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Safety and Tolerability of Sub-retinal Transplantation of Human Embryonic Stem Cell Derived Retinal Pigmented Epithelial (hESC-RPE) Cells in Patients With Stargardt's Macular Dystrophy (SMD)

This study is currently recruiting participants. (see Contacts and Locations)
Verified April 2014 by Advanced Cell Technology
Sponsor:
Information provided by (Responsible Party):
Advanced Cell Technology
ClinicalTrials.gov Identifier:
NCT01469832
First received: November 8, 2011
Last updated: September 19, 2014
Last verified: April 2014
  Purpose

The purpose of this study is:

To evaluate the safety and tolerability of RPE cellular therapy in patients with SMD .

To evaluate potential efficacy endpoints to be used in future studies RPE cellular therapy.


Condition Intervention Phase
Stargardt's Macular Dystrophy
Fundus Flavimaculatus
Juvenile Macular Dystrophy
Biological: MA09-hRPE
Phase 1
Phase 2

Study Type: Interventional
Study Design: Endpoint Classification: Safety Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: A Phase I/II, Open-Label, Multi-Center, Prospective Study to Determine the Safety and Tolerability of Sub-retinal Transplantation of Human Embryonic Stem Cell Derived Retinal Pigmented Epithelial (hESC-RPE) Cells in Patients With Stargardt's Macular Dystrophy (SMD)

Resource links provided by NLM:


Further study details as provided by Advanced Cell Technology:

Primary Outcome Measures:
  • safety and tolerance of transplantation [ Time Frame: 12 months ] [ Designated as safety issue: Yes ]
    The safety and tolerance of transplantation of hESC-derived MA09-hRPE will be considered safe and tolerated in the absence of: Any grade 2 NCI grading system)or greater adverse event related to the cell product.Any evidence that the cells are contaminated with an infectious agent, or have tumorigenic potential, Adverse Event and Serious Adverse Event assessment, Serial vital signs and Clinical laboratory tests Direct ophthalmological monitoring Monitoring of RPE cells acceptance/integrity/rejection Monitoring of local and systemic infection or tumorigenic cell transformation


Secondary Outcome Measures:
  • Evidence of successful engraftment [ Time Frame: 12 months ] [ Designated as safety issue: No ]

    •Evidence of successful engraftmentEvidence of successful engraftment will consist of:

    • Structural evidence (OCT imaging, fluorescein angiography, autofluorescence photography, slit-lamp examination with fundus photography) that cells have been implanted in the correct location
    • Electroretinographic evidence (mfERG) showing enhanced activity in the implant location


Estimated Enrollment: 16
Study Start Date: November 2011
Estimated Study Completion Date: December 2014
Estimated Primary Completion Date: November 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Subretinal injection of MA09-hRPE
  • Cohort 1 50,000 cells
  • Cohort 2 100,000 cells
  • Cohort 2a Better Vision 100,000 cells
  • Cohort 3 150,000 cells
  • Cohort 4 200,000 cells
Biological: MA09-hRPE
  • Cohort 1 50,000 cells
  • Cohort 2 100,000 cells
  • Cohort 2a Better Vision 100,000 cells
  • Cohort 3 150,000 cells
  • Cohort 4 200,000 cells

Detailed Description:

This study is a Phase I/II, open-label, non randomized, sequential, multi-center clinical trial. There will be 5 cohorts, the 4 low vision cohorts will contain 3 patients, the better vision cohort will contain 4 patients. The enrolled cohorts will be as follows:

Three SMD patients- 50,000 MA09-hRPE cells transplanted

Three SMD patients- 100,000 MA09-hRPE cells transplanted

Four Better Vision SMD patients- 100,000 MA09-hRPE cells transplanted

Three SMD patients- 150,000 MA09-hRPE cells transplanted

Three SMD patients- 200,000 MA09-hRPE cells transplanted

Patients will be enrolled sequentially, and within each cohort of 3 patients, each patient's clinical course over the first 6 weeks following cell transplantation will be reviewed by an independent (DSMB) before enrollment is opened for the next 2 patients. A full safety assessment of all 3 patients in each cohort will be made by the DSMB when the 3rd patient in each cohort completes 4 weeks of follow-up, and before the first patient in the next cohort receives a cell transplant. The exception is the better vision group where all patients may be enrolled once DSMB approval has been received.

Each cohort will be enrolled sequentially in turn, with the exception of the better vision cohort which may be enrolled in parallel with the other cohorts.

The day of the cell implantation will be Day 0, and patients will remain in the study until the last visit at 12 months.

  Eligibility

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Adult male or female over 18 years of age. Clinical diagnosis of SMD If known, the patient‟s genotype will be recorded in the medical history, if unknown, patient will allow for the submission of a sample for genotyping.

Independently verified clinical findings consistent with SMD. The visual acuity of the eye to receive the transplant will be no better than 20/400. The visual acuity of the eye in the better vision cohort to receive the transplant will be no better than 20/100.

The visual acuity of the eye that is not to receive the transplant will be no better than 20/400 for the worse vision patients and no worse than 20/100 for the better vision patients.

Electrophysiological findings consistent with SMD . Medically suitable to undergo vitrectomy and subretinal injection. Medically suitable for general anaesthesia or waking sedation, if needed.

Medically suitable for transplantation of an embryonic stem cell line:

  • Normal serum chemistry (sequential multi-channel analyzer 20 [SMA-20]) and hematology (complete blood count [CBC], prothrombin time [PT], and activated partial thromboplastin time [aPTT]) screening tests.
  • Negative urine screen for drugs of abuse.
  • Negative human immunodeficiency virus (HIV), hepatitis B (HBV), and hepatitis C (HCV) serologies.
  • No history of malignancy, with the exception of successfully treated basal cell or squamous cell carcinoma of the skin.
  • Negative cancer screening within previous 6 months:

complete history & physical examination; dermatological screening exam for malignant lesions; negative fecal occult blood test negative chest roentgenogram (CXR); normal CBC & manual differential; negative urinalysis (U/A);normal thyroid exam and thyroid panel; if male, normal testicular examination; if over age 40, digital rectal examination (DRE) and prostate specific antigen (PSA); if female, normal pelvic examination with Papanicolaou smear; and if female, normal clinical breast exam and if 50 years of age or older, negative mammogram.

If female and of childbearing potential, willing to use an effective form of birth control during the study.

If male, willing to use barrier and spermicide contraception during the study. Willing to defer all future blood, blood component or tissue donation. Able to understand and willing to sign the informed consent.

Exclusion Criteria:

  • History of malignancy, with the exception of successfully treated basal cell or squamous cell carcinoma of the skin.

History of myocardial infarction in previous 12 months. History of diabetes mellitus. Any immunodeficiency. Any current immunosuppressive therapy other than intermittent or low dose corticosteroids.

Serologic evidence of infection with Hepatitis B, Hepatitis C, or HIV. Current participation in any other clinical trial. Participation within previous 6 months in any clinical trial of a drug by ocular or systemic administration.

Any other sight-threatening ocular disease. Any chronic ocular medications. Any history of retinal vascular disease (compromised blood-retinal barrier. Glaucoma. Uveitis or other intraocular inflammatory disease. Significant lens opacities or other media opacity. Ocular lens removal within previous 3 months

  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01469832

Locations
United Kingdom
Moorefields Eye Hospital NHS Foundation Trust Recruiting
London, United Kingdom, EC1V2PD
Contact: Heather Kneale    44(0) 207 608 4023    mol.therapy@ucl.ac.uk   
Principal Investigator: James Bainbridge, MA MB BChir PhD FRCOpth         
Sponsors and Collaborators
Advanced Cell Technology
Investigators
Principal Investigator: James Bainbridge, MA MB BChir PhD FRCOpth Moorefields Eye Hospital NHS Foundation Trust
  More Information

No publications provided

Responsible Party: Advanced Cell Technology
ClinicalTrials.gov Identifier: NCT01469832     History of Changes
Other Study ID Numbers: ACT hESC-RPE SMD 01 EU, 2011-000054-34
Study First Received: November 8, 2011
Last Updated: September 19, 2014
Health Authority: United Kingdom: Medicines and Healthcare Products Regulatory Agency

Keywords provided by Advanced Cell Technology:
Macular Degeneration
Retinal Degeneration
Retinal Diseases
Eye Diseases
SMD

Additional relevant MeSH terms:
Macular Degeneration
Eye Diseases
Retinal Degeneration
Retinal Diseases

ClinicalTrials.gov processed this record on November 19, 2014