Blue dye to help surgeons see the ureters during colorectal surgery
Part of Cancer, Digestive system clinical trials.
This study tests whether a blue dye called methylene blue can help surgeons identify the tubes that carry urine from the kidneys to the bladder (ureters) during colorectal surgery. This may help avoid accidental injury to the ureters during the operation.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are 18 years or older.
- You are scheduled to have colorectal surgery, such as removal of part or all of the colon or rectum, by any method (open, laparoscopic, or robotic).
- You do not have a known allergy to methylene blue.
- You are not pregnant.
- You are not taking certain antidepressants (like SSRIs, SNRIs, MAOIs, or tricyclic antidepressants).
- You do not have serious kidney or liver disease, or blockage in the kidney or ureter.
- You do not have G6PD deficiency (a condition that can cause red blood cells to break down).
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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