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Study identifier: NCT07536308 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

A Safety and Immunogenicity Trial of OCU500, ChAd36 Vector Encoding SARS-CoV-2 Spike Vaccine Via Intranasal and Inhalational Routes in Previously Vaccinated Adults

Condition: COVID-19  ·  Sponsor: National Institute of Allergy and Infectious Diseases (NIAID)

PhasePhase 1
Planned participants80
Who can joinAll sexes, 18 Years to 64 Years
Healthy volunteersYes

About this study

This phase 1 randomized, open-label, dose-escalation clinical trial evaluates the safety and immunogenicity of OCU500, a ChAd36 Vector Encoding SARS-CoV-2 Spike Vaccine, in healthy adults aged 18-64 who previously completed a primary COVID-19 vaccination series and at least one booster. The study evaluates two dose levels (1×10\^10 viral particles (VP) and 5×10\^10 VP) and two routes of administration (intranasal and inhaled). The trial includes 80 participants across four study arms (20 per arm). The primary objective is to evaluate the safety and reactogenicity of a single dose of OCU500 administered in previously vaccinated healthy adults.

This description comes directly from the study's public registry record.

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Contact details are listed per location below or on the registry record.

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Locations (6)

The Hope Clinic of Emory UniversityDecatur, Georgia, United StatesRecruiting
University of Maryland, School of Medicine, Center for Vaccine Development and Global HealthBaltimore, Maryland, United StatesRecruiting
Brigham and Women's HospitalBoston, Massachusetts, United StatesRecruiting
Saint Louis University Center for Vaccine DevelopmentSt Louis, Missouri, United StatesRecruiting
Washington University School of Medicine in St. Louis - Infectious Disease Clinical Research UnitSt Louis, Missouri, United StatesWithdrawn
University of Texas Medical BranchGalveston, Texas, United StatesRecruiting

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Source record: clinicaltrials.gov/study/NCT07536308