Who the hell is Simoncini? Do you think that he's the only one to cure cancer? lol
And do you really think that no conspiracy is true?
Think again, why would Allah let such an illness exist ( where you don't even choose if you want it or not, except the food you eat and where you stay, but some people may have no choice ) without a cure?
There are lots of diseases for which we know no cure. By that "logic", do you think that big pharma and all the world's physicians are conspiring to suppress the knowledge about cures for diseases like Parkinson's, Alzheimer's, multiple sclerosis, lupus, rheumatoid arthritis, the common cold, the flu, Creutzfeldt-Jakob, diabetes, asthma and so on?
Real conspiracies surely exist, but crying "conspiracy" doesn't prove anything or give any knowledge. A well conducted randomized trial on the other hand would actually give some answers about this issue.