California is currently home to 5616 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 to Test the Long-term Safety and Tolerability of Brivaracetam in Study Participants With Childhood Absence Epilepsy or Juvenile Absence Epilepsy
Recruiting
The purpose of the study is to investigate the long-term safety and tolerability of brivaracetam in study participants with childhood absence epilepsy or juvenile absence epilepsy.
Gender:
ALL
Ages:
2 years and above
Trial Updated:
08/14/2025
Locations: Ep0224 50639, Orange, California
Conditions: Childhood Absence Epilepsy, Juvenile Absence Epilepsy
A Study to Evaluate the Safety, Tolerability of INCB160058 in Participants With Myeloproliferative Neoplasms
Recruiting
This study is being conducted to assess the Safety, Tolerability, and Pharmacokinetics of INCB160058 in Participants With Myeloproliferative Neoplasms.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/14/2025
Locations: Stanford University, Palo Alto, California
Conditions: Myeloproliferative Neoplasms
A Study of Sacituzumab Tirumotecan (MK-2870) as a Single Agent and in Combination With Pembrolizumab (MK-3475) Versus Treatment of Physician's Choice in Participants With HR+/HER2- Unresectable Locally Advanced or Metastatic Breast Cancer (MK-2870-010)
Recruiting
The purpose of this study is to compare sacituzumab tirumotecan as a single agent, and in combination with pembrolizumab, versus Treatment of Physician's Choice (TPC) in participants with hormone receptor positive/human epidermal growth factor receptor-2 negative (HR+/HER2-) unresectable locally advanced, or metastatic, breast cancer. The primary hypotheses are that sacituzumab tirumotecan as a single agent and sacituzumab tirumotecan plus pembrolizumab are superior to TPC with respect to progr... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/14/2025
Locations: Providence Medical Foundation-Oncology ( Site 0020), Fullerton, California
Conditions: Breast Neoplasms
Evaluating the Efficacy and Safety of PT027 Compared With PT007 Administered As Needed in Participants 12 to < 18 Years of Age With Asthma
Recruiting
The purpose of this study is to compare the effect of budesonide/albuterol metered-dose inhaler (BDA MDI) with albuterol sulfate metered-dose inhaler (AS MDI), both administered as needed, on the annualized rate of severe asthma exacerbations in adolescents with a documented clinical diagnosis of asthma and at least one severe exacerbation in the prior year.
Gender:
ALL
Ages:
Between 12 years and 17 years
Trial Updated:
08/14/2025
Locations: Research Site, Long Beach, California
Conditions: Asthma
Sacituzumab Tirumotecan (MK-2870) Versus Pemetrexed and Carboplatin Combination Therapy in Participants With Epidermal Growth Factor (EGFR)-Mutated, Advanced Nonsquamous Non-small Cell Lung Cancer (NSCLC) Who Have Progressed on Prior EGFR Tyrosine Kinase Inhibitors (MK-2870-009)
Recruiting
The purpose of this study is to evaluate sacituzumab tirumotecan versus pemetrexed in combination with carboplatin for the treatment of epidermal growth factor receptor (EGFR)-mutated advanced non-squamous non-small cell lung cancer (NSCLC). Participants in this study have NSCLC that has continued to progress on prior treatment with EGFR tyrosine kinase inhibitors (TKIs). The primary hypotheses of this study are that sacituzumab tirumotecan is better than platinum-based doublet chemotherapy (pe... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/14/2025
Locations: Kaiser Permanente - Oakland ( Site 0054), Oakland, California
Conditions: Non-small Cell Lung Cancer (NSCLC)
A Safety Study of PF-08046044/SGN-35C in Adults With Advanced Cancers
Recruiting
This clinical trial is studying lymphoma. Lymphoma is a cancer that starts in the blood cells that fight infection. There are several types of lymphoma. This study will enroll people who have classical Hodgkin lymphoma (cHL), peripheral T cell lymphoma (PTCL), or diffuse large B cell lymphoma (DLBCL). This clinical trial uses a drug called PF-08046044/SGN-35C . The study drug is in testing and has not been approved for sale. This is the first time SGN -35C will be used in people. This study wi... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/14/2025
Locations: City of Hope (City of Hope National Medical Center, City Of Hope Medical Center), Duarte, California
Conditions: Hodgkin Disease, Lymphoma, T-Cell, Peripheral, Lymphoma, Large B-Cell, Diffuse, Lymphoma, Large-Cell, Anaplastic
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:
08/14/2025
Locations: Investigative Site US315, Laguna Niguel, California
Conditions: Hidradenitis Suppurativa (HS)
A Study of Opevesostat (MK-5684) Versus Alternative Next-generation Hormonal Agent (NHA) in Metastatic Castration-resistant Prostate Cancer (mCRPC) Post One NHA (MK-5684-004)
Recruiting
The purpose of this study is to assess the efficacy and safety of opevesostat plus hormone replacement therapy (HRT) compared to alternative abiraterone acetate or enzalutamide in participants with Metastatic Castration-resistant Prostate Cancer (mCRPC) previously treated with one next-generation hormonal agent (NHA). The primary study hypotheses are that opevesostat is superior to alternative abiraterone acetate or enzalutamide with respect to radiographic progression free survival (rPFS) per P... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/14/2025
Locations: UCLA Hematology/Oncology - Santa Monica ( Site 0044), Los Angeles, California
Conditions: Metastatic Castration-resistant Prostate Cancer (mCRPC), Prostatic Neoplasms
Sacituzumab Tirumotecan (MK-2870) in Post Platinum and Post Immunotherapy Endometrial Cancer (MK-2870-005)
Recruiting
Researchers are looking for new ways to treat people with endometrial cancer (EC) who have previously received treatment with platinum based therapy (a type of chemotherapy) and immunotherapy. Immunotherapy is a treatment that helps the immune system fight cancer. This clinical study will compare sacituzumab tirumotecan to chemotherapy. The goal of the study is to learn if people who receive sacituzumab tirumotecan live longer overall and without the cancer getting worse compared to people who r... Read More
Gender:
FEMALE
Ages:
18 years and above
Trial Updated:
08/14/2025
Locations: UCLA Hematology/Oncology - Westwood (Building 100)-Department of OBGYN, Division of Gynecologic Onc ( Site 4131), Los Angeles, California
Conditions: Endometrial Cancer
A Study of SGN-CEACAM5C in Adults With Advanced Solid Tumors
Recruiting
This clinical trial is studying advanced solid tumors. Solid tumors are cancers that start in a part of your body like your lungs or liver instead of your blood. Once tumors have grown bigger in one place but haven't spread, they're called locally advanced. If your cancer has spread to other parts of your body, it's called metastatic. When a cancer has gotten so big it can't easily be removed or has spread to other parts of the body, it is called unresectable. These types of cancer are harder to... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/14/2025
Locations: City of Hope, Duarte, California
Conditions: Colorectal Neoplasms, Carcinoma, Non-Small-Cell Lung, Stomach Neoplasms, Pancreatic Ductal Adenocarcinoma, Gastroesophageal Junction Adenocarcinoma, Small Cell Lung Carcinoma
Testing the Addition of Anti-cancer Drug, ZEN003694, to the Usual Chemotherapy Treatment, Cetuximab Plus Encorafenib, for Colorectal Cancer
Recruiting
This phase I trial tests the safety, best dose, and effectiveness of ZEN003694 in combination with cetuximab and encorafenib in treating patients with colorectal cancer that has not responded to previous treatment (refractory), that has come back after a period of improvement (relapsed), and that has spread from where it first started (primary site) to other places in the body (metastatic). ZEN003694 is a protein inhibitor that binds to BET proteins. When ZEN003694 binds to BET proteins, it disr... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/14/2025
Locations: Los Angeles General Medical Center, Los Angeles, California
Conditions: Metastatic Colorectal Adenocarcinoma, Refractory Colorectal Adenocarcinoma, Stage IV Colorectal Cancer AJCC v8, Recurrent Colorectal Adenocarcinoma
A Study Evaluating Atezolizumab, With or Without Bevacizumab, in Participants With Unresectable Hepatocellular Carcinoma and Child-Pugh B7 and B8 Cirrhosis
Recruiting
The purpose of this study is to assess the safety of atezolizumab and bevacizumab, or atezolizumab alone, as first-line treatment in participants with unresectable, locally advanced or metastatic hepatocellular carcinoma (HCC) with Child-Pugh B7 or B8 cirrhosis.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
08/14/2025
Locations: UC San Diego Moores Cancer Center, La Jolla, California
Conditions: Hepatocellular Carcinoma