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Efficacy of COVID-19 Oral antivirals in hospitalised oldest-old with high morbidity burden: a target trial emulation study.
Lai, Francisco Tsz Tsun; Wang, Boyuan; Wei, Cuiling; Chui, Celine Sze Ling; Li, Xue; Cheung, Ching Lung; Wong, Ian Chi Kei; Chan, Esther Wai Yin; Wan, Eric Yuk Fai.
Afiliación
  • Lai FTT; Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 21 Sassoon Road, Southern District, Hong Kong Special Administrative Region, China.
  • Wang B; Department of Family Medicine and Primary Care, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 21 Sassoon Road, Southern District, Hong Kong Special Administrative Region, China.
  • Wei C; Laboratory of Data Discovery for Health (D24H), 19 Science Park West Avenue, Hong Kong Science Park, Tai Po District, Hong Kong Special Administrative Region, China.
  • Chui CSL; Department of Family Medicine and Primary Care, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 21 Sassoon Road, Southern District, Hong Kong Special Administrative Region, China.
  • Li X; Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 21 Sassoon Road, Southern District, Hong Kong Special Administrative Region, China.
  • Cheung CL; Laboratory of Data Discovery for Health (D24H), 19 Science Park West Avenue, Hong Kong Science Park, Tai Po District, Hong Kong Special Administrative Region, China.
  • Wong ICK; School of Nursing, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 21 Sassoon Road, Southern District, Hong Kong Special Administrative Region, China.
  • Chan EWY; School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, 21 Sassoon Road, Southern District, Hong Kong Special Administrative Region, China.
  • Wan EYF; Advanced Data Analytics for Medical Science (ADAMS) Limited, 19 Science Park West Avenue, Hong Kong Science Park, Tai Po District, Hong Kong Special Administrative Region, China.
Age Ageing ; 53(8)2024 Aug 06.
Article en En | MEDLINE | ID: mdl-39141078
ABSTRACT

BACKGROUND:

Molnupiravir and nirmatrelvir-ritonavir are orally administered pharmacotherapies for mild to moderate COVID-19. However, the effectiveness of these drugs among very old (≥80 years), hospitalised patients remains unclear, limiting the risk-benefit assessment of these antivirals in this specific group. This study investigates the effectiveness of these antivirals in reducing mortality among this group of hospitalised patients with COVID-19.

METHODS:

Using a territory-wide public healthcare database in Hong Kong, a target trial emulation study was conducted with data from 13 642 eligible participants for the molnupiravir trial and 9553 for the nirmatrelvir-ritonavir trial. The primary outcome was all-cause mortality. Immortal time and confounding bias was minimised using cloning-censoring-weighting approach. Mortality odds ratios were estimated by pooled logistic regression after adjusting confounding biases by stabilised inverse probability weights.

RESULTS:

Both molnupiravir (HR 0.895, 95% CI 0.826-0.970) and nirmatrelvir-ritonavir (HR 0.804, 95% CI 0.678-0.955) demonstrated moderate mortality risk reduction among oldest-old hospitalised patients. No significant interaction was observed between oral antiviral treatment and vaccination status. The 28-day risk of mortality was lower in initiators than non-initiators for both molnupiravir (risk difference -1.09%, 95% CI -2.29, 0.11) and nirmatrelvir-ritonavir (risk difference -1.71%, 95% CI -3.30, -0.16) trials. The effectiveness of these medications was observed regardless of the patients' prior vaccination status.

CONCLUSIONS:

Molnupiravir and nirmatrelvir-ritonavir are moderately effective in reducing mortality risk among hospitalised oldest-old patients with COVID-19, regardless of their vaccination status.
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Texto completo: 1 Base de datos: MEDLINE Asunto principal: Antivirales / SARS-CoV-2 / Tratamiento Farmacológico de COVID-19 / Hospitalización Límite: Aged80 / Female / Humans / Male País/Región como asunto: Asia Idioma: En Revista: Age Ageing Año: 2024 Tipo del documento: Article País de afiliación: China

Texto completo: 1 Base de datos: MEDLINE Asunto principal: Antivirales / SARS-CoV-2 / Tratamiento Farmacológico de COVID-19 / Hospitalización Límite: Aged80 / Female / Humans / Male País/Región como asunto: Asia Idioma: En Revista: Age Ageing Año: 2024 Tipo del documento: Article País de afiliación: China