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To Compare Anti-VEGF Monotherapy With Anti-VEGF and EPM Grid Laser Combination Therapy for Diabetic Macular Edema (END-DME)

Primary Purpose

Diabetic Macula Edema

Status
Unknown status
Phase
Phase 4
Locations
China
Study Type
Interventional
Intervention
End-Point-Management grid laser
ranibizumab
Bevacizumab
Sponsored by
The University of Hong Kong
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Diabetic Macula Edema focused on measuring Diabetic Macula Edema, End-Point-Management, ranibizumab, bevacizumab

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  • Age ≥ 18 years with CSME
  • Diagnosis of diabetes mellitus (type 1 or type 2)
  • At least one eye meets the study eye criteria
  • Able and willing to provide informed consent prior to any study-related procedures
  • Central foveal thickness ≥ 300 microns at baseline (SPECTRALIS or Cirrus HD OCT)
  • LogMAR Best corrected visual acuity 0.20 (Snellen 20/30) to 1.3 (Snellen 20/400).
  • Willing and able to comply with clinic visits and study-related procedures
  • Central Foveal Thickness on OCT 300-600 micron
  • After first injection, wait for ME to reduce before proceeding with the laser. Exclude if ME persists >500um at the 4-week follow up

Exclusion Criteria:

  • Macular edema is considered to be due to a cause other than diabetic macular edema.
  • An ocular condition is present such that, in the opinion of the investigator, visual acuity loss would not improve from resolution of macular edema (e.g., foveal atrophy, VMT, pigment epithelium abnormalities, dense subfoveal hard exudates, non-retinal condition such as glaucoma etc).
  • Substantial cataract that, in the opinion of the investigator, is likely to be affecting visual acuity. Likely to be affecting BCVA and performing laser treatment.
  • History of treatment for diabetic macular edema at any time in the past (such as grid macular photocoagulation).
  • History of treatment for diabetic macular edema at any time in the past 3 months (such as intravitreal or peribulbar corticosteroids, ranibizumab, bevacizumab, aflibercept).
  • Focal laser photocoagulation should be performed before enrolling into the study if needed. 3 months gap required between last laser procedure and recruitment.
  • History of panretinal (scatter) photocoagulation (PRP) within 3 months prior to enrollment.
  • Anticipated need for PRP in the study period.
  • History of major retinal surgery (including vitrectomy, scleral buckle, any glaucoma surgery, etc.).
  • History of YAG capsulotomy performed within 3 months.
  • Aphakia.
  • Intraocular pressure ≥ 25 mmHg.
  • History of open-angle glaucoma (either primary open-angle glaucoma or other cause of open-angle glaucoma; note: history of angle-closure glaucoma is not an exclusion criterion).
  • Exam evidence of external ocular infection, including conjunctivitis, chalazion, or significant Blepharitis.
  • Systemic Exclusion Criteria: A subject is not eligible if any of the following exclusion criteria are present:
  • 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).
  • Blood pressure > 180/110 (systolic above 180 OR diastolic above 110).
  • Major surgery within 28 days prior to randomization or major surgery planned during the next 6 months.
  • Myocardial infarction, other cardiac event requiring hospitalization, stroke, transient ischemic attack, or treatment for acute congestive heart failure within 6 months prior to randomization.
  • Systemic anti-vascular growth factor (ranibizumab) or pro-VEGF treatment within 4 months.
  • For women of childbearing potential: pregnant or lactating or intending to become pregnant within the next 12 months.
  • Subject is expecting to move out of the area of the clinical center to an area not covered by another clinical center during the study.
  • The target eye is the only eye of the subject, with the fellow eye's visual acuity lower than 1.3 LogMAR units.
  • Baseline logMAR BCVA from 0.05 to 0.5 (Snellen)
  • Fellow eye BCVA 0.05 or worse.

Sites / Locations

  • The University of Hong Kong

Arms of the Study

Arm 1

Arm 2

Arm Type

Experimental

Active Comparator

Arm Label

Combination Anti-VEGF and EPM laser

Anti-VEGF monotherapy

Arm Description

Subjects will receive both anti-VEGF injections and EPM laser.

Subjects will receive anti-VEGF injections monotherapy.

Outcomes

Primary Outcome Measures

Difference in number of anti-VEGF required
The number of injections of anti-VEGF required at the end of the 6 months period.

Secondary Outcome Measures

Change in best corrected visual acuity
The change in best corrected visual acuity among subjects in different groups at the end of the 6 months period when compared to baseline.
Central retinal thickness
The change in central retinal thickness among subjects in different groups at the end of the 6 months period when compared to baseline.
Treatment related complications
This will look at treatment related complications in terms of changes in intraocular pressure post-injection
Treatment related complications
This will look at treatment related complications in terms of infection
Treatment related complications
This will look at treatment related complications in terms of retinal detachment
Recurrence of macular edema
Recurrence of macular edema during the 6 months period will be monitored.

Full Information

First Posted
March 23, 2015
Last Updated
April 17, 2016
Sponsor
The University of Hong Kong
Collaborators
Nagoya City University, Asahikawa Medical College, University of Fukui, Eguchi Eye Clinic, Kyoto University, Nagasaki University, Osaka Medical College, Kyushu University, Tokyo Medical University Hachioji Medical Centre, Hokkaido University, Kyorin University, Inje University, Pusan National University, Kyungpook National University Hospital, Chungnam National University Hospital, Sun Cheon Hyang University, Kyunghee University, Yeungnam University Hospital, Korea University, National University Hospital, Singapore, Yamagata University
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1. Study Identification

Unique Protocol Identification Number
NCT02462304
Brief Title
To Compare Anti-VEGF Monotherapy With Anti-VEGF and EPM Grid Laser Combination Therapy for Diabetic Macular Edema
Acronym
END-DME
Official Title
To Compare the Efficacy of Monotherapy With Anti-Vascular Endothelial Growth Factor (Ranibizumab or Bevacizumab) Versus Combination Therapy With Anti-Vascular Endothelial Growth Factor and End-point-management Grid Laser Photocoagulation for Diabetic Macular Edema
Study Type
Interventional

2. Study Status

Record Verification Date
April 2016
Overall Recruitment Status
Unknown status
Study Start Date
June 2015 (undefined)
Primary Completion Date
June 2017 (Anticipated)
Study Completion Date
December 2017 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Principal Investigator
Name of the Sponsor
The University of Hong Kong
Collaborators
Nagoya City University, Asahikawa Medical College, University of Fukui, Eguchi Eye Clinic, Kyoto University, Nagasaki University, Osaka Medical College, Kyushu University, Tokyo Medical University Hachioji Medical Centre, Hokkaido University, Kyorin University, Inje University, Pusan National University, Kyungpook National University Hospital, Chungnam National University Hospital, Sun Cheon Hyang University, Kyunghee University, Yeungnam University Hospital, Korea University, National University Hospital, Singapore, Yamagata University

4. Oversight

Data Monitoring Committee
Yes

5. Study Description

Brief Summary
Objectives: To compare the efficacy of monotherapy with anti-Vascular Endothelial Growth Factor (ranibizumab or bevacizumab) with combined therapy with anti-Vascular Endothelial Growth Factor and end-point-management grid laser photocoagulation for diabetic macular edema. Study design: Open-label non-randomized interventional study. Study overview: This study aims to look at the efficacy of treating diabetic macular edema (DME) with either anti-Vascular Endothelial Growth Factor(anti-VEGF) monotherapy, compared with combination therapy with anti-VEGF and End-Point-Management (EPM) grid laser photocoagulation, over a period of 6 months. Various sites from across Asia (Japan, South Korea, Hong Kong) will participate. Depending on the availability of EPM laser, sites can either contribute to the 'Anti-VEGF monotherapy' arm, or to the 'Combination therapy' arm.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Diabetic Macula Edema
Keywords
Diabetic Macula Edema, End-Point-Management, ranibizumab, bevacizumab

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 4
Interventional Study Model
Parallel Assignment
Masking
None (Open Label)
Allocation
Non-Randomized
Enrollment
60 (Anticipated)

8. Arms, Groups, and Interventions

Arm Title
Combination Anti-VEGF and EPM laser
Arm Type
Experimental
Arm Description
Subjects will receive both anti-VEGF injections and EPM laser.
Arm Title
Anti-VEGF monotherapy
Arm Type
Active Comparator
Arm Description
Subjects will receive anti-VEGF injections monotherapy.
Intervention Type
Procedure
Intervention Name(s)
End-Point-Management grid laser
Intervention Type
Drug
Intervention Name(s)
ranibizumab
Intervention Type
Drug
Intervention Name(s)
Bevacizumab
Primary Outcome Measure Information:
Title
Difference in number of anti-VEGF required
Description
The number of injections of anti-VEGF required at the end of the 6 months period.
Time Frame
6 months
Secondary Outcome Measure Information:
Title
Change in best corrected visual acuity
Description
The change in best corrected visual acuity among subjects in different groups at the end of the 6 months period when compared to baseline.
Time Frame
6 months
Title
Central retinal thickness
Description
The change in central retinal thickness among subjects in different groups at the end of the 6 months period when compared to baseline.
Time Frame
6 months
Title
Treatment related complications
Description
This will look at treatment related complications in terms of changes in intraocular pressure post-injection
Time Frame
6 months
Title
Treatment related complications
Description
This will look at treatment related complications in terms of infection
Time Frame
6 months
Title
Treatment related complications
Description
This will look at treatment related complications in terms of retinal detachment
Time Frame
6 months
Title
Recurrence of macular edema
Description
Recurrence of macular edema during the 6 months period will be monitored.
Time Frame
6 months

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Age ≥ 18 years with CSME Diagnosis of diabetes mellitus (type 1 or type 2) At least one eye meets the study eye criteria Able and willing to provide informed consent prior to any study-related procedures Central foveal thickness ≥ 300 microns at baseline (SPECTRALIS or Cirrus HD OCT) LogMAR Best corrected visual acuity 0.20 (Snellen 20/30) to 1.3 (Snellen 20/400). Willing and able to comply with clinic visits and study-related procedures Central Foveal Thickness on OCT 300-600 micron After first injection, wait for ME to reduce before proceeding with the laser. Exclude if ME persists >500um at the 4-week follow up Exclusion Criteria: Macular edema is considered to be due to a cause other than diabetic macular edema. An ocular condition is present such that, in the opinion of the investigator, visual acuity loss would not improve from resolution of macular edema (e.g., foveal atrophy, VMT, pigment epithelium abnormalities, dense subfoveal hard exudates, non-retinal condition such as glaucoma etc). Substantial cataract that, in the opinion of the investigator, is likely to be affecting visual acuity. Likely to be affecting BCVA and performing laser treatment. History of treatment for diabetic macular edema at any time in the past (such as grid macular photocoagulation). History of treatment for diabetic macular edema at any time in the past 3 months (such as intravitreal or peribulbar corticosteroids, ranibizumab, bevacizumab, aflibercept). Focal laser photocoagulation should be performed before enrolling into the study if needed. 3 months gap required between last laser procedure and recruitment. History of panretinal (scatter) photocoagulation (PRP) within 3 months prior to enrollment. Anticipated need for PRP in the study period. History of major retinal surgery (including vitrectomy, scleral buckle, any glaucoma surgery, etc.). History of YAG capsulotomy performed within 3 months. Aphakia. Intraocular pressure ≥ 25 mmHg. History of open-angle glaucoma (either primary open-angle glaucoma or other cause of open-angle glaucoma; note: history of angle-closure glaucoma is not an exclusion criterion). Exam evidence of external ocular infection, including conjunctivitis, chalazion, or significant Blepharitis. Systemic Exclusion Criteria: A subject is not eligible if any of the following exclusion criteria are present: 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). Blood pressure > 180/110 (systolic above 180 OR diastolic above 110). Major surgery within 28 days prior to randomization or major surgery planned during the next 6 months. Myocardial infarction, other cardiac event requiring hospitalization, stroke, transient ischemic attack, or treatment for acute congestive heart failure within 6 months prior to randomization. Systemic anti-vascular growth factor (ranibizumab) or pro-VEGF treatment within 4 months. For women of childbearing potential: pregnant or lactating or intending to become pregnant within the next 12 months. Subject is expecting to move out of the area of the clinical center to an area not covered by another clinical center during the study. The target eye is the only eye of the subject, with the fellow eye's visual acuity lower than 1.3 LogMAR units. Baseline logMAR BCVA from 0.05 to 0.5 (Snellen) Fellow eye BCVA 0.05 or worse.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Ian Wong, FRCOphth
Organizational Affiliation
The University of Hong Kong
Official's Role
Principal Investigator
Facility Information:
Facility Name
The University of Hong Kong
City
Hong Kong
Country
China

12. IPD Sharing Statement

Learn more about this trial

To Compare Anti-VEGF Monotherapy With Anti-VEGF and EPM Grid Laser Combination Therapy for Diabetic Macular Edema

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