Location · California
Clinical trials recruiting in California
1900 recruiting studies have at least one site in California; 700 accept healthy volunteers. Studies that need a specific condition are included too, so check each listing.
Want the research companies that run paid Phase 1 studies for healthy volunteers? Paid clinical trial companies in California.
1,900 recruiting studiesSource: ClinicalTrials.gov, refreshed October 27, 2026How we list studies
More recruiting studies (pay not posted)
- RecruitingPhase 3
Phase 3 Trial of eRapa in Patients With Familial Adenomatous Polyposis
Rapamycin Holdings Inc.
- Location
- Arcadia, CA + 17 other US sites
- Eligibility basics
- Ages 18+
- Recruiting
Agilis RF TSP Early Feasibility Study
Abbott Medical Devices
- Location
- San Francisco, CA + 2 other US sites
- Eligibility basics
- Ages 18+
- Recruiting
Regulatory Clearance of the Glide Control Strategy for Upper Limb Prostheses
Infinite Biomedical Technologies
- Location
- Redondo Beach, CA
- Eligibility basics
- Ages 18+
- Recruiting
Use of CereGate Therapy for Freezing of Gait in PD
CereGate Inc.
- Location
- Redwood City, CA + 6 other US sites
- Eligibility basics
- Ages 21–80
- RecruitingPhase 1/Phase 2
Study of EXE-346 Live Biotherapeutic to Reduce High Bowel Movement Frequency in Subjects With an IPAA (PROF)
Exegi Pharma, LLC
- Location
- Los Angeles, CA + 7 other US sites
- Eligibility basics
- Ages 18+
- Recruiting
Applause Study I - Append System Early Feasibility Study
Append Medical Ltd.
- Location
- Los Angeles, CA + 2 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 1
A Phase 1 Study of FT819 in B-cell Mediated Autoimmune Disease
Fate Therapeutics
- Location
- Beverly Hills, CA + 15 other US sites
- Eligibility basics
- Ages 12–70
- RecruitingPhase 2
A Phase 2 Study of Vosoritide in Children With Idiopathic Short Stature
BioMarin Pharmaceutical
- Location
- California City, CA + 30 other US sites
- Eligibility basics
- Ages 3–11
- Recruiting
Preventing Medication Mismanagement in People Living With Dementia
HiDO Technologies
- Location
- Folsom, CA
- Eligibility basics
- Ages 65+
- Recruiting
Transdermal Compress IDE Study
Balmoral Medical company
- Location
- Sacramento, CA + 8 other US sites
- Eligibility basics
- Ages 18–60
- RecruitingPhase 2
A Study to Investigate the Safety and Efficacy of MEDI0618 Compared to Placebo in Adult Participants With Episodic Migraine
AbbVie
- Location
- La Jolla, CA + 7 other US sites
- Eligibility basics
- Ages 18–70
- RecruitingPhase 1
Evaluating ER-100 for Safety in People With Glaucoma or Non-Arteritic Anterior Ischemic Optic Neuropathy (Optic Nerve Conditions)
Life Biosciences Inc.
- Location
- Glendale, CA + 3 other US sites
- Eligibility basics
- Ages 40–85
- Recruiting
Clinical Study of the inQB8 TTVR System (The MonarQ Study)
inQB8 Medical Technologies, LLC
- Location
- Los Angeles, CA + 5 other US sites
- Eligibility basics
- Ages 18+
- Recruiting
An Evaluation of the Effect of the Erchonia FX-405 Laser as an Adjunctive Treatment of Periodontitis
Erchonia Corporation
- Location
- Thousand Oaks, CA + 1 other US site
- Eligibility basics
- Ages 22–75
- RecruitingPhase 3
A Phase 3 Study to Evaluate the Efficacy and Safety of Intravitreal KSI-101 in Participants With Macular Edema Secondary to Inflammation (MESI) - PEAK
Kodiak Sciences Inc
- Location
- Bakersfield, CA + 47 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 3
A Phase 3 Study to Evaluate the Efficacy and Safety of Intravitreal KSI-101 in Participants With Macular Edema Secondary to Inflammation (MESI) - PINNACLE
Kodiak Sciences Inc
- Location
- Bakersfield, CA + 47 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 2
A Trial to Investigate Safety, Exposure, and Efficacy of HU6 Compared With Placebo in Adult Participants With Metabolic Dysfunction-associated Steatohepatitis (MASH)
Rivus Pharmaceuticals, Inc.
- Location
- Garden Grove, CA + 30 other US sites
- Eligibility basics
- Ages 30+
- RecruitingPhase 3
Study to Evaluate Efficacy and Safety of Inclisiran in Children With Heterozygous Familial Hypercholesterolemia
Novartis Pharmaceuticals
- Location
- San Francisco, CA + 6 other US sites
- Eligibility basics
- Ages 6–11
- RecruitingPhase 2
Safety, Tolerability, Pharmacokinetics, and Preliminary Efficacy of SPL84 in Patients With Cystic Fibrosis
SpliSense Ltd.
- Location
- Los Angeles, CA + 1 other US site
- Eligibility basics
- Ages 18+
- Recruiting
Chronic Nausea and Vomiting in Patients With Normal Gastric Emptying Using the Enterra® Therapy System (NAVIGATE)
Enterra Medical, Inc.
- Location
- Los Angeles, CA + 11 other US sites
- Eligibility basics
- Ages 18+
- Recruiting
NT-II™ Collagen for Joint Discomfort and Function
Hofseth Biocare ASA
- Location
- San Francisco, CA
- Eligibility basics
- Ages 20–65
- RecruitingPhase 3
Study to Check the Safety of Fazirsiran and Learn if Fazirsiran Can Help People With Liver Disease and Scarring (Fibrosis) Due to an Abnormal Version of Alpha-1 Antitrypsin Protein
Takeda
- Location
- La Jolla, CA + 32 other US sites
- Eligibility basics
- Ages 18–75
- Recruiting
The GORE VBX FORWARD Clinical Study: A Comparison of the GORE® VIABAHN® VBX Balloon Expandable Endoprosthesis to Bare Metal Stenting for Patients With Complex Iliac Occlusive Disease
W.L.Gore & Associates
- Location
- Long Beach, CA + 22 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 2
Study of Sparsentan Treatment in Pediatrics With Proteinuric Glomerular Diseases
Travere Therapeutics, Inc.
- Location
- Los Angeles, CA + 16 other US sites
- Eligibility basics
- Ages 1–17