Clinical Trial Participation

Clinical trials are medical studies that pose a question: Does a new treatment and/or test work better than existing standard treatments and/or tests? Each year, thousands of treatments and/or tests are studied in controlled experiments called clinical trials.¹

Clinical trials test may test new:¹

• Drugs
• Devices
• Behavior changes
• Surgical techniques
• Lab tests
• Imaging techniques
• Other treatments or tests

Here are some things you need to know before joining a clinical trial.

The pros and cons of medical studies

Taking part in a treatment clinical trial carries many possible benefits and risks. The benefits of participating in a medical study are complex. You may gain access to a new treatment that is unavailable to the public. If the new treatment works as the doctors and researchers hope it will, you may have a better outcome than people getting standard treatments.^2,3

People who join clinical trials often receive thousands of dollars in free care in exchange for their participation. Also, people in clinical trials help expand medical science and help improve the lives of people who come after them.^2,3

On the other hand, 1 main risk of participating in a clinical trial is that you may be receiving a treatment that is experimental. This does not necessarily mean it is dangerous. It does mean this experimental drug, device, surgery, or other treatment is not yet widely available to the general public in its current form.²

Researchers are holding the clinical trial to learn more about this new treatment’s safety and how well it works. They may not know all of the potential side effects and dangers yet.^2,3

Other risks of joining a clinical trial include:^2,3

• You may receive a placebo or existing standard treatment rather than the new treatment, depending on the type of study.
• The new treatment may not work as you or the doctors thought it would.
• You may have more appointments and tests than normal because you are so closely monitored while in a study.
• Some costs tied to participating may not be covered or your health insurance may not support the cost of the trial.

Who can join a clinical trial?

Each clinical trial has certain guidelines for who can participate. These are called eligibility criteria, and they may include things like:⁴

• Diagnosis
• Age
• Gender
• Tests results
• Whether you use or have used certain medicines
• Other medical conditions
• Disease severity

For example, a trial to test a new prostate cancer drug would require the people in the trial to be males who have prostate cancer. Many trials require people to be at least 18 years old. Some trials are conducted specifically on children and teenagers. Certain trials only want healthy participants.⁴

How does a clinical trial work?

Clinical trials follow a plan, which you may hear called a protocol. This plan is designed to help the doctors and researchers get consistent results that can be measured. Protocols also protect the people who volunteer to join the study by balancing the possible benefits with the risks. The protocol includes:¹

• Reasons for the study
• Goals of the study
• Who is eligible to join
• The number of people needed for the study
• The schedule of tests, procedures, and/or drugs and their dosages
• How long the study will last
• Information to be gathered
• Protections for people who join

All of the relevant information will be discussed before you join a study and included in the informed consent form.^2,5

What is informed consent?

Anyone interested in joining a clinical trial will be given detailed information about the study before signing up. This is called informed consent, and it is required by law.⁵

Informed consent is both a process and a document. It is designed to make sure anyone who joins a clinical trial understands the details and process of participation. This includes the potential benefits and risks of trying whatever is being tested.⁵

Informed consent includes a discussion with your doctor and written information you can take home and read. This information will include details such as:⁵

• What the treatment is
• Any potential benefits and risks
• How long treatment will last
• What tests and treatments are free to you for being a part of the trial
• How often you will need to report to the hospital or clinic
• Whether you will be reimbursed for expenses like travel to and from the site
• Who to contact if you have any questions or side effects to report

Before joining a study, you must sign an informed consent document. But this document is not a contract. Everyone has the right to leave a study at any time. People drop out of clinical trials all the time, for a variety of reasons.^3,5

Who oversees clinical studies?

All studies of a new drug, device, surgery, or other treatment are approved and overseen by what is called an institutional review board (IRB). This group provides oversight and monitoring of each clinical trial to ensure the safety of trial participants.¹

An IRB may include doctors, scientists, researchers, and community members. These people are responsible for making sure each study is managed ethically and that the rights and best interests of people in the study are protected.¹

Each study will also have a principal investigator. The principal investigator is responsible for the accuracy and ethical standards of the entire study. Several government agencies also have the authority to decide whether a clinical study is correctly protecting the people in a study.¹