Paid Clinical Trials in California

California has 6,520 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: June 19, 2026.

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6,520 clinical trials

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A Study of Long-acting Antibodies Alone and in Combinations for Moderate to Severe Ulcerative Colitis

for Ulcerative Colitis

25 locations incl. Canoga Park

Sponsor: Spyre Therapeutics, Inc.

Sex: All·Age: 18+

Code: NCT07012395·Phase 2·Recruiting

Apply to this trial

A Study of LY3867070 in Healthy Participants

for Healthy

2 locations incl. Anaheim

Sponsor: Eli Lilly and Company

Sex: All·Age: 18 - 65·Accepts healthy volunteers

Code: NCT07021547·Phase 1·Recruiting

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Study to Assess the Efficacy and Safety of IMVT-1402 in Participants With Mild to Severe Generalized Myasthenia Gravis

for Generalized Myasthenia Gravis

Drug: IMVT-1402

47 locations incl. Huntsville

Sponsor: Immunovant Sciences GmbH

Sex: All·Age: 18 - 80

Code: NCT07039916·Phase 3·Recruiting

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A Study of Patritumab Deruxtecan in Pediatric Participants With Relapsed or Refractory Solid Tumors (MK-9999-01C/LIGHTBEAM-U01)

for Malignant Neoplasm

17 locations incl. Los Angeles

Sponsor: Merck Sharp & Dohme LLC

Sex: All·Age: 1 Month - 17

Code: NCT06941272·Phase 1, Phase 2·Recruiting

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Small Cell Lung Cancer Community Engagement to Eliminate Research Discepancies

for Small-cell Lung Cancer

52 locations incl. Multiple Locations

Sponsor: Addario Lung Cancer Medical Institute

Sex: All·Age: 18+

Code: NCT06486428·Recruiting

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Adding the Immunotherapy Drug Cemiplimab to Usual Treatment for People With Advanced Non-Small Cell Lung Cancer Who Had Previous Treatment With Platinum Chemotherapy and Immunotherapy (An Expanded Lung-MAP Treatment Trial)

for Recurrent Lung Non-Small Cell Carcinoma

Drug: Cemiplimab

386 locations incl. Daphne

Sponsor: SWOG Cancer Research Network

Sex: All·Age: 18+

Code: NCT06616584·Phase 2, Phase 3·Recruiting

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A Study to Evaluate the Safety and Efficacy of A2B395, an Allogeneic Logic-gated CAR T, in Participants With Solid Tumors That Express EGFR and Have Lost HLA-A*02 Expression

for Solid Tumor, Adult

10 locations incl. Gilbert

Sponsor: A2 Biotherapeutics Inc.

Sex: All·Age: 18+

Code: NCT06682793·Phase 1, Phase 2·Recruiting

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Safety and Efficacy of EIK1001 in Combo With Pembro Versus Placebo and Pembro as First-Line Therapy in Patients With Advanced Melanoma.

for Advanced Melanoma

11 locations incl. Chandler

Sponsor: Eikon Therapeutics

Sex: All·Age: 18+

Code: NCT06697301·Phase 2, Phase 3·Recruiting

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A Study to Evaluate the Safety and Tolerability of Eravacycline in Pediatric Patients Aged 8 to 17 With Complicated Intra-abdominal Infections (cIAI)

for Complicated Intra-abdominal Infections (cIAI)

5 locations incl. Los Angeles

Sponsor: Tetraphase Pharmaceuticals, Inc

Sex: All·Age: 8 - 17

Code: NCT06794541·Phase 2·Recruiting

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A Study to Evaluate the Safety and Effectiveness of ALKS 2680 in Subjects With Idiopathic Hypersomnia

for Idiopathic Hypersomnia

Drug: ALKS 2680

32 locations incl. Cullman

Sponsor: Alkermes, Inc.

Sex: All·Age: 18 - 70

Code: NCT06843590·Phase 2·Recruiting

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Motor Outcomes to Validate Evaluations in Pediatric FSHD (MOVE Peds)

for Muscular Dystrophy, Facioscapulohumeral

6 locations incl. Palo Alto

Sponsor: University of Kansas Medical Center

Sex: All·Age: 5 - 17

Code: NCT06847282·Recruiting

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A Study of Zolbetuximab Together With Pembrolizumab and Chemotherapy in Adults With Gastric Cancer

for Locally Advanced Unresectable Gastroesophageal Junction (GEJ) Adenocarcinoma or Cancer

Drug: zolbetuximab

36 locations incl. Birmingham

Sponsor: Astellas Pharma Global Development, Inc.

Sex: All·Age: 18+

Code: NCT06901531·Phase 3·Recruiting

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A Study to Learn More About the Effects and Safety of Felzartamab Infusions in Adults With Primary Membranous Nephropathy (PMN)

for Primary Membranous Nephropathy

16 locations incl. Huntsville

Sponsor: Biogen

Sex: All·Age: 18 - 80

Code: NCT06962800·Phase 3·Recruiting

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Salud Diabetes: A Pilot Study Comparing Lifestyle Interventions and Real-Time Continuous Glucose Monitoring

for Diabetes

1 location in Santa Barbara

Sponsor: Sutter Health

Sex: All·Age: 18 - 89

Code: NCT06999356·Recruiting

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Minima Stent System Post- Approval Study (PAS)

for Pulmonary Artery Stenosis

15 locations incl. Los Angeles

Sponsor: Renata Medical

Sex: All·Age: All ages

Code: NCT06828770·Recruiting

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Managing Transient Neurologic Episodes in Surgery for Moyamoya Disease

for Moya Moya Disease

1 location in Palo Alto

Sponsor: Stanford University

Sex: All·Age: 3+

Code: NCT06880341·Recruiting

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A Study to Compare Sacituzumab Tirumotecan (MK-2870) in Combination With Pembrolizumab (MK-3475) Versus Pembrolizumab Alone as Treatment in Participants With Mismatch Repair Proficient Endometrial Cancer (MK-2870-033/TroFuse-033/GOG-3119/ENGOT-en29)

for Endometrial Cancer

44 locations incl. Mobile

Sponsor: Merck Sharp & Dohme LLC

Sex: Female·Age: 18+

Code: NCT06952504·Phase 3·Recruiting

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Effectiveness of Qualia Magnesium+® Supplementation on RBC Magnesium Levels

for Magnesium Deficiency

1 location in Carlsbad

Sponsor: Qualia Life Sciences

Sex: All·Age: 21+·Accepts healthy volunteers

Code: NCT06979648·Not Yet Recruiting

Automated Robotic TCD in Traumatic Brain Injury

for Brain Injuries, Traumatic

3 locations incl. Davis

Sponsor: Virginia Commonwealth University

Sex: All·Age: 18+

Code: NCT05848297·Recruiting

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MagicTouch™Sirolimus-Coated Balloon for Treatment of Coronary Artery Lesions in Small Vessels

for Coronary Artery Disease

24 locations incl. Gilbert

Sponsor: Concept Medical Inc.

Sex: All·Age: 18 - 80

Code: NCT06271590·Recruiting

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Assessing Improvements in Mood and Sleep Trial

for Depression

3 locations incl. Los Angeles

Sponsor: University of Pittsburgh

Sex: All·Age: 55+

Code: NCT06639477·Recruiting

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FOLFOX, Botensilimab, and Balstilimab for the Treatment of Localized Rectal Cancer Before Surgery

for Rectal Adenocarcinoma

Drug: Botensilimab

1 location in Duarte

Sponsor: City of Hope Medical Center

Sex: All·Age: 18+

Code: NCT06780787·Phase 2·Recruiting

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Study Evaluating the Safety and Efficacy of Neffy or Intramuscular Adrenalin in Patients With Allergic Reactions After Oral Food Challenge or Allergen Immunotherapy

for Allergic Reactions

6 locations incl. La Jolla

Sponsor: ARS Pharmaceuticals, Inc.

Sex: All·Age: 4+

Code: NCT06834165·Phase 4·Recruiting

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A Study to Test Whether Vicadrostat (BI 690517) in Combination With Empagliflozin Helps People With Heart Failure and a Weak Pumping Function of the Left Side of the Heart

for Heart Failure

Drug: Empagliflozin

105 locations incl. Mobile

Sponsor: Boehringer Ingelheim

Sex: All·Age: 18+

Code: NCT06935370·Phase 3·Recruiting

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A Study to Learn About the Study Medicine Called PF-07275315 in People With Moderate-To-Severe Asthma

for Asthma

Drug: PF-07275315

36 locations incl. Mobile

Sponsor: Pfizer

Sex: All·Age: 18 - 70

Code: NCT06977581·Phase 2·Recruiting

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Induction of Dreaming With EEG and Anesthesia in Healthy Adults

for Healthy Volunteers

1 location in Stanford

Sponsor: Stanford University

Sex: All·Age: 18 - 70·Accepts healthy volunteers

Code: NCT07198711·Phase 1·Enrolling By Invitation

Double-blind, Randomized, Placebo-controlled, Multicenter Study to Evaluate the Efficacy and Safety of Ravulizumab Administered Intravenously in Adult Participants at High Risk of Delayed Graft Function After Kidney Transplantation

for Delayed Graft Function

32 locations incl. Phoenix

Sponsor: Alexion Pharmaceuticals, Inc.

Sex: All·Age: 18+

Code: NCT06830798·Phase 3·Recruiting

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Pelacarsen Roll-over Extension Program

for Atherosclerotic Cardiovascular Disease

Drug: Pelacarsen

91 locations incl. Birmingham

Sponsor: Novartis Pharmaceuticals

Sex: All·Age: 18 - 100

Code: NCT06875973·Phase 3·Recruiting

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Effect of Snacks on Aging

for Aging

1 location in Los Angeles

Sponsor: University of California, Los Angeles

Sex: Female·Age: 55 - 75·Accepts healthy volunteers

Code: NCT06879626·Recruiting

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A Study to Assess the Safety and Effectiveness of the UrOActive® Artificial Urinary sPHincter (AUS)

for Stress Urinary Incontinence (SUI)

13 locations incl. Los Angeles

Sponsor: UroMems SAS

Sex: Male·Age: 22+

Code: NCT06968741·Recruiting

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A Study of Patients With Lower Extremity Acute Limb Ischemia to Remove Thrombus With the Indigo™ Aspiration System (STRIDE II)

for Lower Extremity Acute Limb Ischemia

32 locations incl. Scottsdale

Sponsor: Penumbra Inc.

Sex: All·Age: 18+

Code: NCT06747117·Recruiting

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Comparing New Treatments for People With Newly Diagnosed Acute Myeloid Leukemia That Has an IDH2 Gene Change (A MyeloMATCH Treatment Trial)

for Acute Myeloid Leukemia

129 locations incl. Tucson

Sponsor: National Cancer Institute (NCI)

Sex: All·Age: 18+

Code: NCT06672146·Phase 2·Recruiting

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Platform Study to Evaluate the Efficacy and Safety of Investigational Compound(s) in Patients With Moderate to Severe Atopic Dermatitis

for Atopic Dermatitis

22 locations incl. Birmingham

Sponsor: Novartis Pharmaceuticals

Sex: All·Age: 18 - 100

Code: NCT06947993·Phase 2·Recruiting

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A Hybrid 1 Effectiveness-Implementation Trial of Partner-Assisted Prolonged Exposure for PTSD

for Post Traumatic Stress Disorder

4 locations incl. Phoenix

Sponsor: United States Department of Defense

Sex: All·Age: 18+

Code: NCT06990191·Recruiting

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Tibulizumab Skin Healing and Inflammation Evaluation for Lasting Defense

for Hidradenitis Suppurativa (HS)

31 locations incl. Phoenix

Sponsor: Zura Bio Inc

Sex: All·Age: 18 - 70

Code: NCT06993610·Phase 2·Recruiting

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Evaluation of Dipyridamole in Preventing Post-Transplant Hypophosphatemia in Kidney Transplant Recipients

for Hypophosphatemia

1 location in Stanford

Sponsor: Stanford University

Sex: All·Age: 18+

Code: NCT06824454·Phase 2·Recruiting

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Probiotic Administration for Adolescent Depression

for Depression

1 location in San Francisco

Sponsor: University of California, San Francisco

Sex: All·Age: 15 - 24

Code: NCT06898788·EARLY_Phase 1·Recruiting

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Optimizing Reperfusion to Improve Outcomes and Neurologic Function

for Acute Ischemic Stroke

17 locations incl. Long Beach

Sponsor: Corxel Pharmaceuticals

Sex: All·Age: 18 - 90

Code: NCT06990867·Phase 2, Phase 3·Recruiting

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SLV-154 Treatment of Metastatic Solid Tumors

for Squamous Cell Cancer of Head and Neck (SCCHN)

9 locations incl. Newport Beach

Sponsor: Solve Therapeutics

Sex: All·Age: 18+

Code: NCT06771219·Phase 1·Recruiting

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A Study of TAK-411 in Adults With Chronic Inflammatory Demyelinating Polyradiculoneuropathy (CIDP)

for Chronic Inflammatory Demyelinating Polyradiculoneuropathy (CIDP)

13 locations incl. La Jolla

Sponsor: Takeda

Sex: All·Age: 18+

Code: NCT06798012·Phase 2·Recruiting

Apply to this trial