Effects of Administration of Fostamatinib on Blood Concentrations of Digoxin in Healthy Subjects

October 5, 2011 updated by: AstraZeneca

An Open-Label, Non-Randomised, 2-Period, Single Centre Study to Assess the Pharmacokinetics of Digoxin in Healthy Subjects When Administered Alone and in Combination With Fostamatinib 100 mg Twice Daily

The purpose of this study is to investigate the drug interaction between fostamatinib and digoxin by comparing the safety, tolerability and plasma concentration of digoxin when administered alone and with fostamatinib in healthy subjects.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Anticipated)

21

Phase

  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

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

Ages Eligible for Study

18 years to 45 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Provision of informed consent prior to any study specific procedures
  • Male or female subjects aged 18 to 45 years (inclusive)
  • Minimum weight of 50 kg and body mass index (BMI) between 18 and 30 kg/m2 (inclusive)
  • Female subjects must have a negative pregnancy test at screening and on Day -1,must not be lactating, and must be of non-childbearing potential

Exclusion Criteria:

  • History or presence of gastrointestinal, hepatic, or renal disease or any other condition known to interfere with the absorption, distribution, metabolism, or excretion of drugs (except for cholecystectomy)
  • Any clinically significant illness, medical/surgical procedure or trauma within 4 weeks of the first administration of the investigational product
  • Subjects who smoke more than 5 cigarettes or the equivalent in tobacco per day
  • Absolute neutrophil count of <2500/mm3 or 2.5 x 109/L
  • Previous treatment with fostamatinib or digoxin in the present study

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: Non-Randomized
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: 1
Digoxin
Drug: Digoxin
oral tablets, 0.25mg bd on Day 1 and 0.25 Once daily from Day 2 to 15
Experimental: 2
Fostamatinib
Drug: Digoxin
oral tablets, 0.25mg bd on Day 1 and 0.25 Once daily from Day 2 to 15
Drug: Fostamatinib
oral tablets, 100mg (2 X 50mg) bd from Day 9 - 15

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
To investigate whether the plasma concentration-time profiles and resulting PK parameters of digoxin are altered during steady-state fostamatinib administration. Digoxin AUCss and Cmaxss will be measured
Time Frame: Day 8 and Day 15
Day 8 and Day 15

Secondary Outcome Measures

Outcome Measure
Time Frame
To examine the safety + tolerability of fostamatinib in combination with digoxin. Assessments: Adverse events, lab assessments, vital signs, phys exam,12-lead ECG. Absolute values and change in baseline for any of these parameters will be reported
Time Frame: From screening, Day 1 - Day 17, through to Follow up visit
From screening, Day 1 - Day 17, through to Follow up visit
To examine the steady-state PK of R406 during co-administration of fostamatinib with digoxin at steady-state. R406 AUCss, tmaxss and Cmaxss will be measured
Time Frame: Day 15
Day 15
To examine the urinary steady-state PK of digoxin in healthy subjects when administered alone and in combination with fostamatinib at steady-state. Digoxin Ae(0-t), Fe, and CLr will be measured
Time Frame: Day 8 and Day 15
Day 8 and Day 15

Collaborators and Investigators

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

Sponsor

AstraZeneca

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.

General Publications

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

June 1, 2011

Primary Completion (Actual)

September 1, 2011

Study Completion (Actual)

September 1, 2011

Study Registration Dates

First Submitted

May 17, 2011

First Submitted That Met QC Criteria

May 17, 2011

First Posted (Estimate)

May 18, 2011

Study Record Updates

Last Update Posted (Estimate)

October 6, 2011

Last Update Submitted That Met QC Criteria

October 5, 2011

Last Verified

October 1, 2011

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • D4300C00026

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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