Prospective, Randomized, Sham-controlled, Dose-finding I/II Trial of Safety and Efficacy of Modified Optogenetic Gene Therapy (ZM-02 Injection)
PRISM
A Prospective, Randomized, Sham-controlled, Dose-finding Phase 1/2 Two-part Trial to Evaluate the Safety, Tolerability, and Efficacy of ZM-02 Injection in Patients With Advanced Retinitis Pigmentosa
1 other identifier
interventional
21
0 countries
N/A
Brief Summary
This is a Phase 1/2, multi-center, randomized, sham-controlled, dose-escalation study evaluating ZM-02 in patients with advanced retinitis pigmentosa (RP).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_1
Started Jun 2026
Longer than P75 for phase_1
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
November 26, 2025
CompletedFirst Posted
Study publicly available on registry
December 15, 2025
CompletedStudy Start
First participant enrolled
June 25, 2026
ExpectedPrimary Completion
Last participant's last visit for primary outcome
December 25, 2029
Study Completion
Last participant's last visit for all outcomes
December 25, 2031
April 13, 2026
April 1, 2026
3.5 years
November 26, 2025
April 9, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Safety and tolerability of ZM-02
Incidence of severity of ocular and systemic adverse events (AEs) and serious adverse events (SAEs) following a single intravitreal injection of ZM-02.
Baseline to Week 52.
Secondary Outcomes (3)
Change from Baseline in Best-Corrected Visual Acuity (BCVA) of Both Eyes
Baseline to Week 52.
Change from Baseline in Functional Vision (MLMT)
Baseline to Week 52.
Change from Baseline in Vision-Related Quality of Life (NEI VFQ-25)
Baseline to Week 52.
Study Arms (4)
Low Dose ZM-02
EXPERIMENTALHigh Dose ZM-02
EXPERIMENTALZM-02 (selected dose)
EXPERIMENTALSham Comparator
SHAM COMPARATORInterventions
Single unilateral IVT injection of selected-dose ZM-02 in the study eye
Single unilateral IVT injection of low-dose ZM-02 in the study eye
Single unilateral IVT injection of high-dose ZM-02 in the study eye
Eligibility Criteria
You may qualify if:
- Male or female participants aged 6 to 60 years.
- Clinical diagnosis of advanced retinitis pigmentosa (RP).
- Best corrected visual acuity at or below the protocol-defined threshold in the study eye.
- Presence of sufficient retinal structure in the study eye as determined by screening assessments.
- Ability to understand and sign informed consent (and assent, when applicable).
You may not qualify if:
- Presence of other ocular conditions that could interfere with study assessments.
- History of significant ocular surgery in the study eye within a protocol-defined period.
- Active ocular infection or inflammation.
- Clinically significant systemic disease that could increase study risk or interfere with assessments.
- Positive screening for clinically significant infectious diseases, as defined in the protocol.
- Pregnant or breastfeeding individuals.
- Any condition that, in the investigator's judgment, would make the participant unsuitable for study participation.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- SEQUENTIAL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 26, 2025
First Posted
December 15, 2025
Study Start (Estimated)
June 25, 2026
Primary Completion (Estimated)
December 25, 2029
Study Completion (Estimated)
December 25, 2031
Last Updated
April 13, 2026
Record last verified: 2026-04
Data Sharing
- IPD Sharing
- Will not share