Pharmacokinetic Interaction Between Trospium With an Inhibitor of OCT1 and of P-gp in Subjects Genotyped for OCT1

April 7, 2017 updated by: Tarek Roustom, Dr. R. Pfleger Chemische Fabrik GmbH

Pharmacokinetic Interaction Between Trospium Chloride After Intravenous (2 mg) and Oral Administration (30 mg) With Ranitidine (300 mg p.o.) as an Inhibitor of OCT1 and With Clarithromycin (500 mg p.o.) as an Inhibitor of P-glycoprotein in 24 Healthy Subjects Genotyped for OCT1

The purpose of the study is:

  • to determine absolute bioavailability, input rates, distribution volume, renal and intestinal excretion of trospium in subjects with wild-type of SLC22A1 rs72552763 and rs12208357 and in subjects with homozygous variant alleles of SLC22A1 rs72552763 or rs12208357
  • to determine absolute bioavailability, input rates, distribution volume and renal and intestinal excretion of trospium in subjects with wild-type alleles of SLC22A1 rs72552763 and rs12208357 after co-medication of 300 mg of the OCT1- inhibitor ranitidine
  • to determine absolute bioavailability, input rates, distribution volume and renal and intestinal excretion of trospium in subjects with wild-type alleles of SLC22A1 rs72552763 and rs12208357 after co-medication of 500 mg of the P-glycoprotein- inhibitor clarithromycin
  • to determine absolute bioavailability, input rates, distribution volume and renal and intestinal excretion of trospium in subjects with homozygous variant alleles of SLC22A1 rs72552763 or rs12208357 after co-medication of 500 mg of the P-glycoprotein- inhibitor clarithromycin.

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.
24

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 45 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • ethnic origin: Caucasian
  • genotypes of OCT1: wild-type and homozygous variant alleles of SLC22A1 rs72552763 or rs12208357.
  • body mass index: ≥ 18.5 kg/m² and ≤ 30 kg/m²
  • good health as evidenced by the results of the clinical examination, ECG, and the laboratory check-up, which are judged by the clinical investigator not to differ in a clinical relevant way from the normal state (blood pressure between 110/70 and 140/90 for males and between 100/60 and 140/90 for females, heart rate over 50 bpm up to 90 bpm, laboratory values within the reference ranges as given actually by the laboratory and stored in the TMF)
  • written informed consent

Exclusion Criteria:

  • hepatic and renal diseases and/or pathological findings, which might interfere with pharmacokinetics and pharmacodynamics of the study medication (e.g. hepatic or renal dysfunction, obstruction of the urine flow with urinary retention by subvesical obstruction like benign prostatic hyperplasia, infections or tumors of the urinary tract)
  • organic causes for polydipsia and pollakiuria
  • existing cardiac or hematological diseases and/or pathological findings, which might interfere with the drug's safety, tolerability and/or pharmacokinetics (e.g. tachycardia, tachyarrhythmia, bradycardia, heart failure, coronary heart disease, disturbance of the stimulus conduction)
  • pneumonia
  • pharyngitis
  • acute phorphyria
  • hyperthyroidism
  • galactose-intolerance, lactase deficiency or glucose-galactose malabsorption
  • electrolyte disturbance
  • gastrointestinal diseases and/or pathological findings (e.g. hiatus hernia with gastroesophageal reflux, stenosis, ulcera, severe chronic inflammatory bowel disease like ulcerative colitis or Crohn's disease, toxic megacolon), which might interfere with pharmacokinetics and pharmacodynamics of the study medication)
  • autonomic neuropathy
  • myasthenia gravis
  • narrow-angle glaucoma
  • drug or alcohol dependence
  • positive drug or alcohol screening
  • smokers of 10 or more cigarettes per day
  • positive results in HIV, HBV and HCV screenings
  • subjects who are on a diet which could affect the pharmacokinetics of the drugs (e. g. vegans, vegetarians)
  • heavy tea or coffee drinkers (more than 1L per day)
  • lactation, pregnancy test positive or not performed or women of child-bearing age without safe contraception as stated in the Note for Guidance on Non-clinical Safety Studies for the Conduct of Human Clinical Trials for Pharmaceutical (CPMP/ICH/286/95 modifications: implants, injectables, combined oral contraceptives, IUDs, sexual abstinence or vasectomised partner and barrier-methods only in combination with one of the aforementioned)
  • subjects suspected or known not to follow instructions of the clinical investigators
  • subjects who are unable to understand the written and verbal instructions, in particular regarding the risks and inconveniences they will be exposed to as a result of their participation in the study
  • subjects liable to orthostatic dysregulation, fainting, or blackouts
  • participation in a clinical trial during the last 3 months prior to the start of the study
  • less than 14 days after last acute disease
  • less than 3 months after last blood donation
  • any medication within 4 weeks prior to the intended first administration of the study medication which might influence functions of the gastrointestinal tract (e.g. laxatives, metoclopramide, loperamide, antacids, H2-receptor antagonists, proton pump inhibitors, anticholinergics)
  • any other medication within two weeks prior to the first administration of the study medication, but at least 10-time the half-live of the respective drug (except oral contraceptives)
  • intake of grapefruit or orange containing food or beverages within 14 days prior to administration of the study medication
  • intake of poppy seed containing food or beverages within 14 days prior to administration of the study medication
  • known allergic reactions to the active ingredients used, other H2-receptor antagonists, macrolide antibiotics or to constituents of the study medication

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: Basic Science
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: None (Open Label)

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.
Active Comparator: trospium intravenous
Intravenous infusion of 2 mg trospium chloride in 20 ml saline within 60 min and 240 ml tap water p.o.
Drug: intravenous infusion of 2 mg trospium chloride
intravenous infusion of 2 mg trospium chloride in 20 ml saline within 60 min and 240 ml tap water p.o
Active Comparator: trospium oral
Oral administration of 30 mg trospium chloride with 240 ml tap water
Drug: oral administration of 30 mg trospium chloride
oral administration of 30 mg trospium chloride with 240 ml tap water
Active Comparator: trospium intravenous with ranitidine
Intravenous infusion of 2 mg trospium chloride in 20 ml saline within 60 min and oral administration of 300 mg ranitidine with 240 ml tap water
Drug: intravenous infusion of 2 mg trospium chloride
intravenous infusion of 2 mg trospium chloride in 20 ml saline within 60 min and 240 ml tap water p.o
Drug: oral administration of 300 mg ranitidine
oral administration of 300 mg ranitidine with 240 ml tap water
Active Comparator: trospium intravenous with clarithromycin
Intravenous infusion of 2 mg trospium chloride in 20 ml saline within 60 min and oral administration of 500 mg clarithromycin with 240 ml tap water
Drug: intravenous infusion of 2 mg trospium chloride
intravenous infusion of 2 mg trospium chloride in 20 ml saline within 60 min and 240 ml tap water p.o
Drug: oral administration of 500 mg clarithromycin
oral administration of 500 mg clarithromycin with 240 ml tap water
Active Comparator: trospium oral with ranitidine
Oral administration of 30 mg trospium chloride together with 300 mg ranitidine with 240 ml tap water
Drug: oral administration of 30 mg trospium chloride
oral administration of 30 mg trospium chloride with 240 ml tap water
Drug: oral administration of 300 mg ranitidine
oral administration of 300 mg ranitidine with 240 ml tap water
Active Comparator: trospium oral with clarithromycin
Oral administration of 30 mg trospium chloride together with 500 mg clarithromycin with 240 ml tap water
Drug: oral administration of 30 mg trospium chloride
oral administration of 30 mg trospium chloride with 240 ml tap water
Drug: oral administration of 500 mg clarithromycin
oral administration of 500 mg clarithromycin with 240 ml tap water

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
Measure Description
Time Frame
absolute bioavailability
Time Frame: up to 36 h after drug administration
ratio oral over intravenous area under the concentration time curve normalized by given dose
up to 36 h 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
input rates
Time Frame: up to 36 h after drug administration
up to 36 h after drug administration
volume of distribution
Time Frame: up to 36 h after drug administration
up to 36 h after drug administration
renal excretion
Time Frame: up to 36 h after drug administration
up to 36 h after drug administration
intestinal excretion
Time Frame: up to 36 h after drug administration
up to 36 h after drug administration

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.
Dr. R. Pfleger Chemische Fabrik GmbH

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 (Actual)

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.
November 1, 2016

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.
March 1, 2017

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
March 1, 2017

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).
January 2, 2017

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.
January 2, 2017

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.
January 5, 2017

Study Record Updates

Last Update Posted (Actual)

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.
April 10, 2017

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.
April 7, 2017

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.
April 1, 2017

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.
  • P334

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

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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