The trials test their leader, who himself will never see the new world established, though he makes it all possible.

Clinical trials, also called research studies, test new treatments in people with cancer.

That trial, now getting under way, will test the treatment reported today as well as two other approaches.

A few trials tested 300 mg/day with more modest but still statistically significant results.

These trials test many types of treatments, such as new:

As of 2003 only three controlled clinical trials had tested "older adults with memory problems."

The database would also make it easier for patients to learn of clinical trials testing drugs that could save their lives.

His trial tested a part of the law that made it a crime to provide "expert advice or assistance" to terrorist groups.

Even if these experimental vaccines prove safe, they will have to pass trials to test their effectiveness, and such products are still years away.

Only a few clinical trials have tested antiviral medicines in children.