Open-label, Two-treatment, 4-period Replicated Crossover Study in Healthy Subjects to Investigate the Plasma Pharmacokinetics of Levodopa and Carbidopa After Oral Administration of Single Doses of Two Fixed-dose Combination Products
Overview
- Phase
- Phase 1
- Intervention
- Levodopa Carbidopa immediate release tablets
- Conditions
- Fasted State
- Sponsor
- Desitin Arzneimittel GmbH
- Enrollment
- 12
- Locations
- 1
- Primary Endpoint
- Cmax and AUC(0-tz) of levodopa and carbidopa
- Status
- Completed
- Last Updated
- 12 years ago
Overview
Brief Summary
The study is carried-out to describe and compare the plasma pharmacokinetics of levodopa and carbidopa after oral single-dose administration of 100 mg levodopa plus 25 mg carbidopa by means two fixed combination products (test: Isicom® 100/25 mg; reference: Nacom® 100/25 mg).
Additionally, to describe and compare the safety and tolerability of the two investigational treatments administered to healthy subjects.
Detailed Description
Isicom® 100/25 mg and Sinemet® (Trade name in Germany: Nacom®) 100/25 mg are authorised fixed-combination products containing 100 mg levodopa plus 25 mg carbidopa. These two formulations were tested for bioequivalence in 1997 (DESITIN trial № LCD-010/K); based on the regulatory provisions in place at that time (CPMP/EWP/QWP/1401/98), the two formulations could be accepted to be bioequivalent. The present study is proposed to be conducted in order to verify and confirm the bioequivalence of Isicom® 100/25 mg (test formulation) and Nacom® 100/25 mg (reference formulation) in agreement with the pertinent regulatory guidance that came in place 2010 (CHMP Guideline On The Investigation Of Bioequivalence - CPMP/EWP/QWP/1401/98- Rev. 1/ Corr - Jan.2010).
Investigators
Eligibility Criteria
Inclusion Criteria
- •Males or females (females of non-childbearing potential or of childbearing potential while taking medically appropriate contraception)
- •Race: Caucasian
- •Age: 18 to 45 years
- •Body weight: 50 100 kg
- •Body Mass Index: 18 26 kg.m-2
- •Healthy based on the screening examination
- •Willing and able to provide informed consent
Exclusion Criteria
- •Previous participation in this trial or participant in any other trial during the last 90 days
- •Donation of blood or plasma during the last 90 days or a history of blood loss exceeding 300 mL within the last 3 months
- •History of any clinically relevant allergy including hypersensitivity to levodopa or carbi-dopa and related excipients
- •Presence of any acute or chronic infection
- •Presence or history of any relevant co-morbidity
- •Resting systolic blood pressure \> 160 or \< 90 mmHg, diastolic blood pressure \> 95 or \< 50 mmHg
- •Clinically relevant ECG-abnormalities, in particular prolonged QTc(F) of \> 450 msec in males and \> 460 msec in females
- •Presence of any relevant abnormality in the laboratory safety tests, especially low haemo-globin (\< 120 g/L in females and (\< 136 g/L in males) and increased liver enzymes (2 times the upper limit of the normal range)
- •Positive serology for HBsAg or anti HCV
- •Positive HIV test
Arms & Interventions
Levodopa Carbidopa 100/25 tablets Test 1
single oral dose of levodopa carbidopa immediate release tablets
Intervention: Levodopa Carbidopa immediate release tablets
Levodopa Carbidopa 100/25 tablets Ref. 1
single oral dose of levodopa carbidopa immediate release tablets
Intervention: Levodopa Carbidopa immediate release tablets
Levodopa Carbidopa 100/25 tablets Test 2
single oral dose of levodopa carbidopa immediate release tablets
Intervention: Levodopa Carbidopa immediate release tablets
Levodopa Carbidopa 100/25 tablets Ref. 2
single oral dose of levodopa carbidopa immediate release tablets
Intervention: Levodopa Carbidopa immediate release tablets
Outcomes
Primary Outcomes
Cmax and AUC(0-tz) of levodopa and carbidopa
Time Frame: 12 hours
Cmax (maximal plasma concentration), AUC (area under the curve)