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NCT01776840 · OUTCOME

Minimal Residual Disease (MRD)-Negative Response Rate

A Study of the Bruton's Tyrosine Kinase Inhibitor Ibrutinib Given in Combination With Bendamustine and Rituximab in Patients With Newly Diagnosed Mantle Cell Lymphoma · Source last updated 2025-07-08

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 97 months

What was measured

Minimal residual disease negative rate was defined as the percentage of participants with a best overall response of CR with MRD-negative disease status (that is, \<5 mantle cell lymphoma \[MCL\] cell per 10,000 leukocytes for detection using the MRD assay), as assessed by flow cytometry of a bone marrow and/or peripheral blood sample.

Analysis population: ITT analysis set included all randomized participants and classified according to the assigned treatment group, regardless of the actual treatment received. CR participants with missing MRD data and participants who did not achieve a CR were considered nonresponders.

Groups in this outcome

Placebo + Bendamustine and Rituximab (BR) (Treatment A)

Participants received 4 capsules of ibrutinib-matching Placebo administered orally once daily continuously starting on Day 1, Cycle 1 until disease progression, or unacceptable toxicity, or study end, whichever occurred first. All participants also received a maximum of 6 cycles of BR background therapy (bendamustine hydrochloride 90 milligrams per meter square \[mg/m\^2\] intravenous \[IV\] infusion on Days 1 and 2 of each cycle and rituximab 375 mg/m\^2 IV infusion on Day 1 of each cycle), unless disease progression or unacceptable toxicity prior to Cycle 6. Participants with a complete response (CR) or partial response (PR) continued to receive background therapy with rituximab maintenance (375 mg/m\^2 IV infusion) on Day 1 every second cycle starting at Cycle 8 for a maximum of 12 additional doses unless disease progression or unacceptable toxicity. Each cycle was of 28 days. Participants received treatment A up to 100.1 months. After treatment unblinding at the time of the primary analysis, participants randomized to Treatment A discontinued placebo treatment.

Ibrutinib + Bendamustine and Rituximab (BR) (Treatment B)

Participants received ibrutinib capsules 560 mg (4\*140 mg capsule) administered orally once daily continuously starting on Day 1, Cycle 1 until disease progression, or unacceptable toxicity, or study end, whichever occurred first. All participants also received a maximum of 6 cycles of BR background therapy (bendamustine hydrochloride 90 mg/m\^2 IV infusion on Days 1 and 2 of each cycle and rituximab 375 mg/m\^2 IV infusion on Day 1 of each cycle), unless disease progression or unacceptable toxicity prior to Cycle 6. Participants with a CR or PR continued to receive background therapy with rituximab maintenance (375 mg/m\^2 IV infusion) on Day 1 every second cycle starting at Cycle 8 for a maximum of 12 additional doses unless disease progression or unacceptable toxicity. Each cycle was of 28 days. Participants received treatment B up to 117.2 months. After treatment unblinding at the time of the primary analysis, participants randomized to Treatment B continued treatment with ibrutinib at the discretion of the investigator.

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

Analysis denominator · Participants

GroupSource count
Placebo + Bendamustine and Rituximab (BR) (Treatment A)262
Ibrutinib + Bendamustine and Rituximab (BR) (Treatment B)261

Reported measurements

Source class 1
Values in percentage of participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Placebo + Bendamustine and Rituximab (BR) (Treatment A)56.5Not reportedNot reportedNot reportedNot reported
Ibrutinib + Bendamustine and Rituximab (BR) (Treatment B)62.1Not reportedNot reportedNot reportedNot reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        value
        56.5
      2. group Id
        OG001
        value
        62.1
denoms
  1. counts
    1. group Id
      OG000
      value
      262
    2. group Id
      OG001
      value
      261
    units
    Participants
description
Minimal residual disease negative rate was defined as the percentage of participants with a best overall response of CR with MRD-negative disease status (that is, \<5 mantle cell lymphoma \[MCL\] cell per 10,000 leukocytes for detection using the MRD assay), as assessed by flow cytometry of a bone marrow and/or peripheral blood sample.
groups
  1. description
    Participants received 4 capsules of ibrutinib-matching Placebo administered orally once daily continuously starting on Day 1, Cycle 1 until disease progression, or unacceptable toxicity, or study end, whichever occurred first. All participants also received a maximum of 6 cycles of BR background therapy (bendamustine hydrochloride 90 milligrams per meter square \[mg/m\^2\] intravenous \[IV\] infusion on Days 1 and 2 of each cycle and rituximab 375 mg/m\^2 IV infusion on Day 1 of each cycle), unless disease progression or unacceptable toxicity prior to Cycle 6. Participants with a complete response (CR) or partial response (PR) continued to receive background therapy with rituximab maintenance (375 mg/m\^2 IV infusion) on Day 1 every second cycle starting at Cycle 8 for a maximum of 12 additional doses unless disease progression or unacceptable toxicity. Each cycle was of 28 days. Participants received treatment A up to 100.1 months. After treatment unblinding at the time of the primary analysis, participants randomized to Treatment A discontinued placebo treatment.
    id
    OG000
    title
    Placebo + Bendamustine and Rituximab (BR) (Treatment A)
  2. description
    Participants received ibrutinib capsules 560 mg (4\*140 mg capsule) administered orally once daily continuously starting on Day 1, Cycle 1 until disease progression, or unacceptable toxicity, or study end, whichever occurred first. All participants also received a maximum of 6 cycles of BR background therapy (bendamustine hydrochloride 90 mg/m\^2 IV infusion on Days 1 and 2 of each cycle and rituximab 375 mg/m\^2 IV infusion on Day 1 of each cycle), unless disease progression or unacceptable toxicity prior to Cycle 6. Participants with a CR or PR continued to receive background therapy with rituximab maintenance (375 mg/m\^2 IV infusion) on Day 1 every second cycle starting at Cycle 8 for a maximum of 12 additional doses unless disease progression or unacceptable toxicity. Each cycle was of 28 days. Participants received treatment B up to 117.2 months. After treatment unblinding at the time of the primary analysis, participants randomized to Treatment B continued treatment with ibrutinib at the discretion of the investigator.
    id
    OG001
    title
    Ibrutinib + Bendamustine and Rituximab (BR) (Treatment B)
param Type
NUMBER
population Description
ITT analysis set included all randomized participants and classified according to the assigned treatment group, regardless of the actual treatment received. CR participants with missing MRD data and participants who did not achieve a CR were considered nonresponders.
reporting Status
POSTED
time Frame
Up to 97 months
title
Minimal Residual Disease (MRD)-Negative Response Rate
type
SECONDARY
unit Of Measure
percentage of participants

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

Preserved source evidence · Not medical advice