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NCT02579863 · OUTCOME

Overall Response Rate (ORR) Evaluated According to the IMWG Response Criteria by CAC Blinded Central Review

Study of Lenalidomide and Dexamethasone With or Without Pembrolizumab (MK-3475) in Participants With Newly Diagnosed Treatment Naive Multiple Myeloma (MK-3475-185/KEYNOTE-185) · Source last updated 2021-07-20

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 30 months

What was measured

ORR was based on participants who achieved at least a partial response (stringent complete response \[sCR\]+complete response \[CR\]+very good partial response \[VGPR\]+partial response \[PR\]) according to the IMWG. CR = negative immunofixation of serum and urine AND disappearance of any soft tissue plasmacytomas AND \<5% plasmacytomas in the bone marrow; sCR=stringent complete response, CR as above PLUS normal serum free light-chain (FLC) assay ratio and absence of clonal cells in bone marrow by immunohistochemistry or immunofluorescence; VGPR = serum and urine M-component detectable by immunofixation but not on electrophoresis OR ≥ 90% reduction in serum M-component plus urine M-component \<100 mg/24 hr; PR = ≥50% reduction of serum M-protein and reduction in 24-hour urinary M-protein by ≥90% or to \<200 mg/24 hours. The data cutoff date was July 9, 2018.

Analysis population: The analysis population included all randomized participants. Participants were included in the treatment group to which they were randomized.

Groups in this outcome

Pembrolizumab + Lenalidomide + Dexamethasone

Participants received pembrolizumab 200 mg intravenously (IV) on Day 1 of each 21-day cycle PLUS lenalidomide 25 mg orally (PO) on Days 1 to 21 of each 21-day treatment cycle, and dexamethasone 40 mg PO on Days 1, 8, 15 and 22 of each 28-day cycle for up to 18 cycles.

Lenolidomide + Dexamethasone

Participants received lenalidomide 25 mg PO on Days 1 to 21 of each 21-day treatment cycle, and dexamethasone 40 mg PO on Days 1, 8, 15 and 22 of each 28-day cycle for up to 18 cycles.

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

Analysis denominator · Participants

GroupSource count
Pembrolizumab + Lenalidomide + Dexamethasone156
Lenolidomide + Dexamethasone154

Reported measurements

Source class 1
Values in Percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Pembrolizumab + Lenalidomide + Dexamethasone74.4Not reported66.881.0Not reported
Lenolidomide + Dexamethasone68.8Not reported60.976.0Not reported

Source statistical analyses

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

  1. ci Lower Limit
    -4.3
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    15.8
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    other Analysis Description
    Based on Miettinen \& Nurminen method stratified by 'Age' (\<75 years vs \>= 75 years) and 'ISS stage' (I or II vs. III); If there were no participants in one of the treatment groups involved in a comparison for a particular stratum, then that stratum was excluded from the treatment comparison.
    p Value
    0.13102
    param Type
    Difference in % vs SOC
    param Value
    5.8
    statistical Comment
    H0: difference in % =0 versus H1: difference in % \> 0.
    statistical Method
    One-sided p-value for testing
Complete source fields
analyses
  1. ci Lower Limit
    -4.3
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    15.8
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    SUPERIORITY
    other Analysis Description
    Based on Miettinen \& Nurminen method stratified by 'Age' (\<75 years vs \>= 75 years) and 'ISS stage' (I or II vs. III); If there were no participants in one of the treatment groups involved in a comparison for a particular stratum, then that stratum was excluded from the treatment comparison.
    p Value
    0.13102
    param Type
    Difference in % vs SOC
    param Value
    5.8
    statistical Comment
    H0: difference in % =0 versus H1: difference in % \> 0.
    statistical Method
    One-sided p-value for testing
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        66.8
        upper Limit
        81.0
        value
        74.4
      2. group Id
        OG001
        lower Limit
        60.9
        upper Limit
        76.0
        value
        68.8
denoms
  1. counts
    1. group Id
      OG000
      value
      156
    2. group Id
      OG001
      value
      154
    units
    Participants
description
ORR was based on participants who achieved at least a partial response (stringent complete response \[sCR\]+complete response \[CR\]+very good partial response \[VGPR\]+partial response \[PR\]) according to the IMWG. CR = negative immunofixation of serum and urine AND disappearance of any soft tissue plasmacytomas AND \<5% plasmacytomas in the bone marrow; sCR=stringent complete response, CR as above PLUS normal serum free light-chain (FLC) assay ratio and absence of clonal cells in bone marrow by immunohistochemistry or immunofluorescence; VGPR = serum and urine M-component detectable by immunofixation but not on electrophoresis OR ≥ 90% reduction in serum M-component plus urine M-component \<100 mg/24 hr; PR = ≥50% reduction of serum M-protein and reduction in 24-hour urinary M-protein by ≥90% or to \<200 mg/24 hours. The data cutoff date was July 9, 2018.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants received pembrolizumab 200 mg intravenously (IV) on Day 1 of each 21-day cycle PLUS lenalidomide 25 mg orally (PO) on Days 1 to 21 of each 21-day treatment cycle, and dexamethasone 40 mg PO on Days 1, 8, 15 and 22 of each 28-day cycle for up to 18 cycles.
    id
    OG000
    title
    Pembrolizumab + Lenalidomide + Dexamethasone
  2. description
    Participants received lenalidomide 25 mg PO on Days 1 to 21 of each 21-day treatment cycle, and dexamethasone 40 mg PO on Days 1, 8, 15 and 22 of each 28-day cycle for up to 18 cycles.
    id
    OG001
    title
    Lenolidomide + Dexamethasone
param Type
NUMBER
population Description
The analysis population included all randomized participants. Participants were included in the treatment group to which they were randomized.
reporting Status
POSTED
time Frame
Up to approximately 30 months
title
Overall Response Rate (ORR) Evaluated According to the IMWG Response Criteria by CAC Blinded Central Review
type
SECONDARY
unit Of Measure
Percentage of participants

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Preserved source evidence · Not medical advice