California is currently home to 5587 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 Assess the Efficacy, Safety, and Pharmacokinetics of Debio 4326 in Pediatric Participants With Central Precocious Puberty (LIBELULA™ Clinical Trial)
Recruiting
The primary objective of this study is to evaluate the efficacy of Debio 4326 in suppressing serum luteinizing hormone (LH) to prepubertal levels 52 weeks after the first Debio 4326 injection in pediatric participants with central precocious puberty (CPP).
Gender:
ALL
Ages:
Between 5 years and 8 years
Trial Updated:
05/29/2025
Locations: Rady Children's Hospital - San Diego, San Diego, California
Conditions: Central Precocious Puberty
A Study to Evaluate Safety, Tolerability, and Pharmacokinetics of Fenfluramine (Hydrochloride) in Infants 1 Year to Less Than 2 Years of Age With Dravet Syndrome
Recruiting
The primary purpose of this study is evaluate the safety and tolerability of fenfluramine hydrochloride (HCl) 0.2 to 0.8 mg/kg/day in infants 1 year to less than 2 years of age with Dravet syndrome.
Gender:
ALL
Ages:
Between 1 year and 23 months
Trial Updated:
05/29/2025
Locations: Ep0213 106, Orange, California
Conditions: Dravet Syndrome
IMC-F106C Regimen Versus Nivolumab Regimens in Previously Untreated Advanced Melanoma (PRISM-MEL-301)
Recruiting
This is a phase 3, randomized, controlled study of brenetafusp (IMC-F106C) plus nivolumab compared to standard nivolumab regimens in HLA-A\*02:01-positive participants with previously untreated advanced melanoma.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/29/2025
Locations: University of California - San Diego, La Jolla, California
Conditions: Advanced Melanoma
BradycArdia paCemaKer With AV Interval Modulation for Blood prEssure treAtmenT
Recruiting
A prospective, multinational, randomized, double-blind, clinical trial evaluating the safety and effectiveness of a novel atrioventricular interval modulation (AVIM) algorithm downloaded into a dual-chamber Medtronic Astra/Azure pacemaker.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/29/2025
Locations: Stanford, Redwood City, California
Conditions: Hypertension, Hypertension, Systolic, Hypertension, Essential
A Study of Eltrekibart (LY3041658) in Adult Participants With Moderate to Severe Hidradenitis Suppurativa
Recruiting
This study aims to find the appropriately safe and effective dose and dosing frequency for eltrekibart in adults with moderate-to-severe hidradenitis suppurativa (HS) for further clinical development. The study will last approximately 62 weeks and may include up to 31 visits.
Gender:
ALL
Ages:
Between 18 years and 75 years
Trial Updated:
05/29/2025
Locations: First OC Dermatology Research Inc, Fountain Valley, California
Conditions: Hidradenitis Suppurativa
A Study to Find Out if ASP5354 Can Clearly Help Show the Ureter During Surgery in People With or Without Kidney Disease
Recruiting
The ureter is the tube that carries urine from the kidneys to the bladder. It is difficult for surgeons to see the ureter during abdominal surgery. This could lead to injuring the ureter which, although rare, could be serious. This study is about a potential new medical dye, called ASP5354. This dye is injected into the person at the start of surgery and is detected in the ureter. This is done by an imaging machine which has an option called near infrared fluorescence, or NIR-F. Together they s... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/29/2025
Locations: Hoag Memorial Hospital Presbyterian, Newport Beach, California
Conditions: Intraoperative Ureter Visualization, Abdominolpelvic Surgery
Evaluate BL-B01D1 in Patients With Metastatic or Unresectable Non-Small Cell Lung Cancer (NSCLC) and Other Solid Tumors
Recruiting
The objective of this study is to evaluate the safety, tolerability, and efficacy of BL-B01D1 in patients with Metastatic or Unresectable Non-Small Cell Lung Cancer (NSCLC) and Other Solid Tumors.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/29/2025
Locations: Beverly Hills Cancer Center, Beverly Hills, California
Conditions: Non Small Cell Lung Cancer, Lung Cancer, Breast Cancer, Esophageal Cancer, Small Cell Lung Cancer, Nasopharyngeal Cancer, Head and Neck Squamous Cell Carcinoma
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:
05/29/2025
Locations: University of California San Francisco - Parnassus Heights- Site Number : 8400007, San Francisco, California
Conditions: Phenylketonuria
Combined STN and NBM Deep Brain Stimulation for Mild Cognitive Impairment in Parkinson's Disease
Recruiting
The goal of this clinical trial is to evaluate the safety and tolerability of a novel deep brain stimulation (DBS) of the Subthalamic Nucleus (STN) and Nucleus Basalis of Meynert (NBM) to treat cognitive and cognitive-motor symptoms in individuals with Parkinson's disease. The main question it aims to answer is: Is a combined deep brain stimulation approach targeting the STN and NBM with four DBS leads safe and tolerable for cognitive and cognitive-motor symptoms in individuals with Parkinson's... Read More
Gender:
ALL
Ages:
Between 21 years and 80 years
Trial Updated:
05/29/2025
Locations: Stanford Neuroscience Health Center, Stanford, California
Conditions: Parkinson's Disease, Mild Cognitive Impairment
Study to Evaluate Safety, Efficacy and Pharmacokinetics (PK) of a Modified Regimen of Ublituximab
Recruiting
The primary purpose of this phase 3b study is to assess the efficacy of a modified regimen of ublituximab as measured by T1 Gadolinium (Gd)-enhancing lesions and pharmacokinetics in participants with Relapsing Multiple Sclerosis (RMS). The study consists of 2 parts: Part A is single-armed and open-label and Part B is randomized, double-blind, placebo-controlled.
Gender:
ALL
Ages:
Between 18 years and 65 years
Trial Updated:
05/29/2025
Locations: TG Therapeutics Investigational Trial Site, Orange, California
Conditions: Relapsing Multiple Sclerosis
A Study of Zigakibart in Adults With IgA Nephropathy
Recruiting
Safety and Efficacy of BION-1301 in Adults with IgA Nephropathy
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/29/2025
Locations: Kidney Disease Medical Group Inc-1500 S Central Ave, Glendale, California
Conditions: IgA Nephropathy, Immunoglobulin A Nephropathy
Study of Novel Immunomodulators as Monotherapy and in Combination With Anticancer Agents in Participants With Advanced Hepatobiliary Cancer
Recruiting
GEMINI-Hepatobiliary study will assess the efficacy, safety and tolerability of novel immunomodulators alone and in combination with other anticancer drugs in participants with specified advanced solid tumors.
Gender:
ALL
Ages:
18 years and above
Trial Updated:
05/29/2025
Locations: Research Site, Costa Mesa, California
Conditions: Hepatocellular Carcinoma, Biliary Tract Cancer