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Find clinical trials for healthy volunteers – page 2

recruiting
131
countries
24
conditions
302

544 healthy volunteer trials match your criteria

Study of Fludeoxyglucose (18F) PET Imaging of Brain Metabolism in Patients with Persistent Post‑COVID Syndrome

Registered drugNo placebo
Countries:The NetherlandsThe Netherlands
  • Participants:18–64 years · Healthy volunteers
  • Substances:Fludeoxyglucose (18F)

Safety and Tolerability of Tenofovir Alafenamide Dose Escalation in Healthy Adults for Epstein‑Barr Virus Infection

Registered drugNo placebo
Countries:NorwayNorway
  • Participants:18–64 years · 65+ years · Healthy volunteers
  • Substances:Tenofovir Alafenamide

Rabies

Recruiting

Rabies Prophylaxis in Healthy Volunteers After Rabies Virus (Inactivated) Strain Flury LEP Vaccination

Registered drugNo placebo
Countries:BelgiumBelgium
  • Participants:18–64 years · Healthy volunteers
  • Substances:Rabies virus (inactivated) strain Flury LEP

Total-Body PET with [18F]Flutemetamol in Patients with Post-COVID Syndrome (Long COVID)

Registered drugNo placebo
Countries:The NetherlandsThe Netherlands
  • Participants:18–64 years · Healthy volunteers
  • Substances:Flutemetamol (18F)

Epilepsy

Recruiting

[18F]CPFPX PET in Patients With Drug-Resistant Epilepsy and Healthy Subjects

InvestigationalNo placebo
Countries:FranceFrance
  • Participants:18–64 years · Healthy volunteers
  • Substances:[18F]CPFPX

A study using [11C]ORM-13070 to examine the effects of aging and Parkinson's disease on specific brain receptors.

InvestigationalNo placebo
Countries:FranceFrance
  • Participants:18–64 years · 65+ years · Healthy volunteers
  • Substances:1-[[(3S)-2,3-DIHYDRO-1,4-BENZODIOXIN-3-YL]METHYL]-4-[3-((11C)METHOXYMETHYL)-2-PYRIDINYL]PIPERAZINE

A study to evaluate the use of leflutrozole to improve semen quality in men with non-obstructive azoospermia

InvestigationalNo placebo
Countries:DenmarkDenmark
  • Participants:18–64 years · Healthy volunteers

Study to evaluate the effect of omaveloxolone on mitochondrial function in patients with Friedreich's ataxia

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

Dementia+3

Recruiting

Using [18F]DED PET imaging to study brain changes in patients with Alzheimer's disease, CADASIL, and other forms of dementia.

InvestigationalNo placebo
Countries:SpainSpain
  • Participants:18–64 years · 65+ years · Healthy volunteers
  • Substances:[18F]DED

A study to evaluate the effects of CSX-1004 on breathing difficulties caused by fentanyl in healthy adults and people with opioid use disorder

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

A study to compare weekly or event-based use of doxycycline to prevent sexually transmitted infections in men who have sex with men and transgender women using HIV prevention medication.

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

A study comparing different zinc doses for the treatment of Wilson disease in healthy participants.

Registered drug
Countries:DenmarkDenmark
  • Participants:18–64 years · 65+ years · Healthy volunteers
  • Substances:Copper (64CU) chloride

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.