RecruitingNot Applicable

Indocyanine Green Fluorescence Angiography (ICG-FA) in Revisional Bariatric Surgery

Mexico108 participantsStarted 2025-05-06

Plain-language summary

This study will compare different doses of a green fluorescent product that is administered during weight loss surgery in order to observe where blood vessels are located. There is uncertainty around the optimal dose of this product for patients with obesity, so this study will aim to study if the dose in the minimal range recommended by international guidelines is sufficient for most patients or if higher doses are needed with increasing body mass index.

Who can participate

Age range

18 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Diagnosis of obesity with a BMI ≥ 30 kg/m² * Scheduled for revisional bariatric surgery Exclusion Criteria: * Allergy to iodides. * Anticoagulation with products containing sodium bisulfite (due to the risk of ICG-FA inactivation). * Use of radioactive iodine studies within the past 7 days. * Pregnant, breastfeeding, or planning to become pregnant within the next year (due to unknown teratogenic or fertility effects of ICG-FA). * History of liver disease or laboratory findings suggestive of moderate to severe hepatic disease: total bilirubin \>1.5 times the upper limit of normal (ULN), or any elevation of aspartate aminotransferase (AST) above ULN. * Participants who withdraw their consent to participate in the study (elimination criterion).

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Time to Fluorescence Detection

Timeframe: Intraoperative (within 5 minutes post-injection)

Trial details

NCT IDNCT07000539

SponsorInstituto Mexicano del Seguro Social

Sponsor typeOTHER_GOV

Study typeINTERVENTIONAL

Primary completion2026-12-01

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