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Role of Dietary Habits in Efficacy of Bariatric Surgery - Study A

Role of Dietary Habits in Efficacy of Bariatric Surgery - Study A

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT03470558
Enrollment
290
Registered
2018-03-20
Start date
2018-12-06
Completion date
2025-03-01
Last updated
2025-12-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Bariatric Surgery, Obesity, Sleeve Gastrectomy

Keywords

Diet, Dietary Habits, Weight changes

Brief summary

The purpose of the study is to evaluate how dietary habits in the post-surgical year impact outcomes of bariatric surgery.

Detailed description

The obesity epidemic is a major public health concern with a significant economic burden in the USA. Bariatric surgery is the most effective and durable weight loss treatment, with long-term cardiometabolic health benefits. Among different types of bariatric procedures, sleeve gastrectomy (SG) has become the most commonly performed in USA. While SG is expected to result in a 50-60% excess weight loss, inter-individual differences in weight loss are large and approximately 25% of patients can be considered poor weight-loss responders who either do not lose a substantial amount of weight or regain the lost weight afterwards. The mechanisms underlying this clinical variation remain unknown and interventions to improve on these outcomes critically lacking. Of interest, altered daily dietary habits are experienced by a substantial proportion of bariatric surgery candidates, raising the question whether such alterations may contribute to inter-individual differences in weight loss success. Therefore, the purpose of this study is to evaluate how dietary habits in the post-surgical year impact outcomes of bariatric surgery.

Interventions

OTHERDietary habits

Sleeve gastrectomy patients will be asked to monitor dietary habits before surgery and at 2, 6, and 12 months after surgery.

Sponsors

National Heart, Lung, and Blood Institute (NHLBI)
CollaboratorNIH
Brigham and Women's Hospital
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
21 Years to 60 Years
Healthy volunteers
No

Inclusion criteria

* Bariatric surgery (sleeve gastrectomy) patients

Exclusion criteria

* Prior bariatric surgical procedures

Design outcomes

Primary

MeasureTime frameDescription
Change in BMI at 1-year post-surgicalBaseline and one yearBody mass index at one year after surgery compared to baseline

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026