NCT06545526

Chemopreventive Effect of Combination of Celecoxib and Metformin in Patients With Familial Adenomatous Polyposis

The Chemopreventive Effect of Celecoxib Monotherapy Versus Combination of Celecoxib and Metformin in Patients With Familial Adenomatous Polyposis: a Pilot Randomized, Open-label, Comparative Study

• Status: Recruiting
• Phase: Phase 3
• Study type: Interventional
• Enrollment: 28 (estimated)
• Sponsor: Yonsei University · Academic / Other
• Sex: All
• Age: 20 Years – 55 Years
• Healthy volunteers: Not accepted

Summary

Familial adenomatous polyposis (FAP) leads to adenomas and eventual adenocarcinomas in colon and less frequently, duodenum. Chemopreventive strategies have been studied in FAP patients to delay the development of adenomas and cancers. The non-steroidal anti-inflammatory drugs (NSAIDs) and selective cyclooxygenase-2 inhibitor have shown the regression of colorectal and duodenal adenomas in FAP patients. However, these drugs showed gastrointestinal damage and cardiovascular risks, and new preventive strategies are needed. Metformin, an anti-diabetic drug, has recently been suggested to have a suppressive effect on tumorigenesis via inhibition of mTOR pathway, and have an inhibitory effect on polyp recurrence after removal of sporadic colorectal polyps. In addition, metformin has a number of potential mechnisms of carciovascular bebefit. We devised a randomized, open-label, comparative study to evaluate the effect of combination of celecoxib and metformin on polyps of colorectum and duodenum in FAP patients.

Detailed description

This clinical trial is a randomized, open-label, comparative study to evaluate the effect of combination of celecoxib and metformin on polyps of colorectum and duodenum in FAP patients. FAP patients, satisfied an enrollment criteria, will be randomly assigned in a 1:1 ratio to receive celecoxib monotherapy or combination of celecoxib and metformin orally for 6 months. The base-line and six-month endoscopic examination (colonoscopy/sigmoidoscopy and upper gastrointestinal endoscopy) will be recorded, and photographs will be taken at the tattoo-marked area. The number and size of polyps, and a qualitative assessment of the total extent of polyposis will be measured.

Conditions

• Familial Adenomatous Polyposis

Interventions

Type	Name	Description
DRUG	celecoxib monotherapy	Patients will be randomly assigned in a 1:1 ratio to receive celecoxib monotherapy or combination of celecoxib and metformin orally for 6 months: celecoxib \[400mg, twice a day\] in arm 1, celecoxib \[400mg, twice a day\] and metformin \[1g, twice a day\] in arm 2.
DRUG	celecoxib and metformin combination	Patients will be randomly assigned in a 1:1 ratio to receive celecoxib monotherapy or combination of celecoxib and metformin orally for 6 months: celecoxib \[400mg, twice a day\] in arm 1, celecoxib \[400mg, twice a day\] and metformin \[1g, twice a day\] in arm 2.

Timeline

• Start date: 2024-08-13
• Primary completion: 2026-06-24
• Completion: 2026-06-30
• First posted: 2024-08-09
• Last updated: 2024-08-09

Locations

1 site across 1 country: South Korea