Author: Mayla Borba; Fernando de Almeida Val; Vanderson Sousa Sampaio; Marcia Araujo Alexandre; Gisely Cardoso Melo; Marcelo Brito; Maria Mourao; Jose Diego Brito Sousa; djane Baia-da-Silva; Marcus Vinitius Farias Guerra; Ludhmila Hajjar; Rosemary Costa Pinto; Antonio Balieiro; Felipe Gomes Naveca; Mariana Xavier; Alexandre Salomao; Andre Siqueira; Alexandre Schwarzbolt; Julio Henrique Rosa Croda; Mauricio Lacerda Nogueira; Gustavo Romero; Quique Bassat; Cor Jesus Fontes; Bernardino Albuquerque; Claudio Daniel-Ribeiro; Wuelton Monteiro; Marcus Lacerda
Title: Chloroquine diphosphate in two different dosages as adjunctive therapy of hospitalized patients with severe respiratory syndrome in the context of coronavirus (SARS-CoV-2) infection: Preliminary safety results of a randomized, double-blinded, phase IIb clinical trial (CloroCovid-19 Study) Document date: 2020_4_11
ID: ifxm3j4y_12
Snippet: Out of a pre-defined 440 patients sample size, 81 patients were enrolled. The high dosage CQ arm presented more QTc>500ms (18.9%), and a trend toward higher lethality (39%) than the lower dosage. Fatality rate until day 13 was 27% (95%CI=17.9-38.2%), overlapping with the CI of historical data from similar patients not using CQ (95%CI=14.5-19.2%). In 27 patients with paired samples, respiratory secretion at day 4 was negative in only six patients .....
Document: Out of a pre-defined 440 patients sample size, 81 patients were enrolled. The high dosage CQ arm presented more QTc>500ms (18.9%), and a trend toward higher lethality (39%) than the lower dosage. Fatality rate until day 13 was 27% (95%CI=17.9-38.2%), overlapping with the CI of historical data from similar patients not using CQ (95%CI=14.5-19.2%). In 27 patients with paired samples, respiratory secretion at day 4 was negative in only six patients (22%).
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