Immediate Postoperative Bevacizumab Administration in Proliferative Diabetic Retinopathy Patients Undergoing Vitrectomy

NCT06899529 — Not applicable, Recruiting, 150 participants, Christian Ophthalmic Surgery Expedition Network

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RegistryNCT06899529, acronym Postop IVA
StatusRecruiting
PhaseNot applicable
Study typeInterventional; randomized, parallel, masking: double, treatment
Enrollment150 (Estimated)
SponsorChristian Ophthalmic Surgery Expedition Network (Other)
ConditionsProliferative Diabetic Retinopathy - High Risk
InterventionsBevacizumab (Procedure)
Datesstart 2025-03-20, primary completion 2027-03-20 (estimated), completion 2027-05-20 (estimated), first posted 2025-03-28, last updated 2025-03-28
Locations1 site in Mexico

Related Papers Related Patents Related Grants Related Experts
All trials for Proliferative Diabetic Retinopathy - High Risk All trials of Bevacizumab

-Summary

Patients undergoing surgery for complications related to diabetes will be recruited.

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+Detailed description

Proliferative Diabetic Retinopathy patients undergoing pars plana vitrectomy will be randomized whether or not to receive intravitreal bevacizumab at the conclusion of the operation.

+Arms and interventions

ArmTypeInterventionsDescription
Treatment GroupActive comparatorProcedure: BevacizumabReceives postoperative bevacizumab
Control GroupNo interventionDoes NOT receive postoperative bevacizumab
  • Bevacizumab (Procedure): Bevacizumab will be given immediately after surgery in the Treatment Group

+Outcome measures

Primary outcomes

  • Primary Outcome [6 months]: Postoperative vitreous hemorrhage rate

+Eligibility

Sex: All, ages: 18 Years to any

Inclusion Criteria:

1. Subject age is > 18
2. Subject consents to study participation and is capable of 6 months of follow-up.
3. The subject has type I or II Diabetes Mellitus with active PDR in the study eye.
4. Best-corrected spectacle visual acuity (BCSVA) on the Snellen eye chart ranges from 20/40 to Hand Motions in the study eye.
5. The subject is determined to need a PPV because of reduced BCSVA principally from a non-clearing vitreous hemorrhage, TRD, fibrous proliferation, or a combination of the three. When non-clearing vitreous hemorrhage is the principal reason for PPV, the hemorrhage must have been present by subjective history for at least 3 months. When TRD is the principal reason for PPV, the TRD must be threatening (within one disc diameter) or involving the fovea. When fibrovascular proliferation is the principal reason for PPV, it must be extensive (>3 clock hours) and threatening (within one disc diameter) or involving the fovea.
6. Only one eye per patient is eligible for the study.

Exclusion Criteria:

1. Subject is known to have a significant retinal/optic nerve disease otherwise unrelated to Diabetes Mellitus, which in the opinion of the examiner is responsible for two or more lines of reduced BCSVA (macular degeneration, optic neuritis, glaucoma, amblyopia, etc.) in the study eye.
2. Subject has a significant corneal opacity, which in the opinion of the examiner, is responsible for two or more lines of reduced BCSVA (corneal scar, ectasia, etc.) in the study eye.
3. Subject has had a previous vitrectomy (anterior or PPV) in the study eye.
4. Subject has uncontrolled neovascular glaucoma (intraocular pressure > 30 mmHg despite medical/surgical treatment) in the study eye.
5. Subject has uncontrolled hypertension (systolic > 200 mmHg or diastolic > 120 mmHg) despite adherence to a multiple anti-hypertensive medication regimen.

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+Locations (1)

FacilityCityCountryStatus
Sky VisionQuerétaro City, QuerétaroMexicoRecruiting

+Publications

  • Results publication: Aleman I, Castillo Velazquez J, Rush SW, Rush RB. Ziv-aflibercept versus bevacizumab administration prior to diabetic vitrectomy: a randomised and controlled trial. Br J Ophthalmol. 2019 Dec;103(12):1740-1746. doi: 10.1136/bjophthalmol-2018-313313. Epub 2019 Jan 31. PMID 30705040
  • Results publication: Castillo Velazquez J, Aleman I, Rush SW, Rush RB. Bevacizumab before Diabetic Vitrectomy: A Clinical Trial Assessing 3 Dosing Amounts. Ophthalmol Retina. 2018 Oct;2(10):1010-1020. doi: 10.1016/j.oret.2018.04.014. Epub 2018 Oct 3. PMID 31047488
  • Results publication: Castillo J, Aleman I, Rush SW, Rush RB. Preoperative Bevacizumab Administration in Proliferative Diabetic Retinopathy Patients Undergoing Vitrectomy: A Randomized and Controlled Trial Comparing Interval Variation. Am J Ophthalmol. 2017 Nov;183:1-10. doi: 10.1016/j.ajo.2017.08.013. Epub 2017 Aug 30. PMID 28860046

+Investigators

  • Isaac Aleman, MD, Principal investigator, Christian Ophthalmic Surgery Expedition Network