학술논문

One Week of Oral Camostat Versus Placebo in Nonhospitalized Adults With Mild-to-Moderate Coronavirus Disease 2019: A Randomized Controlled Phase 2 Trial
Document Type
article
Source
Clinical Infectious Diseases. 77(7)
Subject
Biomedical and Clinical Sciences
Clinical Sciences
Clinical Trials and Supportive Activities
Emerging Infectious Diseases
Infectious Diseases
Coronaviruses Therapeutics and Interventions
Coronaviruses
Clinical Research
Evaluation of treatments and therapeutic interventions
6.1 Pharmaceuticals
Good Health and Well Being
Humans
Adult
COVID-19
SARS-CoV-2
RNA
Viral
Time Factors
Treatment Outcome
camostat
outpatient
phase 2
ACTIV-2/A5401 Study Team
Biological Sciences
Medical and Health Sciences
Microbiology
Clinical sciences
Language
Abstract
BackgroundCamostat inhibits severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection in vitro. We studied the safety and efficacy of camostat in ACTIV-2/A5401, a phase 2/3 platform trial of therapeutics for COVID-19 in nonhospitalized adults.MethodsWe conducted a phase 2 study in adults with mild-to-moderate COVID-19 randomized to oral camostat for 7 days or a pooled placebo arm. Primary outcomes were time to improvement in COVID-19 symptoms through day 28, proportion of participants with SARS-CoV-2 RNA below the lower limit of quantification (LLoQ) from nasopharyngeal swabs through day 14, and grade ≥3 treatment-emergent adverse events (TEAEs) through day 28.ResultsOf 216 participants (109 randomized to camostat, 107 to placebo) who initiated study intervention, 45% reported ≤5 days of symptoms at study entry and 26% met the protocol definition of higher risk of progression to severe COVID-19. Median age was 37 years. Median time to symptom improvement was 9 days in both arms (P = .99). There were no significant differences in the proportion of participants with SARS-CoV-2 RNA ConclusionsIn a phase 2 study of nonhospitalized adults with mild-to-moderate COVID-19, oral camostat did not accelerate viral clearance or time to symptom improvement, or reduce hospitalizations or deaths. Clinical Trials Registration. ClinicalTrials.gov identifier: NCT04518410.