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Efficacy and Safety of Three Different Aflibercept Regimens in Subjects With Diabetic Macular Edema (DME) (VIOLET)

Primary Purpose

Macular Edema

Status
Completed
Phase
Phase 3
Locations
International
Study Type
Interventional
Intervention
Aflibercept (Eylea, VEGF Trap-Eye, BAY86-5321)
Sponsored by
Bayer
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Macular Edema focused on measuring Diabetic macular edema, DME

Eligibility Criteria

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

Inclusion Criteria:

The subject's history of aflibercept treatment met all of the following:

  • Treatment in the study eye was initiated with five monthly (-1 week /+2 weeks) doses of 2 mg aflibercept and improvements of visual and anatomic outcomes were observed and documented.
  • Following the above initiation phase, the intervals between treatments were between 6 weeks and 12 weeks (one exception was allowed).
  • The interval between the last 2 pre-study injections was ≥ 8 weeks, and visual and anatomic outcomes had been stable over this interval.
  • The subject received the last intravitreal (IVT) injection of aflibercept in the study eye 8 weeks (±10 days) before the first planned treatment /randomization in this study.
  • Total prior treatment duration with aflibercept (i.e. from first aflibercept treatment ever to enrollment into this study) was 1 year or longer.

To be met at initiation of pre-study aflibercept treatment:

  • Type 1 or 2 diabetes mellitus (DM)
  • Diagnosis of diabetic macular edema (DME) secondary to DM involving the center of the macula (defined as the area of the center subfield on optical coherence tomography [OCT]) in the study eye
  • Decrease in vision determined to be primarily the result of DME in the study eye
  • Best corrected visual acuity (BCVA) in the study eye of Early Treatment Diabetic Retinopathy Study (ETDRS) letter score 73 to 24

Exclusion Criteria:

At initiation of pre-study aflibercept treatment:

- Previous treatment with anti-angiogenic drugs in study eye (e.g., pegaptanib sodium, bevacizumab, ranibizumab, or aflibercept) within the last 12 weeks before initiation of aflibercept pre-study treatment

At initiation of pre-study aflibercept treatment, screening for this study, and baseline for this study:

  • Prior treatment of the study eye with long acting steroids, either periocular or intraocular, in the preceding 120 days or Iluvien intravitreal implant at any time
  • Active proliferative diabetic retinopathy, current iris neovascularization, vitreous hemorrhage, or tractional retinal detachment in the study eye
  • Cataract surgery or any other intraocular surgery within 90 days of aflibercept treatment in the study eye
  • Ocular inflammation (including trace or above) or history of uveitis in the study eye
  • Structural damage to the center of the macula in the study eye that was likely to preclude improvement in BCVA following the resolution of macular edema including atrophy of the retinal pigment epithelium, subretinal fibrosis or scar, significant macular ischemia or organized hard exudates
  • Concurrent disease in the study eye, other than DME, that could compromise visual acuity, require medical or surgical intervention during the study period, or could confound interpretation of the results (including advanced glaucoma, retinal vascular occlusion, retinal detachment, macular hole, or choroidal neovascularization of any cause)
  • Uncontrolled DM as defined by hemoglobin (Hb) A1c > 12.0% at screening and baseline for this study
  • Any ocular or periocular infection in the preceding 4 weeks in either eye
  • History of either cerebral vascular accident and/or myocardial infarction within 180 days before aflibercept treatment

Sites / Locations

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm Type

Experimental

Experimental

Experimental

Arm Label

Aflibercept 2 mg fixed

Aflibercept 2 mg flexible

Aflibercept 2 mg PRN

Arm Description

Participants received fixed dosing of 2 mg aflibercept at injection intervals of 8 weeks

Participants received flexible dosing of 2 mg aflibercept at injection intervals of ≥8 week

Participants received monthly monitoring with 2 mg aflibercept injection pro re nata (PRN, as needed)

Outcomes

Primary Outcome Measures

Mean Change From Baseline in Best Corrected Visual Acuity (BCVA) at Week 52
Best Corrected Visual Acuity (BCVA) was measured in the study eye by the Early Treatment Diabetic Retinopathy Study (ETDRS) letter score starting at 4 meters. The ETDRS chart includes 70 letters in total and the letter score ranges from 0 to 100. More letters read correctly results in a higher letter score, which represents better visual acuity.

Secondary Outcome Measures

Mean Change From Baseline in Central Retinal Thickness (CRT) at Week 52
Central Retinal Thickness (CRT) was measured in the study eye by spectral domain optical coherence tomography (SD-OCT).
Number of Participants With Categorized Changes From Baseline in Best Corrected Visual Acuity (BCVA) at Week 52
Best Corrected Visual Acuity (BCVA) was measured in the study eye by the Early Treatment Diabetic Retinopathy Study (ETDRS) letter score starting at 4 meters. The ETDRS chart includes 70 letters in total and the letter score ranges from 0 to 100. More letters read correctly results in a higher letter score, which represents better visual acuity
Mean Change From Baseline in Best Corrected Visual Acuity (BCVA) at Week 100
Best Corrected Visual Acuity (BCVA) was measured in the study eye by the Early Treatment Diabetic Retinopathy Study (ETDRS) letter score starting at 4 meters. The ETDRS chart includes 70 letters in total and the letter score ranges from 0 to 100. More letters read correctly results in a higher letter score, which represents better visual acuity.
Mean Change From Baseline in Central Retinal Thickness (CRT) at Week 100
Central Retinal Thickness (CRT) was measured in the study eye by spectral domain optical coherence tomography (SD-OCT).
Number of Participants With Categorized Changes From Baseline in Best Corrected Visual Acuity (BCVA) at Week 100
Best Corrected Visual Acuity (BCVA) was measured in the study eye by the Early Treatment Diabetic Retinopathy Study (ETDRS) letter score starting at 4 meters. The ETDRS chart includes 70 letters in total and the letter score ranges from 0 to 100. More letters read correctly results in a higher letter score, which represents better visual acuity
Number of Participants With Treatment-emergent Adverse Event (TEAE)
AEs that started after the first application of aflibercept under this protocol until 30 days after the last dose of study drug administration

Full Information

First Posted
June 28, 2016
Last Updated
July 15, 2020
Sponsor
Bayer
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1. Study Identification

Unique Protocol Identification Number
NCT02818998
Brief Title
Efficacy and Safety of Three Different Aflibercept Regimens in Subjects With Diabetic Macular Edema (DME)
Acronym
VIOLET
Official Title
An Open-label, Randomized, Active-controlled, Parallel-group, Phase-3b Study of the Efficacy, Safety, and Tolerability of Three Different Treatment Regimens of 2 mg Aflibercept Administered by Intravitreal Injections to Subjects With Diabetic Macular Edema (DME)
Study Type
Interventional

2. Study Status

Record Verification Date
July 2020
Overall Recruitment Status
Completed
Study Start Date
November 16, 2016 (Actual)
Primary Completion Date
November 13, 2018 (Actual)
Study Completion Date
September 24, 2019 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Bayer

4. Oversight

Studies a U.S. FDA-regulated Device Product
No
Product Manufactured in and Exported from the U.S.
Yes
Data Monitoring Committee
No

5. Study Description

Brief Summary
To evaluate the efficacy of long-term treatment with 2 mg aflibercept via different intravitreal (IVT) treatment regimens to participants with DME pretreated with 2 mg aflibercept every 8 weeks after 5 initial monthly injections for approximately 1 year or more (according to the EU label for the first year of treatment)

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Macular Edema
Keywords
Diabetic macular edema, DME

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 3
Interventional Study Model
Parallel Assignment
Masking
None (Open Label)
Allocation
Randomized
Enrollment
463 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Aflibercept 2 mg fixed
Arm Type
Experimental
Arm Description
Participants received fixed dosing of 2 mg aflibercept at injection intervals of 8 weeks
Arm Title
Aflibercept 2 mg flexible
Arm Type
Experimental
Arm Description
Participants received flexible dosing of 2 mg aflibercept at injection intervals of ≥8 week
Arm Title
Aflibercept 2 mg PRN
Arm Type
Experimental
Arm Description
Participants received monthly monitoring with 2 mg aflibercept injection pro re nata (PRN, as needed)
Intervention Type
Drug
Intervention Name(s)
Aflibercept (Eylea, VEGF Trap-Eye, BAY86-5321)
Primary Outcome Measure Information:
Title
Mean Change From Baseline in Best Corrected Visual Acuity (BCVA) at Week 52
Description
Best Corrected Visual Acuity (BCVA) was measured in the study eye by the Early Treatment Diabetic Retinopathy Study (ETDRS) letter score starting at 4 meters. The ETDRS chart includes 70 letters in total and the letter score ranges from 0 to 100. More letters read correctly results in a higher letter score, which represents better visual acuity.
Time Frame
From baseline to Week 52
Secondary Outcome Measure Information:
Title
Mean Change From Baseline in Central Retinal Thickness (CRT) at Week 52
Description
Central Retinal Thickness (CRT) was measured in the study eye by spectral domain optical coherence tomography (SD-OCT).
Time Frame
From baseline to week 52
Title
Number of Participants With Categorized Changes From Baseline in Best Corrected Visual Acuity (BCVA) at Week 52
Description
Best Corrected Visual Acuity (BCVA) was measured in the study eye by the Early Treatment Diabetic Retinopathy Study (ETDRS) letter score starting at 4 meters. The ETDRS chart includes 70 letters in total and the letter score ranges from 0 to 100. More letters read correctly results in a higher letter score, which represents better visual acuity
Time Frame
From baseline to week 52
Title
Mean Change From Baseline in Best Corrected Visual Acuity (BCVA) at Week 100
Description
Best Corrected Visual Acuity (BCVA) was measured in the study eye by the Early Treatment Diabetic Retinopathy Study (ETDRS) letter score starting at 4 meters. The ETDRS chart includes 70 letters in total and the letter score ranges from 0 to 100. More letters read correctly results in a higher letter score, which represents better visual acuity.
Time Frame
From baseline to Week 100
Title
Mean Change From Baseline in Central Retinal Thickness (CRT) at Week 100
Description
Central Retinal Thickness (CRT) was measured in the study eye by spectral domain optical coherence tomography (SD-OCT).
Time Frame
From baseline to Week 100
Title
Number of Participants With Categorized Changes From Baseline in Best Corrected Visual Acuity (BCVA) at Week 100
Description
Best Corrected Visual Acuity (BCVA) was measured in the study eye by the Early Treatment Diabetic Retinopathy Study (ETDRS) letter score starting at 4 meters. The ETDRS chart includes 70 letters in total and the letter score ranges from 0 to 100. More letters read correctly results in a higher letter score, which represents better visual acuity
Time Frame
From baseline to Week 100
Title
Number of Participants With Treatment-emergent Adverse Event (TEAE)
Description
AEs that started after the first application of aflibercept under this protocol until 30 days after the last dose of study drug administration
Time Frame
Up to Week 100

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: The subject's history of aflibercept treatment met all of the following: Treatment in the study eye was initiated with five monthly (-1 week /+2 weeks) doses of 2 mg aflibercept and improvements of visual and anatomic outcomes were observed and documented. Following the above initiation phase, the intervals between treatments were between 6 weeks and 12 weeks (one exception was allowed). The interval between the last 2 pre-study injections was ≥ 8 weeks, and visual and anatomic outcomes had been stable over this interval. The subject received the last intravitreal (IVT) injection of aflibercept in the study eye 8 weeks (±10 days) before the first planned treatment /randomization in this study. Total prior treatment duration with aflibercept (i.e. from first aflibercept treatment ever to enrollment into this study) was 1 year or longer. To be met at initiation of pre-study aflibercept treatment: Type 1 or 2 diabetes mellitus (DM) Diagnosis of diabetic macular edema (DME) secondary to DM involving the center of the macula (defined as the area of the center subfield on optical coherence tomography [OCT]) in the study eye Decrease in vision determined to be primarily the result of DME in the study eye Best corrected visual acuity (BCVA) in the study eye of Early Treatment Diabetic Retinopathy Study (ETDRS) letter score 73 to 24 Exclusion Criteria: At initiation of pre-study aflibercept treatment: - Previous treatment with anti-angiogenic drugs in study eye (e.g., pegaptanib sodium, bevacizumab, ranibizumab, or aflibercept) within the last 12 weeks before initiation of aflibercept pre-study treatment At initiation of pre-study aflibercept treatment, screening for this study, and baseline for this study: Prior treatment of the study eye with long acting steroids, either periocular or intraocular, in the preceding 120 days or Iluvien intravitreal implant at any time Active proliferative diabetic retinopathy, current iris neovascularization, vitreous hemorrhage, or tractional retinal detachment in the study eye Cataract surgery or any other intraocular surgery within 90 days of aflibercept treatment in the study eye Ocular inflammation (including trace or above) or history of uveitis in the study eye Structural damage to the center of the macula in the study eye that was likely to preclude improvement in BCVA following the resolution of macular edema including atrophy of the retinal pigment epithelium, subretinal fibrosis or scar, significant macular ischemia or organized hard exudates Concurrent disease in the study eye, other than DME, that could compromise visual acuity, require medical or surgical intervention during the study period, or could confound interpretation of the results (including advanced glaucoma, retinal vascular occlusion, retinal detachment, macular hole, or choroidal neovascularization of any cause) Uncontrolled DM as defined by hemoglobin (Hb) A1c > 12.0% at screening and baseline for this study Any ocular or periocular infection in the preceding 4 weeks in either eye History of either cerebral vascular accident and/or myocardial infarction within 180 days before aflibercept treatment
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Bayer Study Director
Organizational Affiliation
Bayer
Official's Role
Study Director
Facility Information:
City
Graz
State/Province
Steiermark
ZIP/Postal Code
8036
Country
Austria
City
Wien
ZIP/Postal Code
1090
Country
Austria
City
Halifax
State/Province
Nova Scotia
ZIP/Postal Code
B3H 2Y9
Country
Canada
City
Mississauga
State/Province
Ontario
ZIP/Postal Code
L4W 1W9
Country
Canada
City
Toronto
State/Province
Ontario
ZIP/Postal Code
M3C 0G9
Country
Canada
City
Montreal
State/Province
Quebec
ZIP/Postal Code
H4P 2S4
Country
Canada
City
Sherbrooke
State/Province
Quebec
ZIP/Postal Code
J1G 2V4
Country
Canada
City
Hradec Kralove
ZIP/Postal Code
500 05
Country
Czechia
City
Praha 10
ZIP/Postal Code
100 34
Country
Czechia
City
Creteil Cedex
ZIP/Postal Code
94010
Country
France
City
Darmstadt
State/Province
Hessen
ZIP/Postal Code
64297
Country
Germany
City
Frankfurt
State/Province
Hessen
ZIP/Postal Code
60596
Country
Germany
City
Marburg
State/Province
Hessen
ZIP/Postal Code
35043
Country
Germany
City
Göttingen
State/Province
Niedersachsen
ZIP/Postal Code
37075
Country
Germany
City
Bonn
State/Province
Nordrhein-Westfalen
ZIP/Postal Code
53105
Country
Germany
City
Köln
State/Province
Nordrhein-Westfalen
ZIP/Postal Code
50924
Country
Germany
City
Dresden
State/Province
Sachsen
ZIP/Postal Code
01307
Country
Germany
City
Budapest
ZIP/Postal Code
1085
Country
Hungary
City
Budapest
ZIP/Postal Code
1106
Country
Hungary
City
Budapest
ZIP/Postal Code
1133
Country
Hungary
City
Debrecen
ZIP/Postal Code
4032
Country
Hungary
City
Pecs
ZIP/Postal Code
7621
Country
Hungary
City
Roma
State/Province
Lazio
ZIP/Postal Code
00133
Country
Italy
City
Genova
State/Province
Liguria
ZIP/Postal Code
16132
Country
Italy
City
Milano
State/Province
Lombardia
ZIP/Postal Code
20122
Country
Italy
City
Milano
State/Province
Lombardia
ZIP/Postal Code
20132
Country
Italy
City
Torino
State/Province
Piemonte
ZIP/Postal Code
10122
Country
Italy
City
Cagliari
State/Province
Sardegna
ZIP/Postal Code
09124
Country
Italy
City
Sassari
State/Province
Sardegna
ZIP/Postal Code
07100
Country
Italy
City
Firenze
State/Province
Toscana
ZIP/Postal Code
50134
Country
Italy
City
Padova
State/Province
Veneto
ZIP/Postal Code
35128
Country
Italy
City
Kaunas
ZIP/Postal Code
LT-50009
Country
Lithuania
City
Vilnius
ZIP/Postal Code
LT-08661
Country
Lithuania
City
Bydgoszcz
ZIP/Postal Code
85-631
Country
Poland
City
Gdansk
ZIP/Postal Code
80-809
Country
Poland
City
Katowice
ZIP/Postal Code
40-594
Country
Poland
City
Krakow
ZIP/Postal Code
31-501
Country
Poland
City
Lodz
ZIP/Postal Code
91-134
Country
Poland
City
Lublin
ZIP/Postal Code
20-081
Country
Poland
City
Poznan
ZIP/Postal Code
61-285
Country
Poland
City
Warszawa
ZIP/Postal Code
01-013
Country
Poland
City
Warszawa
ZIP/Postal Code
04-141
Country
Poland
City
Vila Franca de Xira
State/Province
Lisboa
ZIP/Postal Code
2600-178
Country
Portugal
City
Coimbra
ZIP/Postal Code
3000-548
Country
Portugal
City
Leiria
ZIP/Postal Code
2410-197
Country
Portugal
City
Lisboa
ZIP/Postal Code
1649-035
Country
Portugal
City
Porto
ZIP/Postal Code
4200-319
Country
Portugal
City
Bratislava
ZIP/Postal Code
826 06
Country
Slovakia
City
Bratislava
ZIP/Postal Code
851 07
Country
Slovakia
City
Nitra
ZIP/Postal Code
949 01
Country
Slovakia
City
Zilina
ZIP/Postal Code
01207
Country
Slovakia
City
Zvolen
ZIP/Postal Code
960 01
Country
Slovakia
City
L'Hospitalet de Llobregat
State/Province
Barcelona
ZIP/Postal Code
08907
Country
Spain
City
Sant Cugat del Vallés
State/Province
Barcelona
ZIP/Postal Code
08195
Country
Spain
City
Albacete
ZIP/Postal Code
02006
Country
Spain
City
Barcelona
ZIP/Postal Code
08035
Country
Spain
City
Barcelona
ZIP/Postal Code
08036
Country
Spain
City
Valencia
ZIP/Postal Code
46014
Country
Spain
City
Bern
Country
Switzerland
City
Genève
ZIP/Postal Code
1204
Country
Switzerland
City
Southampton
State/Province
Hampshire
ZIP/Postal Code
SO16 6YD
Country
United Kingdom
City
Sunderland
State/Province
Tyne And Wear
ZIP/Postal Code
SR2 9HP
Country
United Kingdom
City
Leeds
State/Province
West Yorkshire
ZIP/Postal Code
LS9 7TF
Country
United Kingdom
City
London
ZIP/Postal Code
EC1V 2PD
Country
United Kingdom

12. IPD Sharing Statement

Citations:
PubMed Identifier
35412227
Citation
Garweg JG, Stefanickova J, Hoyng C, Niesen T, Schmelter T, Leal S, Sivaprasad S; VIOLET Investigators. Dosing Regimens of Intravitreal Aflibercept for Diabetic Macular Edema Beyond the First Year: VIOLET, a Prospective Randomized Trial. Adv Ther. 2022 Jun;39(6):2701-2716. doi: 10.1007/s12325-022-02119-z. Epub 2022 Apr 12.
Results Reference
derived
Links:
URL
https://clinicaltrials.bayer.com/
Description
Click here to find results for studies related to Bayer Healthcare products
URL
http://www.clinicaltrialsregister.eu/
Description
Click here to find information about studies related to Bayer Healthcare products conducted in Europe

Learn more about this trial

Efficacy and Safety of Three Different Aflibercept Regimens in Subjects With Diabetic Macular Edema (DME)

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