Location · Colorado
Clinical trials recruiting in Colorado
591 recruiting studies have at least one site in Colorado; 183 accept healthy volunteers. Studies that need a specific condition are included too, so check each listing.
Want the research companies that run paid Phase 1 studies for healthy volunteers? Paid clinical trial companies in Colorado.
591 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