Skip to content
Clinical Trials – home

Find clinical trials for healthy volunteers – page 31

recruiting
132
countries
24
conditions
301

535 healthy volunteer trials match your criteria

COVID-19

Not recruiting

Study on the Safety and Immune Response of PHH-1V81 Booster for Adults Vaccinated Against COVID-19

Registered drugNo placebo
Countries:SpainSpain
  • Participants:18–64 years · 65+ years · Healthy volunteers
  • Substances:Raxtozinameran

Varicella

Not recruiting

Study on the Safety of a New Chickenpox Vaccine (GSKVX000000025896) Compared to Varicella Virus Oka/Merck Strain in Healthy Children Aged 12-15 Months

Registered drugNo placebo
Countries:BulgariaBulgaria
  • Participants:0–17 years · Healthy volunteers
  • Substances:GSKVX000000025896

COVID-19

Not recruiting

Study on Immune Responses to COVID-19 Vaccines: Raxtozinameran, Bretovameran, and Drug Combination for COVID-19 Patients

Registered drugNo placebo
Countries:FinlandFinland
  • Participants:18–64 years · 65+ years · Healthy volunteers
  • Substances:Elasomeran

Oesophageal achalasia

Not recruiting

Study of citalopram effectiveness in reducing chest pain for adults with achalasia

Registered drug
Countries:The NetherlandsThe Netherlands
  • Participants:18–64 years · Healthy volunteers
  • Substances:Citalopram

Anxiety+1

Not recruiting

Study on the Bioequivalence of Oxazepam 10 mg Orodispersible Tablets Compared to Standard Tablets in Healthy Volunteers

Registered drugNo placebo
Countries:PortugalPortugal
  • Participants:18–64 years · Healthy volunteers
  • Substances:Oxazepam

Metabolic surgery

Not recruiting

Study on Morphine, Lidocaine, and Naloxone for Patients with Obesity and Sleep Apnea

Registered drugNo placebo
Countries:DenmarkDenmark
  • Participants:18–64 years · Healthy volunteers
  • Substances:Lidocaine Hydrochloride

Cognitive disorder+1

Not recruiting

Study on Metformin and Lifestyle Changes to Prevent Dementia in Older Adults at Risk

Registered drug
Countries:FinlandFinland
  • Participants:18–64 years · 65+ years · Healthy volunteers
  • Substances:Metformin Hydrochloride

Study on the Effects of Leniolisib in Patients with Activated Phosphoinositide 3-Kinase Delta Syndrome

InvestigationalNo placebo
Countries:GermanyGermany
  • Participants:18–64 years · Healthy volunteers
  • Substances:Leniolisib Phosphate

Study on Rosuvastatin and Atorvastatin for Preventing Heart Disease in Patients with High Genetic Risk

Registered drugNo placebo
Countries:EstoniaEstonia
  • Participants:18–64 years · 65+ years · Healthy volunteers
  • Substances:Atorvastatin

Study on the Safety and Immune Response of V116 Vaccine for Pneumococcal Disease in Adults Aged 50 and Older

Registered drugNo placebo
Countries:GermanyGermany
  • Participants:18–64 years · 65+ years · Healthy volunteers
  • Substances:Abc-15A-116

Measles

Not recruiting

Study on the Effectiveness of Skin Patch Vaccination with Measles, Mumps, and Rubella Vaccine in Healthy Volunteers

Registered drugNo placebo
Countries:DenmarkDenmark
  • Participants:18–64 years · Healthy volunteers
  • Substances:Measles Virus Edmonston-Enders Strain (Live, Attenuated) Produced In Chick Embryo Cells

Influenza

Not recruiting

Study on Influenza Immunity: Comparing Nasal FluMist and Injectable Vaxigriptetra Vaccines for Adults

Registered drug
Countries:DenmarkDenmark
  • Participants:18–64 years · Healthy volunteers
  • Substances:INFLUENZA A VIRUS, A/CROATIA/10136RV/2023 (H3N2) LIKE STRAIN X-425A, INACTIVATED

About healthy volunteer clinical trials

Participate in Healthy Volunteer Clinical Trials in Europe

Clinical trials are a crucial part of developing new medications and therapies. Healthy volunteer clinical trials allow researchers to study the safety and effects of new treatments in people without chronic health conditions. These trials are most often early phase clinical trials, which are the first step in testing a new therapy in humans.

What Participation Involves

Anyone interested in volunteering must meet specific criteria: being healthy, adult, free from chronic illnesses or addictions, and not currently enrolled in another clinical trial. Participants provide informed consent, which explains all procedures, potential risks, and what to expect during the trial.

During the trial, participants receive full medical monitoring and access to diagnostic tests. In some trials, participants may receive compensation for their time, although in Europe, paid clinical trials for healthy volunteers are not standard and vary depending on the regulations and policies of the research site. Often, only travel costs and minor inconveniences are reimbursed.

Benefits of Participating

  • Support the advancement of medical research and new treatments.
  • Take part in human clinical trials and gain insight into the drug development process.
  • In some trials, receive financial compensation or reimbursement for travel.
  • Access modern medical care and diagnostic procedures.
  • Make a meaningful contribution to science and future patient care.

Finding Clinical Trials

Our website provides a searchable database to find healthy volunteer clinical trials across Europe. You can explore trials that match your location and schedule using the search tool above. By registering through our platform, you can apply directly and find trials suitable for you.

Participating in healthy volunteer clinical trials is a regulated and closely monitored way to contribute to scientific progress. While are paid clinical trials safe is a common question, all reputable trials in Europe are conducted under strict ethical oversight, ensuring participants are monitored by qualified medical staff at every stage.

Make Your Contribution Today

Joining a trial as a healthy volunteer lets you support the development of safe and effective therapies for the future. Use our search tool to explore available paid clinical trials for healthy volunteers and find the right trial for you. Your participation is valuable, monitored, and can make a real difference in medical research.

Clinical Trials Concierge

Prefer not to search? Our Concierge searches the trials for you.

Tell us about your condition – we search every trial in Europe and connect you with the right site.