Resolves based on expert consensus at the time of market resolution. Requires that a sufficient amount of evidence accumulates demonstrating that the therapy effectively prevents certain cancer types from harming those who take the therapy in any way.

While select therapies may already be approved that meets these conditions, this question is specifically related to an approval within the start and end date of the market.

By "cure", I mean that the cancer can be treated in a relatively harmless procedure (such as an oral drug), resulting in complete remission for almost all patients (~80%).