California is currently home to 5602 active clinical trials, seeking participants for engagement in research studies. These trials take place at a variety of cities in the state, including Los Angeles, San Francisco, San Diego and Sacramento. Whether you're a healthy volunteer interested in paid medical research or someone seeking trials related to a specific condition, the state offers a diverse array of opportunities in your vicinity.
Evaluating the Addition of Adjuvant Chemotherapy to Ovarian Function Suppression Plus Endocrine Therapy in Premenopausal Patients With pN0-1, ER-Positive/HER2-Negative Breast Cancer and an Oncotype Recurrence Score Less Than or Equal to 25
NCT05879926
Recruiting
This Phase III Trial will determine whether adjuvant chemotherapy (ACT) added to ovarian function suppression (OFS) plus endocrine therapy (ET) is superior to OFS plus ET in improving invasive breast cancer-free survival (IBCFS) among premenopausal, early- stage breast cancer (EBC) patients with estrogen receptor (ER)-positive, HER2-negative tumors and 21-gene recurrence score (RS) between 16-25 (for pN0 patients) and 0-25 (for pN1 patients).
Gender:
FEMALE
Ages:
Between 18 years and 60 years
Trial Updated:
08/01/2025
Locations: Kaiser Permanente-Anaheim, Anaheim, California
Conditions: Breast Cancer
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A Study to Evaluate the Long-Term Safety of Astegolimab in Participants With Chronic Obstructive Pulmonary Disease (COPD)
NCT05878769
Recruiting
The purpose of this study is to assess the long-term safety and to explore the efficacy of astegolimab in participants with chronic obstructive pulmonary disease (COPD) who have completed the 52-week placebo-controlled treatment period in parent studies GB43311 or GB44332.
Gender:
ALL
Ages:
Between 40 years and 90 years
Trial Updated:
08/01/2025
Locations: Kern Allergy and Medical Research, Bakersfield, California
Conditions: Chronic Obstructive Pulmonary Disease
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A Study to Evaluate ATP150/ATP152, VSV-GP154 and Ezabenlimab in Patients With KRAS G12D/G12V Mutated PDAC (KISIMA-02)
NCT05846516
Recruiting
The goal of this clinical trial is to test an experimental treatment (immunotherapy) in pancreatic cancer patients. The main research objectives are: * to evaluate if the KISIMA-02 treatment is safe and well-tolerated (first part) * to evaluate if the KISIMA-02 treatment has an impact on the time to observe a possible reappearance of the tumor (second part) Participants will receive: i) a therapeutic protein vaccine ATP150 or ATP 152 ii) a viral vector VSV-GP154 iii) an immune checkpoint inhi... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/01/2025
Locations: USC/Norris Comprehensive Center, Los Angeles, California
Conditions: Pancreatic Ductal Adenocarcinoma
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Study to Assess Adverse Events, Change in Disease Activity, and How Oral Upadacitinib Moves Through the Body of Pediatric Participants With Moderately to Severely Active Ulcerative Colitis.
NCT05782907
Recruiting
Ulcerative colitis (UC) is a type of inflammatory bowel disease that causes inflammation and bleeding from the lining of the rectum and colon (large intestine). This study will assess how safe and effective Upadacitinib is in treating pediatric participants with UC. Adverse events and change in disease activity will be assessed. Upadacitinib (RINVOQ) is a drug approved in adults for moderate- to severely active UC and is being developed for moderate- to severely active UC in pediatric participa... Read More
Gender:
ALL
Ages:
Between 2 years and 17 years
Trial Updated:
08/01/2025
Locations: Kindred Medical Institute - Corona /ID# 255484, Corona, California
Conditions: Ulcerative Colitis
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Study of Efficacy and Safety of Iptacopan in Participants With IC-MPGN
NCT05755386
Recruiting
This study is designed as a multicenter, randomized, double-blind, parallel group, placebo-controlled study to evaluate the efficacy and safety of iptacopan (LNP023) in idiopathic immune complex mediated membranoproliferative glomerulonephritis.
Gender:
ALL
Ages:
Between 12 years and 60 years
Trial Updated:
08/01/2025
Locations: Ronald Reagan UCLA Medical Center, Los Angeles, California
Conditions: IC-MPGN
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Testing Radiation and HER2-targeted Therapy Versus HER2-targeted Therapy Alone for Low-risk HER2-positive Breast Cancer
NCT05705401
Recruiting
This Phase III trial compares the recurrence-free interval (RFI) among patients with early-stage, low risk HER2+ breast cancer who undergo breast conserving surgery and receive HER2-directed therapy, and are randomized to not receive adjuvant breast radiotherapy versus those who are randomized to receive adjuvant radiotherapy per the standard of care.
Gender:
ALL
Ages:
40 years and above
Trial Updated:
08/01/2025
Locations: Kaiser Permanente-Deer Valley Medical Center, Antioch, California
Conditions: HER2-positive Breast Cancer
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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
NCT05677971
Recruiting
The main aim of this study is to learn if fazirsiran reduces liver scarring (fibrosis) compared to placebo. Other aims are to learn if fazirsiran slows down the disease worsening in the liver, to get information on how fazirsiran affects the body (called pharmacodynamics), to learn if fazirsiran reduces other liver injury (inflammation) and the abnormal Z-AAT protein in the liver, to get information on how the body processes fazirsiran (called pharmacokinetics), to test how well fazirsiran works... Read More
Gender:
ALL
Ages:
Between 18 years and 75 years
Trial Updated:
08/01/2025
Locations: Gastroenterology & Liver Institute, Escondido, California
Conditions: Alpha1-Antitrypsin Deficiency
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A Study to Evaluate Astegolimab in Participants With Chronic Obstructive Pulmonary Disease
NCT05595642
Recruiting
This study will evaluate the efficacy and safety of astegolimab compared with placebo in participants with chronic obstructive pulmonary disease (COPD) who are former or current smokers and have a history of frequent exacerbations.
Gender:
ALL
Ages:
Between 40 years and 80 years
Trial Updated:
08/01/2025
Locations: Kern Research, Bakersfield, California
Conditions: Chronic Obstructive Pulmonary Disease (COPD)
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Universal Rare Gene Study: A Registry and Natural History Study of Retinal Dystrophies Associated With Rare Disease-Causing Genetic Variants
NCT05589714
Recruiting
This is an international, multicenter study with two components: Registry * A standardized genetic screening and a prospective, standardized, cross-sectional clinical data collection * Enrollment is open to all genes on the RD Rare Gene List Natural History Study * A prospective, standardized, longitudinal Natural History Study * Enrollment opens gene-by-gene, based on funding and within-gene Registry enrollment The study objectives are as follows. Registry Objectives 1. Genotype Character... Read More
Gender:
ALL
Ages:
4 years and above
Trial Updated:
08/01/2025
Locations: USC Roski Eye Institute, Los Angeles, California
Conditions: Inherited Retinal Degeneration, Retinitis Pigmentosa
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Open-Label Umbrella Study To Evaluate Safety And Efficacy Of Elacestrant In Various Combination In Participants With Metastatic Breast Cancer
NCT05563220
Recruiting
This is a multicenter, Phase 1b/2 trial in participants with estrogen receptor positive/human epidermal growth factor receptor 2 negative (ER+/HER2-) advanced/metastatic breast cancer. The phase 1b part of the trial will determine the recommended Phase 2 dose (RP2D) of elacestrant when administered in combination with alpelisib, everolimus, palbociclib, capivasertib, and ribociclib. The Phase 2 part of the trial will evaluate the efficacy and safety of the various combinations.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/01/2025
Locations: OPN Healthcare (Arcadia Location), Arcadia, California
Conditions: Breast Cancer, Metastatic Breast Cancer
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A Phase 1 Study of AB521 Monotherapy and Combination Therapies in Renal Cell Carcinoma and Other Solid Tumors
NCT05536141
Recruiting
The purpose of this study is to evaluate the safety and tolerability of: * casdatifan when taken alone in participants with advanced solid tumor malignancies and clear cell renal cell carcinoma (ccRCC) during the dose escalation stage; and * casdatifan monotherapy and casdatifan in combination with cabozantinib or zimberelimab in participants with ccRCC in the dose expansion stage
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/01/2025
Locations: University of California at San Diego, San Diego, California
Conditions: Clear Cell Renal Cell Carcinoma, Solid Tumors
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Extension Study to Assess Batoclimab in Participants With Thyroid Eye Disease
NCT05517447
Recruiting
This is a 2-cohort (observational and treatment cohort) extension study for participants completing feeder studies (IMVT-1401-3201 or IMVT-1401-3202). The observational cohort will assess the durability of proptosis response of feeder studies off treatment. The treatment cohort will evaluate the efficacy of batoclimab as assessed by proptosis responder rate.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/01/2025
Locations: Site Number - 1520, Glendora, California
Conditions: Thyroid Eye Disease
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