Gizmodo reports on a drug that’s working so well the FDA shut down the clinical trial … so that the people who had been getting the placebo could get the real thing, instead.

1,088 prostate cancer patients in 12 countries participated in the trial. Each man received the standard low-dose prednisone treatment, with half also getting Zytiga and the other receiving a placebo. Researchers almost immediately discovered that, in the Zytiga group, the cancer progressed at only half the speed as the control group, with patients reporting significantly less pain and a noticeable delay before they had to undertake chemo. The results are so stupendous that the trial was cancelled to allow every patient access to the drug.