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NCT01969838 · OUTCOME

Total Symptom Score (TSS) Response Rate at Week 24

Momelotinib Versus Ruxolitinib in Subjects With Myelofibrosis · Source last updated 2023-05-12

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

Measure
COUNT_OF_PARTICIPANTS
Unit
Participants
Interval / dispersion
Not reported
Time frame
Week 24

What was measured

Total symptom score (TSS) is defined as the percentage of participants who achieved a ≥50% reduction in TSS at Week 24 versus baseline as measured by the modified Myeloproliferative Neoplasm Symptom Assessment Form (MPN-SAF) v2.0 diary. Response rate was calculated using the average of the daily TSS from a consecutive 28-day period prior to Week 24, which had ≥20 daily TSS available. The modified MPN-SAF patient-reported outcome instrument consisted of 8 items assessing worst daily incidence of tiredness, filling up quickly, abdominal discomfort, night sweats, itching, bone pain, pain under ribs on left side, and inactivity. Scoring of the Total Symptom Score (TSS), in this study was based on 7 of these items, (range of 0-70,), excluding inactivity. These items assess the impact experienced by the participant in the 24 hours prior to completing the questionnaire. All items are measured using a 0 to 10 Numeric Rating Scale, with 0 corresponding to "Absent" and 10 being the worse

Analysis population: TSS rate analysis at Week 24 only included participants with TSS \> 0 at baseline or with TSS = 0 at baseline but with TSS \> 0 or missing at Week 24.

Groups in this outcome

Momelotinib (MMB)

Participants received momelotinib plus placebo to match ruxolitinib. Momelotinib tablets were administered orally once daily at a starting dose of 200 mg. Additional available strengths included 100 mg and 150 mg. Placebo to match ruxolitinib tablets were administered orally twice daily.

Ruxolitinib (RUX)

Participants received ruxolitinib plus placebo to match momelotinib. Ruxolitinib tablets were administered orally twice daily. The dose ranged from 5 to 20 mg BID and was dependent on platelet count, creatinine clearance, and transaminase levels. Placebo to match momelotinib tablets were administered orally once daily.

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

Analysis denominator · Participants

GroupSource count
Momelotinib (MMB)211
Ruxolitinib (RUX)211

Reported measurements

Source class 1

Responder

Values in Participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Momelotinib (MMB)60Not reportedNot reportedNot reportedNot reported
Ruxolitinib (RUX)89Not reportedNot reportedNot reportedNot reported

Nonresponder

Values in Participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
Momelotinib (MMB)151Not reportedNot reportedNot reportedNot reported
Ruxolitinib (RUX)122Not reportedNot reportedNot reportedNot reported

Source statistical analyses

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

  1. ci Lower Limit
    -0.08
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.08
    group Ids
    1. OG000
    2. OG001
    non Inferiority Comment
    To evaluate the noninferiority of MMB over RUX, a conventional 2-sided CI was calculated for the difference in TSS response rate at Week 24: delta = prob(MMB) - 0.67\*prob(RUX). If the lower bound of the 2-sided 95% CI for delta was greater than 0, MMB was declared to be noninferior to RUX in TSS response rate at Week 24. The 2-sided 95% CI of delta was calculated based on stratum-adjusted Cochran-Mantel-Haenszel (CMH) proportions. This is called the noninferiority proportion difference.
    non Inferiority Type
    NON_INFERIORITY
    p Value
    0.98
    param Type
    Proportion Difference - Stratified CMH
    param Value
    0.00
    statistical Method
    Cochran-Mantel-Haenszel
Complete source fields
analyses
  1. ci Lower Limit
    -0.08
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.08
    group Ids
    1. OG000
    2. OG001
    non Inferiority Comment
    To evaluate the noninferiority of MMB over RUX, a conventional 2-sided CI was calculated for the difference in TSS response rate at Week 24: delta = prob(MMB) - 0.67\*prob(RUX). If the lower bound of the 2-sided 95% CI for delta was greater than 0, MMB was declared to be noninferior to RUX in TSS response rate at Week 24. The 2-sided 95% CI of delta was calculated based on stratum-adjusted Cochran-Mantel-Haenszel (CMH) proportions. This is called the noninferiority proportion difference.
    non Inferiority Type
    NON_INFERIORITY
    p Value
    0.98
    param Type
    Proportion Difference - Stratified CMH
    param Value
    0.00
    statistical Method
    Cochran-Mantel-Haenszel
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        value
        60
      2. group Id
        OG001
        value
        89
      title
      Responder
    2. measurements
      1. group Id
        OG000
        value
        151
      2. group Id
        OG001
        value
        122
      title
      Nonresponder
denoms
  1. counts
    1. group Id
      OG000
      value
      211
    2. group Id
      OG001
      value
      211
    units
    Participants
description
Total symptom score (TSS) is defined as the percentage of participants who achieved a ≥50% reduction in TSS at Week 24 versus baseline as measured by the modified Myeloproliferative Neoplasm Symptom Assessment Form (MPN-SAF) v2.0 diary. Response rate was calculated using the average of the daily TSS from a consecutive 28-day period prior to Week 24, which had ≥20 daily TSS available. The modified MPN-SAF patient-reported outcome instrument consisted of 8 items assessing worst daily incidence of tiredness, filling up quickly, abdominal discomfort, night sweats, itching, bone pain, pain under ribs on left side, and inactivity. Scoring of the Total Symptom Score (TSS), in this study was based on 7 of these items, (range of 0-70,), excluding inactivity. These items assess the impact experienced by the participant in the 24 hours prior to completing the questionnaire. All items are measured using a 0 to 10 Numeric Rating Scale, with 0 corresponding to "Absent" and 10 being the worse
groups
  1. description
    Participants received momelotinib plus placebo to match ruxolitinib. Momelotinib tablets were administered orally once daily at a starting dose of 200 mg. Additional available strengths included 100 mg and 150 mg. Placebo to match ruxolitinib tablets were administered orally twice daily.
    id
    OG000
    title
    Momelotinib (MMB)
  2. description
    Participants received ruxolitinib plus placebo to match momelotinib. Ruxolitinib tablets were administered orally twice daily. The dose ranged from 5 to 20 mg BID and was dependent on platelet count, creatinine clearance, and transaminase levels. Placebo to match momelotinib tablets were administered orally once daily.
    id
    OG001
    title
    Ruxolitinib (RUX)
param Type
COUNT_OF_PARTICIPANTS
population Description
TSS rate analysis at Week 24 only included participants with TSS \> 0 at baseline or with TSS = 0 at baseline but with TSS \> 0 or missing at Week 24.
reporting Status
POSTED
time Frame
Week 24
title
Total Symptom Score (TSS) Response Rate at Week 24
type
SECONDARY
unit Of Measure
Participants

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Preserved source evidence · Not medical advice