Investigation of the Metabolism and Pharmacokinetics of Ambroxol in Healthy Male Volunteers

July 17, 2014 updated by: Boehringer Ingelheim

Investigation of the Metabolism and Pharmacokinetics of an Open Label Single Dose of 20 mg Ambroxol Administered as a Lozenge Together With an Oral Solution of 0.4 mg [14C]-Ambroxol in Healthy Male Volunteers

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

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
12

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 65 years (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Male

Description

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 Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: TREATMENT
  • Allocation: NON_RANDOMIZED
  • Interventional Model: SINGLE_GROUP
  • Masking: NONE

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: [14C]-cyclohexane ambroxol oral solution + ambroxol lozenge
Drug: [14C]-cyclohexane ambroxol oral solution
Drug: Ambroxol lozenge
Experimental: [14C]-benzyl ambroxol oral solution + ambroxol lozenge
Drug: Ambroxol lozenge
Drug: [14C]-benzyl ambroxol oral solution

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Individual time course profiles of [14C]-radioactivity (in nmoleq/L or nmoleq/kg for faeces) in plasma
Time Frame: up to 120 hours after drug administration
up to 120 hours after drug administration
Individual time course profiles of ambroxol in plasma
Time Frame: up to 120 hours after drug administration
up to 120 hours after drug administration
Rate and extent of excretion mass balance based on the total radioactivity in urine and faeces
Time Frame: up to 216 hours after drug administration
up to 216 hours after drug administration
Identification of major metabolites in urine, feces and plasma in comparison with various animal species
Time Frame: up to 48 hours after drug administration
up to 48 hours after drug administration
Cblood cells/Cplasma ratio of [14C]-radioactivity and Cblood /Cplasma ratio of [14C]-radioactivity
Time Frame: up to 120 hours after drug administration
up to 120 hours after drug administration
Cmax (maximum concentration of the analyte(s) in plasma)
Time Frame: up to 120 hours after drug administration
up to 120 hours after drug administration
tmax (time from dosing to the maximum concentration of the analyte(s) in plasma)
Time Frame: up to 120 hours after drug administration
up to 120 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)
Time Frame: up to 120 hours after drug administration
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)
Time Frame: up to 120 hours after drug administration
up to 120 hours after drug administration
λz (terminal rate constant in plasma)
Time Frame: up to 120 hours after drug administration
up to 120 hours after drug administration
t1/2 (terminal half-life of the analyte(s) in plasma)
Time Frame: up to 120 hours after drug administration
up to 120 hours after drug administration
MRTpo (mean residence time of the analyte(s) in the body after oral administration)
Time Frame: up to 120 hours after drug administration
up to 120 hours after drug administration
CL/F (total clearance of the analyte in plasma after oral administration)
Time Frame: up to 120 hours after drug administration
up to 120 hours after drug administration
Vz/F (apparent volume of distribution during the terminal phase λz following an oral dose)
Time Frame: up to 120 hours after drug administration
up to 120 hours after drug administration
Ae0-tz (amount of analyte that is eliminated in urine within the time interval zero to tz)
Time Frame: up to 216 hours after drug administration
up to 216 hours after drug administration
Aefaeces,0-tz (amount of analyte excreted in faeces within the time interval zero to tz)
Time Frame: up to 216 hours after drug administration
up to 216 hours after drug administration
fefaeces,0-tz (fraction of analyte excreted in faeces within the time interval zero to tz in % of dose)
Time Frame: up to 216 hours after drug administration
up to 216 hours after drug administration
CLR,t1-t2 (renal clearance of analyte from the within the time interval t1 to t2)
Time Frame: up to 216 hours after drug administration
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)
Time Frame: up to 216 hours after drug administration
up to 216 hours after drug administration
Individual time course profiles of [14C]-radioactivity (in nmoleq/L or nmoleq/kg for faeces) in urine
Time Frame: up to 216 hours after drug administration
up to 216 hours after drug administration
Individual time course profiles of [14C]-radioactivity (in nmoleq/L or nmoleq/kg for faeces) in faeces
Time Frame: up to 216 hours after drug administration
up to 216 hours after drug administration
Individual time course profiles of ambroxol in urine
Time Frame: up to 216 hours after drug administration
up to 216 hours after drug administration

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
Number of patients with adverse events
Time Frame: up to 39 days
up to 39 days
Number of patients with clinically significant changes vital signs (blood pressure [BP], pulse rate [PR])
Time Frame: up to 39 days
up to 39 days
Number of patients with clinically significant changes in 12-lead electrocardiogram (ECG)
Time Frame: up to 39 days
up to 39 days
Number of patients with abnormal changes in laboratory parameters
Time Frame: up to 39 days
up to 39 days
Assessment of tolerability on a 4-point scale
Time Frame: Day 14
Day 14

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Boehringer Ingelheim

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 1, 2008

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 1, 2008

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
July 17, 2014

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 17, 2014

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 18, 2014

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
July 18, 2014

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 17, 2014

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2014

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 18.494

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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