Safety and effectiveness of single-port robot-assisted weight-loss surgery

Study on the Safety and Efficacy of Domestic Single-Port Robot-Assisted Metabolic Bariatric Surgery.

NA · China-Japan Friendship Hospital · NCT07335731

This trial will test whether single-port robot-assisted weight-loss surgery is safe and effective for adults with obesity who meet criteria for metabolic surgery.

Quick facts

PhaseNA
Study typeInterventional
Enrollment50 (estimated)
Ages18 Years to 65 Years
SexAll
SponsorChina-Japan Friendship Hospital (other)
Locations1 site (Beijing)
Trial IDNCT07335731 on ClinicalTrials.gov

What this trial studies

This single-center interventional study at China-Japan Friendship Hospital will perform single-port robot-assisted metabolic (bariatric) operations and collect short-term clinical outcomes on safety and effectiveness. Eligible patients are adults with BMI ≥27.5 kg/m2 who meet local criteria for metabolic weight-loss surgery, can tolerate general anesthesia, and provide informed consent. The study will record intraoperative metrics, complication rates, early weight loss, and recovery measures during the immediate postoperative follow-up. Results are intended to provide further evidence to support clinical adoption of domestic single-port robotic systems.

Who should consider this trial

Good fit: Adults with obesity who meet metabolic surgery criteria (BMI ≥27.5 kg/m2), can tolerate general anesthesia, and agree to sign informed consent are ideal candidates.

Not a fit: Patients who are pregnant, have severe heart, lung, or liver dysfunction, serious coagulation disorders, active tumors, extensive abdominal adhesions, or are otherwise judged unsuitable (including BMI >50 kg/m2 as a relative contraindication) are unlikely to benefit from participation.

Why it matters

Potential benefit: If successful, the procedure could provide a less invasive option with similar weight-loss results while potentially reducing complications and speeding recovery.

How similar studies have performed: Robotic and single-incision laparoscopic bariatric procedures have shown feasibility and acceptable short-term outcomes in small series, but single-port robotic systems are relatively novel and less well studied.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* ①Overweight or obese patients who meet the criteria for metabolic weight loss surgery, with a BMI ≥ 27.5 kg/m2; ② Patients who understand the purpose of the trial, voluntarily participate in the trial, and sign an informed consent form.

Exclusion Criteria:

* ① Patients who cannot tolerate general anesthesia, such as those with severe heart, lung, or liver dysfunction; ② Patients with severe coagulation disorders; ③ Pregnant patients; ④ Patients with concurrent tumors; ⑤ Patients with extensive and severe abdominal adhesions that prevent the establishment of pneumoperitoneum; ⑥ A BMI \> 50 kg/m² is a relative contraindication; ⑦ Patients deemed unsuitable for participation in this trial by any other investigator.

Where this trial is running

Beijing

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Obesity, Robot Surgery

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.