Abstract
Platelet-activating factor (PAF) has been implicated in a range of inflammatory conditions and an appropriate antagonist should prove to be a useful therapeutic agent. Although PAF antagonists have yet to be commercialised, a number are undergoing clinical trials. In disease states such as asthma there is evidence for the involvement of a variety of inflammatory mediators and the recent literature describes a variety of approaches to incorporating more than one mode of action in a single compound. This review is primarily an update on PAF antagonist patent publications for the period July 1993 to February 1995. Reference has been made to earlier compounds to provide an update on clinical progress and for comparison with newer antagonists.

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