This is an archived version of the Handbook. For the current version, please go to or search for this chapter here. National and international trials registers

Box 6.2.h lists national and international trials registers.


In addition, Drugs@FDA provides information about most of the drugs approved in the US since 1939. For those approved more recently (from 1998), there is often a ‘review’, which contains the scientific analyses that provided the basis for approval of the new drug.


Other national and regional drug approval agencies may also be useful sources of trial information.