California is currently home to 5596 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.
Trial of Nadofaragene Firadenovec vs. Observation in Participants With Intermediate Risk Non-Muscle Invasive Bladder Cancer
Recruiting
A phase 3b, Randomized, Controlled Trial of Nadofaragene Firadenovec vs. Observation in Participants with Intermediate Risk Non-Muscle Invasive Bladder Cancer (IR NMIBC)
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/30/2025
Locations: Ferring Investigational Site, Fresno, California
Conditions: Intermediate Risk Non-Muscle Invasive Bladder Cancer
Trial of Therapeutic Cancer Vaccine OSE2101 in Patients With Non-Small Cell Lung Cancer and Secondary Resistance to Immune Checkpoint Inhibitor
Recruiting
Multicenter, randomized (2:1), open-label phase 3 study in HLA-A2 positive patients with squamous and non-squamous metastatic NSCLC with ICI secondary resistance. Patients will be randomized into 2 arms (randomization 2:1): experimental Arm A with OSE2101 monotherapy or control Arm B SoC with docetaxel monotherapy. Stratification factors will be histology (squamous versus non squamous) and ECOG Performance Status (0 versus 1).
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/30/2025
Locations: Clinical Research Advisors, LLC, Beverly Hills, California
Conditions: Patients With Non-Small Cell Lung Cancer
A Study to Assess Disease Activity and Safety of Lutikizumab in Adult and Adolescent Participants With Moderate to Severe Hidradenitis Suppurativa
Recruiting
Hidradenitis suppurativa (HS) is a chronic and often painful inflammatory skin disease which includes the forming of lumps, abscesses and scars in areas of the skin such as under the breasts, under armpits, inner thighs, groin and buttocks. This study will compare lutikizumab versus placebo for the treatment of adult and adolescent participants with the signs and symptoms of moderate to severe HS . Lutikizumab is an investigational drug being developed for the treatment of HS. During Period 1 o... Read More
Gender:
ALL
Ages:
12 years and above
Trial Updated:
06/30/2025
Locations: Private Practice - Dr. Tooraj Raoof /ID# 263756, Encino, California
Conditions: Hidradenitis Suppurativa
A Study to Investigate the Efficacy and Safety of Anifrolumab Administered as Subcutaneous Injection and Added to Standard of Care Compared With Placebo Added to Standard of Care in Adult Participants With Idiopathic Inflammatory Myopathies (Polymyositis and Dermatomyositis)
Recruiting
The purpose of this multicenter, randomized, placebo-controlled and double-blind study is to evaluate the efficacy and safety of subcutaneous anifrolumab compared with placebo on the overall disease activity in participants with moderate to severe Idiopathic Inflammatory Myopathies (IIM) \[polymyositis (PM) or dermatomyositis (DM)\] while receiving standard of care (SoC) treatment.
Gender:
ALL
Ages:
Between 18 years and 75 years
Trial Updated:
06/30/2025
Locations: Research Site, Irvine, California
Conditions: Polymyositis, Dermatomyositis
A Study to Evaluate the Risk of Tumor Lysis Syndrome (TLS) in Adult Participants Receiving Oral Venetoclax in Combination With Intravenously Infused Obinutuzumab or Oral Acalabrutinib for Previously Untreated Chronic Lymphocytic Leukemia (CLL)
Recruiting
Chronic lymphocytic leukemia (CLL) is the most common leukemia (cancer of blood cells). The purpose of this study is to assess the safety of venetoclax in combination with obinutuzumab or acalabrutinib in the treatment of CLL. Adverse events and change in disease activity will be assessed. Venetoclax in combination with obinutuzumab or acalabrutinib is being investigated in the treatment of CLL. Study doctors put the participants in 1 of 4 groups, called treatment arms. Participants will receiv... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/30/2025
Locations: UCSF FRESNO/Community Cancer Institute /ID# 270874, Clovis, California
Conditions: Chronic Lymphocytic Leukemia
Avapritinib With Decitabine in Patients With SM-AHN
Recruiting
Systemic mastocytosis with an associated hematologic neoplasm (SM-AHN) is a challenging disease to treat. Targeted KIT inhibitors have been approved for this indication based on their ability to control the mastocytosis portion of the disease, but patients frequently experience progression of the concomitant myeloid malignancy (i.e. the AHN). Using a combination approach to treat both aspects of the disease has the potential to provide enhanced disease control; however, overlapping toxicity is a... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/30/2025
Locations: Stanford University Medical Center, Palo Alto, California
Conditions: Systemic Mastocytosis With an Associated Hematologic Neoplasm
Study of Ravulizumab in Immunoglobulin A Nephropathy (IgAN)
Recruiting
The primary objective of this study to evaluate efficacy of ravulizumab compared with placebo on proteinuria reduction and change in eGFR in adult participants with IgAN who are at risk of disease progression.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/30/2025
Locations: Research Site, Loma Linda, California
Conditions: Immunoglobulin A Nephropathy, IgAN
A Study to Test the Efficacy and Safety of Riliprubart Against the Usual Treatment of Intravenous Immunoglobulin (IVIg) in People With Chronic Inflammatory Demyelinating Polyneuropathy (CIDP)
Recruiting
The purpose of the study is to evaluate efficacy of riliprubart compared to IVIg in adult participants with CIDP who are receiving maintenance treatment with IVIg. The study duration will be for a maximum of 109 weeks including screening, treatment phases, and follow-up.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/30/2025
Locations: Keck School of Medicine of University of Southern California- Site Number : 8400002, Los Angeles, California
Conditions: Chronic Inflammatory Demyelinating Polyneuropathy
A Study of AAV2-GDNF in Adults With Moderate Parkinson's Disease (REGENERATE-PD)
Recruiting
The objective of this randomized, surgically controlled, double-blinded, Phase 2 study is to evaluate the safety and efficacy of AAV2-GDNF delivered to the putamen in subjects with moderate Parkinson's Disease.
Gender:
ALL
Ages:
Between 45 years and 75 years
Trial Updated:
06/30/2025
Locations: UCI Alpha Clinic (Neurology), Irvine, California
Conditions: Parkinson Disease
A Study to Assess Safety & Effectiveness of Tovinontrine in Chronic Heart Failure With Reduced Ejection Fraction (Cycle-1-REF)
Recruiting
The purpose of this study is to evaluate the safety and effectiveness of tovinontrine compared to placebo to lower NT-proBNP in patients with chronic heart failure with reduced ejection fraction.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/30/2025
Locations: Cardurion Investigative Site, Beverly Hills, California
Conditions: Heart Failure, Heart Failure With Reduced Ejection Fraction, Cardiovascular Diseases, Heart Diseases
ACP-204 in Adults With Alzheimer's Disease Psychosis
Recruiting
This is a master protocol for 3 independent, seamlessly enrolling, multicenter, randomized, double-blind, placebo-controlled, parallel-group studies in patients with ADP * Substudy 1 (Phase 2) will evaluate efficacy and dose response of ACP-204 30 and 60 mg vs placebo. This substudy will be initiated first. * Substudies 2A and 2B (both: Phase 3) will be confirmatory studies of either both doses (ACP-204 30 and 60 mg, respectively) or a single dose from Part 1 vs placebo. Substudies 2A and 2B wi... Read More
Gender:
ALL
Ages:
Between 55 years and 95 years
Trial Updated:
06/30/2025
Locations: Advanced Research Center, Inc., Anaheim, California
Conditions: Alzheimer's Disease Psychosis
A Phase 1/Phase 2 Open-label Study to Evaluate the Safety, Tolerability, and Efficacy of a Single Intravenous Administration of SAR444836 in Adult Participants With Phenylketonuria
Recruiting
This is a single group Phase 1/Phase 2, 1-arm, open-label study with SAR444836, an adeno-associated virus (AAV) vector-mediated gene transfer of human phenylalanine hydroxylase (PAH), for the treatment of adult participants with phenylketonuria (PKU) on a chronic, stable diet. The purpose of the study is to evaluate the safety and efficacy of SAR444836 in reducing phenylalanine (Phe) levels and in the elimination of a Phe restricted diet. Participants will receive a one-time intravenous (IV) ad... Read More
Gender:
ALL
Ages:
Between 18 years and 65 years
Trial Updated:
06/30/2025
Locations: University of California San Francisco - Parnassus Heights- Site Number : 8400007, San Francisco, California
Conditions: Phenylketonuria