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Home   COVID-19 treatment studies for Aspirin  COVID-19 treatment studies for Aspirin  C19 studies: Aspirin  Aspirin   Select treatmentSelect treatmentTreatmentsTreatments
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0 0.5 1 1.5 2+ Mortality 16% Improvement Relative Risk Discharge 17% Progression 21% Progression (b) 5% primary c19aspirin.com Bradbury et al. NCT02735707 REMAP-CAP Aspirin RCT LATE Favors aspirin Favors control
Bradbury, 1,084 patient aspirin late treatment RCT: 16% lower mortality [p=0.05], 17% higher hospital discharge [p=0.08], and 21% lower progression [p=0.02] https://c19p.org/bradbury
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Effect of Antiplatelet Therapy on Survival and Organ Support–Free Days in Critically Ill Patients With COVID-19: A Randomized Clinical Trial
Bradbury et al., JAMA, doi:10.1001/jama.2022.2910, REMAP-CAP, NCT02735707 (history)
22 Mar 2022    Source   PDF   Share   Tweet
RCT 1,557 critical patients, showing significantly lower mortality with aspirin, with 97.5% posterior probability of efficacy.
risk of death, 16.0% lower, HR 0.84, p = 0.05, treatment 165 of 563 (29.3%), control 170 of 521 (32.6%), NNT 30, inverted to make RR<1 favor treatment, Kaplan–Meier, day 90.
risk of no hospital discharge, 16.9% lower, RR 0.83, p = 0.08, treatment 161 of 563 (28.6%), control 167 of 521 (32.1%), NNT 29, adjusted per study, inverted to make RR<1 favor treatment, odds ratio converted to relative risk.
risk of progression, 21.0% lower, RR 0.79, p = 0.02, treatment 204 of 563 (36.2%), control 212 of 521 (40.7%), adjusted per study, odds ratio converted to relative risk, combined death/thrombosis.
risk of progression, 4.8% lower, OR 0.95, p = 0.67, treatment 563, control 521, adjusted per study, inverted to make OR<1 favor treatment, support-free days, primary outcome, RR approximated with OR.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates
Bradbury et al., 22 Mar 2022, Randomized Controlled Trial, multiple countries, peer-reviewed, 73 authors, study period 30 October, 2020 - 23 June, 2021, trial NCT02735707 (history) (REMAP-CAP).
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This PaperAspirinAll
Late treatment
is less effective
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