The UK Clinical Research Network provides an online database of clinical trials in the United Kingdom. This database includes information about the condition being treated, the intervention being investigated, and the lead investigator. This database might be useful for drugs development students and those researching clinical interventsions. It is not aimed at the general public – information about clinical trials for people affected by medical conditions can be found on websites from relevant charities and support groups, e.g., Cancer Research UK’s Trials and Research site.
The US government maintains a similar site covering clinical trials both in the US and worldwide.