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 volunteers
Countermeasures to Circadian Misalignment
Colorado State University
- Location
- Fort Collins, CO
- Eligibility basics
- Ages 18–35
- RecruitingHealthy volunteers
Pilot Study of the YES-CAN! Program to Prevent Youth Nicotine Vaping
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 9+
- RecruitingHealthy volunteers
TrialNet Pathway to Prevention of T1D
University of South Florida
- Location
- Denver, CO + 16 other US sites
- Eligibility basics
- Ages 2–45
- RecruitingHealthy volunteers
Early Diagnosis of Pancreatic Cancer Duodenal Fluid-Based Biomarker Exploratory Study
Do Hyun Park
- Location
- Aurora, CO + 1 other US site
- Eligibility basics
- Ages 19+
- RecruitingHealthy volunteers
Perceptual Influences From Smoking Cannabis: an Experimental Study
University of Colorado, Boulder
- Location
- Boulder, CO
- Eligibility basics
- Ages 21–65
- RecruitingHealthy volunteers
Heterogeneity of Vascular Adaptations to Exercise With Aging in Women and Men
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Alveolar Macrophage Programming Following Endotoxin Exposure
National Jewish Health
- Location
- Denver, CO
- Eligibility basics
- Ages 18–50
- RecruitingHealthy volunteersPhase 4
Effect of Omalizumab in the Skin of Food Allergy Patients
National Jewish Health
- Location
- Denver, CO
- Eligibility basics
- Ages 1–55
- RecruitingHealthy volunteers
Thermogenenic Responses to Fasting and Overfeeding in Women
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 18–65 · Women only
- RecruitingHealthy volunteers
Passive Heat Therapy for Lowering Systolic Blood Pressure and Improving Vascular Function in Mid-life and Older Adults
University of Colorado, Boulder
- Location
- Boulder, CO
- Eligibility basics
- Ages 40+
- RecruitingHealthy volunteers
Mindfulness Application Effects on Mental Health Symptoms in Children With Severe Tinnitus and Misophonia
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 10–18
- RecruitingHealthy volunteers
The ME&MG Digital Solution for Autonomous Assessment of Myasthenia Gravis
Ad scientiam
- Location
- Aurora, CO + 8 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
A Comparison of Two School Based Interventions to Manage Anxiety in Autistic Students
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 7–15
- RecruitingHealthy volunteers
The Genetics of Pulmonary Fibrosis
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Puberty, Diabetes, and the Kidneys, When Eustress Becomes Distress (PANTHER Study)
Petter Bjornstad
- Location
- Aurora, CO + 1 other US site
- Eligibility basics
- Ages 8–14
- RecruitingHealthy volunteers
Stop, Focus, Plan, and Change: Predicting Parent and Child Responses to a Brief, Telehealth Parent Training
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 3–5
- RecruitingHealthy volunteers
Improving Maternal Sleep and Mental Health
University of Colorado, Colorado Springs
- Location
- Colorado Springs, CO
- Eligibility basics
- Ages 18–45 · Women only
- RecruitingHealthy volunteers
Creative Arts Program to Reduce Burnout in Healthcare Professionals
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 18–85
- RecruitingHealthy volunteersPhase 2
Changes in Hemorrhage With Prophylactic Oxytocin for Dilation and Evacuation
University of Colorado, Denver
- Location
- Denver, CO
- Eligibility basics
- Ages 18–55 · Women only
- RecruitingHealthy volunteers
Patient Preferences for Barrett's Esophagus and Esophageal Cancer Screening Tests
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 18–89
- RecruitingHealthy volunteersPhase 4
Contraceptive Hormone and Reward Measurement (CHARM Study)
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 18+ · Women only
- RecruitingHealthy volunteers
Chronic Cannabis Smoking, Oxidative Stress and the Pulmonary Innate Immune Response
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 18–55
- RecruitingHealthy volunteers
Non-invasive Evaluation of Upper and Lower Body Function With Showmotion
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteers
Role of Endothelial Function in SCI CVD Risk
Craig Hospital
- Location
- Englewood, CO
- Eligibility basics
- Ages 18–89
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.