A Cure for Cancer Might Be on the Way — and It Could Turn Healthcare Investing Upside Down

Every now and then, I’ll see an article online about some scientist who has supposedly made a breakthrough discovery that could cure cancer. Almost exactly one year ago, I read about Israeli scientists who believed they had identified peptides — which are similar to proteins but smaller — that could cure cancer.

The chairman of the board of the biotech researching the potential therapy even told The Jerusalem Post that his company “will offer in a year’s time a complete cure for cancer.” I was very skeptical at the time (as were many others). And, sure enough, the Israeli...