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Ursodeoxycholic Acid (UDCA) and Atorvastatin Efficacy on Gallstone Prevention After Bariatric Surgery

Combined and Individual Effects of Ursodeoxycholic Acid (UDCA) and Atorvastatin on Gallstone Prevention After Bariatric Surgery: a 2^2 factorial triple-blinded randomised controlled trial

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
IRCT
Registry ID
IRCT20240724062536N1
Enrollment
308
Registered
2025-02-28
Start date
2024-10-06
Completion date
Unknown
Last updated
2025-07-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Gallstones. Calculus of gallbladder without cholecystitis

Interventions

Intervention 1: Intervention group: UDCA only,Ursobil at a dose of 600 twice a day and a placebo tablet. Intervention 2: Intervention group: Atorvastatin, 40 mg once daily and two placebo tablets. Int

Sponsors

Tehran University of Medical Sciences
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 65 Years

Inclusion criteria

Inclusion criteria: Adults aged 18 to 65 years who are candidates for RYGB or sleeve gastrectomy (those with a BMI higher than 35 kg/m2 or those with a BMI higher than 30 kg/m2 and with obesity-related diseases) People with a healthy gallbladder No contraindications for UDCA or atorvastatin. Willingness and ability to provide written informed consent. Individuals without severe comorbidities that could complicate surgery or recovery.

Exclusion criteria

Exclusion criteria: Those for whom gallstones have been identified in the preoperative ultrasound History of bariatric or gallbladder surgery. Use of drugs that interfere with UDCA or atorvastatin (cholestyramine, colestipol, aluminum-containing antacids, and estrogens) and intestinal conditions that interfere with the absorption of these drugs. Current use of contraindications to lipid-lowering medications (including HIV protease inhibitors such as ritonavir, warfarin, cyclosporine, verapamil, and amiodarone) People with intolerance or allergy to UDCA or atorvastatin Pregnancy or breastfeeding.

Design outcomes

Primary

MeasureTime frame
Gallstones incidence. Timepoint: At 6 month and 1 year. Method of measurement: Sonography.

Secondary

MeasureTime frame
Cholecystitis. Timepoint: 6 month and 1 year. Method of measurement: History and Sonography.

Countries

Iran (Islamic Republic of)

Contacts

Public ContactErfan Shirmohamadi

Tehran University of Medical Sciences

shirmohamadi.erf@gmail.com+98 41 3440 3475

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026