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NCT04062448 · OUTCOME

Overall Response Rate (ORR) According to the Modified Sixth International Workshop on Waldenstrom's Macroglobulinemia (IWWM) Criteria

A Study of Ibrutinib in Combination With Rituximab, in Japanese Participants With Waldenstrom's Macroglobulinemia (WM) · Source last updated 2025-05-25

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
Up to 1 year 11 months

What was measured

ORR is defined as the percentage of participants achieving a best overall response of confirmed complete response (CR), very good partial response (VGPR) or partial response (PR) according to the modified sixth IWWM criteria (National Comprehensive Cancer Network \[NCCN\] version 2, 2019), as assessed by the Independent Review Committee (IRC). CR: Immunoglobulin M (IgM) in normal range, disappearance of monoclonal protein by immunofixation, no histologic evidence of bone marrow involvement, resolution of any adenopathy/organomegaly (if present at baseline) along with no signs or symptoms attributable to Waldenstrom's Macroglobulinemia (WM); VGPR and PR: greater than or equal to (\>=) 90 percent (%) (for VGPR) and \>=50% (for PR) reduction of serum IgM, decrease in adenopathy/organomegaly (if present at baseline) on physical examination or computerized tomography (CT) scan, no new symptoms or signs of active disease.

Analysis population: Response evaluable analysis set included all enrolled participants who had measurable disease at baseline, received at least 1 dose of ibrutinib and who had at least 1 adequate postbaseline efficacy assessment.

Groups in this outcome

Ibrutinib + Rituximab

Treatment naive or relapsed/refractory Waldenstrom's Macroglobulinemia (WM) Japanese participants received ibrutinib 420 milligrams (mg) (3\*140 mg capsules) orally, once daily, from Day 1 of Week 1 until disease progression or unacceptable toxicity along with rituximab 375 milligrams per square meter (mg/m\^2) intravenously (IV) weekly for 4 consecutive weeks (Day 1 of Weeks 1 to 4), followed by a second course of once-weekly rituximab for 4 consecutive weeks (from Week 17 to 20) after a 12-week interval.

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 + Rituximab16

Reported measurements

Source class 1
Values in percentage of participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Ibrutinib + Rituximab87.5Not reportedNot reportedNot reportedNot reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        value
        87.5
denoms
  1. counts
    1. group Id
      OG000
      value
      16
    units
    Participants
description
ORR is defined as the percentage of participants achieving a best overall response of confirmed complete response (CR), very good partial response (VGPR) or partial response (PR) according to the modified sixth IWWM criteria (National Comprehensive Cancer Network \[NCCN\] version 2, 2019), as assessed by the Independent Review Committee (IRC). CR: Immunoglobulin M (IgM) in normal range, disappearance of monoclonal protein by immunofixation, no histologic evidence of bone marrow involvement, resolution of any adenopathy/organomegaly (if present at baseline) along with no signs or symptoms attributable to Waldenstrom's Macroglobulinemia (WM); VGPR and PR: greater than or equal to (\>=) 90 percent (%) (for VGPR) and \>=50% (for PR) reduction of serum IgM, decrease in adenopathy/organomegaly (if present at baseline) on physical examination or computerized tomography (CT) scan, no new symptoms or signs of active disease.
groups
  1. description
    Treatment naive or relapsed/refractory Waldenstrom's Macroglobulinemia (WM) Japanese participants received ibrutinib 420 milligrams (mg) (3\*140 mg capsules) orally, once daily, from Day 1 of Week 1 until disease progression or unacceptable toxicity along with rituximab 375 milligrams per square meter (mg/m\^2) intravenously (IV) weekly for 4 consecutive weeks (Day 1 of Weeks 1 to 4), followed by a second course of once-weekly rituximab for 4 consecutive weeks (from Week 17 to 20) after a 12-week interval.
    id
    OG000
    title
    Ibrutinib + Rituximab
param Type
NUMBER
population Description
Response evaluable analysis set included all enrolled participants who had measurable disease at baseline, received at least 1 dose of ibrutinib and who had at least 1 adequate postbaseline efficacy assessment.
reporting Status
POSTED
time Frame
Up to 1 year 11 months
title
Overall Response Rate (ORR) According to the Modified Sixth International Workshop on Waldenstrom's Macroglobulinemia (IWWM) Criteria
type
PRIMARY
unit Of Measure
percentage of participants

Download exact source JSON → · Snapshot ctgov-results-25a395029948b04d52b1253f

Preserved source evidence · Not medical advice