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NCT04154189 · OUTCOME

Percentage of Participants With PFS at 1 Year or Month 12 (PFS-1y Rate) by IIR Assessment

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

PFS-1y rate as assessed by IIR was defined as the percentage of participants who were alive and without PD at 1 year from randomization date using RECIST v1.1. PD was defined as at least a 20% increase or 5 mm increase in the sum of diameters of target lesions (taking as reference the smallest sum on study) recorded since the treatment started or the appearance of 1 or more new lesions. PFS-1y rate was estimated using 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 + EtoposideNANot reportedNANANumber and 95% confidence interval data could not be estimated because all participants had an event or were censored before Month 12.
Treatment Arm B: Ifosfamide + Etoposide14.9Not reported1.144.5Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. comment
        Number and 95% confidence interval data could not be estimated because all participants had an event or were censored before Month 12.
        group Id
        OG000
        lower Limit
        NA
        upper Limit
        NA
        value
        NA
      2. group Id
        OG001
        lower Limit
        1.1
        upper Limit
        44.5
        value
        14.9
denoms
  1. counts
    1. group Id
      OG000
      value
      40
    2. group Id
      OG001
      value
      41
    units
    Participants
description
PFS-1y rate as assessed by IIR was defined as the percentage of participants who were alive and without PD at 1 year from randomization date using RECIST v1.1. PD was defined as at least a 20% increase or 5 mm increase in the sum of diameters of target lesions (taking as reference the smallest sum on study) recorded since the treatment started or the appearance of 1 or more new lesions. PFS-1y rate was estimated using 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 PFS at 1 Year or Month 12 (PFS-1y Rate) by IIR Assessment
type
SECONDARY
unit Of Measure
percentage of participants

Download exact source JSON → · Snapshot ctgov-results-191f4516d4760045304b24a0

Preserved source evidence · Not medical advice