Diabetic Macular EdemaPhase 3VISTA DMENCT01363440
Study of Intravitreal Aflibercept Injection (IAI; EYLEA®; BAY86-5321) in Patients With Diabetic Macular Edema
A Phase 3 study testing Intravitreal Aflibercept Injection (IAI; EYLEA®; BAY86-5321) and Macular Laser Photocoagulation in people with Diabetic Macular Edema, run by Regeneron Pharmaceuticals at 51 sites in United States.
Trial summary
The purpose of this study is to determine the efficacy of Intravitreal Aflibercept Injection (IAI; EYLEA®; BAY86-5321) on the best corrected visual acuity (BCVA) assessed by the early treatment diabetic retinopathy study (ETDRS) chart in patients with diabetic macular edema (DME) with central involvement. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Diabetic Macular Edema
- What is being tested?
- Intravitreal Aflibercept Injection (IAI; EYLEA®; BAY86-5321) and Macular Laser Photocoagulation
- Type of treatment
- Injection or infusion, Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 466 participants
- Where
- 51 sitesUnited States
- Study dates
- May 2011to Nov 2014
- Phase
- Phase 3
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- The following is an abbreviated list of inclusion criteria:
- Adults ≥ 18 years with type 1 or 2 diabetes mellitus
- Decrease in vision determined to be primarily the result of DME in the study eye
- BCVA ETDRS letter score of 73 to 24 (20/40 to 20/320) in the study eye
Who cannot join
- The following is an abbreviated list of exclusion criteria:
- Laser photocoagulation (panretinal or macular) in the study eye within 90 days of day 1
- Previous use of intraocular or periocular corticosteroids in the study eye within 120 days of day 1
- Previous treatment with anti-angiogenic drugs in the study eye (pegaptanib sodium, bevacizumab, ranibizumab, etc.) within 90 days of day 1
- Active proliferative diabetic retinopathy (PDR) in the study eye
- Uncontrolled diabetes mellitus
- Only 1 functional eye even if that eye is otherwise eligible for the study
Trial locations and contacts
51 sites in 1 country.
51 sites in 1 country
United States51 sites
Study site
‘Aiea, Hawaii
Study site
Abilene, Texas
Study site
Arcadia, California
Study site
Asheville, North Carolina
Study site
Augusta, Georgia
Study site
Austin, Texas
Study site
Baltimore, Maryland
Study site
Beverly Hills, California
Study site
Boston, Massachusetts
Study site
Charlotte, North Carolina
Study site
Colorado Springs, Colorado
Study site
Florence, South Carolina
Study site
Fort Lauderdale, Florida
Study site
Fort Myers, Florida
Study site
Golden, Colorado
Study site
Harlingen, Texas
Study site
Houston, Texas
Study site
Kingston, Pennsylvania
Study site
La Jolla, California
Study site
Las Vegas, Nevada
Study site
Lynbrook, New York
Study site
Miami, Florida
Study site
Missoula, Montana
Study site
Mountain View, California
Study site
Nashville, Tennessee
Study site
New Brunswick, New Jersey
Study site
New London, Connecticut
Study site
Northfield, New Jersey
Study site
Oakland, California
Study site
Orchard Park, New York
Study site
Orlando, Florida
Study site
Palm Desert, California
Study site
Phoenix, Arizona
Study site
Pittsburgh, Pennsylvania
Study site
Portland, Maine
Study site
Portland, Oregon
Study site
Raleigh, North Carolina
Study site
Rapid City, South Dakota
Study site
Rochester, New York
Study site
Sacramento, California
Study site
Salt Lake City, Utah
Study site
San Antonio (2 Locations), Texas
Study site
San Francisco, California
Study site
Santa Barbara, California
Study site
Teaneck, New Jersey
Study site
The Woodlands, Texas
Study site
Torrance, California
Study site
Tucson, Arizona
Study site
West Columbia, South Carolina
Study site
Wichita, Kansas
Study site
Winter Haven, Florida
About this study
Official title: A Double-Masked, Randomized, Active-Controlled, Phase 3 Study of the Efficacy and Safety of Intravitreal Administration of VEGF Trap-Eye in Patients With Diabetic Macular Edema
The purpose of this study is to determine the efficacy of Intravitreal Aflibercept Injection (IAI; EYLEA®; BAY86-5321) on the best corrected visual acuity (BCVA) assessed by the early treatment diabetic retinopathy study (ETDRS) chart in patients with diabetic macular edema (DME) with central involvement.
- Conditions
- Diabetic Macular Edema
- Being tested
- Intravitreal Aflibercept Injection (IAI; EYLEA®; BAY86-5321), Macular Laser Photocoagulation
- Keywords
- Diabetic Macular Edema, Diabetic Retinopathy
- Medical subject headings
- Diabetic Retinopathy
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Intravitreal Aflibercept Injection (IAI; EYLEA®; BAY86-5321)Drug
Macular Laser PhotocoagulationProcedure or surgery
Laser therapy
| Study group | Role | What they receive |
|---|---|---|
| Macular Laser Photocoagulation Treatment (Control) | Active comparator | Participants received macular laser treatment at baseline and as-needed at visits at which laser re-treatment criteria were met, but no more frequently than every 12 weeks. Receives: Procedure: Macular Laser Photocoagulation |
| Intravitreal Aflibercept Injection (IAI;EYLEA®;BAY86-5321) 2Q4 | Experimental | Participants received 2mg Intravitreal aflibercept injection (IAI) every 4 weeks. Receives: Drug: Intravitreal Aflibercept Injection (IAI; EYLEA®; BAY86-5321) |
| Intravitreal Aflibercept Injection (IAI;EYLEA®;BAY86-5321) 2Q8 | Experimental | Participants received 2mg Intravitreal aflibercept injection (IAI) every 4 weeks for 5 visits followed by injections every 8 weeks. Receives: Drug: Intravitreal Aflibercept Injection (IAI; EYLEA®; BAY86-5321) |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change From Baseline in Best Corrected Visual Acuity (BCVA) as Measured by Early Treatment Diabetic Retinopathy Study (ETDRS) Letter Score at Week 52 - Last Observation Carried Forward (LOCF)
Visual function of the study eye was assessed using the ETDRS protocol. Participants with a BCVA ETDRS letter score of 73 to 24 (= Acuity of 20/40 to 20/320) in the study eye were included; a higher score represents better functioning.
Measured: Baseline and Week 52
Secondary outcomes (6)
Percentage of Participants Who Gained at Least 10 Letters in BCVA as Measured by ETDRS Letter Score Compared With Baseline at Week 52 - LOCF
Measured: Baseline and Week 52
Percentage of Participants Who Gained at Least 15 Letters in BCVA as Measured by ETDRS Letter Score Compared With Baseline at Week 52 - LOCF
Measured: Baseline and Week 52
Percentage of Participants With a ≥2-step Improvement From Baseline in the ETDRS DRSS (Diabetic Retinopathy Severity Score) as Assessed by FP (Fundus Photography) at Week 52 - LOCF
Baseline ETDRS DRSS: None (level 10); Mild to moderate nonproliferative DR (levels 14, 15, 20, 35, and 43); Moderately severe/severe nonproliferative DR (levels 47 and 53); Mild/moderate/high-risk/advanced proliferative DR (levels 61, 65, 71,75, 81, and 85)
Measured: Baseline and Week 52
Change From Baseline in Central Retinal Thickness (CRT) at Week 52 as Assessed on Optical Coherence Tomography (OCT) - LOCF
Measured: Baseline and Week 52
Change From Baseline in National Eye Institute 25-item Visual Function Questionnaire (NEI VFQ-25) Near Activities Subscale at Week 52 - LOCF
The NEI VFQ-25 total score ranges from 0-100 with a score of 0 being the worst outcome and 100 being the best outcome. The NEI VFQ questionnaire is organized as a collection of subscales that are all scored from 0-100. Near activities are defined as reading ordinary print in newspapers, performing work or hobbies requiring near vision, or finding something on a crowded shelf.
Measured: Baseline and Week 52
Change From Baseline in National Eye Institute 25-item Visual Function Questionnaire (NEI VFQ-25) Distance Activities Subscale at Week 52 - LOCF
The NEI VFQ-25 total score ranges from 0-100 with a score of 0 being the worst outcome and 100 being the best outcome. The NEI VFQ questionnaire is organized as a collection of subscales that are all scored from 0-100. Distance activities are defined as reading street signs or names on stores, and going down stairs, steps, or curbs.
Measured: Baseline and Week 52
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted1 Jun 2011 (estimated)
- Study startMay 2011
- Primary completionJan 2013
- Study completionNov 2014
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (8)Papers the sponsor has linked to this study.
- Other trials for Diabetic Macular EdemaStudies of the same condition, open and under way.
- More trials run by Regeneron PharmaceuticalsThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind
- Who is masked
- Participant, Investigator, Outcomes assessor
- Enrolment
- 466 participants (actual)
Sponsor and investigators
- Lead sponsor
- Regeneron Pharmaceuticals
- Sponsor type
- Industry (pharma, biotech, devices)
- Collaborators
- Bayer
- Responsible party
- Sponsor
- Investigators
- Clinical Trial Management, Study director, Regeneron Pharmaceuticals
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01363440
- Sponsor's protocol ID
- VGFT-OD-1009
- Acronym
- VISTA DME
- Status last verified
- Apr 2016
- First submitted
- 27 May 2011
- Last updated
- 30 May 2016
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- Yes
Publications
Matar K, Indurkar A, Yordi S, Cetin H, Reese JL, Srivastava SK, Ehlers JP. Expanding insights from the VISTA phase III trial: longitudinal comparative assessment of ellipsoid zone integrity and volumetric fluid dynamics. Sci Rep. 2025 Dec 5;15(1):43222. doi: 10.1038/s41598-025-27350-w.
PubMed 41350590Dhoot DS, Moini H, Reed K, Silva FQ, Berliner A, Du W, Sharma S. INCIDENCE OF NEW DIABETIC MACULAR EDEMA IN FELLOW EYES OF PATIENTS IN THE VISTA AND VIVID STUDIES. Retina. 2023 Feb 1;43(2):254-262. doi: 10.1097/IAE.0000000000003658. Epub 2022 Oct 17.
PubMed 36265076Dhoot DS, Moini H, Reed K, Du W, Vitti R, Berliner AJ, Singh RP. Functional outcomes of sustained improvement on Diabetic Retinopathy Severity Scale with intravitreal aflibercept in the VISTA and VIVID trials. Eye (Lond). 2023 Jul;37(10):2020-2025. doi: 10.1038/s41433-022-02058-7. Epub 2022 Apr 19.
PubMed 35440699Wykoff CC, Shah C, Dhoot D, Coleman HR, Thompson D, Du W, Baker K, Vitti R, Berliner AJ, Metzig C, Saroj N. Longitudinal Retinal Perfusion Status in Eyes with Diabetic Macular Edema Receiving Intravitreal Aflibercept or Laser in VISTA Study. Ophthalmology. 2019 Aug;126(8):1171-1180. doi: 10.1016/j.ophtha.2019.03.040. Epub 2019 Apr 1.
PubMed 30946887Midena E, Gillies M, Katz TA, Metzig C, Lu C, Ogura Y. Impact of Baseline Central Retinal Thickness on Outcomes in the VIVID-DME and VISTA-DME Studies. J Ophthalmol. 2018 Mar 29;2018:3640135. doi: 10.1155/2018/3640135. eCollection 2018.
PubMed 29785301Staurenghi G, Feltgen N, Arnold JJ, Katz TA, Metzig C, Lu C, Holz FG; VIVID-DME and VISTA-DME study investigators. Impact of baseline Diabetic Retinopathy Severity Scale scores on visual outcomes in the VIVID-DME and VISTA-DME studies. Br J Ophthalmol. 2018 Jul;102(7):954-958. doi: 10.1136/bjophthalmol-2017-310664. Epub 2017 Oct 19.
PubMed 29051325Wykoff CC, Marcus DM, Midena E, Korobelnik JF, Saroj N, Gibson A, Vitti R, Berliner AJ, Williams Liu Z, Zeitz O, Metzig C, Schmelter T, Heier JS. Intravitreal Aflibercept Injection in Eyes With Substantial Vision Loss After Laser Photocoagulation for Diabetic Macular Edema: Subanalysis of the VISTA and VIVID Randomized Clinical Trials. JAMA Ophthalmol. 2017 Feb 1;135(2):107-114. doi: 10.1001/jamaophthalmol.2016.4912.
PubMed 28006063Ziemssen F, Schlottman PG, Lim JI, Agostini H, Lang GE, Bandello F. Initiation of intravitreal aflibercept injection treatment in patients with diabetic macular edema: a review of VIVID-DME and VISTA-DME data. Int J Retina Vitreous. 2016 Jul 11;2:16. doi: 10.1186/s40942-016-0041-z. eCollection 2016.
PubMed 27847634
Study at a glance
From the registry record, last updated by the sponsor on 30 May 2016. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Double-Masked, Randomized, Active-Controlled, Phase 3 Study of the Efficacy and Safety of Intravitreal Administration of VEGF Trap-Eye in Patients With Diabetic Macular Edema
- ClinicalTrials.gov ID
- NCT01363440
- Acronym / sponsor ID
- VISTA DME / VGFT-OD-1009
- Conditions
- Diabetic Macular Edema
- Keywords
- Diabetic Macular Edema, Diabetic Retinopathy
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 466 participants (actual)
- Lead sponsor
- Regeneron PharmaceuticalsIndustry (pharma, biotech, devices)
- Collaborators
- Bayer
- Study start
- May 2011
- Primary completion
- Jan 2013 (actual)
- Study completion
- Nov 2014 (actual)
- First posted
- 1 Jun 2011 (estimated)
- Results
- Posted 20 Apr 2015
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this study is to determine the efficacy of Intravitreal Aflibercept Injection (IAI; EYLEA®; BAY86-5321) on the best corrected visual acuity (BCVA) assessed by the early treatment diabetic retinopathy study (ETDRS) chart in patients with diabetic macular edema (DME) with central involvement.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind (participant, investigator, outcomes assessor)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| Macular Laser Photocoagulation Treatment (Control) | Active comparator | Procedure: Macular Laser PhotocoagulationParticipants received macular laser treatment at baseline and as-needed at visits at which laser re-treatment criteria were met, but no more frequently than every 12 weeks. |
| Intravitreal Aflibercept Injection (IAI;EYLEA®;BAY86-5321) 2Q4 | Experimental | Drug: Intravitreal Aflibercept Injection (IAI; EYLEA®; BAY86-5321)Participants received 2mg Intravitreal aflibercept injection (IAI) every 4 weeks. |
| Intravitreal Aflibercept Injection (IAI;EYLEA®;BAY86-5321) 2Q8 | Experimental | Drug: Intravitreal Aflibercept Injection (IAI; EYLEA®; BAY86-5321)Participants received 2mg Intravitreal aflibercept injection (IAI) every 4 weeks for 5 visits followed by injections every 8 weeks. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (4 listed)
- Adults ≥ 18 years with type 1 or 2 diabetes mellitus
- Decrease in vision determined to be primarily the result of DME in the study eye
- BCVA ETDRS letter score of 73 to 24 (20/40 to 20/320) in the study eye
Key exclusion criteria (7 listed)
- Laser photocoagulation (panretinal or macular) in the study eye within 90 days of day 1
- Previous use of intraocular or periocular corticosteroids in the study eye within 120 days of day 1
- Previous treatment with anti-angiogenic drugs in the study eye (pegaptanib sodium, bevacizumab, ranibizumab, etc.) within 90 days of day 1
- Active proliferative diabetic retinopathy (PDR) in the study eye
- Uncontrolled diabetes mellitus
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Intravitreal Aflibercept Injection (IAI; EYLEA®; BAY86-5321) | Drug | Intravitreal Aflibercept Injection (IAI;EYLEA®;BAY86-5321) 2Q4, Intravitreal Aflibercept Injection (IAI;EYLEA®;BAY86-5321) 2Q8 |
| Macular Laser PhotocoagulationLaser therapy | Procedure or surgery | Macular Laser Photocoagulation Treatment (Control) |
Primary outcome
Change From Baseline in Best Corrected Visual Acuity (BCVA) as Measured by Early Treatment Diabetic Retinopathy Study (ETDRS) Letter Score at Week 52 - Last Observation Carried Forward (LOCF)
Time frame: Baseline and Week 52
Visual function of the study eye was assessed using the ETDRS protocol. Participants with a BCVA ETDRS letter score of 73 to 24 (= Acuity of 20/40 to 20/320) in the study eye were included; a higher score represents better functioning.
6 secondary outcomes
Percentage of Participants Who Gained at Least 10 Letters in BCVA as Measured by ETDRS Letter Score Compared With Baseline at Week 52 - LOCF
Time frame: Baseline and Week 52
Percentage of Participants Who Gained at Least 15 Letters in BCVA as Measured by ETDRS Letter Score Compared With Baseline at Week 52 - LOCF
Time frame: Baseline and Week 52
Percentage of Participants With a ≥2-step Improvement From Baseline in the ETDRS DRSS (Diabetic Retinopathy Severity Score) as Assessed by FP (Fundus Photography) at Week 52 - LOCF
Time frame: Baseline and Week 52
Change From Baseline in Central Retinal Thickness (CRT) at Week 52 as Assessed on Optical Coherence Tomography (OCT) - LOCF
Time frame: Baseline and Week 52
Change From Baseline in National Eye Institute 25-item Visual Function Questionnaire (NEI VFQ-25) Near Activities Subscale at Week 52 - LOCF
Time frame: Baseline and Week 52
Change From Baseline in National Eye Institute 25-item Visual Function Questionnaire (NEI VFQ-25) Distance Activities Subscale at Week 52 - LOCF
Time frame: Baseline and Week 52
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 30 May 2016.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 41350590Matar K, Indurkar A, Yordi S, Cetin H, Reese JL, Srivastava SK, Ehlers JP. Expanding insights from the VISTA phase III trial: longitudinal comparative assessment of ellipsoid zone integrity and volumetric fluid dynamics. Sci Rep. 2025 Dec 5;15(1):43222. doi: 10.1038/s41598-025-27350-w.
- Derived from this study: PubMed 36265076Dhoot DS, Moini H, Reed K, Silva FQ, Berliner A, Du W, Sharma S. INCIDENCE OF NEW DIABETIC MACULAR EDEMA IN FELLOW EYES OF PATIENTS IN THE VISTA AND VIVID STUDIES. Retina. 2023 Feb 1;43(2):254-262. doi: 10.1097/IAE.0000000000003658. Epub 2022 Oct 17.
- Derived from this study: PubMed 35440699Dhoot DS, Moini H, Reed K, Du W, Vitti R, Berliner AJ, Singh RP. Functional outcomes of sustained improvement on Diabetic Retinopathy Severity Scale with intravitreal aflibercept in the VISTA and VIVID trials. Eye (Lond). 2023 Jul;37(10):2020-2025. doi: 10.1038/s41433-022-02058-7. Epub 2022 Apr 19.
- Derived from this study: PubMed 30946887Wykoff CC, Shah C, Dhoot D, Coleman HR, Thompson D, Du W, Baker K, Vitti R, Berliner AJ, Metzig C, Saroj N. Longitudinal Retinal Perfusion Status in Eyes with Diabetic Macular Edema Receiving Intravitreal Aflibercept or Laser in VISTA Study. Ophthalmology. 2019 Aug;126(8):1171-1180. doi: 10.1016/j.ophtha.2019.03.040. Epub 2019 Apr 1.
- Derived from this study: PubMed 29785301Midena E, Gillies M, Katz TA, Metzig C, Lu C, Ogura Y. Impact of Baseline Central Retinal Thickness on Outcomes in the VIVID-DME and VISTA-DME Studies. J Ophthalmol. 2018 Mar 29;2018:3640135. doi: 10.1155/2018/3640135. eCollection 2018.
- Derived from this study: PubMed 29051325Staurenghi G, Feltgen N, Arnold JJ, Katz TA, Metzig C, Lu C, Holz FG; VIVID-DME and VISTA-DME study investigators. Impact of baseline Diabetic Retinopathy Severity Scale scores on visual outcomes in the VIVID-DME and VISTA-DME studies. Br J Ophthalmol. 2018 Jul;102(7):954-958. doi: 10.1136/bjophthalmol-2017-310664. Epub 2017 Oct 19.
- Derived from this study: PubMed 28006063Wykoff CC, Marcus DM, Midena E, Korobelnik JF, Saroj N, Gibson A, Vitti R, Berliner AJ, Williams Liu Z, Zeitz O, Metzig C, Schmelter T, Heier JS. Intravitreal Aflibercept Injection in Eyes With Substantial Vision Loss After Laser Photocoagulation for Diabetic Macular Edema: Subanalysis of the VISTA and VIVID Randomized Clinical Trials. JAMA Ophthalmol. 2017 Feb 1;135(2):107-114. doi: 10.1001/jamaophthalmol.2016.4912.
- Derived from this study: PubMed 27847634Ziemssen F, Schlottman PG, Lim JI, Agostini H, Lang GE, Bandello F. Initiation of intravitreal aflibercept injection treatment in patients with diabetic macular edema: a review of VIVID-DME and VISTA-DME data. Int J Retina Vitreous. 2016 Jul 11;2:16. doi: 10.1186/s40942-016-0041-z. eCollection 2016.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Clinical Trial Management study director
Regeneron Pharmaceuticals
51 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing Intravitreal Aflibercept Injection (IAI; EYLEA®; BAY86-5321) and Macular Laser Photocoagulation in people with Diabetic Macular Edema, run by Regeneron Pharmaceuticals at 51 sites in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 30 May 2016. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 51 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 20 Apr 2015). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Change From Baseline in Best Corrected Visual Acuity (BCVA) as Measured by Early Treatment Diabetic Retinopathy Study (ETDRS) Letter Score at Week 52 - Last Observation Carried Forward (LOCF) (time frame: Baseline and Week 52). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT01363440, which also lists 8 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 30 May 2016.