Under $500 Paid Clinical Trials
581 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 261–280 of 581 studies
Recruiting
Not Applicable
Dance-Mindfulness Intervention for Well-Being in Recreational Adults
Health PromotionHealthy Volunteers
University of Thessaly160 enrolled1 locationNCT07262177
Recruiting
Not Applicable
Reliability of Force Measurement Within the Carbon Fiber Orthosis Proximal Cuff
HealthyPeripheral NeuropathyAnkle Foot Orthosis (AFO)
University of Iowa60 enrolled1 locationNCT06127264
Recruiting
Not Applicable
fMRI Evaluation of Auricular Acupuncture Targets: An Exploratory Clinical Study
Healthy Participants
Jiangsu Taizhou People's Hospital32 enrolled1 locationNCT07332962
Recruiting
Not Applicable
Outdoor Science Education and Child Well-being in Primary Schools: Protocol for a Cluster Randomized Controlled Trial on Learning, Connection to Nature, Eco-anxiety, and Stress
Healthy Children
Université de Sherbrooke1,000 enrolled1 locationNCT07147634
Recruiting
Not Applicable
Effects of Combined Heat Application and Acupressure to the Carotid Artery Region on Cerebral Blood Flow in Healthy Adults
Healthy Subjects/Volunteers
Pusan National University Yangsan Hospital9 enrolled1 locationNCT07324226
Recruiting
Not Applicable
Kidney Blood Flow During Exercise in Older African American Adults
Healthy
University of Massachusetts, Boston12 enrolled1 locationNCT07029165
Recruiting
Not Applicable
Protein Requirements for Active Children
Healthy
Arkansas Children's Hospital Research Institute30 enrolled1 locationNCT04573439
Recruiting
Not Applicable
Neural Control of Kidney Blood Flow During Exercise in African American Adults
Healthy
University of Massachusetts, Boston32 enrolled1 locationNCT03981640
Recruiting
Not Applicable
Effect of Physical Activity and/or Probiotics on Body Composition and Physiological Parameters in Women
Healthy Women
Centre Hospitalier Régional d'Orléans120 enrolled1 locationNCT06746220
Recruiting
Not Applicable
A Study to Determine Safety, Pharmakokinetics and Efficacy of the Different Doses of VL-SE-01 in Healthy Participants.
Healthy Population
Vedic Lifesciences Pvt. Ltd.200 enrolled6 locationsNCT06473246
Recruiting
Not Applicable
Ayahuasca, Esketamine and Premenstrual Symptoms
Healthy Women Volunteers
University of Sao Paulo20 enrolled1 locationNCT07317232
Recruiting
Not Applicable
Circadian Rhythms and Time Perception in Healthy Adults During Constant Wakefulness
Healthy VolunteersCircadian RhythmSleep Deprivation+1 more
University of Aarhus30 enrolled1 locationNCT07294781
Recruiting
Not Applicable
Ayahuasca, Esketamine and Body Image Perception
Healthy Women Volunteers
University of Sao Paulo20 enrolled1 locationNCT07317219
Recruiting
Not Applicable
Effects of Staged Adapted Inclusions in Infant Cereals on Oral-motors Patterns of 6-24 Month-old Children
HealthyInfant and Young Child Feeding
Société des Produits Nestlé (SPN)153 enrolled2 locationsNCT07318506
Recruiting
Not Applicable
Methionine Intake Microbiota
Healthy
Centre hospitalier de l'Université de Montréal (CHUM)40 enrolled1 locationNCT07283328
Recruiting
Not Applicable
The MOBY Study: Efficacy of Birth Mobility
Cesarean section rateHealthyLabor Duration+1 more
Vibwife AG714 enrolled1 locationNCT07052331
Recruiting
Not Applicable
Eccentric Muscle Training, Stimulation, and Biomarkers in SCI
HealthySpinal Cord Injuries
Ohio State University49 enrolled2 locationsNCT05337982
Recruiting
Not Applicable
Effects of BLa80 and LRa05 on the Gut Microbiota Metabolite Profile of Healthy Individuals
Healthy Individuals
Wecare Probiotics Co., Ltd.375 enrolled1 locationNCT07287306
Recruiting
Not Applicable
Oxalate and Citrate in Humans - Response to Citrate
HealthyKidney Stone
University of Chicago24 enrolled1 locationNCT06944223
Recruiting
Not Applicable
Difference in Acute Responses of Vascular Function to Moderate-intensity and High-intensity Interval Training in Healthy and Prehypertensive Individuals
HealthyPrehypertension (Elevated Blood Pressure) or Hypertension
University of Ljubljana45 enrolled1 locationNCT07048509