Investigation of the Metabolism and Pharmacokinetics of Ambroxol in Healthy Male Volunteers
Phase 1
Completed
- Conditions
- Healthy
- Interventions
- Drug: [14C]-cyclohexane ambroxol oral solutionDrug: [14C]-benzyl ambroxol oral solution
- Registration Number
- NCT02194257
- Lead Sponsor
- Boehringer Ingelheim
- Brief Summary
Study to determine the basic pharmacokinetics of ambroxol and \[14C\]-radioactivity including mass balance, excretion pathways and complete metabolism in healthy male volunteers following administration of a lozenge of 20 mg ambroxol together with an oral solution of 0.4 mg \[14C\]-ambroxol labelled in two different positions
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- Male
- Target Recruitment
- 12
Inclusion Criteria
- Healthy males according to the following criteria: Based upon a complete medical history, including the physical examination, vital signs (Blood Pressure (BP), Pulse Rate (PR)), 12-lead Electrocardiogram (ECG), clinical laboratory tests
- Age ≥18 and ≤65 years
- Body mass index (BMI) ≥18.5 and BMI ≤29.9 kg/m2
- Signed and dated written informed consent prior to admission to the study in accordance with Good Clinical Practice (GCP) and the local legislation
Exclusion Criteria
- Any finding of the medical examination (including BP, PR and ECG) deviating from normal and of clinical relevance
- Any evidence of a clinically relevant concomitant disease
- Gastrointestinal, hepatic, renal, respiratory, cardiovascular, metabolic, immunological or hormonal disorders
- Diseases of the central nervous system (such as epilepsy) or psychiatric disorders or neurological disorders
- History of relevant orthostatic hypotension, fainting spells or blackouts
- Chronic or relevant acute infections
- History of relevant allergy/hypersensitivity (including allergy to study drug or its excipients)
- Intake of drugs with a long half-life (> 24 hours) within at least one month or less than ten half-lives of the respective drug prior to administration or during the trial
- Use of drugs which might reasonably influence the results of the trial based on the knowledge at the time of protocol preparation within ten days prior to administration until after the last sample from Visit 2 is collected
- Participation in another trial with an investigational drug within two months prior to administration or during the trial
- Smoker (> 10 cigarettes or > 3 cigars or > 3 pipes/day)
- Inability to refrain from smoking during the stay in the trial centre
- Alcohol abuse (more than on average two units of alcoholic beverages per day or more than 14 units per week (one unit equals one pint [285 mL] of beer or lager, one glass [125 mL] of wine, 25 mL shot of 40% spirit)).
- Drug abuse
- Blood donation (more than 100 mL within 60 days prior to study drug administration or during the trial)
- Excessive physical activities (within one week prior to administration or during the Trial until follow-up examination)
- Any laboratory value outside the reference range that is of clinical relevance
- Inability to comply with dietary regimen of study centre
- A marked baseline prolongation of QT/QTc interval (e.g., repeated demonstration of a QTc interval >450 ms)
Exclusion criteria specific for this study:
- Veins unsuitable for blood sampling
- PR interval >220 ms or QRS interval >120 ms
- Exposure to radiation for diagnostic reasons (except dental X-rays and plain X-rays of thorax and bony skeleton [excluding spinal column]), during work or during participation in a medical trial in the previous year
- Irregular defecation pattern (less than once per two days)
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- SINGLE_GROUP
- Arm && Interventions
Group Intervention Description [14C]-cyclohexane ambroxol oral solution + ambroxol lozenge [14C]-cyclohexane ambroxol oral solution - [14C]-benzyl ambroxol oral solution + ambroxol lozenge [14C]-benzyl ambroxol oral solution - [14C]-cyclohexane ambroxol oral solution + ambroxol lozenge Ambroxol lozenge - [14C]-benzyl ambroxol oral solution + ambroxol lozenge Ambroxol lozenge -
- Primary Outcome Measures
Name Time Method Individual time course profiles of [14C]-radioactivity (in nmoleq/L or nmoleq/kg for faeces) in plasma up to 120 hours after drug administration Rate and extent of excretion mass balance based on the total radioactivity in urine and faeces up to 216 hours after drug administration Individual time course profiles of ambroxol in plasma up to 120 hours after drug administration Identification of major metabolites in urine, feces and plasma in comparison with various animal species up to 48 hours after drug administration Cblood cells/Cplasma ratio of [14C]-radioactivity and Cblood /Cplasma ratio of [14C]-radioactivity up to 120 hours after drug administration tmax (time from dosing to the maximum concentration of the analyte(s) in plasma) up to 120 hours after drug administration AUC0-∞ (area under the concentration-time curve of the analyte(s) in plasma over the time interval from 0 to infinity) up to 120 hours after drug administration λz (terminal rate constant in plasma) up to 120 hours after drug administration t1/2 (terminal half-life of the analyte(s) in plasma) up to 120 hours after drug administration Individual time course profiles of ambroxol in urine up to 216 hours after drug administration AUC0-tz (area under the concentration-time curve of the analyte(s) in plasma over the time interval from 0 to the time of the last quantifiable data point) up to 120 hours after drug administration CL/F (total clearance of the analyte in plasma after oral administration) up to 120 hours after drug administration Vz/F (apparent volume of distribution during the terminal phase λz following an oral dose) up to 120 hours after drug administration fefaeces,0-tz (fraction of analyte excreted in faeces within the time interval zero to tz in % of dose) up to 216 hours after drug administration fe0-tz (fraction of analyte excreted in urine within the time interval zero to tz in % of dose) up to 216 hours after drug administration Individual time course profiles of [14C]-radioactivity (in nmoleq/L or nmoleq/kg for faeces) in urine up to 216 hours after drug administration Cmax (maximum concentration of the analyte(s) in plasma) up to 120 hours after drug administration Ae0-tz (amount of analyte that is eliminated in urine within the time interval zero to tz) up to 216 hours after drug administration CLR,t1-t2 (renal clearance of analyte from the within the time interval t1 to t2) up to 216 hours after drug administration Individual time course profiles of [14C]-radioactivity (in nmoleq/L or nmoleq/kg for faeces) in faeces up to 216 hours after drug administration MRTpo (mean residence time of the analyte(s) in the body after oral administration) up to 120 hours after drug administration Aefaeces,0-tz (amount of analyte excreted in faeces within the time interval zero to tz) up to 216 hours after drug administration
- Secondary Outcome Measures
Name Time Method Number of patients with clinically significant changes vital signs (blood pressure [BP], pulse rate [PR]) up to 39 days Number of patients with adverse events up to 39 days Number of patients with clinically significant changes in 12-lead electrocardiogram (ECG) up to 39 days Number of patients with abnormal changes in laboratory parameters up to 39 days Assessment of tolerability on a 4-point scale Day 14