NCT02590094

Brief Summary

To compare outcomes in subjects receiving different doses and treatment intervals of intravitreal bevacizumab or ziv-aflibercept preoperatively administered prior to undergoing vitrectomy for complications of proliferative diabetic retinopathy.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
568

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Oct 2015

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2015

Completed
26 days until next milestone

First Submitted

Initial submission to the registry

October 27, 2015

Completed
1 day until next milestone

First Posted

Study publicly available on registry

October 28, 2015

Completed
3.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 4, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 4, 2019

Completed
Last Updated

December 3, 2021

Status Verified

November 1, 2021

Enrollment Period

3.3 years

First QC Date

October 27, 2015

Last Update Submit

November 20, 2021

Conditions

Outcome Measures

Primary Outcomes (1)

  • Visual Acuity

    Change in BCSVA from baseline

    6 months

Secondary Outcomes (2)

  • Complications

    6 months

  • Time

    1 day

Study Arms (9)

A

ACTIVE COMPARATOR

Study Group A: Subjects receive 2.5 mg intravitreal bevacizumab 1-3 days prior to vitrectomy.

Drug: Intravitreal bevacizumab or intravitreal ziv-aflibercept

B

ACTIVE COMPARATOR

Study Group B: Subjects receive 2.5 mg intravitreal bevacizumab 5-10 days prior to vitrectomy.

Drug: Intravitreal bevacizumab or intravitreal ziv-aflibercept

C

ACTIVE COMPARATOR

Study Group C: Subjects receive 1.25 mg intravitreal bevacizumab 1-10 days prior to vitrectomy.

Drug: Intravitreal bevacizumab or intravitreal ziv-aflibercept

D

ACTIVE COMPARATOR

Study Group D: Subjects receive 0.625 mg intravitreal bevacizumab 1-10 days prior to vitrectomy.

Drug: Intravitreal bevacizumab or intravitreal ziv-aflibercept

E

ACTIVE COMPARATOR

Study Group E: Subjects receive 2.5 mg intravitreal bevacizumab 1-10 days prior to vitrectomy.

Drug: Intravitreal bevacizumab or intravitreal ziv-aflibercept

F

ACTIVE COMPARATOR

Study Group F: Subjects receive 1.25 mg intravitreal ziv-aflibercept 1-10 days prior to vitrectomy.

Drug: Intravitreal bevacizumab or intravitreal ziv-aflibercept

G

ACTIVE COMPARATOR

Study Group G: Subjects receive 1.25 mg intravitreal ziv-aflibercept 1-3 days prior to vitrectomy.

Drug: Intravitreal bevacizumab or intravitreal ziv-aflibercept

H

ACTIVE COMPARATOR

Study Group H: Subjects receive 1.25 mg intravitreal ziv-aflibercept 5-10 days prior to vitrectomy.

Drug: Intravitreal bevacizumab or intravitreal ziv-aflibercept

I

ACTIVE COMPARATOR

Study Group I: Subjects receive 1.25 mg intravitreal ziv-aflibercept 1-10 days prior to vitrectomy, and then receive 1.25 mg intravitreal ziv-aflibercept at the completion of the vitrectomy.

Drug: Intravitreal bevacizumab or intravitreal ziv-aflibercept

Interventions

Intravitreal bevacizumab or intravitreal ziv-aflibercept is given preoperatively at various time intervals and doses.

ABCDEFGHI

Eligibility Criteria

Age18 Years - 85 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Subject age is 18-85 years.
  • Subject consents to study participation and is capable of 6 months of follow-up.
  • The subject has type I or II Diabetes Mellitus with active PDR in the study eye.
  • Best-corrected spectacle visual acuity (BCSVA) on the Snellen eye chart ranges from 20/40 to light perception with projection in the study eye.
  • 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.
  • Only one eye per patient is eligible for the study.

You may not qualify if:

  • 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.
  • Subject is known to have macular ischemia, which in the opinion of the examiner, is responsible for two or more lines of reduced BCSVA in the study eye.
  • 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.
  • Subject is known to have had a macula-involving retinal detachment for greater than 6 months in the study eye.
  • Subject has had a previous vitrectomy (anterior or PPV) in the study eye.
  • Subject has uncontrolled neovascular glaucoma (intraocular pressure \> 30 mmHg despite medical/surgical treatment) in the study eye.
  • Subject received systemic or intravitreal anti-VEGF treatment to the study eye within 3 months of anticipated study enrollment.
  • Subject has uncontrolled hypertension (systolic \> 200 mmHg or diastolic \> 120 mmHg) despite adherence to a multiple anti-hypertensive medication regimen.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hospital La Carlota

Montemorelos, Nuevo León, Mexico

Location

MeSH Terms

Conditions

Diabetic Retinopathy

Condition Hierarchy (Ancestors)

Retinal DiseasesEye DiseasesDiabetic AngiopathiesVascular DiseasesCardiovascular DiseasesDiabetes ComplicationsDiabetes MellitusEndocrine System Diseases

Study Officials

  • Sloan Rush, MD

    panhandle eye group

    STUDY CHAIR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, CARE PROVIDER
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Physician

Study Record Dates

First Submitted

October 27, 2015

First Posted

October 28, 2015

Study Start

October 1, 2015

Primary Completion

January 4, 2019

Study Completion

January 4, 2019

Last Updated

December 3, 2021

Record last verified: 2021-11

Locations