California is currently home to 5594 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.
Efficacy and Safety Study of Frexalimab (SAR441344) in Adults With Nonrelapsing Secondary Progressive Multiple Sclerosis
Recruiting
The purpose of this randomized, double-blind, placebo-controlled, parallel group study is to determine the efficacy of frexalimab in delaying the disability progression and the safety up to 36 months double-blind administration of study intervention compared to placebo in male and female participants with nrSPMS (aged 18 to 60 years at the time of enrollment). People diagnosed with nrSPMS are eligible for enrollment as long as they meet all the inclusion criteria and none of the exclusion criter... Read More
Gender:
ALL
Ages:
Between 18 years and 60 years
Trial Updated:
07/01/2025
Locations: Sutter East Bay Medical Foundation - Berkeley- Site Number : 8400134, Berkeley, California
Conditions: Multiple Sclerosis
A Study of Avutometinib (VS-6766) + Defactinib (VS-6063) in Recurrent Low-Grade Serous Ovarian Cancer
Recruiting
This study will assess the safety and efficacy of avutometinib (VS-6766) in combination with defactinib versus Investigator's choice of treatments (ICT) in subjects with recurrent LGSOC who have progressed on a prior platinum-based therapy.
Gender:
FEMALE
Ages:
18 years and above
Trial Updated:
07/01/2025
Locations: UCLA Health, Los Angeles, California
Conditions: Low Grade Serous Ovarian Cancer
Adding an Immunotherapy Drug, MEDI4736 (Durvalumab), to the Usual Chemotherapy Treatment (Paclitaxel, Cyclophosphamide, and Doxorubicin) for Stage II-III Breast Cancer
Recruiting
This phase III trial compares the addition of an immunotherapy drug (durvalumab) to usual chemotherapy versus usual chemotherapy alone in treating patients with MammaPrint High 2 Risk (MP2) stage II-III hormone receptor positive, HER2 negative breast cancer. Immunotherapy with monoclonal antibodies, such as durvalumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Chemotherapy drugs, such as paclitaxel, doxorubicin, and... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/01/2025
Locations: Sutter Auburn Faith Hospital, Auburn, California
Conditions: Anatomic Stage II Breast Cancer AJCC v8, Anatomic Stage III Breast Cancer AJCC v8, HER2-Negative Breast Carcinoma, Hormone Receptor-Positive Breast Carcinoma
Testing the Combination of Anti-cancer Drugs Mosunetuzumab, Polatuzumab Vedotin, and Lenalidomide for the Treatment of Relapsed/Refractory Diffuse Large B-Cell Lymphoma
Recruiting
This phase I trial studies the side effects and best dose of mosunetuzumab when given together with polatuzumab vedotin and lenalidomide in treating patients with diffuse large B-cell lymphoma (DLBCL) that has come back after a period of improvement (relapsed) or that has not responded to previous treatment (refractory). Mosunetuzumab and polatuzumab vedotin are monoclonal antibodies that may interfere with the ability of cancer cells to grow and spread. Polatuzumab, linked to a toxic agent call... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/01/2025
Locations: City of Hope Comprehensive Cancer Center LAO, Duarte, California
Conditions: Diffuse Large B-Cell Lymphoma, Not Otherwise Specified, High Grade B-Cell Lymphoma, Transformed Indolent B-Cell Non-Hodgkin Lymphoma to Diffuse Large B-Cell Lymphoma
Testing the Role of DNA Released From Tumor Cells Into the Blood in Guiding the Use of Immunotherapy After Surgical Removal of the Bladder, Kidney, Ureter, and Urethra for Urothelial Cancer Treatment, MODERN Study
Recruiting
This phase II/III trial examines whether patients who have undergone surgical removal of bladder, kidney, ureter or urethra, but require an additional treatment called immunotherapy to help prevent their urinary tract (urothelial) cancer from coming back, can be identified by a blood test. Many types of tumors tend to lose cells or release different types of cellular products including their DNA which is referred to as circulating tumor DNA (ctDNA) into the bloodstream before changes can be seen... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/01/2025
Locations: Kaiser Permanente-Anaheim, Anaheim, California
Conditions: Muscle Invasive Bladder Urothelial Carcinoma, Stage II Bladder Urothelial Carcinoma AJCC v6 and v7, Stage III Bladder Urothelial Carcinoma AJCC v6 and v7, Stage IV Bladder Urothelial Carcinoma AJCC v7, Muscle Invasive Renal Pelvis Urothelial Carcinoma, Muscle Invasive Ureter Urothelial Carcinoma, Muscle Invasive Urethral Urothelial Carcinoma
Open-Label Extension Study to Assess the Long-Term Safety and Tolerability of KarXT in Subjects With Psychosis Associated With Alzheimer's Disease (ADEPT-3)
Recruiting
This is a Phase 3 global, multicenter, 52-week, open-label extension (OLE) rollover study for subjects completing study CN012-0026, CN012-0027 or CN012-0056. Subjects (randomized or non-randomized) who complete the 38-week CN012-0026 study, 14-week CN012-0027 study or 14-week CN012-0056 study will be eligible to enroll in CN012-0028. The primary objective of the study is to assess the long-term safety and tolerability of KarXT in subjects with psychosis associated with Alzheimer's Disease.
Gender:
ALL
Ages:
Between 55 years and 90 years
Trial Updated:
07/01/2025
Locations: Advanced Research Center, Inc., Anaheim, California
Conditions: Psychosis Associated With Alzheimer's Disease
Testing the Addition of an Anti-cancer Drug, SNDX-5613, to the Standard Chemotherapy Treatment (Daunorubicin and Cytarabine) for Newly Diagnosed Patients With Acute Myeloid Leukemia That Has Changes in NPM1 or MLL/KMT2A Gene
Recruiting
This phase Ib trial tests the safety, side effects, and best dose of SNDX-5613 when given in combination with the standard chemotherapy treatment (daunorubicin and cytarabine) in treating patients with newly diagnosed acute myeloid leukemia that has changes in the NPM1 gene or MLL/KMT2A gene. SNDX-5613 blocks signals passed from one molecule to another inside cancer cells that are needed for cancer cell survival. Drugs used in chemotherapy, such as daunorubicin and cytarabine, work in different... Read More
Gender:
ALL
Ages:
Between 18 years and 75 years
Trial Updated:
07/01/2025
Locations: UC Irvine Health/Chao Family Comprehensive Cancer Center, Orange, California
Conditions: Acute Myeloid Leukemia With KMT2A Rearrangement, Acute Myeloid Leukemia With NPM1 Mutation
Comparing the Effectiveness of the Immunotherapy Agents Rituximab or Mosunetuzumab in Patients With Nodular Lymphocyte-Predominant Hodgkin Lymphoma
Recruiting
This phase II trial compares mosunetuzumab to the usual treatment (rituximab) for improving survival in patients with nodular lymphocyte-predominant Hodgkin lymphoma (NLPHL). Rituximab and mosunetuzumab are monoclonal antibodies. They bind to a protein called CD20, which is found on B cells (a type of white blood cell) and some types of cancer cells. This may help the immune system kill cancer cells. Mosunetuzumab may be more effective at extending survival in patients with NLPHL than the usual... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/01/2025
Locations: City of Hope Comprehensive Cancer Center, Duarte, California
Conditions: Nodular Lymphocyte Predominant B-Cell Lymphoma, Recurrent Nodular Lymphocyte Predominant B-Cell Lymphoma, Refractory Nodular Lymphocyte Predominant B-Cell Lymphoma
The Rhythm Evaluation for AntiCoagulaTion With Continuous Monitoring of Atrial Fibrillation
Recruiting
REACT-AF is a multicenter prospective, randomized, open-label, blinded endpoint (PROBE design), controlled trial comparing the current Standard Of Care (SOC) of continuous Direct Oral Anticoagulation (DOAC) use versus time-delimited (1 month) DOAC guided by an AF-sensing Smart Watch (AFSW) in participants with a history of paroxysmal or persistent Atrial Fibrillation (AF) and low-to-moderate stroke risk.
Gender:
ALL
Ages:
Between 22 years and 85 years
Trial Updated:
07/01/2025
Locations: University of Southern California - Keck School of Medicine, Los Angeles, California
Conditions: Atrial Fibrillation
A Study of Camizestrant in ER+/HER2- Early Breast Cancer After at Least 2 Years of Standard Adjuvant Endocrine Therapy
Recruiting
This is a Phase III open-label study to assess if camizestrant improves outcomes compared to standard endocrine therapy in patients with ER+/HER2 - early breast cancer with intermediate or high risk for disease recurrence who completed definitive locoregional therapy (with or without chemotherapy) and standard adjuvant endocrine therapy (ET) for at least 2 years and up to 5 years. The planned duration of treatment in either arm of the study is 60 months.
Gender:
ALL
Ages:
Between 18 years and 130 years
Trial Updated:
07/01/2025
Locations: Research Site, Anaheim, California
Conditions: Breast Cancer, Early Breast Cancer
Testing Radiation and HER2-targeted Therapy Versus HER2-targeted Therapy Alone for Low-risk HER2-positive Breast Cancer
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:
07/01/2025
Locations: Kaiser Permanente-Deer Valley Medical Center, Antioch, California
Conditions: HER2-positive Breast Cancer
A Clinical Trial of Four Medicines (Elranatamab Plus Carfilzomib and Dexamethasone or Maplirpacept) in People With Relapsed Refractory Multiple Myeloma
Recruiting
The main purpose of the study is to evaluate the safety and tolerability of the combination of elranatamab and carfilzomib and dexamethasone or elranatamab and maplirpacept. There are 2 parts to this study. Part 1 will evaluate the safety and tolerability of elranatamab when given in combination with carfilzomib plus dexamethasone. Part 2 has 2 arms. The first will evaluate the safety and tolerability of elranatamab when given in combination with maplirpacept. The second will identify the optim... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
07/01/2025
Locations: Beverly Hills Cancer Center, Beverly Hills, California
Conditions: Multiple Myeloma