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Study of the Effect of SR57667B on the Progression of Symptoms in Patients With Parkinson's Disease

A Phase II, Randomized, Multicenter, Double-Blind, Placebo-Controlled, Efficacy, Safety and Tolerability Study of SR57667B in Outpatients With Early Parkinson's Disease

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00228150
Enrollment
564
Registered
2005-09-28
Start date
2003-07-31
Completion date
2006-04-30
Last updated
2008-12-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Parkinson Disease

Keywords

Parkinson Disease, levodopa, dopamine agonists

Brief summary

The primary objective is to assess the effect of SR57667B at the dose of 4 mg/d on the progression of Parkinson symptoms in patients with early PD. The primary outcome will be the time to progression of disability warranting initiation of L-dopa or a dopamine agonist. Secondary outcomes will comprise assessments of symptoms, activities of daily living and global clinical status.

Detailed description

Multinational, multicenter, randomized, parallel-group, double-blind, phase II study.

Interventions

Sponsors

Sanofi
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
35 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Male or female outpatients. * Age \>=35 years at screening.· * Diagnosis of Parkinson's syndrome, on at least two of the three key Parkinson's symptoms, i.e. resting tremor, bradykinesia and rigidity. * Duration of the disease of less than 3 years since diagnosis· * Modified Hoehn and Yahr stage \<= 2.5. * Untreated patients. * Generally healthy and ambulatory. * Patient has given his informed written consent and is capable of following study procedures.

Exclusion criteria

* Any indication of forms of parkinsonism other than PD. * Severe resting tremor. * Presence of either dyskinesia, fluctuations, or loss of postural reflexes· * Treatment with L-Dopa, dopamine agonist, amantadine, anticholinergics, catechol-o-methyltransferase (COMT ) inhibitors, selegiline, dopamine receptor antagonists, catecholamine depleters, indirect dopamine agonists or alphamethyldopa. * Electroconvulsive therapy (ECT). * Use of CYP3A4 strong, and moderate inducers or inhibitors. * Participation in another clinical trial with an investigational drug within two months prior to randomization. * Dementia, uncontrolled depression, psychotic disorder. * History of substance-related disorders including alcohol or other substance use disorders. * Females of child bearing potential. * Evidence (detected by history, physical examination and/or laboratory/ECG tests) of any clinically significant or unstable medical disorder that could interfere with the patient's participation in the clinical trial; interfere with the absorption, metabolism or excretion of the study medication; or interfere with the evaluation of the study drug. * Alterations of laboratory tests or ECG findings of potential clinical significance.

Design outcomes

Primary

MeasureTime frame
Time to disability warranting introduction of Ldopaor a dopamine agonist.

Secondary

MeasureTime frame
Unified Parkinson's Disease Rating Scale (UPDRS)

Countries

Austria, Canada, Denmark, France, Germany, Morocco, Netherlands, Portugal, South Africa, Spain, Sweden, Tunisia, United Kingdom

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026