NCT00000160

Brief Summary

To determine whether photocoagulation helps prevent severe visual loss from proliferative diabetic retinopathy. To determine whether a difference exists in the efficacy and safety of argon versus xenon photocoagulation for proliferative diabetic retinopathy.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Status
completed

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Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 1972

Completed
27.7 years until next milestone

First Submitted

Initial submission to the registry

September 23, 1999

Completed
1 day until next milestone

First Posted

Study publicly available on registry

September 24, 1999

Completed
Last Updated

June 2, 2006

Status Verified

October 1, 2003

First QC Date

September 23, 1999

Last Update Submit

June 1, 2006

Conditions

Keywords

Vision Loss

Interventions

Eligibility Criteria

AgeUp to 70 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Patients were eligible if they had best corrected visual acuity of 20/100 or better in each eye and the presence of proliferative diabetic retinopathy in at least one eye or severe nonproliferative retinopathy in both eyes. They could not have had prior treatment with photocoagulation or pituitary ablation, and both eyes had to be suitable for photocoagulation. All eligible patients were younger than 70 years, and the examining physician assessed the outlook for survival and availability for 5 years of followup to be good.

Contact the study team to discuss eligibility requirements. They can help determine if this study is right for you.

Sponsors & Collaborators

Related Publications (13)

  • Diabetic retinopathy study. Report Number 6. Design, methods, and baseline results. Report Number 7. A modification of the Airlie House classification of diabetic retinopathy. Prepared by the Diabetic Retinopathy. Invest Ophthalmol Vis Sci. 1981 Jul;21(1 Pt 2):1-226. No abstract available.

    PMID: 7195893BACKGROUND
  • Four risk factors for severe visual loss in diabetic retinopathy. The third report from the Diabetic Retinopathy Study. The Diabetic Retinopathy Study Research Group. Arch Ophthalmol. 1979 Apr;97(4):654-5. doi: 10.1001/archopht.1979.01020010310003.

    PMID: 426679BACKGROUND
  • The Diabetic Retinopathy Study Research Group; Photocoagulation treatment of proliferative diabetic retinopathy: A short report of long range results., Diabetic Retinopathy Study (DRS) Report Number 4. Proceedings of the 10th Congress of the International Diabetes Federation 1979

    BACKGROUND
  • Photocoagulation treatment of proliferative diabetic retinopathy: relationship of adverse treatment effects to retinopathy severity. Diabetic retinopathy study report no. 5. Dev Ophthalmol. 1981;2:248-61.

    PMID: 7262408BACKGROUND
  • Photocoagulation treatment of proliferative diabetic retinopathy. Clinical application of Diabetic Retinopathy Study (DRS) findings, DRS Report Number 8. The Diabetic Retinopathy Study Research Group. Ophthalmology. 1981 Jul;88(7):583-600.

    PMID: 7196564BACKGROUND
  • Ederer F, Podgor MJ. Assessing possible late treatment effects in stopping a clinical trial early: a case study. Diabetic Retinopathy Study report No. 9. Control Clin Trials. 1984 Dec;5(4):373-81. doi: 10.1016/s0197-2456(84)80016-1.

    PMID: 6394209BACKGROUND
  • Rand LI, Prud'homme GJ, Ederer F, Canner PL. Factors influencing the development of visual loss in advanced diabetic retinopathy. Diabetic Retinopathy Study (DRS) Report No. 10. Invest Ophthalmol Vis Sci. 1985 Jul;26(7):983-91.

    PMID: 2409053BACKGROUND
  • Preliminary report on effects of photocoagulation therapy. The Diabetic Retinopathy Study Research Group. Am J Ophthalmol. 1976 Apr;81(4):383-96. doi: 10.1016/0002-9394(76)90292-0.

    PMID: 944535BACKGROUND
  • Ferris FL 3rd, Podgor MJ, Davis MD. Macular edema in Diabetic Retinopathy Study patients. Diabetic Retinopathy Study Report Number 12. Ophthalmology. 1987 Jul;94(7):754-60. doi: 10.1016/s0161-6420(87)33526-2.

    PMID: 3658347BACKGROUND
  • Kaufman SC, Ferris FL 3rd, Swartz M. Intraocular pressure following panretinal photocoagulation for diabetic retinopathy. Diabetic Retinopathy Report No. 11. Arch Ophthalmol. 1987 Jun;105(6):807-9. doi: 10.1001/archopht.1987.01060060093040.

    PMID: 3555429BACKGROUND
  • Kaufman SC, Ferris FL 3rd, Seigel DG, Davis MD, DeMets DL. Factors associated with visual outcome after photocoagulation for diabetic retinopathy. Diabetic Retinopathy Study Report #13. Invest Ophthalmol Vis Sci. 1989 Jan;30(1):23-8.

    PMID: 2912911BACKGROUND
  • Indications for photocoagulation treatment of diabetic retinopathy: Diabetic Retinopathy Study Report no. 14. The Diabetic Retinopathy Study Research Group. Int Ophthalmol Clin. 1987 Winter;27(4):239-53. doi: 10.1097/00004397-198702740-00004. No abstract available.

    PMID: 2447027BACKGROUND
  • Photocoagulation treatment of proliferative diabetic retinopathy: the second report of diabetic retinopathy study findings. Ophthalmology. 1978 Jan;85(1):82-106. doi: 10.1016/s0161-6420(78)35693-1.

    PMID: 345173BACKGROUND

MeSH Terms

Conditions

Diabetic RetinopathyBlindnessVision Disorders

Interventions

Light Coagulation

Condition Hierarchy (Ancestors)

Retinal DiseasesEye DiseasesDiabetic AngiopathiesVascular DiseasesCardiovascular DiseasesDiabetes ComplicationsDiabetes MellitusEndocrine System DiseasesSensation DisordersNeurologic ManifestationsNervous System DiseasesSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Hemostatic TechniquesTherapeuticsHemostasis, SurgicalSurgical Procedures, OperativeOphthalmologic Surgical Procedures

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Purpose
TREATMENT
Sponsor Type
NIH

Study Record Dates

First Submitted

September 23, 1999

First Posted

September 24, 1999

Study Start

January 1, 1972

Last Updated

June 2, 2006

Record last verified: 2003-10