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NCT01611090 · OUTCOME

Progression-free Survival (PFS)

A Study of Ibrutinib in Combination With Bendamustine and Rituximab in Patients With Relapsed or Refractory Chronic Lymphocytic Leukemia or Small Lymphocytic Lymphoma · Source last updated 2020-03-03

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
Up to 5 years

What was measured

PFS was defined as the interval between the date of randomization and the date of disease progression or death, whichever was first reported. IWCLL 2008 criteria for PD: New enlarged nodes \>1.5 cm, new hepatomegaly or splenomegaly, or other new organ infiltrates, bone lesion, ascites, or pleural effusion confirmed due to chronic lymphocytic leukemia (CLL); \>=50% increase in existing lymph nodes; \>=50% increase in enlargement of liver or spleen; \>=50% increase from baseline in lymphocyte count (and to \>=5\*10\^9/L) or \>=50% increase from nadir count confirmed on \>=2 serial assessments if absolute lymphocyte count (ALC) \>=30,000 per microliter and lymphocyte doubling time is rapid, unless considered treatment-related lymphocytosis; new cytopenia (Hemoglobin b \[Hgb\] or platelets) attributable to CLL; and transformation to a more aggressive histology.

Analysis population: Intent to treat (ITT) population included all participants randomized into the study regardless of treatment actually received.

Groups in this outcome

Ibrutinib+BR

Participants received ibrutinib 420 milligram (mg) (3 \* 140 mg capsules) orally once daily starting on Cycle 1 Day 2 for a maximum of 6 cycles (each cycle of 28 days except Cycle 1 which was of 29 days) along with BR. After 6 cycles ibrutinib alone was administered until disease progression or unacceptable toxicity.

Placebo+BR

Participants received placebo (3 capsules) orally once daily starting on Cycle 1 Day 2 for a maximum of 6 cycles (each cycle of 28 days except Cycle 1 which was of 29 days) along with BR. After 6 cycles placebo alone was administered 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
Ibrutinib+BR289
Placebo+BR289

Reported measurements

Source class 1
Values in Months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Ibrutinib+BR65.12Not reported55.43NAHere, NA indicates upper limit of confidence interval (CI) was not estimable due to insufficient number of events.
Placebo+BR14.32Not reported13.8616.62Not reported

Source statistical analyses

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

  1. ci Lower Limit
    0.183
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.286
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    < 0.0001
    param Type
    Hazard Ratio (HR)
    param Value
    0.229
    statistical Method
    Log Rank
Complete source fields
analyses
  1. ci Lower Limit
    0.183
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.286
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    < 0.0001
    param Type
    Hazard Ratio (HR)
    param Value
    0.229
    statistical Method
    Log Rank
classes
  1. categories
    1. measurements
      1. comment
        Here, NA indicates upper limit of confidence interval (CI) was not estimable due to insufficient number of events.
        group Id
        OG000
        lower Limit
        55.43
        upper Limit
        NA
        value
        65.12
      2. group Id
        OG001
        lower Limit
        13.86
        upper Limit
        16.62
        value
        14.32
denoms
  1. counts
    1. group Id
      OG000
      value
      289
    2. group Id
      OG001
      value
      289
    units
    Participants
description
PFS was defined as the interval between the date of randomization and the date of disease progression or death, whichever was first reported. IWCLL 2008 criteria for PD: New enlarged nodes \>1.5 cm, new hepatomegaly or splenomegaly, or other new organ infiltrates, bone lesion, ascites, or pleural effusion confirmed due to chronic lymphocytic leukemia (CLL); \>=50% increase in existing lymph nodes; \>=50% increase in enlargement of liver or spleen; \>=50% increase from baseline in lymphocyte count (and to \>=5\*10\^9/L) or \>=50% increase from nadir count confirmed on \>=2 serial assessments if absolute lymphocyte count (ALC) \>=30,000 per microliter and lymphocyte doubling time is rapid, unless considered treatment-related lymphocytosis; new cytopenia (Hemoglobin b \[Hgb\] or platelets) attributable to CLL; and transformation to a more aggressive histology.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants received ibrutinib 420 milligram (mg) (3 \* 140 mg capsules) orally once daily starting on Cycle 1 Day 2 for a maximum of 6 cycles (each cycle of 28 days except Cycle 1 which was of 29 days) along with BR. After 6 cycles ibrutinib alone was administered until disease progression or unacceptable toxicity.
    id
    OG000
    title
    Ibrutinib+BR
  2. description
    Participants received placebo (3 capsules) orally once daily starting on Cycle 1 Day 2 for a maximum of 6 cycles (each cycle of 28 days except Cycle 1 which was of 29 days) along with BR. After 6 cycles placebo alone was administered until disease progression or unacceptable toxicity.
    id
    OG001
    title
    Placebo+BR
param Type
MEDIAN
population Description
Intent to treat (ITT) population included all participants randomized into the study regardless of treatment actually received.
reporting Status
POSTED
time Frame
Up to 5 years
title
Progression-free Survival (PFS)
type
PRIMARY
unit Of Measure
Months

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