An interventional study of Robot-assisted single-port bariatric surgery in Obesity and Robot Surgery, sponsored by China-Japan Friendship Hospital. Recruiting at 1 site in China. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2026-09-16.
Sponsored by China-Japan Friendship Hospital · Not applicable, Interventional, and Treatment
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Among 10 studies in Obesity by China-Japan Friendship Hospital — 8 open to participants now, 8 under way, none of them phase 3. Obesity · China-Japan Friendship Hospital.
Among the 10 studies in Obesity by China-Japan Friendship Hospital, this one is one of 3 that started in 2025, is one of 4 with no phase, and was the 7th registered.
11,536 studies on the registry are indexed under Obesity; 2,042 are open to participants now.
Browse Obesity studies →8 of the 10 studies in Obesity by China-Japan Friendship Hospital are open now, in 1 country. Recruiting first, the newest first:
China-Japan Friendship Hospital · Sites in China
Ages 18–60
China-Japan Friendship Hospital · Sites in China
Ages 18–65
China-Japan Friendship Hospital · Sites in China
Ages 16–70
China-Japan Friendship Hospital · Sites in China
Ages 16–70
China-Japan Friendship Hospital · Sites in China
Ages 18–60
By country, each count listing its studies:
Of the 1,339 Obesity studies recruiting now, 377 (28%) set no upper age limit and 859 (64%) stop at 75 or younger; 167 take children under 18; 490 take healthy volunteers.
This study: 18 Years to 65 Years · all sexes · no healthy volunteers.
The full table on the hub →This tab as a report to print or save as PDF → With an account.
10 studies; the count open now beside each. This study's row is marked.
First in 2017; this study’s year is marked. 3 started in 2025.
By drug class, each counting the studies that test any of its medicines:
This study's planned enrollment of 50 is below the median of 67 across 9,016 interventional studies indexed under Obesity.
Median enrollment 200 across the 5 interventional studies, 800 across the 5 observational. Of the 2 that completed or were terminated, 0 (0%) have results posted.
This tab as a report to print or save as PDF → With an account.
China-Japan Friendship Hospital is the lead sponsor of 179 studies on the registry; 112 are open to participants now.
3 of the studies in Obesity by China-Japan Friendship Hospital that are under way reach primary completion within a year, 0 of them phase 3. Phase 3 first, then by date:
| Study | Primary completion |
|---|---|
| NCT07236788China-Japan Friendship HospitalStudy on Supplement of Intravenous Ferric Derisomaltose to Prevent Anemia and Improve the Quality of Life in Obese Patients With Iron Deficiency. | 2026-12-30 |
| NCT06169033China-Japan Friendship HospitalRadiomics of Intra-abdominal and Subcutaneous Adipose Tissue Predict the Efficacy of Bariatric Surgery (RISABS) | 2026-12-31 |
| NCT07335731China-Japan Friendship HospitalStudy on the Safety and Efficacy of Domestic Single-Port Robot-Assisted Metabolic Bariatric Surgery. | 2027-04-30 |
Add all 3 to your calendar (.ics) → With an account.
Among the 10 studies in Obesity by China-Japan Friendship Hospital, from their registry updates:
Nothing recorded among them since 2026-09-25.
This tab as a report to print or save as PDF → With an account.
This study aims to obtain short-term clinical results on the safety and efficacy of single-port robot-assisted metabolic weight loss surgery, and to provide further evidence for the clinical promotion of single-port robot systems.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
BMI (body mass index)
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraindication
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Device: Robot-assisted single-port bariatric surgery
For overweight or obese patients (BMI≥27.5kg/m2) who meet the indications for metabolic surgery, single-port robot-assisted sleeve gastrectomy or gastric bypass surgery is performed.
Percentage of weight loss
Time frame: Postoperative 1 month, 3 months, 6 months, 12months
blood pressure
Time frame: 1 month, 3 months, 6 months, and 12 months post-surgery
operation time
Time frame: Intraoperative
Postoperative complications (postoperative bleeding, gastric leakage, anastomotic leakage, abdominal infection, incisional hernia, etc.)
Time frame: 12 months post-surgery
Physician fatigue level (Visual Analogue Scale)
Time frame: 1 day after surgery
blood sugar
Time frame: 1 month, 3 months, 6 months, and 12 months post-surgery
body fat percentage
Time frame: 1 month, 3 months, 6 months, and 12 months post-surgery
estimated blood loss
Time frame: 1 month after surgery
conversion to laparoscopic or open surgery
Time frame: 1 month after surgery
30-day reoperation rate
Time frame: 1 month after surgery
30-day readmission rate
Time frame: 1 month after surgery
length of postoperative hospital stay
Time frame: 1 month after surgery
Physician satisfaction level (Net Promoter Score, NPS)
Time frame: 1 day after surgery
Started Jul 2025 (actual). Primary completion is estimated for Apr 2027, 21 months after the start.
Of 3,685 non-industry interventional studies with no phase under Obesity, half reached primary completion within 23 months of starting (the median), counting those still running; a quarter within 10 and three quarters within 43. This study's planned 21 months is close to that.
Counting every sponsor, half of 3,848 studies reached it within 22 months; a quarter within 9 and three quarters within 42.
How these figures are worked out, and which studies are left out of them.
Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.
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