Phase 1 · Orange, CA
Phase 1 clinical trials in Orange, CA
13 recruiting studies have a site in Orange.
13 recruiting studiesSource: ClinicalTrials.gov, refreshed October 26, 2026How we list studies
Studies
- RecruitingHealthy volunteersPhase 1/Phase 2
A Study to Learn About the Treatment LTP001 in Healthy Participants (Part A) and in Participants With PAH (Part B)
Novartis Pharmaceuticals
- Location
- Orange, CA + 18 other US sites
- Eligibility basics
- Ages 18–100
- RecruitingPhase 1/Phase 2
RESET-MG: A Study to Evaluate the Safety and Efficacy of CABA-201 in Participants With Generalized Myasthenia Gravis
Cabaletta Bio
- Location
- Orange, CA + 16 other US sites
- Eligibility basics
- Ages 18–70
- RecruitingPhase 1/Phase 2
A Gene Therapy Study of SPK-8011QQ in Adults With Severe or Moderately Severe Hemophilia A
Hoffmann-La Roche
- Location
- Orange, CA + 5 other US sites
- Eligibility basics
- Ages 18+ · Men only
- RecruitingPhase 1/Phase 2
First-in-human Study of UX016 in GNEM
Ultragenyx Pharmaceutical Inc
- Location
- Orange, CA + 1 other US site
- Eligibility basics
- Ages 18–55
- RecruitingPhase 1
Study to Evaluate the Maximal Use of Ruxolitinib Cream in Adult and Adolescent Participants With Hidradenitis Suppurativa
Incyte Corporation
- Location
- Orange, CA + 15 other US sites
- Eligibility basics
- Ages 12–75
- RecruitingPhase 1/Phase 2
RESET-SLE: A Phase 1/2 Open-Label Study to Evaluate the Safety and Efficacy of CABA-201 in Subjects With Active Systemic Lupus Erythematosus
Cabaletta Bio
- Location
- Orange, CA + 17 other US sites
- Eligibility basics
- Ages 12–65
- 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
- Orange, CA + 11 other US sites
- Eligibility basics
- Ages 3+
- RecruitingPhase 1/Phase 2
Study of CTO1681 for the Prevention and Treatment of CRS in Patients Receiving CAR T-Cell Therapy
CytoAgents, Inc.
- Location
- Orange, CA + 5 other US sites
- Eligibility basics
- Ages 18+
- RecruitingPhase 1/Phase 2
AAV Gene Therapy Clinical Study in Adult Classic PKU (PHEdom)
NGGT INC.
- Location
- Orange, CA + 4 other US sites
- Eligibility basics
- Ages 18–55
- RecruitingPhase 1/Phase 2
A Phase 1/2 Study of NKX019 in Subjects With Immune-Mediated Diseases (Ntrust-2)
Nkarta, Inc.
- Location
- Orange, CA + 14 other US sites
- Eligibility basics
- Ages 18–75
- RecruitingPhase 1
Phase 1b Trial of RAY121 in Immunological Diseases (RAINBOW Trial)
Chugai Pharmaceutical
- Location
- Orange, CA + 6 other US sites
- Eligibility basics
- Ages 18–85
- RecruitingPhase 1/Phase 2
A Phase 1/2 Study of NRTX-1001 Neuronal Cell Therapy in Drug-Resistant Bilateral Mesial Temporal Lobe Epilepsy (MTLE)
Neurona Therapeutics
- Location
- Orange, CA + 15 other US sites
- Eligibility basics
- Ages 18–75
- RecruitingPhase 1/Phase 2
A Phase 1/2, Dose-Exploration Study to Evaluate the Safety and Efficacy of BEAM-301 in Patients With Glycogen Storage Disease Type Ia (GSDIa)
Beam Therapeutics Inc.
- Location
- Orange, CA + 2 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.