Diabetic Macular EdemaPhase 2NCT01945866
Phase II Combination Steroid and Anti-VEGF for Persistent DME
A Phase 2 study testing intravitreal ranibizumab 0.3 mg and dexamethasone intravitreal implant in people with Diabetic Macular Edema, run by Jaeb Center for Health Research at 56 sites in United States.
Trial summary
Although anti-vascular endothelial growth factor (VEGF) therapy is generally effective as treatment for center-involved diabetic macular edema (DME), a substantial proportion of anti-VEGF-treated eyes with DME do not achieve vision of 20/20 or complete resolution of retinal thickening. 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 ranibizumab 0.3 mg and dexamethasone intravitreal implant
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 129 participants
- Where
- 56 sitesUnited States
- Study dates
- Feb 2014to 5 Jun 2017
- Phase
- Phase 2
- 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
- Age ≥ 18 years i) Individuals <18 years old are not being included because DME is so rare in this age group that the diagnosis of DME may be questionable.
- Diagnosis of diabetes mellitus (type 1 or type 2)
- Any one of the following will be considered to be sufficient evidence that diabetes is present:
- Current regular use of insulin for the treatment of diabetes
- Current regular use of oral anti-hyperglycemia agents for the treatment of diabetes
- Documented diabetes by ADA (American Diabetes Association) and/or WHO (World Health Organization) criteria
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- At least one eye meets the study eye criteria listed below.
- Fellow eye (if not a study eye) meets criteria.
- Able and willing to provide informed consent.
- Meets all of the following ocular criteria in at least the one eye:
- At least 3 injections of anti-VEGF drug (ranibizumab, bevacizumab, or aflibercept) within the prior 20 weeks.
- Visual acuity letter score in study eye ≤ 78 and ≥24 (approximate Snellen equivalent 20/32 to 20/320).
- On clinical exam, definite retinal thickening due to DME involving the center of the macula.
- OCT CSF thickness, within 8 days of enrollment:
- On Zeiss Cirrus ≥ 290 microns in women; ≥ 305 in men ii) On Heidelberg Spectralis: ≥ 305 microns in women; ≥ 320 in men
- Media clarity, pupillary dilation, and individual cooperation sufficient for adequate OCTs.
Who cannot join
- An individual is not eligible if any of the following exclusion criteria are present:
- 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).
- Initiation of intensive insulin treatment (a pump or multiple daily injections) within 4 months prior to randomization or plans to do so in the next 4 months.
- Participation in an investigational trial within 30 days of enrollment that involved treatment with any drug that has not received regulatory approval for the indication being studied. Note: study participants cannot receive another investigational drug while participating in the study.
- Known allergy to any component of the study drugs (including povidone iodine prep).
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- Blood pressure > 180/110 (systolic above 180 OR diastolic above 110). If blood pressure is brought below 180/110 by anti-hypertensive treatment, the individual can become eligible.
- Myocardial infarction, other acute cardiac event requiring hospitalization, stroke, transient ischemic attack, or treatment for acute congestive heart failure within 1 month prior to enrollment.
- Systemic steroid, anti-VEGF or pro-VEGF treatment within 4 months prior to enrollment or anticipated use during the study. These drugs cannot be used during the study.
- For women of child-bearing potential: pregnant or lactating or intending to become pregnant within the next 9 months. Women who are potential study participants should be questioned about the potential for pregnancy. Investigator judgment is used to determine when a pregnancy test is needed.
- Individual is expecting to move out of the area of the clinical center to an area not covered by another clinical center during the next 9 months.
- The following exclusions apply to the study eye only (i.e., they may be present for the non-study eye unless otherwise specified):
- Macular edema is considered to be due to a cause other than DME. An eye should not be considered eligible if: (1) the macular edema is considered to be related to ocular surgery such as cataract extraction or (2) clinical exam and/or OCT suggest that vitreoretinal interface abnormalities (e.g., a taut posterior hyaloid or epiretinal membrane) are the primary cause of the 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, pigment abnormalities, dense subfoveal hard exudates, non-retinal condition, etc.).
- An ocular condition is present (other than DME) that, in the opinion of the investigator, might affect macular edema or alter visual acuity during the course of the study (e.g., vein occlusion, uveitis or other ocular inflammatory disease, neovascular glaucoma, etc.).
- Substantial posterior capsule opacity that, in the opinion of the investigator, is likely to be decreasing visual acuity by 3 lines or more (i.e., opacity would be reducing acuity to 20/40 or worse if eye was otherwise normal).
- History of intravitreal anti-VEGF drug within 21 days prior to enrollment.
- History of intravitreal or peribulbar corticosteroids within 3 months prior to enrollment.
- History of macular laser photocoagulation within 4 months prior to enrollment.
- History of panretinal (scatter) photocoagulation (PRP) within 4 months prior to enrollment or anticipated need for PRP in the 6 months following enrollment into run-in phase.
- Any history of vitrectomy.
Trial locations and contacts
56 sites in 1 country.
56 sites in 1 country
United States56 sites
Southwest Retina Specialists
Amarillo, Texas, 79106
Southeast Retina Center, P.C.
Augusta, Georgia, 30909
Austin Retina Associates
Austin, Texas, 78705
Retina Research Center
Austin, Texas, 78705
Elman Retina Group, P.A.
Baltimore, Maryland, 21237
Retina Associates of Cleveland, Inc.
Beachwood, Ohio, 44122
National Eye Institute/National Institutes of Health
Bethesda, Maryland, 20892-2510
Retina-Vitreous Associates Medical Group
Beverly Hills, California, 90211
Ophthalmic Consultants of Boston
Boston, Massachusetts, 02114
Joslin Diabetes Center
Boston, Massachusetts, 02215
Charlotte Eye Ear Nose and Throat Assoc, PA
Charlotte, North Carolina, 28210
Case Western Reserve University
Cleveland, Ohio, 44106
Medical Associates Clinic, P.C.
Dubuque, Iowa, 52002
National Ophthalmic Research Institute
Fort Myers, Florida, 33912
Retina Vitreous Center
Grand Blanc, Michigan, 48439
Retina Specialists of Michigan
Grand Rapids, Michigan, 49525
Retina and Vitreous of Texas
Houston, Texas, 77025
Baylor Eye Physicians and Surgeons
Houston, Texas, 77030
Retina Consultants of Houston, PA
Houston, Texas, 77030
Atlantis Eye Care
Huntington Beach, California, 92647
Raj K. Maturi, M.D., P.C.
Indianapolis, Indiana, 46290
University of Florida College of Med., Department of Ophthalmology
Jacksonville, Florida, 32209
Southeastern Retina Associates, P.C.
Knoxville, Tennessee, 37909
Central Florida Retina Institute
Lakeland, Florida, 33805
Virginia Retina Center
Leesburg, Virginia, 20176
Loma Linda University Health Care, Dept. of Ophthalmology
Loma Linda, California, 92354
Texas Retina Associates
Lubbock, Texas, 79424
University of Wisconsin-Madison, Dept of Ophthalmology/Retina Service
Madison, Wisconsin, 53705
Valley Retina Institute
McAllen, Texas, 78503
Retina Center, PA
Minneapolis, Minnesota, 55404
Northern California Retina Vitreous Associates
Mountain View, California, 94040
Retina Group of New England
New London, Connecticut, 06320
MaculaCare
New York, New York, 10021
The Institute of Ophthalmology and Visual Science (IOVS)
Newark, New Jersey, 07103
New England Retina Associates
Norwich, Connecticut, 06360
Ocala Eye Retina Consultants
Ocala, Florida, 34474
University of Pennsylvania Scheie Eye Institute
Philadelphia, Pennsylvania, 19104
Retina Northwest, PC
Portland, Oregon, 97210
Casey Eye Institute
Portland, Oregon, 97239
Retina Consultants of Southern California
Redlands, California, 92374
Retina Institute of Virginia
Richmond, Virginia, 23235
Retina Associates of Western New York
Rochester, New York, 14618
University of Rochester
Rochester, New York, 14642
Retinal Consultants Medical Group, Inc.
Sacramento, California, 95841
Retina Associates of Utah, P.C.
Salt Lake City, Utah, 84107
Retinal Consultants of San Antonio
San Antonio, Texas, 78240
Thomas Eye Group
Sandy Springs, Georgia, 30328
California Retina Consultants
Santa Barbara, California, 93103
Sarasota Retina Institute
Sarasota, Florida, 34239
University of Washington Medical Center
Seattle, Washington, 98195
Retina Associates, P.A.
Shawnee Mission, Kansas, 66204
Spokane Eye Clinic
Spokane, Washington, 99204
The Retina Institute
St Louis, Missouri, 63128
Retina Associates of Florida, P.A.
Tampa, Florida, 33609
Bay Area Retina Associates
Walnut Creek, California, 94598
Wolfe Eye Clinic
West Des Moines, Iowa, 50266
About this study
Official title: Short-term Evaluation of Combination Corticosteroid+Anti-VEGF Treatment for Persistent Central-Involved Diabetic Macular Edema Following Anti-VEGF Therapy
Although anti-vascular endothelial growth factor (VEGF) therapy is generally effective as treatment for center-involved diabetic macular edema (DME), a substantial proportion of anti-VEGF-treated eyes with DME do not achieve vision of 20/20 or complete resolution of retinal thickening. Indeed, over 50% of ranibizumab-treated eyes did not achieve a 2 or more line improvement in visual acuity from baseline at 2 years in Protocol I, a previous DRCR.net (Diabetic Retinopathy Clinical Research Network) study. Furthermore, 27% of ranibizumab-treated eyes still had central subfield (CSF) thickness on time-domain optical coherence tomography (OCT) ≥ 300 at 1 year, and more than 40% of ranibizumab-treated eyes did not achieve complete resolution of retinal thickening (< 250 microns) by 2 years. Thus, there is a need for alternative or additional treatments that will improve vision by reducing retinal edema in eyes with persistent DME following previous anti-VEGF therapy. Intravitreal steroid is not as efficacious as ranibizumab in eyes with DME overall, but it has been shown to have a positive effect for DME in some eyes and might add benefit in eyes that are already receiving anti-VEGF.
The main objective of this study is to assess the short-term effects of combination steroid+anti-VEGF therapy on visual acuity and retinal thickness on OCT in comparison with that of continued anti-VEGF therapy alone in eyes with persistent central-involved DME and visual acuity impairment despite previous anti-VEGF treatment. This study will provide important information for the design of a future confirmatory phase III clinical trial on the efficacy of combination steroid and anti-VEGF in eyes with persistent DME and vision impairment following previous anti-VEGF therapy. The primary outcome for efficacy will be the mean change in visual acuity at 24 weeks.
Each study eye is required to complete a 12-week run-in phase. The run-in phase will identify study eyes that truly have persistent DME despite anti-VEGF therapy by requiring an additional 3 injections while also collecting standardized visual acuity and OCT measurements. At the enrollment, 4-week and 8-week visits of the run-in phase, enrolled eyes will receive an intravitreal injection of ranibizumab 3mg. Then at the 12-week run-in visit, if the eye still has persistent DME, it will be randomized to receive either intravitreal sham+intravitreal ranibizumab 0.3 or intravitreal dexamethasone+intravitreal ranibizumab 0.3 injections. The randomized study duration is 24 week, during which a protocol visit takes place every month. The combination injections of sham+ranibizumab or dexamethasone +ranibizumab will be given at the randomization visit (baseline) and at the 12-week visit after randomization. In between, an intravitreal injection of ranibizumab only will be given to study eyes at the 4, 8, 16 and 20 week visits.
- Conditions
- Diabetic Macular Edema
- Being tested
- intravitreal ranibizumab 0.3 mg, dexamethasone intravitreal implant, Sham injection
- Keywords
- Diabetic Macular Edema, Anti-vascular endothelial growth factor, Dexamethasone Intravitreal implant, Ranibizumab intravitreal injection
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
intravitreal ranibizumab 0.3 mgDrug
Also called Lucentis
Intravitreal injection of 0.3mg ranibizumab performed on the day of randomization and up to every 4 weeks using defined treatment criteria
dexamethasone intravitreal implantDrug
Also called Ozurdex
The dexamethasone intravitreal injection will be given within 0-8 days of the ranibizumab injection. If defined criteria are met, a second dexamethasone injection in combination with intravitreal ranibizumab (within 0-8 days) will be given at the 12 week visit. If the injections are given consecutively on the same day, the ranibizumab injection must be given first.
Sham injectionProcedure or surgery
No injection is given. It is a sham injection to keep the participant masked. The sham injection will be given within 0-8 days of the ranibizumab injection. If the injections are given consecutively on the same day, the sham injection must be given first.
| Study group | Role | What they receive |
|---|---|---|
| Sham + intravitreal ranibizumab 0.3 mg | Active comparator | Intravitreal ranibizumab will be given on the day of randomization. The sham injection will be given within 0-8 days of the ranibizumab injection. If the injections are given consecutively on the same day, the sham injection must be given first. Follow-up intravitreal injections of ranibizumab will be given up to every 4 weeks using defined treatment criteria. Receives: Drug: intravitreal ranibizumab 0.3 mg; Procedure: Sham injection |
| Intravitreal dexamethasone+intravitreal ranibizumab 0.3mg | Experimental | The initial intravitreal ranibizumab injection will be given on the day of randomization. The dexamethasone intravitreal injection will be given within 0-8 days of the ranibizumab injection. If defined criteria are met, a second dexamethasone injection in combination with intravitreal ranibizumab (within 0-8 days) will be given at the 12 week visit. If the injections are given consecutively on the same day, the ranibizumab injection must be given first. Receives: Drug: intravitreal ranibizumab 0.3 mg; Drug: dexamethasone intravitreal implant |
What is being measured
The primary outcome is the main question the study is designed to answer.
Mean Change in Visual Acuity Letter Score
At 24 weeks after randomization, mean change in visual acuity letter score, adjusted for visual acuity at time of randomization
Measured: 24 weeks after randomization
Secondary outcomes (6)
At 24 Weeks After Randomization, Number of Eyes With at Least 10 and at Least 15 Letter Gain (Increase) or Loss (Decrease) in E-ETDRS Letter Score Visual Acuity.
ETDRS (Early Treatment Diabetic Retinopathy Study)
Measured: 24 weeks weeks after randomization
Visual Acuity Area Under the Curve (AUC) Between Randomization and 24 Weeks
Only included participants who completed the 24-week visit. Time points for which data were collected for this analysis include 0, 4 8,12, 16, 20, and 24 weeks post randomization.
Measured: 24 weeks after randomization
Mean Change in OCT CSF Thickness, Adjusted for Thickness at Time of Randomization
Change in optical coherence tomography (OCT) central subfield thickness (in microns) was truncated to 3 standard deviations from the mean [-372, +201] (calculated using observed changes at 24 weeks combining all treatment groups), to minimize the effect of outliers. Two values were truncated in the sham + ranibizumab group: one on the negative end, and one on the positive end.
Measured: 24 weeks after randomization
Number of Eyes With ≥1 and ≥2 logOCT Step Gain or Loss in CSF Thickness
Change in optical coherence tomography (OCT) central subfield (CSF) thickness (in microns) was truncated to 3 standard deviations from the mean [-372, +201] (calculated using observed changes at 24 weeks combining all treatment groups), to minimize the effect of outliers. Two values were truncated in the sham + ranibizumab group: one on the negative end, and one on the positive end.
Measured: 24 weeks after randomization
Eyes With OCT CSF Thickness < the Gender-specific Spectral Domain OCT Equivalent of 250 Microns on Zeiss Stratus
Gender and OCT machine-specific values for OCT central subfield thickness (in microns) are defined as: <290 in women and <305 in men in Zeiss Cirrus; <305 in women and <320 in men in Heidelberg Spectralis
Measured: 24 weeks after randomization
OCT CSF Thickness Area Under the Curve Between Randomization and 24 Weeks
Including participants who completed the 24-week visit. Time points for which data were collected for this analysis include 0, 4 8,12, 16, 20, and 24 weeks post randomization.
Measured: 24 weeks after randomization
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted19 Sep 2013 (estimated)
- Study startFeb 2014
- Primary completion5 Jun 2017
- Study completion5 Jun 2017
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 (1)Papers the sponsor has linked to this study.
- Other trials for Diabetic Macular EdemaStudies of the same condition, open and under way.
- 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 2
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Outcomes assessor
- Enrolment
- 129 participants (actual)
Sponsor and investigators
- Lead sponsor
- Jaeb Center for Health Research
- Sponsor type
- University, hospital or other
- Collaborators
- Allergan, Genentech, Inc., National Eye Institute (NEI)
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01945866
- Sponsor's protocol ID
- DRCR.net Protocol U
- Other IDs
- EY14231, EY23207, EY18817
- Status last verified
- Sep 2018
- First submitted
- 12 Sep 2013
- Last updated
- 25 Sep 2018
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- Yes
Publications
Maturi RK, Glassman AR, Liu D, Beck RW, Bhavsar AR, Bressler NM, Jampol LM, Melia M, Punjabi OS, Salehi-Had H, Sun JK; Diabetic Retinopathy Clinical Research Network. Effect of Adding Dexamethasone to Continued Ranibizumab Treatment in Patients With Persistent Diabetic Macular Edema: A DRCR Network Phase 2 Randomized Clinical Trial. JAMA Ophthalmol. 2018 Jan 1;136(1):29-38. doi: 10.1001/jamaophthalmol.2017.4914.
PubMed 29127949
Study at a glance
From the registry record, last updated by the sponsor on 25 Sep 2018. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Short-term Evaluation of Combination Corticosteroid+Anti-VEGF Treatment for Persistent Central-Involved Diabetic Macular Edema Following Anti-VEGF Therapy
- ClinicalTrials.gov ID
- NCT01945866
- Acronym / sponsor ID
- DRCR.net Protocol U
- Conditions
- Diabetic Macular Edema
- Keywords
- Diabetic Macular Edema, Anti-vascular endothelial growth factor, Dexamethasone Intravitreal implant, Ranibizumab intravitreal injection
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 129 participants (actual)
- Lead sponsor
- Jaeb Center for Health ResearchUniversity, hospital or other
- Collaborators
- Allergan, Genentech, Inc., National Eye Institute (NEI)
- Study start
- Feb 2014 (actual)
- Primary completion
- 5 Jun 2017 (actual)
- Study completion
- 5 Jun 2017 (actual)
- First posted
- 19 Sep 2013 (estimated)
- Results
- Posted 25 Sep 2018
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Although anti-vascular endothelial growth factor (VEGF) therapy is generally effective as treatment for center-involved diabetic macular edema (DME), a substantial proportion of anti-VEGF-treated eyes with DME do not achieve vision of 20/20 or complete resolution of retinal thickening. Indeed, over 50% of ranibizumab-treated eyes did not achieve a 2 or more line improvement in visual acuity from baseline at 2 years in Protocol I, a previous DRCR.net (Diabetic Retinopathy Clinical Research Network) study. Furthermore, 27% of ranibizumab-treated eyes still had central subfield (CSF) thickness on time-domain optical coherence tomography (OCT) ≥ 300 at 1 year, and more than 40% of ranibizumab-treated eyes did not achieve complete resolution of retinal thickening (< 250 microns) by 2 years. Thus, there is a need for alternative or additional treatments that will improve vision by reducing retinal edema in eyes with persistent DME following previous anti-VEGF therapy. Intravitreal steroid is not as efficacious as ranibizumab in eyes with DME overall, but it has been shown to have a positive effect for DME in some eyes and might add benefit in eyes that are already receiving anti-VEGF.
The main objective of this study is to assess the short-term effects of combination steroid+anti-VEGF therapy on visual acuity and retinal thickness on OCT in comparison with that of continued anti-VEGF therapy alone in eyes with persistent central-involved DME and visual acuity impairment despite previous anti-VEGF treatment. This study will provide important information for the design of a future confirmatory phase III clinical trial on the efficacy of combination steroid and anti-VEGF in eyes with persistent DME and vision impairment following previous anti-VEGF therapy. The primary outcome for efficacy will be the mean change in visual acuity at 24 weeks.
Each study eye is required to complete a 12-week run-in phase. The run-in phase will identify study eyes that truly have persistent DME despite anti-VEGF therapy by requiring an additional 3 injections while also collecting standardized visual acuity and OCT measurements. At the enrollment, 4-week and 8-week visits of the run-in phase, enrolled eyes will receive an intravitreal injection of ranibizumab 3mg. Then at the 12-week run-in visit, if the eye still has persistent DME, it will be randomized to receive either intravitreal sham+intravitreal ranibizumab 0.3 or intravitreal dexamethasone+intravitreal ranibizumab 0.3 injections. The randomized study duration is 24 week, during which a protocol visit takes place every month. The combination injections of sham+ranibizumab or dexamethasone +ranibizumab will be given at the randomization visit (baseline) and at the 12-week visit after randomization. In between, an intravitreal injection of ranibizumab only will be given to study eyes at the 4, 8, 16 and 20 week visits.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Sham + intravitreal ranibizumab 0.3 mg | Active comparator | Drug: intravitreal ranibizumab 0.3 mg, Procedure: Sham injectionIntravitreal ranibizumab will be given on the day of randomization. The sham injection will be given within 0-8 days of the ranibizumab injection. If the injections are given consecutively on the same day, the sham injection must be given first. Follow-up intravitreal injections of ranibizumab will be given up to every 4 weeks using defined treatment criteria. |
| Intravitreal dexamethasone+intravitreal ranibizumab 0.3mg | Experimental | Drug: intravitreal ranibizumab 0.3 mg, Drug: dexamethasone intravitreal implantThe initial intravitreal ranibizumab injection will be given on the day of randomization. The dexamethasone intravitreal injection will be given within 0-8 days of the ranibizumab injection. If defined criteria are met, a second dexamethasone injection in combination with intravitreal ranibizumab (within 0-8 days) will be given at the 12 week visit. If the injections are given consecutively on the same day, the ranibizumab injection must be given first. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (16 listed)
- Age ≥ 18 years i) Individuals <18 years old are not being included because DME is so rare in this age group that the diagnosis of DME may be questionable.
- Diagnosis of diabetes mellitus (type 1 or type 2)
- Any one of the following will be considered to be sufficient evidence that diabetes is present:
- At least one eye meets the study eye criteria listed below.
- Fellow eye (if not a study eye) meets criteria.
Key exclusion criteria (21 listed)
- 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).
- Initiation of intensive insulin treatment (a pump or multiple daily injections) within 4 months prior to randomization or plans to do so in the next 4 months.
- Participation in an investigational trial within 30 days of enrollment that involved treatment with any drug that has not received regulatory approval for the indication being studied. Note: study participants cannot receive another investigational drug while participating in the study.
- Known allergy to any component of the study drugs (including povidone iodine prep).
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 ranibizumab 0.3 mgAlso: LucentisIntravitreal injection of 0.3mg ranibizumab performed on the day of randomization and up to every 4 weeks using defined treatment criteria | Drug | Intravitreal dexamethasone+intravitreal ranibizumab 0.3mg, Sham + intravitreal ranibizumab 0.3 mg |
| dexamethasone intravitreal implantAlso: OzurdexThe dexamethasone intravitreal injection will be given within 0-8 days of the ranibizumab injection. If defined criteria are met, a second dexamethasone injection in combination with intravitreal ranibizumab (within 0-8 days) will be given at the 12 week visit. If the injections are given consecutively on the same day, the ranibizumab injection must be given first. | Drug | Intravitreal dexamethasone+intravitreal ranibizumab 0.3mg |
| Sham injectionNo injection is given. It is a sham injection to keep the participant masked. The sham injection will be given within 0-8 days of the ranibizumab injection. If the injections are given consecutively on the same day, the sham injection must be given first. | Procedure or surgery | Sham + intravitreal ranibizumab 0.3 mg |
Primary outcome
Mean Change in Visual Acuity Letter Score
Time frame: 24 weeks after randomization
At 24 weeks after randomization, mean change in visual acuity letter score, adjusted for visual acuity at time of randomization
6 secondary outcomes
At 24 Weeks After Randomization, Number of Eyes With at Least 10 and at Least 15 Letter Gain (Increase) or Loss (Decrease) in E-ETDRS Letter Score Visual Acuity.
Time frame: 24 weeks weeks after randomization
Visual Acuity Area Under the Curve (AUC) Between Randomization and 24 Weeks
Time frame: 24 weeks after randomization
Mean Change in OCT CSF Thickness, Adjusted for Thickness at Time of Randomization
Time frame: 24 weeks after randomization
Number of Eyes With ≥1 and ≥2 logOCT Step Gain or Loss in CSF Thickness
Time frame: 24 weeks after randomization
Eyes With OCT CSF Thickness < the Gender-specific Spectral Domain OCT Equivalent of 250 Microns on Zeiss Stratus
Time frame: 24 weeks after randomization
OCT CSF Thickness Area Under the Curve Between Randomization and 24 Weeks
Time frame: 24 weeks after randomization
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 25 Sep 2018.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Results publication: PubMed 29127949Maturi RK, Glassman AR, Liu D, Beck RW, Bhavsar AR, Bressler NM, Jampol LM, Melia M, Punjabi OS, Salehi-Had H, Sun JK; Diabetic Retinopathy Clinical Research Network. Effect of Adding Dexamethasone to Continued Ranibizumab Treatment in Patients With Persistent Diabetic Macular Edema: A DRCR Network Phase 2 Randomized Clinical Trial. JAMA Ophthalmol. 2018 Jan 1;136(1):29-38. doi: 10.1001/jamaophthalmol.2017.4914.
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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.
The record lists no contact. Use the official record to reach the sponsor.
56 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing intravitreal ranibizumab 0.3 mg and dexamethasone intravitreal implant in people with Diabetic Macular Edema, run by Jaeb Center for Health Research at 56 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 16 inclusion and 21 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 25 Sep 2018. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 56 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
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 25 Sep 2018). 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?
Mean Change in Visual Acuity Letter Score (time frame: 24 weeks after randomization). 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 NCT01945866, which also lists 1 linked publication.
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 25 Sep 2018.