Clinical trial NCT01489189: Prompt Panretinal Photocoagulation Versus Ranibizumab+Deferred Panretinal Photocoagulation for Proliferative Diabetic Retinopathy
Official title: Prompt Panretinal Photocoagulation Versus Intravitreal Ranibizumab With Deferred Panretinal Photocoagulation for Proliferative Diabetic Retinopathy
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE3
Conditions: Proliferative Diabetic Retinopathy
Lead sponsor: Jaeb Center for Health Research
Sponsor class: OTHER
Collaborators: name: National Eye Institute (NEI)
name: Genentech, Inc.
First posted: 2011-12-09
Enrollment: 305
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: The primary objective of the protocol is to determine if visual acuity outcomes at 2 years in eyes with proliferative diabetic retinopathy (PDR) that receive anti-vascular endothelial growth factor (anti-VEGF) therapy with deferred panretinal photocoagulation (PRP) are non-inferior to those in eyes that receive standard prompt PRP therapy.

Secondary objectives include:

* Comparing other visual function outcomes (including Humphrey visual field testing and study participant self-reports of visual function) in eyes receiving anti-VEGF with deferred PRP with those in eyes receiving prompt PRP.
* Determining percent of eyes not requiring PRP when anti-VEGF is given in the absence of prompt PRP.
* Comparing safety outcomes between treatment groups.
* Comparing associated treatment and follow-up exam costs between treatment groups.


Eligibility criteria: Inclusion Criteria:

Age \>= 18 years -Individuals \< 18 years old are not being included because proliferative diabetic retinopathy (PDR) is so rare in this age group that the diagnosis of PDR may be questionable.

Diagnosis of diabetes mellitus (type 1 or type 2)

Any one of the following will be considered to be sufficient evidence that diabetes is present:

* Current regular use of insulin for the treatment of diabetes
* Current regular use of oral anti-hyperglycemia agents for the treatment of diabetes
* Documented diabetes by American Diabetes Association (ADA) and/or World Health Organization (WHO) criteria (see Procedures Manual for definitions) Able and willing to provide informed consent.

Meets at least all of the following ocular criteria criteria:

* Presence of PDR which the investigator intends to manage with PRP alone but for which PRP can be deferred for at least 4 weeks in the setting of intravitreal ranibizumab, in the investigator's judgment.
* Best corrected Electronic-Early Treatment Diabetic Retinopathy Study (E-ETDRS) visual acuity letter score \> 24 (approximate Snellen equivalent 20/320) on the day of randomization.
* Media clarity, pupillary dilation, and study participant cooperation sufficient to administer PRP and obtain adequate fundus photographs and optical coherence tomography (OCT).

  * Investigator must verify accuracy of OCT scan by ensuring it is centered and of adequate quality

Exclusion Criteria:

Significant renal disease, defined as a history of chronic renal failure requiring dialysis or kidney transplant.

A condition that, in the opinion of the investigator, would preclude participation in the study (e.g., unstable medical status including blood pressure, cardiovascular disease, and glycemic control).

* Individuals in poor glycemic control who, within the last 4 months, initiated intensive insulin treatment (a pump or multiple daily injections) or plan to do so in the next 4 months should not be enrolled.

Participation in an investigational trial within 30 days of randomization that involved treatment with any drug that has not received regulatory approval for the indication being studied.

* Study participants cannot receive another investigational drug while participating in the study.

Known allergy to any component of the study drug.

Blood pressure \> 180/110 (systolic above 180 or diastolic above 110).

* If blood pressure is brought below 180/110 by anti-hypertensive treatment, individual can become eligible.

Myocardial infarction, other acute cardiac event requiring hospitalization, stroke, transient ischemic attack, or treatment for acute congestive heart failure within 4 months prior to randomization.

Systemic anti-VEGF or pro-VEGF treatment within 4 months prior to randomization.

* These drugs should not be used during the study.

For women of child-bearing potential: pregnant or lactating or intending to become pregnant within the next 3 years.

* Women who are potential study participants should be questioned about the potential for pregnancy. Investigator judgment is used to determine when a pregnancy test is needed.

Individual is expecting to move out of the area of the clinical center to an area not covered by another Diabetic Retinopathy Clinical Research Network (DRCR.net) certified clinical center during the 3 years of the study.

Individual has any of the following ocular characteristics:

* History of prior panretinal photocoagulation (prior PRP is defined as ≥ 100 burns outside of the posterior pole)
* Tractional retinal detachment involving the macula.

  -- A tractional retinal detachment is not an exclusion if it is outside of the posterior pole (not threatening the macula) and in the investigator's judgment, is not a contraindication to intravitreal ranibizumab treatment and also does not preclude deferring PRP for at least 4 weeks in the setting of intravitreal ranibizumab
* Exam evidence of neovascularization of the angle (neovascularization of the iris alone is not an exclusion if it does not preclude deferring PRP for at least 4 weeks in the investigator's judgment).
* If macular edema is present, it is considered to be primarily due to a cause other than diabetic macular edema.

  -- An eye should not be considered eligible if:
  * macular edema is present that is considered to be related to ocular surgery such as cataract extraction or
  * clinical exam and/or OCT suggest that vitreoretinal interface abnormalities disease (e.g., a taut posterior hyaloid or epiretinal membrane) is the primary cause of any macular edema.
* An ocular condition is present (other than diabetic retinopathy) that, in the opinion of the investigator, might alter visual acuity during the course of the study (e.g., retinal vein or artery occlusion, uveitis or other ocular inflammatory disease, neovascular glaucoma, etc.).

  -- A vitreous or preretinal hemorrhage is not an exclusion if it is out of the visual axis and in the investigator's judgment is not having any affect on visual acuity.
* Substantial cataract that, in the opinion of the investigator, is likely to be decreasing visual acuity by 3 lines or more (i.e., cataract would be reducing acuity to 20/40 or worse if eye were otherwise normal).
* History of intravitreal anti-VEGF treatment at any time in the past 2 months.
* History of corticosteroid treatment (intravitreal or peribulbar) at any time in the past 4 months.

  --If the investigator believes that there may still be a substantial effect 4 months after prior treatment (e.g., dose of intravitreal triamcinolone higher than 4 mg), the eye should not be included.
* History of major ocular surgery (including vitrectomy, cataract extraction, scleral buckle, any intraocular surgery, etc.) within prior 4 months or anticipated within the next 6 months following randomization.
* History of (yttrium-aluminum-garnet) YAG capsulotomy performed within 2 months prior to randomization.
* Aphakia.
* Uncontrolled glaucoma (in investigator's judgment).
* Exam evidence of severe external ocular infection, including conjunctivitis, chalazion, or substantial blepharitis

Primary outcomes:
measure: Mean Change in Visual Acuity From Baseline
timeFrame: 2-years
Secondary outcomes:
measure: Mean Visual Acuity
timeFrame: 2-years
measure: Number of Eyes With Greater Than or Equal to 10 Letter Vision Gain
timeFrame: 2-years
measure: Humphrey Visual Field Test Cumulative Score Change From Baseline
timeFrame: 2-years
measure: Frequency of Vitrectomy
timeFrame: 2-years
measure: Mean Change in OCT Central Subfield Thickness From Baseline
timeFrame: 2-years
measure: Development of Central DME With Vision Impairment by 2-years
timeFrame: 2-years
measure: Number of Eyes With Vitreous Hemorrhage
timeFrame: 2-years
measure: Number of Eyes Without Active or Regressed Neovascularization on Fundus Photography at 2-years
timeFrame: 2-years
measure: Number of Eyes With Greater Than or Equal to 10 Letter Vision Loss
timeFrame: 2-year
Other outcomes:
Locations:
city: Phoenix
country: United States
facility: Retinal Consultants of AZ
state: Arizona
city: Loma Linda
country: United States
facility: Loma Linda University Health Care, Dept. of Ophthalmology
state: California
city: Palm Springs
country: United States
facility: Southern California Desert Retina Consultants, MC
state: California
city: Santa Barbara
country: United States
facility: California Retina Consultants
state: California
city: Walnut Creek
country: United States
facility: Bay Area Retina Associates
state: California
city: Trumbull
country: United States
facility: New England Retina Associates
state: Connecticut
city: Fort Myers
country: United States
facility: Retina Consultants of Southwest Florida
state: Florida
city: Lakeland
country: United States
facility: Central Florida Retina Institute
state: Florida
city: Ocala
country: United States
facility: Ocala Eye Retina Consultants
state: Florida
city: Plantation
country: United States
facility: Fort Lauderdale Eye Institute
state: Florida
city: Venice
country: United States
facility: Retina Associates of Sarasota
state: Florida
city: Augusta
country: United States
facility: Southeast Retina Center, P.C.
state: Georgia
city: Glenview
country: United States
facility: North Shore University Health System
state: Illinois
city: Indianapolis
country: United States
facility: Raj K. Maturi, M.D., P.C.
state: Indiana
city: New Albany
country: United States
facility: John-Kenyon American Eye Institute
state: Indiana
city: West Des Moines
country: United States
facility: Wolfe Eye Clinic
state: Iowa
city: Lexington
country: United States
facility: Retina and Vitreous Associates of Kentucky
state: Kentucky
city: Paducah
country: United States
facility: Paducah Retinal Center
state: Kentucky
city: Baltimore
country: United States
facility: Elman Retina Group, P.A.
state: Maryland
city: Worcester
country: United States
facility: Vitreo-Retinal Associates, PC
state: Massachusetts
city: Grand Blanc
country: United States
facility: Retina Vitrous Center
state: Michigan
city: Saint Louis
country: United States
facility: Barnes Retina Institute
state: Missouri
city: Lincoln
country: United States
facility: Eye Surgical Associates
state: Nebraska
city: New York
country: United States
facility: The New York Eye and Ear Infirmary/Faculty Eye Practice
state: New York
city: Rochester
country: United States
facility: University of Rochester
state: New York
city: Syracuse
country: United States
facility: Retina-Vitreous Surgeons of Central New York, PC
state: New York
city: Chapel Hill
country: United States
facility: University of North Carolina
state: North Carolina
city: Charlotte
country: United States
facility: Charlotte Eye, Ear, Nose and Throat Assoc., PA
state: North Carolina
city: Beachwood
country: United States
facility: Retina Associates of Cleveland, Inc.
state: Ohio
city: Portland
country: United States
facility: Retina Northwest, PC
state: Oregon
city: Portland
country: United States
facility: Casey Eye Institute
state: Oregon
city: Hershey
country: United States
facility: Penn State College of Medicine
state: Pennsylvania
city: Lancaster
country: United States
facility: Family Eye Group
state: Pennsylvania
city: Pittsburgh
country: United States
facility: Retina Vitrous Consultants
state: Pennsylvania
city: Columbia
country: United States
facility: Carolina Retina Center
state: South Carolina
city: Kingsport
country: United States
facility: Southeastern Retina Associates, PC
state: Tennessee
city: Knoxville
country: United States
facility: Southeastern Retina Associates, P.C.
state: Tennessee
city: Austin
country: United States
facility: Austin Retina Associates
state: Texas
city: Austin
country: United States
facility: Retina Research Center
state: Texas
city: Dallas
country: United States
facility: Texas Retina Associates
state: Texas
city: Houston
country: United States
facility: Retina and Vitreous of Texas
state: Texas
city: Houston
country: United States
facility: Baylor Eye Physicians and Surgeons
state: Texas
city: Lubbock
country: United States
facility: Texas Retina Associates
state: Texas
city: McAllen
country: United States
facility: Valley Retina Institute
state: Texas
city: San Antonio
country: United States
facility: Retinal Consultants of San Antonio
state: Texas
city: Seattle
country: United States
facility: University of Washington Medical Center
state: Washington
city: Spokane
country: United States
facility: Spokane Eye Clinic
state: Washington
city: Milwaukee
country: United States
facility: Medical College of Wiconsin
state: Wisconsin
Study officials:
affiliation: Carolina Retina Center
name: Jeffrey G Gross, MD
role: STUDY_CHAIR
References:
citation: Gross JG, Glassman AR. A Novel Treatment for Proliferative Diabetic Retinopathy: Anti-Vascular Endothelial Growth Factor Therapy. JAMA Ophthalmol. 2016 Jan;134(1):13-4. doi: 10.1001/jamaophthalmol.2015.5079. No abstract available.
citation: Gross JG, Glassman AR. Panretinal Photocoagulation vs Anti-Vascular Endothelial Growth Factor for Proliferative Diabetic Retinopathy-Reply. JAMA Ophthalmol. 2016 Jun 1;134(6):716. doi: 10.1001/jamaophthalmol.2016.0703. No abstract available.
citation: Beaulieu WT, Bressler NM, Melia M, Owsley C, Mein CE, Gross JG, Jampol LM, Glassman AR; Diabetic Retinopathy Clinical Research Network. Panretinal Photocoagulation Versus Ranibizumab for Proliferative Diabetic Retinopathy: Patient-Centered Outcomes From a Randomized Clinical Trial. Am J Ophthalmol. 2016 Oct;170:206-213. doi: 10.1016/j.ajo.2016.08.008. Epub 2016 Aug 12.
citation: Bressler SB, Beaulieu WT, Glassman AR, Gross JG, Jampol LM, Melia M, Peters MA, Rauser ME; Diabetic Retinopathy Clinical Research Network. Factors Associated with Worsening Proliferative Diabetic Retinopathy in Eyes Treated with Panretinal Photocoagulation or Ranibizumab. Ophthalmology. 2017 Apr;124(4):431-439. doi: 10.1016/j.ophtha.2016.12.005. Epub 2017 Feb 1.
citation: Hutton DW, Stein JD, Bressler NM, Jampol LM, Browning D, Glassman AR; Diabetic Retinopathy Clinical Research Network. Cost-effectiveness of Intravitreous Ranibizumab Compared With Panretinal Photocoagulation for Proliferative Diabetic Retinopathy: Secondary Analysis From a Diabetic Retinopathy Clinical Research Network Randomized Clinical Trial. JAMA Ophthalmol. 2017 Jun 1;135(6):576-584. doi: 10.1001/jamaophthalmol.2017.0837.
citation: Gross JG, Glassman AR, Klein MJ, Jampol LM, Ferris FL 3rd, Bressler NM, Beck RW. Interim Safety Data Comparing Ranibizumab With Panretinal Photocoagulation Among Participants With Proliferative Diabetic Retinopathy. JAMA Ophthalmol. 2017 Jun 1;135(6):672-673. doi: 10.1001/jamaophthalmol.2017.0969.
citation: Jampol LM, Odia I, Glassman AR, Baker CW, Bhorade AM, Han DP, Jaffe GJ, Melia M, Bressler NM, Tanna AP; Diabetic Retinopathy Clinical Research Network. PANRETINAL PHOTOCOAGULATION VERSUS RANIBIZUMAB FOR PROLIFERATIVE DIABETIC RETINOPATHY: Comparison of Peripapillary Retinal Nerve Fiber Layer Thickness in a Randomized Clinical Trial. Retina. 2019 Jan;39(1):69-78. doi: 10.1097/IAE.0000000000001909.
citation: Bressler SB, Beaulieu WT, Glassman AR, Gross JG, Melia M, Chen E, Pavlica MR, Jampol LM; Diabetic Retinopathy Clinical Research Network. Panretinal Photocoagulation Versus Ranibizumab for Proliferative Diabetic Retinopathy: Factors Associated with Vision and Edema Outcomes. Ophthalmology. 2018 Nov;125(11):1776-1783. doi: 10.1016/j.ophtha.2018.04.039. Epub 2018 Jul 3.
citation: Gross JG, Glassman AR, Liu D, Sun JK, Antoszyk AN, Baker CW, Bressler NM, Elman MJ, Ferris FL 3rd, Gardner TW, Jampol LM, Martin DF, Melia M, Stockdale CR, Beck RW; Diabetic Retinopathy Clinical Research Network. Five-Year Outcomes of Panretinal Photocoagulation vs Intravitreous Ranibizumab for Proliferative Diabetic Retinopathy: A Randomized Clinical Trial. JAMA Ophthalmol. 2018 Oct 1;136(10):1138-1148. doi: 10.1001/jamaophthalmol.2018.3255.
citation: Sun JK, Glassman AR, Beaulieu WT, Stockdale CR, Bressler NM, Flaxel C, Gross JG, Shami M, Jampol LM; Diabetic Retinopathy Clinical Research Network. Rationale and Application of the Protocol S Anti-Vascular Endothelial Growth Factor Algorithm for Proliferative Diabetic Retinopathy. Ophthalmology. 2019 Jan;126(1):87-95. doi: 10.1016/j.ophtha.2018.08.001. Epub 2018 Aug 7.
citation: Bressler SB, Beaulieu WT, Glassman AR, Gross JG, Melia M, Chen E, Pavlica MR, Jampol LM; Diabetic Retinopathy Clinical Research Network. PHOTOCOAGULATION VERSUS RANIBIZUMAB FOR PROLIFERATIVE DIABETIC RETINOPATHY: Should Baseline Characteristics Affect Choice of Treatment? Retina. 2019 Sep;39(9):1646-1654. doi: 10.1097/IAE.0000000000002377.
citation: Glassman AR, Beaulieu WT, Stockdale CR, Beck RW, Bressler NM, Labriola LT, Melia M, Oliver K, Sun JK. Effect of telephone calls from a centralized coordinating center on participant retention in a randomized clinical trial. Clin Trials. 2020 Apr;17(2):195-201. doi: 10.1177/1740774519894229. Epub 2020 Jan 27.
citation: Maguire MG, Liu D, Glassman AR, Jampol LM, Johnson CA, Baker CW, Bressler NM, Gardner TW, Pieramici D, Stockdale CR, Sun JK; DRCR Retina Network. Visual Field Changes Over 5 Years in Patients Treated With Panretinal Photocoagulation or Ranibizumab for Proliferative Diabetic Retinopathy. JAMA Ophthalmol. 2020 Mar 1;138(3):285-293. doi: 10.1001/jamaophthalmol.2019.5939.
citation: Hutton DW, Stein JD, Glassman AR, Bressler NM, Jampol LM, Sun JK; DRCR Retina Network. Five-Year Cost-effectiveness of Intravitreous Ranibizumab Therapy vs Panretinal Photocoagulation for Treating Proliferative Diabetic Retinopathy: A Secondary Analysis of a Randomized Clinical Trial. JAMA Ophthalmol. 2019 Dec 1;137(12):1424-1432. doi: 10.1001/jamaophthalmol.2019.4284.
citation: Writing Committee for the Diabetic Retinopathy Clinical Research Network; Gross JG, Glassman AR, Jampol LM, Inusah S, Aiello LP, Antoszyk AN, Baker CW, Berger BB, Bressler NM, Browning D, Elman MJ, Ferris FL 3rd, Friedman SM, Marcus DM, Melia M, Stockdale CR, Sun JK, Beck RW. Panretinal Photocoagulation vs Intravitreous Ranibizumab for Proliferative Diabetic Retinopathy: A Randomized Clinical Trial. JAMA. 2015 Nov 24;314(20):2137-2146. doi: 10.1001/jama.2015.15217.
citation: Maguire MG, Liu D, Bressler SB, Friedman SM, Melia M, Stockdale CR, Glassman AR, Sun JK; DRCR Retina Network. Lapses in Care Among Patients Assigned to Ranibizumab for Proliferative Diabetic Retinopathy: A Post Hoc Analysis of a Randomized Clinical Trial. JAMA Ophthalmol. 2021 Dec 1;139(12):1266-1273. doi: 10.1001/jamaophthalmol.2021.4103.