Skip to content
Triangle logo TriangleGet started
← Full study record

NCT00717366 · OUTCOME

Apparent Terminal Phase Half-Life (t1/2) of MIRCERA

Study to Determine Optimum Intravenous Starting Dose of MIRCERA for Treatment of Pediatric Participants With Anemia and Chronic Kidney Disease on Hemodialysis · Source last updated 2017-09-08

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

Measure
GEOMETRIC_MEAN
Unit
hours
Interval / dispersion
Geometric Coefficient of Variation
Time frame
Pre-dose (with 1 hour before drug administration) and 2, 48 hours post dose on Week 9, at Weeks 10, 11, and 12, pre-dose (with 1 hour before drug administration) on Week 13

What was measured

t1/2 was defined as the time (in hours) measured (from all sample collection timepoints \[as provided in timeframe\]) for the serum concentration to decrease by one half. The t1/2 was calculated as natural logarithm of 2 divided by λz; where λz = terminal elimination rate constant.

Analysis population: PK evaluable population. Number of participants analyzed = participants evaluable for t1/2 assessments.

Groups in this outcome

MIRCERA Group 1: Intermediate-Conversion-Factor Group

Participants received MIRCERA IV injection at a starting dose based on an intermediate conversion factor from their previous ESA dose (4 \* previous weekly epoetin dose \[IU\]/250 or 4 \* previous weekly darbepoetin alfa dose \[mcg\]/1.1) once every 4 weeks for 20 weeks. Participants who completed the 20 weeks of treatment and had Hb level within ± 1 g/dL of their baseline Hb level and within the target range of 10-12 g/dL, entered an optional 52-weeks safety extension period. During this period, the participants continued to receive MIRCERA IV injection once every 4 weeks.

MIRCERA Group 2: High-Conversion-Factor Group

Participants received MIRCERA IV injection based on a high conversion factor from their previous ESA dose (4 \* previous weekly epoetin dose \[IU\]/125 or 4 \* previous weekly darbepoetin alfa dose \[mcg\]/0.55) once every 4 weeks for 20 weeks. Participants who completed the 20 weeks of treatment and had Hb level within ± 1 g/dL of their baseline Hb level and within the target range of 10-12 g/dL, entered an optional 52-weeks safety extension period. During this period, the participants continued to receive MIRCERA IV injection once every 4 weeks.

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

Analysis denominator · Participants

GroupSource count
MIRCERA Group 1: Intermediate-Conversion-Factor Group11
MIRCERA Group 2: High-Conversion-Factor Group32

Reported measurements

Source class 1
Values in hours · Interval/dispersion: Geometric Coefficient of Variation
GroupValueSpreadLowerUpperComment
MIRCERA Group 1: Intermediate-Conversion-Factor Group14730.1Not reportedNot reportedNot reported
MIRCERA Group 2: High-Conversion-Factor Group12143.5Not reportedNot reportedNot reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        spread
        30.1
        value
        147
      2. group Id
        OG001
        spread
        43.5
        value
        121
denoms
  1. counts
    1. group Id
      OG000
      value
      11
    2. group Id
      OG001
      value
      32
    units
    Participants
description
t1/2 was defined as the time (in hours) measured (from all sample collection timepoints \[as provided in timeframe\]) for the serum concentration to decrease by one half. The t1/2 was calculated as natural logarithm of 2 divided by λz; where λz = terminal elimination rate constant.
dispersion Type
Geometric Coefficient of Variation
groups
  1. description
    Participants received MIRCERA IV injection at a starting dose based on an intermediate conversion factor from their previous ESA dose (4 \* previous weekly epoetin dose \[IU\]/250 or 4 \* previous weekly darbepoetin alfa dose \[mcg\]/1.1) once every 4 weeks for 20 weeks. Participants who completed the 20 weeks of treatment and had Hb level within ± 1 g/dL of their baseline Hb level and within the target range of 10-12 g/dL, entered an optional 52-weeks safety extension period. During this period, the participants continued to receive MIRCERA IV injection once every 4 weeks.
    id
    OG000
    title
    MIRCERA Group 1: Intermediate-Conversion-Factor Group
  2. description
    Participants received MIRCERA IV injection based on a high conversion factor from their previous ESA dose (4 \* previous weekly epoetin dose \[IU\]/125 or 4 \* previous weekly darbepoetin alfa dose \[mcg\]/0.55) once every 4 weeks for 20 weeks. Participants who completed the 20 weeks of treatment and had Hb level within ± 1 g/dL of their baseline Hb level and within the target range of 10-12 g/dL, entered an optional 52-weeks safety extension period. During this period, the participants continued to receive MIRCERA IV injection once every 4 weeks.
    id
    OG001
    title
    MIRCERA Group 2: High-Conversion-Factor Group
param Type
GEOMETRIC_MEAN
population Description
PK evaluable population. Number of participants analyzed = participants evaluable for t1/2 assessments.
reporting Status
POSTED
time Frame
Pre-dose (with 1 hour before drug administration) and 2, 48 hours post dose on Week 9, at Weeks 10, 11, and 12, pre-dose (with 1 hour before drug administration) on Week 13
title
Apparent Terminal Phase Half-Life (t1/2) of MIRCERA
type
SECONDARY
unit Of Measure
hours

Download exact source JSON → · Snapshot ctgov-results-191f4516d4760045304b24a0

Preserved source evidence · Not medical advice