Opportunities for Healthy Volunteers

Contribute to medical research by participating in studies designed for healthy participants in your selected area.

Find Healthy Volunteer Studies by Location

Discover research opportunities worldwide for healthy participants

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Matched clinical trials

  • Study on the Effectiveness of High-Dose vs. Standard-Dose Quadrivalent Influenza Vaccine in Preventing Flu in Adults Aged 65-79 in Galicia, Spain

    Recruiting

    3 1 1 1
    Investigated Diseases:
    Spain
  • A study using [18F]RO6958948 PET imaging to examine brain tau protein deposits in people at risk of Alzheimer’s Disease

    Recruiting

    2 1 1
    Investigated Diseases:
    Spain
  • Study Comparing Progesterone and Ganirelix for Preventing LH Surge in Women Undergoing Ovarian Stimulation for Egg Donation

    Recruiting

    3 1 1 1
    Spain
  • Effect of Metformin Hydrochloride on Inflammation and Aging Biomarkers in Pre‑diabetic Patients

    Not yet recruiting

    3 1 1 1
    Investigated Diseases:
    Investigated Drugs:
    Spain
  • Using fludeoxyglucose (18F) in PET/CT imaging to diagnose and monitor cardiovascular device infections

    Not yet recruiting

    3 1 1 1
    Investigated Diseases:
    Investigated Drugs:
    Spain
  • Study on the Impact of Acetylcysteine and Drug Combination on Kidney Function in Living Donor Kidney Transplant Patients

    Not yet recruiting

    3 1 1 1
    Investigated Diseases:
    Spain
  • Study on the Effectiveness and Safety of IVX-A12 Vaccine for Preventing Respiratory Infections in Adults Aged 60 and Older

    Not yet recruiting

    3 1
    Belgium Bulgaria Estonia Finland Germany Poland +2
  • Study on Immune Response and Safety of Measles, Mumps, Rubella, and Varicella Vaccine in Healthy Children Aged 4 to 6 Years

    Not yet recruiting

    2 1 1 1
    Latvia Spain
  • Contraceptive efficacy, safety and tolerability of drospirenone 4 mg (LPRI‑CF113) in healthy women of reproductive age over 13 cycles

    Not yet recruiting

    3 1 1
    Investigated Drugs:
    Czechia Finland Hungary Poland Romania Spain +1
  • Bioequivalence study of ezetimibe and atorvastatin tablets versus film‑coated tablets in healthy volunteers

    Not recruiting

    1 1 1 1
    Spain
  • A study to compare how hydrochlorothiazide tablets work in healthy volunteers

    Not recruiting

    1 1 1 1
    Investigated Drugs:
    Spain
  • Efficacy, Safety, and Immunogenicity of mRNA-1647 Vaccine in Preventing Primary Cytomegalovirus Infection in CMV-Seronegative Females Aged 16-40

    Not recruiting

    3 1 1
    Investigated Drugs:
    Belgium Estonia Finland France Germany Italy +1