ADX48621 for the Treatment of Levodopa Induced Dyskinesia in Patients With Parkinson's Disease

NCT ID: NCT01336088

Last Updated: 2012-07-16

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

83 participants

Study Classification

INTERVENTIONAL

Study Start Date

2011-04-30

Study Completion Date

2012-02-29

Brief Summary

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The primary objective of the study is to evaluate the safety and tolerability of ADX48621 in Parkinson's disease patients following four weeks of dosing.

The secondary objectives of the study include the evaluation of the efficacy of ADX48621 compared with placebo in reducing levodopa induced dyskinesia in patients with Parkinson's; the evaluation of the effect of ADX48621 on symptoms of Parkinson's disease and patient ability to function, and the evaluation of the effect of coadministration of ADX48621 on L-dopa efficacy.

Detailed Description

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First study of ADX48621 in male and female Parkinson's disease patients with levodopa-induced dyskinesia. Four weeks, double-blind, placebo-controlled dose titration from 50 mg once daily up to 100 mg three times daily, at the start of week 4. Safety and tolerability assessed by adverse events enquiry, heart rate and blood pressure, 12-lead ECG, haematology and biochemistry. Efficacy assessments include Abnormal Involuntary Movement Scale (AIMS), Unified Parkinson's Disease rating Scale (UPDRS) patient PD symptom diaries, Hospital Anxiety Depression Scale (HADS), patient and clinician global impression of change in PD and dyskinesia (PGIC and CGIC).

Conditions

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Parkinson's Disease

Keywords

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dyskinesia Parkinson's disease

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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ADX48621

Group Type EXPERIMENTAL

ADX48621

Intervention Type DRUG

oral administration

ADX48621 Matching Placebo

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

oral administration

Interventions

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ADX48621

oral administration

Intervention Type DRUG

Placebo

oral administration

Intervention Type DRUG

Other Intervention Names

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Dipraglurant

Eligibility Criteria

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Inclusion Criteria

* outpatient with idiopathic PD according to the UK Parkinson's Disease Society Brain Bank Clinical Diagnosis Criteria (UKPDSBBCDC)
* experiences moderately disabling dyskinesia (screening visit UPDRS 33 score≥2)
* has an mAIMS score at baseline ≥ 7 with a score ≥ 3 in at least one body area

Exclusion Criteria

* surgical treatment for Parkinson's disease (e.g. Deep Brain Stimulation, within the last year or planned during the study)
* unstable co-existing psychiatric disease including cognitive impairment that, according to the Investigator, could interfere with the conduct of the study
* has a history of a significant medical condition that may affect the safety of the patient or preclude adequate participation in the study.
* is 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
Minimum Eligible Age

30 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Addex Pharma S.A.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Addex Pharma

Role: STUDY_DIRECTOR

Addex Pharma

Locations

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Addex Investigator Site

Birmingham, Alabama, United States

Site Status

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Phoenix, Arizona, United States

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La Jolla, California, United States

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Los Angeles, California, United States

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Sunnyvale, California, United States

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New Haven, Connecticut, United States

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Boca Raton, Florida, United States

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Tampa, Florida, United States

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Chicago, Illinois, United States

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Southfield, Michigan, United States

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Commack, New York, United States

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Portland, Oregon, United States

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Kirkland, Washington, United States

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Innsbruck, , Austria

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Bordeaux, , France

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Clermont-Ferrand, , France

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Nantes, , France

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Paris, , France

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Toulouse, , France

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Bochum, , Germany

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Hanau, , Germany

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Hanover, , Germany

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Kassel, , Germany

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Marburg, , Germany

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Addex Investigator Site

Munich, , Germany

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Countries

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United States Austria France Germany

References

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McFarthing K, Prakash N, Simuni T. CLINICAL TRIAL HIGHLIGHTS - DYSKINESIA. J Parkinsons Dis. 2019;9(3):449-465. doi: 10.3233/JPD-199002. No abstract available.

Reference Type DERIVED
PMID: 31356217 (View on PubMed)

Other Identifiers

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ADX48621-201

Identifier Type: -

Identifier Source: org_study_id