Volunteering for a Clinical Trial FAQs

All clinical trials have guidelines about who can participate. Before joining a clinical trial, a volunteer must qualify for the study. The factors that allow volunteers to participate in a clinical trial are called “inclusion criteria” and the factors that disallow volunteers from participating are called “exclusion criteria.” These criteria can include age, gender, the type and stage of a disease, previous treatment history, and other medical conditions.

Some research studies seek participants with specific illnesses or conditions to be studied in a clinical trial, while others require healthy participants. It is important to note that inclusion and exclusion criteria are used to identify appropriate participants, promote participants’ safety, and ensure that researchers learn the information they need.

Patients considering participating in a clinical trial should talk about it with their physicians and medical caregivers. Potential volunteers should also understand the credentials and experience of the staff and the facility involved in conducting the study.

Questions to ask a physician or medical caregiver:

Questions about the clinical trial

• Why is the clinical trial being done?
• What is the purpose of this clinical trial?
• Who is sponsoring the clinical trial?
• Where can I get access to the clinical trial?

Questions about your participation

• What other treatment options do I have?
• Does the clinical trial involve a placebo or a treatment that is already on the market?
• What tests and treatments are done as part of the clinical trial?
• How will the tests in the clinical trial compare to tests I would have outside of the clinical trial?
• How often do I have to go to the office or clinic where the clinical trial is being done?
• Will I have to be in the hospital during the clinical trial?
• How long is the clinical trial going to last?
• What has been learned about the clinical trial treatment and are any clinical trial results published?
• If the treatment works for me, can I keep using it after the clinical trial ends?
• Can anyone find out whether I am participating in the clinical trial?
• Can I talk to other people in the clinical trial?
• Will I receive any follow-up care after the clinical trial has ended?
• What will happen to my medical care if I stop participating in the clinical trial?
• Will I be able to see my own doctor?
• Does the physician/investigator have any financial or special interest in the clinical trial?

Questions about the risks and benefits of the clinical trial

• What are the possible short- and long-term side effects of the treatment?
• How do the possible risks and benefits of the clinical trial compare with standard treatments for my condition?

Questions about the costs of the clinical trial

• Do I have to pay for any part of the clinical trial?
• What are the charges likely to be?
• Will my insurance cover these costs?
• Are there ways I can get my expenses paid?

In some studies, participants receive a physical examination and their medical histories are reviewed by either the study physician or a research staff member once they are enrolled in the study. The volunteers’ health will continue to be monitored during and after the trial. A detailed description of what’s expected of volunteers will be outlined in consent forms along with specific clinical trial information.

Millions of volunteers participate in government- and industry-sponsored clinical trials each year. Prior to agreeing to participate, every volunteer has the right to know and understand what will happen during a clinical trial. This is called informed consent and it is a process that can help you decide whether or not participating in a trial is right for you. When you give written consent to participate in a clinical trial, you are acknowledging that you understand and accept all aspects of the research study—including any risks or benefits involved.

Volunteers in a clinical trial participate in the development of medical therapies that may offer better treatments and even cures for life-threatening and chronic diseases. However, there are risks involved.

Possible benefits for volunteers:

• Play an active role in their health care.
• Gain access to research treatments before they are widely available.
• Obtain medical care at health care facilities during the trial.
• Help others by contributing to medical research.

Possible risks for volunteers:

• There may be unpleasant, serious, or even life-threatening side effects to experimental treatment.
• The experimental treatment may not be effective.
• The protocol may require more time and attention than a non-protocol treatment, including trips to the study site, more treatments, hospital stays, or complex dosage requirements.

Please note: volunteers may withdraw from a study at any time for any reason.

Access to personal information is usually available to the investigator and research team conducting the clinical trial. In some circumstances, the IRB overseeing the research and the sponsor or contract research organization coordinating the trial will also have access to personal information. This is explained more specifically in the consent form that participating volunteers are asked to sign. As a clinical trial progresses, researchers report the results of the trial at scientific meetings, to medical journals, and to various government agencies.

After a study phase is complete, the data is collected to determine the drug’s effectiveness, if it is safe and if there are any side effects. Depending on the results, researchers then determine whether to stop testing or move to the next phase of study. After phase III of a study is complete, researchers decide if the results are medically important and may submit them to journals for peer-review. Data then may be submitted to the Food and Drug Administration (FDA) for approval.

If a drug is approved, pharmaceutical companies may continue to conduct studies that compare the new drug—in terms of its safety, effectiveness, and cost—to other drugs already on the market or assess a drug’s long-term effectiveness and its impact on the quality of a person’s life.