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
Pancreas Ultrasound Imaging in type1 Diabetes
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteers
Timing of Energy Availability on Menstrual Cycle Function
University of Colorado, Colorado Springs
- Location
- Colorado Springs, CO
- Eligibility basics
- Ages 18–40 · Women only
- RecruitingHealthy volunteers
Adipocyte-Derived Extracellular Vesicles, Weight Loss, and Endothelial Function
University of Colorado, Boulder
- Location
- Boulder, CO
- Eligibility basics
- Ages 40+
- RecruitingHealthy volunteers
HDClarity: a Multi-site Cerebrospinal Fluid Collection Initiative to Facilitate Therapeutic Development for Huntington's Disease
University College, London
- Location
- Englewood, CO + 4 other US sites
- Eligibility basics
- Ages 11–75
- RecruitingHealthy volunteers
Exogenous and Endogenous Risk Factors for Early-onset Colorectal Cancer
San Raffaele University
- Location
- Denver, CO + 1 other US site
- Eligibility basics
- Ages 18–49
- RecruitingHealthy volunteers
Improving Socket Fit in Female and Male Veterans With Transtibial and Transfemoral Amputation
VA Office of Research and Development
- Location
- Aurora, CO
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteers
Cognitive-Behavioral Therapy and Exercise Training in Adolescents At-Risk for Type 2 Diabetes
Colorado State University
- Location
- Aurora, CO + 1 other US site
- Eligibility basics
- Ages 12–17 · Women only
- RecruitingHealthy volunteers
Hybrid Effectiveness-Implementation Trial of an Executive Functioning Intervention for Children's Mental Health Services
San Diego State University
- Location
- Aurora, CO + 1 other US site
- Eligibility basics
- Ages 6–99
- RecruitingHealthy volunteers
Early Intervention to Promote Cardiovascular Health of Mothers and Children
JHSPH Center for Clinical Trials
- Location
- Aurora, CO + 8 other US sites
- Eligibility basics
- Ages 18+ · Women only
- RecruitingHealthy volunteers
A Global Study of the PETAL Consortium
Massachusetts General Hospital
- Location
- Denver, CO + 9 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Brain Stimulation Effects on Cognitive Task Performance
Colorado State University
- Location
- Fort Collins, CO
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteersPhase 3
Evaluating Whether an Educational Website Called Current Together After Cancer (CTAC) Improves Follow-up Care for Colorectal Cancer Survivors
SWOG Cancer Research Network
- Location
- Colorado Springs, CO + 374 other US sites
- Eligibility basics
- Ages 18+
- RecruitingHealthy volunteers
Understanding Practices of Lactation and Infant Feeding Together With Women With HIV in the United States
International Maternal Pediatric Adolescent AIDS Clinical Trials Group
- Location
- Aurora, CO + 1 other US site
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Neonatal Platelet Transfusion Threshold Trial
NICHD Neonatal Research Network
- Location
- Aurora, CO + 19 other US sites
- Eligibility basics
- Any age listed
- RecruitingHealthy volunteers
Role of Microvascular Insulin Resistance and Cardiorespiratory Fitness Diabetes
University of Colorado, Denver
- Location
- Aurora, CO + 1 other US site
- Eligibility basics
- Ages 30–55
- RecruitingHealthy volunteers
PPROM Registry (Preterm Premature Rupture of Membranes)
American Alliance for pProm Support
- Location
- Denver, CO
- Eligibility basics
- Ages 14–55 · Women only
- RecruitingHealthy volunteers
Implementation of a ColoRectal Cancer Screening Tool in US Primary Care Practices - Usual Quality Improvement (10 Clinics) vs Normalization Process Theory-Participatory Learning in Action (10 Clinics)
University of Kansas Medical Center
- Location
- Aurora, CO
- Eligibility basics
- Ages 45–75
- RecruitingHealthy volunteers
Colorado Community Engagement Alliance
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 18–90
- RecruitingHealthy volunteers
The Effectiveness of Emergency Room Protocols for Treating Hyperthermia
University of Colorado, Colorado Springs
- Location
- Colorado Springs, CO
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteers
Triple EIT (Electrical Impedance Tomography)
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 0 mo–25
- RecruitingHealthy volunteers
An Investigation of Attentional and Inhibitory Processes During Active Visual Search in Humans
University of Colorado, Denver
- Location
- Denver, CO
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteers
Knee Osteoarthritis Rehabilitation Through Rotational Inertia
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 40–70
- RecruitingHealthy volunteers
Study to Investigate Vagus Nerve Stimulation to Augment Executive Function in Healthy and Cognitively Impaired Populations
University of Colorado, Denver
- Location
- Aurora, CO
- Eligibility basics
- Ages 18–65
- RecruitingHealthy volunteersPhase 2
Computerized Cognitive Behavioral Therapies for Suicide Prevention and Depression
VA Eastern Colorado Health Care System
- Location
- Aurora, CO
- Eligibility basics
- Ages 18–65
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.