Intravitreal KSI-101 for macular edema due to inflammation (PEAK)
Official title: A Randomized, Double-masked, Sham-controlled, Multicenter, Phase 3 Study to Evaluate the Efficacy and Safety of Intravitreal Tabirafusp Alfa (KSI-101) in Participants With Macular Edema Secondary to Inflammation (MESI) - PEAK
Run by Kodiak Sciences Inc · NCT06990399 · Data updated 2026-11-12
This trial will test whether injections of KSI-101 can reduce retinal swelling and improve vision in adults with macular edema caused by non-infectious inflammation.
Quick facts
| Phase | Phase 3 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 600 (estimated) |
| Sponsor | Kodiak Sciences Inc Industry-sponsored |
| Locations | 56 sites (Phoenix, Arizona and 55 other locations) |
| Status | Recruiting |
| Started | July 30, 2025 |
| Main results expected | April 2027 |
| Study ends | November 2027 |
| Registry record updated | May 18, 2026 |
| Trial ID | NCT06990399 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults with non-infectious intraocular inflammation and macular edema with CST ≥400 µm and BCVA between 25 and 70 ETDRS letters in the study eye are ideal candidates.
✕Probably not a fit
Patients whose macular edema is caused by diabetes, retinal vein occlusion, or wet AMD, or those with active ocular or periocular infection, are not expected to benefit from this study treatment.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This Phase 3 study gives intravitreal injections of KSI-101 or a sham procedure to participants with macular edema secondary to non-infectious intraocular inflammation. Participants must have a central subfield thickness of ≥400 µm on SD-OCT and best-corrected visual acuity between 25 and 70 ETDRS letters (about 20/40 to 20/320) in the study eye. The protocol compares changes in retinal thickness and visual acuity while closely monitoring ocular safety and signs of inflammation over the treatment period. The trial is being conducted at multiple U.S. eye centers, including sites in Arizona and California such as the UCLA Stein Eye Institute.
Why it matters
Potential benefit: If successful, KSI-101 could reduce retinal swelling and improve or stabilize vision for people with inflammatory macular edema.
How similar studies have gone: Intravitreal biologic injections have helped other types of macular edema, but KSI-101 is a newer agent now being tested in Phase 3 for inflammatory macular edema.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Macular Edema Secondary to Inflammation (MESI) with a central subfield thickness (CST) of ≥400 microns on SD-OCT in Study Eye. * Definitive presence of Intraretinal Fluid and/or Subretinal Fluid on SD-OCT in the Study Eye. * BCVA ETDRS score of ≥25 and ≤70 letters (between 20/40 and 20/320 Snellen equivalent) in the Study Eye. * Diagnosis of active or inactive non-infectious intraocular inflammation, acute or chronic in the Study Eye. Exclusion Criteria: * Macular Edema in the Study Eye secondary to diabetic retinopathy, RVO, or wAMD. * Active or suspected ocular or periocular infection in either eye. * Any history of or active occlusive retinal vasculitis in either eye.
Where it's running
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AZ Retina & Vitreous Consultants
Phoenix, Arizona, United States Recruiting -
Research Network Arizona
Scottsdale, Arizona, United States Recruiting -
California Retina Consultants (Bakersfield)
Bakersfield, California, United States Recruiting -
Global Research Management, Inc.
Glendale, California, United States Recruiting -
UCSD/Jacobs Retina Center
La Jolla, California, United States Recruiting -
UCLA Stein Eye Institute
Los Angeles, California, United States Recruiting
Show 44 more locations
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California Retina Consultants (Oxnard)
Oxnard, California, United States Recruiting -
California Eye Specialists Medical Group, Inc.
Pasadena, California, United States Recruiting -
California Eye Specialists Medical Group, Inc.
Redlands, California, United States Recruiting -
Retina Consultants of Southern California
Redlands, California, United States Recruiting -
Retinal Consultants Medical Group Inc
Sacramento, California, United States Recruiting -
Rocky Mountain Uveitis
Denver, Colorado, United States Recruiting -
Coastal Eye Surgeons
Greenwich, Connecticut, United States Recruiting -
Retina Consultants, PC
Manchester, Connecticut, United States Recruiting -
Retina Group of New England, PC
Waterford, Connecticut, United States Recruiting -
Retina Group of Florida (Ft. Lauderdale)
Fort Lauderdale, Florida, United States Recruiting -
Retina Vitreous Associates of Florida (St. Petersburg)
St. Petersburg, Florida, United States Recruiting -
Retina Associates, LTD
Elmhurst, Illinois, United States Recruiting -
Associated Vitreoretinal and Uveitis Consultants LLC
Carmel, Indiana, United States Recruiting -
Midwest Eye Institute
Carmel, Indiana, United States Recruiting -
Cumberland Valley Retina Consultants
Hagerstown, Maryland, United States Recruiting -
Ophthalmic Consultants of Boston
Boston, Massachusetts, United States Recruiting -
Retina Consultants of Minnesota
Saint Louis Park, Minnesota, United States Recruiting -
The Retina Institute
St Louis, Missouri, United States Recruiting -
St. Mary's Eye Surgery Center (Metropolitan Eye Research and Surgery Institute)
Palisades Park, New Jersey, United States Recruiting -
Retina Associates of New York, P.C.
New York, New York, United States Recruiting -
North Carolina Retina Associates (Cary)
Cary, North Carolina, United States Recruiting -
North Carolina Retina Associates (Wake Forest)
Wake Forest, North Carolina, United States Recruiting -
Ohio State University
Columbus, Ohio, United States Recruiting -
Cascade Medical Research Institute
Springfield, Oregon, United States Recruiting -
Erie Retina Research
Erie, Pennsylvania, United States Recruiting -
Charleston Neuroscience Institute, LLC (Charleston)
Charleston, South Carolina, United States Recruiting -
Palmetto Retina Center (West Columbia)
West Columbia, South Carolina, United States Recruiting -
Ophthalmology Ltd
Sioux Falls, South Dakota, United States Recruiting -
Tennessee Retina PC
Nashville, Tennessee, United States Recruiting -
Vanderbilt Eye Institute
Nashville, Tennessee, United States Recruiting -
Retina Research Institute of Texas
Abilene, Texas, United States Recruiting -
Austin Retina Associates, PLLC (Austin)
Austin, Texas, United States Recruiting -
Retina Consultants of Texas (Bellaire)
Bellaire, Texas, United States Recruiting -
Texas Retina Center
Houston, Texas, United States Recruiting -
Retina Consultants of Texas (Katy)
Katy, Texas, United States Recruiting -
Texas Retina Associates (Plano)
Plano, Texas, United States Recruiting -
Austin Retina Associates, PLLC (Round Rock)
Round Rock, Texas, United States Recruiting -
Retina Consultants of Texas (San Antonio)
San Antonio, Texas, United States Recruiting -
Retina Consultants of Texas (Woodlands)
The Woodlands, Texas, United States Recruiting -
Pacific Northwest Retina (Bellevue)
Bellevue, Washington, United States Recruiting -
Pacific Northwest Retina (Silverdale)
Silverdale, Washington, United States Recruiting -
Eye Clinic of Wisconsin
Wausau, Wisconsin, United States Recruiting -
Centro Oftalmologico Metropolitano
San Juan, Puerto Rico Recruiting -
Stanford Byers Eye Institute
Palo Alto, California, United States Not yet recruiting
+6 more sites. See ClinicalTrials.gov for the full list.
Study contacts
- Study coordinator: Kodiak Sciences Inc
- Email: ClinicalTrials@kodiak.com
- Phone: (650) 281-0850
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Intravitreal KSI-101 for macular edema caused by inflammation (PINNACLE)
This trial will test whether injections of KSI-101 can reduce retinal swelling and improve vision in adults with macular edema from inflammation.
-
Tabirafusp Tedromer vs Aflibercept for Diabetic Macular Edema (DME)
This study tests whether Tabirafusp Tedromer can work as well as or better than Aflibercept to help people with Diabetic Macular Edema.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.