I am working on a project and looking for R packages which contain free datasets from clinical trials. A good example is the AIDS Clinical Trials Group Study 175 (ACTG 175), whose R package can be found here.
Is there an easy way to find more such open-access datasets/packages, which are accessible easily through R packages? I would appreciate both individual suggestions or general strategy advice. Clinical trials with >2 treatment arms are preferable (like the AIDS dataset), but 2-arm trials are still helpful.