CancerTrials
National Cancer Institute clinical trials information center.
CenterWatch
A comprehensive listing of current clinical trials under various
disease categories mostly in the USA.
National
Research Register
UK register which includes data from the Clinical Trials Register
of the Medical Research Council and the NHS Centre for Reviews
and Dissemination.
US Clinical
Trials Database From the US National Institutes of Health & the Food
and Drug Administration. Information on over 4000 studies in
the USA on serious illnesses and about participating in a trial.