Autologous Bone Marrow-Derived Stem Cells Transplantation For Retinitis Pigmentosa

September 19, 2011 updated by: Rubens Camargo Siqueira, University of Sao Paulo

Phase 1 Study Of Autologous Bone Marrow-Derived Stem Cells Transplantation For Retinitis Pigmentosa

The purpose of this study is to evaluate the short-term safety of a single intravitreal injection of autologous bone marrow stem cells in patients with retinitis pigmentosa.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

A prospective phase I, nonrandomized open-label study of retinitis pigmentosa patients with best-corrected ETDRS visual acuity (BCVA) worse than 20/200. Standardized ophthalmic evaluation will be perform at baseline and at weeks 1, 4,12 and 24 (±1) following intravitreal injection of 10 x 106 bone marrow stem cells/ 0,1ml . Three measures will be used to evaluate the short-term safety of intravitreal of ABMDSC: 1) severe visual loss, defined as a drop in 15 letters on ETDRS visual acuity scale; 2) decrease in ERG response; 3) decrease in 5 square degrees on visual field; secondary safety outcomes : 1) increase in intra-ocular inflammation defined herein as anterior chamber cells and flare higher than 3+ for more than 1 month after injection according to a classification described elsewhere ; 2) decrease in CMT more than 50um; 3)genesis of abnormal tissues (teratomas) or tumors; 4) qualitative changes in retinal or choroidal perfusion, like macular nonperfusion. Secondary outcome measures will be used to evaluate the short-term efficiency of intravitreal of ABMDSC: 1) improvement in ERG response; 2) increase in visual field: 3) increase in CSMT > 50um and not related to macular edema; 4) increase > 5 letters on BCVA

Study Type

Interventional

Enrollment (Actual)

5

Phase

  • 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

  • Brazil
    • SP
      • São Jose do Rio Preto, SP, Brazil, 15010-100
        • CPRS

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 and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • diagnosis of retinitis pigmentosa
  • logarithm of minimum angle of resolution (logMAR) BCVA of 1.0 (Snellen equivalent, 20/200) or worse

Exclusion Criteria:

  • previous ocular surgery other than cataract
  • presence of cataract or other media opacity that would influence ocular fundus documentation and adequate ERG and visual field evaluation
  • other ophthalmic disease like glaucoma and uveitis
  • previous history of blood disorders like leukemia
  • known allergy to fluorescein or indocyanine green
  • known coagulation abnormalities or current use of anticoagulative medication other than aspirin.

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: NON_RANDOMIZED
  • Interventional Model: SINGLE_GROUP
  • Masking: NONE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
EXPERIMENTAL: Test group
open-label study of retinitis pigmentosa patients with best-corrected visual acuity (BCVA) worse than 20/200.
Biological: intravitreal injection of autologous bone marrow stem cells
One intravitreal injection of a 0.1-ml cell suspension containing around 10x106 bone marrow mononuclear stem cells(BMMSC). All treatments were performed by a single retinal specialist using topical proparacaine drops under sterile conditions (eyelid speculum and povidone-iodine). Autologous BMMSC were injected into the vitreous cavity using a 27 gauge needle inserted through the inferotemporal pars plana 3.0 - 3.5 mm posterior to the limbus. After the injection, central retinal artery perfusion was confirmed with indirect ophthalmoscopy. Patients were instructed to instill one drop of 0.3% ciprofloxacin into the injected eye four times daily for 1 week after the procedure.
Other Names:
  • Autologous bone marrow mononuclear stem cells

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
severe visual loss, defined as a drop in 15 letters on ETDRS visual acuity scale
Time Frame: 3-6 months
3-6 months

Collaborators and Investigators

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

Sponsor

University of Sao Paulo

Investigators

  • Principal Investigator: Rubens C Siqueira, MD,PhD, Research Center Rubens Siqueira,Catanduva Medicine School and São Paulo University

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

May 1, 2009

Primary Completion (ACTUAL)

January 1, 2010

Study Completion (ACTUAL)

February 1, 2010

Study Registration Dates

First Submitted

February 10, 2010

First Submitted That Met QC Criteria

February 12, 2010

First Posted (ESTIMATE)

February 15, 2010

Study Record Updates

Last Update Posted (ESTIMATE)

September 20, 2011

Last Update Submitted That Met QC Criteria

September 19, 2011

Last Verified

September 1, 2011

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CPRS

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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