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 81–100 of 580 studies
Recruiting
Not Applicable
Intermittent Fasting on Body Fat and Quality of Life
Healthy
Loma Linda University70 enrolled1 locationNCT06307275
Recruiting
Not Applicable
The Effects of PeptiStrong and Whey on Muscle Function In Older Adults
longevityHealthy AgeingMuscle Function+4 more
Nuritas Ltd80 enrolled1 locationNCT07528469
Recruiting
Not Applicable
Cognition and Behavior With Sham Accelerated TMS
Healthy Participants
University of California, Davis25 enrolled1 locationNCT07397858
Recruiting
Not Applicable
Does Listening to Music Alter the Running Mechanics?
Healthy
Università degli Studi di Sassari40 enrolled2 locationsNCT03506282
Recruiting
Not Applicable
INDIVIDUALIZED DUAL-TASK TRAINING FOR BALANCE AND MOBILITY IN OLDER ADULTS
Postural BalanceHealthy Older AdultsDual Task Exercises in Elderly People+1 more
Sezen Karaborklu Argut48 enrolled1 locationNCT07448961
Recruiting
Not Applicable
Adding Polyphenol-rich Pulses to Daily Diet Improves Skin Health by Reshaping the Skin Microbiome
Healthy
University of Florida50 enrolled1 locationNCT06538415
Recruiting
Not Applicable
Clinical Explorative Optical Breast Investigations
Benign Breast TumorsMalignant Breast TumoursHealthy
Region Skane90 enrolled1 locationNCT06857669
Recruiting
Not Applicable
Investigating the Neuropsychological Effects of 5-HT2a Antagonism
Healthy
University of Oxford80 enrolled1 locationNCT07022366
Recruiting
Not Applicable
LPFC Organization in Emotion-Duration Difference Estimation
Healthy
University of California, Santa Barbara50 enrolled1 locationNCT06276400
Recruiting
Not Applicable
Effects of Respiratory Muscle Training on Tongue Muscle Function
Healthy
Université Catholique de Louvain60 enrolled3 locationsNCT06627283
Recruiting
Not Applicable
Comparison of the Perception of Non-technical Skills
Healthy
University of Valencia100 enrolled1 locationNCT06340529
Recruiting
Not Applicable
Collagen Peptides and Cellular Aging
longevityHealthy AgingBiological Ageing
University of Vienna125 enrolled1 locationNCT07456449
Recruiting
Not Applicable
Adipose Tissue Blood Flow in Aging Humans
HealthyAging
Mayo Clinic24 enrolled1 locationNCT06096532
Recruiting
Not Applicable
Recognizing Emotional Neglect and Help-Seeking Intention Among Adolescents in Brussels
Help-Seeking BehaviorEmotional NeglectHealthy Adolescents in School-based Population
Vrije Universiteit Brussel500 enrolled1 locationNCT07365891
Recruiting
Not Applicable
Assessing the Impact of a Leucine Enriched Whey Protein vs Isonitrogenous Whey on Muscle Protein Synthetic Responses in the Rested and Acute Post Exercise States in Older Adults
Healthy Male Volunteers Over 65
University of Nottingham30 enrolled1 locationNCT06971822
Recruiting
Not Applicable
Non-invasive BCI-controlled Assistive Devices
Traumatic Brain InjuryHealthyMovement Disorders+6 more
University of Texas at Austin100 enrolled1 locationNCT05183152
Recruiting
Not Applicable
Physiological and Neurocognitive Responses to Multisensory Food Cues in VR
Healthy Participants
Marmara University34 enrolled1 locationNCT07320209
Recruiting
Not Applicable
Influence of Menstrual Cycle Phase on Adaptations to Sprint Interval Training
Healthy
University of Toronto24 enrolled1 locationNCT06744517
Recruiting
Not Applicable
Effect of Hyperoxygenated Environment on Maximal Muscle Strength
Healthy Lifestyle
Assaf-Harofeh Medical Center48 enrolled1 locationNCT07558928
Recruiting
Not Applicable
A Comparative Clinical Study to Assess Pain Score and Wound Healing Following Fractional Ablation With a DFG Laser and CO2 Laser
Healthy
Massachusetts General Hospital23 enrolled1 locationNCT06295471