Clinical trial NCT01953861: A Study to Evaluate Whether Food Has an Effect on the Uptake of Solifenacin and Tamsulosin When Administered in a Combination Tablet
Official title: An Open-label, Single Dose, Randomized, Three-way Cross-over Study to Evaluate the Effect of Food on the Pharmacokinetics of Solifenacin and Tamsulosin Administered as Combination Tablet EC905 in Young, Healthy Male Subjects
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE1
Conditions: EC905
Pharmacokinetics
Healthy Subjects
Keywords: Phase I
Combination tablet EC905
Omnic OCAS®
Vesicare®
Food effect
Vesomni
VesiFlow
Urizia
Lead sponsor: Astellas Pharma Inc
Sponsor class: INDUSTRY
First posted: 2013-10-01
Enrollment: 52
Sex: MALE
Minimum age (years): 18
Maximum age (years): 55
Standard ages: ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: CROSSOVER
Primary purpose: BASIC_SCIENCE

Brief summary: To evaluate the effect of food (low and high fat breakfast vs. fasting) on the pharmacokinetics (what the body does to the drug) of a single dose of solifenacin and tamsulosin administered as combination tablet EC905. Also to evaluate the safety and tolerability of single doses of EC905 in young, healthy male subjects, when administered under fed (low and high fat) or fasting conditions.

Detailed description: Subjects are admitted to the clinic on Day -1 and receive a single dose of the combination tablet EC905 on the first day of 3 periods, under three conditions (high fat breakfast, low fat breakfast, and fasting) in order to evaluate the effect of food.

Blood sampling for pharmacokinetic (PK) assessment is performed on the dosing day and for 11 days after dosing in each period. This 11-day on-site period is repeated three times so that all subjects are dosed under all conditions. Each period is separated by 7 days off site.

Subjects return for an End of Study Visit (ESV) at least 7 days after the last 11 day on-site period, or after withdrawal.

On Day 1 of each of 3 periods, subjects are given a single dose of EC905 under three conditions (high fat breakfast, low fat breakfast and fasting) in order to evaluate the effect of food on the PK of solifenacin and tamsulosin HCl. The aim is to show the absence of a food effect after a low fat breakfast vs. fasting conditions, and to evaluate the food effect after a high fat breakfast vs. fasting conditions.

Subjects are randomized to one of 6 possible sequences of fasted or fed conditions.

Screening takes place from Day -21 to Day -1. They are admitted to the clinic on Day -1. Blood sampling for PK assessment is performed from Day 1 to Day 11 of each period. This 11 day on-site period is repeated three times in order to allow all subjects to be dosed under fed (low and high fat) and fasting conditions.

The 11 day on-site periods are separated by 7-day off site periods; subjects are checked for eligibility again one day prior to the start of a new dosing day.

Safety assessments are performed throughout the investigational period. Subjects return for an ESV at least 7 days after the last 11 day on-site period, or after withdrawal.

Eligibility criteria: Inclusion Criteria:

* BMI between 18.5 and 30.0 kg/m2, inclusive.

Exclusion Criteria:

* Known or suspected hypersensitivity to solifenacin, tamsulosin or any of the other recipients of EC905.
* Any of the contraindications or precautions for use as mentioned in the applicable sections of the Summary of Product Characteristics (SPC) of tamsulosin or solifenacin
* Use of grapefruit (more than 3 x 200 ml) or marmalade (more than three times) in the week prior to admission to the Clinical Unit, as reported by the subject.

Primary outcomes:
measure: Pharmacokinetic parameter of solifenacin by Area Under the Curve from the time of dosing until the last measurable concentration (AUClast) in plasma
timeFrame: Days 1-11, 18-28, 35-45
measure: Pharmacokinetic parameter of solifenacin by maximum concentration (Cmax) in plasma
timeFrame: Days 1-11, 18-28, 35-45
measure: Pharmacokinetic parameter of tamsulosin HCl by Area Under the Curve from the time of dosing until the last measurable concentration (AUClast) in plasma
timeFrame: Days 1-11, 18-28, 35-45
measure: Pharmacokinetic parameter of tamsulosin HCl by maximum concentration (Cmax) in plasma
timeFrame: Days 1-11, 18-28, 35-45
Secondary outcomes:
measure: Pharmacokinetics profile of solifenacin concentration: (AUCinf), (t1/2), (tmax), (CL/F) and (Vz/F)
timeFrame: Days 1-11, 18-28, 35-45
measure: Pharmacokinetics profile of tamsulosin HCl concentration: (AUCinf), (t1/2), (tmax), (CL/F) and (Vz/F)
timeFrame: Days 1-11, 18-28, 35-45
measure: Safety and tolerability of single doses of EC905 (solifenacin/tamsulosin HCl) under fed or fasted conditions
timeFrame: Screening (Day-21 to -1) to ESV (at least 7 days after the last 11 day on-site period, or after withdrawal)
Other outcomes:
Locations:
city: Harrow
country: United Kingdom
facility: Parexel Early Phase Clinical Unit
Study officials:
affiliation: Astellas Pharma Europe B.V.
name: Clincial Study Manager
role: STUDY_CHAIR
References: