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NCT04195750 · OUTCOME

Time to True Deterioration (TTD) in Health-Related Quality-of-Life (HRQoL) Using the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ-C30) Items 29 and 30 Combined Score

A Study of Belzutifan (MK-6482) Versus Everolimus in Participants With Advanced Renal Cell Carcinoma (MK-6482-005) · Source last updated 2026-05-14

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
Up to approximately 39 months

What was measured

The EORTC QLQ-C30 is a cancer specific health-related quality-of life (QoL) questionnaire. Participant responses to the questions regarding Global Health Status (GHS; "How would you rate your overall health during the past week?") and Quality of Life (QoL; "How would you rate your overall quality of life during the past week?") are scored on a 7-point scale (1= Very poor to 7=Excellent), then summed. Summed raw scores were standardized by linear transformation so that scores ranged from 0 to 100, with a higher score indicating a better overall outcome. TTD was defined as the time from baseline to the first onset of a ≥10-point decrease with confirmation by the subsequent visit of a ≥10-point decrease in Items 29 and 30 scale scores. If the first deterioration is at the last PRO assessment timepoint at the time of analysis, then no confirmation is required. A longer TTD indicates a better outcome. TTD is reported based on the product-limit (Kaplan-Meier) method for censored data.

Analysis population: Per protocol, the analysis population consisted of all randomized participants who have at least one assessment available for EORTC QLQ-C30 and have received at least one dose of the study intervention; and had data available for this TTD in HRQoL outcome using EORTC QLQ-C30. Per protocol, participants enrolled in the Safety Run-In were not randomized and not included in the protocol-specified analyses for any of the outcome measures.

Groups in this outcome

Belzutifan

Randomized participants received 120 mg of belzutifan orally once daily (QD), until disease progression or discontinuation.

Everolimus

Randomized participants received 10 mg of Everolimus orally QD, until disease progression or discontinuation.

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

Analysis denominator · Participants

GroupSource count
Belzutifan351
Everolimus333

Reported measurements

Source class 1
Values in Months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Belzutifan19.35Not reported11.89NANA = Upper limit not reached at time of data cut-off due to insufficient number of participants with an event.
Everolimus10.19Not reported6.4712.98Not reported

Source statistical analyses

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

  1. ci Lower Limit
    0.58
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.96
    estimate Comment
    Based on Cox regression model with Efron's method of tie handling with treatment as a covariate stratified by IMDC Risk Category and Number of prior VEGF/VEGF-Receptor Targeted Therapies for RCC.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    OTHER
    p Value
    0.0185
    param Type
    Hazard Ratio (HR)
    param Value
    0.75
    statistical Comment
    Two-sided p-value based on log-rank test stratified by IMDC Risk Category and Number of prior VEGF/VEGF-Receptor Targeted Therapies for RCC.
    statistical Method
    Log Rank
Complete source fields
analyses
  1. ci Lower Limit
    0.58
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    0.96
    estimate Comment
    Based on Cox regression model with Efron's method of tie handling with treatment as a covariate stratified by IMDC Risk Category and Number of prior VEGF/VEGF-Receptor Targeted Therapies for RCC.
    group Ids
    1. OG000
    2. OG001
    non Inferiority Type
    OTHER
    p Value
    0.0185
    param Type
    Hazard Ratio (HR)
    param Value
    0.75
    statistical Comment
    Two-sided p-value based on log-rank test stratified by IMDC Risk Category and Number of prior VEGF/VEGF-Receptor Targeted Therapies for RCC.
    statistical Method
    Log Rank
classes
  1. categories
    1. measurements
      1. comment
        NA = Upper limit not reached at time of data cut-off due to insufficient number of participants with an event.
        group Id
        OG000
        lower Limit
        11.89
        upper Limit
        NA
        value
        19.35
      2. group Id
        OG001
        lower Limit
        6.47
        upper Limit
        12.98
        value
        10.19
denoms
  1. counts
    1. group Id
      OG000
      value
      351
    2. group Id
      OG001
      value
      333
    units
    Participants
description
The EORTC QLQ-C30 is a cancer specific health-related quality-of life (QoL) questionnaire. Participant responses to the questions regarding Global Health Status (GHS; "How would you rate your overall health during the past week?") and Quality of Life (QoL; "How would you rate your overall quality of life during the past week?") are scored on a 7-point scale (1= Very poor to 7=Excellent), then summed. Summed raw scores were standardized by linear transformation so that scores ranged from 0 to 100, with a higher score indicating a better overall outcome. TTD was defined as the time from baseline to the first onset of a ≥10-point decrease with confirmation by the subsequent visit of a ≥10-point decrease in Items 29 and 30 scale scores. If the first deterioration is at the last PRO assessment timepoint at the time of analysis, then no confirmation is required. A longer TTD indicates a better outcome. TTD is reported based on the product-limit (Kaplan-Meier) method for censored data.
dispersion Type
95% Confidence Interval
groups
  1. description
    Randomized participants received 120 mg of belzutifan orally once daily (QD), until disease progression or discontinuation.
    id
    OG000
    title
    Belzutifan
  2. description
    Randomized participants received 10 mg of Everolimus orally QD, until disease progression or discontinuation.
    id
    OG001
    title
    Everolimus
param Type
MEDIAN
population Description
Per protocol, the analysis population consisted of all randomized participants who have at least one assessment available for EORTC QLQ-C30 and have received at least one dose of the study intervention; and had data available for this TTD in HRQoL outcome using EORTC QLQ-C30. Per protocol, participants enrolled in the Safety Run-In were not randomized and not included in the protocol-specified analyses for any of the outcome measures.
reporting Status
POSTED
time Frame
Up to approximately 39 months
title
Time to True Deterioration (TTD) in Health-Related Quality-of-Life (HRQoL) Using the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ-C30) Items 29 and 30 Combined Score
type
SECONDARY
unit Of Measure
Months

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