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Completed

NCT Number: NCT06157606

Prediction Model for Inadequate Weight Loss After Sleeve Gastrectomy

This study aims to develop and validate a prediction model for estimating the probability of inadequate weight loss one year after sleeve gastrectomy.

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Key information

Conditions

Bariatric Surgery Body Weight Body Weight Changes Pathological Conditions, Signs and Symptoms Signs and Symptoms Sleeve Gastrectomy Weight Loss

Age range

16 year–70 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Yuntao Nie

Beijing, 100029, China

About this study

Inadequate weight loss (IWL) is a major problem after sleeve gastrectomy, leading to the recurrence of obesity-related comorbidities and increased risk of revision surgery. It is important to identify the high-risk individuals for IWL before surgery so that clinicians can initiate more rigorous weight monitoring and management strategies. Therefore, this study aims to develop a prediction model using preoperative clinical and laboratory data to estimate the risk of IWL one year after sleeve gastrectomy, and then validate it using two separate datasets.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • BMI ≥ 27.5 kg/m2;
  • 16 years ≤ age ≤ 70 years;
  • Complete preoperative data and one-year follow-up information

Exclusion criteria

  • Patients who did not undergo SG;
  • Incomplete follow-up information;
  • Patients with a history of pituitary or thyroid disease;
  • Female patients who conceived within one year after surgery

Treatment and study plan

Primary outcomes

  1. Area under receiver operating characteristic curve (AUC) of the prediction model

    Time frame: 1 year

    AUC reflects the discriminatory ability of the model, which was measured in this study.

Secondary outcomes

  1. Brier score of the prediction model

    Time frame: 1 year

    Brier score reflects the calibration of the model, which was measured in this study.

Sponsors and collaborators

Lead sponsor

China-Japan Friendship Hospital

Other

Collaborators

  • Jining First People's Hospital
  • The Second Hospital of Shandong University

Registry information

Important dates

Study start
2017
Primary completion
2024
Study completion
2024
First posted
Dec 6, 2023
Registry last updated
Jul 8, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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