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NCT03734016 · OUTCOME

Rate of Partial Response With Lymphocytosis (PR-L) or Higher Assessed by the Investigator

A Study of Zanubrutinib (BGB-3111) Versus Ibrutinib in Participants With Relapsed/Refractory Chronic Lymphocytic Leukemia · Source last updated 2025-03-30

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
95% Confidence Interval
Time frame
From randomization to the final efficacy analysis cutoff date of 08 August 2022, median time on follow-up was 29.6 months (maximum of 45.2 months).

What was measured

The rate of partial response with lymphocytosis or better is defined as the percentage of participants who achieved a complete response or complete response with incomplete bone marrow recovery (CR/CRi), nodular partial response, partial response, or partial response with lymphocytosis as assessed by the investigator. Disease response was assessed according to the iwCLL 2008 criteria, with modification for treatment-related lymphocytosis for participants with CLL and in accordance with Lugano classification for participants with SLL. Partial response with lymphocytosis: blood lymphocytes decreased \< 50% or increased from baseline, and otherwise meeting criteria for PR.

Analysis population: ITT Analysis Set

Groups in this outcome

Zanubrutinib

Participants received 160 mg zanubrutinib orally twice daily until disease progression, intolerable toxicity, initiation of alternative anticancer therapy, investigator/Sponsor decision, need for prohibited medication, study withdrawal, or pregnancy.

Ibrutinib

Participants received ibrutinib 420 mg orally once daily until disease progression, intolerable toxicity, initiation of alternative anticancer therapy, investigator/Sponsor decision, need for prohibited medication, study withdrawal, or pregnancy.

Group identifiers and denominators belong to this outcome only. They may differ in another outcome or in safety reporting.

Analysis denominator · Participants

GroupSource count
Zanubrutinib327
Ibrutinib325

Reported measurements

Source class 1
Values in percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Zanubrutinib89.9Not reported86.193.0Not reported
Ibrutinib82.5Not reported77.986.4Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        86.1
        upper Limit
        93.0
        value
        89.9
      2. group Id
        OG001
        lower Limit
        77.9
        upper Limit
        86.4
        value
        82.5
denoms
  1. counts
    1. group Id
      OG000
      value
      327
    2. group Id
      OG001
      value
      325
    units
    Participants
description
The rate of partial response with lymphocytosis or better is defined as the percentage of participants who achieved a complete response or complete response with incomplete bone marrow recovery (CR/CRi), nodular partial response, partial response, or partial response with lymphocytosis as assessed by the investigator. Disease response was assessed according to the iwCLL 2008 criteria, with modification for treatment-related lymphocytosis for participants with CLL and in accordance with Lugano classification for participants with SLL. Partial response with lymphocytosis: blood lymphocytes decreased \< 50% or increased from baseline, and otherwise meeting criteria for PR.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants received 160 mg zanubrutinib orally twice daily until disease progression, intolerable toxicity, initiation of alternative anticancer therapy, investigator/Sponsor decision, need for prohibited medication, study withdrawal, or pregnancy.
    id
    OG000
    title
    Zanubrutinib
  2. description
    Participants received ibrutinib 420 mg orally once daily until disease progression, intolerable toxicity, initiation of alternative anticancer therapy, investigator/Sponsor decision, need for prohibited medication, study withdrawal, or pregnancy.
    id
    OG001
    title
    Ibrutinib
param Type
NUMBER
population Description
ITT Analysis Set
reporting Status
POSTED
time Frame
From randomization to the final efficacy analysis cutoff date of 08 August 2022, median time on follow-up was 29.6 months (maximum of 45.2 months).
title
Rate of Partial Response With Lymphocytosis (PR-L) or Higher Assessed by the Investigator
type
SECONDARY
unit Of Measure
percentage of participants

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

Preserved source evidence · Not medical advice