Clinical trials · Riverside–San Bernardino, CA
Parkinson’s disease clinical trials in Riverside–San Bernardino
We’re tracking 26 recruiting parkinson’s disease studies with a site in or near Riverside–San Bernardino — including Phase 1, Phase 2, Phase 2/Phase 3, Phase 3 and Phase 4 studies, each written for real people, not researchers.
Recruiting studies near Riverside–San Bernardino
- NCT04373317RecruitingPhase 4
Comparing two medicines for hallucinations in Parkinson's disease
This study compares two drugs, pimavanserin and quetiapine, to see which works better for hallucinations or delusions caused by Parkinson's disease. The goal is to help patients manage these symptoms more effectively.
Loma Linda, CaliforniaAges 40 years+ - NCT06285643RecruitingPhase 2
Gene therapy for moderate Parkinson's disease
This trial tests a gene therapy (AAV2-GDNF) to see if it can slow or improve symptoms of Parkinson's disease. It is for people who have had moderate Parkinson's for 4 to 10 years and still respond to levodopa therapy.
Loma Linda, CaliforniaAges 45–75 - NCT06944522RecruitingPhase 3
Cell therapy for Parkinson's symptoms
This study tests a new cell therapy called bemdaneprocel to see if it can reduce Parkinson's symptoms and “off” time. The treatment involves transplanting special cells into the brain to help replace lost dopamine-producing cells.
Orange, CaliforniaAges 45–75 - NCT06344026Enrolling by invitationPhase 1
A cell therapy trial for Parkinson's disease
This trial tests a new treatment made from your own cells to replace damaged brain cells, aiming to improve movement and reduce symptoms. It's for people who have had Parkinson's for at least 4 years and respond well to levodopa.
Orange, CaliforniaAges 40–75 - NCT05897957Enrolling by invitation
Follow-up study for people who received BRT-DA01
This study is for people with Parkinson’s disease who previously took part in an earlier BRT-DA01 trial and finished it (or stopped it). It mainly checks how participants do over time after that earlier treatment.
Orange, CaliforniaAges 50–78 - NCT06680830RecruitingPhase 2
Testing NEU-411 for early Parkinson's with LRRK2 gene change
This trial tests an experimental drug called NEU-411 for people with early Parkinson's disease who have a specific genetic change (LRRK2). It aims to see if the drug can slow the disease progression.
Murrieta, CaliforniaAges 40–80 - NCT07174310RecruitingPhase 3
Prasinezumab for early Parkinson's disease
This study tests a new medication called prasinezumab, given through a vein (IV), to see if it can slow the progression of early-stage Parkinson's disease. It is for people who are on only one Parkinson's medication and have not yet developed motor complications.
Fullerton, CaliforniaAges 50–85 - NCT07219927Recruiting
Patient experiences with pump-delivered Parkinson's drug
This study looks at real-world experiences of people with Parkinson's who are using ONAPGO, a medication given continuously under the skin through a pump. The goal is to understand how this treatment works in daily life.
Irvine, CaliforniaAges 18 years+ - NCT05779475Enrolling by invitation
Study of people with moderate Parkinson’s disease
This is an observational study, meaning it doesn’t test a new drug—researchers mainly follow people to better understand moderate Parkinson’s disease and who may be good candidates for future cell therapy. If you have moderate symptoms that aren’t well controlled with tablets, this study may help inform better future treatments.
Irvine, CaliforniaAges 50–68 - NCT06765668RecruitingPhase 4
Study of CREXONT for Parkinson's with wearing-off episodes
This study tests how well CREXONT, an extended-release form of carbidopa-levodopa, controls symptoms in people with Parkinson's who experience predictable 'off' periods when their regular medication wears off. The goal is to see if it can reduce the daily hours of poor mobility.
Aliso Viejo, CaliforniaAges 18 years+ - NCT02071134Recruiting
Registry study for Vercise deep brain stimulation patients
This study keeps a record of people who receive the Vercise deep brain stimulation system. It helps doctors learn how the treatment is used in real-world care and how patients do over time.
Aliso Viejo, CaliforniaAges 18 years+ - NCT07330258Recruiting
Observing Parkinson's over time in people still having movement symptoms
This study follows people with Parkinson's disease who still have movement symptoms despite taking medication. It aims to understand how the disease changes over time, which could help improve future treatments.
Fountain Valley, CaliforniaAges 45–75 - NCT07005180RecruitingPhase 2
Carbon monoxide gas for Parkinson's disease
This trial tests if a low dose of carbon monoxide (HBI-002) is safe and helpful for people with Parkinson's disease. It requires specific health criteria and stable Parkinson's medication.
Fountain Valley, CaliforniaAges 40–80 - NCT07284784RecruitingPhase 2/Phase 3
Buntanetap for Parkinson's disease study
This trial tests an investigational drug called buntanetap in people with Parkinson's disease. It aims to see if the drug can improve symptoms. There are two groups: those who've taken buntanetap before (Cohort 1) and those with a deep brain stimulator (DBS) implant for at least a year (Cohort 2).
Fountain Valley, CaliforniaAges 40–85 - NCT06809400RecruitingPhase 1
Study of LY4006896 in healthy people and those with Parkinson's
This study tests an injectable antibody called LY4006896, first in healthy volunteers and then in people with Parkinson's disease. It aims to see if the drug is safe and how it works in the body.
Los Alamitos, CaliforniaAges 30–85 - NCT07432958RecruitingPhase 2
Study of AP-472 with levodopa for Parkinson's motor fluctuations
This trial tests an experimental drug called AP-472, taken alongside your regular Parkinson's medications, to see if it can reduce the amount of "OFF" time you experience each day when symptoms return between doses of levodopa.
Los Alamitos, CaliforniaAges 30–80 - NCT05919160Enrolling by invitation
New tiny electrode to record brain activity during DBS
This study tests a high-density microelectrode that captures detailed brain recordings while surgeons place a deep brain stimulator for Parkinson’s disease. It may help doctors better locate the exact brain area to target during surgery.
Los Angeles, CaliforniaAges 18 years+ - NCT04477785Recruiting
Study to track Parkinson’s signs using imaging, spinal fluid, and genes
This study is building a large, detailed group of people—some with Parkinson’s and some at higher risk—to understand early changes over time. It uses brain imaging (DaTscan SPECT), sometimes spinal fluid tests (lumbar puncture), and genetic information to help researchers better measure disease and develop future treatments.
Los Angeles, CaliforniaAges 30 years+ - NCT04071847Recruiting
Study tracking results after Abbott deep brain stimulator surgery
This study follows people who are getting a new Abbott deep brain stimulator (DBS) device or replacing the battery/implantable pulse generator to see how outcomes change over time. It mainly applies to certain DBS targets and diagnoses, and it uses follow-up visits to track results.
Los Angeles, CaliforniaAges Any age - NCT03623672Enrolling by invitation
Study for early signs of Parkinson-related brain changes
This study enrolls people with idiopathic REM sleep behavior disorder, a sleep problem that can come before Parkinson’s disease or related conditions. It aims to better understand early (“prodromal”) changes so future treatments can be targeted earlier.
Los Angeles, CaliforniaAges 18 years+ - NCT04994015RecruitingTeam says not enrolling
Genetic registry for people with Parkinson’s
This study builds a genetics “registry” of people diagnosed with Parkinson’s disease who agree to genetic testing. Your information may help researchers understand why Parkinson’s happens and improve future treatments.
Los Angeles, CaliforniaAges 18 years+ - NCT05307055Recruiting
Testing brain effects after low-frequency stimulation in Parkinson’s
This study looks at how Parkinson’s disease symptoms and brain thinking (neurocognitive function) may change after low-frequency stimulation from an implanted brain device. It may help researchers understand whether this specific stimulation pattern could improve thinking or brain-related symptoms.
Los Angeles, CaliforniaAges 18 years+ - NCT05826457Enrolling by invitation
Study for early RBD as a possible Parkinson’s risk
This study looks at people with REM sleep behavior disorder (RBD), confirmed by a sleep test, who may be in the early “prodromal” stage before Parkinson’s or related diseases. It also enrolls healthy controls to compare results from brain and body testing to better understand who is at risk.
Los Angeles, CaliforniaAges 18 years+ - NCT07092995Enrolling by invitation
Understanding freezing of gait in Parkinson's using VR and brain signals
This study uses virtual reality and brain recordings from your DBS device to understand why some people with Parkinson's experience freezing of gait (feeling like your feet are stuck to the ground). You'll be asked to walk in a safe VR environment while researchers monitor your brain activity.
Los Angeles, CaliforniaAges 18 years+
Hear when a new Parkinson’s disease trial opens near Riverside–San Bernardino, CA
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Parkinson’s disease trials in other cities
Where these studies are running near Riverside–San Bernardino
Institutions with a site for the recruiting parkinson’s disease studies listed above.
- University of California, Los Angeles (UCLA) · 8 studies
- Cedars-Sinai Medical Center · 3 studies
- Keck Medicine of USC · 3 studies
- The Parkinson's & Movement Disorder Institute · 3 studies
- University of California, Irvine Medical Center / UC Irvine Health · 3 studies
- Collaborative Neuroscience Research · 2 studies
- Parkinson's Research Centers of America - Orange County · 2 studies
- University of California, Irvine · 2 studies
What taking part in a parkinson’s disease study involves
A screening visit first
Before anything else, the study team checks whether you fit — usually a visit with some tests. You can stop at any point, and screening is typically free.
Care at a nearby site
Study visits happen at a clinic or hospital taking part. Many studies cover the cost of the study treatment and related visits, and some reimburse travel.
You stay in control
Taking part is voluntary and you can leave a study at any time, for any reason, without affecting your regular care.
The team decides eligibility
Our fit check is a helpful first read, not a decision. The study team makes the final call after reviewing your health history.
Looking wider? See all recruiting parkinson’s disease studies in California.
Common questions
- Are there parkinson’s disease clinical trials near Riverside–San Bernardino?
- Yes. We're currently tracking 26 recruiting parkinson’s disease studies with a site near Riverside–San Bernardino, each rewritten in plain language so you can see what it's testing and who it's for.
- How do I find out if I qualify for a parkinson’s disease study near Riverside–San Bernardino?
- Each study lists its eligibility rules — age, diagnosis, prior treatments. On every trial page we explain these in plain language and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Do I have to live in Riverside–San Bernardino to take part?
- Not necessarily. These studies have a site near Riverside–San Bernardino, but eligibility is about your health, not your address — some people travel to take part, and a few studies reimburse travel. The study team can tell you what's required.
- Does it cost anything to join a parkinson’s disease trial?
- Using Clin2 is always free. Many trials cover the study treatment and related visits; some reimburse travel. The study team explains exactly what's covered before you decide.
Not the right time?
New parkinson’s disease studies open near Riverside–San Bernardino regularly. Set up a health profile and we’ll quietly watch for studies that fit you and email you when one opens.