1. A method of identifying a plurality of subjects for a clinical trial for a therapy of interest, the method comprising: identifying a candidate set of molecular profiles in a stored first plurality of molecular profiles, wherein each molecular profile in said candidate set of molecular profiles has measurements for a discriminating set of cellular constituents that match the measurements of said discriminating set of cellular constituents in a responder set of biological samples, said responder set being responsive to said therapy of interest, thereby identifying said plurality of subjects for said clinical trial from those subjects from which said candidate set of molecular profiles were derived; wherein each respective molecular profile in said stored first plurality of molecular profiles comprises measurements of a first plurality of cellular constituents from a respective biological sample in a first plurality of biological samples obtained from a first plurality of subjects; and said discriminating set of cellular constituents is identified from those cellular constituents in said first plurality of cellular constituents whose measurement values taken prior to exposure to said therapy of interest discriminates between said responder set of biological samples and a nonresponder set of biological samples, said nonresponder set being nonresponsive to said therapy of interest.