Autologous Bone Marrow-Derived CD34+, CD133+, and CD271+ Stem Cell Transplantation for Retinitis Pigmentosa

March 15, 2020 updated by: Stem Cells Arabia
A single arm, single center trial to evaluate the safety and efficacy of autologous purified populations of bone-marrow derived stem cells in patients with Retinitis Pigmentosa (BM-SCs) through a 48 month follow up period.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Detailed Description

Retinitis pigmentosa (RP) is an inherited disorder of the photoreceptor cells in the retina. Patients may lose vision since they were young or later in life. Currently, there are more than 60 genes identified as the cause of this condition, one of which, RPE65, has been studied in several gene therapy trials for Leber congenital amaurosis with promising results. Another treatment approach for RP is stem cell therapy. Studies in animal models of RP have shown that subretinal injection of bone marrow-derived mesenchymal stem cells may delay degenerative changes of photoreceptor cells. This is a single arm, single center trial to assess the safety and efficacy of purified adult autologous bone marrow derived CD34+, CD133+, and CD271+ stem cells through a 48 month follow-up period. The combination of these three cell types was based on their diverse potentialities to differentiate into specific functional cell types to regenerate damaged retinal tissue, and the availability of clinical-grade purification system (CliniMACS) and microbeads to purify the target cell populations in clinically-approved methods.

Study Type

Interventional

Enrollment (Anticipated)

50

Phase

  • Phase 2
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Jordan
      • Amman, Jordan, 11953
        • Stem Cells Arabia

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 55 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Retinitis pigmentosa patients diagnosed by ophthalmologists
  • Visual acuity (measured with ETDRS) less than or equal to 20/70 and visual field below 30° central in both eyes.
  • Best corrected visual acuity less than 6/120 by Snellen visual acuity chart

Exclusion Criteria:

  • Other eye conditions that could mask the interpretation of the results
  • Unable to return for follow up
  • Underlying diseases including asthma, heart failure, myocardial infarction, liver failure, renal failure
  • Pregnant and lactating women

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Stem Cells
Intravitreal Injection of bone marrow derived CD34+, CD133+, CD271+ stem cells.
Biological: Stem Cell Transplantation
Bone marrow-derived CD34+, CD133+, CD271+ stem cells in 1.0 ml normal saline will be injected into the vitreous cavity.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
ETDRS Visual acuity change
Time Frame: 12 months from baseline
12 months from baseline

Secondary Outcome Measures

Outcome Measure
Time Frame
Quality of Life: Questionnaire VFQ-25 (Visual Function Questionnaire-25)
Time Frame: 12 months from baseline
12 months from baseline
Color Vision: Ishihara Color Test
Time Frame: 12 months from baseline
12 months from baseline
Contrast sensitivity: CSV-1000E
Time Frame: 12 months from baseline
12 months from baseline

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Stem Cells Arabia

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

April 1, 2014

Primary Completion (Anticipated)

September 1, 2020

Study Completion (Anticipated)

March 1, 2021

Study Registration Dates

First Submitted

February 26, 2016

First Submitted That Met QC Criteria

March 10, 2016

First Posted (Estimate)

March 16, 2016

Study Record Updates

Last Update Posted (Actual)

March 17, 2020

Last Update Submitted That Met QC Criteria

March 15, 2020

Last Verified

March 1, 2020

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • SCA-RP1

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Yes

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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