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.
A Study Comparing the Efficacy and Safety of Zanidatamab to Trastuzumab, Each in Combination With Physician's Choice Chemotherapy, for the Treatment of Participants With Metastatic HER2-positive Breast Cancer
Recruiting
The efficacy and safety of zanidatamab in combination with physician's choice of chemotherapy compared with trastuzumab in combination with physician's choice of chemotherapy will be evaluated for the treatment of participants with metastatic HER2-positive breast cancer who have progressed on, or are intolerant to, previous T-DXd treatment.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/22/2025
Locations: The Oncology Institute Of Hope And Innovation, Cerritos, California
Conditions: Metastatic HER2-positive Breast Cancer
Saruparib (AZD5305) Plus Camizestrant Compared With CDK4/6 Inhibitor Plus Endocrine Therapy or Plus Camizestrant in HR-Positive, HER2-Negative (IHC 0, 1+, 2+/ ISH Non-amplified), BRCA1, BRCA2, or PALB2m Advanced Breast Cancer
Recruiting
The primary objective of the study is to measure efficacy of saruparib (AZD5305) plus camizestrant compared with physician's choice CDK4/6i plus ET in patients with BRCA1, BRCA2, or PALB2m, HR-positive, HER2-negative (defined as IHC 0, 1+, 2+/ ISH non-amplified) advanced breast cancer
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/22/2025
Locations: Research Site, Glendale, California
Conditions: Advanced Breast Cancer
A Study to Evaluate Pharmacokinetics of LY3209590 in Pediatric Participants With Type 2 Diabetes Mellitus
Recruiting
The main purpose of this study is to evaluate how much of LY3209590 gets into the blood stream after a single dose and how long it takes the body to remove it in pediatric participants with Type 2 Diabetes Mellitus (T2DM). The study will last for approximately 100 days.
Gender:
ALL
Ages:
Between 10 years and 17 years
Trial Updated:
08/22/2025
Locations: Children's Hospital Los Angeles, Los Angeles, California
Conditions: Type 2 Diabetes Mellitus
A Study to Test Whether BI 764524 Helps People With an Eye Condition Called Diabetic Retinopathy
Recruiting
This study is open to adults with diabetic retinopathy. People who have non-proliferative diabetic retinopathy of moderate or high severity can join the study. The purpose of this study is to find out whether a medicine called BI 764524 helps people with diabetic retinopathy. The study also aims to find a suitable treatment plan for BI 764524. Participants are put into 5 groups by chance. Participants in groups 1, 2, and 3 get BI 764524. Over 1 year, they get a different number of injections of... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/22/2025
Locations: California Retina Consultants-Bakersfield-65523, Bakersfield, California
Conditions: Diabetic Retinopathy
Effect of Retatrutide Compared With Placebo in Participants With Type 2 Diabetes and Moderate or Severe Renal Impairment, With Inadequate Glycemic Control on Basal Insulin, With or Without Metformin and/or SGLT2 Inhibitor (TRANSCEND-T2D-3)
Recruiting
The purpose of this study is to investigate the efficacy and safety of retatrutide compared with placebo in participants with Type 2 Diabetes and renal impairment, with inadequate glycemic control on basal insulin alone or a combination of basal insulin with or without metformin and/or sodium-glucose cotransporter-2 (SGLT2) inhibitor. The study will last about 14 months and may include up to 22 visits.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/22/2025
Locations: Kidney & Hypertension Center - Apple Valley, Apple Valley, California
Conditions: Type 2 Diabetes
Study to Evaluate the Safety and Efficacy of CSB-001 Ophthalmic Solution 0.1% in Subjects With Corneal Scars
Recruiting
This study will enroll subjects with recently formed corneal scars that resulted from a corneal insult presenting and diagnosed within the past approximately 30 days and not less than approximately 7 days. All subjects will be assigned to CSB-001 investigational treatment on Day 1. All subjects will dose with CSB-001 four times daily or three times daily starting on Day 1 and continue until Day 14. Subjects with a resolved scar at Day 7 will discontinue dosing and return to the clinic on Day 14.... Read More
Gender:
ALL
Ages:
Between 18 years and 80 years
Trial Updated:
08/22/2025
Locations: Loma Linda University Eye Institute, Loma Linda, California
Conditions: Corneal Scar
A Study of Valemetostat Tosylate in Combination With DXd ADCs in Subjects With Solid Tumors
Recruiting
This study will evaluate the safety, tolerability, and efficacy of valemetostat tosylate in combination with DXd ADC in patients with advanced solid tumors.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/22/2025
Locations: City of Hope At Orange County Lennar Foundation Cancer Center, Irvine, California
Conditions: Advanced Solid Tumor
A Study to Evaluate the Long-Term Safety and Efficacy of Povorcitinib in Participants With Moderate to Severe Hidradenitis Suppurativa
Recruiting
The purpose of this study is to evaluate long-term safety and efficacy of povorcitinib in participants with moderate to severe hidradenitis suppurativa who completed the 54 weeks of study treatment within the originating parent Phase 3 studies (INCB 54707-301 \[NCT05620823\] or INCB 54707-302 \[NCT05620836\]).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/22/2025
Locations: Investigative Site US315, Laguna Niguel, California
Conditions: Hidradenitis Suppurativa (HS)
Dinutuximab With Chemotherapy, Surgery and Stem Cell Transplantation for the Treatment of Children With Newly Diagnosed High Risk Neuroblastoma
Recruiting
This phase III trial tests how well the addition of dinutuximab to Induction chemotherapy along with standard of care surgical resection of the primary tumor, radiation, stem cell transplantation, and immunotherapy works for treating children with newly diagnosed high-risk neuroblastoma. Dinutuximab is a monoclonal antibody that binds to a molecule called GD2, which is found on the surface of neuroblastoma cells, but is not present on many healthy or normal cells in the body. When dinutuximab bi... Read More
Gender:
ALL
Ages:
30 years and below
Trial Updated:
08/22/2025
Locations: Kaiser Permanente Downey Medical Center, Downey, California
Conditions: Neuroblastoma, Ganglioneuroblastoma, Nodular
A Study of SGT-003 Gene Therapy in Duchenne Muscular Dystrophy (INSPIRE DUCHENNE)
Recruiting
This is a multicenter, open-label, non-randomized study to investigate the safety, tolerability, and efficacy of a single intravenous (IV) infusion of SGT-003 in participants with Duchenne muscular dystrophy. There will be 5 cohorts in this study. Cohort 1 will include participants 4 to \< 7 years of age. Cohort 2 will include participants 7 to \< 12 years of age. Cohort 3 will include participants 0 to \< 4 years of age. Cohort 4 will include participants 12 to \< 18 years of age. Cohort 5 will... Read More
Gender:
MALE
Ages:
Between 0 years and 17 years
Trial Updated:
08/22/2025
Locations: University of California, Los Angeles Medical Center, Los Angeles, California
Conditions: Duchenne Muscular Dystrophy
Testing the Use of Neratinib or the Combination of Neratinib and Palbociclib Targeted Treatment for HER2+ Solid Tumors (A ComboMATCH Treatment Trial)
Recruiting
This phase II ComboMATCH treatment trial compares the effect of neratinib to the combination of neratinib and palbociclib in treating patients with HER2 positive solid tumors. Neratinib and palbociclib are in a class of medications called kinase inhibitors. They work by blocking the action of an abnormal protein that signals cancer cells to multiply. This helps slow or stop the spread of tumor cells. Giving neratinib and palbociclib in combination may shrink or stabilize cancers that over-expres... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/22/2025
Locations: UC San Diego Health System - Encinitas, Encinitas, California
Conditions: Malignant Female Reproductive System Neoplasm, Malignant Solid Neoplasm, Recurrent Malignant Female Reproductive System Neoplasm, Recurrent Malignant Solid Neoplasm
A Study of First-Line Olomorasib (LY3537982) and Pembrolizumab With or Without Chemotherapy in Patients With Advanced KRAS G12C-Mutant Non-small Cell Lung Cancer
Recruiting
The purpose of this study is to assess if adding LY3537982 (olomorasib) in combination with standard of care anti-cancer drugs is more effective than standard of care in participants with untreated advanced NSCLC. NSCLC must have a change in a gene called KRAS G12C. Study participation, including follow-up, could last up to 3 years, depending on how you and your lung cancer are doing.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/22/2025
Locations: Cedars-Sinai Medical Center, Los Angeles, California
Conditions: Carcinoma, Non-Small-Cell Lung, Neoplasm Metastasis