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NCT02601313 · OUTCOME

Duration of Response (DOR) in Cohort 1 as Per Investigator Response

Study of Brexucabtagene Autoleucel (KTE-X19) in Participants With Relapsed/Refractory Mantle Cell Lymphoma (Cohort 1 and Cohort 2) · Source last updated 2026-03-18

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
Up to 7.8 years

What was measured

DOR: time from the first OR to progressive disease (PD)/death. It is determined using Kaplan-Meier (KM) estimates. PD: score 4 (uptake moderately \> liver)/ 5 (uptake markedly \>liver and/or new lesions) with an increase in intensity of uptake from baseline; new fluorodeoxyglucose (FDG)-avid foci consistent with lymphoma at interim/EOT assessment; new FDG-avid foci consistent with lymphoma rather than another etiology; new/recurrent FDG-avid foci in bone marrow; an individual node/lesion must be abnormal with: LDi \> 1.5 cm, increase by ≥ 50% from cross-product of LDi and perpendicular diameter (PPD) nadir, increase in LDi or shortest axis perpendicular to the LDi from nadir, the splenic length must increase by \> 50% of the extent of its prior increase beyond baseline. If no prior splenomegaly, the increase must be ≥ 2 cm from baseline; new/recurrent splenomegaly; new or clear progression of pre-existing NMLs; new lesion; new/recurrent bone marrow involvement.

Analysis population: Participants from the mITT analysis Set with objective response and available data in Cohort 1 were analyzed.

Groups in this outcome

Cohort 1: 2 x 10^6 Brexucabtagene Autoleucel

Participants with relapsed/refractory MCL received conditioning chemotherapy consisting of fludarabine 30 mg/m\^2/day and cyclophosphamide 500 mg/m\^2/day IV infusion for 3 days followed by a single infusion of brexucabtagene autoleucel at a targeted dose of 2 x 10\^6 anti-CD19 CAR T cells/kg, with a maximum dose of 2 x 10\^8 anti-CD19 CAR T cells for participants ≥ 100 kg on Day 0.

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

Analysis denominator · Participants

GroupSource count
Cohort 1: 2 x 10^6 Brexucabtagene Autoleucel60

Reported measurements

Source class 1
Values in months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Cohort 1: 2 x 10^6 Brexucabtagene Autoleucel36.5Not reported17.748.9Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        17.7
        upper Limit
        48.9
        value
        36.5
denoms
  1. counts
    1. group Id
      OG000
      value
      60
    units
    Participants
description
DOR: time from the first OR to progressive disease (PD)/death. It is determined using Kaplan-Meier (KM) estimates. PD: score 4 (uptake moderately \> liver)/ 5 (uptake markedly \>liver and/or new lesions) with an increase in intensity of uptake from baseline; new fluorodeoxyglucose (FDG)-avid foci consistent with lymphoma at interim/EOT assessment; new FDG-avid foci consistent with lymphoma rather than another etiology; new/recurrent FDG-avid foci in bone marrow; an individual node/lesion must be abnormal with: LDi \> 1.5 cm, increase by ≥ 50% from cross-product of LDi and perpendicular diameter (PPD) nadir, increase in LDi or shortest axis perpendicular to the LDi from nadir, the splenic length must increase by \> 50% of the extent of its prior increase beyond baseline. If no prior splenomegaly, the increase must be ≥ 2 cm from baseline; new/recurrent splenomegaly; new or clear progression of pre-existing NMLs; new lesion; new/recurrent bone marrow involvement.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants with relapsed/refractory MCL received conditioning chemotherapy consisting of fludarabine 30 mg/m\^2/day and cyclophosphamide 500 mg/m\^2/day IV infusion for 3 days followed by a single infusion of brexucabtagene autoleucel at a targeted dose of 2 x 10\^6 anti-CD19 CAR T cells/kg, with a maximum dose of 2 x 10\^8 anti-CD19 CAR T cells for participants ≥ 100 kg on Day 0.
    id
    OG000
    title
    Cohort 1: 2 x 10^6 Brexucabtagene Autoleucel
param Type
MEDIAN
population Description
Participants from the mITT analysis Set with objective response and available data in Cohort 1 were analyzed.
reporting Status
POSTED
time Frame
Up to 7.8 years
title
Duration of Response (DOR) in Cohort 1 as Per Investigator Response
type
SECONDARY
unit Of Measure
months

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

Preserved source evidence · Not medical advice