Under $500 Paid Clinical Trials
580 studies
Dietary, survey, and observational studies typically compensate under $500 per participant.
Compensation amounts shown are typical ranges for this study type — not guaranteed amounts. Actual compensation is set by each study sponsor and documented in the informed consent form. ClinicalTrials.gov does not include a structured compensation field.
Showing 101–120 of 580 studies
Recruiting
Not Applicable
Oxytocin's Effects on Real Time-fMRI Neurofeedback Training of Anterior Insula Activity
Healthy
University of Electronic Science and Technology of China80 enrolled1 locationNCT07559656
Recruiting
Not Applicable
BrainLive Connect: Volunteer Training Programme
Healthy Adults Aged 50 and Over
The University of Hong Kong180 enrolled1 locationNCT07544875
Recruiting
Not Applicable
Study on Multi-Modality Models of Cardiac Function in Healthy Individuals
Healthy Volunteers Only
Shanghai Ruiwei Digital Technology Co. Ltd.270 enrolled1 locationNCT06952673
Recruiting
Not Applicable
The Impact of Trunk and Lower Extremity Electrical Stimulation on Pelvic Floor Muscle Strength in Females
Healthy WomenMuscle StrengthPELVIC FLOOR
Okan University60 enrolled1 locationNCT07554612
Recruiting
Not Applicable
Defining Retinal Structures Using Hyperspectral Retinal Imaging
Retinal diseasesHealthy VolunteersAge-Related Macular Degeneration+2 more
Center for Eye Research Australia1,000 enrolled1 locationNCT07555574
Recruiting
Not Applicable
iVS-1 Probiotic Intervention Targeting Biological Aging in Midlife Adults
Healthy AgingAnti Aging
Synbiotic Health80 enrolled1 locationNCT07407894
Recruiting
Not Applicable
Functional Near-infrared Spectroscopy in Unconscious Patients
Nervous System DiseasesHealthy Subjects
Emanuela Keller30 enrolled2 locationsNCT04746820
Recruiting
Not Applicable
Supraspinatus Tendon Acute Effects After Two Exercise Exposures: a Crossover Randomized Trial.
Shoulder PainHealthy Adult
University of Florida24 enrolled1 locationNCT07489937
Recruiting
Not Applicable
Sodium vs Potassium Education to Improve Vascular Health
Healthy
Florida State University32 enrolled1 locationNCT07221448
Recruiting
Not Applicable
Temporal Interference Stimulation for Social Cognition
Healthy (Controls)
Columbia University10 enrolled1 locationNCT06607432
Recruiting
Not Applicable
Acute Amino Acid Response of Proprietary Beverages
Healthy
Shaklee Corporation24 enrolled2 locationsNCT07534020
Recruiting
Not Applicable
tVNS and Approach-Avoidance Behavior in Anhedonia and Anxiety
Healthy ParticipantsAnxiety Disorders (With High Anxiety Symptoms)Depressive Disorders (With High Anhedonia Symptoms)+1 more
Dr. Nils B. Kroemer104 enrolled1 locationNCT07476469
Recruiting
Not Applicable
Effect of Transcranial Random Noise Stimulation on the Performance in Language Tasks
healthy adult participants
Adrian Guggisberg90 enrolled1 locationNCT07554105
Recruiting
Not Applicable
Recovery After Fatigue in Young Athletes: Comparison Between TECAR Therapy and Cycle Ergometer"
Muscle FatigueHealthy Adult
Maimónides Biomedical Research Institute of Córdoba48 enrolled1 locationNCT07547566
Recruiting
Not Applicable
Intermittent Hypoxic Training (IHT) Versus Hyperbaric Oxygen Therapy (HBOT) for Aerobic Performance
Healthy Active Athletes
Assaf-Harofeh Medical Center66 enrolled1 locationNCT05447416
Recruiting
Not Applicable
Determinants of Warfarin Metabolism
Healthy
Hadassah Medical Organization1,000 enrolled1 locationNCT00162474
Recruiting
Not Applicable
Health Web Te@m (1.0) an Interprofessional Web-based Group Intervention Supporting Healthy Ageing
Healthy Older Adults
Luleå Tekniska Universitet27 enrolled1 locationNCT07545915
Recruiting
Not Applicable
Breathwork and Stress: Investigating the Mechanisms of Action and Effectiveness of Breathing Interventions in Modulating the Psychophysiological Response to Acute Stress Test
healthy adult participantsHealthyAcute Stress Reaction+1 more
Medical University of Bialystok120 enrolled1 locationNCT07529379
Recruiting
Not Applicable
Usability of the Regen Gait Therapy Robot in Healthy Adults
healthy adult participants
University of Texas at Austin10 enrolled1 locationNCT07547683
Recruiting
Not Applicable
A Technical Innovation of Prismatic Adaptation Test in Healthy Subject, in Favour of Autonomy and Independence in Daily Life Following a Brain Injury
Healthy Volunteers
Hospices Civils de Lyon480 enrolled1 locationNCT03807401