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0 0.5 1 1.5 2+ Mortality 28% Improvement Relative Risk c19hcq.org Guglielmetti et al. HCQ for COVID-19 LATE TREATMENT Is late treatment with HCQ beneficial for COVID-19? Retrospective 600 patients in Italy (February - May 2020) Lower mortality with HCQ (not stat. sig., p=0.1) Guglielmetti et al., Scientific Reports, doi:10.1038/s41598-021-00243-4 Favors HCQ Favors control
Treatment for COVID-19—a cohort study from Northern Italy
Guglielmetti et al., Scientific Reports, doi:10.1038/s41598-021-00243-4
Guglielmetti et al., Treatment for COVID-19—a cohort study from Northern Italy, Scientific Reports, doi:10.1038/s41598-021-00243-4
Oct 2021   Source   PDF  
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Retrospective 600 hospitalized patients in Italy, showing lower mortality with HCQ treatment, without reaching statistical significance (p = 0.1).
Although the 28% lower mortality is not statistically significant, it is consistent with the significant 22% lower mortality [18‑27%] from meta analysis of the 232 mortality results to date.
risk of death, 28.0% lower, HR 0.72, p = 0.10, treatment 474, control 126, multivariable Cox proportional hazards.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates
Guglielmetti et al., 25 Oct 2021, retrospective, Italy, peer-reviewed, 19 authors, study period 21 February, 2020 - 15 May, 2020.
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Abstract: www.nature.com/scientificreports OPEN Treatment for COVID‑19—a cohort study from Northern Italy Lorenzo Guglielmetti1,2,3*, Daniela Aschieri4, Irina Kontsevaya5,6,7, Francesco Calabrese3, Alessandra Donisi8, Alberto Faggi3, Patrizia Ferrante3,9, Elisa Fronti3, Laura Gerna3, Maria Cristina Leoni3, Franco Paolillo3, Giovanna Ratti3, Alessandro Ruggieri3, Daria Sacchini3, Marta Scotti3, Caterina Valdatta3, Marco Stabile10, Gloria Taliani3,11,12 & Mauro Codeluppi3 Multicentre, retrospective cohort study with multivariable Cox proportional-hazards modelling and survival-time inverse-probability-weighting, evaluating the impact of different treatments on survival of proven COVID-19 patients admitted to two Hospitals in the province of Piacenza, Italy. Use of tocilizumab and of high doses of low molecular weight heparin, but not of antivirals (either alone or in combination), azithromycin, and any corticosteroid, was independently associated with lower mortality. Our results support further clinical evaluation of high doses of low molecular weight heparin and tocilizumab as COVID-19 therapeutics. Italy was struck by the first epidemic wave of coronavirus disease 2019 (COVID-19) in early ­20201. Overall, about 44 000 excess deaths occurred in this 3-month ­period2, largely concentrated in Northern Italy. At that time, virtually no evidence was available on the optimal management of COVID-19. In this study, we aim to evaluate the impact of the medical interventions on survival in hospitalized COVID-19 patients in the province of Piacenza, Italy. Methods A multicentre, retrospective cohort study was performed among patients hospitalized for COVID-19 from February 21st (date of the first reported COVID-19 case) to May 15th, 2020, at two Hospitals in the province of Piacenza: Guglielmo da Saliceto and Castel San Giovanni. Data for consecutive patients were extracted from electronic medical files, cross-checked, and collated in an anonymized database. Data were censored on June 30th, 2020. Adult (18 years and older) confirmed COVID-19 cases with SARS-CoV-2 reverse transcriptase realtime polymerase chain reaction test on nasal/pharyngeal s­ wab3 were included. Part of the cohort was described ­previously4. The study was approved by the local Ethics Committee (Area Vasta Emilia Nord), which waived the requirement for informed consent. Continuous data were presented as median and interquartile range (IQR), categorical data as counts and proportions. Low molecular weight heparin was defined as high-dose (HD-LMWH) when given at therapeutic posology (i.e. enoxaparin 6000 international units daily or more) according to drug package inserts. Prescription of treatment (including the choice of the drug and its posology) was heterogeneous in terms of indication as little evidence and no specific recommendations on their use were available. Missing data were handled with multiple imputation using chained equations with 10 imputed datasets. The proportion of missing observations ranged between 0 and 9%. Multivariable Cox proportional-hazards models were used to assess the association of treatment variables with survival, controlling for potential confounders chosen according to univariate results and a priori plausibility. Two models were used: (1) including a variable coding for treatment with any antiviral drug, and (2) including variables coding for the use of hydroxychloroquine, protease inhibitors, 1 Sorbonne Université, INSERM, U1135, Centre..
Late treatment
is less effective
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