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NCT02255461 · OUTCOME

Steady State Elimination Rate Constant (Ke)

Palbociclib Isethionate in Treating Younger Patients With Recurrent, Progressive, or Refractory Central Nervous System Tumors · Source last updated 2021-03-02

Results reported by the registry submitting party. Population, time horizon, units and missing values must be read together.

Measure
MEDIAN
Unit
per hour
Interval / dispersion
Full Range
Time frame
Up to day 22

What was measured

On day 21 of course 1, series blood samples for palbociclib pharmacokinetic studies were collected at pre-dose, 1, 2, 4, 8 (±1), 10 (±0.5) optional, and 24 (±4) hours after the dose. Elimination rate constant (Ke) was estimated using a non-compartmental method.

Analysis population: Patients with blood samples collected for pharmacokinetic studies on days 21-22 of course 1 were included.

Groups in this outcome

Stratum I, Dose Level 1 (50 mg/m2)

Less-heavily pre-treated patients received oral palbociclib daily at 50 mg/m2/day for 21 days followed by a week rest (one course = 28 days) for up to 26 courses in the absence of disease progression or unacceptable toxicity.

Stratum I, Dose Level 2 (75 mg/m2)

Less-heavily pre-treated patients received oral palbociclib daily at 75 mg/m2/day for 21 days followed by a week rest (one course = 28 days) for up to 26 courses in the absence of disease progression or unacceptable toxicity.

Stratum I, Dose Level 3 (95 mg/m2)

Less-heavily pre-treated patients received oral palbociclib daily at 95 mg/m2/day for 21 days followed by a week rest (one course = 28 days) for up to 26 courses in the absence of disease progression or unacceptable toxicity.

Stratum II, Dose Level 1 (50 mg/m2)

Heavily pre-treated patients received oral palbociclib daily at 50 mg/m2/day for 21 days followed by a week rest (one course = 28 days) for up to 26 courses in the absence of disease progression or unacceptable toxicity.

Stratum II, Dose Level 2 (75mg/m2)

Heavily pre-treated patients received oral palbociclib daily at 75 mg/m2/day for 21 days followed by a week rest (one course = 28 days) for up to 26 courses in the absence of disease progression or unacceptable toxicity.

Group identifiers and denominators belong to this outcome only. They may differ in another outcome or in safety reporting.

Analysis denominator · Participants

GroupSource count
Stratum I, Dose Level 1 (50 mg/m2)2
Stratum I, Dose Level 2 (75 mg/m2)10
Stratum I, Dose Level 3 (95 mg/m2)3
Stratum II, Dose Level 1 (50 mg/m2)4
Stratum II, Dose Level 2 (75mg/m2)8

Reported measurements

Source class 1
Values in per hour · Interval/dispersion: Full Range
GroupValueSpreadLowerUpperComment
Stratum I, Dose Level 1 (50 mg/m2)0.052Not reported0.0410.066Not reported
Stratum I, Dose Level 2 (75 mg/m2)0.050Not reported0.0170.110Not reported
Stratum I, Dose Level 3 (95 mg/m2)0.062Not reported0.0540.071Not reported
Stratum II, Dose Level 1 (50 mg/m2)0.032Not reported0.0240.049Not reported
Stratum II, Dose Level 2 (75mg/m2)0.039Not reported0.0320.074Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        0.041
        upper Limit
        0.066
        value
        0.052
      2. group Id
        OG001
        lower Limit
        0.017
        upper Limit
        0.110
        value
        0.050
      3. group Id
        OG002
        lower Limit
        0.054
        upper Limit
        0.071
        value
        0.062
      4. group Id
        OG003
        lower Limit
        0.024
        upper Limit
        0.049
        value
        0.032
      5. group Id
        OG004
        lower Limit
        0.032
        upper Limit
        0.074
        value
        0.039
denoms
  1. counts
    1. group Id
      OG000
      value
      2
    2. group Id
      OG001
      value
      10
    3. group Id
      OG002
      value
      3
    4. group Id
      OG003
      value
      4
    5. group Id
      OG004
      value
      8
    units
    Participants
description
On day 21 of course 1, series blood samples for palbociclib pharmacokinetic studies were collected at pre-dose, 1, 2, 4, 8 (±1), 10 (±0.5) optional, and 24 (±4) hours after the dose. Elimination rate constant (Ke) was estimated using a non-compartmental method.
dispersion Type
Full Range
groups
  1. description
    Less-heavily pre-treated patients received oral palbociclib daily at 50 mg/m2/day for 21 days followed by a week rest (one course = 28 days) for up to 26 courses in the absence of disease progression or unacceptable toxicity.
    id
    OG000
    title
    Stratum I, Dose Level 1 (50 mg/m2)
  2. description
    Less-heavily pre-treated patients received oral palbociclib daily at 75 mg/m2/day for 21 days followed by a week rest (one course = 28 days) for up to 26 courses in the absence of disease progression or unacceptable toxicity.
    id
    OG001
    title
    Stratum I, Dose Level 2 (75 mg/m2)
  3. description
    Less-heavily pre-treated patients received oral palbociclib daily at 95 mg/m2/day for 21 days followed by a week rest (one course = 28 days) for up to 26 courses in the absence of disease progression or unacceptable toxicity.
    id
    OG002
    title
    Stratum I, Dose Level 3 (95 mg/m2)
  4. description
    Heavily pre-treated patients received oral palbociclib daily at 50 mg/m2/day for 21 days followed by a week rest (one course = 28 days) for up to 26 courses in the absence of disease progression or unacceptable toxicity.
    id
    OG003
    title
    Stratum II, Dose Level 1 (50 mg/m2)
  5. description
    Heavily pre-treated patients received oral palbociclib daily at 75 mg/m2/day for 21 days followed by a week rest (one course = 28 days) for up to 26 courses in the absence of disease progression or unacceptable toxicity.
    id
    OG004
    title
    Stratum II, Dose Level 2 (75mg/m2)
param Type
MEDIAN
population Description
Patients with blood samples collected for pharmacokinetic studies on days 21-22 of course 1 were included.
reporting Status
POSTED
time Frame
Up to day 22
title
Steady State Elimination Rate Constant (Ke)
type
PRIMARY
unit Of Measure
per hour

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Preserved source evidence · Not medical advice