Phase 1 · Arizona
Phase 1 clinical trials in Arizona
53 studies have at least one recruiting site in Arizona. Phase 1 (and early Phase 1) trials are usually the first time a medicine is studied in people. They are typically small, closely monitored, and many are run in dedicated research units, sometimes with overnight stays.
53 recruiting studiesSource: ClinicalTrials.gov, refreshed October 26, 2026How we list studies
Studies
- RecruitingPhase 1/Phase 2
DFT383 in Pediatric Participants With Nephropathic Cystinosis
Novartis Pharmaceuticals
- Location
- Phoenix, AZ + 5 other US sites
- Eligibility basics
- Ages 2–5
- RecruitingPhase 1
Resmetirom in Patients With MASH and HFpEF
Madrigal Pharmaceuticals, Inc.
- Location
- Peoria, AZ + 4 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 1/Phase 2
A Study in People With Diabetic Macular Edema to Test How Well Different Doses of BI 3812465 Are Tolerated
Boehringer Ingelheim
- Location
- Phoenix, AZ + 24 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 1
Study to Evaluate the Maximal Use of Ruxolitinib Cream in Adult and Adolescent Participants With Hidradenitis Suppurativa
Incyte Corporation
- Location
- Phoenix, AZ + 15 other US sites
- Eligibility basics
- Ages 12–75
- RecruitingPhase 1
A Study to Evaluate the Safety, Tolerability, Pharmacodynamics, and Pharmacokinetics of RO7823653 in Participants With Diabetic Macular Edema (DME)
Genentech, Inc.
- Location
- Peoria, AZ + 11 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 1/Phase 2
A Study of Oral Nuvisertib (TP-3654) in Patients With Myelofibrosis
Sumitomo Pharma America, Inc.
- Location
- Tucson, AZ + 29 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 1/Phase 2
A Study of AAVB-039 in Participants With Stargardt Disease (STGD1)
AAVantgarde Bio Srl
- Location
- Phoenix, AZ + 7 other US sites
- Eligibility basics
- Ages 8–55
- RecruitingPhase 1
A Study of PATAS Using Single Ascending Doses in Healthy Volunteers and Multiple Ascending Doses in Diabetic Subjects
AdipoPharma LLC
- Location
- Chandler, AZ + 2 other US sites
- Eligibility basics
- Ages 18–65
- RecruitingPhase 1
A Study to Assess the Safety, Tolerability, and Pharmacokinetics of GIGA-2339 in Participants With Chronic Hepatitis B Virus Infection
GigaGen, Inc.
- Location
- Chandler, AZ + 10 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 1/Phase 2
A Phase 1/2 Study of the Safety and Efficacy of BRX011 Oral Administration Once Daily in Subjects With Geographic Atrophy Secondary to Age-Related Macular Degeneration
Biojiva LLC
- Location
- Gilbert, AZ + 4 other US sites
- Eligibility basics
- Ages 55+
- RecruitingPhase 1/Phase 2
CNP-103 in Adolescent and Adult Subjects Ages 12-35 With Recently Diagnosed (Within 6 Months) Stage 3 Type 1 Diabetes (T1D)
COUR Pharmaceutical Development Company, Inc.
- Location
- Tucson, AZ + 44 other US sites
- Eligibility basics
- Ages 12–35
- RecruitingPhase 1
A Study to Investigate the Safety and Preliminary Efficacy of ALLO-329, an Allogeneic CAR T-cell Therapy, in Adults With Autoimmune Disease
Allogene Therapeutics
- Location
- Phoenix, AZ + 15 other US sites
- Eligibility basics
- Ages 18–74
- RecruitingPhase 1
A Study to Evaluate Sequential Administration of Injections of AGN-151586 Followed by BOTOX in Adult Participants for Treatment of Glabellar Lines
AbbVie
- Location
- Glendale, AZ + 7 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 1
A Study to Find Out How Nusinersen is Processed in the Body When Given Through the ThecaFlex DRx™ System in Adult and Pediatric Participants With Spinal Muscular Atrophy (PIERRE-PK)
Biogen
- Location
- Phoenix, AZ + 11 other US sites
- Eligibility basics
- Ages 3+
- RecruitingPhase 1
Phase 1 Study of VELGRAFT, a Living Cellular Construct, in the Management of Chronic Diabetic Foot Ulcers Which Have Attained Granulation Tissue
Ayu, Inc.
- Location
- Phoenix, AZ
- Eligibility basics
- Ages 18+
- RecruitingPhase 1/Phase 2
AMT-260 Gene Therapy Study in Adults With Unilateral Refractory Mesial Temporal Lobe Epilepsy
UniQure Biopharma B.V.
- Location
- Phoenix, AZ + 15 other US sites
- Eligibility basics
- Ages 18–75
- RecruitingPhase 1/Phase 2
4D-150 in Patients With Neovascular (Wet) Age-Related Macular Degeneration
4D Molecular Therapeutics
- Location
- Phoenix, AZ + 19 other US sites
- Eligibility basics
- Ages 50+
- RecruitingPhase 1/Phase 2
Study to Evaluate Safety, Efficacy and Immunogenicity of Acne mRNA Vaccine in Adults With Moderate to Severe Acne
Sanofi Pasteur, a Sanofi Company
- Location
- Scottsdale, AZ + 78 other US sites
- Eligibility basics
- Ages 18–45
- RecruitingPhase 1
Semaglutide Delivered Epi-Intradermally by Microarray Patch (VX-201) Versus Subcutaneous Administration in Healthy Overweight and Obese Participants
Terrestrial Bio, Inc.
- Location
- Tempe, AZ
- Eligibility basics
- Ages 18–60
- RecruitingPhase 1/Phase 2
A Study to Evaluate ALN-CIDEB in Adult Participants With Metabolic Dysfunction-Associated Steatotic Liver Disease or With Metabolic Dysfunction-Associated Steatohepatitis (MASLD/MASH)
Regeneron Pharmaceuticals
- Location
- Chandler, AZ + 1 other US site
- Eligibility basics
- Ages 18–65
- RecruitingPhase 1
A Study to Learn if Bimekizumab Given in Different Ways is Safe and Moves Similarly Throughout the Body Over Time in Adults
UCB Biopharma SRL
- Location
- Peoria, AZ + 29 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 1/Phase 2
A Phase 1b/2 Study of CAR T Cell Therapy Targeting CD19 and BCMA in Participants With Relapsed or Refractory AL Amyloidosis.
Alexion Pharmaceuticals, Inc.
- Location
- Phoenix, AZ + 9 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 1
Study of Single Doses of SBT777101 in Subjects With Rheumatoid Arthritis
Sonoma Biotherapeutics, Inc.
- Location
- Scottsdale, AZ + 8 other US sites
- Eligibility basics
- Ages 18–70
- RecruitingPhase 1/Phase 2
Safety and Tolerability Study of ST-503 for Refractory Pain Due to Peripheral Neuropathy (Small Fiber Predominant, SFN)
Sangamo Therapeutics
- Location
- Scottsdale, AZ + 5 other US sites
- Eligibility basics
- Ages 18+
Who these studies look for
Phase 1 studies often have narrow eligibility: specific age and weight ranges, no recent participation in another study, no nicotine, and limits on medications. Some Phase 1 studies recruit patients rather than healthy volunteers, so check each listing.
Matching a page like this one never means you qualify. Each research team decides eligibility at screening.
Questions
Are Phase 1 trials riskier?
Every study carries risk. Phase 1 studies involve less human data about the product, which is why they are closely monitored. The informed consent document explains the known risks; read it carefully and ask questions before signing.
Why do some Phase 1 studies include overnight stays?
Staying in the unit lets staff dose on a precise schedule and collect samples around the clock. Where a record mentions an inpatient stay we flag it on the listing.