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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03677869
Other study ID # DRCR.net Protocol AH
Secondary ID U10EY014231
Status Completed
Phase N/A
First received
Last updated
Start date November 14, 2018
Est. completion date July 22, 2020

Study information

Verified date September 2022
Source Jaeb Center for Health Research
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Eyes with vitreomacular traction (VMT) and full-thickness macular holes (MH) will be enrolled into a non-randomized cohort treated with pneumatic vitreolysis (PVL) to determine the proportion with VMT release and MH closure and to assess factors associated with success.


Description:

The objective of this trial is to obtain estimates of the proportion of eyes with MH closure of the inner retinal layers for eyes with VMT and full-thickness MHs treated with PVL. Understanding the rates of VMT release and MH closures in eyes with full-thickness MH treated with PVL is of interest. Surgery would result in nearly 100% hole closure and VMT release, making vitrectomy a poor control group choice. Spontaneous resolution of MH is highly unlikely, making an observation arm unnecessary. Therefore, these eyes will be enrolled into a non-randomized cohort treated with PVL to assess the outcomes of treatment.


Recruitment information / eligibility

Status Completed
Enrollment 36
Est. completion date July 22, 2020
Est. primary completion date March 16, 2020
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Participant-Level Criteria Inclusion To be eligible, the following inclusion criteria must be met: 1. Age = 18 years • Participants < 18 years old are not being included because the condition is so rare in this age group that the diagnosis may be questionable. 2. At least one eye meets the study eye criteria 3. Able and willing to provide informed consent 4. Able and willing to avoid high altitude travel, including airline travel, until gas resolution (approximately 6 to 8 weeks) 5. For phakic patients, able and willing to avoid supine position until gas resolution (approximately 6 to 8 weeks) 6. Able and willing to position face down for at least 50% of the time for at least 4 days post-injection (to facilitate macular hole closure) 7. Able and willing to wear wristband that informs any medical personnel that the patient has a gas bubble in the eye Exclusion A potential participant is not eligible if any of the following exclusion criteria are present: 8. A condition that, in the opinion of the investigator, would preclude participation in the study (e.g., unstable medical status that might preclude completion of follow up) 9. Participation in an investigational trial within 30 days of enrollment that involves treatment with any drug or device that has not received regulatory approval for the indication being studied at the time of study entry - Note: study participants should not receive another investigational drug or device while participating in the study 10. Known contraindication to any component of the treatment 11. Known allergy to any drug used in the procedure prep (including povidone iodine) 12. Potential participant is expecting to move out of the area of the clinical center to an area not covered by another clinical center during the 6 months following enrollment 13. Anticipated surgery requiring anesthesia within the 6 months following enrollment - Participants cannot receive nitrous oxide until gas resolution 13. For women of child-bearing potential: pregnant at the time of enrollment - Women who are potential study participants should be questioned about the potential for pregnancy. Investigator judgement may be used to determine when a pregnancy test is needed Study Eye Criteria The participant must have at least one eye meeting all of the inclusion criteria and none of the exclusion criteria listed below. A participant can have only one study eye. If both eyes are eligible at the time of enrollment, the study eye will be selected by the investigator and participant before injection. The eligibility criteria for a study eye are as follows: Inclusion 1. Full-thickness macular hole that is = 250 microns at the narrowest point, confirmed by central reading center 2. Vitreomacular adhesion on OCT that is no larger than 3000 microns with visible separation of the vitreous on either side as seen on horizontal and vertical scans , confirmed by central reading center • Presence of epiretinal membrane is neither a requirement nor exclusion 3. Visual acuity letter score of at least 19 (approximate Snellen equivalent 20/400 or better) and at most 83 (20/25 or worse) Exclusion 4. Other ocular condition that might affect visual acuity during the course of the study or require intraocular treatment (e.g., retinal vein occlusion, substantial age-related macular degeneration, or macular edema induced by a condition other than VMT) - If diabetic retinopathy is present, severity level must be microaneurysms only or better (= diabetic retinopathy severity level 20). - Presence of drusen is acceptable; however, eyes with geographic atrophy or neovascular age-related macular degeneration involving the macula are excluded. 5. High level of myopia (spherical equivalent of -8.00 diopters or more myopic if phakic, or retinal abnormalities consistent with pathologic myopia if phakic or pseudophakic) 6. History of prior gas injection, ocriplasmin injection, or intraocular injection for any reason 7. History of prior vitrectomy 8. History of uncontrolled glaucoma • Intraocular pressure must be < 30 mmHg, with no more than one topical glaucoma medication, and no documented glaucomatous field loss for the eye to be eligible 9. History of major ocular surgery (including cataract extraction, scleral buckle, any intraocular surgery, etc.) within prior 4 months or major ocular surgery anticipated within the next 6 months following enrollment 10. History of YAG capsulotomy performed within 4 months prior to enrollment 11. Aphakia or anterior chamber intraocular lens 12. Exam evidence of severe external ocular infection, including conjunctivitis, chalazion, or substantial blepharitis 13. Uveitis 14. Retinal history or pathology that might predispose an eye to an increased risk of retinal detachment from the procedure • Untreated retinal tears, not retinal holes, are an exclusion. It is up to the investigator to determine whether extent of lattice degeneration or other pathology might increase the risk of retinal detachment 15. Any contraindication to paracentesis (e.g., history of narrow angle glaucoma) 16. Lenticular or zonular instability

Study Design


Related Conditions & MeSH terms


Intervention

Device:
Intraocular gas (C3F8)
Intraocular gas (C3F8) injection

Locations

Country Name City State
United States Western Carolina Clinical Research, LLC Asheville North Carolina
United States Southeast Retina Center, PC Augusta Georgia
United States Austin Retina Associates Austin Texas
United States Retina Research Center Austin Texas
United States Valley Eye Physicians and Surgeons Ayer Massachusetts
United States Elman Retina Group, BA Baltimore Maryland
United States Retina Associates of Cleveland, Inc. Beachwood Ohio
United States Gailey Eye Clinic Bloomington Illinois
United States Joslin Diabetes Center Boston Massachusetts
United States Retinal Diagnostic Center Campbell California
United States Charlotte Eye, Ear, Nose, and Throat Assoc., PA Charlotte North Carolina
United States Southeastern Retina Associates Chattanooga Tennessee
United States University of Illinois at Chicago Medical Center Chicago Illinois
United States Retina Vitreous Center Edmond Oklahoma
United States Oregon Retina, LLP Eugene Oregon
United States National Ophthalmic Research Institute Fort Myers Florida
United States Retina Specialists of Michigan Grand Rapids Michigan
United States Atlantis Eye Care Huntington Beach California
United States Raj K. Maturi, MD, PC Indianapolis Indiana
United States University of Florida College of Med., Dept of Ophthalmology, Jacksonville Hlth Sci Ctr Jacksonville Florida
United States Southeastern Retina Associates, PC Knoxville Tennessee
United States Florida Retina Consultants Lakeland Florida
United States Northern California Retina Vitreous Associates Mountain View California
United States MaculaCare New York New York
United States Illinois Retina Associates, SC Oak Park Illinois
United States East Bay Retina Consultants, Inc. Oakland California
United States Florida Retina Institute Orlando Florida
United States Mid-America Retina Consultants, P.A. Overland Park Kansas
United States Paducah Retinal Center Paducah Kentucky
United States Southern California Desert Retina Consultants, MC Palm Desert California
United States Southeast Eye Institute, PA dba Eye Associates of Pinellas Pinellas Park Florida
United States Retina Northwest, PC Portland Oregon
United States Mayo Clinic Department of Ophthalmology Rochester Minnesota
United States The Retina Institute Saint Louis Missouri
United States Medical Center Ophthalmology Associates San Antonio Texas
United States Retinal Consultants of San Antonio San Antonio Texas
United States Thomas Eye Group Sandy Springs Georgia
United States Retina Associates of Sarasota Sarasota Florida
United States Sarasota Retina Institute Sarasota Florida
United States Spokane Eye Clinic Spokane Washington
United States Retina-Vitreous Surgeons of Central New York, PC Syracuse New York
United States Carle Foundation Hospital Urbana Illinois
United States Wolfe Eye Clinic West Des Moines Iowa
United States Eye Associates of Northeast Louisiana dba Haik Humble Eye Center West Monroe Louisiana
United States Vitreo-Retinal Associates, PC Worcester Massachusetts

Sponsors (3)

Lead Sponsor Collaborator
Jaeb Center for Health Research National Eye Institute (NEI), National Institutes of Health (NIH)

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Proportion of Eyes With Macular Hole Closure of Inner Retinal Layers Without Rescue Vitrectomy at 8 weeks
Secondary Mean Change in E-ETDRS Visual Acuity Letter Score From Baseline Best-corrected visual acuity following protocol-defined refraction. Visual Acuity was measured with the Electronic Early Treatment Diabetic Retinopathy Study (E-ETDRS) visual acuity test on a scale from 100 letters (Snellen equivalent of 20/10) to 0 letters (Snellen equivalent <20/800). Higher scores indicate better visual acuity and lower scores indicate worse visual acuity. Baseline to 8 weeks
Secondary E-ETDRS Visual Acuity Letter Score Best-corrected visual acuity following protocol-defined refraction. Visual Acuity was measured with the Electronic Early Treatment Diabetic Retinopathy Study (E-ETDRS) visual acuity test on a scale from 100 letters (Snellen equivalent of 20/10) to 0 letters (Snellen equivalent <20/800). Higher scores indicate better visual acuity and lower scores indicate worse visual acuity. 8 weeks
Secondary Number of Eyes With Rescue Treatment Before the 8-week Visit up to 8 Weeks
Secondary Macular Hole Closure Without Rescue Vitrectomy 8 Weeks
Secondary Macular Hole Closure With Rescue Vitrectomy 8 weeks
Secondary No Macular Hole Closure and no Rescue Vitrectomy 8 weeks
Secondary No Macular Hole Closure Despite Rescue Vitrectomy 8 weeks