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Safety and Efficacy Study of CEP-1347 in the Treatment of Parkinson's Disease

A Randomized, Double-Blind, Placebo-Controlled, Dose-Finding Study to Assess the Efficacy and Safety of CEP-1347 in Patients With Parkinson's Disease

Status
Terminated
Phases
Phase 2Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00040404
Enrollment
806
Registered
2002-06-27
Start date
2002-03-31
Completion date
2005-08-31
Last updated
2012-05-10

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

Conditions

Parkinson Disease

Keywords

Parkinson's disease, Idiopathic Parkinson's disease, Idiopathic Parkinson disease, Parkinson's disease, idiopathic

Brief summary

The purpose of this study is to establish safety for CEP-1347 and to determine an efficacious dose in the treatment of Parkinson's disease.

Interventions

DRUGCEP-1347 10mg

CEP-1347 10mg, a K252a derivative, retains neuroprotective properties

DRUGCEP1347 25mg

CEP1347 25mg, a K252a derivative, retains neuroprotective properties

DRUGCEP-1347 50mg

CEP-1347 50mg, a K252a derivative, retains neuroprotective properties

OTHERPlacebo Comparator

Placebo capsules matching the CEP-1347 capsules

Sponsors

H. Lundbeck A/S
CollaboratorINDUSTRY
The Parkinson Study Group
CollaboratorNETWORK
Cephalon
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

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

Inclusion criteria

Patients will be included in the study if all of the following criteria are met: * Willing and able to give informed consent * Age 30 years or older at time of diagnosis of Parkinson's disease * Have idiopathic Parkinson's disease with at least 2 cardinal signs of disease: resting tremor, bradykinesia, or rigidity * Modified Hoehn and Yahr stage less than or equal to 2.5 * Must have had screening procedures for cancer appropriate for the patient's age and gender, within the last 12 months; or be willing to obtain such screening before randomization * Women: are not breastfeeding * Women: nonchildbearing potential (ie, postmenopausal or surgically sterile) or must use a medically accepted contraceptive regimen for at least 60 days before the baseline visit, and agree to continue such use throughout the duration of the study and for 30 days after the final dose of study drug. Women must be given a pregnancy test unless they are at least 2 years postmenopausal or surgically sterile.

Exclusion criteria

Patients will be excluded from participating in this study if 1 or more of the following criteria are met: * Have atypical Parkinsonism due to drugs, metabolic disorders, encephalitis, or other neurodegenerative diseases * Have confirmed diagnosis of Parkinson's disease for more than 5 years * Have a tremor score of 3 or more in any body part * Have any other known medical or psychiatric condition that may compromise participation in the study * Have a history of prior malignancy (excluding basal or squamous cell cancer of the skin) within the previous 5 years * Have an unresolved abnormal cancer screening test result before randomization * Have greater than trace amounts of glycosuria at screening, except for known diabetic patients * Have estimated creatinine clearance less than 50 mL/min * Have liver function tests (LFT) greater than 3 times the upper limit of normal (ULN) * Have any other clinically significant ECG or laboratory finding * Have any history of malignant melanoma * Have history of seizures (except febrile) or posttraumatic epilepsy * Have Mini-Mental State Exam (MMSE) score ≤ 26 * Have taken another investigational drug within 60 days before the baseline visit * Have received prior treatment with CEP-1347 * Have received treatment with agents with potentially confounding anti-Parkinson's disease effects, with specified substrates for CYP3A4/5, or with inhibitors of CYP3A4/5 * Received treatment within 6 months before the baseline visit with agents that may induce Parkinson's disease * Are expected, within the next 3 months, to reach a level of disability sufficient to require dopaminergic therapy * Have BECK depression score ≥ 15 * Have known or suspected sensitivity to the investigational study drugs, including B-CIT

Design outcomes

Primary

MeasureTime frameDescription
Number of participants with disability using United Parkinson's Disease Rating Scale (UPDRS)48 monthsNumber of participants with disability sufficient to require dopaminergic therapy was assessed according to the United Parkinson's Disease Rating Scale (UPDRS) Parts I and II are historical data and are designed to rate mentation, behavior and mood; Part III is done as a motor examination at the time of a visit. The UPDRS measures patient status on a scale 0, which is normal or none, to 4, which is severe or the worst scenario.

Secondary

MeasureTime frameDescription
Change from Baseline to 22 months in ([123I]β-CIT) Uptake ParticipantsChange from Baseline to 22 monthsThe effect of CEP-1347 on dopaminergic transporter density using 2β-carboxymethoxy-3β-(4-iodophenyl) tropane (\[123I\]β-CIT) single-photon emission computed tomography (SPECT) imaging
Safety and Tolerability as assessed by the number of participants experiencing adverse events48 monthsSafety was assessed by adverse events (including deaths, serious adverse events, and withdrawals due to adverse events.)

Countries

Canada, Puerto Rico, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 5, 2026