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ABSTRACT: Background
Effective therapeutics for respiratory viruses are needed. Early data suggest that nitazoxanide (NTZ) may be beneficial for treating acute respiratory viral illness.Methods
From March 2014 through March 2017, a double-blind, placebo-controlled trial was conducted in 260 participants ≥1 year old hospitalized with influenza-like illness at 6 hospitals in Mexico. Participants were randomized 1:1 to NTZ (age ≥12 years, 600 mg twice daily; age 4-11 years and 1-3 years, 200 or 100 mg twice daily, respectively) or placebo for 5 days in addition to standard of care. The primary endpoint was time from first dose to hospital discharge. Influenza reverse-transcription polymerase chain reaction and Respifinder 22 multiplex test were used for virus detection.Results
Of 260 participants enrolled, 257 were randomized and took at least 1 dose of study treatment (intention-to-treat population): 130 in the NTZ group and 127 in the placebo group. The Kaplan-Meier estimate of the median duration of hospitalization was 6.5 (interquartile range [IQR], 4.0-9.0) days in the NTZ group vs 7.0 (IQR, 4.0-9.0) days in the placebo group (P = .56). Duration of hospitalization between the 2 treatments was similar in children (P = .29) and adults (P = .62), influenza A and B (P = .32), and other respiratory viruses. Seven (5.4%) and 6 (4.7%) participants in the NTZ and placebo groups, respectively, reported serious adverse events.Conclusions
Treatment with NTZ did not reduce the duration of hospital stay in severe influenza-like illness. Further analyses based on age and evaluations by virus did not reveal any subgroups that appeared to benefit from NTZ.Clinical trials registration
NCT02057757.
SUBMITTER: Gamino-Arroyo AE
PROVIDER: S-EPMC6853643 | biostudies-literature | 2019 Nov
REPOSITORIES: biostudies-literature

Gamiño-Arroyo Ana E AE Guerrero M Lourdes ML McCarthy Sean S Ramírez-Venegas Alejandra A Llamosas-Gallardo Beatriz B Galindo-Fraga Arturo A Moreno-Espinosa Sarbelio S Roldán-Aragón Yuri Y Araujo-Meléndez Javier J Hunsberger Sally S Ibarra-González Violeta V Martínez-López Julia J García-Andrade Luis A LA Kapushoc Heather H Holley H Preston HP Smolskis Mary C MC Ruiz-Palacios Guillermo M GM Beigel John H JH
Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 20191101 11
<h4>Background</h4>Effective therapeutics for respiratory viruses are needed. Early data suggest that nitazoxanide (NTZ) may be beneficial for treating acute respiratory viral illness.<h4>Methods</h4>From March 2014 through March 2017, a double-blind, placebo-controlled trial was conducted in 260 participants ≥1 year old hospitalized with influenza-like illness at 6 hospitals in Mexico. Participants were randomized 1:1 to NTZ (age ≥12 years, 600 mg twice daily; age 4-11 years and 1-3 years, 200 ...[more]