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NCT01578707 · OUTCOME

OS (Overall Survival)

A Phase 3 Study of Ibrutinib (PCI-32765) Versus Ofatumumab in Patients With Relapsed or Refractory Chronic Lymphocytic Leukemia · Source last updated 2019-12-18

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

Measure
MEDIAN
Unit
months
Interval / dispersion
95% Confidence Interval
Time frame
OS analysis was conducted at the time of study closure, including up to 6 years of study follow-up

What was measured

OS analysis was conducted at the time of study closure, with no adjustment for crossover from the ofatumumab arm to the ibrutinib arm

Groups in this outcome

Ofatumumab (Arm A)

An anti-CD20 monoclonal antibody ofatumumab: The ofatumumab (IV) dosage and schedule is 12 doses administered over 24 weeks or until disease progression, unacceptable toxicity. Week 1: 300 mg initial dose Week 2 through 8: 2,000 mg (once weekly) Week 12, 16, 20 and 24: 2,000 mg (every 4 weeks)

Ibrutinib (Arm B)

A Bruton Tyrosine Kinase Inhibitor ibrutinib: ibrutinib 420 mg (3 x 140-mg capsules) will be administered orally once daily until 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
Ofatumumab (Arm A)196
Ibrutinib (Arm B)195

Reported measurements

Source class 1
Values in months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Ofatumumab (Arm A)65.1Not reported50.6NAOFA: Upper limit of 95% CI for median OS is not estimable due to sparse events in the data / insufficient number of participants with events.
Ibrutinib (Arm B)67.7Not reported61.0NAIBR: Upper limit of 95% CI for median OS is not estimable due to sparse events in the data / insufficient number of participants with events.

Source statistical analyses

Group order, estimate direction, methods and comments are retained. No treatment ranking is inferred.

  1. group Ids
    1. OG000
    non Inferiority Type
    SUPERIORITY_OR_OTHER_LEGACY
    p Value
    0.1653
    statistical Method
    Log Rank
Complete source fields
analyses
  1. group Ids
    1. OG000
    non Inferiority Type
    SUPERIORITY_OR_OTHER_LEGACY
    p Value
    0.1653
    statistical Method
    Log Rank
classes
  1. categories
    1. measurements
      1. comment
        OFA: Upper limit of 95% CI for median OS is not estimable due to sparse events in the data / insufficient number of participants with events.
        group Id
        OG000
        lower Limit
        50.6
        upper Limit
        NA
        value
        65.1
      2. comment
        IBR: Upper limit of 95% CI for median OS is not estimable due to sparse events in the data / insufficient number of participants with events.
        group Id
        OG001
        lower Limit
        61.0
        upper Limit
        NA
        value
        67.7
denoms
  1. counts
    1. group Id
      OG000
      value
      196
    2. group Id
      OG001
      value
      195
    units
    Participants
description
OS analysis was conducted at the time of study closure, with no adjustment for crossover from the ofatumumab arm to the ibrutinib arm
dispersion Type
95% Confidence Interval
groups
  1. description
    An anti-CD20 monoclonal antibody ofatumumab: The ofatumumab (IV) dosage and schedule is 12 doses administered over 24 weeks or until disease progression, unacceptable toxicity. Week 1: 300 mg initial dose Week 2 through 8: 2,000 mg (once weekly) Week 12, 16, 20 and 24: 2,000 mg (every 4 weeks)
    id
    OG000
    title
    Ofatumumab (Arm A)
  2. description
    A Bruton Tyrosine Kinase Inhibitor ibrutinib: ibrutinib 420 mg (3 x 140-mg capsules) will be administered orally once daily until disease progression or unacceptable toxicity
    id
    OG001
    title
    Ibrutinib (Arm B)
param Type
MEDIAN
reporting Status
POSTED
time Frame
OS analysis was conducted at the time of study closure, including up to 6 years of study follow-up
title
OS (Overall Survival)
type
SECONDARY
unit Of Measure
months

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

Preserved source evidence · Not medical advice