Macular Edema Ranibizumab v. Intravitreal Anti-inflammatory Therapy Trial
MERIT
3 other identifiers
interventional
194
5 countries
33
Brief Summary
The Macular Edema Ranibizumab v. Intravitreal anti-inflammatory Therapy (MERIT) Trial will compare the relative efficacy and safety of intravitreal methotrexate, intravitreal ranibizumab, and the intravitreal dexamethasone implant for the treatment of uveitic macular edema persisting or reoccurring after an intravitreal corticosteroid injection. MERIT is a parallel design (1:1:1), randomized comparative trial with an anniversary close-out after 6 months of follow-up. The primary outcome is percent change in central subfield thickness from the baseline OCT measurement to the 12 week visit.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_3
Started Mar 2017
Longer than P75 for phase_3
33 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
December 3, 2015
CompletedFirst Posted
Study publicly available on registry
December 7, 2015
CompletedStudy Start
First participant enrolled
March 9, 2017
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 27, 2021
CompletedStudy Completion
Last participant's last visit for all outcomes
February 2, 2022
CompletedResults Posted
Study results publicly available
July 10, 2023
CompletedJuly 10, 2023
June 1, 2023
4.6 years
December 3, 2015
April 6, 2023
June 20, 2023
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Proportion of Baseline Central Subfield Thickness Observed at 12 Weeks
The primary outcome is the change in central subfield thickness from baseline to 12 weeks measured on a relative scale as the the proportion of the baseline central subfield thickness. The proportion of baseline subfield thickness is estimated by a mixed effect model that includes time points for baseline, week 4, week 8, and week 12 and the treatment group. The treatment effect is the interaction (product) of time point and treatment. Contrasts of the model parameter estimates were used to calculate the change from baseline to week 12 and the comparison between treatment groups. Values less than 1 indicate a decrease in retinal thickness with lower values indicating greater decreases (improvement).The OCT outcomes were measured by masked readers. The 12-week visit was chosen as the time to assess the primary outcome because of the ranibizumab treatment schedule and the peak effect time for dexamethasone
At 12-week visit
Study Arms (3)
Dexamethasone intravitreal implant 0.7mg
ACTIVE COMPARATORParticipants were randomized to a treatment group. A participant may have 1 or 2 eyes with macular edema (eligible eyes) receiving the same treatment. Eligible eye(s) treated at study visit M01 (week 0). Retreatment required at study visit M03 (8 weeks) if re-treatment criteria met. Retreatment permitted at later time points if retreatment criteria met. Re-treatment criteria: 1. Central subfield thickness greater than 1.1X upper limit of normal (330 μm for Zeiss and Topcon Spectral Domain (SD) Optical Coherence Tomography (OCT) and 352 μm for Heidelberg OCT) and/or cystoid space(s) within 1 mm central subfield. 2. IOP of \<25 mm Hg (treatment with ≤3 IOP-lowering agents permitted) Minimum time between treatments: minimum target is 8 weeks after last injection but re-injection permitted as early as 51 days after last injection;
Intravitreal methotrexate 400µg in 0.1mL
ACTIVE COMPARATORParticipants were randomized to a treatment group. A participant may have 1 or 2 eyes with macular edema (eligible eyes) receiving the same treatment. Eligible eye(s) treated at study visit M01 (week 0). Retreatment required at M02 (4 weeks) and M03 (8 weeks) if retreatment criteria met. Retreatment permitted at later time points if retreatment criteria met. Minimum time between treatments: minimum target is 4 weeks after last injection but re-injection permitted as early as 23 days after last injection.
Intravitreal ranibizumab 0.5mg in 0.05mL
ACTIVE COMPARATORParticipants were randomized to a treatment group. A participant may have 1 or 2 eyes with macular edema (eligible eyes) receiving the same treatment. Eligible eye(s) treated at study visits M01 (week 0), M02 (4 weeks), and M03 (8 weeks). Retreatment permitted at M04 (12 weeks) and at later time points if retreatment criteria met. Minimum time between treatments: minimum target is 4 weeks after last injection but re-injection permitted as early as 23 days after last injection. Re-treatment permitted at later time points if re-treatment criteria met.
Interventions
Standard preparation as described for intravitreal injections.
Intravitreal Methotrexate 400 µg injection procedures should be carried out under controlled aseptic conditions which include the use of sterile gloves and a sterile eyelid speculum (or equivalent). Adequate anesthesia and a broad-spectrum microbicide such as betadine, applied to the periocular skin, eyelid and ocular surface are required prior to the injection.
Intravitreal Ranibizumab 0.5 mg injection procedures should be carried out under controlled aseptic conditions which include the use of sterile gloves and a sterile eyelid speculum (or equivalent). Adequate anesthesia and a broad-spectrum microbicide such as betadine, applied to the periocular skin, eyelid and ocular surface are required prior to the injection.
Eligibility Criteria
You may qualify if:
- years of age or older;
- Inactive or minimally active non-infectious anterior, intermediate, posterior or panuveitis, as defined by the Standardization of Uveitis Nomenclature (SUN) Working Group criteria as ≤ 0.5+ anterior chamber cells, ≤ 0.5+ vitreous haze grade and no active retinal/choroidal lesions for a minimum of 4 weeks;
- Macular edema (ME) defined as the presence of macular thickness greater than the normal range for the OCT machine being used (see cut points below), regardless of the presence of cysts, following an intravitreal corticosteroid injection (≥ 4 weeks following intravitreal triamcinolone injection or ≥ 12 weeks following intravitreal dexamethasone implant injection);
- Greater than 300 μm for Zeiss Cirrus Greater than 320 μm for Heidelberg Spectralis Greater than 300 μm for Topcon SD OCT
- Baseline fluorescein angiogram that, as assessed by the study ophthalmologist, is gradable for degree of leakage in the central subfield;
- Best corrected visual acuity (BCVA) 5/200 or better;
- Baseline intraocular pressure \> 5 mm Hg and ≤ 21 mm Hg (current use of ≤3 intraocular pressure-lowering medications and/or prior glaucoma surgery are acceptable (Note: combination medications, e.g., Combigan, are counted as two IOP-lowering medications);
- Media clarity and pupillary dilation sufficient to allow OCT testing and assessment of the fundus.
You may not qualify if:
- History of infectious uveitis in either eye;
- History of keratitis (with the exception of keratitis due to dry eye) in either eye;
- History of central serous retinopathy in either eye;
- Active infectious conjunctivitis in either eye;
- Oral prednisone dose \> 10 mg per day (or of an alternative corticosteroid at a dose higher than that equipotent to prednisone 10 mg per day) OR oral prednisone dose ≤ 10 mg per day at baseline that has not been stable for at least 4 weeks (note: if patient is off of oral prednisone at baseline (M01 study visit) dose stability requirement for past 4 weeks does not apply);
- Systemic immunosuppressive drug therapy that has not been stable for at least 4 weeks (note: use of systemic methotrexate is acceptable as long as regimen has been stable for at least 4 weeks);
- Use of oral acetazolamide or other systemic carbonic anhydrase inhibitor at baseline;
- Known allergy or hypersensitivity to any component of the study drugs;
- For women of childbearing potential: pregnancy, breastfeeding, or a positive pregnancy test; unwilling to practice an adequate birth control method (abstinence, combination barrier and spermicide, or hormonal) for duration of trial;
- History of infectious endophthalmitis;
- History of severe glaucoma as defined by optic nerve damage (cup/disc ratio of ≥ 0.9 or any notching of optic nerve to the rim);
- History of active noninfectious scleritis in past 12 months (Note: History of noninfectious scleritis is acceptable if the last episode of active scleritis resolved at least 12 months prior to enrollment);
- Presence of an epiretinal membrane noted clinically or by OCT that per the judgment of study ophthalmologist may be significant enough to limit improvement of ME (i.e., causing substantial wrinkling of the retinal surface);
- Torn or ruptured posterior lens capsule
- Presence of silicone oil;
- +3 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- JHSPH Center for Clinical Trialslead
- National Eye Institute (NEI)collaborator
Study Sites (33)
Jules Stein Eye Institute, UCLA
Los Angeles, California, 90095, United States
University of California, San Francisco
San Francisco, California, 94143, United States
Anne Bates Leach Eye Hospital, University of Miami Miller School of Medicine
Miami, Florida, 33136, United States
Emory University
Atlanta, Georgia, 30322, United States
Northwestern University
Chicago, Illinois, 60611, United States
Rush University Medical Center
Chicago, Illinois, 60612, United States
University of Iowa
Iowa City, Iowa, 52242, United States
University of Louisville
Louisville, Kentucky, 40202, United States
Johns Hopkins University
Baltimore, Maryland, 21287, United States
Massachusetts Eye and Ear Infirmary
Boston, Massachusetts, 02114, United States
Ophthalmic Consultants of Boston
Boston, Massachusetts, 02114, United States
Kellogg Eye Center, University of Michigan
Ann Arbor, Michigan, 48105, United States
Duke Eye Center, Duke University
Durham, North Carolina, 27710, United States
Scheie Eye Institute, University of Pennsylvania
Philadelphia, Pennsylvania, 19104, United States
MidAtlanitc Retina, Wills Eye Hospital
Philadelphia, Pennsylvania, 19107, United States
University of Pittsburgh Medical Center
Pittsburgh, Pennsylvania, 15213, United States
Vanderbilt
Nashville, Tennessee, 37232, United States
Retinal Consultants of Houston
Houston, Texas, 77030, United States
John A. Moran Eye Center, University of Utah
Salt Lake City, Utah, 84132, United States
Royal Victorian Eye and Ear Hospital
East Melbourne, Victoria, Australia
McGill University
Montreal, Quebec, H4A 3S5, Canada
LV Prasad Eye Institute - Bhubaneswar
Bhubaneswar, Odisha, India
Medical and Vision Research Foundation
Chennai, Tamil Nadu, India
LV Prasad Eye Institute - Hyderabad
Hyderabad, Telangana, 500034, India
Advanced Eye Center, Post Graduate Institute of Medical Education and Research
Chandigarh, India
University Hospitals Bristol NHS Foundation Trust
Bristol, England, BS1 2LX, United Kingdom
Cambridge University Hospitals NHS Foundation Trust
Cambridge, England, CB2 0QQ, United Kingdom
University Hospitals of Leicester NHS Trust
Leicester, England, LE1 5WW, United Kingdom
Liverpool University Hospitals NHS Foundation Trust
Liverpool, England, L7 8XP, United Kingdom
Moorfields Eye Hospital NHS Foundation Trust
London, England, EC1V 2PD, United Kingdom
Manchester University NHS Foundation Trust
Manchester, England, M13 (WL, United Kingdom
University Hospitals Birmingham NHS Foundation Trust
Birmingham, B152WB, United Kingdom
Moorfields Eye Hospital
London, EC1V 9EL, United Kingdom
Related Publications (1)
Multicenter Uveitis Steroid Treatment Trial (MUST) Research Group, Writing Committee:; Acharya NR, Vitale AT, Sugar EA, Holbrook JT, Burke AE, Thorne JE, Altaweel MM, Kempen JH, Jabs DA. Intravitreal Therapy for Uveitic Macular Edema-Ranibizumab versus Methotrexate versus the Dexamethasone Implant: The MERIT Trial Results. Ophthalmology. 2023 Sep;130(9):914-923. doi: 10.1016/j.ophtha.2023.04.011. Epub 2023 Jun 13.
PMID: 37318415DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Douglas A Jabs, MD, MBA
- Organization
- Johns Hopkins Bloomberg School of Public Health
Study Officials
- STUDY CHAIR
Douglas A Jabs, MD, MBA
Center for Clinical Trials and Evidence Synthesis, JHU, Baltimore, MD
Publication Agreements
- PI is Sponsor Employee
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
December 3, 2015
First Posted
December 7, 2015
Study Start
March 9, 2017
Primary Completion
October 27, 2021
Study Completion
February 2, 2022
Last Updated
July 10, 2023
Results First Posted
July 10, 2023
Record last verified: 2023-06