Prophylaxis trial reporting lower hospitalization/ER and symptomatic cases, and faster recovery with 1,200mg subcutaneous casirivimab with imdevimab. The same trial has updated results available in .
risk of hospitalization/ER, 88.9% lower, RR 0.11, p = 0.06, treatment 0 of 753 (0.0%), control 4 of 752 (0.5%), relative risk is not 0 because of continuity correction due to zero events (with reciprocal of the contrasting arm), day 29.
risk of symptomatic case, 81.4% lower, RR 0.19, p < 0.001, treatment 11 of 753 (1.5%), control 59 of 752 (7.8%), day 29.
recovery time, 62.5% lower, relative time 0.37, p < 0.001, treatment 753, control 752, relative time with symptoms.
time to viral-, 69.2% lower, relative time 0.31, p < 0.001, treatment 753, control 752, relative time with high viral load.
O'Brien et al., 4/12/2021, Double Blind Randomized Controlled Trial, multiple countries, multiple regions, peer-reviewed, 36 authors.
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 significance,
however this provides the strongest evidence for the most serious outcomes
when combining the results of many trials.