Cannabis Observations on Brain Waves, Retrieval, and Attention: Experiment 4
for Cannabis
1 location in Boulder
Sponsor: L. Cinnamon Bidwell
Sex: All·Age: 21 - 40·Accepts healthy volunteers
Code: NCT07679581·Recruiting·Listed Jul 1, 2026
Paid Clinical Trials in Boulder, CO
As of August 2026, 64 paid clinical trials are recruiting in Boulder, Colorado. Compensation typically covers time, travel, and study visits, with stipends ranging from modest amounts for short outpatient studies to several thousand dollars for long or inpatient protocols.
Boulder offers studies at sites including Rocky Mountain Cancer Centers-Boulder for conditions such as Aging, Activities of Daily Living, Breast Cancer, Cardiovascular Diseases. Both patients with specific conditions and healthy volunteers can qualify. Most trials offer free study-related medical care alongside compensation.
Recruiting trial data synced daily from ClinicalTrials.gov. Last sync: .
Trials by specialty in Boulder
Trials by drug in Boulder
Filter results
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Newly added in Boulder
Posted to ClinicalTrials.gov within the last 60 days — these studies are just starting to recruit.
A Phase 3 Efficacy and Safety Study of HBS-301 in Participants With Narcolepsy
for EDS
Sites in Boulder +13 more locations
Sponsor: Harmony Biosciences Management, Inc.
Sex: All·Age: 18+
Code: NCT07675135·Phase 3·Recruiting·Listed Jun 30, 2026
Health Ahead Comparative Effectiveness Study
for Health Services Accessibility
1 location in Boulder
Sponsor: William Brandenburg, MD
Sex: All·Age: 18+·Accepts healthy volunteers
Code: NCT07669168·Recruiting·Listed Jun 25, 2026
Human Observatory Study
for Aging
1 location in Boulder
Sponsor: Longevity Metrics, Inc.
Sex: All·Age: 18+·Accepts healthy volunteers
Code: NCT07646782·Recruiting·Listed Jun 15, 2026
58 clinical trials
Symbiotic-GI-16: A Study to Learn About the Study Medicine Called PF-08634404 in Combination With Chemotherapy in Gastroesophageal Cancer
for Untreated Advanced or Metastatic Gastric, Gastroesophageal Junction , or Esophageal Adenocarcinoma
Drug: PF-08634404
Sites in Boulder, Longmont +57 more locations
Sponsor: Pfizer
Sex: All·Age: 18+
Code: NCT07392892·Phase 2, Phase 3·Recruiting·Listed Feb 2026
Symbiotic-GI-03: A Study to Learn About the Study Medicine Called PF-08634404 in Combination With Chemotherapy in Adult Participants With Metastatic Colorectal Cancer
for Intestinal Neoplasms
Drug: PF-08634404
Sites in Boulder, Longmont +179 more locations
Sponsor: Pfizer
Sex: All·Age: 18+
Code: NCT07222800·Phase 3·Recruiting·Listed Oct 2025
Evaluation of Efficacy and Safety of Suzetrigine (SUZ) for Pain Associated With Diabetic Peripheral Neuropathy
for Diabetic Peripheral Neuropathic Pain
Sites in Boulder, Wheat Ridge +68 more locations
Sponsor: Vertex Pharmaceuticals Incorporated
Sex: All·Age: 18 - 80
Code: NCT07231419·Phase 3·Recruiting·Listed Nov 2025
A Study to Learn About the Study Medicine Called PF-08046054/SGN-PDL1V Versus Docetaxel in Adult Participants With Previously-Treated Programmed Cell Death Ligand 1 (PD-L1) Positive Non-Small-Cell Lung Cancer (NSCLC)
for Non-small Cell Carcinoma
Sites in Boulder, Longmont +195 more locations
Sponsor: Pfizer
Sex: All·Age: 18+
Code: NCT07144280·Phase 3·Recruiting·Listed Aug 2025
A Study of Tucatinib With Trastuzumab and mFOLFOX6 Versus Standard of Care Treatment in First-line HER2+ Metastatic Colorectal Cancer
for Colorectal Neoplasms
Sites in Boulder, Longmont +106 more locations
Sponsor: Seagen, a wholly owned subsidiary of Pfizer
Sex: All·Age: 18+
Code: NCT05253651·Phase 3·Recruiting·Listed Feb 2022
Phase 2 Trial of Adagrasib Monotherapy and in Combination With Pembrolizumab and a Phase 3 Trial of Adagrasib in Combination in Patients With a KRAS G12C Mutation KRYSTAL-7
for Advanced Non-Small Cell Lung Cancer
Drug: Adagrasib
Sites in Boulder, Longmont +190 more locations
Sponsor: Mirati Therapeutics Inc.
Sex: All·Age: 18+
Code: NCT04613596·Phase 2, Phase 3·Recruiting·Listed Nov 2020
Efficacy, Safety, and Tolerability Study of Lunsekimig Compared With Placebo in Adult Participants With Inadequately Controlled Chronic Obstructive Pulmonary Disease (COPD), Characterized by an Eosinophilic Phenotype
for Chronic Obstructive Pulmonary Disease
Drug: Lunsekimig
Sites in Boulder, Lakewood +50 more locations
Sponsor: Sanofi
Sex: All·Age: 40 - 80
Code: NCT07190222·Phase 3·Recruiting·Listed Sep 2025
A Study to Learn About the Study Medicine Called PF-07248144 in Combination With Fulvestrant in People With HR-positive, HER2-negative Advanced or Metastatic Breast Cancer Who Progressed After a Prior Line of Treatment.
for Breast Cancer
Sites in Boulder, Longmont +100 more locations
Sponsor: Pfizer
Sex: All·Age: 18+
Code: NCT07062965·Phase 3·Recruiting·Listed Jul 2025
A Study of Disitamab Vedotin in Adults With HER2 Expressing Advanced Breast Cancer
for Breast Cancer
Sites in Boulder, Longmont +132 more locations
Sponsor: Pfizer
Sex: All·Age: 18+
Code: NCT06966453·Phase 1, Phase 2·Recruiting·Listed May 2025
A Long-Term Study of ALKS 2680 in Subjects With Narcolepsy and Idiopathic Hypersomnia
for Narcolepsy Type 1
Drug: ALKS 2680
Sites in Boulder, Colorado Springs +31 more locations
Sponsor: Alkermes, Inc.
Sex: All·Age: 18 - 70
Code: NCT06767683·Phase 2, Phase 3·Recruiting·Listed Jan 2025
A Study to Evaluate the Safety and Effectiveness of ALKS 2680 in Subjects With Idiopathic Hypersomnia
for Idiopathic Hypersomnia
Drug: ALKS 2680
Sites in Boulder, Colorado Springs +32 more locations
Sponsor: Alkermes, Inc.
Sex: All·Age: 18 - 70
Code: NCT06843590·Phase 2·Recruiting·Listed Feb 2025
US National OCS Heart Perfusion (OHP) Registry
for Heart Transplant
Sites in Boulder +36 more locations
Sponsor: TransMedics
Sex: All·Age: All ages
Code: NCT05915299·Recruiting·Listed Jun 2023
A Study to Assess the Safety and Effects of ABBV-1758 Following Subcutaneous or Intravenous Injections in Participants With Alzheimer's Disease
for Alzheimer's Disease
Sites in Boulder +10 more locations
Sponsor: AbbVie
Sex: All·Age: 50 - 90
Code: NCT07599670·Phase 1, Phase 2·Recruiting·Listed May 2026
A Phase 3 Efficacy and Safety Study of HBS-301 in Participants With Idiopathic Hypersomnia (IH)
for Idiopathic Hypersomnia
Sites in Boulder +21 more locations
Sponsor: Harmony Biosciences Management, Inc.
Sex: All·Age: 18+
Code: NCT07500090·Phase 3·Recruiting·Listed Mar 2026
Neladalkib (NVL-655) for TKI-naive Patients With Advanced ALK-Positive NSCLC
for Non-small Cell Lung Cancer
Sites in Boulder +21 more locations
Sponsor: Nuvalent Inc.
Sex: All·Age: 18+
Code: NCT06765109·Phase 3·Recruiting·Listed Jan 2025
100-Year Human Aging Study
for Aging
1 location in Boulder
Sponsor: Longevity Metrics, Inc.
Sex: All·Age: 18+·Accepts healthy volunteers
Code: NCT07563777·Recruiting·Listed May 2026
Observational Study of Patients Undergoing Diagnostic Right Heart Catheterization
for Pulmonary Hypertension
1 location in Boulder
Sponsor: HemoCept Inc.
Sex: All·Age: 18+
Code: NCT07224906·Recruiting·Listed Nov 2025
Detecting Changes in Arterial Blood Volume and Cardiac Efficiency
for Aortic Valve Stenosis
1 location in Boulder
Sponsor: HemoCept Inc.
Sex: All·Age: 18 - 80
Code: NCT07205341·Recruiting·Listed Oct 2025
Virtual Reality Treatment for Adults With Chronic Back Pain (VRNT)
for Chronic Pain
1 location in Boulder
Sponsor: CognifiSense Inc.
Sex: All·Age: 18 - 85
Code: NCT07033195·Recruiting·Listed Jun 2025
5-Years PMCF Study of Ceramic Dental Implants One-piece Versus Two-piece.
for Edentulism
1 location in Boulder
Sponsor: CeraRoot SL
Sex: All·Age: 18+
Code: NCT06287346·Recruiting·Listed Mar 2024
The EASE Study: Randomized Trial of a Novel Approach to Addressing Fear of Progression in Advanced Cancer
for Advanced Solid Tumor Cancer
Sites in Boulder & Aurora
Sponsor: University of Colorado, Boulder
Sex: All·Age: 18+
Code: NCT07636200·Recruiting·Listed Jun 2026
Testing the Addition of a Type of Drug Called Immunotherapy to the Usual Chemotherapy Treatment for Non-small Cell Lung Cancer, an ALCHEMIST Treatment Trial (Chemo-IO [ACCIO])
for Lung Non-Small Cell Carcinoma
Sites in Boulder, Lafayette +633 more locations
Sponsor: National Cancer Institute (NCI)
Sex: All·Age: 18+
Code: NCT04267848·Phase 3·Recruiting·Listed Feb 2020
Osimertinib With or Without Bevacizumab as Initial Treatment for Patients With EGFR-Mutant Lung Cancer
for Advanced Lung Non-Squamous Non-Small Cell Carcinoma
Drug: Bevacizumab
Sites in Boulder, Lafayette +326 more locations
Sponsor: National Cancer Institute (NCI)
Sex: All·Age: 18+
Code: NCT04181060·Phase 3·Recruiting·Listed Nov 2019
Lenalidomide, and Dexamethasone With or Without Daratumumab in Treating Patients With High-Risk Smoldering Myeloma
for Smoldering Plasma Cell Myeloma
Drug: Daratumumab
Sites in Boulder, Longmont +486 more locations
Sponsor: ECOG-ACRIN Cancer Research Group
Sex: All·Age: 18+
Code: NCT03937635·Phase 3·Recruiting·Listed May 2019
Mobile Health for Adherence in Breast Cancer Patients
for Anatomic Stage IV Breast Cancer AJCC v8
Sites in Boulder, Lafayette +457 more locations
Sponsor: ECOG-ACRIN Cancer Research Group
Sex: All·Age: 18+·Accepts healthy volunteers
Code: NCT06112613·Recruiting·Listed Nov 2023
Evaluating the Impact of Social and Genetic Factors on Outcomes in Adolescent and Young Adult Cancer Survivors
for Hodgkin Lymphoma
Sites in Boulder, Longmont +403 more locations
Sponsor: ECOG-ACRIN Cancer Research Group
Sex: All·Age: 18+
Code: NCT06002828·Recruiting·Listed Aug 2023
Cost Communication and Financial Navigation in Cancer Patients (COSTCOM)
for Malignant Solid Neoplasm
Sites in Boulder, Longmont +363 more locations
Sponsor: ECOG-ACRIN Cancer Research Group
Sex: All·Age: All ages·Accepts healthy volunteers
Code: NCT06295367·Recruiting·Listed Mar 2024
Immune Checkpoint Inhibitor Toxicity Risk Prediction in Solid Tumors
for Malignant Solid Neoplasm
Sites in Boulder, Lafayette +586 more locations
Sponsor: SWOG Cancer Research Network
Sex: All·Age: 18+
Code: NCT04871542·Recruiting·Listed May 2021
S1703 Serum Tumor Marker Directed Disease Monitoring in Patients With Hormone Receptor Positive Her2 Negative Metastatic Breast Cancer
for Anatomic Stage IV Breast Cancer AJCC v8
Sites in Boulder, Longmont +584 more locations
Sponsor: SWOG Cancer Research Network
Sex: All·Age: 18+
Code: NCT03723928·Recruiting·Listed Oct 2018
Exercise Adherence and Cognitive Decline: Phase 2
for Cognitive Decline
Sites in Boulder & Aurora
Sponsor: University of Colorado, Boulder
Sex: All·Age: 45 - 65·Accepts healthy volunteers
Code: NCT07127965·Recruiting·Listed Aug 2025
Assessing Benefits and Harms of Cannabis/Cannabinoid Use Among Cancer Patients Treated in Community Oncology Clinics
for Breast Carcinoma
Sites in Boulder, Lafayette +462 more locations
Sponsor: Wake Forest University Health Sciences
Sex: All·Age: 18+
Code: NCT06418204·Recruiting·Listed May 2024
Pathophysiology of Circadian Rhythm Delayed Sleep Wake Phase Disorder
for Delayed Sleep Phase Syndrome
Sites in Boulder +1 more location
Sponsor: University of Colorado, Boulder
Sex: All·Age: 16 - 40·Accepts healthy volunteers
Code: NCT06471374·Recruiting·Listed Jun 2024
Biomarkers for Peripheral Circadian Clocks in Humans
for Circadian Rhythms
1 location in Boulder
Sponsor: University of Colorado, Boulder
Sex: All·Age: 17 - 35·Accepts healthy volunteers
Code: NCT06296823·Recruiting·Listed Mar 2024
Cannabidiol and Older Adult Cannabis Users
for Sleep
1 location in Boulder
Sponsor: University of Colorado, Boulder
Sex: All·Age: 60+
Code: NCT06290063·Phase 2·Recruiting·Listed Mar 2024
Shorter Chemo-Immunotherapy Without Anthracycline Drugs for Early-Stage Triple Negative Breast Cancer
for Anatomic Stage I Breast Cancer AJCC v8
Sites in Boulder, Lafayette +913 more locations
Sponsor: SWOG Cancer Research Network
Sex: All·Age: 18+
Code: NCT05929768·Phase 3·Recruiting·Listed Jul 2023
REVITALIZE: RCT to Reduce Fatigue in Adults With Ovarian Cancer on PARP Inhibitors
for Ovarian Cancer
Sites in Boulder, Aurora +4 more locations
Sponsor: Dana-Farber Cancer Institute
Sex: Female·Age: 18+
Code: NCT06710548·Recruiting·Listed Nov 2024
Adipocyte-Derived Extracellular Vesicles, Weight Loss, and Endothelial Function
for Obesity
1 location in Boulder
Sponsor: University of Colorado, Boulder
Sex: All·Age: 40+·Accepts healthy volunteers
Code: NCT06776081·Recruiting·Listed Jan 2025
Randomization of Single vs Multiple Arterial Grafts
for Coronary Artery Disease
Sites in Boulder +10 more locations
Sponsor: Weill Medical College of Cornell University
Sex: All·Age: 18 - 70
Code: NCT03217006·Recruiting·Listed Jul 2017
Longitudinal Outpatient Treatment for Cannabis Use Disorder
for Cannabis Use Disorder
1 location in Boulder
Sponsor: University of Colorado, Boulder
Sex: All·Age: 21+
Code: NCT06107062·Phase 2·Recruiting·Listed Oct 2023
A Study to Compare the Administration of Encorafenib + Binimetinib + Nivolumab Versus Ipilimumab + Nivolumab in BRAF-V600 Mutant Melanoma With Brain Metastases
for Acral Lentiginous Melanoma
Drug: Ipilimumab
Sites in Boulder, Thornton +301 more locations
Sponsor: SWOG Cancer Research Network
Sex: All·Age: 18+
Code: NCT04511013·Phase 2·Recruiting·Listed Aug 2020
Top Research Study Locations in Boulder
Researchers run research studies in Boulder, CO at 25 active sites. The clinics below currently host the largest number of recruiting studies — each name is followed by the conditions they focus on most.
| Site | Specializes in | Active trials |
|---|---|---|
| Rocky Mountain Cancer Centers-Boulder | Anatomic Stage IV Breast Cancer AJCC v8, Breast Carcinoma, Lung Non-Small Cell Carcinoma | 12 |
| Boulder Community Foothills Hospital | Anatomic Stage IV Breast Cancer AJCC v8, Malignant Solid Neoplasm, Acral Lentiginous Melanoma | 8 |
| University of Colorado Boulder | Advanced Ovarian Carcinoma, Advanced Solid Tumor Cancer, Aging | 8 |
| Alkermes Investigational Site | Idiopathic Hypersomnia, Narcolepsy Type 1, Narcolepsy Type 2 | 4 |
| University of Colorado | Blepharitis, Coronary Artery Disease, Delayed Sleep Phase | 4 |
| Longevity Metrics | Activities of Daily Living, Aging, Cardiovascular Diseases | 3 |
| Rocky Mountain Cancer Centers, LLP | Breast Cancer, Breast Neoplasms, Colorectal Neoplasms | 3 |
| Boulder Heart | Aortic Valve Stenosis, Congestive Heart Failure(CHF), Pulmonary Hypertension | 2 |
| Integrative Physiology of Aging Laboratory | Aging, Hypertension, Blood Pressure | 2 |
| Rocky Mountain Cancer Centers - Boulder | Breast Cancer, Colonic Diseases, Colorectal Neoplasms | 2 |
| Rocky Mountain Cancer Centers LLP | Breast Cancer, Non-Small Cell Lung Cancer Metastatic, Non-Small Cell Lung Carcinoma | 2 |
| University of Colorado at Boulder | Anxiety, Cannabis Use, Depression | 2 |
| Alpine Clinical Research Center - Boulder - 47th Street | Alzheimer's Disease, Chronic Obstructive Pulmonary Disease | 2 |
| Alpine Clinical Research Center | Diabetic Peripheral Neuropathic Pain | 1 |
| Alpine Clinical Research Center, Inc | Cataplexy, EDS, Fatigue | 1 |
| Alpine Clinical Research Center, Inc. | Idiopathic Hypersomnia | 1 |
| Andrew Tan | Able Bodied, INCOMPLETE SPINAL CORD INJURY (ASIA D) | 1 |
| Boulder | Heart Transplant | 1 |
| Boulder Community Hospital | Anatomic Stage IV Breast Cancer AJCC v8, Elevated CA15-3 or CEA or CA27-29, Estrogen Receptor Positive | 1 |
| Boulder Medical Center | Localized Prostate Cancer | 1 |
| Center for Innovation and Creativity (CINC) | Cannabis, Electroencephalography, Memory | 1 |
| Family Holistic Dentistry | Edentulism, Tooth Loss | 1 |
| Local Institution - 007-872-D | Advanced Non-Small Cell Lung Cancer, Metastatic Non-Small Cell Lung Cancer | 1 |
| Memoru | Adjustment Disorders, Post-Traumatic Stress Disorder | 1 |
| Recreation Centers in the Boulder Area | Cognitive Decline | 1 |
Active & Upcoming Studies in Boulder (2026)
Recruiting trials in Boulder grouped by therapeutic area, drawn from ClinicalTrials.gov. Each bucket shows the most recent example studies.
Cancer & tumors (21 active studies)
- WATER IV PCa (AS Sub-study) · PROCEPT BioRobotics
- Symbiotic-GI-16: A Study to Learn About the Study Medicine Called PF-08634404 in Combination With Chemotherapy in Gastroesophageal Cancer · Phase 2, Phase 3 · Pfizer
Diabetes & metabolic (5 active studies)
- Health Ahead Comparative Effectiveness Study · William Brandenburg, MD
- Human Observatory Study · Longevity Metrics, Inc.
Neurology & pain (5 active studies)
- Evaluation of Efficacy and Safety of Suzetrigine (SUZ) for Pain Associated With Diabetic Peripheral Neuropathy · Phase 3 · Vertex Pharmaceuticals Incorporated
- Virtual Reality Treatment for Adults With Chronic Back Pain (VRNT) · CognifiSense Inc.
Cardiovascular (5 active studies)
Mental health & behavior (2 active studies)
- Group Exposure Workshops for Socially Anxious Undergraduates · University of Colorado, Boulder
- Cannabidiol and Older Adult Cannabis Users · Phase 2 · University of Colorado, Boulder
Common conditions studied in Boulder
- Aging (6 active studies)
- Activities of Daily Living (3 active studies)
- Breast Cancer (3 active studies)
- Cardiovascular Diseases (3 active studies)
- Cognitive Dysfunction (3 active studies)
- Frailty (3 active studies)
Leading research sponsors in Boulder
- University of Colorado, Boulder
- Pfizer
- SWOG Cancer Research Network
- Alkermes, Inc.
- ECOG-ACRIN Cancer Research Group
Frequently asked questions
How many paid clinical trials are currently recruiting in Boulder?
There are approximately 64 recruiting clinical trials in Boulder, Colorado listed on ClinicalTrials.gov. The number changes weekly as new studies open and others close enrollment.
Do clinical trials in Boulder pay participants?
Most recruiting trials in Boulder compensate participants for their time, travel, and study visits. Compensation varies by sponsor, study phase, and visit requirements — the exact amount is disclosed by the study team during the informed consent process.
Who can participate in a clinical trial in Boulder?
Eligibility depends on the specific study. Each trial defines its own inclusion criteria (age, diagnosis, medical history, prior treatments) and exclusion criteria. Both patients with specific conditions and healthy volunteers can qualify, depending on the study design.
What conditions are most commonly studied in Boulder?
The most common conditions under active study in Boulder include Aging (6), Activities of Daily Living (3), Breast Cancer (3), Cardiovascular Diseases (3), among many others. Browse the list above to explore every recruiting trial.
Are there clinical trials for healthy volunteers in Boulder?
Yes. Healthy-volunteer studies — often early-phase pharmacology or vaccine trials — recruit in Boulder on an ongoing basis. Use the "Healthy volunteers only" filter above to view trials that accept participants without the study's target condition.
How do I enroll in a clinical trial in Boulder?
Click any study title above to see the full study record, including eligibility criteria, visit schedule, and the study team's contact information. Reach out to the central contact or recruiting site directly — they will guide you through screening and informed consent.
Where can I take part in paid clinical trials in Boulder?
Recruiting research sites in Boulder include Rocky Mountain Cancer Centers-Boulder, Boulder Community Foothills Hospital, University of Colorado Boulder, among others. Each site lists its open studies and contact information on the study record above — call or email the site coordinator to ask about screening for a specific protocol.
What kinds of studies are recruiting in Boulder right now?
The largest active categories in Boulder are Cancer & tumors (21), Diabetes & metabolic (5), Neurology & pain (5). Use the filters above to narrow by therapeutic area, phase, age, or healthy-volunteer eligibility.
Browse more clinical trials
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