![Matej Mikulic](https://cdn.statcdn.com/static/../CMS/contactperson/ERI285_1713877581.png)
Clinical trial success rates by therapeutic area 2020
The probability that a cancer drug will make it from phase I to final approval stood at some 2.4 percent, according to a study published in March 2020. The data is based on clinical success rate models from 2014, 2016, and 2019. Once a cancer drug made it into phase III, the chances to make it to final approval increased to 35.5 percent.