Paid Clinical Trials in California

California has 6,389 paid clinical trials enrolling now across cities including Los Angeles, San Francisco and San Diego. Search by condition, age, or phase to find compensated research studies accepting participants near you.

Research sites in California include Stanford Medicine, UCLA Health and UCSF, running studies across oncology, cardiology, neurology, and more. Both patients and healthy volunteers may qualify. Most studies offer compensation for time and travel.

Recruiting trial data synced daily from ClinicalTrials.gov. Last sync: July 25, 2026.

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5,286 clinical trials

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Study of GB-4362 With Enfortumab Vedotin and Pembrolizumab for Advanced Urothelial Cancer

for Advanced Urothelial Cancer

Sites in Duarte, Irvine +8 more locations

Sponsor: Generate Biomedicines

Sex: All·Age: 18+

Code: NCT07484022·Phase 1·Recruiting·Listed Mar 2026

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A Study to Evaluate the Efficacy and Safety of E2086 in Adults With Narcolepsy

for Narcolepsy

Sites in Santa Ana +16 more locations

Sponsor: Eisai Inc.

Sex: All·Age: 18+

Code: NCT07493265·Phase 2·Recruiting·Listed Mar 2026

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A Phase IIb Dose-ranging Study to Assess the Efficacy and Safety of GIA632 in Participants With Non-segmental Vitiligo

for Non-segmental Vitiligo

Drug: GIA632

Sites in San Diego, Fountain Valley +19 more locations

Sponsor: Novartis Pharmaceuticals

Sex: All·Age: 18 - 99

Code: NCT07431177·Phase 2·Recruiting·Listed Feb 2026

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Stroke and Systemic Embolism Prevention in Adult Participants With Atrial Fibrillation for Whom Oral Anticoagulation is Unsuitable

for Atrial Fibrillation (AF)

Sites in Pasadena, Fremont +16 more locations

Sponsor: Regeneron Pharmaceuticals

Sex: All·Age: 18+

Code: NCT07430956·Phase 3·Recruiting·Listed Feb 2026

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A Solid Tumor Study for Long Term Treatment of Cancer Patients Who Participated in Adagrasib Studies

for Solid Tumors

Drug: Adagrasib

Sites in Long Beach, Bellflower +13 more locations

Sponsor: Mirati Therapeutics Inc.

Sex: All·Age: 18+

Code: NCT07415031·Phase 2·Recruiting·Listed Feb 2026

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Study of INCA036978 in Participants With Myeloproliferative Neoplasms

for Myeloproliferative Neoplasms

Drug: INCA036978

Sites in Los Angeles, Irvine +21 more locations

Sponsor: Incyte Corporation

Sex: All·Age: 18+

Code: NCT07441694·Phase 1·Recruiting·Listed Mar 2026

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A Research Study Comparing How Well Different Doses of the Medicine NNC0662-0419 Lower Blood Sugar in People With Type 2 Diabetes

for Diabetes Mellitus, Type 2

Drug: NNC0662-0419

Sites in San Diego, Long Beach +21 more locations

Sponsor: Novo Nordisk A/S

Sex: All·Age: 18 - 75

Code: NCT07415954·Phase 2·Recruiting·Listed Feb 2026

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A Study to Learn How Stargardt-type Eye Conditions Progress in Children and Adults

for Stargardt Disease

Sites in Palo Alto, Sacramento +10 more locations

Sponsor: Astellas Pharma Global Development, Inc.

Sex: All·Age: 6+

Code: NCT07425574·Recruiting·Listed Feb 2026

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A Study of TAK-505 in Adults With Solid Tumors

for Malignant Solid Tumors

Sites in San Francisco, San Diego +13 more locations

Sponsor: Takeda

Sex: All·Age: 18+

Code: NCT07436728·Phase 1, Phase 2·Recruiting·Listed Feb 2026

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Efficacy and Safety of Intranasal Cenegermin in Adult Participants With Non-Arteritic Anterior Ischemic Optic Neuropathy (NAION)

for Non-Arteritic Anterior Ischemic Optic Neuropathy

Sites in Los Angeles, Newport Beach +16 more locations

Sponsor: Dompé Farmaceutici S.p.A

Sex: All·Age: 50 - 80

Code: NCT07453888·Phase 3·Recruiting·Listed Mar 2026

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A Study to Evaluate the Safety, Tolerability, Pharmacodynamics, and Pharmacokinetics of RO7823653 in Participants With Diabetic Macular Edema (DME)

for Diabetic Macular Edema

Drug: RO7823653

Sites in Walnut Creek, Beverly Hills +8 more locations

Sponsor: Genentech, Inc.

Sex: All·Age: 18+

Code: NCT07425522·Phase 1·Recruiting·Listed Feb 2026

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A Study to Evaluate the Efficacy, Safety, Pharmacodynamics (PD), and Pharmacokinetics (PK) of Selnoflast in Reducing Vascular Inflammation in Participants With Atherosclerosis at Risk for Major Adverse Cardiac Events

for Atherosclerosis

Sites in Irvine, Beverly Hills +13 more locations

Sponsor: Genentech, Inc.

Sex: All·Age: 18 - 80

Code: NCT07448038·Phase 2·Recruiting·Listed Mar 2026

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A Study to Evaluate the Long-term Safety and Tolerability of KarXT and KarX-EC for the Treatment of Schizophrenia and Autism-Related Irritability in Adolescents, Respectively

for Schizophrenia

Drug: KarXT

Sites in Los Angeles, San Francisco +49 more locations

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

Sex: All·Age: 5 - 17

Code: NCT07424404·Phase 3·Recruiting·Listed Feb 2026

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A Study to Learn About mRNA Vaccines Against Influenza in Adults

for Healthy Adults

Sites in Walnut Creek +14 more locations

Sponsor: Pfizer

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

Code: NCT07431853·Phase 2·Recruiting·Listed Feb 2026

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A Study of Eloralintide (LY3841136) in Participants With Obstructive Sleep Apnea and Obesity or Overweight

for Sleep Apnea, Obstructive

Drug: Eloralintide

Sites in Long Beach, Riverside +21 more locations

Sponsor: Eli Lilly and Company

Sex: All·Age: 18+

Code: NCT07369011·Phase 3·Recruiting·Listed Jan 2026

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A Multicenter, Randomized, Double-Masked, Placebo-Controlled Pilot Study to Evaluate the Efficacy and Safety of ZOC2017217 in Subjects With Age-Related Cataract

for Age Related Cataracts

Sites in Torrance, Glendale +16 more locations

Sponsor: Ocusun Ophthalmic Pharmaceutical (Guangzhou) Co., Ltd.

Sex: All·Age: 50+

Code: NCT07395986·Phase 2·Recruiting·Listed Feb 2026

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KQB198 in Combination With Imatinib in Participants With Advanced/Metastatic GIST in 1st Line Setting (SynerGIST-1st Line)

for GIST - Gastrointestinal Stromal Tumor

Sites in Los Angeles +15 more locations

Sponsor: Kumquat Biosciences Inc.

Sex: All·Age: 18+

Code: NCT07406633·Phase 2·Recruiting·Listed Feb 2026

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Phase 3 Extension Study of ADX-324 in Participants With Hereditary Angioedema (HAE)

for Hereditary Angioedema (HAE)

Sites in San Diego, Walnut Creek +13 more locations

Sponsor: ADARx Pharmaceuticals, Inc.

Sex: All·Age: 18+

Code: NCT07428499·Phase 3·Recruiting·Listed Feb 2026

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A Study to Evaluate the Efficacy and Safety of Veverimer for the Treatment of Metabolic Acidosis

for CKD

Sites in Los Angeles, San Diego +19 more locations

Sponsor: Renibus Therapeutics, Inc.

Sex: All·Age: 18+

Code: NCT07355062·Phase 3·Recruiting·Listed Jan 2026

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Study Evaluating the Safety and Efficacy of HWK-007, a PTK7-directed Antibody Drug Conjugate in Participants With Advanced Solid Tumors

for Endometrial Cancer

Sites in Los Angeles +11 more locations

Sponsor: Whitehawk Therapeutics, Inc.

Sex: All·Age: 18+

Code: NCT07444814·Phase 1·Recruiting·Listed Mar 2026

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A Study to Assess the Effectiveness and Safety of IPN10200 in Adults With Moderate to Severe Wrinkle-like Lines Between the Eyebrows

for Moderate to Severe Glabellar Lines

Sites in San Diego, Santa Monica +15 more locations

Sponsor: Ipsen

Sex: All·Age: 18 - 80

Code: NCT07427797·Phase 3·Recruiting·Listed Feb 2026

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A Study of MUC16-Directed Antibody Drug Conjugate HWK-016 in Participants With Advanced Solid Tumors.

for PROC

Sites in Los Angeles +11 more locations

Sponsor: Whitehawk Therapeutics, Inc.

Sex: All·Age: 18+

Code: NCT07470853·Phase 1·Recruiting·Listed Mar 2026

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Phase 3 Pivotal Trial Comparing CARTISTEM® and Surgical Comparator for Knee Cartilage Lesions and Osteoarthritis

for Knee Cartilage Defects

Sites in Santa Monica, La Mesa +18 more locations

Sponsor: Medipost, Inc.

Sex: All·Age: 18 - 75

Code: NCT07339111·Phase 3·Recruiting·Listed Jan 2026

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Study of Silevertinib With Temozolomide for the Treatment of Newly Diagnosed GBM With Unmethylated MGMT and EGFRvIII

for Glioblastoma (GBM)

Sites in Los Angeles +21 more locations

Sponsor: Black Diamond Therapeutics, Inc.

Sex: All·Age: 18+

Code: NCT07326566·Phase 2·Recruiting·Listed Jan 2026

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Phase 2 Study of Kylo-11 in ASCVD Patients With Elevated Lp(a)

for Lipoprotein Disorder

Sites in Los Angeles, San Diego +14 more locations

Sponsor: Kylonova (Xiamen) Biopharma co., LTD.

Sex: All·Age: 18 - 80

Code: NCT07327840·Phase 2·Recruiting·Listed Jan 2026

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Study to Evaluate LB-102 for the Treatment of Adult Patients With Acute Schizophrenia

for Schizophrenia

Sites in Riverside, Garden Grove +11 more locations

Sponsor: LB Pharmaceuticals Inc.

Sex: All·Age: 18 - 65

Code: NCT07363577·Phase 3·Recruiting·Listed Jan 2026

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Study to Evaluate Resmetirom in Post-Liver Transplant Patients With MASH

for MASH - Metabolic Dysfunction-Associated Steatohepatitis

Sites in Los Angeles, San Francisco +14 more locations

Sponsor: Madrigal Pharmaceuticals, Inc.

Sex: All·Age: 18 - 75

Code: NCT07335601·Phase 2·Recruiting·Listed Jan 2026

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Lot-to-lot Consistency Study of a 21-valent Pneumococcal Conjugate Vaccine in Healthy Infants From 2 Months of Age

for Pneumococcal Immunization

Sites in Los Angeles, Huntington Park +11 more locations

Sponsor: Sanofi

Sex: All·Age: 42 Days - 89 Days·Accepts healthy volunteers

Code: NCT07348692·Phase 3·Recruiting·Listed Jan 2026

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Efficacy, Safety, and Tolerability of NBI-1065890 Versus Placebo in Adults With Tardive Dyskinesia

for Tardive Dyskinesia

Sites in Long Beach, Torrance +16 more locations

Sponsor: Neurocrine Biosciences

Sex: All·Age: 18 - 75

Code: NCT07365462·Phase 2·Recruiting·Listed Jan 2026

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A Trial of TAK-861 for the Treatment of Narcolepsy With Cataplexy

for Narcolepsy Type 1 (NT1)

Sites in Redwood City +10 more locations

Sponsor: Takeda

Sex: All·Age: 16 - 70

Code: NCT07363720·Phase 3·Recruiting·Listed Jan 2026

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A Study of Enpatoran in Participants With Cutaneous Manifestations of Lupus With or Without Systemic Disease

for Systemic Lupus Erythematosus (SLE)

Drug: Enpatoran

Sites in Los Angeles, Thousand Oaks +10 more locations

Sponsor: EMD Serono Research & Development Institute, Inc.

Sex: All·Age: 18 - 75

Code: NCT07332481·Phase 3·Recruiting·Listed Jan 2026

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Efficacy and Safety of Vamifeport in Adult Participants With Homeostatic Iron Regulator Gene (HFE)-Related Hereditary Hemochromatosis

for Homeostatic Iron Regulator Gene-related Hereditary Hemochromatosis

Drug: Vamifeport

Sites in San Diego +18 more locations

Sponsor: CSL Behring

Sex: All·Age: 18+

Code: NCT07332091·Phase 2·Recruiting·Listed Jan 2026

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A Study to Evaluate the Efficacy and Safety of JNJ-88545223 for the Treatment of Participants With Active Psoriatic Arthritis

for Arthritis, Psoriatic

Sites in San Diego, Huntington Beach +14 more locations

Sponsor: Janssen Research & Development, LLC

Sex: All·Age: 18+

Code: NCT07321873·Phase 2·Recruiting·Listed Jan 2026

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A Study of Brenipatide in Adult Participants With Bipolar Disorder (RENEW-Bipolar-1)

for Bipolar Disorder

Drug: Brenipatide

Sites in Orange +19 more locations

Sponsor: Eli Lilly and Company

Sex: All·Age: 18 - 75

Code: NCT07286175·Phase 2·Recruiting·Listed Dec 2025

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Non-inferiority Study of Frexalimab Subcutaneous Administration Compared to Intravenous Administration in Adult Participants With Multiple Sclerosis

for Multiple Sclerosis

Drug: Frexalimab

Sites in West Hollywood +21 more locations

Sponsor: Sanofi

Sex: All·Age: 18 - 60

Code: NCT07325292·Phase 3·Recruiting·Listed Jan 2026

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A Study to Investigate the Efficacy, Safety and Tolerability of Votoplam in Participants With Huntington's Disease

for Huntington Disease

Sites in La Jolla +20 more locations

Sponsor: Novartis Pharmaceuticals

Sex: All·Age: 21 - 70

Code: NCT07326709·Phase 3·Recruiting·Listed Jan 2026

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Study of AMXT 1501 and DFMO in Combination With Standard Therapies in Advanced Solid Tumors

for Melanoma (Skin Cancer)

Sites in Los Angeles +16 more locations

Sponsor: Aminex Therapeutics, Inc.

Sex: All·Age: 18+

Code: NCT07287917·Phase 1, Phase 2·Recruiting·Listed Dec 2025

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CR-001 in Adult Participants With Locally Advanced or Metastatic Solid Tumors

for Locally Advanced / Metastatic Solid Tumors

Sites in Los Angeles +13 more locations

Sponsor: Crescent Biopharma, Inc.

Sex: All·Age: 18+

Code: NCT07335497·Phase 1, Phase 2·Recruiting·Listed Jan 2026

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A Study to Assess Real-World Use and Outcomes of TAR-200 for Participants With Non-Muscle Invasive Bladder Cancer (NMIBC) in the United States

for Non-Muscle Invasive Bladder Neoplasms

Sites in Los Angeles +12 more locations

Sponsor: Janssen Research & Development, LLC

Sex: All·Age: 18+

Code: NCT07309445·Recruiting·Listed Dec 2025

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A Study to Investigate GB-0895 Adjunctive Therapy in Adults and Adolescents With Severe Uncontrolled Asthma (SOLAIRIA-2)

for Severe Asthma

Sites in Bakersfield, Inglewood +15 more locations

Sponsor: Generate Biomedicines

Sex: All·Age: 12 - 80

Code: NCT07359846·Phase 3·Recruiting·Listed Jan 2026

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