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NCT03837899 · OUTCOME

Dose-Expansion Phase Only: Objective Response Rate (ORR)

Durvalumab and Tremelimumab for Pediatric Malignancies · Source last updated 2026-07-07

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
Not reported
Time frame
From first dose of study treatment until death or up to approximately 4 years (clinical DCO of 20 Apr 2023)

What was measured

ORR as per RECIST 1.1 was defined as the percentage of participants with at least 1 investigator-assessed visit response of complete response (CR) or partial response (PR) that was subsequently confirmed on another scan not less than 4 weeks after visit observed response. CR was defined as disappearance of all target lesions (TLs), any pathological lymph nodes selected as TLs with reduction in short axis to \< 10 millimeter (mm). PR was defined as at least a 30% decrease in the sum of diameters of TLs, with reference to baseline sum of diameters as long as criteria for PD are not met.

Analysis population: The evaluable for response analysis set is the subset of participants in the FAS who had measurable disease (as per RECIST 1.1) at baseline and had at least 1 follow-up scan measuring all required target lesions and had been followed for at least 3 cycles or measurable disease (as per RECIST 1.1) at baseline and progressed or died in the absence of a follow-up scan.

Groups in this outcome

SARCOMA: Durvalumab 30 mg/kg + Tremelimumab 1mg/kg

Participants with osteosarcoma and Ewing sarcoma, rhabdomyosarcoma, non rhabdomyosarcoma soft tissue sarcoma, and other sarcomas were included in this arm. Participants were administered durvalumab 30 mg/kg IV in combination with tremelimumab 1 mg/kg IV in Cycles 1-4 every 28 days. From Cycle 5 onwards participants were administered durvalumab 30 mg/kg every 28 days until clinical or confirmed disease progression or until any of other discontinuation criterion was met, whichever occurred first.

STO: Durvalumab 30 mg/kg + Tremelimumab 1mg/kg

Participants with solid tumor other (STO) were included in this arm. Participants were administered durvalumab 30 mg/kg IV in combination with tremelimumab 1 mg/kg IV in Cycles 1-4 every 28 days. From Cycle 5 onwards participants were administered durvalumab 30 mg/kg every 28 days until clinical or confirmed disease progression or until any of other discontinuation criterion was met, whichever came occurred first.

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

Analysis denominator · Participants

GroupSource count
SARCOMA: Durvalumab 30 mg/kg + Tremelimumab 1mg/kg11
STO: Durvalumab 30 mg/kg + Tremelimumab 1mg/kg9

Reported measurements

Source class 1
Values in percentage of participants · Interval/dispersion: Not reported
GroupValueSpreadLowerUpperComment
SARCOMA: Durvalumab 30 mg/kg + Tremelimumab 1mg/kg0Not reportedNot reportedNot reportedNot reported
STO: Durvalumab 30 mg/kg + Tremelimumab 1mg/kg11.1Not reportedNot reportedNot reportedNot reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        value
        0
      2. group Id
        OG001
        value
        11.1
denoms
  1. counts
    1. group Id
      OG000
      value
      11
    2. group Id
      OG001
      value
      9
    units
    Participants
description
ORR as per RECIST 1.1 was defined as the percentage of participants with at least 1 investigator-assessed visit response of complete response (CR) or partial response (PR) that was subsequently confirmed on another scan not less than 4 weeks after visit observed response. CR was defined as disappearance of all target lesions (TLs), any pathological lymph nodes selected as TLs with reduction in short axis to \< 10 millimeter (mm). PR was defined as at least a 30% decrease in the sum of diameters of TLs, with reference to baseline sum of diameters as long as criteria for PD are not met.
groups
  1. description
    Participants with osteosarcoma and Ewing sarcoma, rhabdomyosarcoma, non rhabdomyosarcoma soft tissue sarcoma, and other sarcomas were included in this arm. Participants were administered durvalumab 30 mg/kg IV in combination with tremelimumab 1 mg/kg IV in Cycles 1-4 every 28 days. From Cycle 5 onwards participants were administered durvalumab 30 mg/kg every 28 days until clinical or confirmed disease progression or until any of other discontinuation criterion was met, whichever occurred first.
    id
    OG000
    title
    SARCOMA: Durvalumab 30 mg/kg + Tremelimumab 1mg/kg
  2. description
    Participants with solid tumor other (STO) were included in this arm. Participants were administered durvalumab 30 mg/kg IV in combination with tremelimumab 1 mg/kg IV in Cycles 1-4 every 28 days. From Cycle 5 onwards participants were administered durvalumab 30 mg/kg every 28 days until clinical or confirmed disease progression or until any of other discontinuation criterion was met, whichever came occurred first.
    id
    OG001
    title
    STO: Durvalumab 30 mg/kg + Tremelimumab 1mg/kg
param Type
NUMBER
population Description
The evaluable for response analysis set is the subset of participants in the FAS who had measurable disease (as per RECIST 1.1) at baseline and had at least 1 follow-up scan measuring all required target lesions and had been followed for at least 3 cycles or measurable disease (as per RECIST 1.1) at baseline and progressed or died in the absence of a follow-up scan.
reporting Status
POSTED
time Frame
From first dose of study treatment until death or up to approximately 4 years (clinical DCO of 20 Apr 2023)
title
Dose-Expansion Phase Only: Objective Response Rate (ORR)
type
PRIMARY
unit Of Measure
percentage of participants

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

Preserved source evidence · Not medical advice