- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02448914
A Study to Compare Plasma Levels of Levodopa, Carbidopa and Entacapone After TRIGEL or Duodopa Infusion in PD Patients
A Single Centre, Two-period, Open Label, Randomised, Cross-over Study to Assess Plasma Levodopa, Carbidopa and Entacapone Concentrations After Continuous Infusion of TRIGEL or Duodopa in Patients With Advanced Parkinson´s Disease
Study Overview
Detailed Description
Intestinal infusion of Duodopa (levodopa and carbidopa) provides faster absorption, comparable levodopa bioavailability and significantly reduced intra-patient variability in levodopa concentrations relative to oral administration. TRIGEL also contains a third ingredient, entacapone. In tablet form, entacapone is shown to improve the bioavailability of levodopa and might extend the half-life of levodopa, avoiding deep troughs in levodopa plasma levels, and providing more continuous delivery of levodopa to the brain.
The intention with the study is to confirm that TRIGEL administration increases the area under the curve (AUC) for levodopa by combining levodopa, carbidopa, and entacapone and thereby lower the daily levodopa dose needed. It is expected that TRIGEL administration will result in a similar intra-patient variability in plasma levodopa concentrations as Duodopa during continuous administration.
Study Type
Enrollment (Actual)
Phase
- Phase 1
Contacts and Locations
Study Locations
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Uppsala, Sweden, SE-75185
- Clinical Trial Consultants AB
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Willing and able to provide informed consent and judged by the Investigator to have decision-making capacity
- Advanced levodopa-responsive idiopathic PD currently treated with Duodopa infusion since minimum 30 days
- 30 years of age or older
- BMI between 17.0 and 31.0 kg/m2, both inclusive
- Agreed to use adequate contraceptive measures:
Female patients who have been post-menopausal for more than one year or female patients of childbearing potential using a highly efficient method of contraception during the study (i.e. a method with less than 1% failure rate [e.g. sterilisation, hormone implants, hormone injections, some intrauterine devices, or vasectomised partner]). Oral contraceptives in combination with other contraceptives are accepted.
Male patients being vasectomised or agreeing to use condoms during the study and having a partner who is using a highly efficient method of contraception as described above.
Exclusion Criteria:
- Hypersensitivity or allergy to the investigational medicinal product (IMP) or to chemically related products
- Contraindications for the use of levodopa or carbidopa or entacapone
- Needing a daily total dose of Duodopa during study participation exceeding 125 mL
- Increased fluctuation in clinical PD symptoms within 7 days prior to Screening
- Administration of an investigational drug within 3 months prior to Screening and/or current participation in another clinical study involving a pharmaceutical or a medical device class III
- Use of any forbidden medication as specified in Section 9.6 of the protocol
- Known hepatitis B, hepatitis C or HIV infection
- Donation of blood or plasma or major blood loss (≥500 mL) within 3 months prior to Screening
- Positive urine drug test (amphetamine, benzodiazepines, tetrahydrocannabinol, cocaine or opiates) at Screening
- Known alcohol abuse
- Unwilling to meet the requirements of the protocol
- Other medical or social reasons for exclusion at the discretion of the Investigator
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
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Experimental: TRIGEL first, then Duodopa
First Intervention (Day 1): TRIGEL, intestinal gel (20 mg/mL levodopa, 5 mg/mL carbidopa monohydrate, and 20 mg/mL entacapone). Second Intervention (Day 2): Duodopa, intestinal gel (20 mg/mL levodopa and 5 mg/mL carbidopa monohydrate). Both TRIGEL and Duodopa treatment consists of 3 individually adjusted and pre-defined doses: a morning dose, a continuous 14 h infusion, and extra bolus doses (if required). All TRIGEL doses correspond to 80% of the pre-study individually optimised doses of Duodopa. All Duodopa doses correspond to 100% of the pre-study individually optimized doses of Duodopa. Administration is done through duodenal or upper jejunal infusion via the patient's permanently inserted gastrojejunostomy tube by means of an ambulatory infusion pump. |
All patients will receive TRIGEL.
Treatment order is determined by randomization.
Other Names:
All patients will receive Duodopa.
Treatment order is determined by randomization.
Other Names:
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Experimental: Duodopa first, then TRIGEL
First Intervention (Day 1): Duodopa, intestinal gel (20 mg/mL levodopa and 5 mg/mL carbidopa monohydrate). Second Intervention (Day 2): TRIGEL, intestinal gel (20 mg/mL levodopa, 5 mg/mL carbidopa monohydrate, and 20 mg/mL entacapone). Both TRIGEL and Duodopa treatment consists of 3 individually adjusted and pre-defined doses: a morning dose, a continuous 14 h infusion, and extra bolus doses (if required). All TRIGEL doses correspond to 80% of the pre-study individually optimised doses of Duodopa. All Duodopa doses correspond to 100% of the pre-study individually optimized doses of Duodopa. Administration is done through duodenal or upper jejunal infusion via the patient's permanently inserted gastrojejunostomy tube by means of an ambulatory infusion pump. |
All patients will receive TRIGEL.
Treatment order is determined by randomization.
Other Names:
All patients will receive Duodopa.
Treatment order is determined by randomization.
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
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Dose Adjusted Area Under the Curve (AUC) (0-14h) for Levodopa
Time Frame: During 14 h infusion on 2 consecutive days
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During 14 h infusion on 2 consecutive days
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Intra-individual Coefficient of Variation (3-14h) for Levodopa
Time Frame: During 3-14h infusion on 2 consecutive days
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The individual patient's coefficient of variation (CV) of levodopa plasma concentration during administration of TRIGEL and Duodopa respectively between 3 and 14 h after start of study drug.
CV=100*sqrt (exp (SDlog*SDlog)-1) were SDlog denotes the standard deviation computed on logged plasma concentrations.
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During 3-14h infusion on 2 consecutive days
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Dose Adjusted AUC (0-14h) for Carbidopa
Time Frame: During 14 h infusion on 2 consecutive days
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During 14 h infusion on 2 consecutive days
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Number of Adverse Events
Time Frame: Patients will be followed for the duration of the hospital stay, an expected average of 3 days
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Patients will be followed for the duration of the hospital stay, an expected average of 3 days
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Dose Adjusted AUC (0-14h) for 3-O-Methyldopa
Time Frame: During 14 h infusion on 2 consecutive days
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During 14 h infusion on 2 consecutive days
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Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Treatment Response Scale (ON/OFF Effect) - Mean % of Time Patients Were in Functional ON State During 3-14 h
Time Frame: TRS assessments were made every 30 minutes from start of study drug administration until 3 h, every hour between 3 and 14 h and every 30 minutes between 14 and 17 h.
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Dyskinesia and parkinsonism symptoms were evaluated throughout the study period as an assessment of the clinical response.
To assess the ON/OFF effect the Treatment Response Scale (TRS) was used.
The TRS ranges from -3 (severe "OFF") to +3 ("ON" with severe dyskinesia).
Results from the TRS recordings are presented as the mean percentage of time patients were in functional ON state (TRS: -1 to +1) during the time interval 3-14 h.
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TRS assessments were made every 30 minutes from start of study drug administration until 3 h, every hour between 3 and 14 h and every 30 minutes between 14 and 17 h.
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Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Dag Nyholm, Assoc. Prof., Department of Neuroscience, Neurology, Uppsala University Hospital, Sweden
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Brain Diseases
- Central Nervous System Diseases
- Nervous System Diseases
- Parkinsonian Disorders
- Basal Ganglia Diseases
- Movement Disorders
- Synucleinopathies
- Neurodegenerative Diseases
- Parkinson Disease
- Physiological Effects of Drugs
- Neurotransmitter Agents
- Molecular Mechanisms of Pharmacological Action
- Immunologic Factors
- Dopamine Agonists
- Dopamine Agents
- Adjuvants, Immunologic
- Antiparkinson Agents
- Anti-Dyskinesia Agents
- Carbidopa, levodopa drug combination
Other Study ID Numbers
- LSM-003
- 2014-004891-46 (EudraCT Number)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
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