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NCT03391466 · OUTCOME

Duration of Response (DOR) Per Blinded Central Assessments

Study of Effectiveness of Axicabtagene Ciloleucel Compared to Standard of Care Therapy in Patients With Relapsed/Refractory Diffuse Large B Cell Lymphoma · Source last updated 2025-12-01

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

Measure
MEDIAN
Unit
months
Interval / dispersion
95% Confidence Interval
Time frame
From the date of first confirmed objective response (CR or PR) to disease progression or death regardless of cause (Up to 37.8 months)

What was measured

DOR was defined only for participants who experience an objective response after axicabtagene ciloleucel infusion and was the time from the first objective response per Lugano classification to disease progression or death from any cause. Objective response was defined in outcome measure 2 and disease progression was defined in outcome measure 1. KM estimates were used for analysis.

Analysis population: Participants in the Full Analysis Set with objective response were analyzed. Participants not meeting the criteria by the analysis data cut-off date were censored at their last evaluable disease assessment date prior to the data cut-off date or new lymphoma therapy start date (including stem cell transplant in the axicabtagene ciloleucel arm or retreatment of axicabtagene ciloleucel), whichever was earlier.

Groups in this outcome

Axicabtagene Ciloleucel

Participants received cyclophosphamide 500 mg/m\^2/day IV infusion and fludarabine 30 mg/m\^2/day IV infusion conditioning chemotherapy for 3 days followed by axicabtagene ciloleucel administered as a single IV infusion at a target dose of 2 x 10\^6 anti-CD19 CAR transduced autologous T cells/kg on Day 0.

Standard of Care Therapy

Participants received 2 or 3, 21-day cycles of second-line chemotherapy regimen: * R-ICE: rituximab 375mg/m\^2 before chemotherapy, ifosfamide 5g/m\^2 24 hours CI on Day 2 + mesna, carboplatin AUC 5 Day 2, maximum dose 800mg, etoposide 100mg/m\^2/day on Days 1-3; * R-ESHAP: rituximab 375mg/m\^2 Day 1, etoposide 40mg/m\^2/day IV on Days 1-4, methylprednisolone 500mg/day IV on Days 1-4 or 5, cisplatin at 25mg/m\^2/day CI Days 1-4, cytarabine 2g/m\^2 on Day 5; * R-GDP: rituximab 375mg/m\^2 Day 1 (or Day 8), gemcitabine 1g/m\^2 on Days 1 and 8, dexamethasone 40mg on Days 1-4, cisplatin 75mg/m\^2 Day 1 or carboplatin AUC=5; or * R-DHAP: rituximab 375mg/m\^2 before chemotherapy, dexamethasone 40mg/day on Days 1-4, high dose cytarabine 2g/m\^2 every 12 hours for 2 doses on Day 2 following platinum, cisplatin 100mg/m\^2 24 hours CI on Day 1 or oxaliplatin 100mg/m\^2. Participants who responded to second-line chemotherapy got high dose therapy and autologous stem cell transplant.

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

Analysis denominator · Participants

GroupSource count
Axicabtagene Ciloleucel150
Standard of Care Therapy90

Reported measurements

Source class 1
Values in months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Axicabtagene Ciloleucel26.9Not reported13.6NAUpper limit of CI was not reached due to insufficient number of events.
Standard of Care Therapy8.9Not reported5.7NAUpper limit of CI was not reached due to insufficient number of events.

Source statistical analyses

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

  1. ci Lower Limit
    0.488
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    1.108
    estimate Comment
    Stratified Cox regression models were used to estimate hazard ratio and 2-sided 95% CIs for axicabtagene ciloleucel relative to standard of care.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Comment
    One-sided p-value based on log-rank test stratified by response to first-line therapy and second-line age-adjusted IPI as data collected on case report forms.
    non Inferiority Type
    SUPERIORITY
    p Value
    0.0695
    p Value Comment
    Stratified (randomization stratification factors) log-rank test.
    param Type
    Hazard Ratio (HR)
    param Value
    0.736
    statistical Method
    Log Rank
Complete source fields
analyses
  1. ci Lower Limit
    0.488
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    1.108
    estimate Comment
    Stratified Cox regression models were used to estimate hazard ratio and 2-sided 95% CIs for axicabtagene ciloleucel relative to standard of care.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Comment
    One-sided p-value based on log-rank test stratified by response to first-line therapy and second-line age-adjusted IPI as data collected on case report forms.
    non Inferiority Type
    SUPERIORITY
    p Value
    0.0695
    p Value Comment
    Stratified (randomization stratification factors) log-rank test.
    param Type
    Hazard Ratio (HR)
    param Value
    0.736
    statistical Method
    Log Rank
classes
  1. categories
    1. measurements
      1. comment
        Upper limit of CI was not reached due to insufficient number of events.
        group Id
        OG000
        lower Limit
        13.6
        upper Limit
        NA
        value
        26.9
      2. comment
        Upper limit of CI was not reached due to insufficient number of events.
        group Id
        OG001
        lower Limit
        5.7
        upper Limit
        NA
        value
        8.9
denoms
  1. counts
    1. group Id
      OG000
      value
      150
    2. group Id
      OG001
      value
      90
    units
    Participants
description
DOR was defined only for participants who experience an objective response after axicabtagene ciloleucel infusion and was the time from the first objective response per Lugano classification to disease progression or death from any cause. Objective response was defined in outcome measure 2 and disease progression was defined in outcome measure 1. KM estimates were used for analysis.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants received cyclophosphamide 500 mg/m\^2/day IV infusion and fludarabine 30 mg/m\^2/day IV infusion conditioning chemotherapy for 3 days followed by axicabtagene ciloleucel administered as a single IV infusion at a target dose of 2 x 10\^6 anti-CD19 CAR transduced autologous T cells/kg on Day 0.
    id
    OG000
    title
    Axicabtagene Ciloleucel
  2. description
    Participants received 2 or 3, 21-day cycles of second-line chemotherapy regimen: * R-ICE: rituximab 375mg/m\^2 before chemotherapy, ifosfamide 5g/m\^2 24 hours CI on Day 2 + mesna, carboplatin AUC 5 Day 2, maximum dose 800mg, etoposide 100mg/m\^2/day on Days 1-3; * R-ESHAP: rituximab 375mg/m\^2 Day 1, etoposide 40mg/m\^2/day IV on Days 1-4, methylprednisolone 500mg/day IV on Days 1-4 or 5, cisplatin at 25mg/m\^2/day CI Days 1-4, cytarabine 2g/m\^2 on Day 5; * R-GDP: rituximab 375mg/m\^2 Day 1 (or Day 8), gemcitabine 1g/m\^2 on Days 1 and 8, dexamethasone 40mg on Days 1-4, cisplatin 75mg/m\^2 Day 1 or carboplatin AUC=5; or * R-DHAP: rituximab 375mg/m\^2 before chemotherapy, dexamethasone 40mg/day on Days 1-4, high dose cytarabine 2g/m\^2 every 12 hours for 2 doses on Day 2 following platinum, cisplatin 100mg/m\^2 24 hours CI on Day 1 or oxaliplatin 100mg/m\^2. Participants who responded to second-line chemotherapy got high dose therapy and autologous stem cell transplant.
    id
    OG001
    title
    Standard of Care Therapy
param Type
MEDIAN
population Description
Participants in the Full Analysis Set with objective response were analyzed. Participants not meeting the criteria by the analysis data cut-off date were censored at their last evaluable disease assessment date prior to the data cut-off date or new lymphoma therapy start date (including stem cell transplant in the axicabtagene ciloleucel arm or retreatment of axicabtagene ciloleucel), whichever was earlier.
reporting Status
POSTED
time Frame
From the date of first confirmed objective response (CR or PR) to disease progression or death regardless of cause (Up to 37.8 months)
title
Duration of Response (DOR) Per Blinded Central Assessments
type
SECONDARY
unit Of Measure
months

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Preserved source evidence · Not medical advice