A clinical trial is a research program done with patients to evaluate a new medical treatment, drug, or device. The purpose of a breast cancer clinical trial is to find new and improved methods of treating the disease. Clinical trials make it possible to apply the latest advances to patient care.
During a breast cancer clinical trial, researchers, usually doctors, use the best available treatment as a standard by which to assess new treatments. These treatments may be a new drug, surgery, or an alternative medicine.
WebMD senior writer Miranda Hitti interviewed breast cancer survivors as part
of a series for Breast Cancer Awareness Month. The series, called “Me & the
Girls,” explores the personal stories of these women after they were diagnosed
with breast cancer.
Breast cancer survivor Zunilda Guzman, 39, lives in the Miami area. Guzman
noticed a lump on her chest in April 2008 and thought it might be related to
her breast implants. She asked her gynecologist to schedule a mammogram, and
First, researchers study new treatment options in the laboratory, in test tubes, and in laboratory animals. If results are promising, these treatments are further evaluated in a small group of people and, finally, in a larger clinical trial.
When a new medical treatment is studied for the first time in people, no one knows exactly how it will work. With any new treatment for breast cancer, there are possible risks as well as benefits. Clinical trials help doctors discover the answers to these questions:
Is the treatment safe and effective?
Is the treatment potentially better than ones already available?
What are the side effects of the treatment?
Does the treatment have any possible risks?
How well does the treatment work?
What is the maximum tolerable dose of the drug?
What Are the Different Types of Breast Cancer Clinical Trials?
All clinical trials are done in phases, each designed to find out specific information. Each new phase of a clinical trial builds on information from previous stages.
Participants may be eligible for clinical trials in different phases, depending on their health. Most clinical trial participants take part in phase III.
Phase I clinical trials study the safety of the new breast cancer treatment. It is determined what doses are safe to give and by what route -- by mouth, injection into a vein, or muscle -- and how often it should be given. Phase I clinical trials usually enroll a very small number of people.
Phase II clinical trials happen if the treatment is found to be safe in the phase I trial. Phase II studies look at whether the treatment is effective, in people with advanced disease, and in certain cancers. Phase II clinical trials generally involve fewer than 100 people.
Phase III clinical trials compare the new treatment with the standard treatment to determine which one is superior. These trials may include hundreds of people across the country. If a treatment does well in phase III studies, it may receive an FDA approval for use.
What Are the Advantages of Participating in a Clinical Trial?
By participating in a breast cancer clinical trial:
You may receive a potential treatment before it is widely available to the public.
You can provide researchers with the information they need to continue developing new procedures and introducing new treatment methods.
The treatment being studied may be more effective than the standard treatments.
Your treatment costs may be less, since many of the tests and doctor visits that are directly related to the clinical trial are paid for by the company or agency sponsoring the study. Be sure to discuss treatment costs with the doctors and nurses running the clinical trial.