Dipraglurant (ADX48621) for the Treatment of Patients With Parkinson's Disease Receiving Levodopa-based Therapy

a study on Parkinson's Disease Drug Induced Dyskinesia Dyskinesia

Summary

Eligibility
for people ages 30-85 (full criteria)
Location
at Irvine, California and other locations
Dates
study started
completion around

Description

Summary

This study is designed to evaluate the safety and efficacy of dipraglurant in PD patients with dyskinesia (randomized 1:1 to receive active or placebo) for 12 weeks (1 week at 150 mg per day and 11 weeks at 300 mg per day). The primary efficacy assessment will be based on the Unified Dyskinesia Rating Scale (UDysRS). Patients who complete the 12-week blinded treatment period may have the option to roll into an open-label safety extension study for an additional 12-month treatment period.

Official Title

Phase 2b/3, Randomized, Double-blind, Placebo-controlled Study to Evaluate the Safety and Efficacy of Dipraglurant (ADX48621) for the Treatment of Dyskinesia in Patients With Parkinson's Disease Receiving Levodopa-based Therapy

Keywords

Parkinson Disease, Dyskinesia, Drug-Induced, Dyskinesias, Parkinson's disease, Dyskinesia, Levodopa-induced Dyskinesia, Drug-Induced Dyskinesia, Dipraglurant, Dipraglurant TID

Eligibility

You can join if…

Open to people ages 30-85

  • Patients with Parkinson's Disease on a stable regimen of antiparkinson's medications, including a levodopa preparation administered not less than 3 times daily.
  • Meet protocol-specified criteria for moderate to severe dyskinesia symptoms based on UDysRS and Movement Disorder Society - Unified Parkinson's Disease Rating Scale (MDS-UPDRS) assessments.
  • Meet protocol specified criteria for ON time with troublesome dyskinesia based on a standard PD home diary.

You CAN'T join if...

  • Prior surgical treatment for Parkinson's Disease (e.g., deep brain stimulation).
  • Other neurological disease (including psychiatric disease and/or cognitive impairment) that, in the opinion of the investigator, would affect the patient's ability to complete study assessments.
  • Other significant medical condition that may affect the safety of the patient or preclude adequate participation in the study.

  • Pregnant or breast-feeding. Female patients who are of child-bearing potential must be using adequate contraceptive methods (e.g. oral contraceptive, double-barrier method, intra-uterine device, intra-muscular hormonal contraceptive), and have a negative pregnancy test at Screening.

    Other protocol-defined inclusion and exclusion criteria may apply

Locations

  • University of California Irvine Medical Center accepting new patients
    Irvine California 92697 United States
  • Pacific Neuroscience Institute accepting new patients
    Torrance California 90503 United States

Details

Status
accepting new patients
Start Date
Completion Date
(estimated)
Sponsor
Addex Pharma S.A.
ID
NCT04857359
Phase
Phase 2/3 research study
Study Type
Interventional
Participants
Expecting 140 study participants
Last Updated
Contact us about this trial