Clinical trial Recruiting at 1 site Interventional Ages 40 to 85

Monitoring levodopa levels in Parkinson's disease using a new sensor

Official title: Real-Time Levodopa Monitoring for Improved Management of Parkinson Disease

Run by University of California, San Diego · NCT04735627 · Data updated 2026-11-12

This study is testing a new sensor that can measure levodopa levels in real time for people with Parkinson's disease to help improve their treatment and manage symptoms better.

Quick facts

Study typeInterventional
Ages40 Years to 85 Years
SexAll
Enrollment20 (estimated)
SponsorUniversity of California, San Diego
Academic / other
Locations1 site (San Diego, California)
StatusRecruiting
StartedDecember 7, 2021
Main results expectedDecember 2027
Study endsFebruary 2028
Registry record updatedFebruary 11, 2025
Trial IDNCT04735627 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are individuals diagnosed with clinically established Parkinson disease who are currently taking oral carbidopa/levodopa therapy.

Probably not a fit

Patients with other neurological conditions, major psychiatric diseases, or those who have undergone deep brain stimulation may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This project focuses on developing a minimally invasive sensor device, known as the Levodopameter, to monitor levodopa levels in real time for individuals with Parkinson disease. The study aims to assess the accuracy, tolerability, and safety of this device, which measures levodopa levels from body fluids such as capillary blood, sweat, and interstitial fluid. By providing continuous monitoring, the goal is to identify individualized treatment regimens that can improve disease management and reduce motor complications associated with fluctuating levodopa responses. This approach seeks to enhance the understanding of how levodopa affects patients on a day-to-day basis, potentially leading to better therapeutic outcomes.

Why it matters

Potential benefit: If successful, this study could lead to more personalized and effective management of Parkinson disease symptoms through optimized levodopa dosing.

How similar studies have gone: While the concept of real-time monitoring of medication levels is innovative, similar approaches in other conditions have shown promise, suggesting potential for success in this novel application.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Participants must meet the Movement Disorders Society (MDS) diagnostic criteria for clinically established Parkinson disease.
2. Able to provide signed informed consent (in English or Spanish)
3. Mild, moderate, or severe Parkinson disease, able to ambulate (Hoehn and Yahr stages I-IV)
4. Taking instant release oral carbidopa/levodopa therapy
5. Either not taking, or on stable doses of any of the following antiparkinsonian medications: dopamine agonists, monoamine oxidase B (MAO-B) inhibitors or catecholamine O-methyl transferase (COMT) inhibitors

Exclusion Criteria:

1. Other neurological conditions including but not limited to stroke, dementia (including Parkinson disease dementia), or traumatic brain injury
2. Co-existent major psychiatric disease
3. Uncontrolled, active medical conditions (e.g., heart, kidney, or liver failure, diabetes, etc.)
4. Status post deep brain stimulation (DBS) device placement
5. Any other condition, that in the opinion of the investigators, would place the participant at risk.

Where it's running

  • University of California San DIego
    San Diego, California, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.