A safety and efficacy assessment of chimeric ribozyme to proliferating cell nuclear antigen to prevent recurrence of proliferative vitreoretinopathy

ISRCTN ISRCTN25825250
DOI https://doi.org/10.1186/ISRCTN25825250
Secondary identifying numbers IM-VIT 100-01 (IND # 63,756)
Submission date
23/08/2006
Registration date
13/09/2006
Last edited
19/02/2008
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Eye Diseases
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Not provided at time of registration

Study website

Contact information

Dr William Schiff
Scientific

635 West 165th Street
New York
10032
United States of America

Phone +1 212 305 5922
Email wms13@columbia.edu

Study information

Study designMulticentre, double-masked, placebo controlled, randomised clinical trial.
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typePrevention
Scientific title
Study acronymIM-VIT100
Study objectivesTo determine the safety and efficacy of VIT100 (VitrenAse), a proliferating cell nuclear antigen (PCNA) ribozyme (Immusol, Inc. San Diego, CA), in preventing recurrent proliferative vitreoretinopathy (PVR) in patients with established PVR who undergo vitrectomy for retinal reattachment repair.
Ethics approval(s)Columbia University Institutional Review Board reviewed and approved research on the 31st July 2003 (reference number: AAA8110).
Health condition(s) or problem(s) studiedProliferative Vitreoretinopathy
InterventionAll patients undergo retinal reattachment surgery with pars plana vitrectomy. Additional intraoperative procedures including scleral buckle placement or revision, pars plana lensectomy or limbal cataract extraction, Intraocular Lens (IOL) implantation or removal, temporary keratoprosthesis and penetrating keratoplasty, retinotomy, and/or gas or silicone oil tamponade could be performed at the discretion of the operating surgeon and required the assistance of an anterior segment specialist in certain cases.

All patients were to be randomly assigned to one of the three treatment groups: 0.75 mg or 0.15 mg VitrenAse and placebo (ratio 1:1:1). A single intravenous administration of VitrenAse or placebo was administered after the completion of the vitrectomy procedure.
Intervention typeDrug
Pharmaceutical study type(s)
PhaseNot Specified
Drug / device / biological / vaccine name(s)VitrenAse (VIT100)
Primary outcome measureEfficacy variables included:
1. Failure rate of retina repair surgery secondary to PVR
2. All cause of failure rate of retina repair surgery
3. Retinal status
Secondary outcome measuresSafety variables included:
1. ETDRS best corrected visual acuity
2. Lens status
3. Intraocular pressure
4. Biomicroscopy findings
5. Adverse effects
6. Serum Blood Urea Nitrogen (BUN) and creatinine
Overall study start date01/07/2002
Completion date31/08/2004

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participants170
Key inclusion criteriaPatients with retinal detachment with Grade C or worse PVR who undergo vitrectomy for retinal reattachment:
1. Retinal detachment
2. Proliferative vitreoretinopathy (PVR) grade C or worse under direct visualisation
3. Visual acuity greater than no light perception
4. Aged at least 18 years
5. Patient willing and able to sign informed consent
Key exclusion criteria1. Vision of no light perception
2. Presence of any uncontrolled, sight threatening concomitant eye disease
3. Severe non proliferative diabetic retinopathy or proliferative diabetic retinopathy according to Early Treatment Diabetic Retinopathy Study (ETDRS) criteria
4. Other pre-existing vaso-proliferative retinopathy
5. History of intraocular inflammatory disease
6. Retinoschisis detachment
7. Heredity vitreoretinopathies
8. Best corrected visual acuity less than 20/200 prior to onset of retinal detachment due to permanent pre-existing condition
9. Vision less than 5/200 or visual field less than 20 degrees in the fellow eye
10. Pregnant or nursing women or women of childbearing potential not using a reliable form of contraception
11. Concurrent participation in any other research study within 30 days of entry into the study
Date of first enrolment01/07/2002
Date of final enrolment31/08/2004

Locations

Countries of recruitment

  • United States of America

Study participating centre

635 West 165th Street
New York
10032
United States of America

Sponsor information

Immusol, Inc. (USA)
Industry

10790 Roselle Street
San Diego, CA
92121
United States of America

Phone +1 858 824 1100
Email bsimon@immusol.com
Website http://www.immusol.com
ROR logo "ROR" https://ror.org/03q43d318

Funders

Funder type

Industry

Immusol, Inc. (USA)

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article Results 01/09/2007 Yes No