Great writeup by Chessmaster, especially this part:

"The data is actually so good that in spite of this dramatic shift in patient mortality rate they were able to pull out some amazing clinical trial results that demonstrate a tremendous mortality benefit. Keep in mind that even if a drug shows a modicum of efficacy like tocilizumab did there is an excellent chance of approval. Please keep reading, and you will see that there is no other conclusion that can be drawn except that the drug works and that a statistical anomaly should not condemn thousands of people to their deaths."