Chronic treatment with hydroxychloroquine and SARS-CoV-2 infection

Abstract Background Hydroxychloroquine sulphate (HCQ) is being scrutinized for repositioning in the treatment and prevention of SARS-Cov-2 infection. This antimalarial drug is also chronically used to treat patients with autoimmune diseases.Methods By analyzing the Portuguese anonymized data on private and public based medical prescriptions we have identified all cases chronically receiving HCQ for the management of diseases such as systemic lupus erythematosus, rheumatoid arthritis, and other autoimmune diseases. Additionally, we have detected all laboratory confirmed cases of SARS-CoV-2 infection and all laboratory confirmed negative cases in the Portuguese population (mandatorily registered in a centrally managed database). Cross linking the two sets of data has allowed us to compare the proportion of HCQ chronic treatment (at least 2 grams per month) in laboratory confirmed cases of SARS-CoV-2 infection with laboratory confirmed negative cases.Results Out of 26,815 SARS-CoV-2 positive patients, 77 (0.29%) were chronically treated with HCQ, while 1,215 (0.36%) out of 333,489 negative patients were receiving it chronically (P=0.04). After adjustment for age, sex, and chronic treatment with corticosteroids and/or immunosuppressants, the odds ratio of SARS-CoV-2 infection for chronic treatment with HCQ has been 0.51 (0.37-0.70).Conclusions Our data suggest that chronic treatment with HCQ confer protection against SARS-CoV-2 infection..

Medienart:

Preprint

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

bioRxiv.org - (2021) vom: 24. März Zur Gesamtaufnahme - year:2021

Sprache:

Englisch

Beteiligte Personen:

Ferreira, A [VerfasserIn]
Oliveira-e-Silva, A [VerfasserIn]
Bettencourt, P [VerfasserIn]

Links:

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doi:

10.1101/2020.06.26.20056507

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

XBI018241212