Paid Clinical Trials in Los Angeles, CA

As of June 2026, 2,051 paid clinical trials are recruiting in Los Angeles, California. Compensation typically covers time, travel, and study visits, with stipends ranging from modest amounts for short outpatient studies to several thousand dollars for long or inpatient protocols.

Both patients with specific conditions and healthy volunteers can qualify. Most trials offer free study-related medical care alongside compensation.

Recruiting trial data synced daily from ClinicalTrials.gov. Last sync: June 4, 2026.

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2,051 clinical trials

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Magnetic Resonance Imaging for Improving Knowledge of Brain Tumor Biology in Patients With Resectable Glioblastoma

for Glioblastoma

1 location in Los Angeles

Sponsor: Jonsson Comprehensive Cancer Center

Sex: All·Age: 18+

Code: NCT06090903·Recruiting

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Study of Erdafitinib Intravesical Delivery System for Localized Bladder Cancer

for Non-Muscle Invasive Bladder Neoplasms

25 locations incl. Birmingham

Sponsor: Janssen Research & Development, LLC

Sex: All·Age: 18+

Code: NCT05316155·Phase 1, Phase 2·Recruiting

Apply to this trial

Breast Cancer Survivorship Biorepository

for Anatomic Stage I Breast Cancer AJCC v8

1 location in Los Angeles

Sponsor: University of Southern California

Sex: Female·Age: 18+

Code: NCT05786664·Recruiting

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Angiotensin 2 for AKI After OLT

for Cirrhosis, Liver

1 location in Los Angeles

Sponsor: University of California, Los Angeles

Sex: All·Age: 18+

Code: NCT04592744·Phase 4·Enrolling By Invitation

Genetic Collection Protocol

for Liver Diseases

12 locations incl. Los Angeles

Sponsor: Arbor Research Collaborative for Health

Sex: All·Age: 24 Hours - 25

Code: NCT05272319·Recruiting

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Trial of Sibeprenlimab in the Treatment of Immunoglobulin A Nephropathy (IgAN)

for Immunoglobulin A Nephropathy

15 locations incl. Birmingham

Sponsor: Otsuka Pharmaceutical Development & Commercialization, Inc.

Sex: All·Age: 18+

Code: NCT05248659·Phase 2, Phase 3·Enrolling By Invitation

Long-Term Follow-Up Study of RGX-314 Administered in the Suprachoroidal Space for Participants With Diabetic Retinopathy

for Diabetic Retinopathy, DR

19 locations incl. Phoenix

Sponsor: AbbVie

Sex: All·Age: All ages

Code: NCT05296447·Enrolling By Invitation

Improving Father-Child and Father-Partner Relationships Among Black and Hispanic Fathers

for Parent-Child Relations

1 location in Los Angeles

Sponsor: University of Southern California

Sex: Male·Age: 18 - 60

Code: NCT05214898·Enrolling By Invitation

Thoracotomy Versus Thoracoscopic Management of Pulmonary Metastases in Patients With Osteosarcoma

for Metastatic Malignant Neoplasm in the Lung

219 locations incl. Birmingham

Sponsor: Children's Oncology Group

Sex: All·Age: Up to 50

Code: NCT05235165·Phase 3·Recruiting

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Phase 2/3 Adaptive Study of VX-147 in Adult and Pediatric Participants With APOL1-Mediated Proteinuric Kidney Disease

for Proteinuric Kidney Disease

227 locations incl. Alabaster

Sponsor: Vertex Pharmaceuticals Incorporated

Sex: All·Age: 10 - 65

Code: NCT05312879·Phase 2, Phase 3·Recruiting

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A Study to Learn More About How Well the Study Treatment Finerenone Works, How Safe it is, How it Moves Into, Through, and Out of the Body, and the Effects it Has on the Body When Taken With an ACE Inhibitor or Angiotensin Receptor Blocker in Children With Chronic Kidney Disease and Proteinuria

for Chronic Kidney Disease

Drug: Finerenone

19 locations incl. Phoenix

Sponsor: Bayer

Sex: All·Age: 6 Months - 17

Code: NCT05196035·Phase 3·Recruiting

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A Study to Assess Disease Activity and Adverse Events of Intravenous (IV) Telisotuzumab Vedotin Compared to IV Docetaxel in Adult Participants With Previously Treated Non-Squamous Non-Small Cell Lung Cancer (NSCLC)

for Non Small Cell Lung Cancer

Drug: Telisotuzumab Vedotin

50 locations incl. Birmingham

Sponsor: AbbVie

Sex: All·Age: 18+

Code: NCT04928846·Phase 3·Recruiting

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Study of RYZ101 Compared With SOC in Pts w Inoperable SSTR+ Well-differentiated GEP-NET That Has Progressed Following 177Lu-SSA Therapy

for GEP-NET

32 locations incl. Phoenix

Sponsor: RayzeBio, Inc.

Sex: All·Age: 18+

Code: NCT05477576·Phase 3·Recruiting

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Clozapine for the Prevention of Violence in Schizophrenia: a Randomized Clinical Trial

for Schizophrenia

7 locations incl. Los Angeles

Sponsor: New York State Psychiatric Institute

Sex: All·Age: 18 - 65

Code: NCT05208190·Phase 4·Recruiting

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Caloric Restriction and Activity to Reduce Chemoresistance in B-ALL

for B-cell Acute Lymphoblastic Leukemia

20 locations incl. Los Angeles

Sponsor: Etan Orgel

Sex: All·Age: 10 - 25

Code: NCT05082519·Phase 2·Recruiting

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A Study of Zanubrutinib Plus Anti-CD20 Versus Lenalidomide Plus Rituximab in Participants With Relapsed/Refractory Follicular or Marginal Zone Lymphoma

for Relapsed/Refractory Follicular Lymphoma

Drug: Rituximab

49 locations incl. Fresno

Sponsor: BeiGene

Sex: All·Age: 18+

Code: NCT05100862·Phase 3·Recruiting

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An Extension Study to Evaluate the Long-Term Safety and Clinical Activity of mRNA-3705 in Participants Previously Enrolled in Other Clinical Studies of mRNA-3705

for Methylmalonic Acidemia

3 locations incl. Los Angeles

Sponsor: ModernaTX, Inc.

Sex: All·Age: 1+

Code: NCT05295433·Phase 1, Phase 2·Recruiting

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EPIC-Peds: A Study to Learn About the Study Medicine Called PF-07321332 (Nirmatrelvir)/Ritonavir in Patients Under 18 Years of Age With COVID-19 That Are Not Hospitalized But Are at Risk for Severe Disease

for COVID-19

50 locations incl. Phoenix

Sponsor: Pfizer

Sex: All·Age: 0 - 17

Code: NCT05261139·Phase 3·Recruiting

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An Extension Study to Assess Long-Term Safety and Tolerability of Adjunctive KarXT in Subjects With Inadequately Controlled Symptoms of Schizophrenia

for Schizophrenia

Drug: KarXT

79 locations incl. Phoenix

Sponsor: Karuna Therapeutics, Inc., a Bristol Myers Squibb company

Sex: All·Age: 18 - 65

Code: NCT05304767·Phase 3·Recruiting

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Study of Dato-DXd Plus Pembrolizumab vs Pembrolizumab Alone in the First-line Treatment of Subjects With Advanced or Metastatic NSCLC Without Actionable Genomic Alterations

for Metastatic Non Small Cell Lung Cancer

36 locations incl. Chandler

Sponsor: Daiichi Sankyo

Sex: All·Age: 18+

Code: NCT05215340·Phase 3·Recruiting

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FIH Study of RGT-419B Alone and With Endocrine Therapy in HR-Positive, HER2-Negative Advanced/Metastatic Breast Cancer

for Breast Cancer

8 locations incl. La Jolla

Sponsor: Regor Pharmaceuticals Inc.

Sex: All·Age: 18+

Code: NCT05304962·Phase 1·Recruiting

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DBS Recordings to Characterize Movement Facilitation in Parkinson's Disease

for Parkinson Disease

1 location in Los Angeles

Sponsor: University of California, Los Angeles

Sex: All·Age: 18+·Accepts healthy volunteers

Code: NCT05166655·Enrolling By Invitation

Trisol System EFS Study

for Tricuspid Regurgitation

7 locations incl. Los Angeles

Sponsor: Trisol Medical

Sex: All·Age: 18+

Code: NCT04905017·Recruiting

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Effects of Multi-day Interruptions in Sitting on Type 2 Diabetes-relevant Outcomes in Children

for Sedentary Behavior

1 location in Los Angeles

Sponsor: University of Southern California

Sex: All·Age: 8 - 11·Accepts healthy volunteers

Code: NCT04469790·Recruiting

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Bright Ideas - CIN Feasibility Study

for Acute Lymphoblastic Leukemia (ALL)

3 locations incl. Los Angeles

Sponsor: The Hospital for Sick Children

Sex: All·Age: 4 - 18

Code: NCT04929899·Recruiting

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Individualized Treatment Plan in Children and Young Adults With Relapsed Medulloblastoma and Ependymoma

for Medulloblastoma

8 locations incl. Los Angeles

Sponsor: University of California, San Francisco

Sex: All·Age: 12 Months - 39

Code: NCT05057702·Recruiting

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Percutaneous or Surgical Repair In Mitral Prolapse And Regurgitation for ≥60 Year-olds (PRIMARY)

for Mitral Valve Regurgitation

24 locations incl. Los Angeles

Sponsor: Annetine Gelijns

Sex: All·Age: 60+

Code: NCT05051033·Recruiting

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A Study of Vedolizumab in Children and Teenagers With Moderate to Severe Crohn's Disease (CD)

for Crohn's Disease (CD)

22 locations incl. Phoenix

Sponsor: Takeda

Sex: All·Age: 2 - 17

Code: NCT04779320·Phase 3·Recruiting

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Social Support and Reduced Fear Acquisition

for Fear

1 location in Los Angeles

Sponsor: University of California, Los Angeles

Sex: All·Age: 18 - 55·Accepts healthy volunteers

Code: NCT04564976·Recruiting

Apply to this trial

TReatment for ImmUne Mediated PathopHysiology

for Acute Liver Failure

24 locations incl. Los Angeles

Sponsor: National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

Sex: All·Age: 1 - 18

Code: NCT04862221·Phase 2·Recruiting

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Azacitidine or Decitabine With Venetoclax for Acute Myeloid Leukemia With Prior Hypomethylating Agent Failure

for Acute Myeloid Leukemia

Drug: Venetoclax

4 locations incl. Clovis

Sponsor: Brian Jonas

Sex: All·Age: 18+

Code: NCT04905810·Phase 2·Recruiting

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Five or Ten Year Colonoscopy for 1-2 Non-Advanced Adenomatous Polyps

for Adenocarcinoma of the Colon

472 locations incl. Fairbanks

Sponsor: NRG Oncology

Sex: All·Age: 45 - 70

Code: NCT05080673·Recruiting

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Model-based Electrical Brain Stimulation

for Medication Refractory Epilepsy Patients With Electrodes Already Implanted Based on Clinical Criteria for Standard Monitoring

2 locations incl. Los Angeles

Sponsor: University of Southern California

Sex: All·Age: 18+

Code: NCT05327387·Recruiting

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Assessment of CCM in HF With Higher Ejection Fraction

for Heart Failure

105 locations incl. Birmingham

Sponsor: Impulse Dynamics

Sex: All·Age: 18+

Code: NCT05064709·Recruiting

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Social Support and Enhanced Fear Extinction

for Fear

1 location in Los Angeles

Sponsor: University of California, Los Angeles

Sex: All·Age: 18 - 55·Accepts healthy volunteers

Code: NCT04565041·Recruiting

Apply to this trial

DETERMINE: Detemir vs NPH

for Gestational Diabetes

1 location in Los Angeles

Sponsor: University of California, Los Angeles

Sex: All·Age: 18+

Code: NCT05124457·Phase 2·Recruiting

Apply to this trial

Secretin in Refeeding

for Anorexia in Adolescence

1 location in Los Angeles

Sponsor: University of California, Los Angeles

Sex: All·Age: 13 - 24

Code: NCT05235867·Recruiting

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The Effect of Zolpidem on Outcomes Following Lumbar Spine Fusion

for Spine Fusion

1 location in Los Angeles

Sponsor: University of Southern California

Sex: All·Age: 18 - 75

Code: NCT05746143·Phase 4·Recruiting

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A Phase 1/2a Study of DB-1303/BNT323 in Advanced/Metastatic Solid Tumors

for HER2-positive Advanced Solid Tumor

Drug: DB-1303/BNT323

35 locations incl. Cerritos

Sponsor: DualityBio Inc.

Sex: All·Age: 18+

Code: NCT05150691·Phase 1, Phase 2·Recruiting

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CBL0137 for the Treatment of Relapsed or Refractory Solid Tumors, Including CNS Tumors and Lymphoma

for Diffuse Midline Glioma, H3 K27-Altered

34 locations incl. Birmingham

Sponsor: Children's Oncology Group

Sex: All·Age: 12 Months - 21

Code: NCT04870944·Phase 1, Phase 2·Recruiting

Apply to this trial