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NCT04680052 · OUTCOME

Overall 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: Overall Full Analysis Set. Per the SAP, the MZL population was considered as a subpopulation of interest, not a main analysis population. The FL and MZL populations were combined for analysis into the Overall population (main analysis population). Participants who achieved CR or PR were analyzed. 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 and MZL: Tafasitamab + Rituximab + Lenalidomide

Participants with FL and 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.

FL and MZL: Placebo + Rituximab + Lenalidomide

Participants with FL and 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 and MZL: Tafasitamab + Rituximab + Lenalidomide270
FL and MZL: Placebo + Rituximab + Lenalidomide236

Reported measurements

6 months
Values in percent probability · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
FL and MZL: Tafasitamab + Rituximab + Lenalidomide90.8Not reported86.393.8Not reported
FL and MZL: Placebo + Rituximab + Lenalidomide80.5Not reported74.685.3Not reported
12 months
Values in percent probability · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
FL and MZL: Tafasitamab + Rituximab + Lenalidomide78.1Not reported71.483.4Not reported
FL and MZL: Placebo + Rituximab + Lenalidomide64.4Not reported56.671.1Not reported
18 months
Values in percent probability · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
FL and MZL: Tafasitamab + Rituximab + Lenalidomide66.6Not reported57.873.9Not reported
FL and MZL: Placebo + Rituximab + Lenalidomide47.6Not reported38.456.2Not reported
2 years
Values in percent probability · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
FL and MZL: Tafasitamab + Rituximab + Lenalidomide43.4Not reported27.258.6Not reported
FL and MZL: Placebo + Rituximab + Lenalidomide35.1Not reported23.047.4Not reported

Source statistical analyses

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

  1. ci Lower Limit
    0.397
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.763
    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
    0.0003
    param Type
    Hazard Ratio (HR)
    param Value
    0.550
    statistical Method
    stratified Log Rank
Complete source fields
analyses
  1. ci Lower Limit
    0.397
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.763
    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
    0.0003
    param Type
    Hazard Ratio (HR)
    param Value
    0.550
    statistical Method
    stratified Log Rank
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        86.3
        upper Limit
        93.8
        value
        90.8
      2. group Id
        OG001
        lower Limit
        74.6
        upper Limit
        85.3
        value
        80.5
    title
    6 months
  2. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        71.4
        upper Limit
        83.4
        value
        78.1
      2. group Id
        OG001
        lower Limit
        56.6
        upper Limit
        71.1
        value
        64.4
    title
    12 months
  3. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        57.8
        upper Limit
        73.9
        value
        66.6
      2. group Id
        OG001
        lower Limit
        38.4
        upper Limit
        56.2
        value
        47.6
    title
    18 months
  4. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        27.2
        upper Limit
        58.6
        value
        43.4
      2. group Id
        OG001
        lower Limit
        23.0
        upper Limit
        47.4
        value
        35.1
    title
    2 years
denoms
  1. counts
    1. group Id
      OG000
      value
      270
    2. group Id
      OG001
      value
      236
    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 FL and 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
    OG000
    title
    FL and MZL: Tafasitamab + Rituximab + Lenalidomide
  2. description
    Participants with FL and 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
    OG001
    title
    FL and MZL: Placebo + Rituximab + Lenalidomide
param Type
NUMBER
population Description
Overall Full Analysis Set. Per the SAP, the MZL population was considered as a subpopulation of interest, not a main analysis population. The FL and MZL populations were combined for analysis into the Overall population (main analysis population). Participants who achieved CR or PR were analyzed. 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
Overall 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