Clinical Trials in Arizona
Arizona ranks #11 nationally by clinical-trial count, with 445 trials listed, all currently recruiting.
Among trials with a recorded phase, Phase 3 is the largest group at 147 trials.
The top conditions by trial volume are Alzheimer Disease (10), Non Small Cell Lung Cancer (8), Obesity (7).
445
Total Trials
445
Recruiting
#11
National Rank
20
Conditions
Trials by Phase
111
Not Applicable
19
Phase 2 / Phase 3
30
Phase 1 / Phase 2
2
Early Phase 1
34
Phase 1
84
Phase 2
147
Phase 3
18
Phase 4
Top Conditions in Arizona
Top Sponsors in Arizona
Cities With Most Trials in Arizona
| # | City | Trials |
|---|---|---|
| 1 | Phoenix | 270 |
| 2 | Tucson | 158 |
| 3 | Scottsdale | 113 |
| 4 | Gilbert | 46 |
| 5 | Chandler | 44 |
| 6 | Mesa | 27 |
| 7 | Glendale | 25 |
| 8 | Sun City | 19 |
| 9 | Peoria | 18 |
| 10 | Kingman | 10 |
| 11 | Flagstaff | 10 |
| 12 | Tempe | 8 |
| 13 | Goodyear | 4 |
| 14 | Yuma | 4 |
| 15 | Avondale | 4 |
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
Arizona currently has 445 clinical trials actively recruiting participants, making it #11 nationally by total trial count.
The most-studied conditions in Arizona are Alzheimer Disease (10 trials), Non Small Cell Lung Cancer (8 trials), Obesity (7 trials).
Browse the conditions listed on this page to find trials recruiting in Arizona. 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.