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NCT01335685 · OUTCOME

Duration of Response (DOR) (Phase 2)

Study of Oral Ixazomib in Combination With Melphalan and Prednisone in Participants With Newly Diagnosed Multiple Myeloma · Source last updated 2018-01-23

Results reported by the registry submitting party. Population, time horizon, units and missing values must be read together.

Measure
MEDIAN
Unit
months
Interval / dispersion
95% Confidence Interval
Time frame
From the time from the date of first documentation of PR or better to the date of first documented disease progression for up to 5.5 years

What was measured

DOR is defined as time of first documentation of a confirmed PR or better response to first documented PD or start of alternative therapy. DOR was presented for those achieving CR+VGPR+PR. Per IMWG criteria, CR:1)Negative immunofixation on serum+urine, 2)Disappearance of any soft tissue plasmacytomas, 3)\< 5% plasma cells in bone marrow. VGPR: Serum+urine M-protein detectable by immunofixation but not on electrophoresis/ 90% or \>reduction in serum M-protein + urine M-protein level \< 100 mg/ 24-hour. PR:1)≥50% reduction of serum M-protein and reduction in 24-hour urinary M-protein by ≥90% or to \<200 mg/24-hour. If serum+urine M-protein are unmeasurable, ≥50% decrease in difference between involved and uninvolved FLC levels is required. Else, ≥50% reduction in plasma cells is required in place of M-protein, provided baseline bone marrow plasma cell percentage was ≥30%. In addition, if present at baseline, a ≥50% reduction in size of soft tissue plasmacytomas is required.

Analysis population: The safety population consisted of participants who received at least 1 dose of any study drug.

Groups in this outcome

Arm B: Ixazomib 4.0 mg (RP2D)

Ixazomib 4.0 mg, capsules, orally, on Days 1, 8, 15 plus melphalan 6 mg/m\^2, tablets, orally, on Days 1 to 4 and prednisone 60 mg/m\^2, tablets, orally, on Days 1 to 4 in 28-day cycle for up to 13 cycles in induction phase followed by ixazomib at dose last tolerated in induction, orally, on Days 1, 8, 15 in 28-day cycle up to 12 cycles or until disease progression or unacceptable toxicity if deriving benefit in maintenance phase (up to 49 maintenance cycles; overall up to 61 cycles \[58 months\]).

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 B: Ixazomib 4.0 mg (RP2D)23

Reported measurements

Source class 1
Values in months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Arm B: Ixazomib 4.0 mg (RP2D)25.2Not reported4.6NALower limit of CI was not reached due to low number of participants with events.
Complete source fields
classes
  1. categories
    1. measurements
      1. comment
        Lower limit of CI was not reached due to low number of participants with events.
        group Id
        OG000
        lower Limit
        4.6
        upper Limit
        NA
        value
        25.2
denoms
  1. counts
    1. group Id
      OG000
      value
      23
    units
    Participants
description
DOR is defined as time of first documentation of a confirmed PR or better response to first documented PD or start of alternative therapy. DOR was presented for those achieving CR+VGPR+PR. Per IMWG criteria, CR:1)Negative immunofixation on serum+urine, 2)Disappearance of any soft tissue plasmacytomas, 3)\< 5% plasma cells in bone marrow. VGPR: Serum+urine M-protein detectable by immunofixation but not on electrophoresis/ 90% or \>reduction in serum M-protein + urine M-protein level \< 100 mg/ 24-hour. PR:1)≥50% reduction of serum M-protein and reduction in 24-hour urinary M-protein by ≥90% or to \<200 mg/24-hour. If serum+urine M-protein are unmeasurable, ≥50% decrease in difference between involved and uninvolved FLC levels is required. Else, ≥50% reduction in plasma cells is required in place of M-protein, provided baseline bone marrow plasma cell percentage was ≥30%. In addition, if present at baseline, a ≥50% reduction in size of soft tissue plasmacytomas is required.
dispersion Type
95% Confidence Interval
groups
  1. description
    Ixazomib 4.0 mg, capsules, orally, on Days 1, 8, 15 plus melphalan 6 mg/m\^2, tablets, orally, on Days 1 to 4 and prednisone 60 mg/m\^2, tablets, orally, on Days 1 to 4 in 28-day cycle for up to 13 cycles in induction phase followed by ixazomib at dose last tolerated in induction, orally, on Days 1, 8, 15 in 28-day cycle up to 12 cycles or until disease progression or unacceptable toxicity if deriving benefit in maintenance phase (up to 49 maintenance cycles; overall up to 61 cycles \[58 months\]).
    id
    OG000
    title
    Arm B: Ixazomib 4.0 mg (RP2D)
param Type
MEDIAN
population Description
The safety population consisted of participants who received at least 1 dose of any study drug.
reporting Status
POSTED
time Frame
From the time from the date of first documentation of PR or better to the date of first documented disease progression for up to 5.5 years
title
Duration of Response (DOR) (Phase 2)
type
SECONDARY
unit Of Measure
months

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Preserved source evidence · Not medical advice