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Clinical Trial Details — Status: Withdrawn

Administrative data

NCT number NCT04598282
Other study ID # IRB00021203
Secondary ID
Status Withdrawn
Phase N/A
First received
Last updated
Start date January 21, 2021
Est. completion date July 28, 2022

Study information

Verified date September 2022
Source Oregon Health and Science University
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

To prospectively evaluate the effectiveness of Prokera Slim in adults with primary or recurrent herpetic epithelial keratitis in terms of visual function, corneal opacity, time to resolution, cost of care, number of patient visits.


Description:

Cryopreserved amniotic membrane (AM) contains anti-inflammatory, anti-scarring and antiangiogenic effects known in treating many ocular surface diseases. This notion is further strengthened by many studies showing that amniotic membrane can effectively control inflammation in HSV stromal keratitis in a murine model of HSV necrotizing keratitis and surgical application in ~7 human studies of epithelial and stromal HSV keratitis with or without an adjuvant antiviral therapy. More importantly, PROKERA SLIM in conjunction with oral acyclovir has been shown to facilitate the ease of early intervention to accelerate restoration in herpetic keratitis in 2 case series of 5 eyes. However, a formal prospective study has not been performed.


Recruitment information / eligibility

Status Withdrawn
Enrollment 0
Est. completion date July 28, 2022
Est. primary completion date October 2021
Accepts healthy volunteers No
Gender All
Age group 18 Years to 100 Years
Eligibility Inclusion Criteria: 1. The subject (male or female) is at least 18 years of age. 2. The subject is presenting with primary or recurrent herpetic dendritic epithelial keratitis based on investigator judgement 3. The subject is presenting with acute (within 30 days) herpetic dendritic epithelial keratitis 4. The subject is willing to comply with all study procedures and is able to consent. Exclusion Criteria: 1. Clinical signs of a cause other than herpes simplex virus 2. Presence of corneal ulcer with or without microbial infection 3. Lid surface abnormalities or conjunctival scarring that affect lid function in either eye 4. Atopic disease 5. History of penetrating keratoplasty 6. Active stromal keratitis or iritis 7. Presence of systemic or ocular infection or inflammation that is not related to herpes simplex virus (such as Sarcoidosis, Cogan syndrome, atopy, Lyme disease, Syphilis, mumps, Epstein-Barr virus) 8. Ocular surface malignancy 9. History of recent ocular surgery/trauma, which could affect corneal sensitivity, e.g., corneal transplantation, LASIK 10. A medical or ocular condition, or a personal situation, which in the principal investigator's opinion, is not appropriate for participation in the trial 11. Current enrollment in another interventional drug or device study or participation in such a study within 30 days of anticipated entry into this study 12. Not capable of providing informed consent

Study Design


Related Conditions & MeSH terms


Intervention

Device:
Prokera Slim
Placement of an Adjunctive Cryopreserved Amniotic Membrane Treatment.
Other:
Standard of Care
Standard of care includes epithelial debridement of all dendrites via Weck-Cel Cellulose sponge, topical prophylactic antibiotics (e.g., Ocuflox QID for one week) and oral acyclovir (400 mg 5x/day for 10 days for primary cases but tapered to 2x/day for 3 months for recurrent cases based on investigator's discretion).

Locations

Country Name City State
United States Casey Eye Institute, Oregon Health & Science University Portland Oregon

Sponsors (2)

Lead Sponsor Collaborator
Oregon Health and Science University Tissue Tech Inc.

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Time-dependent change in BCVA by 1 weeks The BSCVA was recorded at 4 meters by a refractionist certified for the study using a protocol adapted from the Age-Related Eye Disease Study using Early Treatment Diabetic Retinopathy Study charts: chart R(2110), chart 1(2111), and chart 2(2112) (Precision Vision, Woodstock, IL). 1 week
Secondary Proportion of patients with complete epithelialization by 1 week Proportion of patients with complete epithelialization by 1 week, graded 0, SPK 1+, SPK 2+, SPK 3+ (SPK is Superficial Punctate Keratitis) 1 week
Secondary Time-dependent change in BCVA by 2 weeks The BSCVA was recorded at 4 meters by a refractionist certified for the study using a protocol adapted from the Age-Related Eye Disease Study using Early Treatment Diabetic Retinopathy Study charts: chart R(2110), chart 1(2111), and chart 2(2112) (Precision Vision, Woodstock, IL). 2 weeks
Secondary Time-dependent change in BCVA by 2 months The BSCVA was recorded at 4 meters by a refractionist certified for the study using a protocol adapted from the Age-Related Eye Disease Study using Early Treatment Diabetic Retinopathy Study charts: chart R(2110), chart 1(2111), and chart 2(2112) (Precision Vision, Woodstock, IL). 2 months
Secondary Proportion of patients with corneal opacity at 2 months Proportion of patients with corneal opacity at 2 months, graded 0, 1+, 2+, 3+, and 4+. 2 months
Secondary Proportion of patients with recurrence by 2 months Proportion of patients with recurrence by 2 months counted individually 2 months
Secondary Change in corneal sensitivity from baseline to 2 months Change in corneal sensitivity from baseline to 2 months using Cochet-Bonnet esthesiometer, graded 0/4, 1/4, 2/4, 3/4, and 4/4. 2 months
Secondary Change in conjunctival inflammation at 1 week Conjunctival inflammation graded by investigator as none (0), mild (1), moderate (2), and severe (3) 1 week
Secondary Change in conjunctival inflammation at 2 week Conjunctival inflammation graded by investigator as none (0), mild (1), moderate (2), and severe (3) 2 week
Secondary Total number of extra patient visits, treatments, and procedures throughout study Total number of extra patient visits, treatments, and procedures throughout study, counted individually by type 2-3 months