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Vehicle

Phase 2

Corneal Endothelial Cell Loss | Small molecule | Ophthalmology |Biogen Inc.|Last Updated: Jun 3, 2025

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLEDBiomarker
Total Trials1
Total Enrollment307
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT02128113RTA 408 Ophthalmic Suspension for the Prevention of Corneal Endothelial Cell Loss Following Cataract Surgery - GUARDPHASE2 COMPLETED 307May 31, 2014Apr 30, 2015Jun 3, 202515 United States
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Study Endpoints
Primary Endpoints
Change From Baseline in Central Corneal Endothelial Cell Counts
12 weeks

Count of central corneal endothelial cells 12 weeks post cataract surgery, compared to baseline

Secondary Endpoints
Percentage of Patients With Absence of Anterior Chamber Cells at 2 Weeks After Cataract Surgery
2 weeks
Percentage of Patients With Absence of Anterior Chamber Flare at 2 Weeks After Cataract Surgery
2 weeks
Percentage of Patients With Clinical Cure (Absence of Anterior Chamber Cells + Flare) at 2 Weeks After Cataract Surgery
2 weeks
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Study Design & Arms
AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposePREVENTION
Treatment Arms
ArmTypeDescription
Vehicle Ophthalmic SolutionPLACEBO_COMPARATORA single drop of Vehicle Ophthalmic solution was instilled into the study eye twice daily (approximately 12 hours apart) for a maximum of 28 days, beginning 3 to 7 days prior to cataract surgery and continuing on the day of surgery and for 3 weeks after surgery
Omaveloxolone Opthalmic Suspension 0.5%EXPERIMENTALA single drop of Omaveloxolone Ophthalmic suspension 0.5% was instilled into the study eye twice daily (approximately 12 hours apart) for a maximum of 28 days, beginning 3 to 7 days prior to cataract surgery and continuing on the day of surgery and for 3 weeks after surgery
Omaveloxolone Opthalmic Suspension 1%EXPERIMENTALA single drop of Omaveloxolone Ophthalmic suspension 1.0% was instilled into the study eye twice daily (approximately 12 hours apart) for a maximum of 28 days, beginning 3 to 7 days prior to cataract surgery and continuing on the day of surgery and for 3 weeks after surgery
Interventions
NameTypeDescription
Vehicle Ophthalmic SolutionDRUGOpthalmic suspension manufactured to mimic RTA 408 suspension
Omaveloxolone Ophthalmic Suspension 0.5%DRUG0.5% ophthalmic suspension of RTA 408
Omaveloxolone Ophthalmic Suspension 1%DRUG1% ophthalmic suspension of RTA 408
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Eligibility Criteria
Age Range18 Years — 80 Years
SexALL
Healthy VolunteersNo
Study Sites15

Inclusion Criteria: 1. Be male or female and ≥18 years of age and ≤80 years of age 2. Plan to undergo cataract extraction by phacoemulsification with the implantation of a posterior chamber intraocular lens 3. Have the potential, in the opinion of the investigator, to improve best-corrected visual ...

Countries:United States
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