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Reiersen AM, Mattar C, Bender Ignacio RA, Boulware DR, Lee TC, Hess R, Lankowski AJ, McDonald EG, Miller JP, Powderly WG, Pullen MF, Rado JT, Rich MW, Schiffer JT, Schweiger J, Spivak AM, Stevens A, Vigod SN, Agarwal P, Yang L, Yingling M, Gettinger TR, Zorumski CF, Lenze EJ. The STOP COVID 2 Study: Fluvoxamine vs Placebo for Outpatients With Symptomatic COVID-19, a Fully Remote Randomized Controlled Trial. Open Forum Infect Dis 2023; 10:ofad419. [PMID: 37622035 PMCID: PMC10445518 DOI: 10.1093/ofid/ofad419] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 08/06/2023] [Indexed: 08/26/2023] Open
Abstract
Background Prior randomized clinical trials have reported benefit of fluvoxamine ≥200 mg/d vs placebo for patients infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Methods This randomized, double-blind, placebo-controlled, fully remote multisite clinical trial evaluated whether fluvoxamine prevents clinical deterioration in higher-risk outpatients with acute coronavirus disease 2019 (COVID-19). Between December 2020 and May 2021, nonhospitalized US and Canadian participants with confirmed symptomatic infection received fluvoxamine (50 mg on day 1, 100 mg twice daily thereafter) or placebo for 15 days. The primary modified intent-to-treat (mITT) population included participants who started the intervention within 7 days of symptom onset with a baseline oxygen saturation ≥92%. The primary outcome was clinical deterioration within 15 days of randomization, defined as having both (1) shortness of breath (severity ≥4 on a 0-10 scale or requiring hospitalization) and (2) oxygen saturation <92% on room air or need for supplemental oxygen. Results A total of 547 participants were randomized and met mITT criteria (n = 272 fluvoxamine, n = 275 placebo). The Data Safety Monitoring Board recommended stopping early for futility related to lower-than-predicted event rates and declining accrual concurrent with vaccine availability in the United States and Canada. Clinical deterioration occurred in 13 (4.8%) participants in the fluvoxamine group and 15 (5.5%) participants in the placebo group (absolute difference at day 15, 0.68%; 95% CI, -3.0% to 4.4%; log-rank P = .91). Conclusions This trial did not find fluvoxamine efficacious in preventing clinical deterioration in unvaccinated outpatients with symptomatic COVID-19. It was stopped early and underpowered due to low primary outcome rates. Clinical Trials Registration ClinicalTrials.gov Identifier: NCT04668950.
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Affiliation(s)
- Angela M Reiersen
- Department of Psychiatry, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Caline Mattar
- Division of Infectious Diseases, Department of Internal Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Rachel A Bender Ignacio
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, Washington, USA
- Allergy & Infectious Diseases Division, Department of Medicine, University of Washington, Seattle, Washington, USA
| | - David R Boulware
- Division of Infectious Diseases and International Medicine, University of Minnesota, Minneapolis, Minnesota, USA
| | - Todd C Lee
- Division of Infectious Diseases, Department of Medicine, McGill University Health Centre, Montréal, Québec, Canada
- Department of Medicine, Clinical Practice Assessment Unit, McGill University Health Centre, Montréal, Québec, Canada
- Division of Experimental Medicine, Department of Medicine, McGill University, Montréal, Québec, Canada
| | - Rachel Hess
- Division of Health System Innovation and Research, University of Utah, Salt Lake City, Utah, USA
- Division of General Internal Medicine, University of Utah, Salt Lake City, Utah, USA
| | - Alexander J Lankowski
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, Washington, USA
| | - Emily G McDonald
- Department of Medicine, Clinical Practice Assessment Unit, McGill University Health Centre, Montréal, Québec, Canada
- Division of Experimental Medicine, Department of Medicine, McGill University, Montréal, Québec, Canada
- Division of General Internal Medicine, Department of Medicine, McGill University Health Centre, Montréal, Québec, Canada
| | - J Philip Miller
- Institute for Informatics, Data Science and Biostatistics, Washington University School of Medicine, St. Louis, Missouri, USA
| | - William G Powderly
- Division of Infectious Diseases, Department of Internal Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Matthew F Pullen
- Division of Infectious Diseases and International Medicine, University of Minnesota, Minneapolis, Minnesota, USA
| | - Jeffrey T Rado
- Departments of Psychiatry & Behavioral Sciences and Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Michael W Rich
- Department of Medicine, Cardiovascular Division, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Joshua T Schiffer
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, Washington, USA
- Allergy & Infectious Diseases Division, Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Julie Schweiger
- Department of Psychiatry, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Adam M Spivak
- Division of Infectious Diseases, University of Utah, Salt Lake City, Utah, USA
| | - Angela Stevens
- Department of Psychiatry, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Simone N Vigod
- Department of Psychiatry, Temerty Faculty of Medicine, University of Toronto and Women's College Hospital, Toronto, Ontario, Canada
| | - Payal Agarwal
- Department of Family and Community Medicine, Temerty Faculty of Medicine, University of Toronto and Women's College Hospital, Toronto, Ontario, Canada
| | - Lei Yang
- Department of Psychiatry, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Michael Yingling
- Department of Psychiatry, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Torie R Gettinger
- Department of Psychiatry, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Charles F Zorumski
- Department of Psychiatry, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Eric J Lenze
- Department of Psychiatry, Washington University School of Medicine, St. Louis, Missouri, USA
- Department of Anesthesiology, Washington University School of Medicine, St. Louis, Missouri, USA
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