Effect of Ketoconazole on the Pharmacokinetics of Refametinib

An Open-label Study in Healthy Male Subjects to Assess the Effect of a Strong CYP3A4 Inhibitor, Ketoconazole, on the Pharmacokinetics of Refametinib

The purpose of this study is to see if there is a difference between the way your body absorbs and distributes BAY86-9766 when given alone or in combination with ketoconazole, a drug which may affect how much BAY86-9766 is absorbed, distributed or eliminated from the body

Study Overview

• Status: Completed
• Conditions: Drug Interactions
• Intervention / Treatment: Drug: Ketoconazole; Drug: BAY86-9766

• Study Type: Interventional
• Enrollment (Actual): 18
• Phase: Phase 1

Contacts and Locations

Study Locations

• United States
  • Texas
    • Austin, Texas, United States, 78744

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 45 years (Adult)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: Male

Description

Inclusion Criteria:

• Healthy male subject
• Age: 18 to 45 years (inclusive) at the first screening examination / visit
• Body mass index (BMI): 18.5 to 32 kg/m² (inclusive)
• Ability to understand and follow study-related instructions. Subject, who is a sexually active man and has not been surgically sterilized, must consent that he uses a condom during intercourse and ensures that his female partner practices adequate contraception, or he must be willing to refrain from sexual intercourse from the beginning of the trial (signing of the informed consent) until 30 days after last study drug administration

Exclusion Criteria:

• Clinically significant disease or condition
• Retinal pathology or vien occlusion
• Left Ventricular ejection Fraction(LVEF) <60% (as measured at screening) by Multiple Gated Acquisition Scan(MUGA) or echocardiogram

Study Plan

How is the study designed?

Design Details

• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm

Intervention / Treatment

Experimental: BAY86-9766; The study will be conducted in two parts and study treatments will be administered as follows: •Part A: Three subjects will be enrolled and will receive 10 mg of refametinib on Day 1. Once daily dosing of ketoconazole 400 mg will be initiated on Day 5 and will continue until Day 12 with 10 mg of refametinib administered concomitantly on Day 8 •Part B: Fifteen subjects will be enrolled and will receive refametinib doses of 10 mg, 20 mg or 30 mg on Days 1 and 8 with the same dose administered on both days. Refametinib dose for Part B will be based on safety and refametinib pharmacokinetics in Part A. Ketoconazole 400 mg will be administered once daily on Days 5 to 12. Subjects will stay in the investigational site for a total period of 15 consecutive days

Drug: Ketoconazole; Drug: BAY86-9766

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Time Frame
Cmax(maximum observed drug concentration in measured matrix after single dose administration) of BAY86-9766	Day 1: pre-dose and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 36, 48, 72 and 96 h post-dose; Day 8: pre-dose and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 36, 48, 72, 96, 120 and 144 hours post-dose
AUC(area under the concentration vs. time curve from zero to infinity after single (first) dose) of BAY86-9766	Day 1: pre-dose and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 36, 48, 72 and 96 h post-dose; Day 8: pre-dose and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 36, 48, 72, 96, 120 and 144 hours post-dose
t1/2(half-life associated with the terminal slope) of BAY86-9766	Day 1: pre-dose and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 36, 48, 72 and 96 h post-dose; Day 8: pre-dose and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 36, 48, 72, 96, 120 and 144 hours post-dose

Secondary Outcome Measures

Outcome Measure	Time Frame
Number of participants with adverse events as a measure of safety and tolerability	2.5 months
AUC(0-tlast)(AUC from time 0 to the last data point > LLOQ) of BAY86-9766 and Metabolites M-11 and M-17	Day 1: pre-dose and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 36, 48, 72 and 96 h post-dose; Day 8: pre-dose and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 36, 48, 72, 96, 120 and 144 hours post-dose
tmax(time to reach Cmax) of BAY86-9766 and Metabolites M-11 and M-17	Day 1: pre-dose and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 36, 48, 72 and 96 h post-dose; Day 8: pre-dose and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 36, 48, 72, 96, 120 and 144 hours post-dose
tlast(time of last observed concentration value above lower limit of quantitation) of BAY86-9766 and Metabolites M-11 and M-17	Day 1: pre-dose and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 36, 48, 72 and 96 h post-dose; Day 8: pre-dose and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 36, 48, 72, 96, 120 and 144 hours post-dose
Cmax(maximum observed drug concentration in measured matrix after single dose administration) of Metabolites M-11 and M-17	Day 1: pre-dose and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 36, 48, 72 and 96 h post-dose; Day 8: pre-dose and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 36, 48, 72, 96, 120 and 144 hours post-dose
AUC(area under the concentration vs. time curve from zero to infinity after single (first) dose) of Metabolites M-11 and M-17	Day 1: pre-dose and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 36, 48, 72 and 96 h post-dose; Day 8: pre-dose and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 36, 48, 72, 96, 120 and 144 hours post-dose
t1/2(half-life associated with the terminal slope) of Metabolites M-11 and M-17	Day 1: pre-dose and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 36, 48, 72 and 96 h post-dose; Day 8: pre-dose and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 36, 48, 72, 96, 120 and 144 hours post-dose
CL/F(total body clearance of drug calculated after extravascular administration) of BAY 86-9766)	Day 1: pre-dose and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 36, 48, 72 and 96 h post-dose; Day 8: pre-dose and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 36, 48, 72, 96, 120 and 144 hours post-dose

Collaborators and Investigators

• Sponsor: Bayer

Study record dates

Study Major Dates

• Study Start: September 1, 2013
• Primary Completion (Actual): December 1, 2013
• Study Completion (Actual): December 1, 2013

Study Registration Dates

• First Submitted: August 16, 2013
• First Submitted That Met QC Criteria: August 19, 2013
• First Posted (Estimate): August 20, 2013

Study Record Updates

• Last Update Posted (Estimate): January 8, 2014
• Last Update Submitted That Met QC Criteria: January 7, 2014
• Last Verified: January 1, 2014

More Information

Terms related to this study

• Keywords: Pharmacokinetics; Healthy Volunteers; Ketoconazole; Refametinib
• Additional Relevant MeSH Terms: Physiological Effects of Drugs; Molecular Mechanisms of Pharmacological Action; Anti-Infective Agents; Enzyme Inhibitors; Hormones, Hormone Substitutes, and Hormone Antagonists; Cytochrome P-450 CYP3A Inhibitors; Cytochrome P-450 Enzyme Inhibitors; Hormone Antagonists; Antifungal Agents; Steroid Synthesis Inhibitors; 14-alpha Demethylase Inhibitors; Ketoconazole
• Other Study ID Numbers: 14751