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NCT02264574 · OUTCOME

Final Analysis: ORR Based on Investigator Assessment

A Multi-Center Study of Ibrutinib in Combination With Obinutuzumab Versus Chlorambucil in Combination With Obinutuzumab in Patients With Treatment naïve Chronic Lymphocytic Leukemia (CLL) or Small Lymphocytic Lymphoma (SLL) · Source last updated 2020-09-21

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

Measure
NUMBER
Unit
percentage of participants
Interval / dispersion
Not reported
Time frame
Median follow-up time was 44.6 months at the time of the final analysis (data cutoff date: 17 October 2019).

What was measured

ORR, defined as the percentage of participants achieving a best overall response of protocol-specified CR, CRi, nPR or PR per investigator assessment at or prior to initiation of subsequent antineoplastic therapy. Assessment of response included physical examination, radiographic imaging, and evaluation of blood and marrow (if applicable), evaluated in accordance with the IWCLL 2008 criteria (Halleck et al). CR, CRi, nPR, and PR required confirmation with 2 consecutive assessments that were at least 56 days apart and no use of blood supportive product and/or growth factor during this period. Kaplan-Meier estimate.

Analysis population: Intent to Treat population: all randomized participants

Groups in this outcome

IBR+OB

Ibrutinib (IBR) given orally at a dose of 420 mg/day until progressive disease or unacceptable toxicity. Intravenous obinutuzumab (OB) given on Days 1 and 2 (100 mg on Day 1 and 900 mg on Day 2), 1000 mg on Days 8 and 15 of Cycle 1 and 1000 mg on Day 1 of each cycle up to 6 cycles or until progressive disease or unacceptable toxicity.

CLB+OB

Chlorambucil (CLB) given orally at a dose of 0.5 mg/kg body weight up to a total of 6 cycles on Days 1 and 15 of each cycle or until disease progression or unacceptable toxicity. Intravenous obinutuzumab (OB) given on Days 1 and 2 (100 mg on Day 1 and 900 mg on Day 2), 1000 mg on Days 8 and 15 of Cycle 1 and 1000 mg on Day 1 of each cycle up to 6 cycles or 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
IBR+OB113
CLB+OB116

Reported measurements

Source class 1
Values in percentage of participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
IBR+OB91.2Not reportedNot reportedNot reportedNot reported
CLB+OB81.0Not reportedNot reportedNot reportedNot reported

Source statistical analyses

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

  1. ci Lower Limit
    1.013
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    1.250
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.0273
    param Type
    Rate Ratio
    param Value
    1.125
    statistical Method
    Chi-squared
Complete source fields
analyses
  1. ci Lower Limit
    1.013
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    1.250
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.0273
    param Type
    Rate Ratio
    param Value
    1.125
    statistical Method
    Chi-squared
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        value
        91.2
      2. group Id
        OG001
        value
        81.0
denoms
  1. counts
    1. group Id
      OG000
      value
      113
    2. group Id
      OG001
      value
      116
    units
    Participants
description
ORR, defined as the percentage of participants achieving a best overall response of protocol-specified CR, CRi, nPR or PR per investigator assessment at or prior to initiation of subsequent antineoplastic therapy. Assessment of response included physical examination, radiographic imaging, and evaluation of blood and marrow (if applicable), evaluated in accordance with the IWCLL 2008 criteria (Halleck et al). CR, CRi, nPR, and PR required confirmation with 2 consecutive assessments that were at least 56 days apart and no use of blood supportive product and/or growth factor during this period. Kaplan-Meier estimate.
groups
  1. description
    Ibrutinib (IBR) given orally at a dose of 420 mg/day until progressive disease or unacceptable toxicity. Intravenous obinutuzumab (OB) given on Days 1 and 2 (100 mg on Day 1 and 900 mg on Day 2), 1000 mg on Days 8 and 15 of Cycle 1 and 1000 mg on Day 1 of each cycle up to 6 cycles or until progressive disease or unacceptable toxicity.
    id
    OG000
    title
    IBR+OB
  2. description
    Chlorambucil (CLB) given orally at a dose of 0.5 mg/kg body weight up to a total of 6 cycles on Days 1 and 15 of each cycle or until disease progression or unacceptable toxicity. Intravenous obinutuzumab (OB) given on Days 1 and 2 (100 mg on Day 1 and 900 mg on Day 2), 1000 mg on Days 8 and 15 of Cycle 1 and 1000 mg on Day 1 of each cycle up to 6 cycles or until disease progression or unacceptable toxicity.
    id
    OG001
    title
    CLB+OB
param Type
NUMBER
population Description
Intent to Treat population: all randomized participants
reporting Status
POSTED
time Frame
Median follow-up time was 44.6 months at the time of the final analysis (data cutoff date: 17 October 2019).
title
Final Analysis: ORR Based on Investigator Assessment
type
SECONDARY
unit Of Measure
percentage of participants

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Preserved source evidence · Not medical advice