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Clinical study of subretinal transplantation of human embryo stem cell derived retinal pigment epitheliums in treatment of macular degeneration diseases

Clinical study of subretinal transplantation of human embryo stem cell derived retinal pigment epitheliums in treatment of macular degeneration diseases

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR-OCB-15006423
Enrollment
Unknown
Registered
2015-05-12
Start date
2015-05-20
Completion date
Unknown
Last updated
2017-04-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Macular degeneration diseases

Interventions

One cohort:stem cell transplantation

Sponsors

Southwest Hospital, Shapingba District, Chongqing, China
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 65 Years

Inclusion criteria

Inclusion criteria: 1. Patients aging from 18 to 65 years who have signed informed consent for the clinical trial; 2. Patients who have at least one visually impaired eye caused by macular degeneration diseases; 3. Juvenile patients with macular degeneration diseases and patients with age-related macular degeneration diseases who can not be effectively treated with conventional therapies; 4. Eyes under following conditions: 1) Using the early treatment diabetic retinopathy (ETDRs) eye chart in 4 meters distance detection, best corrected visual acuity scores between 19 and 73 letter, including 19 and 73 (or the equivalent of about Snellen eyesight from 20/400 to 20/40); 2) Visual loss is caused by macular degeneration diseases.

Exclusion criteria

Exclusion criteria: 1. Patient with concomitant eye conditions/diseases incuding: (1) Eyes with concomitant diseases which will interfere the visual improvement of the study; (2) Either eye has active intraocular inflammation regardless of the grade of severity; (3) Either eye has active infection (e.g. conjunctivitis, keratitis, scleritis, uveitis, ophthalmia); (4) Either eye has a history of uveitis; (5) Any significant ocular disease that has compromised or could compromise vision in the study eye and confound analysis of the primary outcome, including severe cataract, glaucoma, retinal blood vessels occlusion, retinal detachment, macular hole, vitreous-macula traction; (6) Either eye has iris neovascularization (7) Patients who have only one functioning eye, or the best corrected vision of untreated eye scores less than 24 letters in ETDRS chart(corresponding to 20/320 in Snellen chart). 2. Eyes with history of intraocular surgeries; 3. Patients with systemic conditions including (1) stroke, coronary heart disease, angina pectoris, renal insufficiency needing dialysis, and other systemic diseases that are not suitable to the clinical trial; (2) patients who are allergic to sodium fluorescein; (3) uncontrolled hypertension (systolic pressure>140mmHg,or diastolic pressure>90mmHg); (4) coaggulative function disorder or patients who are using anticoagulant drugs; (5) patients who are using or are going to systemically use drugs that are toxic to lens, retina, or optic nerve like hydroxychloroquine, phenothiazine, ethambutol, tamoxifen, etc.; (6) patients who attended other clinical trials of any medicine within 1 month (or within 5 half-life periods). 4. others (1) patients who have maternity plan in 6 months; (2) women patients who are in pregnancy or lactation period.

Design outcomes

Primary

MeasureTime frame
Early treatment of diabetic retinopathy eye chart (ETDRs);Fluorescein angiography;Static perimetry;Optical coherent tomography (OCT);Flash electroretinogram (FERG);Flash Visual Evoked Potentials;mutifocal electroretinogram (MFERG);

Countries

China

Contacts

Public ContactYin Zhengqin
qinzyin@aliyun.com+86 023 68754401

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026