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Randomized controlled open label trial on the use of favipiravir combined with inhaled interferon beta-1b in hospitalized patients with moderate to severe COVID-19 pneumonia

Faryal Khamis, Hanan Al Naabi, Adil Al Lawati, Zaiyana Ambusaidi, Mariam Al Sharji, Umkulthum Al Barwani, N. Pandak, Zakariya Y. Al Balushi et al.

International Journal of Infectious Diseases, 2020

89 participants · 82 citations

Abstract

Objective To evaluate the therapeutic effectiveness of favipiravir combined with inhaled interferon beta-1b in adult patients hospitalized with moderate to severe COVID-19 pneumonia. Methods A randomized, open-label controlled trial of oral favipiravir in adults hospitalized with moderate to severe COVID-19 pneumonia from June 22nd 2020 to August 13th 2020 was conducted. Patients were randomly assigned to receive either a combination of favipiravir with interferon beta-1b by inhalation aerosol or hydroxychloroquine (HCQ). The outcome endpoints included improvement in inflammatory markers, lower length of hospital stay (LOS), discharges and lower overall 14-day mortality. Results A total of 89 patients underwent randomization with 49% (n = 44) assigned to favipiravir and 51% (n = 45) assigned HCQ. The overall mean age was 55 ± 14 years and 58% (n = 52) were males. There were no significant differences in the inflammatory biomarkers at hospital discharge between the two groups; C-reactive protein (p = 0.413), ferritin (p = 0.968), lactate dehydrogenase (p = 0.259) and interleukin 6 (p = 0.410). There were also no significant differences between the two groups with regards to the overall LOS (7 vs 7 days; p = 0.948), transfers to the ICU (18.2% vs 17.8%; p = 0.960), discharges (65.9% vs 68.9%; p = 0.764) and overall mortality (11.4% vs 13.3%; p = 0.778). Conclusions No differences in clinical outcomes were found between favipiravir plus inhaled interferon beta-1b and…

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Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 2 of 5 (High · randomized trial). Randomized trials of a reasonable size are the strongest single-study design. Reported size: 89 participants or records.

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