Official Title
Effect of Intravitreal Bone Marrow Stem Cells on Ischemic Retinopathy
Phase
Phase 1/Phase 2Lead Sponsor
University of Sao PauloStudy Type
InterventionalStatus
Unknown statusIndication/Condition
IschemiaIntervention/Treatment
bone marrow derived mesenchymal stem cells ...Study Participants
30This study aims to evaluate the behavior of the intravitreal use of bone marrow derived stem cells in patients with ischemic retinopathy.
Evaluate the effects on visual acuity, electroretinography, fluorescein angiography and optical coherence tomography in 30 patients with ischemic retinopathy, including diabetic retinopathy with severe loss of retinal capillaries undergoing intravitreal injection of bone marrow derived 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.
Open-label study of Ischemic Retinopathy patients with best-corrected visual acuity (BCVA) worse than 20/200. Intervention: Biological: intravitreal injection of autologous bone marrow stem cells
Inclusion Criteria: diagnosis of Ischemic Retinopathy Enlargement of foveal avascular zone-FAZ (ischaemia or capillary drop out of >30% on Fluorescein retinography logarithm of minimum angle of resolution (logMAR) BCVA of 1.0 (Snellen equivalent, 20/200) or worse Able (in the Investigator's opinion) and willing to comply with all study requirements 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