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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT00219284
Other study ID # CELC200AUS11
Secondary ID
Status Completed
Phase Phase 4
First received June 30, 2005
Last updated February 16, 2011
Start date January 2005
Est. completion date July 2008

Study information

Verified date February 2011
Source Novartis
Contact n/a
Is FDA regulated No
Health authority United States: Food and Drug Administration
Study type Interventional

Clinical Trial Summary

To assess motor function and quality of life (QoL) in Parkinson's disease (PD) subjects with end-of-dose wearing off, comparing immediate and delayed switch to carbidopa/levodopa and entacapone.


Description:

This was a prospective, multi-center, randomized, open-label study with blinded raters to evaluate the effects of immediate versus delayed switch to carbidopa/levodopa/entacapone on motor function and quality of life in patients with Parkinson's disease with end-of-dose wearing off.


Recruitment information / eligibility

Status Completed
Enrollment 359
Est. completion date July 2008
Est. primary completion date July 2008
Accepts healthy volunteers No
Gender Both
Age group 30 Years to 85 Years
Eligibility Inclusion Criteria:

- Males or females 30-80 years of age (inclusive). Patients aged 81-85 years were eligible to participate if the principal investigator considered the patient to be in otherwise good health.

- Clinical diagnosis of Parkinson's disease exhibiting two of three symptoms (rigidity, resting tremor, bradykinesia).

- All patients were required to have end-of dose wearing off (EODWO, re-emergence of PD symptoms at the end of at least two daily doses of levodopa during waking hours).

- Taking regular doses of immediate release carbidopa/levodopa

Exclusion Criteria:

- Unstable Parkinson's Disease requiring booster doses or treatment with as needed dose regimens of levodopa

- Female subjects who are pregnant, trying to become pregnant or nursing an infant

Other protocol-defined inclusion/exclusion criteria applied to this study.

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment


Related Conditions & MeSH terms


Intervention

Drug:
Carbidopa/levodopa/entacapone
Carbidopa/levodopa/entacapone was administered in 1 of 3 dose combinations: 12.5/50/200 mg, 25/100/200 mg, or 37.5/150/200 mg. The selected combination dose contained the same doses of carbidopa and levodopa the patient was receiving prior to switching to carbidopa/levodopa/entacapone.

Locations

Country Name City State
n/a

Sponsors (1)

Lead Sponsor Collaborator
Novartis Pharmaceuticals

Countries where clinical trial is conducted

United States,  Puerto Rico, 

Outcome

Type Measure Description Time frame Safety issue
Primary Change in Unified Parkinson's Disease Rating Scale (UPDRS) Part III Score From Baseline to Week 4 Motor function was assessed with the UPDRS part III. There are 14 items in the instrument, each measured on a 5 point scale (0-4): Speech, facial expression, tremor at rest, action tremor, rigidity, finger taps, hand movements, hand pronation and supination, leg agility, arising from chair, posture, gait, postural stability, and body bradykinesia. The sum of scores can range from 0 to 56; a higher score indicates greater disability. A negative change score indicates improvement. Baseline to Week 4 No
Secondary Change in Parkinson's Disease Quality of Life Score From Baseline to Week 4 Quality of life was assessed with the Parkinson's Disease Quality of Life Instrument (PDQUALIF), a 33-item self-reported questionnaire which includes seven domains: Social/role function, self-imaging/sexuality, sleep, outlook, physical function, independence, and urinary function. Questions are scored on a 5-point Likert scale ranging from 1 (never) to 3 (sometimes) to 5 (always). The 1 to 5 range was recoded to 0 to 4 for the analysis. The total score can range from 0 to 132. A lower score indicates better quality of life. A negative change score indicates improvement. Baseline to Week 4 No
Secondary Change in Parkinson's Disease Quality of Life Score From Baseline to Week 8 Quality of life was assessed with the Parkinson's Disease Quality of Life Instrument (PDQUALIF), a 33-item self-reported questionnaire which includes seven domains: Social/role function, self-imaging/sexuality, sleep, outlook, physical function, independence, and urinary function. Questions are scored on a 5-point Likert scale ranging from 1 (never) to 3 (sometimes) to 5 (always). The 1 to 5 range was recoded to 0 to 4 for the analysis. The total score can range from 0 to 132. A lower score indicates better quality of life. A negative change score indicates improvement. Baseline to Week 8 No
Secondary Change in Unified Parkinson's Disease Rating Scale (UPDRS) Part III Score From Baseline to Week 8 Motor function was assessed with the UPDRS part III. There are 14 items in the instrument, each measured on a 5-point scale (0-4): Speech, facial expression, tremor at rest, action tremor, rigidity, finger taps, hand movements, hand pronation and supination, leg agility, arising from chair, posture, gait, postural stability, and body bradykinesia. The sum of scores can range from 0 to 56; a higher score indicates greater disability. A negative change score indicates improvement. Baseline to Week 8 No
Secondary Change in the 39-item Parkinson's Disease Questionnaire (PDQ-39) Total Score From Baseline to Week 4 The PDQ-39 is another instrument used to assess quality of life in individuals with Parkinson's disease. The questionnaire provides scores on eight scales: Mobility, activities of daily living, emotions, stigma, social support, cognition, communication, and bodily discomfort. Questions are scored on a 5-point Likert scale ranging from 1 (never) to 3 (sometimes) to 5 (always). The 1 to 5 range was recoded to 0 to 4 for the analysis. The total score can range from 0 to 156. A lower score indicates better quality of life. A negative change score indicates an improvement. Baseline to Week 4 No
Secondary Change in the 39-item Parkinson's Disease Questionnaire (PDQ-39) Total Score From Baseline to Week 8 The PDQ-39 is another instrument used to assess quality of life in individuals with Parkinson's disease. The questionnaire provides scores on eight scales: Mobility, activities of daily living, emotions, stigma, social support, cognition, communication, and bodily discomfort. Questions are scored on a 5-point Likert scale ranging from 1 (never) to 3 (sometimes) to 5 (always). The 1 to 5 range was recoded to 0 to 4 for the analysis. The total score can range from 0 to 156. A lower score indicates better quality of life. A negative change score indicates an improvement. Baseline to Week 8 No
Secondary Change in Unified Parkinson's Disease Rating Scale (UPDRS) Part III Score From Baseline to End of Treatment Motor function was assessed with the UPDRS part III. There are 14 items in the instrument, each measured on a 5 point scale (0-4): Speech, facial expression, tremor at rest, action tremor, rigidity, finger taps, hand movements, hand pronation and supination, leg agility, arising from chair, posture, gait, postural stability, and body bradykinesia. The sum of scores can range from 0 to 56; a higher score indicates greater disability. A negative change score indicates improvement. Baseline to end of treatment (Week 16 in the Immediate Switch group, Week 20 in the Delayed Switch group) No
Secondary Change in Parkinson's Disease Quality of Life Score From Baseline to End of Treatment Quality of life was assessed with the Parkinson's Disease Quality of Life Instrument (PDQUALIF), a 33-item self-reported questionnaire which includes seven domains: Social/role function, self-imaging/sexuality, sleep, outlook, physical function, independence, and urinary function. Questions are scored on a 5-point Likert scale ranging from 1 (never) to 3 (sometimes) to 5 (always). The 1 to 5 range was recoded to 0 to 4 for the analysis. The total score can range from 0 to 132. A lower score indicates better quality of life. A negative change score indicates improvement. Baseline to end of treatment (Week 16 in the Immediate Switch group, Week 20 in the Delayed Switch group) No
Secondary Change in the 39-item Parkinson's Disease Questionnaire (PDQ-39) Total Score From Baseline to End of Treatment The PDQ-39 is another instrument used to assess quality of life in individuals with Parkinson's disease. The questionnaire provides scores on eight scales: Mobility, activities of daily living, emotions, stigma, social support, cognition, communication, and bodily discomfort. Questions are scored on a 5-point Likert scale ranging from 1 (never) to 3 (sometimes) to 5 (always). The 1 to 5 range was recoded to 0 to 4 for the analysis. The total score can range from 0 to 156. A lower score indicates better quality of life. A negative change score indicates an improvement. Baseline to end of treatment (Week 16 in the Immediate Switch group, Week 20 in the Delayed Switch group) No