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A Study of IRESSA Treatment Beyond Progression in Addition to Chemotherapy Versus Chemotherapy Alone

A Phase III Randomised, Double Blind, Placebo Controlled, Parallel, Multicentre Study to Assess the Efficacy and Safety of Continuing IRESSA 250 mg in Addition to Chemotherapy Versus Chemotherapy Alone in Patients Who Have Epidermal Growth Factor Receptor (EGFR) Mutation Positive Locally Advanced or Metastatic Non-Small Cell Lung Cancer (NSCLC) and Have Progressed on First Line IRESSA

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01544179
Acronym
IMPRESS
Enrollment
265
Registered
2012-03-05
Start date
2012-03-15
Completion date
2019-11-20
Last updated
2020-09-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Non-Small Cell Lung Cancer

Keywords

Non Small Cell Lung Cancer, Gefitinib, Pemetrexed, Treatment Beyond Progression

Brief summary

The purpose of this study is to assess the efficacy and safety of gefitinib in patients who have progressed on first line gefitinib, comparing continuing gefitinib in addition to cisplatin plus pemetrexed combination chemotherapy versus cisplatin plus pemetrexed combination chemotherapy alone.

Detailed description

A Phase III Randomised, Double blind, Placebo controlled, Parallel, Multicentre Study to Assess the Efficacy and Safety of continuing IRESSA 250 mg in addition to Chemotherapy versus Chemotherapy alone in Patients who have Epidermal Growth Factor Receptor (EGFR) Mutation Positive Locally advanced or Metastatic Non-Small Cell Lung Cancer (NSCLC) and have progressed on First Line IRESSA.

Interventions

DRUGGefitinib

Investigational Drug

DRUGPlacebo

Matching placebo as comparator

DRUGPemetrexed

Chemotherapy (concomitant therapy)

DRUGCisplatin

Chemotherapy (concomitant therapy)

Sponsors

AstraZeneca
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 130 Years
Healthy volunteers
No

Inclusion criteria

* Male or female patients aged 18 years or older (For Japan only- male or female patients aged 20 years or older) * Cytological or histological confirmation of NSCLC other than predominantly squamous cell histology with an activating EGFR TK mutation as determined locally * Patients with documented 'acquired resistance' on first line gefitinib * Patients suitable to start cisplatin based pemetrexed combination chemotherapy. * Provision of informed consent prior to any study specific procedures.

Exclusion criteria

* Prior chemotherapy or other systemic anti-cancer treatment (excluding gefitinib). Palliative bone radiotherapy must be completed at least 2 weeks before start of study treatment with no persistent radiation toxicity). * Past medical history of interstitial lung disease, drug-induced interstitial disease, radiation pneumonitis which required steroid treatment or any evidence of clinically active interstitial lung disease * Other co-existing malignancies or malignancies diagnosed within the last 5 years, with the exception of basal cell carcinoma or cervical cancer in situ or completely resected intramucosal gastric cancer * Any evidence of severe of uncontrolled systemic disease Treatment with an investigational drug within 4 weeks before randomization

Design outcomes

Primary

MeasureTime frameDescription
Progression-Free Survival (Site Read, Investigator Assessment)Radiologic evaluations were carried out every 6 weeks from randomization until documented progression, withdrawal of consent, loss to follow up, death or the primary data cut off (DCO) for the analysis, assessed up to 50 weeksPFS is the time from randomisation until the date of objective disease progression as defined by Response Evaluation Criteria In Solid Tumours (RECIST version 1.1) or death (by any cause in the absence of progression). Progression is defined using RECIST (v1.1), as at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5mm.
Median Progression-Free Survival (Site Read, Investigator Assessment)Radiologic evaluations were carried out every 6 weeks from randomization until documented progression, withdrawal of consent, loss to follow up, death or the primary data cut off (DCO) for the analysis, assessed up to 50 weeksPFS is the time from randomisation until the date of objective disease progression as defined by Response Evaluation Criteria In Solid Tumours (RECIST version 1.1) or death (by any cause in the absence of progression). Progression is defined using RECIST (v1.1), as at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5mm.

Secondary

MeasureTime frameDescription
Objective Response Rate (ORR) (Site Read Data)Radiologic evaluations were carried out every 6 weeks from randomization until documented progression, withdrawal of consent, loss to follow up, death or the primary data cut off (DCO) for the analysis.ORR rate is defined as the number (%) of subjects with at least one visit response of Complete Response (CR) or Partial Response (PR) , as defined by Response Evaluation Criteria in Solid Tumours (RECIST v1.1) for target lesions and assessed by CT or MRI. CR, Disappearance of all target lesions; PR, ≥30% decrease in the sum of the longest diameter of target lesions. Data obtained up until progression, or last evaluable assessment in the absence of progression, was included in the assessment of ORR.
Disease Control Rate (DCR)Radiologic evaluations were carried out every 6 weeks from randomization until documented progression, withdrawal of consent, loss to follow up, death or the primary data cut off (DCO) for the analysis.DCR is the percentage of patients who achieve disease control at 6 weeks following randomisation. DCR is defined as a Best Objective Response (BOR) of Complete Response, Partial Response or Stable Disease, as defined by Response Evaluation Criteria in Solid Tumours (RECIST v1.1) for target lesions and assessed by CT or MRI. CR, Disappearance of all target lesions; PR, ≥30% decrease in the sum of the longest diameter of target lesions; SD, neither sufficient shrinkage to qualify for PR not sufficient increase to qualify for Progressive Disease (PD); PD, ≥20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study, and the sum must have shown an absolute increase of ≥5mm
Improvement in Trial Outcome IndexAt visits 2-8, then every 6 weeks until progression, at progression or treatment discontinuation, and every 8 weeks after progression until PFS analysis data cut off.An improvement is defined as a change from baseline of ≥ +6 (0-84 score range). Measured by the Functional Assessment of Cancer Therapy for Lung Cancer (FACT-L) questionnaire.
Time to Worsening in Trial Outcome IndexAt visits 2-8, then every 6 weeks until progression, at progression or treatment discontinuation, and every 8 weeks after progression until PFS analysis data cut off.A worsening is defined as a change from baseline of ≤ -6 (0-84 score range). Measured by the Functional Assessment of Cancer Therapy for Lung Cancer (FACT-L) questionnaire
Median Overall Survival (OS) at Time of PFS AnalysisBaseline and then every 6 weeks after randomization until objective disease progression. OS is then assessed 8 weekly following PFS progression up to PFS analysis data cut off.
Time to Worsening in FACT-L Total ScoreAt visits 2-8, then every 6 weeks until progression, at progression or treatment discontinuation, and every 8 weeks after progression until PFS analysis data cut off.A worsening is defined as a change from baseline of ≤ -6 (0-136 score range). Measured by the Functional Assessment of Cancer Therapy for Lung Cancer (FACT-L) questionnaire
Improvement in Lung Cancer SubscaleAt visits 2-8, then every 6 weeks until progression, at progression or treatment discontinuation, and every 8 weeks after progression until PFS analysis data cut off.An improvement is defined as a change from baseline of ≥ +2 (0-28 score range). Measured by the Functional Assessment of Cancer Therapy for Lung Cancer (FACT-L) questionnaire
Time to Worsening in Lung Cancer SubscaleAt visits 2-8, then every 6 weeks until progression, at progression or treatment discontinuation, and every 8 weeks after progression until PFS analysis data cut off.A worsening is defined as a change from baseline of ≤ -2 (0-28 score range). Measured by the Functional Assessment of Cancer Therapy for Lung Cancer (FACT-L) questionnaire
Improvement in FACT-L Total ScoreAt visits 2-8, then every 6 weeks until progression, at progression or treatment discontinuation, and every 8 weeks after progression until PFS analysis data cut off.An improvement is defined as a change from baseline of ≥ +6 (0-136 score range). Measured by the Functional Assessment of Cancer Therapy for Lung Cancer (FACT-L) questionnaire
Overall Survival (OS)Following progression survival data was collected every 8 weeks until documentation of death, withdrawal of consent, loss to follow-up or the final data cut-off, whichever occurs first.OS is the time from the date of randomisation until death due to any cause. Any subject not known to have died at the time of analysis will be censored based on the last recorded date on which the subject was known to be alive.

Countries

China, France, Germany, Hong Kong, Hungary, Italy, Japan, Russia, South Korea, Spain, Taiwan

Participant flow

Recruitment details

A total of 265 (100%) patients randomised were from 61 centres in 11 countries: 133 patients to the gefitinib group and132 patients to the placebo group. Patients received maximum of 6 cycles cisplatin plus pemetrexed chemotherapy in addition to the randomised treatment (gefitinib or placebo).

Pre-assignment details

265 patients were randomised. Randomised patients had epidermal growth factor receptor (EGFR) mutation-positive locally advanced or metastatic non-small cell lung cancer (NSCLC) and who had progressed on first-line gefitinib treatment

Participants by arm

ArmCount
Gefitinib
Gefitinib 250mg and cisplatin plus pemetrexed combination chemotherapy
133
Placebo
Placebo and cisplatin plus pemetrexed combination chemotherapy.
132
Total265

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event01
Overall StudyDeath5037
Overall StudyEligibility criteria not fulfilled10
Overall StudyLost to Follow-up01
Overall StudyWithdrawal by Subject127

Baseline characteristics

CharacteristicGefitinibPlaceboTotal
Age, Customized
<65 years
90 Participants98 Participants188 Participants
Age, Customized
>=65 years
43 Participants34 Participants77 Participants
Race/Ethnicity, Customized
Asian
104 Participants102 Participants206 Participants
Race/Ethnicity, Customized
Black or African American
0 Participants1 Participants1 Participants
Race/Ethnicity, Customized
White
29 Participants29 Participants58 Participants
Sex: Female, Male
Female
87 Participants84 Participants171 Participants
Sex: Female, Male
Male
46 Participants48 Participants94 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
125 / 132129 / 132
serious
Total, serious adverse events
38 / 13228 / 132

Outcome results

Primary

Median Progression-Free Survival (Site Read, Investigator Assessment)

PFS is the time from randomisation until the date of objective disease progression as defined by Response Evaluation Criteria In Solid Tumours (RECIST version 1.1) or death (by any cause in the absence of progression). Progression is defined using RECIST (v1.1), as at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5mm.

Time frame: Radiologic evaluations were carried out every 6 weeks from randomization until documented progression, withdrawal of consent, loss to follow up, death or the primary data cut off (DCO) for the analysis, assessed up to 50 weeks

Population: Full analysis set (all treated patients)

ArmMeasureValue (MEDIAN)
GefitinibMedian Progression-Free Survival (Site Read, Investigator Assessment)5.4 Months
PlaceboMedian Progression-Free Survival (Site Read, Investigator Assessment)5.4 Months
Primary

Progression-Free Survival (Site Read, Investigator Assessment)

PFS is the time from randomisation until the date of objective disease progression as defined by Response Evaluation Criteria In Solid Tumours (RECIST version 1.1) or death (by any cause in the absence of progression). Progression is defined using RECIST (v1.1), as at least a 20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of at least 5mm.

Time frame: Radiologic evaluations were carried out every 6 weeks from randomization until documented progression, withdrawal of consent, loss to follow up, death or the primary data cut off (DCO) for the analysis, assessed up to 50 weeks

Population: Full analysis set (all treated patients)

ArmMeasureValue (NUMBER)
GefitinibProgression-Free Survival (Site Read, Investigator Assessment)98 Patients with a progression event
PlaceboProgression-Free Survival (Site Read, Investigator Assessment)107 Patients with a progression event
p-value: 0.27395% CI: [0.65, 1.13]Cox Proportional Hazards
Secondary

Disease Control Rate (DCR)

DCR is the percentage of patients who achieve disease control at 6 weeks following randomisation. DCR is defined as a Best Objective Response (BOR) of Complete Response, Partial Response or Stable Disease, as defined by Response Evaluation Criteria in Solid Tumours (RECIST v1.1) for target lesions and assessed by CT or MRI. CR, Disappearance of all target lesions; PR, ≥30% decrease in the sum of the longest diameter of target lesions; SD, neither sufficient shrinkage to qualify for PR not sufficient increase to qualify for Progressive Disease (PD); PD, ≥20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study, and the sum must have shown an absolute increase of ≥5mm

Time frame: Radiologic evaluations were carried out every 6 weeks from randomization until documented progression, withdrawal of consent, loss to follow up, death or the primary data cut off (DCO) for the analysis.

Population: Full analysis set

ArmMeasureValue (NUMBER)
GefitinibDisease Control Rate (DCR)84.2 Percentage of Participants
PlaceboDisease Control Rate (DCR)78.8 Percentage of Participants
p-value: 0.30895% CI: [0.74, 2.62]Regression, Logistic
Secondary

Improvement in FACT-L Total Score

An improvement is defined as a change from baseline of ≥ +6 (0-136 score range). Measured by the Functional Assessment of Cancer Therapy for Lung Cancer (FACT-L) questionnaire

Time frame: At visits 2-8, then every 6 weeks until progression, at progression or treatment discontinuation, and every 8 weeks after progression until PFS analysis data cut off.

Population: Evaluable-for-QoL

ArmMeasureValue (NUMBER)
GefitinibImprovement in FACT-L Total Score44 Number of patients improving
PlaceboImprovement in FACT-L Total Score49 Number of patients improving
p-value: 0.72595% CI: [0.54, 1.53]Regression, Logistic
Secondary

Improvement in Lung Cancer Subscale

An improvement is defined as a change from baseline of ≥ +2 (0-28 score range). Measured by the Functional Assessment of Cancer Therapy for Lung Cancer (FACT-L) questionnaire

Time frame: At visits 2-8, then every 6 weeks until progression, at progression or treatment discontinuation, and every 8 weeks after progression until PFS analysis data cut off.

Population: Evaluable-for-QoL

ArmMeasureValue (NUMBER)
GefitinibImprovement in Lung Cancer Subscale54 Number of participants improving
PlaceboImprovement in Lung Cancer Subscale55 Number of participants improving
p-value: 0.95995% CI: [0.61, 1.68]Regression, Logistic
Secondary

Improvement in Trial Outcome Index

An improvement is defined as a change from baseline of ≥ +6 (0-84 score range). Measured by the Functional Assessment of Cancer Therapy for Lung Cancer (FACT-L) questionnaire.

Time frame: At visits 2-8, then every 6 weeks until progression, at progression or treatment discontinuation, and every 8 weeks after progression until PFS analysis data cut off.

Population: Evaluable-for-QoL

ArmMeasureValue (NUMBER)
GefitinibImprovement in Trial Outcome Index36 Number of participants improving
PlaceboImprovement in Trial Outcome Index39 Number of participants improving
p-value: 0.7795% CI: [0.53, 1.59]Regression, Logistic
Secondary

Median Overall Survival (OS) at Time of PFS Analysis

Time frame: Baseline and then every 6 weeks after randomization until objective disease progression. OS is then assessed 8 weekly following PFS progression up to PFS analysis data cut off.

Population: Full analysis set

ArmMeasureValue (MEDIAN)
GefitinibMedian Overall Survival (OS) at Time of PFS Analysis14.8 Months
PlaceboMedian Overall Survival (OS) at Time of PFS Analysis17.2 Months
p-value: 0.02995% CI: [1.05, 2.52]Cox Proportional Hazards
Secondary

Objective Response Rate (ORR) (Site Read Data)

ORR rate is defined as the number (%) of subjects with at least one visit response of Complete Response (CR) or Partial Response (PR) , as defined by Response Evaluation Criteria in Solid Tumours (RECIST v1.1) for target lesions and assessed by CT or MRI. CR, Disappearance of all target lesions; PR, ≥30% decrease in the sum of the longest diameter of target lesions. Data obtained up until progression, or last evaluable assessment in the absence of progression, was included in the assessment of ORR.

Time frame: Radiologic evaluations were carried out every 6 weeks from randomization until documented progression, withdrawal of consent, loss to follow up, death or the primary data cut off (DCO) for the analysis.

Population: Full analysis set

ArmMeasureValue (NUMBER)
GefitinibObjective Response Rate (ORR) (Site Read Data)31.6 Percentage of Participants
PlaceboObjective Response Rate (ORR) (Site Read Data)34.1 Percentage of Participants
p-value: 0.7695% CI: [0.55, 1.55]Regression, Logistic
Secondary

Overall Survival (OS)

OS is the time from the date of randomisation until death due to any cause. Any subject not known to have died at the time of analysis will be censored based on the last recorded date on which the subject was known to be alive.

Time frame: Following progression survival data was collected every 8 weeks until documentation of death, withdrawal of consent, loss to follow-up or the final data cut-off, whichever occurs first.

Population: Full analysis set

ArmMeasureValue (NUMBER)
GefitinibOverall Survival (OS)50 Number of patients with an OS event
PlaceboOverall Survival (OS)37 Number of patients with an OS event
Secondary

Time to Worsening in FACT-L Total Score

A worsening is defined as a change from baseline of ≤ -6 (0-136 score range). Measured by the Functional Assessment of Cancer Therapy for Lung Cancer (FACT-L) questionnaire

Time frame: At visits 2-8, then every 6 weeks until progression, at progression or treatment discontinuation, and every 8 weeks after progression until PFS analysis data cut off.

Population: Evaluable-for-QoL

ArmMeasureValue (MEDIAN)
GefitinibTime to Worsening in FACT-L Total Score12.0 Weeks
PlaceboTime to Worsening in FACT-L Total Score8.9 Weeks
p-value: 0.57595% CI: [0.69, 1.23]Cox Proportional Hazards
Secondary

Time to Worsening in Lung Cancer Subscale

A worsening is defined as a change from baseline of ≤ -2 (0-28 score range). Measured by the Functional Assessment of Cancer Therapy for Lung Cancer (FACT-L) questionnaire

Time frame: At visits 2-8, then every 6 weeks until progression, at progression or treatment discontinuation, and every 8 weeks after progression until PFS analysis data cut off.

Population: Evaluable-for-QoL

ArmMeasureValue (MEDIAN)
GefitinibTime to Worsening in Lung Cancer Subscale14.6 Weeks
PlaceboTime to Worsening in Lung Cancer Subscale9.1 Weeks
p-value: 0.43795% CI: [0.66, 1.2]Cox Proportional Hazards
Secondary

Time to Worsening in Trial Outcome Index

A worsening is defined as a change from baseline of ≤ -6 (0-84 score range). Measured by the Functional Assessment of Cancer Therapy for Lung Cancer (FACT-L) questionnaire

Time frame: At visits 2-8, then every 6 weeks until progression, at progression or treatment discontinuation, and every 8 weeks after progression until PFS analysis data cut off.

Population: Evaluable-for-QoL

ArmMeasureValue (MEDIAN)
GefitinibTime to Worsening in Trial Outcome Index12.1 Weeks
PlaceboTime to Worsening in Trial Outcome Index9.4 Weeks
p-value: 0.50795% CI: [0.68, 1.21]Cox Proportional Hazards

Source: ClinicalTrials.gov · Data processed: Mar 17, 2026