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NCT02257567 · OUTCOME

Phase II: Percentage of Participants With OR at PRA Based on PET-CT as Determined by IRC

A Study of Polatuzumab Vedotin (DCDS4501A) in Combination With Rituximab or Obinutuzumab Plus Bendamustine in Participants With Relapsed or Refractory Follicular or Diffuse Large B-Cell Lymphoma · Source last updated 2022-11-14

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
6 to 8 weeks after Cycle 6 Day 1 (cycle length is 21 days for DLBCL cohorts and 28 days for FL cohorts) or last dose of study drug (up to approximately 28 weeks)

What was measured

OR at PRA was defined as the percentage of participants with CR or PR at the PRA, as assessed by the IRC according to MLRC. Per MLRC, CR based on PET-CT= complete MR in lymph nodes and ELS with a score of 1, 2, or 3 with or without residual mass on 5PS, where 1=no uptake above background; 2=uptake ≤ mediastinum; 3=uptake mediastinum but ≤ liver; 4=uptake moderately \> liver; 5=uptake markedly higher than liver and/or new lesions; no new lesions and no evidence of FDG-avid disease in bone marrow. Bone marrow normal by morphology; if indeterminate, IHC negative. PR based on PET-CT was defined as partial MR in lymph nodes and ELS with a score of 4 or 5 with reduced uptake compared with baseline and residual mass(es) of any size at interim, residual uptake higher than uptake in normal bone marrow but reduced compared with baseline (diffuse uptake compatible with reactive changes from chemotherapy allowed).

Analysis population: ITT population included all randomized participants in Phase II irrespective of whether or not they received the study treatment. As pre-specified in the protocol data reported is combined for Arms G and H. Values have been rounded off to the nearest whole number.

Groups in this outcome

Arm A (Phase II Randomization): Pola+BR in FL

Participants with FL received pola, 1.8 mg/kg, as IV infusion on Day 2 of Cycle 1 (each cycle is 28 days), and thereafter on Day 1 of Cycles 2 to 6. Participants also received bendamustine 90 mg/m\^2, as IV infusion on Days 2 and 3 of Cycle 1, and thereafter on Days 1 and 2 of Cycles 2 to 6 and rituximab, 375 mg/m\^2, as IV infusion on Day 1 of Cycles 1 to 6, in combination with pola.

Arm B (Phase II Randomization): BR in FL

Participants with FL received bendamustine 90 mg/m\^2, as IV infusion on Days 2 and 3 of Cycle 1 (each cycle is 28 days), thereafter on Days 1 and 2 of Cycles 2 to 6 in combination with rituximab, 375 mg/m\^2, as IV infusion on Day 1 of Cycles 1 to 6.

Arm C (Phase II Randomization): Pola+BR in DLBCL

Participants with DLBCL received pola, 1.8 mg/kg, as IV infusion on Day 2 of Cycle 1 (each cycle is 21 days), and thereafter on Day 1 of Cycles 2 to 6. Participants also received bendamustine 90 mg/m\^2, as IV infusion on Days 2 and 3 of Cycle 1, and thereafter on Days 1 and 2 of Cycles 2 to 6 and rituximab, 375 mg/m\^2, as IV infusion on Day 1 of Cycles 1 to 6, in combination with pola.

Arm D (Phase II Randomization): BR in DLBCL

Participants with DLBCL received bendamustine 90 mg/m\^2, as IV infusion on Days 2 and 3 of Cycle 1 (each cycle is 21 days), thereafter on Days 1 and 2 of Cycles 2 to 6 in combination with rituximab, 375 mg/m\^2, as IV infusion on Day 1 of Cycles 1 to 6.

Arm E (Phase II Expansion): Pola+BG in FL

Participants with FL received pola, 1.8 mg/kg, as IV infusion on Day 2 of Cycle 1 (each cycle is 28 days), and thereafter on Day 1 of Cycles 2 to 6. Participants also received bendamustine 90 mg/m\^2, as IV infusion on Days 2 and 3 of Cycle 1, and thereafter on Days 1 and 2 of Cycles 2 to 6 and obinutuzumab 1000 mg, as IV infusion on Days 1, 8, and 15 of Cycle 1 and on Day 1 of Cycles 2 to 6 in combination with pola.

Arm F (Phase II Expansion): Pola+BG in DLBCL

Participants with DLBCL received pola, 1.8 mg/kg, as IV infusion on Day 2 of Cycle 1 (each cycle is 21 days), and thereafter on Day 1 of Cycles 2 to 6. Participants also received bendamustine 90 mg/m\^2, as IV infusion on Days 2 and 3 of Cycle 1, and thereafter on Days 1 and 2 of Cycles 2 to 6 and obinutuzumab 1000 mg, as IV infusion on Days 1, 8, and 15 of Cycle 1 and on Day 1 of Cycles 2 to 6 in combination with pola.

Arm G+H (Phase II NF Cohort): Pola+BR in DLBCL

Participants with DLBCL received pola (lyophilized formulation), 1.8 mg/kg, as IV infusion on Day 2 of Cycle 1 (each cycle is 21 days), and thereafter on Day 1 of Cycles 2 to 6. Participants also received bendamustine 90 mg/m\^2, as IV infusion on Days 2 and 3 of Cycle 1, and thereafter on Days 1 and 2 of Cycles 2 to 6 and rituximab, 375 mg/m\^2, as IV infusion on Day 1 of Cycles 1 to 6, in combination with pola.

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

Analysis denominator · Participants

GroupSource count
Arm A (Phase II Randomization): Pola+BR in FL39
Arm B (Phase II Randomization): BR in FL41
Arm C (Phase II Randomization): Pola+BR in DLBCL40
Arm D (Phase II Randomization): BR in DLBCL40
Arm E (Phase II Expansion): Pola+BG in FL20
Arm F (Phase II Expansion): Pola+BG in DLBCL21
Arm G+H (Phase II NF Cohort): Pola+BR in DLBCL106

Reported measurements

Source class 1
Values in percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Arm A (Phase II Randomization): Pola+BR in FL76.9Not reported60.6788.87Not reported
Arm B (Phase II Randomization): BR in FL73.2Not reported57.0685.78Not reported
Arm C (Phase II Randomization): Pola+BR in DLBCL42.5Not reported27.0459.11Not reported
Arm D (Phase II Randomization): BR in DLBCL17.5Not reported7.3432.78Not reported
Arm E (Phase II Expansion): Pola+BG in FL85.0Not reported62.1196.79Not reported
Arm F (Phase II Expansion): Pola+BG in DLBCL38.1Not reported18.1161.56Not reported
Arm G+H (Phase II NF Cohort): Pola+BR in DLBCL43.4Not reported33.8053.37Not reported

Source statistical analyses

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

  1. ci Lower Limit
    -15.14
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    22.11
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.6574
    param Type
    Difference in Response Rates
    param Value
    3.75
    statistical Method
    Cochran-Mantel-Haenszel
  2. ci Lower Limit
    4.89
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    42.63
    group Ids
    1. OG002
    2. OG003
    non Inferiority Type
    SUPERIORITY
    p Value
    0.0128
    param Type
    Difference in Response Rates
    param Value
    25.00
    statistical Method
    Cochran-Mantel-Haenszel
Complete source fields
analyses
  1. ci Lower Limit
    -15.14
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    22.11
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.6574
    param Type
    Difference in Response Rates
    param Value
    3.75
    statistical Method
    Cochran-Mantel-Haenszel
  2. ci Lower Limit
    4.89
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    42.63
    group Ids
    1. OG002
    2. OG003
    non Inferiority Type
    SUPERIORITY
    p Value
    0.0128
    param Type
    Difference in Response Rates
    param Value
    25.00
    statistical Method
    Cochran-Mantel-Haenszel
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        60.67
        upper Limit
        88.87
        value
        76.9
      2. group Id
        OG001
        lower Limit
        57.06
        upper Limit
        85.78
        value
        73.2
      3. group Id
        OG002
        lower Limit
        27.04
        upper Limit
        59.11
        value
        42.5
      4. group Id
        OG003
        lower Limit
        7.34
        upper Limit
        32.78
        value
        17.5
      5. group Id
        OG004
        lower Limit
        62.11
        upper Limit
        96.79
        value
        85.0
      6. group Id
        OG005
        lower Limit
        18.11
        upper Limit
        61.56
        value
        38.1
      7. group Id
        OG006
        lower Limit
        33.80
        upper Limit
        53.37
        value
        43.4
denoms
  1. counts
    1. group Id
      OG000
      value
      39
    2. group Id
      OG001
      value
      41
    3. group Id
      OG002
      value
      40
    4. group Id
      OG003
      value
      40
    5. group Id
      OG004
      value
      20
    6. group Id
      OG005
      value
      21
    7. group Id
      OG006
      value
      106
    units
    Participants
description
OR at PRA was defined as the percentage of participants with CR or PR at the PRA, as assessed by the IRC according to MLRC. Per MLRC, CR based on PET-CT= complete MR in lymph nodes and ELS with a score of 1, 2, or 3 with or without residual mass on 5PS, where 1=no uptake above background; 2=uptake ≤ mediastinum; 3=uptake mediastinum but ≤ liver; 4=uptake moderately \> liver; 5=uptake markedly higher than liver and/or new lesions; no new lesions and no evidence of FDG-avid disease in bone marrow. Bone marrow normal by morphology; if indeterminate, IHC negative. PR based on PET-CT was defined as partial MR in lymph nodes and ELS with a score of 4 or 5 with reduced uptake compared with baseline and residual mass(es) of any size at interim, residual uptake higher than uptake in normal bone marrow but reduced compared with baseline (diffuse uptake compatible with reactive changes from chemotherapy allowed).
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants with FL received pola, 1.8 mg/kg, as IV infusion on Day 2 of Cycle 1 (each cycle is 28 days), and thereafter on Day 1 of Cycles 2 to 6. Participants also received bendamustine 90 mg/m\^2, as IV infusion on Days 2 and 3 of Cycle 1, and thereafter on Days 1 and 2 of Cycles 2 to 6 and rituximab, 375 mg/m\^2, as IV infusion on Day 1 of Cycles 1 to 6, in combination with pola.
    id
    OG000
    title
    Arm A (Phase II Randomization): Pola+BR in FL
  2. description
    Participants with FL received bendamustine 90 mg/m\^2, as IV infusion on Days 2 and 3 of Cycle 1 (each cycle is 28 days), thereafter on Days 1 and 2 of Cycles 2 to 6 in combination with rituximab, 375 mg/m\^2, as IV infusion on Day 1 of Cycles 1 to 6.
    id
    OG001
    title
    Arm B (Phase II Randomization): BR in FL
  3. description
    Participants with DLBCL received pola, 1.8 mg/kg, as IV infusion on Day 2 of Cycle 1 (each cycle is 21 days), and thereafter on Day 1 of Cycles 2 to 6. Participants also received bendamustine 90 mg/m\^2, as IV infusion on Days 2 and 3 of Cycle 1, and thereafter on Days 1 and 2 of Cycles 2 to 6 and rituximab, 375 mg/m\^2, as IV infusion on Day 1 of Cycles 1 to 6, in combination with pola.
    id
    OG002
    title
    Arm C (Phase II Randomization): Pola+BR in DLBCL
  4. description
    Participants with DLBCL received bendamustine 90 mg/m\^2, as IV infusion on Days 2 and 3 of Cycle 1 (each cycle is 21 days), thereafter on Days 1 and 2 of Cycles 2 to 6 in combination with rituximab, 375 mg/m\^2, as IV infusion on Day 1 of Cycles 1 to 6.
    id
    OG003
    title
    Arm D (Phase II Randomization): BR in DLBCL
  5. description
    Participants with FL received pola, 1.8 mg/kg, as IV infusion on Day 2 of Cycle 1 (each cycle is 28 days), and thereafter on Day 1 of Cycles 2 to 6. Participants also received bendamustine 90 mg/m\^2, as IV infusion on Days 2 and 3 of Cycle 1, and thereafter on Days 1 and 2 of Cycles 2 to 6 and obinutuzumab 1000 mg, as IV infusion on Days 1, 8, and 15 of Cycle 1 and on Day 1 of Cycles 2 to 6 in combination with pola.
    id
    OG004
    title
    Arm E (Phase II Expansion): Pola+BG in FL
  6. description
    Participants with DLBCL received pola, 1.8 mg/kg, as IV infusion on Day 2 of Cycle 1 (each cycle is 21 days), and thereafter on Day 1 of Cycles 2 to 6. Participants also received bendamustine 90 mg/m\^2, as IV infusion on Days 2 and 3 of Cycle 1, and thereafter on Days 1 and 2 of Cycles 2 to 6 and obinutuzumab 1000 mg, as IV infusion on Days 1, 8, and 15 of Cycle 1 and on Day 1 of Cycles 2 to 6 in combination with pola.
    id
    OG005
    title
    Arm F (Phase II Expansion): Pola+BG in DLBCL
  7. description
    Participants with DLBCL received pola (lyophilized formulation), 1.8 mg/kg, as IV infusion on Day 2 of Cycle 1 (each cycle is 21 days), and thereafter on Day 1 of Cycles 2 to 6. Participants also received bendamustine 90 mg/m\^2, as IV infusion on Days 2 and 3 of Cycle 1, and thereafter on Days 1 and 2 of Cycles 2 to 6 and rituximab, 375 mg/m\^2, as IV infusion on Day 1 of Cycles 1 to 6, in combination with pola.
    id
    OG006
    title
    Arm G+H (Phase II NF Cohort): Pola+BR in DLBCL
param Type
NUMBER
population Description
ITT population included all randomized participants in Phase II irrespective of whether or not they received the study treatment. As pre-specified in the protocol data reported is combined for Arms G and H. Values have been rounded off to the nearest whole number.
reporting Status
POSTED
time Frame
6 to 8 weeks after Cycle 6 Day 1 (cycle length is 21 days for DLBCL cohorts and 28 days for FL cohorts) or last dose of study drug (up to approximately 28 weeks)
title
Phase II: Percentage of Participants With OR at PRA Based on PET-CT as Determined by IRC
type
SECONDARY
unit Of Measure
percentage of participants

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Preserved source evidence · Not medical advice