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Clinical Trial Summary

Neurotrophic keratopathy (NK) is a condition where the cornea loses its capacity to feel pain and touch. This causes a decrease in the production of certain substances that maintain the integrity of the corneal epithelium (the most superficial layer that covers the cornea). As a result, the cornea cannot heal wounds as fast as it should and this could lead to corneal breakdown. This disease is chronic, meaning that it does not resolve quickly, and the treatments commonly used to manage it (such as artificial tears) take a long time to work, which makes it hard to follow doctor's orders. Autologous platelet-rich plasma is a substance that is obtained from the patient's own blood and it may contain those components that are missing in the tears of people with NK. The purpose of this experiment is to find out whether APRP+PFAT is better than APRP alone or PFAT alone in the treatment of NK. Participants will be randomly assigned to one of three groups: one group will start with APRP, other will start with PFAT and another with PFAT+APRP. The participants will receive each treatment for four weeks, and then the subjects will switch groups and use them for four weeks each (12 weeks total). Investigators will evaluate different parameters that will let us know if your condition is improving. These evaluations will be carried out every four weeks from the start to the end of the protocol. In case of intolerance or adverse effects, treatment will be discontinued.


Clinical Trial Description

Neurotrophic keratopathy is characterized by impaired corneal sensitivity that results in a decrease in neurotrophic and epitheliotropic factors that are essential for proper corneal epithelial and ocular surface function. This neurotrophic state halts mitosis and epithelial turnover, which in turn slow down wound healing and lead to epithelial breakdown. Due to the chronicity of this disease, treatment adherence becomes a problem for patients; furthermore, results with conventional treatments such as preservative-free artificial tears are discouraging. Hematopoietic derivatives such as APRP may replace those missing neurotrophic factors and lead to epithelial healing in a faster and more comfortable manner. The objective of this study is to determine if APRP+PFAT is better than autologous platelet-rich plasma (APRP) or preservative-free artificial tears (PFAT) in the treatment of neurotrophic keratopathy. Subjects will be randomly assigned to one of three groups and treatment will be administered for four weeks. After this period, subjects will switch groups and receive the new treatment for four more weeks (cross-over). After this second period is completed, subjects will receive the last treatment for four more weeks. A thorough ophthalmologic evaluation will be performed before starting treatment and every four weeks until completion. Treatment will be discontinued if there are adverse effects or treatment intolerance. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04604834
Study type Interventional
Source Universidad Autonoma de Nuevo Leon
Contact Karim Mohamed-Noriega, M.D.
Phone +52 8183469259
Email karim.mohamednrg@uanl.edu.mx,drkmohamed1@gmail.com
Status Recruiting
Phase N/A
Start date November 1, 2020
Completion date December 2025

See also
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Completed NCT04957758 - Phase 2 Clinical Trial to Evaluate OC-01 Nasal Spray in Subjects With Neurotrophic Keratopathy Phase 2
Terminated NCT03084861 - A Clinical Trial to Asses Efficacy and Safety of Cord Blood Eye Drops in Neurotrophic Keratopathy Phase 1/Phase 2
Active, not recruiting NCT06411145 - Open-label Trial to Evaluate Efficacy and Safety of rhNGF on Corneal Thickness Via AS-OCT in Neurotrophic Keratitis Phase 4
Recruiting NCT05555589 - Assessment of the Safety and Efficacy of 0.1% RGN-259 Ophthalmic Solution for the Treatment of NK: SEER-2 Phase 3
Not yet recruiting NCT06331910 - Efficacy and Safety of Topical Insulin for Neurotrophic Corneal Ulcers Phase 4