Triple combination of interferon beta-1b, lopinavir–ritonavir, and ribavirin in the treatment of patients admitted to hospital with COVID-19: an open-label, randomised, phase 2 trial

Ivan Fan Ngai Hung, Kwok Cheung Lung, Eugene Yuk Keung Tso, Raymond Liu, Tom Wai Hin Chung, Man Yee Chu, Yuk Yung Ng, Jenny Lo, Jacky Chan, Anthony Raymond Tam, Hoi Ping Shum, Veronica Chan, Alan Ka Lun Wu, Kit Man Sin, Wai Shing Leung, Wai Lam Law, David Christopher Lung, Simon Sin, Pauline Yeung, Cyril Chik Yan YipRicky Ruiqi Zhang, Agnes Yim Fong Fung, Erica Yuen Wing Yan, Kit Hang Leung, Jonathan Daniel Ip, Allen Wing Ho Chu, Wan Mui Chan, Anthony Chin Ki Ng, Rodney Lee, Kitty Fung, Alwin Yeung, Tak Chiu Wu, Johnny Wai Man Chan, Wing Wah Yan, Wai Ming Chan, Jasper Fuk Woo Chan, Albert Kwok Wai Lie, Owen Tak Yin Tsang, Vincent Chi Chung Cheng, Tak Lun Que, Chak Sing Lau, Kwok Hung Chan, Kelvin Kai Wang To, Kwok Yung Yuen

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Abstract

Background: Effective antiviral therapy is important for tackling the coronavirus disease 2019 (COVID-19) pandemic. We assessed the efficacy and safety of combined interferon beta-1b, lopinavir–ritonavir, and ribavirin for treating patients with COVID-19. Methods: This was a multicentre, prospective, open-label, randomised, phase 2 trial in adults with COVID-19 who were admitted to six hospitals in Hong Kong. Patients were randomly assigned (2:1) to a 14-day combination of lopinavir 400 mg and ritonavir 100 mg every 12 h, ribavirin 400 mg every 12 h, and three doses of 8 million international units of interferon beta-1b on alternate days (combination group) or to 14 days of lopinavir 400 mg and ritonavir 100 mg every 12 h (control group). The primary endpoint was the time to providing a nasopharyngeal swab negative for severe acute respiratory syndrome coronavirus 2 RT-PCR, and was done in the intention-to-treat population. The study is registered with ClinicalTrials.gov, NCT04276688. Findings: Between Feb 10 and March 20, 2020, 127 patients were recruited; 86 were randomly assigned to the combination group and 41 were assigned to the control group. The median number of days from symptom onset to start of study treatment was 5 days (IQR 3–7). The combination group had a significantly shorter median time from start of study treatment to negative nasopharyngeal swab (7 days [IQR 5–11]) than the control group (12 days [8–15]; hazard ratio 4·37 [95% CI 1·86–10·24], p=0·0010). Adverse events included self-limited nausea and diarrhoea with no difference between the two groups. One patient in the control group discontinued lopinavir–ritonavir because of biochemical hepatitis. No patients died during the study. Interpretation: Early triple antiviral therapy was safe and superior to lopinavir–ritonavir alone in alleviating symptoms and shortening the duration of viral shedding and hospital stay in patients with mild to moderate COVID-19. Future clinical study of a double antiviral therapy with interferon beta-1b as a backbone is warranted. Funding: The Shaw-Foundation, Richard and Carol Yu, May Tam Mak Mei Yin, and Sanming Project of Medicine.

Original languageEnglish
Pages (from-to)1695-1704
Number of pages10
JournalThe Lancet
Volume395
Issue number10238
DOIs
Publication statusPublished - May 30 2020
Externally publishedYes

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ASJC Scopus Subject Areas

  • General Medicine

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