Phase 2b Pivotal Study of Izokibep in Non-infectious, Intermediate-, Posterior- or Pan-uveitis

NCT ID: NCT05384249

Last Updated: 2025-02-21

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

PHASE2

Total Enrollment

96 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-08-23

Study Completion Date

2025-02-07

Brief Summary

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Izokibep is a small protein molecule that acts as a selective, potent inhibitor of interleukin-17A, to which it binds with high affinity. This study investigates izokibep in subjects with active non-infectious, intermediate-, posterior- or pan-uveitis requiring high-dose steroids.

Detailed Description

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Conditions

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Uveitis

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Group 1: Placebo subcutaneous once weekly

Participants will receive placebo every week to week 51.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Form: Solution for injection

Route of administration: Subcutaneous (SC)

Group 2: Izokibep subcutaneous once weekly

Participants will receive izokibep every week to week 51.

Group Type EXPERIMENTAL

Izokibep

Intervention Type DRUG

Biologic: IL-17A inhibitor

Form: Solution for injection

Route of administration: Subcutaneous (SC)

Interventions

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Izokibep

Biologic: IL-17A inhibitor

Form: Solution for injection

Route of administration: Subcutaneous (SC)

Intervention Type DRUG

Placebo

Form: Solution for injection

Route of administration: Subcutaneous (SC)

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

General

* Subject has provided signed informed consent including consenting to comply with the requirements and restrictions listed in the informed consent form (ICF) and in this protocol.
* 18 years to 75 years of age

Type of Subject and Disease Characteristics

* Subject is diagnosed with non-infectious intermediate-, posterior- or pan-uveitis
* Active disease defined by the presence of at least 1 of the following criteria in at least 1 eye despite treatment with stable doses of corticosteroids for at least 2 weeks prior to day 1:

* Active, inflammatory, chorioretinal and/or inflammatory retinal vascular lesion by dilated indirect ophthalmoscopy, fundus photography, fluorescein angiography (FA), and Spectral-Domain Optical Coherence Tomography (SD-OCT) to determine whether a lesion is active or inactive (the central reading center assessment using FA, fundus photography and/or SD-OCT is required to confirm eligibility prior to day 1).
* ≥ 2+ vitreous haze (National Eye Institute \[NEI\]/Standardization of Uveitis Nomenclature \[SUN\] criteria) by digital indirect ophthalmoscope and fundus photography (the central reading center assessment using fundus photography is required to confirm eligibility prior to day 1).
* Currently receiving treatment with oral corticosteroids (≥ 7.5 mg/day to ≤ 40 mg/day oral prednisone/prednisolone or corticosteroid equivalent) at a stable dose for at least 2 weeks prior to day 1.

Exclusion Criteria

Disease-related Medical Conditions

* Subject with isolated anterior uveitis
* Subject with serpiginous choroidopathy
* Subject with confirmed or suspected infectious uveitis
* Subject with corneal or lens opacity that precludes visualization of the fundus or that likely requires cataract surgery during the duration of the study
* Subject with intraocular pressure of ≥ 25 mmHg while on ≥ 2 glaucoma medications or evidence of glaucomatous optic nerve injury
* Subject with severe vitreous haze that precludes visualization of the fundus prior to first dose of study drug
* Subject has a contraindication for mydriatic eye drops OR subject cannot be dilated sufficiently well to permit good fundus visualization
* Subject with best corrected visual acuity (BCVA) \< 20 letters (Early Treatment Diabetic Retinopathy Study \[ETDRS\]) in at least 1 eye prior to first dose of study drug
* Subject with proliferative or severe non-proliferative retinopathy or clinically significant macular edema due to diabetic retinopathy
* Subject with neovascular/wet age-related macular degeneration
* Subject with an abnormality of the vitreo-retinal interface with the potential for macular structural damage independent of the inflammatory process
* Subject with a history of active scleritis ≤ 12 months of first dose of study drug
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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ACELYRIN Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Donald Betah

Role: STUDY_DIRECTOR

ACELYRIN Inc.

Locations

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Clinical Research Site

Phoenix, Arizona, United States

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Bakersfield, California, United States

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Beverly Hills, California, United States

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Los Angeles, California, United States

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Los Angeles, California, United States

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Palo Alto, California, United States

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Pasadena, California, United States

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Redlands, California, United States

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Sacramento, California, United States

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San Francisco, California, United States

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Denver, Colorado, United States

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Clearwater, Florida, United States

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Marietta, Georgia, United States

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Oak Park, Illinois, United States

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Indianapolis, Indiana, United States

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Hagerstown, Maryland, United States

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Waltham, Massachusetts, United States

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Detroit, Michigan, United States

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Palisades Park, New Jersey, United States

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New York, New York, United States

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Winston-Salem, North Carolina, United States

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Cleveland, Ohio, United States

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Cleveland, Ohio, United States

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Portland, Oregon, United States

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Erie, Pennsylvania, United States

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Pittsburgh, Pennsylvania, United States

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Charleston, South Carolina, United States

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Nashville, Tennessee, United States

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Austin, Texas, United States

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Bellaire, Texas, United States

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Houston, Texas, United States

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Houston, Texas, United States

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Houston, Texas, United States

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Plano, Texas, United States

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Spokane, Washington, United States

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Madison, Wisconsin, United States

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Graz, , Austria

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Salzburg, , Austria

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Vienna, , Austria

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Brno, , Czechia

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Pardubice, , Czechia

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Prague, , Czechia

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Prague, , Czechia

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Lyon, , France

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Marseille, , France

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Paris, , France

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Paris, , France

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Paris, , France

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Berlin, , Germany

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Bonn, , Germany

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Hamburg, , Germany

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Kiel, , Germany

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Leipzig, , Germany

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Münster, , Germany

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Münster, , Germany

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Milan, , Italy

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Milan, , Italy

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Milan, , Italy

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Reggio Emilia, , Italy

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Barcelona, , Spain

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Barcelona, , Spain

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Barcelona, , Spain

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Barcelona, , Spain

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Madrid, , Spain

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Clinical Research Site (4007)

Santiago de Compostela, , Spain

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Clinical Research Site (4008)

Santiago de Compostela, , Spain

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Valencia, , Spain

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Zaragoza, , Spain

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Zaragoza, , Spain

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Countries

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United States Austria Czechia France Germany Italy Spain

Other Identifiers

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2024-514975-16-00

Identifier Type: CTIS

Identifier Source: secondary_id

21103

Identifier Type: -

Identifier Source: org_study_id

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