A Study to Evaluate the Safety of CNTO 2476 in Patients With Advanced Retinitis Pigmentosa

Phase 1

Terminated

• Conditions: Retinitis Pigmentosa
• Interventions: Drug: CNTO 2476

• Registration Number: NCT00458575
• Lead Sponsor: Centocor, Inc.

Brief Summary

The main purpose of this study is to evaluate the preliminary safety and immunogenicity (ability of an antigen to provoke immune response in the human body) of CNTO 2476, administered subretinally, in participants with advanced retinitis pigmentosa (RP; disease of the eye that leads to loss of vision and blindness) with either light perception only (LP) or hand motion (HM).

Detailed Description

The study will be an open-label (all people know the identity of the intervention), first in human safety study. Nine adult men and women with advanced RP with LP only (first 5 participants) or not better than HM bilaterally (subsequent 4 participants) in both eyes will be enrolled. Participant 5 may have combination visual acuity of LP in the treated eye and no better than HM in the fellow eye. Treatment will proceed on a cohort basis ie, Cohort I: Participant 1; Cohort II: Participant 2; Cohort III: Participant 3 and 4; Cohort IV: Participant 5, 6, and 7; and Cohort V: Participant 8 and 9. The initial participants for each cohort must have completed at least 4 weeks of post-treatment follow-up before participants in the next cohort may be treated. There are 2 safety assessment phases in this study: the main phase approximately 12 months from the time the participant is eligible to enter the study and the long-term safety follow-up phase of 4 additional years. The total length of the participation in the study could last up to 5 years (including both the main and safety follow-up phases).

Study Timeline

• Study Start: 2007-04
• Study First Submitted: 2007-04-10
• Study First Submitted QC: 2007-04-10
• Study First Posted: 2007-04-11
• Primary Completion: 2013-08
• Study Completion: 2013-08
• Status Verified: 2014-06
• Last Update Submitted: 2014-06-25
• Last Update Posted: 2014-06-26

Recruitment & Eligibility

• Status: TERMINATED
• Sex: All
• Target Recruitment: 7

Inclusion Criteria

• Confirmed diagnosis of retinitis pigmentosa that is not part of another systemic disease
• Vision deficit characterized by vision that is not better than either light perception (Group 1) or hand motion (Group 2) in both eyes
• Normal hematology and chemistry lab results
• Participant is suitable candidate for ophthalmologic surgery

Exclusion Criteria

• Other significant ophthalmologic diseases or any other ophthalmologic condition that interferes with ophthalmologic examination
• Women of childbearing potential
• Ocular hypertension
• Other serious medical conditions

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
CNTO 2476	CNTO 2476	Participants 1 to 4: advanced retinitis pigmentosa (RP) with light perception only (LP); Participant 5: combination visual acuity of LP in the treated eye and no better than hand motion (HM) in the fellow eye; and Participants 6 to 9: advanced RP with hand motion (HM) will receive different dose levels of CNTO 2476.

Primary Outcome Measures

Name	Time	Method
Level of anti-CNTO 2476 antibody in blood for immunogenicity testing	Baseline, Days 7 and 15, Weeks 3 and 4, Months 2, 3, 6, 12, 24, 36, 48, and 60
Number of adverse events as a measure of safety and tolerability	Up to 5 years from the time participant is eligible to enter study

Secondary Outcome Measures

Name	Time	Method
Change from baseline in retinal structure and visual function	Up to 5 years from the time participant is eligible to enter study	This will be assessed by optical coherence tomography (OCT), fluorescein angiography (FA), fundus photography, and visual field sensitivity (FFST).