Drug developers can now tap into an array of new preclinical technologies including some that give them the ability to interrogate compounds in a broad biological context-a systems biology approach. In this issue, we profile four start-ups with technologies designed to predict drugs' efficacy: Champions Biotechnology, Cytox, Immuneering and Rhenovia.

Each week, "The Pink Sheet" presents commentary on some of the week's most interesting business deals, contributed by the editors of the IN VIVO blog. Visit the blog at 1http://invivoblog.blogspot.com/.

For most diagnostics companies, the prospect of premium pricing has been an elusive dream. The health care landscape is peppered with expensive novel drugs priced to underscore their clinical impact on patient care. A similar strategy for pricing novel diagnostics with significant clinical impact makes sense, especially since many of them are driving the decisions to deploy novel drugs in the first place. Now, strong system economics arguments are becoming more mainstream and payors are beginning to reward companies with reimbursement of their premium priced tests, based upon rigorous clinical arguments supporting the diagnostics' benefits to clinical decision-making and compelling economic arguments customized to each major payer.