Why do only some drug reports have Literature Evaluations?
 
Literature evaluations are commissioned for drugs that are in active development. They are a review of the available literature and act as an expert guide to the published information and personal communications on the drug, highlighting references of particular scientific or commercial interest.

Evaluations are essentially mini-reviews which provide unique insight into the commercial potential of a drug, its therapeutic and economic viability. They are written by experts (industrial and academic scientists) within a relevant field and may also be subject to peer review.

A drug is a candidate for evaluation if it is in active development and there is sufficient scientific literature available. Priority for evaluations is given to those drugs which are at an advanced stage of development or of particular interest with regard to chemical class, mechanism of action, clinical trial results and commercial expectations.