next 12 months Exclusion Criteria: For both groups : Obese women with planned bariatric surgery (BS group) and obese women with no planned surgery (control group): 1. Medical condition known to alter ovarian reserve (previous oophorectomy, ovarian surgery, chemotherapy, pelvis or hypothalamic radiotherapy, known premature ovarian insufficiency …) 2. Contraceptive with antigonadotropic action during the month before inclusion 3. Pregnant or lactating woman 4. HIV infection 5. Previous bariatric surgery 6. Expected follow up less than 3 years 7. Absolute contraindication for bariatric surgery (vital risk, anaesthetic contraindication, non stabilized psychiatric disorder, substance addiction)
Where it's running
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CHU Angers
Angers, France Recruiting -
CHU Clermont Ferrand -Site Gabriel Montpied
Clermont-Ferrand, France Recruiting -
AP-HP - Hôpital Louis Mourier
Colombes, France Recruiting -
AP-HP - Groupe Hospitalier Pitié Salpêtrière
Paris, France Recruiting -
AP-HP - Groupe Hospitalier Pitié Salpêtrière
Paris, France Recruiting -
002 CHU Toulouse -Hôpital Rangueil
Toulouse, France Recruiting
Show 8 more locations
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CHU Dijon Bourgogne - Hôpital Le Bocage Sud
Dijon, France Not yet recruiting -
CHU Grenoble-CSO Grenoble-Arc Alpin
Grenoble, France Not yet recruiting -
CHRU Lille -Hôpial Claude Huriez
Lille, France Not yet recruiting -
HCL - Hôpital Lyon -Sud
Lyon, France Not yet recruiting -
AP-HM - Hôpital Nord
Marseille, France Not yet recruiting -
CHU Montpellier Hôpital Lapeyronie
Montpellier, France Not yet recruiting -
CHU Nantes - Hôpital Nord Laennec
Nantes, France Not yet recruiting -
AP-HP - Hôpital Europeen Georges Pompidou
Paris, France Not yet recruiting
Study contacts
- Principal investigator: CIANGURA Cécile, MD — Assistance Publique - Hôpitaux de Paris
- Study coordinator: CIANGURA Cécile, MD
- Email: cecile.ciangura@aphp.fr
- Phone: 01 42 17 57 71
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Sarcopenia After Bariatric Surgery: Changes in Muscle and Function
This study tests how bariatric surgery affects muscle mass, strength, and physical performance over time in adults undergoing the procedure.
-
Flow-controlled versus volume-controlled ventilation during bariatric surgery
This trial will see if flow-controlled ventilation or volume-controlled ventilation gives better oxygen levels and lower airway pressures during bariatric surgery in adults with obesity.
-
Preoperative IV ferric derisomaltose to prevent anemia and improve quality of life in obese patients having bariatric surgery
This trial tests whether a single preoperative IV ferric derisomaltose dose, compared with saline placebo, prevents postoperative anemia and improves quality of life for iron-deficient obese patients undergoing bariatric surgery.
-
Classification and real-time risk-warning system for people having bariatric metabolic surgery
This project will test whether clinical, lab, and biological data from 2,000 people having bariatric metabolic surgery can be used to classify patients and build a model that warns of postoperative risks.
-
Using indocyanine green to map blood flow during revisional bariatric surgery
This test will see if the low guideline dose of indocyanine green or a higher dose gives clearer blood-vessel imaging during revisional bariatric surgery for people with BMI ≥30.
-
Investigating the long-term health effects of obesity treatments on women
This study is trying to see how different obesity treatments affect women's health over time, including their nutrition, bones, muscles, and pregnancy outcomes.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.