The transnational Lazarus tale of Provenge (sipuleucel-T), a pioneering cellular immunotherapy from Dendreon Pharmaceuticals LLC, is opening what could be a significant new chapter with the initiation of a trial designed to prove the treatment can halt prostate cancer progression, reducing or delaying the need for definitive therapies such as surgery and radiation. Expected to begin enrolling later this year, top-line data from the study are due by 2023.