Healthy volunteers · Colorado
Studies for healthy volunteers in Colorado
183 studies have at least one recruiting site in Colorado. These studies say in their official record that they accept healthy volunteers. Many are Phase 1 studies that test how a new medicine is absorbed and tolerated; others recruit healthy people as a comparison group alongside patients.
183 recruiting studiesSource: ClinicalTrials.gov, refreshed October 26, 2026How we list studies
Studies
- RecruitingHealthy volunteersPhase 4
Oral Contraceptive Pill (OCP) Pharmacogenomics
Yale University
- Location
- Aurora, CO + 1 other US site
- Eligibility basics
- Ages 18–45 · Women only
- RecruitingHealthy volunteers
SanaMente: A Peer-Led Program to Reduce Health Disparities in Rural Latino/a Communities
University of Colorado, Boulder
- Location
- Carbondale, CO
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Protocol CAUSE-03 / CHEETAH
National Institute of Allergy and Infectious Diseases (NIAID)
- Location
- Aurora, CO + 7 other US sites
- Eligibility basics
- Ages 6–17
- RecruitingHealthy volunteers
Cannabis Observations on Brain Waves, Retrieval, and Attention: Experiment 4
L. Cinnamon Bidwell
- Location
- Boulder, CO
- Eligibility basics
- Ages 21–40
- RecruitingHealthy volunteers
Integrated Cancer Repository for Cancer Research
University of Nebraska
- Location
- Greenwood Village, CO + 41 other US sites
- Eligibility basics
- Ages 19–110
- RecruitingHealthy volunteers
UNderstanding the Causes Of Idiopathic Scoliosis Through the Longitudinal Analysis of Proteomic Markers: the UNCOIL Study
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 10–17
- RecruitingHealthy volunteers
Advanced SPinal Innovations With Robotics and Enabling Technology Registry
Boston Children's Hospital
- Location
- Aurora, CO + 6 other US sites
- Eligibility basics
- Ages 0 mo–21
- RecruitingHealthy volunteers
Childhood Cancer Survivor Study
St. Jude Children's Research Hospital
- Location
- Aurora, CO + 26 other US sites
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Biomarkers for Peripheral Circadian Clocks in Humans
University of Colorado, Boulder
- Location
- Boulder, CO
- Eligibility basics
- Ages 17–35
- RecruitingHealthy volunteers
Pathophysiology of Circadian Rhythm Delayed Sleep Wake Phase Disorder
University of Colorado, Boulder
- Location
- Boulder, CO + 1 other US site
- Eligibility basics
- Ages 16–40
- RecruitingHealthy volunteers
Testing the Impact of the MOHR Follow-up Support
University of Colorado, Denver
- Location
- Aurora, CO + 5 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Exercise Adherence and Cognitive Decline: Phase 2
University of Colorado, Boulder
- Location
- Aurora, CO + 1 other US site
- Eligibility basics
- Ages 45–65
- RecruitingHealthy volunteers
The Society for Obstetric Anesthesia and Perinatology Research Network General Anesthesia Registry
Yale University
- Location
- Arvada, CO + 32 other US sites
- Eligibility basics
- Ages 15–55 · Women only
- RecruitingHealthy volunteers
SPIROMICS Study of Early COPD Progression (SOURCE)
University of Massachusetts, Worcester
- Location
- Denver, CO + 13 other US sites
- Eligibility basics
- Ages 30–55
- RecruitingHealthy volunteers
Influence of the Gut Microbiome on Blueberry Polyphenol Metabolites
Colorado State University
- Location
- Fort Collins, CO
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Mode of Exercise and Bone Biomarkers in Older Veterans
VA Office of Research and Development
- Location
- Aurora, CO
- Eligibility basics
- Ages 60+
- RecruitingHealthy volunteers
Genomic Predictors of Recurrent Pregnancy Loss
Yale University
- Location
- Aurora, CO + 8 other US sites
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteers
Studies of Human Inference Using On-line Testing
University of Colorado, Boulder
- Location
- Boulder, CO
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Effect of Weight Loss on Intermuscular Adipose Tissue (IMAT) Signaling
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 18–70
- RecruitingHealthy volunteers
Sex Differences in Cold-Induced Changes in Maximal Fat Oxidation
Colorado State University
- Location
- Fort Collins, CO
- Eligibility basics
- Ages 18–40
- RecruitingHealthy volunteers
Comparison of Patient-reported Pain After Initial Archwire Placement
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 12+
- RecruitingHealthy volunteers
Miniscrew Stability and Peri-implant Inflammation When Precoated K21 vs Ethanol Control
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 12+
- RecruitingHealthy volunteers
The Early and Late Contribution of Fasting and Postprandial Triglycerides on Newborn Subcutaneous and Intrahepatic Fat in Pregnancy
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 0 mo–39
- RecruitingHealthy volunteers
BeSMART Secure Storage Counseling in the Inpatient Setting
Vanderbilt University Medical Center
- Location
- Aurora, CO + 1 other US site
- Eligibility basics
- Ages 18+
Who these studies look for
“Healthy” is decided at screening, not by you. Sites usually check vital signs, blood and urine tests, an ECG, your medications and sometimes your BMI or smoking status. A study can still turn you away for reasons that have nothing to do with being unwell, such as timing or a full roster.
Matching a page like this one never means you qualify. Each research team decides eligibility at screening.
Questions
Do healthy volunteer studies pay?
Many do, because volunteers give up time and follow strict schedules, but amounts are set by each study and are usually only confirmed by the research site. When a record states an amount we show the exact wording; otherwise we say compensation is not disclosed.
What happens at a screening visit?
Expect consent paperwork first, then a health questionnaire, vital signs, blood and urine samples and often an ECG. You can ask questions and withdraw at any time, before or after you sign.