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CompletedNCT02083640Updated Jun 4, 2014

Relative Bioavailability For Palbociclib Formulations

A Phase 1 interventional study of Palbociclib Formulation Reference and Palbociclib Formulation Test in Healthy, sponsored by Pfizer. Completed at 1 site in United States. Open to participants aged 18 Years to 55 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2014-06-04.

Sponsored by Pfizer · Phase 1, Interventional, and Basic science

Phase
Phase 1
Study type
Interventional
Enrollment
30
Allocation
Randomized
Ages
18 Years to 55 Years
Sex
All
01

Study summary

This study is to assess the relative bioavailability of palbociclib hard gelatin capsule formulation (API 41 micrometer and dissolution Level 1) and palbociclib hard gelatin capsule formulation (API 16 micrometer and dissolution Level 2) compared to the palbociclib hard gelatin capsule formulation (API 16 micrometer and dissolution Level 1) after single 125 mg oral doses under fed conditions in healthy volunteers.

02

Conditions studied

  • Healthy

Keywords

  • healthy volunteer
  • bioavailability
  • palbociclib
  • formulation
03

In context

Lead sponsor

Pfizer is the lead sponsor of 3,244 studies on the registry; 139 are open to participants now.

Of its 582 completed or terminated interventional studies of FDA-regulated products, 381 (65%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 55 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Healthy male subjects and/or female subjects with no physical possibility of getting pregnant.
  • Evidence of a personally signed and dated informed consent document indicating that the subject (or a legal representative) 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

Exclusion Criteria:

  • Evidence or history of clinically significant hematological, renal, endocrine, pulmonary, gastrointestinal, cardiovascular, hepatic, psychiatric, neurologic, or allergic disease.
  • Any condition possibly affecting drug absorption (eg, gastrectomy).
  • A positive urine drug screen.
  • History of regular alcohol consumption exceeding 7 drinks/week for females or 14 drinks/week for males (1 drink = 5 ounces (150 mL) of wine or 12 ounces (360 mL) of beer or 1.5 ounces (45 mL) of hard liquor) within 6 months of Screening.
  • Treatment with an investigational drug within 30 days (or as determined by the local requirement, whichever is longer) preceding the first dose of study medication.
  • Pregnant females; breastfeeding females; females with physical possibility of getting pregnant .
05

Study design

Phase
Phase 1
Primary purpose
Basic science
Allocation
Randomized
Intervention model
Crossover assignment
Masking
None (open label)
Enrollment
30 participants (actual)

Study arms

  • Other
    Treatment A (Reference)

    Drug: Palbociclib Formulation Reference

  • Other
    Treatment B (Test)

    Drug: Palbociclib Formulation Test

  • Other
    Treatment C (Test)

    Drug: Palbociclib Formulation Test

Interventions

  • DrugPalbociclib Formulation Reference

    125 mg single dose of palbociclib formulation with 16 micrometer API particle size and dissolution level 1, which is representative of the intended commercial hard gelatin capsule.

  • DrugPalbociclib Formulation Test

    125 mg single dose of palbociclib formulation with 41 micrometer API particle size and dissolution level 1

  • DrugPalbociclib Formulation Test

    125 mg single dose of palbociclib formulation with 16 micrometer API particle size and dissolution level 2

06

What researchers measure

Primary outcomes

  1. Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - 8)]

    AUC (0 - 8)= Area under the plasma concentration versus time curve (AUC) from time zero (pre-dose) to extrapolated infinite time (0 - 8). It is obtained from AUC (0 - t) plus AUC (t - 8).

    Time frame: 6 days

  2. Maximum Observed Plasma Concentration (Cmax)

    Time frame: 6 days

Secondary outcomes

  1. Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast)

    Area under the plasma concentration time-curve from zero to the last measured concentration (AUClast)

    Time frame: 6 days

  2. Apparent Oral Clearance (CL/F)

    Clearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. Clearance obtained after oral dose (apparent oral clearance) is influenced by the fraction of the dose absorbed. Clearance was estimated from population pharmacokinetic (PK) modeling. Drug clearance is a quantitative measure of the rate at which a drug substance is removed from the blood.

    Time frame: 6 days

  3. Time to Reach Maximum Observed Plasma Concentration (Tmax)

    Time frame: 2 Days

  4. 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.

    Time frame: 6 days

  5. Plasma Decay Half-Life (t1/2)

    Plasma decay half-life is the time measured for the plasma concentration to decrease by one half.

    Time frame: 6 days

07

Study locations

1 site
  • Pfizer Investigational Site
    New Haven, Connecticut 06511, United States
08

References and documents

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 4, 2014, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02083640
Lead sponsor
Pfizer
Responsible party
Sponsor
First posted
Mar 11, 2014
Start date
Mar 2014
Primary completion
May 2014
Completion
May 2014
Last update
Jun 4, 2014

Study contacts

Pfizer CT.gov Call Center
study director · Pfizer

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Jun 2014. You cannot join it, but the record below documents what was studied.

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