"Smaller randomised control trials are under way or being registered in several countries. A preprint published on 23 February by researchers in Mexico stated: “In non-critical hospitalized patients with COVID-19 pneumonia, neither ivermectin nor hydroxychloroquine decreases the number of in-hospital days, respiratory deterioration, or deaths.”11 And a small double blind, randomised control trial in Colombia done between July and November 2020 and published in March found that the duration of symptoms was not significantly different compared with the placebo for patients with mild covid-19 symptoms given a five day course of ivermectin at 10 times the recommended dose.12
Salim Rezaie, an emergency medicine physician at Greater San Antonio Emergency Physicians, has analysed several ivermectin studies on his blog Rebel EM.13 His verdict is that the data are still inconclusive.
“We’ve seen lots of poorly done studies initially with other drugs, only to show no mortality benefit when done in better done randomized clinical trials,” he says. “I don’t think physicians have a misunderstanding of the science, but they so badly want a treatment option for a terrible disease it seems we [doctors] continue to do the same thing over and over again.”"