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Clinical Trial Summary

This study investigates the effect of the co-administration of verapamil on the steady-state pharmacokinetics (PK) of solifenacin succinate and tamsulosin given as a combination tablet, EC905.


Clinical Trial Description

The effect of the co-administration of verapamil on the steady state PK of solifenacin succinate and tamsulosin HCl OCAS (Oral Controlled Absorption System) is evaluated in this study.

Verapamil has been chosen to represent the effect of moderate CYP3A4 inhibitors on the combined administration of solifenacin and tamsulosin given as combination tablet EC905.

Subjects are admitted to the clinic on Day -1. From Days 1-10, they receive one daily dose of EC905 to obtain steady state, followed by 20 days (Days 11-30) combined dosing of EC905 and verapamil.

On Day 10 a 24-hour PK profile is obtained for solifenacin/tamsulosin. After the last dosing on Day 30, a post-dose 24-hour PK profile for solifenacin/tamsulosin and verapamil is obtained.

Additionally, vital signs, safety ECG (Electrocardiogram) measurements, safety laboratory assessments, adverse events and concomitant medications are monitored throughout the investigational period.

Subjects return for an ESV (End of Study Visit) 10 days after the last dosing. ;


Study Design

Endpoint Classification: Pharmacokinetics Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Basic Science


Related Conditions & MeSH terms


NCT number NCT01943487
Study type Interventional
Source Astellas Pharma Inc
Contact
Status Completed
Phase Phase 1
Start date August 2009
Completion date December 2009

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