A clinical trial is a type of clinical research that compares one treatment with another. It may involve patients or healthy people, or both. -- UK National Health Service
Search for "clinical trial" and a disorder name.
Search for a disorder and either curative or palliative therapies.
"Alzheimer's Disease" AND "clinical trial" AND (palliative OR curative)
On the advanced search page, type in your search terms. Select "Clinical Trial" under the "Publication Type" menu.
Enter your search terms and click "Search." Once you see the results, click the text titled "Clinical Trial" under the "Article Types" option on the left side of the page.