Study of the Pharmacokinetics and Pharmacodynamics of Crystalline PX-866 Tablets and Amorphous PX-866 Capsules in Healthy Volunteers

NCT01408316 | Completed Phase 1

• 1 other identifier: PX-866-006
• Study Type: interventional
• Target: 39
• Locations: 1 country
• Sites: 1

Brief Summary

This is a two part study designed to evaluate the PK profile of PX-866 capsules versus tablets, and to evaluate the effect of food on the PK of PX-866 tablets only in healthy volunteers.

Conditions

Healthy Volunteer

Keywords

Healthy Volunteer; PX-866; PI3K Inhibitor

Outcome Measures

Primary Outcomes (1)

• Pharmacokinetics - Cmax, Tmax, AUC, and T1/2 of plasma concentrations of PX-866 and PX-866 metabolites

  Part 1: To evaluate and compare the pharmacokinetic (PK) profiles (of PX 866 and metabolites) after administration of crystalline PX 866 tablets and amorphous PX 866 capsules. Part 2: To evaluate the effect of food on the PK profile of crystalline PX 866 tablets.

  9 days

Secondary Outcomes (1)

• Incidence and severity of adverse events, vital signs, clinical laboratory, and ECG changes or abnormalities

  16 days

Study Arms (2)

Part 1 (Crystalline vs. Amorphous)

EXPERIMENTAL

Volunteers in part 1 of the study will initially receive either crystalline PX-866 tablets or amorphous PX-866 capsules, then after seven days, the same volunteers will respectively cross-over to receive the alternate amorphous PX-866 capsules or crystalline PX-866 tablets.

Drug: PX-866

Part 2 (Crystalline Food Effect)

EXPERIMENTAL

Volunteers in part 2 of the study will receive two single dose treatments of PX-866 crystalline tablets initially administered in either fed or fasted state, then after at least seven days, the same volunteers will respectively cross-over to receive PX-866 tablets in the alternate fed or fasted state.

Drug: PX-866

Interventions

PX-866 DRUG

Volunteers in part 1 of the study will receive two single dose 8 mg treatments of PX-866 (one each of crystalline PX-866 tablets and amorphous PX-866 capsules) in Periods A and B, separated by at least seven days. Volunteers in part 2 of the study will receive two single dose 6 mg treatments of PX-866 (crystalline PX-866 tablets administered in either fed or fasted state), in Periods C and D, separated by at least seven days.

Part 1 (Crystalline vs. Amorphous); Part 2 (Crystalline Food Effect)

Eligibility Criteria

• Age: 18 Years - 65 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Between 18 and 65 years of age (inclusive
• Able to communicate well with study staff and to read, understand, sign and date the written informed consent form (ICF) for this study.
• Must be willing to use double barrier contraception until 90 days after last dose of study drug.
• If female and of child bearing potential, volunteer must have a negative serum pregnancy test at screening and on Day 1 or Day 1.
• Body mass index (BMI) is between 18 and 32 kg/m2 (inclusive) at screening.
• Judged by the investigator to be in good health for the purposes of this study, based on results of medical history, physical examination, ECG and laboratory testing which show no major or clinically significant findings at pre dose on Day 1.
• Has normal hepatobiliary enzyme and bilirubin (total and conjugated) results on Day 1 and/or on Day 1.
• Has normal hemoglobin, hematocrit, absolute neutrophil count, absolute lymphocyte count and platelet count on Day 1 or Day 1.
• Blood pressure is between 95 and 140 mm Hg (inclusive) systolic, 50 to 90 mm Hg (inclusive) diastolic, and pulse rate (determined by vital signs measurement) is between 40 and 100 beats per minute (inclusive) at screening and pre dose on Day 1.
• Ability and intent to comply with all requirements of the study.
• Signed ICF prior to the conduct of any study procedure.

You may not qualify if:

• History of any illness or condition that, in the opinion of the investigator, may compromise the integrity of the study data or pose a significant risk in administering study drug to the subject. This may include but is not limited to a history of relevant drug allergies; history of cardiovascular or central nervous system disease; history or presence of clinically significant pathology; or history of mental illness.
• Use of prescription medication (with systemic exposure) within 14 days prior to Day 1, or likelihood of needing to use such medication during the course of study participation.
• Use of over the counter products with systemic exposure (e.g., oral medications, herbal preparations, dietary supplements - excepting acetaminophen at less than two gm per day and vitamin supplements at or near recommended daily allowances) within 7 days prior to Day 1, or likelihood of needing to use such products during the course of study participation.
• Use of any known inhibitors or inducers of CYP3A4, (e.g., St. John's Wort, ginkgo biloba, garlic supplements, grapefruit or grapefruit juice, apple juice, or orange juice) within 7 days prior to Day 1.
• Typically consumes more than two units of alcoholic beverages per day or more than 14 units per week (one unit of alcohol being one pint \[568 mL\] of beer or lager, one glass \[125 mL\] of wine, one 25 mL shot of 40% spirits).
• Has consumed alcohol within 72 hours prior to dosing on Day 1.
• Typically consumes more than five 8 ounce servings per day of coffee, cola, or other caffeinated beverages or products with similar amounts of caffeine.
• Has consumed caffeinated beverages or products within 48 hours prior to Day 1 dosing.
• Has history of drug or alcohol abuse or addiction (by DSM IV criteria) within 2 years prior to Day 1.
• Has used tobacco or other nicotine containing product within 6 months prior to Day 1.
• Has positive urine drug screen for opiates, methadone, cannabinoids, cocaine, amphetamines/methamphetamines, barbiturates, benzodiazepines, cotinine or alcohol at the screening visit or on Day 1.
• Has participated in a clinical study involving administration of either an investigational or a marketed drug within 30 days or 5 half lives (whichever is longer) prior to Day 1.
• Has been dosed with PX 866 previously.
• Has donated blood or had a significant loss of blood within 56 days prior to Day 1 or has donated more than one unit of plasma within 7 days prior to Day 1.
• Has a positive result at screening for hepatitis B antigen, hepatitis C virus antibody, human immunodeficiency virus 1 antibody or human immunodeficiency virus 2 antibody.

Sponsors & Collaborators

• Cascadian Therapeutics Inc.: lead

Study Sites (1)

Comprehensive Clinical Development NW

Tacoma, Washington, 98418, United States

Location

MeSH Terms

Interventions

PX-866

Study Officials

• Howard Quint, MD

  Comprehensive Clinical Development NW

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: phase 1
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: CROSSOVER
• Sponsor Type: INDUSTRY
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: July 27, 2011
• First Posted: August 3, 2011
• Study Start: July 1, 2011
• Primary Completion: October 1, 2011
• Study Completion: January 1, 2012
• Last Updated: May 17, 2018

Record last verified: 2012-03

Locations

US (1)