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NCT02264574 · OUTCOME

Final Analysis: Rate of Minimal Residual Disease (MRD)-Negative Response

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

Percentage of participants who achieved MRD-negative response, defined as \< 1 CLL cell per 10,000 leukocytes as assessed by flow cytometry of a bone marrow aspirate per central laboratory. MRD samples were collected before initiation of subsequent antineoplastic treatment and MRD status was reported by central lab within 5 days after collection date. Participants with missing MRD data were considered non-responders.

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+OB24.8Not reportedNot reportedNot reportedNot reported
CLB+OB17.2Not reportedNot reportedNot reportedNot reported

Source statistical analyses

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

  1. group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.1612
    statistical Method
    Chi-squared
Complete source fields
analyses
  1. group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.1612
    statistical Method
    Chi-squared
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        value
        24.8
      2. group Id
        OG001
        value
        17.2
denoms
  1. counts
    1. group Id
      OG000
      value
      113
    2. group Id
      OG001
      value
      116
    units
    Participants
description
Percentage of participants who achieved MRD-negative response, defined as \< 1 CLL cell per 10,000 leukocytes as assessed by flow cytometry of a bone marrow aspirate per central laboratory. MRD samples were collected before initiation of subsequent antineoplastic treatment and MRD status was reported by central lab within 5 days after collection date. Participants with missing MRD data were considered non-responders.
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: Rate of Minimal Residual Disease (MRD)-Negative Response
type
SECONDARY
unit Of Measure
percentage of participants

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

Preserved source evidence · Not medical advice