NCT02865876

Effectiveness of Corneal Accelerated Crosslinking for Infectious Keratitis

Effectiveness of Corneal Accelerated Crosslinking Versus Conventional Treatment for Infectious Keratitis

• Status: Unknown
• Phase: Phase 3
• Study type: Interventional
• Enrollment: 264 (estimated)
• Sponsor: Instituto de Oftalmología Fundación Conde de Valenciana · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

The objective of this study is to evaluate the efficacy and safety of accelerated cross-linking (Avedro Inc., Waltham, USA) in the management of microbial keratitis as adjunctive therapy.

Detailed description

Investigators perform a comprehensive ophthalmological examination, including evaluation of risk factors (immunosuppressive status, ocular trauma, previous ocular surgery, contact lens wear, topical corticosteroids use), best-corrected visual acuity (Snellen chart), slit-lamp biomicroscopy, tonometry and fundoscopy. In addition, anterior segment optical coherence tomography imaging (Visante, Carl Zeiss Meditec, Dublin, California, USA), corneal scrapes, culture and clinical photographs at day 1, day 7, month 1 and 3 will be analyzed. Each participant will be assigned to one of four groups after randomization. Group 1: Initial ulcer on treatment with antibiotic plus sham (n = 66), these partcipants will receive only topical moxifloxacin 0,5% (Vigamoxi, Alcon, Texas, USA) and sham CXL; Group 2: Initial ulcer on treatment with antibiotic plus cross-linking (CXL) (n = 66) receive moxifloxacin plus CXL (riboflavin 0.1% during 10 minutes and irradiation 30 mW/cm2 during 3 minutes using accelerated CXL); Group 3: Refractory corneal ulcer on treatment with antibiotic plus sham (n=66), receive only topical antibiotic plus sham CXL; Group 4: Refractory corneal ulcer on treatment with antibiotic plus CXL will receive their standard medications plus CXL. Statistical analysis will be divided into four phases: 1) Analysis of compliance, 2) Intention to treat, 3) Losses to follow-up and 4) Variable-response (healing) using Stata/MP 12.0 (Stata Corp., College Station, TX).

Conditions

• Keratitis

Interventions

Type	Name	Description
PROCEDURE	Accelerated Corneal Cross-linking	All participants in this group receiving conventional therapy (moxifloxacin 0,5% for bacterial keratitis or natamycin for mycotic keratitis) plus accelerated cross-linking (Avedro Inc., Waltham, USA) under topical anesthesia using 0.1% riboflavin (Vibex, Avedro Inc, Waltham, USA) for 10 minutes and irradiation 30 mW/cm2 during 3 minutes.

Timeline

• Start date: 2015-06-01
• Primary completion: 2016-08-01
• Completion: 2017-03-01
• First posted: 2016-08-15
• Last updated: 2016-08-15

Locations

1 site across 1 country: Mexico