The state of California currently has 40 active clinical trials seeking participants for Parkinson's Disease research studies. These trials are conducted in various cities, including Los Angeles, San Francisco, San Diego and Sacramento.
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:
06/23/2025
Locations: UCI Alpha Clinic (Neurology), Irvine, California +4 locations
Conditions: Parkinson Disease
A Non-Interventional Pilot Study to Explore the Role of Gut Flora in Disease
Recruiting
This study seeks to correlate microbiome sequencing data with information provided by patients and their medical records.
Gender:
ALL
Ages:
12 years and above
Trial Updated:
06/23/2025
Locations: Sabine Hazan, Ventura, California
Conditions: Gut Microbiome, Gastrointestinal Microbiome, Autism, Autism Spectrum Disorder, Autism Spectrum Disorder High-Functioning, Alzheimer Disease, Alzheimer Dementia (AD), Alzheimer Dementia, Alzheimer Disease (AD), Crohn, Crohn Colitis, Crohn Disease (CD), Crohn Disease Colon, Myalgic Encephalomyelitis, ME/CFS, Myalgic Encephalomyelitis (ME), Myalgic Encephalomyelitis/Chronic Fatigue Syndrome, Psoriasis, Psoriasis Annularis, Psoriasis Chronic, Chronic Urinary Tract Infection, Ulcerative Colitis (Disorder), Ulcerative Colitis (UC), Ulcerative Colitis Acute, Ulcerative Colitis Chronic, Multiple Sclerosis, Multiple Sclerosis (MS) - Relapsing-remitting, Multiple Sclerosis (MS) Primary Progressive, Constipation Chronic Idiopathic, Constipation, Celiac, Celiac Disease, Celiac Sprue, Lyme Arthritis, Lyme Borreliosis, Nervous System, Lyme Disease, Chronic, Cholesterol, Cholesterol Level, High, Cancer, Colon Cancer, Amyotrophic Lateral Sclerosis (ALS), Amyotrophic Lateral Sclerosis, Rheumatoid Arthritis (RA), Rheumatoid Arthritis - Rheumatism, Chronic Fatigue Syndrome (CFS), PARKINSON DISEASE (Disorder), Parkinson Disease, Parkinson Disease (PD), Depression, Major Depressive Disorder (MDD), Depression Disorder, Depression in Adults, Anxiety, Anxiety Disorder Generalized, Obsessive Compulsive Disorder (OCD), Obsessive Compulsive Disorder OCD, Obsessive - Compulsive Disorder, Bipolar, Bipolar 1 Disorder, Bipolar Disorder (BD), Bipolar Disorder I and II, Bipolar and Related Disorders, Migraine, Migraine Disorder, Diabetes (DM), Diabetes, Lupus, Lupus Erythematosus, Epidermolysis Bullosa (EB), Mesothelioma, Mesothelioma Malignant, IBS (Irritable Bowel Syndrome), Irritable Bowel, IBS - Irritable Bowel Syndrome, Irritable Bowel Syndrome (IBS), Eczema, Eczema Atopic Dermatitis, Acne, Myasthaenia Gravis, Gout
Exercise for Cognitive Excellence in Parkinson's Disease
Recruiting
This study will evaluate the safety and feasibility of a home-based, virtually-supervised, combined high intensity endurance and resistance training program in people with Parkinson's disease. It will also evaluate the effects of exercise on cognition and underlying exercise-related biological markers (biomarkers).
Gender:
ALL
Ages:
Between 40 years and 80 years
Trial Updated:
06/20/2025
Locations: University of California San Francisco, San Francisco, California
Conditions: Parkinson Disease
Pimavanserin vs. Quetiapine for Treatment of Parkinson's Psychosis
Recruiting
Patients with Parkinson's disease (PD) sometimes experience symptoms affecting their movement, such as slowness, tremor, stiffness, and balance or walking problems. Many patients also have other symptoms not related to movement, called non-motor symptoms, which may affect one's mood or emotions, memory or thinking, or cause one to see or hear things that aren't real (hallucinations) or believe things that aren't true (delusions). Hallucinations or delusions, together called psychosis, occur in u... Read More
Gender:
ALL
Ages:
40 years and above
Trial Updated:
06/12/2025
Locations: VA Loma Linda Healthcare System, Loma Linda, CA, Loma Linda, California +3 locations
Conditions: Parkinson's Disease Psychosis
Registry of Deep Brain Stimulation With the VERCISE™ System: Vercise DBS Registry
Recruiting
The purpose of this registry is to compile characteristics of world-wide outcomes for the use of Boston Scientific's commercially available Vercise DBS System in the treatment of Parkinson's disease. The utilization of Image Guided Programming (IGP), and other commercially available programming features, used as planning tools for the programming of patients with Boston Scientific's Vercise DBS System are also evaluated. Additionally, the utilization of the DBS Illumina 3D feature that may be... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/10/2025
Locations: Neurology and Pain Specialty, Aliso Viejo, California
Conditions: Parkinson's Disease
Deep Brain Stimulation (DBS) Retrospective Outcomes Study
Recruiting
The primary objective of this study is to characterize real-world clinical outcomes of Deep Brain Stimulation (DBS) using retrospective review of de-identified patient records.
Gender:
ALL
Ages:
All
Trial Updated:
06/10/2025
Locations: University of California, San Francisco, San Francisco, California
Conditions: Parkinson Disease, Essential Tremor, Dystonia
A Phase 2 Study of NEU-411 in Companion Diagnostic-Positive Participants With Early Parkinson's Disease
Recruiting
The goal of this Phase 2 clinical trial is to investigate the efficacy and safety of NEU-411 in men and women aged 50-80 years with early Parkinson's Disease (PD) who have predicted elevations in the activity of the "leucine-rich repeat kinase 2" ("LRRK2" for short) pathway based on their genetic profile. A DNA test will be used to identify the "LRRK2-driven" population with predicted elevation in the LRRK2 pathway. Participants will: • Take NEU-411 or placebo every day for 52 weeks
Gender:
ALL
Ages:
Between 50 years and 80 years
Trial Updated:
06/10/2025
Locations: Neuro-Pain Medical Center, Fresno, California +4 locations
Conditions: Parkinson Disease, Parkinson, Idiopathic Parkinson Disease, Early Parkinson Disease (Early PD), Parkinson Disease, Idiopathic
A Phase 2a Multicenter Clinical Trial of TB006 in Participants With Parkinson's Disease
Recruiting
The primary objectives of this study are to assess the efficacy of TB006 in improving motor function and to assess the safety of TB006 in participants with Parkinson's Disease (PD).
Gender:
ALL
Ages:
Between 50 years and 80 years
Trial Updated:
06/10/2025
Locations: Parkinson's Research Centers of America - Orange County, Aliso Viejo, California
Conditions: Parkinson's Disease (PD)
Evaluation of Neurocognitive Changes in Parkinson's Disease After Low Frequency Burst Stimulation
Recruiting
This study aims to determine whether direct brain stimulation of specific regions and ranges improves cognition in people with Parkinsons Disease (PD) who already have a deep brain stimulator implanted. Research activities consist of 32 subjects undergoing stimulation changes to their device and being administered neurocognitive tests to evaluate the changes. An fMRI scan will also be done at baseline and at weeks 15 and 27. All subjects will undergo the stimulation changes in a randomized doub... Read More
Gender:
ALL
Ages:
18 years and above
Trial Updated:
06/05/2025
Locations: University of Southern California Keck School of Medicine, Los Angeles, California
Conditions: Parkinson Disease
A Study of LY4006896 in Healthy Participants and Participants With Parkinson's Disease
Recruiting
The purpose of this study is to generate evidence of the safety, tolerability, and pharmacokinetics/pharmacodynamics of IV LY4006896 compared with placebo in healthy participants and participants with Parkinson's disease.
Gender:
ALL
Ages:
Between 40 years and 85 years
Trial Updated:
06/03/2025
Locations: Collaborative Neuroscience Network - CNS, Los Alamitos, California +1 locations
Conditions: Parkinson Disease
Safety and Pharmacodynamic Effects of BIIB122 in Participants With LRRK2-Associated Parkinson's Disease (LRRK2-PD)
Recruiting
This Phase 2a, multicenter, randomized, 12-week double-blind, placebo-controlled, parallel-group study, followed by an OLE, is designed to evaluate the safety, tolerability, and pharmacodynamic effects of BIIB122 in participants with LRRK2-PD. LRRK2-PD is defined as Parkinson's Disease (PD) in individuals who are heterozygous or homozygous carriers of a pathogenic LRRK2 variant that increases LRRK2 kinase activity.
Gender:
ALL
Ages:
30 years and above
Trial Updated:
06/02/2025
Locations: University of California San Francisco, San Francisco, California
Conditions: Parkinson Disease
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