Clinical Trials in Colorado
Colorado ranks #12 nationally by clinical-trial count, with 422 trials listed, all currently recruiting.
Among trials with a recorded phase, Phase 3 is the largest group at 104 trials.
The top conditions by trial volume are Cystic Fibrosis (11), Multiple Myeloma (10), Multiple Sclerosis (9).
422
Total Trials
422
Recruiting
#12
National Rank
20
Conditions
Trials by Phase
139
Not Applicable
37
Phase 1 / Phase 2
16
Phase 2 / Phase 3
1
Early Phase 1
28
Phase 1
83
Phase 2
104
Phase 3
14
Phase 4
Top Conditions in Colorado
Top Sponsors in Colorado
Cities With Most Trials in Colorado
| # | City | Trials |
|---|---|---|
| 1 | Aurora | 252 |
| 2 | Denver | 106 |
| 3 | Colorado Springs | 49 |
| 4 | Lakewood | 16 |
| 5 | Fort Collins | 16 |
| 6 | Grand Junction | 13 |
| 7 | Littleton | 11 |
| 8 | Englewood | 9 |
| 9 | Lone Tree | 9 |
| 10 | Golden | 7 |
| 11 | Loveland | 5 |
| 12 | Highlands Ranch | 5 |
| 13 | Durango | 4 |
| 14 | Sheridan | 3 |
| 15 | Boulder | 3 |
Important: This information is for research purposes only. Always talk to your doctor about whether a clinical trial is right for you.
Frequently Asked Questions
Colorado currently has 422 clinical trials actively recruiting participants, making it #12 nationally by total trial count.
The most-studied conditions in Colorado are Cystic Fibrosis (11 trials), Multiple Myeloma (10 trials), Multiple Sclerosis (9 trials).
Browse the conditions listed on this page to find trials recruiting in Colorado. Each condition page shows trial details, eligibility criteria in plain English, and contact information. Always talk to your doctor about whether a trial is right for you.
Trial counts reflect currently recruiting studies listed on ClinicalTrials.gov with locations in this state.
Source: ClinicalTrials.gov, 2026.