Clinical trial

A research study that carefully tests whether a new medical approach is safe and helps people.

A clinical trial is a research study that tests a new medical approach — a drug, a combination, a device, or a new way of using an existing treatment — to learn whether it’s safe and whether it actually helps people. Trials are how today’s proven treatments were shown to work in the first place.

Every trial follows a written plan called a protocol, and moves through ordered steps called phases. Joining a trial doesn’t usually mean giving up the current standard of care — many trials compare a new approach against it, or add something to it. Taking part is always your choice, and you can ask as many questions as you need first.