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Parcopa Versus Carbidopa-levodopa in a Single Dose Cross-over Comparison Study

Comparison of Orally Dissolving Carbidopa/Levodopa (Parcopa) to Conventional Oral Carbidopa/Levodopa: A Single-Dose, Double-Blind, Double-Dummy, Placebo-Controlled, Crossover Trial

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00590122
Enrollment
20
Registered
2008-01-10
Start date
2006-10-31
Completion date
2008-11-30
Last updated
2023-03-14

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

Conditions

Parkinson's Disease

Keywords

Parkinson's disease, time to on, delayed on

Brief summary

To find out if a single dose of Parcopa®, a form of levodopa that dissolves in your mouth, works faster than regular oral levodopa which is swallowed, in fluctuating PD patients.

Detailed description

This is a study to compare orally dissolving levodopa (Parcopa) to the conventional immediate release oral levodopa. This is a single-dose, double-blind, placebo controlled crossover trial in participants with Parkinson disease.

Interventions

at subjects current stable dose of comparator

DRUGcarbidopa-levodopa (Sinemet)

at subjects current stable dose

Sponsors

UCB Pharma
CollaboratorINDUSTRY
Baylor College of Medicine
Lead SponsorOTHER

Study design

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

Eligibility

Sex/Gender
ALL
Age
31 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Male or female between the age of 31 and 80 -Diagnosis of idiopathic Parkinson's disease for at least three years duration * Patients requiring levodopa for their PD * Good subjective response to levodopa * Fluctuating symptoms defined by wearing off phenomenon, any dyskinesia, and/or dose failures * A UPDRS -off- motor score of at least 25 * Subjects willing to give informed consent * Subjects who are able and willing to comply with study procedures * If female of child-bearing potential, will use one of the approved birth control measures: 1. Hormonal contraceptives 2. Spermicidal and barrier 3. Intrauterine device 4. Partner sterility

Exclusion criteria

* Subjects with evidence of significant dementia * Subjects with significant oral lesions * History of unstable cardiac disease including angina or congestive heart failure within 3 months prior to study entry * History of clinically significant renal disease including renal insufficiency of sufficient degree to require adjunctive treatment or dietary restrictions * History of clinically significant hepatic disease, including previously documented cirrhosis or hepatic insufficiency or jaundice within 3 months prior to study entry. * Subjects with poor response to levodopa * Women who are pregnant, breast-feeding, or planning to become pregnant during this study are excluded from participation due to unknown effects of the study drug on the fetus.

Design outcomes

Primary

MeasureTime frameDescription
Measurement of Time in Minutes From When a Patient Was in a Clinical Off State, Took Their Medication and Went Into a Clinical on Statefirst dose of day for each armTime to on state (benefit with regard to mobility, stiffness and slowness) with parcopa versus carbidopa/levodopa immediate release compound. This measurement is compared between Parcopa and carbidopa/levodopa wit the first morning dose of each intervention. Study duration was 2 days.

Countries

United States

Participant flow

Recruitment details

Crossover study design

Participants by arm

ArmCount
B-Parcopa Arm First Then Crossover to Carbidopa/Levodopa Arm
Parcopa: at subjects current stable dose of comparator
10
A-Carbidopa/Levodopa Arm Then Crossover to Parcopa Arm
carbidopa-levodopa at subjects current stable dose
10
Total20

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall Studyswallowed oral dissolving dose10

Baseline characteristics

CharacteristicTotalB-Parcopa Arm First Then Crossover to Carbidopa/Levodopa ArmA-Carbidopa/Levodopa Arm Then Crossover to Parcopa Arm
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
7 Participants3 Participants4 Participants
Age, Categorical
Between 18 and 65 years
13 Participants7 Participants6 Participants
Race/Ethnicity, Customized
African-American
1 participants1 participants0 participants
Race/Ethnicity, Customized
Asian
1 participants0 participants1 participants
Race/Ethnicity, Customized
Caucasian
15 participants7 participants8 participants
Race/Ethnicity, Customized
Hispanic
3 participants2 participants1 participants
Region of Enrollment
United States
20 participants10 participants10 participants
Sex: Female, Male
Female
6 Participants3 Participants3 Participants
Sex: Female, Male
Male
14 Participants7 Participants7 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 200 / 20
other
Total, other adverse events
1 / 202 / 20
serious
Total, serious adverse events
0 / 200 / 20

Outcome results

Primary

Measurement of Time in Minutes From When a Patient Was in a Clinical Off State, Took Their Medication and Went Into a Clinical on State

Time to on state (benefit with regard to mobility, stiffness and slowness) with parcopa versus carbidopa/levodopa immediate release compound. This measurement is compared between Parcopa and carbidopa/levodopa wit the first morning dose of each intervention. Study duration was 2 days.

Time frame: first dose of day for each arm

ArmMeasureValue (MEAN)Dispersion
B-Parcopa ArmMeasurement of Time in Minutes From When a Patient Was in a Clinical Off State, Took Their Medication and Went Into a Clinical on State23.9 minutesStandard Deviation 9.9
A-Carbidopa/Levodopa ArmMeasurement of Time in Minutes From When a Patient Was in a Clinical Off State, Took Their Medication and Went Into a Clinical on State28.5 minutesStandard Deviation 19.4

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