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NCT01802632 · OUTCOME

Progression-Free Survival (PFS) for Dose Expansion Population

AZD9291 First Time In Patients Ascending Dose Study · Source last updated 2026-04-20

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
RECIST tumour assessments every 6 weeks from randomisation until objective disease progression, up to approximately 21 months (at time of analysis)

What was measured

Per Response Evaluation Criteria in Solid Tumours (RECIST v1.1) assessed by MRI or CT: Progressive Disease (PD): \>= 20% increase in the sum of diameters of TLs and an absolute increase in sum of diameters of \>=5mm (compared to the previous minimum sum) or progression of NTLs or a new lesion. PFS is the time from date of first dose until the date of PD (by independent central review) or death (by any cause in the absence of progression) regardless of whether the patient withdrew from AZD9291 therapy or received another anti-cancer therapy prior to progression. Patients who had not progressed or died at the time of analysis were censored at the time of the latest date of assessment from their last evaluable RECIST 1.1 assessment.

Analysis population: All pre-treated EGFR T790M mutation positive (by central testing) patients who received at least one dose of AZD9291.

Groups in this outcome

Dose Expansion

Pre-treated EGFR T790M mutation positive (by central testing) population. Dose groups were expanded to include more patients.

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

Analysis denominator · Participants

GroupSource count
Dose Expansion175

Reported measurements

Source class 1
Values in months · Interval/dispersion: 95% Confidence Interval
GroupValueSpreadLowerUpperComment
Dose Expansion9.7Not reported8.312.5Not reported
Complete source fields
classes
  1. categories
    1. measurements
      1. group Id
        OG000
        lower Limit
        8.3
        upper Limit
        12.5
        value
        9.7
denoms
  1. counts
    1. group Id
      OG000
      value
      175
    units
    Participants
description
Per Response Evaluation Criteria in Solid Tumours (RECIST v1.1) assessed by MRI or CT: Progressive Disease (PD): \>= 20% increase in the sum of diameters of TLs and an absolute increase in sum of diameters of \>=5mm (compared to the previous minimum sum) or progression of NTLs or a new lesion. PFS is the time from date of first dose until the date of PD (by independent central review) or death (by any cause in the absence of progression) regardless of whether the patient withdrew from AZD9291 therapy or received another anti-cancer therapy prior to progression. Patients who had not progressed or died at the time of analysis were censored at the time of the latest date of assessment from their last evaluable RECIST 1.1 assessment.
dispersion Type
95% Confidence Interval
groups
  1. description
    Pre-treated EGFR T790M mutation positive (by central testing) population. Dose groups were expanded to include more patients.
    id
    OG000
    title
    Dose Expansion
param Type
MEDIAN
population Description
All pre-treated EGFR T790M mutation positive (by central testing) patients who received at least one dose of AZD9291.
reporting Status
POSTED
time Frame
RECIST tumour assessments every 6 weeks from randomisation until objective disease progression, up to approximately 21 months (at time of analysis)
title
Progression-Free Survival (PFS) for Dose Expansion Population
type
SECONDARY
unit Of Measure
months

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Preserved source evidence · Not medical advice