Ursodeoxycholic Acid (UDCA) as a Neuroprotective Adjuvant Treatment to Rhegmatogenous Retinal Detachment Surgery (UDCA)

This study is indicated for patients with extended rhegmatogenous retinal detachment (RRD) (≥ 2 quadrants) with macula OFF lasting 7 days or less, pseudophakic or aphakic, and scheduled to undergo surgical intervention with vitrectomy and gas tamponade in one of the ophthalmology departments participating in the study.

The main objective is to assess the effectiveness of UDCA in visual acuity recovery at 3 months (i.e., the difference between preoperative visual acuity and visual acuity 3 months after surgery) in pseudophakic or aphakic patients who have undergone successful surgical intervention (reattachment of the retina) through vitrectomy and gas tamponade following rhegmatogenous retinal detachment (RRD).

120 patients will be enrolled and randomized in two groups:

• the experimental arm "UDCA Group," with oral administration of ursodeoxycholic acid (Ursolvan®)
• the control group "Placebo Group," with oral administration of the placebo.

Study Overview

• Status: Recruiting
• Conditions: Retinal Detachment
• Intervention / Treatment: Drug: Ursolvan; Drug: Placebo

• Study Type: Interventional
• Enrollment (Estimated): 120
• Phase: Phase 3

Contacts and Locations

• Study Contact: Name: BEHAR COHEN Francine; Phone Number: +33 0146252275; Email: f.behar-cohen@hopital-foch.com

Study Locations

• France
  • Paris, France, 75014
    • Recruiting
    • Hôpital Cochin
    • Contact: EYMARD Pauline, Dr; Email: pauline.eymard@aphp.fr
    • Principal Investigator: EYMARD Pauline
  • Suresnes, France, 92150
    • Recruiting
    • Hopital Foch
    • Contact: Behar Cohen Francine, Pr; Phone Number: 01 46 25 22 75; Email: .behar-cohen@hopital-foch.com
    • Principal Investigator: Behar Cohen Francine, Pr

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

1. Aged 18 years or older,
2. Scheduled to undergo surgical intervention through vitrectomy,
3. Aphakic or pseudophakic patients,
4. Experiencing rhegmatogenous retinal detachment affecting 2 quadrants or more,
5. Presenting with macula OFF (raised macula) for 7 days or less before the onset of symptoms,
6. Has signed a consent form,
7. Affiliated with a health insurance plan.

Exclusion Criteria:

1. Patients who have previously undergone vitrectomy for retinal detachment,
2. Patients with vitreous hemorrhage or any other associated retinal pathologies,
3. Monophthalmic patients,
4. Women of childbearing age without effective contraceptive methods,
5. Pregnant or lactating women,
6. Hypersensitivity to the active substance, bile acids, or any of the excipients in Ursolvan® (see §6.1.1 of this protocol),
7. Patients with peptic ulcers, acute or chronic liver disease, acute infection or inflammation of the gallbladder or bile ducts, recurrent gallstones, or obstruction of the bile ducts (common bile duct or cystic duct obstruction),
8. Patients with radiopaque calcified gallstones,
9. Patients with severe pancreatic disorders,
10. Patients with Crohn's disease, ulcerative colitis, or other intestinal diseases that may alter the enterohepatic circulation of bile acids,
11. Patients on oral treatment with cholestyramine, colestipol, antacids containing aluminum or magnesium hydroxide and/or smectite (aluminum oxide), cyclosporine, ciprofloxacin, nitrendipine, or dapsone,
12. Patients with galactose intolerance, Lapp lactase deficiency, or glucose and galactose malabsorption syndrome (rare hereditary diseases),
13. Patients participating or in the exclusion period following an interventional research with the use of prohibited medications in this study,
14. Patients under protective custody.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Double

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Experimental arm: 'UDCA'; Experimental arm: 'UDCA': Patients will be treated with ursodeoxycholic acid (UDCA), receiving a single dose of Ursolvan® (10mg/kg) orally within 24 hours before the surgical intervention, followed by a daily dose of 10mg/kg in two divided doses for 30 days.	Drug: Ursolvan; single dose of Ursolvan® (10mg/kg) orally within 24 hours before the surgical intervention, followed by a daily dose of 10mg/kg in two divided doses for 30 days.
Placebo Comparator: Control arm: 'Placebo'; Control arm: 'Placebo': Patients will receive a single dose of placebo orally within 24 hours before the surgical intervention, followed by two doses per day for 30 days.	Drug: Placebo; Patients will receive a single dose of placebo orally within 24 hours before the surgical intervention, followed by two doses per day for 30 days

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Difference in visual recovery (difference between preoperative and postoperative visual acuity) at 3 months postoperative (after a successful reapplication procedure) of at least 6 letters (ETDRS scale) between the two groups (treatment and placebo)	Difference in visual recovery (difference between preoperative and postoperative visual acuity) at 3 months postoperative (after a successful reapplication procedure) of at least 6 letters (Early Treatment Diabetic Retinopathy Study (ETDRS scale) between the two groups (treatment and placebo). The minimum and maximums valus : Minimum value is 6/95 equivalent in ETDRS letter score read at 4 m = 55. Maximum value is 6/6 equivalement in ETDRS letter score read at 4 m= 115. Higher score mean better ourcome	3 months

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Central Nervous Epithelium (CNE) thickness	Central Nervous Epithelium (CNE) thickness, measured by SD-OCT (Spectral-Domain Optical Coherence Tomography), within the central 1mm compared to the contralateral eye in the treated group versus the placebo group (measurement adjusted to the contralateral eye to account for interindividual variability) at 1, 3, and 6 months.	1, 3, and 6 months
Automated microperimetry at 1, 3, and 6 months: Macular sensitivity difference between the two groups.	Automated microperimetry at 1, 3, and 6 months: Macular sensitivity difference between the two groups.	1, 3, and 6 months
Contrast sensitivity measurement using the Clinic CSF2.0 application.	Contrast sensitivity measurement using the Clinic CSF2.012 application (Contrast sensitivity function 2.0 application).	Day 7, Day 30, Day 60, Day 60, Day 90 and Day 180
Presence/absence of abnormal signs on optical coherence tomography (OCT) images (cysts, folds, membrane, ellipsoid zone, external limiting membrane).	Presence/absence of abnormal signs on optical coherence tomography (OCT) images (cysts, folds, membrane, ellipsoid zone, external limiting membrane).	1, 3 and 6 months
Retinal thickness measured by OCT (retinal layers and presence of cysts, layer segmentation and measurement in the central 1 and 3 mm in ETDRS quadrants).	Retinal thickness measured by OCT (retinal layers and presence of cysts, layer segmentation and measurement in the central 1 and 3 mm in ETDRS quadrants).	1, 3 and 6 months
Number of macular cones and retinal pigment epithelium (RPE) cells measured by Adaptive Optics at 1, 3, and 6 months with the "Cellularis" device that allows visualization of cones and RPE.	Number of macular cones and retinal pigment epithelium (RPE) cells measured by Adaptive Optics at 1, 3, and 6 months with the "Cellularis" device that allows visualization of cones and RPE.	1, 3 and 6 months
Blood test: liver parameters - AST (SGOT), ALT (SGPT), PAL, and γ-GT.	Blood test: liver parameters - AST (SGOT), ALT (SGPT), PAL, and γ-GT.	Day 7 and Day 30
Evolution of the best visual acuity measured at Day 0, Day 7, Day 30, Day 60, Day 90, and Day 180: Difference between the treated and placebo groups in the progression curves of visual acuity.	Evolution of the best visual acuity measured at Day 0, Day 7, Day 30, Day 60, Day 90, and Day 180: Difference between the treated and placebo groups in the progression curves of visual acuity.	Day 7 and Day 30
Presence of metamorphopsia.	Presence of metamorphopsia.	1, 3 and 6 months
Tolerance and occurrence of adverse events.	Tolerance and occurrence of adverse events.	1, 3 and 6 months
National Eye Institute Visual Functioning Questionnaire-25 (NEIVFQ-25) quality of life questionnaire before surgery, at ±7 days postoperative, and at 3 months postoperative.	National Eye Institute Visual Functioning Questionnaire-25 (NEIVFQ-25) quality of life questionnaire before surgery, at ±7 days postoperative, and at 3 months postoperative.	1, 3 and 6 months
Correlation between protein levels, bile acids, or other molecular markers in ocular and/or blood fluids and functional and anatomical ocular parameters pre- and post-operatively at different observation times.	Correlation between protein levels, bile acids, or other molecular markers in ocular and/or blood fluids and functional and anatomical ocular parameters pre- and post-operatively at different observation times.	1 month
Correlation between the effective duration of treatment and functional and anatomical outcomes at different observation times.	Correlation between the effective duration of treatment and functional and anatomical outcomes at different observation times.	6 months

Collaborators and Investigators

• Sponsor: Hopital Foch

Study record dates

Study Major Dates

• Study Start (Actual): August 20, 2024
• Primary Completion (Estimated): May 1, 2027
• Study Completion (Estimated): November 1, 2027

Study Registration Dates

• First Submitted: February 28, 2024
• First Submitted That Met QC Criteria: February 28, 2024
• First Posted (Actual): March 6, 2024

Study Record Updates

• Last Update Posted (Actual): May 14, 2025
• Last Update Submitted That Met QC Criteria: May 12, 2025
• Last Verified: May 1, 2025

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Mental Disorders; Eye Diseases; Retinal Diseases; Dissociative Disorders; Retinal Detachment; Gastrointestinal Agents; Cholagogues and Choleretics; Ursodeoxycholic Acid
• Other Study ID Numbers: 2021_0025

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: No