First off, I don’t think any tried and tested COVID-19 treatments are being suppressed. I do think that too many people believe there is a miracle cure out there and use it as an excuse to ignore restrictions, and go to large crowded simchas and minyanim without masks. Because of that, there is some suppression going on regarding unsavory people who are promoting various forms of magic which is extremely dangerous as it leads to very unsafe behavior.
Sorry about not giving you the details, it’s hard to parse them from just reading the study. You can google it yourself, I think everything you want to know is there. The study was trying to mimic the circumstances of those doctors who claimed high “cure” rates for COVID-19 so they don’t contain the flaws you say exist in other studies.
I mentioned anti-Semitism because I did a bit of searching and found that a lot of the stories floating around WhatsApp and Facebook claiming that HCQ studies have been repressed originate from anti-Semitic social media accounts and websites. It just goes to show you can’t trust everything you read online.
The reason I’m focused on a double blind RCT study is because it’s the only way to ensure that HCQ+Zinc is effective. COVID-19 effects so many different people so differently. If a few doctors say “I treated a lot of people with this concoction and only one person died” that’s pretty much a meaningless statement. What we need is a full blown study that can show that so few deaths and hospitalizations will happen with only the drugs being given, and it’s much worse when the drugs are not given. The studies I listed are basically that and they show that HCQ+Zinc does have some effect, but it’s far from a miracle drug.