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 121–140 of 580 studies
Recruiting
Not Applicable
Decoding Emotional Dynamics in Bipolar Disorder
Healthy (Controls)Bipolar Disorder I or II
Laureate Institute for Brain Research, Inc.72 enrolled1 locationNCT07221864
Recruiting
Not Applicable
The Validation Study of Bioelectronics
HealthyHealth Behavior
University of North Carolina, Chapel Hill22 enrolled1 locationNCT05397951
Recruiting
Not Applicable
Optimizing INtrinsic Capacity for Functional INdependence and to Impede FrailTY in Older Adults: Adaptation of the WHO-ICOPE for Healthy Ageing in Singapore
Healthy AgeingFrailty in Older AdultsIntrinsic Capacity+1 more
Sengkang General Hospital600 enrolled1 locationNCT07477561
Recruiting
Not Applicable
A Randomized Controlled Trial of a Multi-domain Smartphone Intervention Incorporating Generative AI for Healthy Older Adults
Healthy Longevity
Tatsuhiro Hisatsune300 enrolled1 locationNCT07524478
Recruiting
Not Applicable
Cerebello-motor Neuromodulation After Stroke. CERSTIM.
HealthyStroke
Institut National de la Santé Et de la Recherche Médicale, France45 enrolled2 locationsNCT06599931
Recruiting
Not Applicable
Examining Olive Oil Extract on Knee Comfort and Function
Healthy Adult MaleJoint DiscomfortHealthy Adult Females
Applied Food Sciences Inc.168 enrolled1 locationNCT07514013
Recruiting
Not Applicable
Influence of Training Session Duration on Improvements in Physiological Resilience to Exercise
Healthy VolunteersEndurance Exercise
Centre Hospitalier Universitaire de Saint Etienne40 enrolled1 locationNCT07504003
Recruiting
Not Applicable
Dinner Time for Obesity and Prediabetes
ObesityHealthyPrediabetes
Johns Hopkins University32 enrolled2 locationsNCT05745441
Recruiting
Not Applicable
Nicotinamide Adenine Dinucleotide Responses to a Nutritional Supplement
Healthy Adult
Shaklee Corporation34 enrolled1 locationNCT07428889
Recruiting
Not Applicable
Vagus Nerve Stimulation for Reaction Time
Healthy Subjects (HS)
Youngstown State University30 enrolled1 locationNCT07528742
Recruiting
Not Applicable
Pilot Study of Personalized Aperiodic Transcranial Alternating Current Stimulation in Antenatal Depression (PandA-tACS)
Major Depressive DisorderHealthy (Controls)Antenatal Depression+1 more
University of North Carolina, Chapel Hill10 enrolled1 locationNCT06979154
Recruiting
Not Applicable
Analysis Of The Effect Of A Fine Manual Skills Intervention In A Specific Context On The Linguistic Processing of Healthy Young Adults
Healthy Participants
Federal University of Health Science of Porto Alegre40 enrolled2 locationsNCT07232862
Recruiting
Not Applicable
Monitoring Changes in Blood Circulating Metabolites Using Minimally Invasive Techniques
Healthy Participants
Örebro University, Sweden35 enrolled1 locationNCT07527793
Recruiting
Not Applicable
A Study on Body Posture and Eye Movements During Screen Usage on Adults Aged 18 to 65 Wearing Various Types of Eyeglasses
Healthy Adults
Essilor International69 enrolled1 locationNCT07499180
Recruiting
Not Applicable
Effectiveness of Intensive Tutoring vs. Flexible Self-Learning on Digital Health Literacy and Self-Efficacy for "My Health Bank" App Use Among Adults Over 50
Digital health literacyHealthy Aging
Tri-Service General Hospital235 enrolled2 locationsNCT07515495
Recruiting
Not Applicable
This Study Evaluates Skin Response Following Application of a Collagen-based Material in Healthy Adult Volunteers Using a Standardized Skin Prick Test. Skin Responses Will be Assessed at Multiple Time Points Following Application, and the Study is Intended to Evaluate Dermal Safety.
Healthy Adult
SerenaGroup, Inc.8 enrolled1 locationNCT07473674
Recruiting
Not Applicable
GLOW Study: Effects of Triple Protein in Women
Healthy Women
University of North Carolina, Chapel Hill40 enrolled1 locationNCT07526571
Recruiting
Not Applicable
"Xuong Tan Lac Than" Exercise for Range of Motion and Muscle Endurance
HealthyPhysical Fitness
University of Medicine and Pharmacy at Ho Chi Minh City34 enrolled1 locationNCT07520071
Recruiting
Not Applicable
Use of Incentives for Stressful Medical Procedures
Healthy
Jennifer Staab, MS, CCLS187 enrolled3 locationsNCT06254898
Recruiting
Not Applicable
Predictive Diagnosis of Ulcero-Necrotizing EnteroColitis in Premature Babies Using an Artificial Intelligence Approach Based on Early Analysis of the Fecal Microbiota
Healthy ControlNecrotizing Enterocolitis (NEC)
University Hospital, Clermont-Ferrand1,000 enrolled5 locationsNCT06727877