Glasdegib Absolute Bioavailability Study

Pfizer

Status and phase: Completed; Phase 1

Conditions: Healthy Volunteer Study

Treatments: Drug: Glasdegib Oral Tablet; Drug: Glasdegib IV infusion

Study type: Interventional

Funder types: Industry

Identifiers

NCT03270878

B1371022

Details and patient eligibility

About

This study is intended to estimate the absolute bioavailability of Glasdegib by comparison of the pharmacokinetic exposures following administration of an oral, single dose 100 mg tablet vs. an IV infusion of a 50 mg IV dose in the fasted state in a crossover fashion to healthy volunteers.

Enrollment: 12 patients

Sex: All

Ages: 18 to 55 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Inclusion Criteria:

• Healthy male and/or female subjects of non-child bearing potential who, at the time of screening, are 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 or clinical laboratory tests. Female subjects of nonchildbearing potential must meet at least 1 of the following criteria:

  1. Achieved postmenopausal status, defined as follows: cessation of regular menses for at least 24 consecutive months with no alternative pathological or physiological cause; with a serum follicle-stimulating hormone (FSH) level confirming the postmenopausal state;
  2. Have undergone a documented hysterectomy and/or bilateral oophorectomy;
  3. Have medically confirmed ovarian failure. All other female subjects (including females with tubal ligations and females that do NOT have a documented hysterectomy, bilateral oophorectomy and/or ovarian failure) are considered to be of childbearing potential.

• Body mass index (BMI) of 17.5 to 30.5 kg/m2; and a total body weight >50 kg (110 lb).

• Evidence of a personally signed and dated informed consent document indicating that the subject has been informed of all pertinent aspects of the study. -. Subjects who are willing and able to comply with all scheduled visits, treatment plan, laboratory tests, and other study procedures.

Exclusion criteria

• -A positive urine drug test.
• Screening supine 12-lead ECG demonstrating a corrected QT (QTc) interval >450 msec or a QRS interval >120 msec. If QTc exceeds 450 msec, or QRS exceeds 120 msec, the ECG should be repeated 2 more times and the average of the 3 QTc or QRS values should be used to determine the subject's eligibility.
• Subjects with family history of myocardial infarction, congenital long QT syndrome, torsades de pointes or clinically significant ventricular arrhythmias. Subjects should be within normal range of potassium, magnesium and corrected calcium calculation at screening.
• Pregnant female subjects; breastfeeding female subjects; female subjects of childbearing potential; male subjects with partners currently pregnant; male subjects who are unwilling or unable to use two highly effective methods of contraception as outlined in this protocol for the duration of the study and for at least 90 days after the last dose of investigational product and, refrain from sperm donation for the duration of the Study and for at least 90 days after the last dose of investigational product.

Trial design

Primary purpose: Basic Science

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: None (Open label)

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12 participants in 2 patient groups

Glasdegib Oral tablet then IV

Experimental group

Description:

Subjects will receive a single 100 mg oral tablet of glasdegib under fasted conditions in the first study period followed by washout. Then in the second period, a 50 mg IV solution will be infused over approximately 1.25 hours under fasted conditions.

Treatment:

Drug: Glasdegib IV infusion

Drug: Glasdegib Oral Tablet

Glasdegib IV solution followed by Oral tablet

Experimental group

Description:

Subjects will receive a 50 mg IV solution will be infused over approximately 1.25 hours in the fasted condition followed by washout in the first study period . Then in the second period, a single 100 mg oral tablet of glasdegib will be administered under fasted conditions

Treatment:

Drug: Glasdegib IV infusion

Drug: Glasdegib Oral Tablet