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To Evaluate the Clinical Safety and Efficacy of Limbal Stem Cell for Treatment of Superficial Corneal Pathologies".

NCT04932629 · Status: UNKNOWN · Phase: EARLY_PHASE1 · Type: INTERVENTIONAL · Enrollment: 20

Last updated 2021-06-21

No results posted yet for this study

Summary

This study proposes to investigate the transplantation of ex-vivo cultivated allogenic limbal stromal cells for the treatment of the corneal pathologies. The limbus is an ideal source as the stem cells are numerous and located very superficially in the tissue (17). Pre-clinical work suggests human corneal stromal stem cells can be isolated from the cadaveric tissues, cultivated in conditions suitable for cell based therapy and used to prevent fibrosis in a murine model of corneal stromal scarring. Further, these cells are able to successfully engraft, differentiate, and mediate wound healing in the corneal stroma such that the tissue remains healthy, free of fibrotic tissue, and optically transparent. The clinical implications of these findings are substantial in that it represents the potential to lessen the burden on donor tissue necessary for corneal allografts by using cultured cells to regenerate tissue. We foresee the ability of a clinician to and grow and expand the cells in number and after surgically removing the scar tissue from the wounded eye, apply the cultured limbal stem cells to regenerate healthy, transparent tissue.

Conditions

  • Corneal Scars and Opacities

Interventions

BIOLOGICAL

Ex-vivo cultivated Allogeneic limbal stromal stem cells

n this prospective intervention study patients with unilateral superficial corneal scars will undergo a surgical procedure and in the second procedure, the eligible patients will undergo corneal transplant surgery, when the central corneal epithelium will be removed using a surgical sponge. 0.1ml of stromal cells in a concentration of 0.5x10\*6 cells/µl diluted in the thrombin component of fibrin glue (TISEEL, Baxter) will be applied to the debrided corneal stroma. A soft bandage contact lens will be placed over the cornea at the end of the procedure. The patient will receive topical antibiotic and steroid eye drops in the post-operative period. Periodic comprehensive ophthalmic evaluation along with anterior segment optical coherence tomography (ASOCT) scanning and slit-lamp photography will be done at Day 1, Day 7, Day 30, Day 90, Day 180 and Day 360 and 720 Days post-surgery

Sponsors & Collaborators

  • L.V. Prasad Eye Institute

    lead OTHER

Principal Investigators

  • Dr.Vivek Singh, PhD · LV Prasad Eye Institute (Hyderabad Eye Research Foundation)

  • Dr.Sayan Basu, MBBS.MS · LV Prasad Eye Institute (Hyderabad Eye Research Foundation)

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
60 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2021-07-31
Primary Completion
2021-12-31
Completion
2023-01-31

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04932629 on ClinicalTrials.gov