NCT07672821Recruiting
Time-Restricted Eating After Bariatric Surgery
Comparison of Time-Restricted Intermittent Fasting Diet in Individuals With and Without Bariatric Surgery
Source: ClinicalTrials.gov · Last updated 29 Jun 2026
Brief summary (registry, in English)
This study aims to compare the effects of time-restricted eating (TRE, 16/8) in adults with obesity who have and have not undergone bariatric surgery (BS). The study will include adults aged 18-65 years: those with obesity who have not undergone BS, and those who have experienced insufficient weight loss (IWL) or weight regain (WR) following BS. Both groups will follow a 16:8 time-restricted eating protocol for 6 weeks, with an 8-hour eating window recommended between 10:00 AM and 6:00 PM, though participants may adjust to other 16-hour fasting windows. Participants will be evaluated before and after the intervention in terms of anthropometric measurements, biochemical parameters, and dietary habits. The study is being conducted at a private hospital in Bursa, Turkey, and is planned to be completed with a total of 40 participants (20 per group).
- Status (registry)
- Recruiting
- Study type
- Interventional
- Enrollment
- 40 (estimated)
- First submitted
- 23 Jun 2026
- Start date
- 12 Jul 2025
- Primary completion date
- Jun 2026
- Lead sponsor
- Medipol University
- Diseases
- Obesity
- NCT number
- NCT07672821
What you commit to
- Study type: Interventional
- Planned participants: 40
- From 12 Jul 2025 to the primary completion date, Jun 2026
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Other illness
- Acute illness, active infection, or comorbid conditions limiting treatment efficacy and safety, including: cancer, type 1 diabetes, renal or hepatic failure, recent stroke or myocardial infarction, nephrolithiasis, drug or alcohol abuse, eating disorders, severe depression or other psychiatric disorders, inflammatory bowel disease (IBD), neoplasia, arrhythmic heart disease, heart failure, respiratory failure, or corticosteroid therapy
Other
- Pregnant or breastfeeding individuals
- Professional athletes
Who the study is looking for
- Adults aged 18-65 years with obesity who have not undergone bariatric surgery
- Adults aged 18-65 years with obesity who have undergone bariatric surgery and experienced insufficient weight loss (IWL) within 18 months post-surgery, -defined as %EWL \<50% at 18 months
- Adults aged 18-65 years with obesity who have undergone bariatric surgery and experienced weight regain (WR), defined as \>25% increase in %EWL from the lowest recorded weight
Age in the registry: 18 years to 65 years · Sex: All · Does not accept healthy volunteers
Sites (1)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Nev Sağlık Grubu Coordinator of this site? Confirm its status | Bursa | Turkey (Türkiye) | Recruiting |
This page is information, not medical advice. Discuss any trial with your doctor.