Mother and baby health after bariatric surgery in pregnancy
Official title: Mother and Offspring's Nutritional Status -Pregnancy After Maternal Bariatric Surgery
Run by Helse Nord-Trøndelag HF · NCT07877233 · Data updated 2026-11-12
This study follows pregnant women who have had bariatric surgery and those who have not to see how nutrition, pregnancy health, and baby outcomes compare.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years to 45 Years |
| Sex | Women only |
| Enrollment | 210 (estimated) |
| Sponsor | Helse Nord-Trøndelag HF Academic / other |
| Locations | 3 sites (Ålesund, Møre og Romsdal and 2 other locations) |
| Status | Recruiting |
| Started | December 25, 2025 |
| Main results expected | December 31, 2027 |
| Study ends | December 31, 2027 |
| Registry record updated | October 20, 2026 |
| Trial ID | NCT07877233 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Pregnant women with or without prior bariatric surgery, including those with BMI ≥25 kg/m2 before pregnancy, who can speak Norwegian or a Scandinavian language and provide informed consent.
✕Probably not a fit
Pregnant women with multiple gestations, BMI <18.5 kg/m2 before pregnancy, diabetes requiring insulin, or those who terminate before 14 weeks may have different risk profiles and may not benefit from the findings.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This is a multicenter, prospective observational study comparing maternal nutrition, glucose regulation, gestational weight gain, and neonatal outcomes in pregnant women with prior bariatric surgery versus those without. Participants are enrolled before 19 weeks of gestation and followed through pregnancy and up to 12 weeks postpartum, with data collected from dietary assessments, blood and urine tests, body composition measurements, and continuous glucose monitoring. The study aims to understand if bariatric surgery increases vitamin and mineral deficiencies or certain pregnancy complications and whether timing of surgery affects outcomes. It includes women with Roux-en-Y gastric bypass or sleeve gastrectomy and uses standardized protocols across sites in Norway and Denmark.
Why it matters
Potential benefit: If successful, the study could inform guidelines to optimize nutrition and monitoring for pregnant women after bariatric surgery.
How similar studies have gone: Previous observational work suggests nutritional and pregnancy risk differences after bariatric surgery, but this study adds prospective data with standardized measures and CGM.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * pregnant * sufficient understanding of the Norwegian or Scandinavian language * written informed consent Exclusion Criteria: * multiple gestations, * pre-pregnancy BMI \< 18.5 kg/m2 * insulin treated diabetes mellitus * termination of pregnancy before 14 weeks (spontaneously or induced) * anorexia * bullemia
Where it's running
-
Ålesund Hospital
Ålesund, Møre og Romsdal, Norway Recruiting -
Namsos Hospital
Namsos, Trøndelag, Norway Recruiting -
St Olavs University Hospital
Trondheim, Trøndelag, Norway Recruiting
Study contacts
- Study coordinator: Siren Nymo, PhD
- Email: siren.nymo@hnt.no
- Phone: +4799514188
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
15-year outcomes after sleeve gastrectomy in France
This study looks at how people who had sleeve gastrectomy have fared over 15 years to see long-term weight changes and health effects.
-
Understanding glucagon and sugar metabolism after meals in people with and without PBH after weight-loss surgery
This study tests how glucagon and post-meal glucose handling differ between people who have post-bariatric surgery hypoglycemia and those who don’t.
-
Collagen Supplements After Sleeve Gastrectomy
This observational study looks to see if taking collagen-containing supplements after sleeve gastrectomy affects muscle mass, body composition, and body image in adults who had bariatric surgery.
-
Postoperative nausea, vomiting and pain after bariatric surgery in Sweden
This study looks at how often people have nausea, vomiting, and pain after bariatric surgery in Sweden and whether anesthesia type or regional blocks affect those outcomes.
-
Hormonal changes after two bariatric surgeries in super-obese people
This study tests whether sleeve gastrectomy with duodenojejunal bypass leads to different hormone responses and less post-meal hypoglycemia than Roux-en-Y gastric bypass in people with extreme obesity.
-
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.
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.