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NCT04680052 · OUTCOME

FL Population: Kaplan-Meier Estimates of DOR (the Time From the First Tumor Response [CR or PR as Per the Lugano 2014 Classification] Until the Time of the First Documented PD or Death From Any Cause, Whichever Was Earlier) by Investigator Assessment

A Phase 3 Study to Assess Efficacy and Safety of Tafasitamab Plus Lenalidomide and Rituximab Compared to Placebo Plus Lenalidomide and Rituximab in Patients With Relapsed/Refractory (R/R) Follicular Lymphoma or Marginal Zone Lymphoma. · Source last updated 2026-09-04

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

Measure
NUMBER
Unit
percent probability
Interval / dispersion
95% Confidence Interval
Time frame
up to 2 years

What was measured

PET, CR: (1) score of 1 (no uptake above background), 2 (uptake ≤ mediastinum), or 3 (uptake \> mediastinum but ≤ liver) with/without a residual mass for lymph nodes and extralymphatic sites (LN/ELS); (2) no evidence of FDG-avid disease in bone marrow; (3) no new lesions. PR: (1) score of 4 (uptake moderately \> liver) or 5 (uptake markedly higher than liver and/or new lesions) with reduced uptake compared with Baseline and residual mass(es) of any size for LN/ELS; (2) residual uptake higher than in normal bone marrow but reduced from Baseline; (3) no new lesions. CT, CR: (1) target nodes/nodal masses regressed to ≤1.5 cm in LDi. no extra lymphatic site of disease; (2) absent nontarget lesions; (3) liver/spleen regressed to normal; (4) bone marrow normal by morphology; (5) no new lesions. PR: (1) ≥50% decrease in SPD of up to 6 target measurable nodes and extranodal sites; (2) no increase in target lesions; (3) spleen regressed by \>50% in length beyond normal; (4) no new lesions.

Analysis population: FL Full Analysis Set. Only those participants who achieved an objective response (CR or PR) were analyzed. Kaplan-Meier estimates indicate the percent probability of a participant still having a CR or PR at the indicated time after treatment start. The number of participants analyzed for the Kaplan-Meier estimate at each time point refers to the total number of participants in the analysis set.

Groups in this outcome

FL: Tafasitamab + Rituximab + Lenalidomide

Participants with follicular lymphoma (FL) were randomized to receive tafasitamab 12 milligrams per kilogram (mg/kg) intravenously (IV), administered on Days 1, 8, 15, and 22 of Cycles 1 to 3 and on Days 1 and 15 of Cycles 4 to 12. Participants also received oral lenalidomide (including generics) 20 mg once daily (QD), administered at approximately the same time every day on Days 1 to 21 of Cycles 1 to 12, and rituximab (including biosimilars) 375 mg/meters squared (m\^2) IV, administered on Days 1, 8, 15, and 22 of Cycle 1 and on Day 1 of Cycles 2 to 5. A treatment cycle was defined as 28 calendar days.

FL: Placebo + Rituximab + Lenalidomide

Participants with FL were randomized to receive placebo 0.9% saline solution IV, administered on Days 1, 8, 15, and 22 of Cycles 1 to 3 and on Days 1 and 15 of Cycles 4 to 12. Participants also received oral lenalidomide (including generics) 20 mg QD, administered at approximately the same time every day on Days 1 to 21 of Cycles 1 to 12, and rituximab (including biosimilars) 375 mg/m\^2 IV, administered on Days 1, 8, 15, and 22 of Cycle 1 and on Day 1 of Cycles 2 to 5. A treatment cycle was defined as 28 calendar days.

MZL: Tafasitamab + Rituximab + Lenalidomide

Participants with marginal zone lymphoma (MZL) were randomized to receive tafasitamab 12 mg/kg IV, administered on Days 1, 8, 15, and 22 of Cycles 1 to 3 and on Days 1 and 15 of Cycles 4 to 12. Participants also received oral lenalidomide (including generics) 20 mg QD, administered at approximately the same time every day on Days 1 to 21 of Cycles 1 to 12, and rituximab (including biosimilars) 375 mg/m\^2 IV, administered on Days 1, 8, 15, and 22 of Cycle 1 and on Day 1 of Cycles 2 to 5. A treatment cycle was defined as 28 calendar days.

MZL: Placebo + Rituximab + Lenalidomide

Participants with MZL were randomized to receive placebo 0.9% saline solution IV, administered on Days 1, 8, 15, and 22 of Cycles 1 to 3 and on Days 1 and 15 of Cycles 4 to 12. Participants also received oral lenalidomide (including generics) 20 mg QD, administered at approximately the same time every day on Days 1 to 21 of Cycles 1 to 12, and rituximab (including biosimilars) 375 mg/m\^2 IV, administered on Days 1, 8, 15, and 22 of Cycle 1 and on Day 1 of Cycles 2 to 5. A treatment cycle was defined as 28 calendar days.

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

Analysis denominator · Participants

GroupSource count
FL: Tafasitamab + Rituximab + Lenalidomide228
FL: Placebo + Rituximab + Lenalidomide199
MZL: Tafasitamab + Rituximab + Lenalidomide0
MZL: Placebo + Rituximab + Lenalidomide0

Reported measurements

6 months
Values in percent probability · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
FL: Tafasitamab + Rituximab + Lenalidomide91.5Not reported86.694.6Not reported
FL: Placebo + Rituximab + Lenalidomide77.8Not reported70.983.2Not reported
12 months
Values in percent probability · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
FL: Tafasitamab + Rituximab + Lenalidomide76.3Not reported68.482.4Not reported
FL: Placebo + Rituximab + Lenalidomide59.1Not reported50.366.9Not reported
18 months
Values in percent probability · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
FL: Tafasitamab + Rituximab + Lenalidomide63.7Not reported53.472.2Not reported
FL: Placebo + Rituximab + Lenalidomide42.9Not reported33.152.4Not reported
2 years
Values in percent probability · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
FL: Tafasitamab + Rituximab + Lenalidomide39.5Not reported21.457.1Not reported
FL: Placebo + Rituximab + Lenalidomide33.3Not reported20.546.6Not reported

Source statistical analyses

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

  1. ci Lower Limit
    0.330
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.678
    estimate Comment
    The hazard ratio was estimated using a stratified Cox proportional hazards model.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Comment
    Only primary and key secondary endpoints were formally tested; this endpoint was not formally tested.
    non Inferiority Type
    SUPERIORITY
    p Value
    <0.0001
    param Type
    Hazard Ratio (HR)
    param Value
    0.473
    statistical Method
    stratified Log Rank
Complete source fields
analyses
  1. ci Lower Limit
    0.330
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.678
    estimate Comment
    The hazard ratio was estimated using a stratified Cox proportional hazards model.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Comment
    Only primary and key secondary endpoints were formally tested; this endpoint was not formally tested.
    non Inferiority Type
    SUPERIORITY
    p Value
    <0.0001
    param Type
    Hazard Ratio (HR)
    param Value
    0.473
    statistical Method
    stratified Log Rank
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        86.6
        upper Limit
        94.6
        value
        91.5
      2. group Id
        OG001
        lower Limit
        70.9
        upper Limit
        83.2
        value
        77.8
    title
    6 months
  2. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        68.4
        upper Limit
        82.4
        value
        76.3
      2. group Id
        OG001
        lower Limit
        50.3
        upper Limit
        66.9
        value
        59.1
    title
    12 months
  3. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        53.4
        upper Limit
        72.2
        value
        63.7
      2. group Id
        OG001
        lower Limit
        33.1
        upper Limit
        52.4
        value
        42.9
    title
    18 months
  4. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        21.4
        upper Limit
        57.1
        value
        39.5
      2. group Id
        OG001
        lower Limit
        20.5
        upper Limit
        46.6
        value
        33.3
    title
    2 years
denoms
  1. counts
    1. group Id
      OG000
      value
      228
    2. group Id
      OG001
      value
      199
    3. group Id
      OG002
      value
      0
    4. group Id
      OG003
      value
      0
    units
    Participants
description
PET, CR: (1) score of 1 (no uptake above background), 2 (uptake ≤ mediastinum), or 3 (uptake \> mediastinum but ≤ liver) with/without a residual mass for lymph nodes and extralymphatic sites (LN/ELS); (2) no evidence of FDG-avid disease in bone marrow; (3) no new lesions. PR: (1) score of 4 (uptake moderately \> liver) or 5 (uptake markedly higher than liver and/or new lesions) with reduced uptake compared with Baseline and residual mass(es) of any size for LN/ELS; (2) residual uptake higher than in normal bone marrow but reduced from Baseline; (3) no new lesions. CT, CR: (1) target nodes/nodal masses regressed to ≤1.5 cm in LDi. no extra lymphatic site of disease; (2) absent nontarget lesions; (3) liver/spleen regressed to normal; (4) bone marrow normal by morphology; (5) no new lesions. PR: (1) ≥50% decrease in SPD of up to 6 target measurable nodes and extranodal sites; (2) no increase in target lesions; (3) spleen regressed by \>50% in length beyond normal; (4) no new lesions.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants with follicular lymphoma (FL) were randomized to receive tafasitamab 12 milligrams per kilogram (mg/kg) intravenously (IV), administered on Days 1, 8, 15, and 22 of Cycles 1 to 3 and on Days 1 and 15 of Cycles 4 to 12. Participants also received oral lenalidomide (including generics) 20 mg once daily (QD), administered at approximately the same time every day on Days 1 to 21 of Cycles 1 to 12, and rituximab (including biosimilars) 375 mg/meters squared (m\^2) IV, administered on Days 1, 8, 15, and 22 of Cycle 1 and on Day 1 of Cycles 2 to 5. A treatment cycle was defined as 28 calendar days.
    id
    OG000
    title
    FL: Tafasitamab + Rituximab + Lenalidomide
  2. description
    Participants with FL were randomized to receive placebo 0.9% saline solution IV, administered on Days 1, 8, 15, and 22 of Cycles 1 to 3 and on Days 1 and 15 of Cycles 4 to 12. Participants also received oral lenalidomide (including generics) 20 mg QD, administered at approximately the same time every day on Days 1 to 21 of Cycles 1 to 12, and rituximab (including biosimilars) 375 mg/m\^2 IV, administered on Days 1, 8, 15, and 22 of Cycle 1 and on Day 1 of Cycles 2 to 5. A treatment cycle was defined as 28 calendar days.
    id
    OG001
    title
    FL: Placebo + Rituximab + Lenalidomide
  3. description
    Participants with marginal zone lymphoma (MZL) were randomized to receive tafasitamab 12 mg/kg IV, administered on Days 1, 8, 15, and 22 of Cycles 1 to 3 and on Days 1 and 15 of Cycles 4 to 12. Participants also received oral lenalidomide (including generics) 20 mg QD, administered at approximately the same time every day on Days 1 to 21 of Cycles 1 to 12, and rituximab (including biosimilars) 375 mg/m\^2 IV, administered on Days 1, 8, 15, and 22 of Cycle 1 and on Day 1 of Cycles 2 to 5. A treatment cycle was defined as 28 calendar days.
    id
    OG002
    title
    MZL: Tafasitamab + Rituximab + Lenalidomide
  4. description
    Participants with MZL were randomized to receive placebo 0.9% saline solution IV, administered on Days 1, 8, 15, and 22 of Cycles 1 to 3 and on Days 1 and 15 of Cycles 4 to 12. Participants also received oral lenalidomide (including generics) 20 mg QD, administered at approximately the same time every day on Days 1 to 21 of Cycles 1 to 12, and rituximab (including biosimilars) 375 mg/m\^2 IV, administered on Days 1, 8, 15, and 22 of Cycle 1 and on Day 1 of Cycles 2 to 5. A treatment cycle was defined as 28 calendar days.
    id
    OG003
    title
    MZL: Placebo + Rituximab + Lenalidomide
param Type
NUMBER
population Description
FL Full Analysis Set. Only those participants who achieved an objective response (CR or PR) were analyzed. Kaplan-Meier estimates indicate the percent probability of a participant still having a CR or PR at the indicated time after treatment start. The number of participants analyzed for the Kaplan-Meier estimate at each time point refers to the total number of participants in the analysis set.
reporting Status
POSTED
time Frame
up to 2 years
title
FL Population: Kaplan-Meier Estimates of DOR (the Time From the First Tumor Response [CR or PR as Per the Lugano 2014 Classification] Until the Time of the First Documented PD or Death From Any Cause, Whichever Was Earlier) by Investigator Assessment
type
SECONDARY
unit Of Measure
percent probability

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Preserved source evidence · Not medical advice