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 221–240 of 581 studies
Recruiting
Not Applicable
Building Core Competencies of Taiwanese Care Food Specialists: Curriculum Design and Outcome Assessment
Healthy
Chang Gung Memorial Hospital150 enrolled1 locationNCT07384481
Recruiting
Not Applicable
Continuous vs. Intermittent Rt-fMRI Neurofeedback Training of the Anterior Insula
Healthy
University of Electronic Science and Technology of China90 enrolled1 locationNCT07389486
Recruiting
Not Applicable
Cognitive-Motor Incorporated Training and Its Relations in Cerebrovascular Diseases With Cognitive and Motor Impairments
HealthyStrokeMoyamoya Disease
National Taiwan University Hospital210 enrolled1 locationNCT07144930
Recruiting
Not Applicable
Language and Brain Rhythms
Healthy Volunteers
Hospices Civils de Lyon356 enrolled1 locationNCT04457622
Recruiting
Not Applicable
A Randomized, Placebo Controlled Trial of L Max in Healthy Adult Athletes
Healthy Normal Athletes
Climatic, Inc.120 enrolled1 locationNCT07102680
Recruiting
Not Applicable
FAXAGE: Fasting And Exercise To Slow Aging In Humans
AgingHealthy AgingAging Frailty
University of Copenhagen240 enrolled1 locationNCT07207044
Recruiting
Not Applicable
The Impact of 12 Week Retention of Nutrients on Skin and the Perception of Physical Health Status
Skin healthHealthy VolunteersHealth Status+2 more
ChinaNorm120 enrolled1 locationNCT07383974
Recruiting
Not Applicable
Real-time Neurofeedback Training of the Medial Prefrontal Cortex Based on Imagined Social Support
HealthyNeurofeedback
University of Electronic Science and Technology of China60 enrolled1 locationNCT07364084
Recruiting
Not Applicable
Inspiratory Muscle Training in Amateur CrossFit® Athletes
Healthy
Federal University of the Valleys of Jequitinhonha and Mucuri94 enrolled1 locationNCT06807957
Recruiting
Not Applicable
Acute Effects of Structured Exercise and Static Stretching on Vascular Function, Neuromuscular Performance, and Metabolic Regulation in Adults
HealthyHealthy ParticipantsStatic Stretching+3 more
University of Palermo27 enrolled1 locationNCT07364149
Recruiting
Not Applicable
Gut Microbiome Pill
Healthy
NYU Langone Health10 enrolled1 locationNCT07243756
Recruiting
Not Applicable
Evaluation of the Acceptability of a Multi-strain Probiotic Supplement (Smile Probio 45B) in Healthy Adults
Healthy
University of Thessaly40 enrolled1 locationNCT07362251
Recruiting
Not Applicable
REcovery From DEXmedetomidine-induced Unconsciousness
AnesthesiaHealthyConsciousness, Level Altered
Massachusetts General Hospital12 enrolled1 locationNCT06003127
Recruiting
Not Applicable
Intramuscular Temperature on the Echo-textural Characteristics
Healthy Subjects
Cardenal Herrera University30 enrolled1 locationNCT06145646
Recruiting
Not Applicable
Neural Bases of Motivation
Healthy VolunteersMotivationAction
Hospices Civils de Lyon204 enrolled1 locationNCT07251816
Recruiting
Not Applicable
The Effect of Exercise on Metabolic Alteration
Sedentary BehaviorAdultHealthy Participants
Shenzhen Institutes of Advanced Technology ,Chinese Academy of Sciences80 enrolled1 locationNCT06923163
Recruiting
Not Applicable
Royal Ancient Oats™ Study
Healthy ParticipantsHealthy Glucose
Standard Process Inc.38 enrolled1 locationNCT07371598
Recruiting
Not Applicable
The Power of Belief: Expectation-driven and Placebo Modulation of Empathic Pain
Healthy Participants
University of Electronic Science and Technology of China120 enrolled2 locationsNCT07367672
Recruiting
Not Applicable
The Effects of Transcutaneous Auricular Vagus Nerve Stimulation (taVNS) on Anxiety Responses and Emotional Regulation
Healthy Male and Female Volunteers
University of Electronic Science and Technology of China140 enrolled1 locationNCT07369908
Recruiting
Not Applicable
Sensori-motor and Perceptual Functions of the PPC.
Healthy VolunteersOptic Ataxia
Hospices Civils de Lyon160 enrolled1 locationNCT03286686