Older adults take a large share of all prescription medicines, yet for decades they were left out of the studies that tested them. That is changing: researchers now actively look for older participants, and many studies are designed specifically for them, from new vaccines to treatments for heart disease, memory loss, and eye conditions. For many seniors, taking part is a way to contribute to better medicine, get close medical attention, and sometimes receive compensation for their time. This guide explains why older adults are needed in research, which studies most often look for them, how compensation and Medicare coverage work, what to ask before joining, and how to find a study near you.
Looking for a clinical trial for yourself or a parent?
Study of new flu vaccine is enrolling adults 65 and older.
Why researchers need people over 60
The body handles medicines differently with age: the kidneys and liver clear drugs more slowly, people often take several medicines at once, and the immune system responds less strongly to vaccines. A medicine tested only in younger adults may work differently, or cause different side effects, in a 75 year old. Yet older adults, especially those over 75, have historically been underrepresented in clinical trials. Since 2019, the National Institutes of Health has required researchers it funds to include people of all ages unless there is a scientific or ethical reason not to, and many sponsors now set out to recruit older participants.
Studies that often look for older adults
Vaccine studies. Flu, RSV, and pneumococcal vaccines are tested in older adults because they are the group these vaccines most need to protect. Right now that includes studies of new flu and RSV vaccines for adults 60 and older, flu vaccine studies for adults 65 and older who have not yet had this season's shot, and pneumococcal vaccine studies for adults up to 75 who have never had a pneumococcal vaccine. More vaccine research is on our vaccine clinical trials page.
Heart and kidney studies. Heart failure, coronary artery disease, atrial fibrillation, and chronic kidney disease become more common with age, and studies of new treatments, usually added to the medicines you already take, enroll many older adults, including a large group of heart studies and kidney disease studies for people not on dialysis.
Memory and brain health. Studies for mild cognitive impairment and Alzheimer's disease, which usually include a family member or friend as a study partner.
Eyes and bones. Studies for macular degeneration and osteoporosis.
Healthy volunteer studies. Some studies need generally healthy older adults to compare with people who have a condition, or to test how a new medicine behaves in older bodies; see our healthy volunteers page.
How compensation works
Some studies offer compensation for time and travel, and study related care is typically provided at no cost to participants. Compensation varies by trial and is always described during the informed consent process before you agree to anything. Many studies also reimburse costs such as parking, mileage, or transit, so taking part does not leave you out of pocket. Our guides explain how clinical trial compensation works and what trials cost participants.
How Medicare works if you join a trial
Joining a study does not mean giving up your usual coverage. Medicare covers the routine costs of qualifying clinical trials, meaning the care you would receive anyway, such as doctor visits, lab tests, and scans, and it also covers the treatment of complications that arise from taking part. The investigational medicine or device itself is usually provided by the study sponsor and is not billed to Medicare. Because coverage depends on the specific study, ask the study team which costs the sponsor covers and which may be billed to your insurance before you agree.
Questions to ask before joining
How many visits are there, and how long does each take? Can the study arrange transport, or reimburse travel? Can I keep taking my current medicines? Who do I call if I feel unwell between visits? Will my own doctor be informed? You can always bring a family member to the screening visit, take the consent form home to read, and leave a study at any time. One rule never changes: a genuine clinical trial never asks you to pay to take part. Our guides cover questions to ask before joining a trial and how trials protect participants.
For adult children helping a parent
Many people searching for studies are looking on behalf of a parent. You can help by checking eligibility together, attending the screening visit, and keeping track of appointments. For memory studies, a family member often serves as the study partner. The decision to take part, though, always belongs to your parent, and the study team will confirm that they understand and agree through informed consent.
How to find a study
AllClinicalTrials.com lists studies recruiting across the US and Canada, and you can filter by condition and location. The application takes about 5 minutes: you answer questions about your age, health, and medicines, and if a study near you looks like a match, the research team contacts you. Nothing is decided until you have gone through informed consent, and participation is voluntary at every step.
Our guide explains how to volunteer for a clinical trial
Three things to have ready: your list of current medicines, your main health conditions, and the date of your most recent vaccines, such as flu and RSV.
Common questions
Are there paid clinical trials for seniors? Yes. Some studies offer compensation for time and travel, and study related care is typically provided at no cost to participants. Compensation varies by trial and is always described during the informed consent process before you agree to anything.
Is there an age limit for clinical trials? Each study sets its own limits. Some have an upper age limit, but many have none, and NIH funded research has been required since 2019 to include people of all ages unless there is a good reason not to.
Does Medicare cover clinical trials? Medicare covers the routine costs of qualifying clinical trials, such as visits and tests you would have anyway, plus treatment of complications. The study medicine itself is usually provided by the sponsor.
Can I join a trial if I take several medicines? Often yes. Many studies are designed for people who already take medicines for conditions such as high blood pressure or heart disease, and the study team reviews your list at screening.
What kinds of trials look for older adults? Vaccine studies, heart and kidney studies, memory and Alzheimer's research, eye and bone studies, and some healthy volunteer studies.
Are clinical trials safe for seniors? Every study is reviewed by an ethics board and monitors participants closely. Risks are explained in the consent form, and you can leave at any time.
Do I need to pay to join a clinical trial? No. A genuine clinical trial never charges participants to take part. Be cautious of any program that asks for payment.
Can my adult child help me apply? Yes. Family members often help with the application and visits, but the decision to take part is always yours, confirmed through informed consent.