A Phase 1 Absolute Bioavailability Study For Oral Crizotinib In Healthy Volunteers

A Phase 1, Single Dose, Randomized, Cross-Over Absolute Bioavailability Study In Healthy Volunteers Comparing Oral To Intravenous Administration Of Crizotinib (PF-02341066)

This study will be an open-label, randomized, 2-period, 2-treatment, 2-sequence, cross-over single-dose study to test the absolute bioavailability of oral crizotinib formulation to IV formulation in healthy adult volunteers. Fourteen (14) subjects will be enrolled to obtain at least 12 evaluable subjects who complete the study. Each subject will receive two treatments (A and B) with a washout period of at least 14 days between each treatment.

Study Overview

• Status: Completed
• Conditions: Healthy
• Intervention / Treatment: Drug: crizotinib; Drug: crizotinib

Detailed Description

evaluate the absolute bioavailability of oral crizotinib to IV crizotinib.

• Study Type: Interventional
• Enrollment (Actual): 14
• Phase: Phase 1

Contacts and Locations

Study Locations

• Belgium
  • Bruxelles, Belgium, B-1070
    • Pfizer Investigational Site

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 55 years (Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Healthy male and/or female of non-childbearing potential subjects between the ages of 18 and 55 years, inclusive (Healthy is defined as no clinically relevant abnormalities identified by a detailed medical history, full physical examination, including blood pressure and pulse rate measurement, 12-lead ECG and clinical laboratory tests).
• Body Mass Index (BMI) of 17.5 to 30.5 kg/m^2; and a total body weight >50 kg (110 lbs)

Exclusion Criteria:

• Evidence or history of clinically significant hematological, renal, endocrine, pulmonary, gastrointestinal, cardiovascular, hepatic, psychiatric, neurologic, or allergic disease (including drug allergies, but excluding untreated, asymptomatic, seasonal allergies at time of dosing).
• Any condition possibly affecting drug absorption (eg, gastrectomy).
• A positive urine drug screen.
• History of regular alcohol consumption exceeding 14 drinks/week for females or 21 drinks/week for males within 6 months of screening.
• Treatment with an investigational drug within 30 days (or as determined by the local requirement, whichever is longer) or 5 half-lives preceding the first dose of study medication.
• 12-lead ECG demonstrating QTc >450 msec at Screening.
• Pregnant or nursing females; females of childbearing potential, including those with tubal ligation.
• Use of prescription or nonprescription drugs and dietary supplements within 7 days or 5 half-lives (whichever is longer) prior to the first dose of study medication. Herbal supplements and hormone replacement therapy must be discontinued 28 days prior to the first dose of study medication.
• Other severe acute or chronic medical or psychiatric condition or laboratory abnormality that may increase the risk associated with study participation or investigational product administration or may interfere with the interpretation of study results and, in the judgment of the investigator, would make the subject inappropriate for entry into this study.
• A positive serology for Hepatitis B or Hepatitis C.
• Subjects who are currently smoking.

Study Plan

How is the study designed?

Design Details

• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: 1; Each subject will receive single oral and IV doses of crizotinib separated by at least 14 days.	Drug: crizotinib; Treatment A: Intravenous dose of 50 mg crizotinib will be administered as directed.; Drug: crizotinib; Treatment B: Oral dose of 250 mg crizotinib as 1 × 50-mg Immediate Release Tablet and 2 × 100-mg Immediate Release Tablets will be administered in the fasted state as directed.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Dose Normalized Area Under the Curve From Time Zero to Extrapolated Infinite Time (AUC [0 - ∞][dn])	AUC [0 - ∞][dn] = Dose normalized area under the plasma concentration versus time curve (AUC[dn]) from time zero (pre-dose) to extrapolated infinite time (0 - ∞). It is obtained from AUC (0 - ∞) divided by dose.	0 (pre-dose), 1, 2, 2.5, 3, 4, 6, 8, 12, 24, 36, 48, 72, 96, and 144 hours (hrs) post IV crizotinib dose in Treatment A and 0 (pre-dose), 1, 2, 4, 5, 6, 8, 10, 12, 24, 36, 48, 72, 96, and 144 hrs post oral crizotinib dose in Treatment B
Area Under the Curve From Time Zero to Extrapolated Infinite Time (AUC [0 - ∞])	AUC (0 - ∞) = Area under the plasma concentration versus time curve (AUC) from time zero (pre-dose) to extrapolated infinite time (0 - ∞). It is obtained from AUC (0 - t) plus AUC (t - ∞).	0 (pre-dose), 1, 2, 2.5, 3, 4, 6, 8, 12, 24, 36, 48, 72, 96, and 144 hrs post IV crizotinib dose in Treatment A and 0 (pre-dose), 1, 2, 4, 5, 6, 8, 10, 12, 24, 36, 48, 72, 96, and 144 hrs post oral crizotinib dose in Treatment B

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast)	Area under the plasma concentration time-curve from zero (pre-dose) to the last measured concentration (AUClast).	0 (pre-dose), 1, 2, 2.5, 3, 4, 6, 8, 12, 24, 36, 48, 72, 96, and 144 hrs post IV crizotinib dose in Treatment A and 0 (pre-dose), 1, 2, 4, 5, 6, 8, 10, 12, 24, 36, 48, 72, 96, and 144 hrs post oral crizotinib dose in Treatment B
Dose Normalized Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast[dn])	AUClast[dn] = Dose normalized area under the plasma concentration time-curve (AUC[dn]) from zero to the last measured concentration.	0 (pre-dose), 1, 2, 2.5, 3, 4, 6, 8, 12, 24, 36, 48, 72, 96, and 144 hrs post IV crizotinib dose in Treatment A and 0 (pre-dose), 1, 2, 4, 5, 6, 8, 10, 12, 24, 36, 48, 72, 96, and 144 hrs post oral crizotinib dose in Treatment B
Maximum Observed Plasma Concentration (Cmax)		0 (pre-dose), 1, 2, 2.5, 3, 4, 6, 8, 12, 24, 36, 48, 72, 96, and 144 hrs post IV crizotinib dose in Treatment A and 0 (pre-dose), 1, 2, 4, 5, 6, 8, 10, 12, 24, 36, 48, 72, 96, and 144 hrs post oral crizotinib dose in Treatment B
Time to Reach Maximum Observed Plasma Concentration (Tmax)		0 (pre-dose), 1, 2, 4, 5, 6, 8, 10, 12, 24, 36, 48, 72, 96, and 144 hrs post oral crizotinib dose in Treatment B
Plasma Decay Half Life (t1/2)	Plasma decay half life is the time measured for the plasma concentration to decrease by one half.	0 (pre-dose), 1, 2, 2.5, 3, 4, 6, 8, 12, 24, 36, 48, 72, 96, and 144 hrs post IV crizotinib dose in Treatment A and 0 (pre-dose), 1, 2, 4, 5, 6, 8, 10, 12, 24, 36, 48, 72, 96, and 144 hrs post oral crizotinib dose in Treatment B
Apparent Oral Clearance (CL/F)	Drug clearance is a quantitative measure of the rate at which a drug substance is removed from the body. Clearance obtained after oral dose (apparent oral clearance) is influenced by the fraction of the dose absorbed.	0 (pre-dose), 1, 2, 4, 5, 6, 8, 10, 12, 24, 36, 48, 72, 96, and 144 hrs post oral crizotinib dose in Treatment B
Systemic Clearance (CL)	CL is a quantitative measure of the rate at which a drug substance is removed from the body.	0 (pre-dose), 1, 2, 2.5, 3, 4, 6, 8, 12, 24, 36, 48, 72, 96, and 144 hrs post IV crizotinib dose in Treatment A
Apparent Volume of Distribution (Vz/F)	Volume of distribution is defined as the theoretical volume in which the total amount of drug would need to be uniformly distributed to produce the desired plasma concentration of a drug. Apparent volume of distribution after oral dose (Vz/F) is influenced by the fraction absorbed.	0 (pre-dose), 1, 2, 4, 5, 6, 8, 10, 12, 24, 36, 48, 72, 96, and 144 hrs post oral crizotinib dose in Treatment B
Volume of Distribution at Steady State (Vss)	Volume of distribution is defined as the theoretical volume in which the total amount of drug would need to be uniformly distributed to produce the desired blood concentration of a drug. Steady state volume of distribution (Vss) is the apparent volume of distribution at steady-state.	0 (pre-dose), 1, 2, 2.5, 3, 4, 6, 8, 12, 24, 36, 48, 72, 96, and 144 hrs post IV crizotinib dose in Treatment A
Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast) for Crizotinib Metabolite (PF-06260182)	Area under the plasma concentration time-curve from zero (pre-dose) to the last measured concentration (AUClast) of crizotinib metabolite (PF-06260182).	0 (pre-dose), 1, 2, 2.5, 3, 4, 6, 8, 12, 24, 36, 48, 72, 96, and 144 hrs post IV crizotinib dose in Treatment A and 0 (pre-dose), 1, 2, 4, 5, 6, 8, 10, 12, 24, 36, 48, 72, 96, and 144 hrs post oral crizotinib dose in Treatment B
Area Under the Curve From Time Zero to Extrapolated Infinite Time (AUC [0 - ∞]) for Crizotinib Metabolite (PF-06260182)	AUC (0 - ∞) = Area under the plasma concentration versus time curve (AUC) from time zero (pre-dose) to extrapolated infinite time (0 - ∞). It is obtained from AUC (0 - t) plus AUC (t - ∞) of crizotinib metabolite (PF-06260182).	0 (pre-dose), 1, 2, 4, 5, 6, 8, 10, 12, 24, 36, 48, 72, 96, and 144 hrs post oral crizotinib dose in Treatment B
Maximum Observed Plasma Concentration (Cmax) for Crizotinib Metabolite (PF-06260182)		0 (pre-dose), 1, 2, 2.5, 3, 4, 6, 8, 12, 24, 36, 48, 72, 96, and 144 hrs post IV crizotinib dose in Treatment A and 0 (pre-dose), 1, 2, 4, 5, 6, 8, 10, 12, 24, 36, 48, 72, 96, and 144 hrs post oral crizotinib dose in Treatment B
Time to Reach Maximum Observed Plasma Concentration (Tmax) for Crizotinib Metabolite (PF-06260182)		0 (pre-dose), 1, 2, 4, 5, 6, 8, 10, 12, 24, 36, 48, 72, 96, and 144 hrs post oral crizotinib dose in Treatment B
Metabolite to Parent Ratio of Area Under the Curve From Time Zero to Last Quantifiable Concentration for Crizotinib Metabolite Ratio (MRAUClast)	Molar ratio of metabolite to parent area under the plasma concentration time-curve from zero (pre-dose) to the last measured concentration (MRAUClast).	0 (pre-dose), 1, 2, 2.5, 3, 4, 6, 8, 12, 24, 36, 48, 72, 96, and 144 hrs post IV crizotinib dose in Treatment A and 0 (pre-dose), 1, 2, 4, 5, 6, 8, 10, 12, 24, 36, 48, 72, 96, and 144 hrs post oral crizotinib dose in Treatment B
Metabolite to Parent Ratio Area Under the Curve From Time Zero to Extrapolated Infinite Time (MRAUC [0-∞])	Molar ratio of metabolite to parent area under the plasma concentration versus time curve (AUC) from time zero (pre-dose) to extrapolated infinite time (0-∞) (MRAUC [0-∞]).	0 (pre-dose), 1, 2, 4, 5, 6, 8, 10, 12, 24, 36, 48, 72, 96, and 144 hrs post oral crizotinib dose in Treatment B
Metabolite to Parent Ratio Maximum Observed Plasma Concentration (MRCmax)	Metabolite to parent molar ratio of maximum observed plasma concentration (MRCmax).	0 (pre-dose), 1, 2, 2.5, 3, 4, 6, 8, 12, 24, 36, 48, 72, 96, and 144 hrs post IV crizotinib dose in Treatment A and 0 (pre-dose), 1, 2, 4, 5, 6, 8, 10, 12, 24, 36, 48, 72, 96, and 144 hrs post oral crizotinib dose in Treatment B

Collaborators and Investigators

• Sponsor: Pfizer

Publications and helpful links

Helpful Links

• To obtain contact information for a study center near you, click here.

Study record dates

Study Major Dates

• Study Start: August 1, 2010
• Primary Completion (Actual): September 1, 2010
• Study Completion (Actual): September 1, 2010

Study Registration Dates

• First Submitted: July 22, 2010
• First Submitted That Met QC Criteria: July 22, 2010
• First Posted (Estimate): July 23, 2010

Study Record Updates

• Last Update Posted (Estimate): October 24, 2011
• Last Update Submitted That Met QC Criteria: October 20, 2011
• Last Verified: October 1, 2011

More Information

Terms related to this study

• Keywords: pharmacokinetics; healthy volunteers; absolute bioavailability; crizotinib
• Additional Relevant MeSH Terms: Molecular Mechanisms of Pharmacological Action; Enzyme Inhibitors; Antineoplastic Agents; Protein Kinase Inhibitors; Crizotinib
• Other Study ID Numbers: A8081010