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Completed

NCT Number: NCT03351751

A Study to Evaluate the Safety, Tolerability, and Pharmacokinetics of Repeat Doses of PF-06372865 in Healthy Subjects

The purpose of this study is to evaluate the safety, tolerability, and pharmacokinetics of multiple repeat oral doses of PF-06372865 in healthy adult subjects.

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Key information

Conditions

Healthy Volunteers

Age range

18 year–55 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 1

Primary location

Pfizer New Haven Clinical Research Unit

New Haven, Connecticut, 06511, United States

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Healthy female subjects of non-childbearing potential and/or male subjects between the ages of 18 and 55 years
  • Body mass index of 17.5 to 30.5 kg/m2; and a total body weight >50 kg (110 lb)
  • Subjects who are willing and able to comply with all study procedures (including being able to swallow up to 8 tablets/dose or 16 tablets/day)
  • For optional Japanese subjects only: Japanese subjects currently residing in the United States who have 4 biologic Japanese grandparents born in Japan

Exclusion criteria

  • Evidence or history of clinically significant hematological, renal, endocrine, pulmonary, gastrointestinal, cardiovascular, hepatic, psychiatric, neurologic, or allergic disease
  • Subjects with history of sleep apnea
  • Any condition possibly affecting drug absorption (eg, gastrectomy)
  • Positive urine drug test
  • History of regular alcohol consumption exceeding 7 drinks/week for females or 14 drinks/week for males
  • Treatment with an investigational drug within 30 days or 5 half-lives of the first dose of PF-06372865 (whichever is longer)
  • Clinically significant orthostatic hypotension at screening or screening supine BP >=140 mm Hg (systolic) or >=90 mm Hg (diastolic), following at least 5 minutes of supine rest
  • Screening supine 12-lead ECG demonstrating a corrected QT (QTc) interval >450 msec or a QRS interval >120 msec
  • Subjects with any of the following abnormalities in clinical laboratory tests at screening: aspartate aminotransferase (AST) or alanine aminotransferase (ALT) level >=1.5x upper limit of normal (ULN); total bilirubin level >=1.5x ULN; subjects with a history of Gilbert's syndrome may have direct bilirubin measured and would be eligible for this study provided the direct bilirubin level is <=ULN
  • Fertile male subjects who are unwilling or unable to use a highly effective method of contraception for the duration of the study and for at least 60 days after the last dose of PF-06372865
  • Male subjects whose partners are currently pregnant
  • 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 PF-06372865
  • Use of herbal supplements or hormone replacement therapy within 28 days prior to the first dose of PF-06372865
  • Blood donation of approximately 1 pint (500 mL) or more within 60 days prior to dosing
  • History of sensitivity to heparin or heparin-induced thrombocytopenia
  • History of human immunodeficiency virus (HIV), hepatitis B, or hepatitis C; positive testing for HIV, hepatitis B surface antigen, hepatitis B core antibody, or hepatitis C antibody
  • Other acute or chronic medical or psychiatric condition including recent or active suicidal ideation or behavior or laboratory abnormality that may increase the risk associated with study participation or PF-06372865 administration or may interfere with the interpretation of study results
  • Subjects with active suicidal ideations or suicidal behavior within 5 years prior to screening
  • Subjects with history of cyclic neutropenia.
  • Subjects with known history of hypersensitivity to benzodiazepines, or for whom benzodiazepines would be contraindicated
  • Subjects who have previously been exposed to, or participated in a study with, PF-06372865
  • Subjects with folate deficiency
  • Subjects who have had an X-ray within 4 weeks prior to screening

Treatment and study plan

Placebo

Drug

Placebo

PF-06372865

Drug

PF-06372865

Primary outcomes

  1. Number of Participants With Treatment Emergent Treatment-Related Adverse Events (AEs)

    Time frame: Baseline up to 28-35 days after last dose of study medication

    Treatment-related AEs are any untoward medical occurrences attributed to study drug in a participant who received study drug. A serious adverse events (SAE) is an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. Treatment-emergent are events between first dose of study drug and up to 28-35 days after last dose that were absent before treatment or that worsened relative to pretreatment state. Relatedness to study drug is assessed by the investigator. Participants with multiple occurrences of an AE within a category are counted once within the category.

  2. Change From Baseline in Vital Signs

    Time frame: 0, 1, 2, 4, 8, and 12 hours post-dose on Days 1 and 21; also 0 and 2 hours post-dose on Days 4, 8, 11, 14, and 17

    Measurement of systolic and diastolic blood pressure and pulse rate

  3. Change From Baseline in Electrocardiogram (ECG) Parameters

    Time frame: 0, 1, 2, 4, 8, and 12 hours post-dose on Days 1 and 21; also 0 and 2 hours post-dose on Days 4, 8, 11, 14, and 17

    Measurement of the following ECG parameters: QT interval, QTcF, PR interval, RR interval, QRS interval, and heart rate.

  4. Number of Participants With Clinical Laboratory Abnormalities

    Time frame: Baseline up to 7-10 days after last dose of study medication

    Lab tests include: hematology (hemoglobin, hematocrit, red blood cell count, platelet count, white blood cell count, total neutrophils, eosinophils, monocytes, basophils, lymphocytes); blood chemistry (blood urea nitrogen, creatinine, glucose, calcium, sodium, potassium, chloride, total bicarbonate, aspartate aminotransferase, alanine aminotransferase, total bilirubin, alkaline phosphatase, uric acid albumin, total protein, folate); urinalysis (decimal logarithm of reciprocal of hydrogen ion activity [pH], glucose, protein, blood, ketones, nitrites, leukocyte esterase, urobilinogen, urine bilirubin, microscopy); other (follicle stimulating hormone, urine drug screening, hepatitis B surface antigen, hepatitis B core antibody, hepatitis C antibody, human immunodeficiency virus).

  5. Maximum Observed Plasma Concentration (Cmax) for PF-06372865 on Day 1

    Time frame: 0, 0.5, 1, 1.5, 2, 4, 6, 8, and 12 hours post-dose

    Maximum observed plasma concentration

  6. Time to Reach Maximum Observed Plasma Concentration (Tmax) of PF-06372865 on Day 1

    Time frame: 0, 0.5, 1, 1.5, 2, 4, 6, 8, and 12 hours post-dose

    Time to reach maximum observed plasma concentration

  7. Area Under the Curve From Time Zero to End of Dosing Interval (AUCtau) for PF-06372865 on Day 1

    Time frame: 0, 0.5, 1, 1.5, 2, 4, 6, 8, and 12 hours post-dose

    Area under the concentration curve from time 0 to end of the dosing interval. The dosing interval is 12 hours.

  8. Maximum Observed Plasma Concentration (Cmax) for PF-06372865 on Day 21

    Time frame: 0, 0.5, 1, 1.5, 2, 4, 6, 8, and 12 hours post-dose

    Maximum observed plasma concentration

  9. Time to Reach Maximum Observed Plasma Concentration (Tmax) of PF-06372865 on Day 21

    Time frame: 0, 0.5, 1, 1.5, 2, 4, 6, 8, and 12 hours post-dose

    Time to reach maximum observed plasma concentration

  10. Area Under the Curve From Time Zero to End of Dosing Interval (AUCtau) for PF-06372865 on Day 21

    Time frame: 0, 0.5, 1, 1.5, 2, 4, 6, 8, and 12 hours post-dose

    Area under the concentration curve from time 0 to end of the dosing interval. The dosing interval is 12 hours.

  11. Plasma Half-Life (t1/2)

    Time frame: 0, 0.5, 1, 1.5, 2, 4, 6, 8, 12, 24, 48, and 72 hours post-dose on Day 21

    Time for the plasma concentration to decrease by one half.

Sponsors and collaborators

Lead sponsor

Pfizer

Industry

Registry information

Official study title

A PHASE 1, DOUBLE-BLIND (3RD PARTY OPEN), RANDOMIZED, PLACEBO-CONTROLLED, DOSE ESCALATION STUDY TO INVESTIGATE THE SAFETY, TOLERABILITY, AND PHARMACOKINETICS OF REPEAT ORAL DOSES OF PF-06372865 IN HEALTHY ADULT SUBJECTS

Important dates

Study start
2017
Primary completion
2018
Study completion
2018
First posted
Nov 24, 2017
Registry last updated
Jun 3, 2019

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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