I'll do better.
I'll let some actual experts explain for you, including Trump's very own expert Dr Fauci.
To pass the FDA’s muster, and win approval for widespread use, chloroquine and azithromycin will need to undergo rigorous clinical trials with thousands of participants — not a couple dozen, according to the agency’s guidelines.
“Many people in the world saw a small study that is helpful, but not even close to being conclusive,” Isaac Bogoch, a University of Toronto infectious disease specialist, said in a phone interview with CNBC.
Without a formal trial, it’s difficult for doctors to tell whether the drug is actually working or whether a patient is improving from a strong placebo effect, said Eric Feigl-Ding, an epidemiologist and health economist at the Harvard T.H. Chan School of Public Health.
“The president feels optimistic about something,” Fauci said. “What I’m saying is that it might work. ... I’m not saying that it isn’t [effective]. But as a scientist, as we’re getting it out there, we need to do it in a way that while we’re making it available for people who might want the hope that it might work, we are also collecting data.”
https://www.cnbc.com/2020/03/26/trumps-claim-that-malaria-drug-can-treat-coronavirus-gives-hope-but-little-evidence-it-will-work.html.
