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NCT02257567 · OUTCOME

Phase II: Percentage of Participants With OR at PRA Based on CT Only 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 based on MLRC. Per MLRC, CR based on CT was defined as complete radiologic response in lymph nodes and ELS with target nodes/nodal masses regressing to ≤ 1.5 cm in LDi and no ELS of disease organ enlargement regressing to normal; no new lesions; bone marrow normal by morphology, if indeterminate, IHC negative. PR per CT only was defined as partial remission in lymph nodes and ELS with ≥50% decrease SPD of up to 6 target measurable lymph nodes and extranodal sites, absent/normal/regressed but with no increase in non-measured lesions, spleen regressing by ≥50% in length beyond normal it, no new sites of lesions. The analysis was done 6-8 weeks after Cycle 6, Day 1 (each cycle is 21 days for DLBCL cohorts and 28 days for FL cohorts).

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 FL74.4Not reported57.8786.96Not reported
Arm B (Phase II Randomization): BR in FL80.5Not reported65.1391.18Not reported
Arm C (Phase II Randomization): Pola+BR in DLBCL40.0Not reported24.8656.67Not reported
Arm D (Phase II Randomization): BR in DLBCL15.0Not reported5.7129.84Not reported
Arm E (Phase II Expansion): Pola+BG in FL80.0Not reported56.3494.27Not 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 DLBCL41.5Not reported32.0251.49Not reported

Source statistical analyses

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

  1. ci Lower Limit
    -24.14
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    12.12
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.4835
    param Type
    Difference in Response Rates
    param Value
    -6.13
    statistical Method
    Cochran-Mantel-Haenszel
  2. ci Lower Limit
    5.39
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    42.33
    group Ids
    1. OG002
    2. OG003
    non Inferiority Type
    SUPERIORITY
    p Value
    0.0096
    param Type
    Difference in Response Rates
    param Value
    25.00
    statistical Method
    Cochran-Mantel-Haenszel
Complete source fields
analyses
  1. ci Lower Limit
    -24.14
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    12.12
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    p Value
    0.4835
    param Type
    Difference in Response Rates
    param Value
    -6.13
    statistical Method
    Cochran-Mantel-Haenszel
  2. ci Lower Limit
    5.39
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    42.33
    group Ids
    1. OG002
    2. OG003
    non Inferiority Type
    SUPERIORITY
    p Value
    0.0096
    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
        57.87
        upper Limit
        86.96
        value
        74.4
      2. group Id
        OG001
        lower Limit
        65.13
        upper Limit
        91.18
        value
        80.5
      3. group Id
        OG002
        lower Limit
        24.86
        upper Limit
        56.67
        value
        40.0
      4. group Id
        OG003
        lower Limit
        5.71
        upper Limit
        29.84
        value
        15.0
      5. group Id
        OG004
        lower Limit
        56.34
        upper Limit
        94.27
        value
        80.0
      6. group Id
        OG005
        lower Limit
        18.11
        upper Limit
        61.56
        value
        38.1
      7. group Id
        OG006
        lower Limit
        32.02
        upper Limit
        51.49
        value
        41.5
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 based on MLRC. Per MLRC, CR based on CT was defined as complete radiologic response in lymph nodes and ELS with target nodes/nodal masses regressing to ≤ 1.5 cm in LDi and no ELS of disease organ enlargement regressing to normal; no new lesions; bone marrow normal by morphology, if indeterminate, IHC negative. PR per CT only was defined as partial remission in lymph nodes and ELS with ≥50% decrease SPD of up to 6 target measurable lymph nodes and extranodal sites, absent/normal/regressed but with no increase in non-measured lesions, spleen regressing by ≥50% in length beyond normal it, no new sites of lesions. The analysis was done 6-8 weeks after Cycle 6, Day 1 (each cycle is 21 days for DLBCL cohorts and 28 days for FL cohorts).
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 CT Only as Determined by IRC
type
SECONDARY
unit Of Measure
percentage of participants

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Preserved source evidence · Not medical advice