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NCT04154189 · OUTCOME

Percentage of Participants With Overall Survival at 1 Year or Month 12 (OS-1y)

A Study to Compare the Efficacy and Safety of Ifosfamide and Etoposide With or Without Lenvatinib in Children, Adolescents and Young Adults With Relapsed and Refractory Osteosarcoma · Source last updated 2024-07-22

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
Month 12 or 1 Year

What was measured

OS-1y was defined as the time from the date of randomization to the date of death from any cause assessed up to 1 year. OS was calculated using the Kaplan-Meier method.

Analysis population: FAS included all randomized participants regardless of the treatment actually received.

Groups in this outcome

Treatment Arm A: Lenvatinib + Ifosfamide + Etoposide

Participants received lenvatinib 14 mg/m\^2, capsules, orally, once daily, plus ifosfamide 3000 mg/m\^2/day, intravenously and etoposide 100 mg/m\^2/day, intravenously. Ifosfamide and etoposide were administered on Days 1 to 3 of each 21-day cycle for up to 5 cycles. Lenvatinib was administered in continuous 21-day cycles. Treatment continued until PD, development of unacceptable toxicity, participant choice, withdrawal of consent or discontinuation of study by the sponsor, whichever occurred first.

Treatment Arm B: Ifosfamide + Etoposide

Participants received ifosfamide 3000 mg/m\^2/day, intravenously and etoposide 100 mg/m\^2/day, intravenously on Days 1 to 3 of each 21-day cycle for up to 5 cycles. Participants who had PD per RECIST v1.1 were eligible for an optional lenvatinib treatment (14 mg/m\^2, capsules, orally, once daily in continuous 21-day cycles until next PD, development of unacceptable toxicity, participant choice, withdrawal of consent or discontinuation of study by the sponsor, whichever occurred first) plus any remaining cycles of chemotherapy if 5 cycles were not completed prior to PD.

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

Analysis denominator · Participants

GroupSource count
Treatment Arm A: Lenvatinib + Ifosfamide + Etoposide40
Treatment Arm B: Ifosfamide + Etoposide41

Reported measurements

Source class 1
Values in percentage of participants · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Treatment Arm A: Lenvatinib + Ifosfamide + Etoposide49.2Not reported28.567.0Not reported
Treatment Arm B: Ifosfamide + Etoposide72.1Not reported54.283.9Not reported

Source statistical analyses

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

  1. ci Lower Limit
    -47.6
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    1.9
    group Ids
    1. OG000
    2. OG001
    non Inferiority Comment
    Difference and 95% CI: difference of 2 Kaplan-Meier OS-1y rates and corresponding Greenwood standard errors.
    non Inferiority Type
    OTHER
    p Value
    0.0352
    p Value Comment
    One-sided P value
    param Type
    Difference in Percentage
    param Value
    -22.9
    statistical Method
    Kaplan Meier Method
Complete source fields
analyses
  1. ci Lower Limit
    -47.6
    ci Num Sides
    TWO_SIDED
    ci Pct Value
    95
    ci Upper Limit
    1.9
    group Ids
    1. OG000
    2. OG001
    non Inferiority Comment
    Difference and 95% CI: difference of 2 Kaplan-Meier OS-1y rates and corresponding Greenwood standard errors.
    non Inferiority Type
    OTHER
    p Value
    0.0352
    p Value Comment
    One-sided P value
    param Type
    Difference in Percentage
    param Value
    -22.9
    statistical Method
    Kaplan Meier Method
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        28.5
        upper Limit
        67.0
        value
        49.2
      2. group Id
        OG001
        lower Limit
        54.2
        upper Limit
        83.9
        value
        72.1
denoms
  1. counts
    1. group Id
      OG000
      value
      40
    2. group Id
      OG001
      value
      41
    units
    Participants
description
OS-1y was defined as the time from the date of randomization to the date of death from any cause assessed up to 1 year. OS was calculated using the Kaplan-Meier method.
dispersion Type
95% Confidence Interval
groups
  1. description
    Participants received lenvatinib 14 mg/m\^2, capsules, orally, once daily, plus ifosfamide 3000 mg/m\^2/day, intravenously and etoposide 100 mg/m\^2/day, intravenously. Ifosfamide and etoposide were administered on Days 1 to 3 of each 21-day cycle for up to 5 cycles. Lenvatinib was administered in continuous 21-day cycles. Treatment continued until PD, development of unacceptable toxicity, participant choice, withdrawal of consent or discontinuation of study by the sponsor, whichever occurred first.
    id
    OG000
    title
    Treatment Arm A: Lenvatinib + Ifosfamide + Etoposide
  2. description
    Participants received ifosfamide 3000 mg/m\^2/day, intravenously and etoposide 100 mg/m\^2/day, intravenously on Days 1 to 3 of each 21-day cycle for up to 5 cycles. Participants who had PD per RECIST v1.1 were eligible for an optional lenvatinib treatment (14 mg/m\^2, capsules, orally, once daily in continuous 21-day cycles until next PD, development of unacceptable toxicity, participant choice, withdrawal of consent or discontinuation of study by the sponsor, whichever occurred first) plus any remaining cycles of chemotherapy if 5 cycles were not completed prior to PD.
    id
    OG001
    title
    Treatment Arm B: Ifosfamide + Etoposide
param Type
NUMBER
population Description
FAS included all randomized participants regardless of the treatment actually received.
reporting Status
POSTED
time Frame
Month 12 or 1 Year
title
Percentage of Participants With Overall Survival at 1 Year or Month 12 (OS-1y)
type
SECONDARY
unit Of Measure
percentage of participants

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Preserved source evidence · Not medical advice