Sustained Release Oral Formulation for Treatment of Parkinson's Disease

July 6, 2025 updated by: University of Minnesota
Achieving sustained blood levels of carbidopa/levodopa has been a challenge in the treatment of PD and although levodopa remains the most commonly used drug, motor fluctuations remain a major disability especially in advanced Parkinson's disease. The aim of this study is to determine the efficacy of a novel oral carbidopa-levodopa formulation in achieving a sustained blood level of levodopa and carbidopa in normal volunteers.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

6

Phase

  • Early Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

  • United States
    • Minnesota
      • Minneapolis, Minnesota, United States, 55455
        • Recruiting
        • University of Minnesota
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

55 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Normal healthy
  • Are 18-65 years of age
  • Are not currently taking medications regularly
  • Able to fast 6 hours (water allowed)

Exclusion Criteria:

  • Pregnancy
  • Inability to fast

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Single Group Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: levodopa/carbidopa oral formulation A
LD/CD will be delivered using an oral device placed in the oral/buccal cavity (between cheek and gum of lower jaw) and delivers continuous release of CD and LD for both transmucosal and gastrointestinal absorption.
Drug: levodopa/carbidopa oral formulation A
Outer sachet 100mg CD/100mg LD and inner sachet 0mg CD /300mg LD
Experimental: levodopa/carbidopa oral formulation B
LD/CD will be delivered using an oral device placed in the oral/buccal cavity (between cheek and gum of lower jaw) and delivers continuous release of CD and LD for both transmucosal and gastrointestinal absorption.
Drug: levodopa/carbidopa oral formulation B
Outer sachet 100mg CD/0mg LD and inner sachet 0mg CD /400mg LD

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Carbidopa/levodopa serum level Efficacy of the delivery method
Time Frame: 4 times, then every 60 mins for a total of 6 hours after administration (total of 9 blood samples)
Carbidopa/levodopa serum level
4 times, then every 60 mins for a total of 6 hours after administration (total of 9 blood samples)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of Minnesota

Investigators

  • Principal Investigator: Khalaf Bushara, MD,FRCP, University of Minnesota

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

June 12, 2025

Primary Completion (Estimated)

June 16, 2026

Study Completion (Estimated)

June 16, 2026

Study Registration Dates

First Submitted

July 20, 2022

First Submitted That Met QC Criteria

July 20, 2022

First Posted (Actual)

July 25, 2022

Study Record Updates

Last Update Posted (Actual)

July 10, 2025

Last Update Submitted That Met QC Criteria

July 6, 2025

Last Verified

July 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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