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A Study to Investigate Vamikibart in Participants With Uveitic Macular Edema

A Phase III, Multicenter, Randomized, Double-Masked, Sham-Controlled Study to Investigate the Efficacy, Safety, Pharmacokinetics and Pharmacodynamics of Vamikibart Administered Intravitreally in Patients With Uveitic Macular Edema

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05642312
Acronym
Meerkat
Enrollment
245
Registered
2022-12-08
Start date
2023-01-09
Completion date
2025-07-09
Last updated
2025-11-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Uveitic Macular Edema

Brief summary

This study will assess the efficacy and safety of vamikibart in participants with uveitic macular edema.

Interventions

Participants will receive vamikibart IVT injection

OTHERSham

Participants will receive a sham procedure that mimics an IVT injection.

Sponsors

Hoffmann-La Roche
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Female participants: Agreement to remain abstinent (refrain from heterosexual intercourse) or use contraception as defined by the protocol * Diagnosis of macular edema associated with non-infectious uveitis (NIU) * Diagnosis of active or inactive, acute, or chronic NIU of any etiology and of any anatomical type (anterior, intermediate, posterior, panuveitis) * BCVA letter score of 73 to 19 letters (inclusive) on Early Treatment Diabetic Retinopathy Study (EDTRS)-like charts

Exclusion criteria

* Evidence of active or latent syphilis infection * Evidence of active or latent tuberculosis infection and/or positive tuberculosis assay, or previous or current HIV diagnosis * Serious acute or chronic medical or psychiatric illness * History of major ocular and non-ocular surgical procedures * Uncontrolled IOP or glaucoma or chronic hypotony * Any anatomical changes or media opacity in the study eye preventing evaluation of retina, vitreous, and capture of study images * Prior use of IVT biologics including anti-VEGFs less than 2-4 months prior to Day 1; received IVT Methotrexate within 4 months prior to Day 1 * Prior macular laser therapy, cataract surgery within 6 months and laser capsulotomy within 3 months of Day 1 * Topical corticosteroids and/or topical NSAID \> 3 drops per day in the 14 days prior to Day 1 (D1); intraocular or periocular corticosteroid injections in the 2 months prior to D1; subconjunctival corticosteroid injection within 1 month prior to Day 1; an OZURDEX implant in the 4 months prior to D1; YUTIQ, RETISERT or ILUVIEN implant in the 3 years prior to D1 * Diagnosis of macular edema due to any cause other than NIU * Any major ocular conditions that may require medical or surgical intervention during the study period to prevent vision loss

Design outcomes

Primary

MeasureTime frame
Proportion of participants with ≥ 15 letter improvement from baseline in best-corrected visual acuity (BCVA) at Week 16Week 16

Secondary

MeasureTime frame
Change from baseline in BCVA at Week 16Week 16
Change from baseline in central subfield thickness (CST) at Week 16Week 16
Change from Baseline in BCVA at Weeks 20 and 52Weeks 20 and 52
Change from baseline in CST at Weeks 20 and 52Weeks 20 and 52
Proportion of participants with uveitic macular edema secondary to non-infectious uveitis (UME) resolution defined by standardized (by machine) CST threshold <325um on optical coherence tomography (OCT) from baseline at Weeks 16 and 52Weeks 16 and 52
Time to rescue treatmentUp to Week 52
Number of rescue treatments receivedUp to Week 52
Type of rescue treatments receivedUp to Week 52
Proportion of participants with ≥15 letter improvement from baseline in BCVA at Week 16 and 52Weeks 16 and 52
Proportion of participants without ≥15 letter loss from baseline in BCVA at Week 16 and 52Weeks 16 and 52
Proportion of participants with ≥ 15 letter improvement from baseline in BCVA at Week 20Week 20
Time to first PRN injectionUp to Week 52
Change from baseline in the National Eye Institute Visual Function Questionnaire-25 (NEI VFQ-25) at Weeks 16 and 52Weeks 16 and 52
Percentage of participants with ocular adverse events (AEs)Up to Week 52
Percentage of participants with non-ocular AEsUp to Week 52
Percent change from baseline in corneal endothelial cell density at Week 24Week 24
Percentage of participants with adverse events of special interest (AESIs)Up to Week 52
Percent change from baseline in corneal endothelial cell density at Week 52Week 52
Aqueous humor (AH) concentration of vamikibartUp to Week 52
Serum concentration of vamikibartUp to Week 52
Anti-drug antibody titer to vamikibartBaseline to Week 52
Number of PRN injections receivedUp to Week 52

Countries

Austria, Brazil, Canada, China, Israel, Italy, Mexico, Netherlands, Poland, Portugal, South Korea, Taiwan, United Kingdom, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 10, 2026