RCT 333 hospitalized patients in Argentina, 228 treated with convalescent plasma, showing no significant differences in clinical status or mortality. NCT04383535
Simonovich et al., 11/24/2020, Randomized Controlled Trial, Argentina, South America, peer-reviewed, 39 authors.
risk of death, 4.1% lower, RR 0.96, p = 1.00, treatment 25 of 228 (11.0%), control 12 of 105 (11.4%).
risk of 7-point scale status, 19.0% lower, RR 0.81, p = 0.40, treatment 228, control 105, RR approximated with OR.
Effect extraction follows pre-specified rules
prioritizing more serious outcomes. For an individual study the most serious
outcome may have a smaller number of events and lower statistical signficance,
however this provides the strongest evidence for the most serious outcomes
when combining the results of many trials.