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Effects of Subtenon-injected Autologous Platelet-rich Plasma on Visual Functions in Eyes With Retinitis Pigmentosa

NCT04238858 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 48

Last updated 2020-01-23

No results posted yet for this study

Summary

Purpose One of the main reasons for apoptosis and dormant cell phases in degenerative retinal diseases such as retinitis pigmentosa (RP) is growth factor withdrawal in the cellular microenvironment. Growth factors and neurotrophins can significantly slow down retinal degeneration and cell death in animal models. One possible source of autologous growth factors is platelet-richplasma.The purpose of this study was to determine if subtenon injections of autologous platelet-rich plasma (aPRP) can have beneficial effects on visual function in RP patients by reactivating dormant photoreceptors.

Conditions

Interventions

BIOLOGICAL

Platelet rich plasma

blood is drawn from the patient's antecubital vein and inserted into four 3.0 ml vacutainer tubes that contain trisodium citrate. These four tubes were placed in a centrifuge machine, and centrifugation was carried out at 2500 rpm (580×g) for 8 min within a 30-min blood collection period. As a result of centrifugation, the plasma was separated in the vacutainer tubes from the remaining blood components. Three different layers formed in the tubes: red blood cells at the bottom, aPRP in the middle layer, and aPPP in the top layer. A total of 1.5 ml of the middle layer (which mainly contained platelets) was withdrawn by syringe, and it was immediately injected into the subtenon space of each eye.

Sponsors & Collaborators

  • Ankara Universitesi Teknokent

    lead OTHER

Principal Investigators

  • Umut Arslan, MD · Ankara Universitesi Teknokent

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
55 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2016-09-01
Primary Completion
2017-02-28
Completion
2018-01-30

Countries

  • Turkey (Türkiye)

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04238858 on ClinicalTrials.gov