
Considering Participation in a Clinical Trial? Here's Where to Start
Before joining a clinical trial, patients should understand the study's purpose, its risks and benefits, and how to find trials matched to their specific condition.
By
Lana Pine| Published on August 19, 2026
Fact checked by:
Afton Woodward,David Coleman, M.D.6 min read
Clinical trials are how new treatments, medications and devices move from the lab into everyday patient care. For patients, joining one can mean access to a treatment not yet widely available, or a chance to contribute directly to the future of care for their condition. But deciding whether to participate is a personal decision, and one that deserves careful thought, the right questions, and a clear understanding of what’s involved.
Why Clinical Trials Matter
Every treatment currently used in medicine, from routine medications to advanced therapies, has gone through clinical trials before reaching patients. Clinical trials work to find the best ways to prevent, diagnose or treat diseases and medical conditions. Trials serve different purposes, too. Some test whether a new treatment works better than the current standard of care, while others study side effects, quality of life, dosing, or whether an existing treatment can be given more safely or conveniently. Participating doesn’t just potentially benefit the individual patient. It contributes data that can shape treatment guidelines and options for people facing the same diagnosis in the future.
Understanding Informed Consent
Before anyone joins a trial, they go through a process called informed consent. This involves an an explanation of the purpose and length of the trial, details of required visits, medications and medical procedures, as well as the expected outcomes, potential benefits and possible risks. A member of the study team reviews these elements of the trial and answers any questions before a patient decides whether to participate. The patient and a member of the research team sign and date an informed consent document attesting to the details of the discussion.
It’s worth remembering that informed consent isn’t a onetime contract. It’s an ongoing process, and participation in a clinical trial remains voluntary throughout, meaning a patient can choose to stop at any time. Institutional review boards (IRBs), provide oversight of the informed consent language and details of the trial to be sure that the rights, welfare and privacy of participants are protected.
Patients don’t have to review the consent form on the spot, either. According to health reporting from HealthCentral, patients can ask to take the informed consent form home, review it with a family member or care partner, and follow up later to discuss anything that feels confusing or concerning. Patients can also request the document in a language they’re most comfortable reading.
Key Questions to Ask Before Enrolling
Once a patient is considering a specific trial, a short list of core questions can help clarify what participation would involve:
- What is the purpose of this study, and what are the investigators hoping to learn?
- What will be required of me, including visits, tests and procedures during and after the study?
- What are the possible risks, side effects and benefits?
- Will I know if I’m receiving the experimental treatment or a placebo?
- How will my response be evaluated?
- Can I continue taking my current medications during the trial?
- What happens if I want to stop participating?
- Will I or my health insurance be financially responsible for the visits or experimental agents administered as part of the trial? Who can I contact if I have a question during the trial or to resolve a financial question?
- How and when will I learn about the trial’s results?
How to Find a Suitable Clinical Trial
For patients interested in searching independently, ClinicalTrials.gov is the primary public resource. It’s a free database from the National Library of Medicine containing current information on more than 400,000 research studies worldwide, and it doesn’t collect any personal information to use.
To narrow a search to relevant options, patients can enter the name of their condition, disease or disorder into the main search field, then use the site’s filtering tools to narrow by location, recruitment status and eligibility. Selecting “recruiting or not yet recruiting studies” under the status filter can help patients see which trials are actively looking for participants. Patients who can’t travel far can enter their city and an acceptable travel distance to keep results local, while those who can travel more broadly can leave those fields blank to see nationwide options.
Beyond ClinicalTrials.gov, patients can also ask their doctor about relevant trials, since physician referrals are one of the primary ways researchers recruit participants, or reach out to a patient advocacy organization connected to their specific condition, which may maintain its own list of relevant, actively enrolling studies. Nearly all medical schools and medical centers maintain a list of active clinical trials by general disease category and can be accessed on their respective websites.
Making the Decision With Support
Before contacting a clinical trial team directly, it’s important to talk with a doctor or other trusted health care professional, who can help confirm eligibility and weigh the potential risks and benefits specific to that patient’s health history. A clinical trial isn’t right for everyone, and eligibility criteria can rule some patients out even if they’re interested. But for those who qualify and choose to participate, asking the right questions and receiving clear answers can make the experience satisfying and meaningful.

