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NCT04680052 · OUTCOME

FL Population: Overall Response Rate (Percentage of Participants Who Achieved a CR/PR Per the Lugano Classification at Any Time During the Study But Before the First PD and Before/at the Start of a New Antilymphoma Treatment) 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
percentage of participants
Interval / dispersion
95% Confidence Interval
Time frame
up to approximately 34 months

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. The 95% confidence intervals were calculated using the Clopper-Pearson method.

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 + Lenalidomide273
FL: Placebo + Rituximab + Lenalidomide275
MZL: Tafasitamab + Rituximab + Lenalidomide0
MZL: Placebo + Rituximab + Lenalidomide0

Reported measurements

Source class 1
Values in percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
FL: Tafasitamab + Rituximab + Lenalidomide83.5Not reported78.5787.72Not reported
FL: Placebo + Rituximab + Lenalidomide72.4Not reported66.6777.56Not reported

Source statistical analyses

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

  1. ci Lower Limit
    1.30
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    3.02
    estimate Comment
    The strata information was based on the data obtained from the interactive response technology that was used for randomization.
    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
    0.0014
    param Type
    Odds Ratio (OR)
    param Value
    2.0
    statistical Method
    stratified Cochran-Mantel-Haenszel
Complete source fields
analyses
  1. ci Lower Limit
    1.30
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    3.02
    estimate Comment
    The strata information was based on the data obtained from the interactive response technology that was used for randomization.
    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
    0.0014
    param Type
    Odds Ratio (OR)
    param Value
    2.0
    statistical Method
    stratified Cochran-Mantel-Haenszel
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        78.57
        upper Limit
        87.72
        value
        83.5
      2. group Id
        OG001
        lower Limit
        66.67
        upper Limit
        77.56
        value
        72.4
denoms
  1. counts
    1. group Id
      OG000
      value
      273
    2. group Id
      OG001
      value
      275
    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. The 95% confidence intervals were calculated using the Clopper-Pearson method.
reporting Status
POSTED
time Frame
up to approximately 34 months
title
FL Population: Overall Response Rate (Percentage of Participants Who Achieved a CR/PR Per the Lugano Classification at Any Time During the Study But Before the First PD and Before/at the Start of a New Antilymphoma Treatment) by Investigator Assessment
type
SECONDARY
unit Of Measure
percentage of participants

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Preserved source evidence · Not medical advice