Clinical trials

Clinical trials are research studies that look at new ways to prevent, find and treat cancer. They can help us understand cancer better or discover what works best for particular types of cancer or groups of people.

Types and phases of clinical trials

There are different types of clinical trials, such as treatment trials and prevention trials. Clinical trials for new treatments are always tested through several steps called phases. Learn about types and phases of clinical trials.

Understanding the clinical trial and informed consent

Before you decide to join a clinical trial, you need to understand the protocol. A protocol is a written description of the trial. It explains why the trial is being done, how it will be conducted and how your safety will be protected. If you agree to take part, you will be asked to sign the informed consent form.

Deciding to be in a clinical trial

Choosing to participate in a clinical trial is a personal decision. Before deciding to take part, it's important to learn all that you can about the trial.

Enrolling your child in a clinical trial

Most children with cancer are offered treatment through a clinical trial at some time during their illness, and many of them participate. But it can be hard to decide if a clinical trial will be the best treatment for your child.

Clinical trial benefits, risks and costs

Clinical trials follow very strict scientific and ethical standards that protect the participants' health, safety and privacy. Each clinical trial involving a new therapy or a new way of delivering an existing treatment must be approved by Health Canada, the hospital or clinic where the study takes place.

When the clinical trial is finished

Some clinical trials go on for many years. While your part in the trial may be done, all participants have to finish treatment and follow-up before any results can be analyzed. This could take a while because not everyone started at the same time. When the trial is over, it takes time for the researchers to look carefully at all the results before making any conclusions.

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Medical disclaimer

The information that the Canadian Cancer Society provides does not replace your relationship with your doctor. The information is for your general use, so be sure to talk to a qualified healthcare professional before making medical decisions or if you have questions about your health.

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