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A Global Study to Assess the Effects of MEDI4736 (Durvalumab), Given as Monotherapy or in Combination With Tremelimumab Determined by PD-L1 Expression Versus Standard of Care in Patients With Locally Advanced or Metastatic Non Small Cell Lung Cancer

A Phase III, Open Label, Randomised, Multi-centre, International Study of MEDI4736, Given as Monotherapy or in Combination With Tremelimumab Determined by PD-L1 Expression Versus Standard of Care in Patients With Locally Advanced or Metastatic Non-Small Cell Lung Cancer (Stage IIIB-IV) Who Have Received at Least Two Prior Systemic Treatment Regimens Including One Platinum Based Chemotherapy Regimen and Do Not Have Known EGFR TK Activating Mutations or ALK Rearrangements (ARCTIC).

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02352948
Acronym
ARCTIC
Enrollment
597
Registered
2015-02-02
Start date
2015-01-13
Completion date
2023-08-30
Last updated
2024-07-26

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 NSCLC

Brief summary

This study is a Phase III, randomised, open label, multi-centre study assessing the efficacy and safety of MEDI4736 (durvalumab) versus Standard of Care in NSCLC patients with PD-L1 positive tumours and the combination of MEDI4736 (durvalumab) plus tremelimumab (MEDI4736+treme) versus Standard of Care in NSCLC patients with PD-L1-negative tumours in the treatment of male and female patients with locally advanced or metastatic NSCLC (Stage IIIB-IV), who have received at least 2 prior systemic treatment regimens including 1 platinum-based chemotherapy regimen for NSCLC. Patients with known EGFR (Epidermal growth factor receptor) tyrosine kinase (TK) activating mutations and anaplastic lymphoma kinase (ALK) rearrangements are not eligible for the study (prospective testing is not planned within this study). The Standard of Care options are: an EGFR tyrosine kinase inhibitor (erlotinib \[TARCEVA®\]), gemcitabine or vinorelbine (NAVELBINE®)

Detailed description

The study has an umbrella design with 2 sub-studies: sub-study A (randomizing patients with PD-L1 positive tumours 1:1 into MEDI4736 (durvalumab) vs. Standard of Care) and sub-study B (randomizing patients with PD-L1 negative tumours 2:3:1:2 into MEDI4736 (durvalumab) vs. MEDI4736 (durvalumab) plus tremelimumab vs. tremelimumab vs. Standard of Care. The two substudies may have different durations of recruitment periods due to differences in patient population (PD-L1 expression). They may not run concurrently with start and completion of recruitment potentially occurring at different time points.

Interventions

DRUGGemcitabine

Gemcitabine by intravenous infusion. Administered at a dose of 1000 mg/m2 iv over 30 minutes on Days 1, 8, and 15 of a 28-day cycle.

MEDI4736 (durvalumab) treatment by intravenous infusion

DRUGVinorelbine

Vinorelbine by intravenous infusion. Administered at a dose of 30 mg/m2 iv on Days 1, 8, 15 and 22 of a 28-day cycle.

DRUGErlotinib

Erlotinib administered at a dose of 150 mg once daily as a tablet for oral administration

DRUGMEDI4736 (durvalumab) in combination with tremelimumab (anti-CTLA4)

MEDI4736 (durvalumab) in combination with tremelimumab (anti-CTLA4) treatment by intravenous infusion

DRUGtremelimumab (anti-CTLA4)

tremelimumab (anti-CTLA4) treatment by intravenous infusion

Sponsors

AstraZeneca
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Aged at least 18 years * Documented evidence of NSCLC (Stage IIIB/ IV disease) * Disease progression or recurrence after both a platinum-based chemotherapy regimen and at least 1 additional regimen for treatment of NSCLC * World Health Organization (WHO) Performance Status of 0 or 1 * Estimated life expectancy more than 12 weeks

Exclusion criteria

* Prior exposure to any anti-PD-1 or anti-PD-L1 antibody or anti-CTLA4 * Brain metastases or spinal cord compression unless asymptomatic, treated and stable (not requiring steroids) * Active or prior documented autoimmune disease within the past 2 years * Evidence of severe or uncontrolled systemic disease, including active bleeding diatheses or active infections including hepatitis B, C and HIV * Any unresolved toxicity CTCAE (Common Terminology Criteria of Adverse Events) \>Grade 2 from previous anti-cancer therapy * Known EGFR TK activating mutations or ALK rearrangements * Any prior Grade ≥3 immune-related adverse event (irAE) while receiving any previous immunotherapy agent, or any unresolved irAE \>Grade 1 * Active or prior documented inflammatory bowel disease (eg, Crohn's disease, ulcerative colitis)

Design outcomes

Primary

MeasureTime frameDescription
Overall Survival (OS)From randomization (Day 1) until death due to any cause, approximately 36 monthsThe OS was defined as the time from the date of randomization until death due to any cause.
Progression-Free Survival (PFS)Tumour scans performed at baseline then every ~8 weeks up to 48 weeks, then every ~12 weeks thereafter until confirmed disease progression. Assessed up to a maximum of approximately 3 years.The PFS was defined as the time from the date of randomization until the date of objective disease progression or death (by any cause in the absence of progression) regardless of whether the participant withdrew from randomized therapy or received another anti-cancer therapy prior to progression. The PFS was determined by Investigator assessments according to response evaluation criteria in solid tumours (RECIST) version 1.1. PD was defined as at least a 20% increase in the sum of diameters of target lesions and an absolute increase of at least 5 millimeter (mm) or progression of non-target lesions or the appearance of a new lesion

Secondary

MeasureTime frameDescription
PFS, Contribution of the Components Analysis of Sub-study BTumour scans performed at baseline then every ~8 weeks up to 48 weeks, then every ~12 weeks thereafter until confirmed disease progression. Assessed up to a maximum of approximately 3 years.The PFS was defined as the time from the date of randomization until the date of objective disease progression or death (by any cause in the absence of progression) regardless of whether the participant withdrew from randomized therapy or received another anti-cancer therapy prior to progression. The PFS was determined by Investigator assessments according to RECIST v1.1. PD was defined as at least a 20% increase in the sum of diameters of target lesions and an absolute increase of at least 5 millimeter (mm) or progression of non-target lesions or the appearance of a new lesion
Objective Response Rate (ORR)Tumour scans performed at baseline then every ~8 weeks up to 48 weeks, then every ~12 weeks thereafter until confirmed disease progression. Assessed up to a maximum of approximately 3 years.The ORR was defined as the percentage of participants with at least 1 visit response of complete response (CR) or partial response (PR) among ITT participants who had measurable disease at baseline. CR was defined as disappearance of all target lesions (any pathological lymph nodes selected as target lesions must have a reduction in short axis to \<10 mm) and PR was defined as at least a 30% decrease in the sum of diameters of target lesions (taking as reference the baseline sum of diameters as long as criteria for PD are not met). The ORR was measured using Investigator assessments according to RECIST v1.1.
Duration of Response (DoR)Tumour scans performed at baseline then every ~8 weeks up to 48 weeks, then every ~12 weeks thereafter until confirmed disease progression. Assessed up to a maximum of approximately 3 years.The DoR was defined as the time from the date of first documented response until the first date of documented progression or death in the absence of disease progression. The DoR was determined by Investigator assessments according to RECIST v1.1. PD was defined as at least a 20% increase in the sum of diameters of target lesions and an absolute increase of at least 5 millimeter (mm) or progression of non-target lesions or the appearance of a new lesion
OS, Contribution of the Components Analysis of Sub-study BFrom randomization (Day 1) until death due to any cause, approximately 36 monthsThe OS was defined as the time from the date of randomization until death due to any cause.
Percentage of Participants Alive and Progression Free at 12 Months (APF12)Tumour scans performed at baseline then every ~8 weeks up to 12 months.The APF12 was defined as the percentage of participants who were alive and progression free per RECIST v1.1 at 12 months after randomization per Kaplan-Meier estimate of PFS at 12 months. PD was defined as at least a 20% increase in the sum of diameters of target lesions and an absolute increase of at least 5 millimeter (mm) or progression of non-target lesions or the appearance of a new lesion
Time From Randomisation to Second Progression (PFS2) of Sub-study BTumour scans performed at baseline then every ~8 weeks up to 48 weeks, then every ~12 weeks thereafter until first progression. Disease then assessed per local practice until 2nd progression. Assessed up to a maximum of approximately 3 years.The PFS2 was defined as the time from the date of randomization to the earliest of the progression event subsequent to that used for the PFS endpoint or death and determined by local standard clinical practice and have included any of the following: objective radiological, symptomatic progression, or death. PFS2 was reported for sub-study B only.
Percentage of Participants Alive and Progression Free at 6 Months (APF6)Tumour scans performed at baseline then every ~8 weeks up to 6 monthsThe APF6 was defined as the percentage of participants who were alive and progression free per RECIST v1.1 at 6 months after randomization per Kaplan-Meier estimate of PFS at 6 months. PD was defined as at least a 20% increase in the sum of diameters of target lesions and an absolute increase of at least 5 millimeter (mm) or progression of non-target lesions or the appearance of a new lesion
Percentage of Participants Alive at 12 Months (OS12)From randomization (Day 1) up to 12 monthsThe OS12 was defined as the percentage of participants who were alive at 12 months after randomisation per Kaplan-Meier estimate of OS at 12 months.

Countries

Australia, Belgium, Bulgaria, Canada, Chile, Czechia, France, Germany, Greece, Hong Kong, Hungary, Israel, Italy, Japan, Netherlands, Poland, Romania, Russia, Serbia, Singapore, South Korea, Spain, Taiwan, Thailand, United Kingdom, United States

Participant flow

Recruitment details

This study was divided into 2 parts, sub-study A (82 centers across Europe, Asia, and North America) and sub-study B (149 centers across Europe, Asia, North America, and South America) conducted between 13 January 2015 and 09 February 2018 (data cut-off date).

Pre-assignment details

The study had a pre-screening period to determine the programmed cell death ligand 1 (PD-L1) status, followed by a screening period and 12 month treatment period. A total of 595 participants were randomized to either sub-study A \[PD-L1 high (\>=25% of tumor cell (TC) expressing PD-L1)\] or sub-study B \[PD-L1 low/neg (\<25% of TC expressing PD-L1)\].

Participants by arm

ArmCount
Sub-study A: Durvalumab
Participants received durvalumab 10 mg/kg IV infusion Q2W for 12 months (up to 26 doses).
62
Sub-study A: SoC
Participants received either erlotinib 150 mg tablet orally once daily; gemcitabine 1000 mg/m\^2 IV infusion on Days 1, 8, and 15 of a 28-day cycle; or vinorelbine 30 mg/m\^2 IV infusion on Days 1, 8, 15, and 22 of a 28-day cycle until PD, initiation of alternative anti-cancer therapy, unacceptable toxicity, withdrawal of consent, or other reasons to discontinue treatment criterion occurred.
64
Sub-study B: Durvalumab+Tremelimumab
Participants received durvalumab 20 mg/kg plus tremelimumab 1 mg/kg IV infusion Q4W for 12 weeks (4 doses) followed by durvalumab alone 10 mg/kg IV infusion Q2W for 34 weeks starting at Week 16 (up to 18 additional doses).
174
Sub-study B: SoC
Participants received either erlotinib 150 mg tablet orally once daily; gemcitabine 1000 mg/m\^2 IV infusion on Days 1, 8, and 15 of a 28-day cycle; or vinorelbine 30 mg/m\^2 IV infusion on Days 1, 8, 15, and 22 of a 28-day cycle until PD, initiation of alternative anti-cancer therapy, unacceptable toxicity, withdrawal of consent, or other reasons to discontinue treatment criterion occurred.
118
Sub-study B: Durvalumab
Participants received durvalumab 10 mg/kg IV infusion Q2W for 12 months (up to 26 doses).
117
Sub-study B: Tremelimumab
Participants received tremelimumab 10 mg/kg IV infusion Q4W for 24 weeks followed by Q12W for 24 weeks (up to 9 doses).
60
Total595

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005
Overall StudyDeath4748114747744
Overall StudyEligibility criteria not fulfilled010100
Overall StudyLost to Follow-up102121
Overall StudyOther002000
Overall StudyWithdrawal by Subject110112394

Baseline characteristics

CharacteristicSub-study A: DurvalumabSub-study A: SoCSub-study B: Durvalumab+TremelimumabSub-study B: SoCSub-study B: DurvalumabSub-study B: TremelimumabTotal
Age, Customized
>=50 to <65 years
31 Participants25 Participants79 Participants49 Participants52 Participants27 Participants263 Participants
Age, Customized
<50 years
3 Participants11 Participants16 Participants8 Participants13 Participants4 Participants55 Participants
Age, Customized
>=65 to <75 years
24 Participants21 Participants64 Participants50 Participants39 Participants24 Participants222 Participants
Age, Customized
>=75 years
4 Participants7 Participants15 Participants11 Participants13 Participants5 Participants55 Participants
Race/Ethnicity, Customized
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Asian
22 Participants23 Participants41 Participants41 Participants34 Participants16 Participants177 Participants
Race/Ethnicity, Customized
Black or African American
0 Participants1 Participants3 Participants2 Participants2 Participants1 Participants9 Participants
Race/Ethnicity, Customized
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Other
0 Participants0 Participants1 Participants1 Participants1 Participants0 Participants3 Participants
Race/Ethnicity, Customized
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants1 Participants0 Participants1 Participants
Race/Ethnicity, Customized
White
40 Participants40 Participants129 Participants74 Participants79 Participants43 Participants405 Participants
Sex: Female, Male
Female
20 Participants16 Participants59 Participants37 Participants44 Participants21 Participants197 Participants
Sex: Female, Male
Male
42 Participants48 Participants115 Participants81 Participants73 Participants39 Participants398 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
deaths
Total, all-cause mortality
48 / 6255 / 64118 / 17490 / 11883 / 11746 / 60
other
Total, other adverse events
52 / 6259 / 63139 / 173100 / 11099 / 11748 / 60
serious
Total, serious adverse events
23 / 6216 / 6365 / 17328 / 11036 / 11723 / 60

Outcome results

Primary

Overall Survival (OS)

The OS was defined as the time from the date of randomization until death due to any cause.

Time frame: From randomization (Day 1) until death due to any cause, approximately 36 months

Population: Sub-study A and B: FAS included all randomized participants analyzed on an ITT basis.

ArmMeasureValue (MEDIAN)
Sub-study A: DurvalumabOverall Survival (OS)11.7 months
Sub-study A: SoCOverall Survival (OS)6.8 months
Sub-study B: Durvalumab+TremelimumabOverall Survival (OS)11.5 months
Sub-study B: SoCOverall Survival (OS)8.7 months
Comparison: For sub-study A: durvalumab monotherapy treatment arm was compared with SoC.95% CI: [0.42, 0.93]
Comparison: For sub-study B: durvalumab plus tremelimumab treatment arm was compared with SoC.p-value: 0.10995% CI: [0.61, 1.05]Log Rank
Primary

Progression-Free Survival (PFS)

The PFS was defined as the time from the date of randomization until the date of objective disease progression or death (by any cause in the absence of progression) regardless of whether the participant withdrew from randomized therapy or received another anti-cancer therapy prior to progression. The PFS was determined by Investigator assessments according to response evaluation criteria in solid tumours (RECIST) version 1.1. PD was defined as at least a 20% increase in the sum of diameters of target lesions and an absolute increase of at least 5 millimeter (mm) or progression of non-target lesions or the appearance of a new lesion

Time frame: Tumour scans performed at baseline then every ~8 weeks up to 48 weeks, then every ~12 weeks thereafter until confirmed disease progression. Assessed up to a maximum of approximately 3 years.

Population: Sub-study A and B: FAS included all randomized participants analyzed on an ITT basis.

ArmMeasureValue (MEDIAN)
Sub-study A: DurvalumabProgression-Free Survival (PFS)3.8 months
Sub-study A: SoCProgression-Free Survival (PFS)2.2 months
Sub-study B: Durvalumab+TremelimumabProgression-Free Survival (PFS)3.5 months
Sub-study B: SoCProgression-Free Survival (PFS)3.5 months
Comparison: For sub-study A: durvalumab monotherapy treatment arm was compared with SoC.95% CI: [0.49, 1.04]
Comparison: For sub-study B: durvalumab plus tremelimumab treatment arm was compared with SoC.p-value: 0.05695% CI: [0.59, 1.01]Log Rank
Secondary

Duration of Response (DoR)

The DoR was defined as the time from the date of first documented response until the first date of documented progression or death in the absence of disease progression. The DoR was determined by Investigator assessments according to RECIST v1.1. PD was defined as at least a 20% increase in the sum of diameters of target lesions and an absolute increase of at least 5 millimeter (mm) or progression of non-target lesions or the appearance of a new lesion

Time frame: Tumour scans performed at baseline then every ~8 weeks up to 48 weeks, then every ~12 weeks thereafter until confirmed disease progression. Assessed up to a maximum of approximately 3 years.

Population: Sub-study A and B: FAS included all randomized participants with measureable disease at baseline analyzed on an ITT basis. Only participants with objective response were analyzed.

ArmMeasureValue (MEDIAN)
Sub-study A: DurvalumabDuration of Response (DoR)9.5 months
Sub-study A: SoCDuration of Response (DoR)4.8 months
Sub-study B: Durvalumab+TremelimumabDuration of Response (DoR)12.2 months
Sub-study B: SoCDuration of Response (DoR)10.8 months
Sub-study B: DurvalumabDuration of Response (DoR)10.0 months
Sub-study B: TremelimumabDuration of Response (DoR)4.7 months
Secondary

Objective Response Rate (ORR)

The ORR was defined as the percentage of participants with at least 1 visit response of complete response (CR) or partial response (PR) among ITT participants who had measurable disease at baseline. CR was defined as disappearance of all target lesions (any pathological lymph nodes selected as target lesions must have a reduction in short axis to \<10 mm) and PR was defined as at least a 30% decrease in the sum of diameters of target lesions (taking as reference the baseline sum of diameters as long as criteria for PD are not met). The ORR was measured using Investigator assessments according to RECIST v1.1.

Time frame: Tumour scans performed at baseline then every ~8 weeks up to 48 weeks, then every ~12 weeks thereafter until confirmed disease progression. Assessed up to a maximum of approximately 3 years.

Population: Sub-study A and B: FAS included all randomized participants with measureable disease at baseline analyzed on an ITT basis.

ArmMeasureValue (NUMBER)
Sub-study A: DurvalumabObjective Response Rate (ORR)35.5 percentage of participants
Sub-study A: SoCObjective Response Rate (ORR)12.5 percentage of participants
Sub-study B: Durvalumab+TremelimumabObjective Response Rate (ORR)14.9 percentage of participants
Sub-study B: SoCObjective Response Rate (ORR)6.8 percentage of participants
Sub-study B: DurvalumabObjective Response Rate (ORR)15.4 percentage of participants
Sub-study B: TremelimumabObjective Response Rate (ORR)6.7 percentage of participants
Comparison: For sub-study A: durvalumab monotherapy treatment arm was compared with SoC.95% CI: [1.61, 10.1]
Comparison: For sub-study B: durvalumab plus tremelimumab treatment arm was compared with SoC.p-value: 0.03795% CI: [1.1, 5.94]Regression, Logistic
Comparison: For sub-study B: durvalumab plus tremelimumab treatment arm was compared with durvalumab monotherapy.p-value: 0.92395% CI: [0.51, 1.89]Regression, Logistic
Comparison: For sub-study B: durvalumab plus tremelimumab treatment arm was compared with tremelimumab monotherapy.p-value: 0.10995% CI: [0.91, 8.61]Regression, Logistic
Secondary

OS, Contribution of the Components Analysis of Sub-study B

The OS was defined as the time from the date of randomization until death due to any cause.

Time frame: From randomization (Day 1) until death due to any cause, approximately 36 months

Population: FAS included all randomized participants analyzed on an ITT basis.

ArmMeasureValue (MEDIAN)
Sub-study A: DurvalumabOS, Contribution of the Components Analysis of Sub-study B11.5 months
Sub-study A: SoCOS, Contribution of the Components Analysis of Sub-study B10.0 months
Sub-study B: Durvalumab+TremelimumabOS, Contribution of the Components Analysis of Sub-study B6.9 months
Comparison: As part of the contribution of components analysis for sub-study B, durvalumab plus tremelimumab treatment arm was compared with durvalumab monotherapy.p-value: 0.88595% CI: [0.74, 1.3]Log Rank
Comparison: As part of the contribution of components analysis for sub-study B, durvalumab plus tremelimumab treatment arm was compared with tremelimumab monotherapy.p-value: 0.15395% CI: [0.56, 1.11]Log Rank
Secondary

Percentage of Participants Alive and Progression Free at 12 Months (APF12)

The APF12 was defined as the percentage of participants who were alive and progression free per RECIST v1.1 at 12 months after randomization per Kaplan-Meier estimate of PFS at 12 months. PD was defined as at least a 20% increase in the sum of diameters of target lesions and an absolute increase of at least 5 millimeter (mm) or progression of non-target lesions or the appearance of a new lesion

Time frame: Tumour scans performed at baseline then every ~8 weeks up to 12 months.

Population: Sub-study A and B: FAS included all randomized participants analyzed on an ITT basis.

ArmMeasureValue (NUMBER)
Sub-study A: DurvalumabPercentage of Participants Alive and Progression Free at 12 Months (APF12)19.4 percentage of participants
Sub-study A: SoCPercentage of Participants Alive and Progression Free at 12 Months (APF12)9.9 percentage of participants
Sub-study B: Durvalumab+TremelimumabPercentage of Participants Alive and Progression Free at 12 Months (APF12)20.6 percentage of participants
Sub-study B: SoCPercentage of Participants Alive and Progression Free at 12 Months (APF12)8.0 percentage of participants
Sub-study B: DurvalumabPercentage of Participants Alive and Progression Free at 12 Months (APF12)15.0 percentage of participants
Sub-study B: TremelimumabPercentage of Participants Alive and Progression Free at 12 Months (APF12)7.3 percentage of participants
Secondary

Percentage of Participants Alive and Progression Free at 6 Months (APF6)

The APF6 was defined as the percentage of participants who were alive and progression free per RECIST v1.1 at 6 months after randomization per Kaplan-Meier estimate of PFS at 6 months. PD was defined as at least a 20% increase in the sum of diameters of target lesions and an absolute increase of at least 5 millimeter (mm) or progression of non-target lesions or the appearance of a new lesion

Time frame: Tumour scans performed at baseline then every ~8 weeks up to 6 months

Population: Sub-study A and B: FAS included all randomized participants analyzed on an ITT basis.

ArmMeasureValue (NUMBER)
Sub-study A: DurvalumabPercentage of Participants Alive and Progression Free at 6 Months (APF6)35.5 percentage of participants
Sub-study A: SoCPercentage of Participants Alive and Progression Free at 6 Months (APF6)24.1 percentage of participants
Sub-study B: Durvalumab+TremelimumabPercentage of Participants Alive and Progression Free at 6 Months (APF6)31.5 percentage of participants
Sub-study B: SoCPercentage of Participants Alive and Progression Free at 6 Months (APF6)27.6 percentage of participants
Sub-study B: DurvalumabPercentage of Participants Alive and Progression Free at 6 Months (APF6)27.2 percentage of participants
Sub-study B: TremelimumabPercentage of Participants Alive and Progression Free at 6 Months (APF6)14.5 percentage of participants
Secondary

Percentage of Participants Alive at 12 Months (OS12)

The OS12 was defined as the percentage of participants who were alive at 12 months after randomisation per Kaplan-Meier estimate of OS at 12 months.

Time frame: From randomization (Day 1) up to 12 months

Population: Sub-study A and B: FAS included all randomized participants analyzed on an ITT basis.

ArmMeasureValue (NUMBER)
Sub-study A: DurvalumabPercentage of Participants Alive at 12 Months (OS12)49.3 percentage of participants
Sub-study A: SoCPercentage of Participants Alive at 12 Months (OS12)31.3 percentage of participants
Sub-study B: Durvalumab+TremelimumabPercentage of Participants Alive at 12 Months (OS12)49.5 percentage of participants
Sub-study B: SoCPercentage of Participants Alive at 12 Months (OS12)38.8 percentage of participants
Sub-study B: DurvalumabPercentage of Participants Alive at 12 Months (OS12)43.6 percentage of participants
Sub-study B: TremelimumabPercentage of Participants Alive at 12 Months (OS12)41.2 percentage of participants
Comparison: For sub-study B: durvalumab plus tremelimumab treatment arm was compared with SoC.p-value: 0.063z-test
Secondary

PFS, Contribution of the Components Analysis of Sub-study B

The PFS was defined as the time from the date of randomization until the date of objective disease progression or death (by any cause in the absence of progression) regardless of whether the participant withdrew from randomized therapy or received another anti-cancer therapy prior to progression. The PFS was determined by Investigator assessments according to RECIST v1.1. PD was defined as at least a 20% increase in the sum of diameters of target lesions and an absolute increase of at least 5 millimeter (mm) or progression of non-target lesions or the appearance of a new lesion

Time frame: Tumour scans performed at baseline then every ~8 weeks up to 48 weeks, then every ~12 weeks thereafter until confirmed disease progression. Assessed up to a maximum of approximately 3 years.

Population: FAS included all randomized participants analyzed on an ITT basis.

ArmMeasureValue (MEDIAN)
Sub-study A: DurvalumabPFS, Contribution of the Components Analysis of Sub-study B3.5 months
Sub-study A: SoCPFS, Contribution of the Components Analysis of Sub-study B3.1 months
Sub-study B: Durvalumab+TremelimumabPFS, Contribution of the Components Analysis of Sub-study B2.1 months
Comparison: As part of the contribution of components analysis for sub-study B, durvalumab plus tremelimumab treatment arm was compared with durvalumab monotherapy.p-value: 0.28295% CI: [0.68, 1.12]Log Rank
Comparison: As part of the contribution of components analysis for sub-study B, durvalumab plus tremelimumab treatment arm was compared with tremelimumab monotherapy.p-value: 0.01195% CI: [0.49, 0.92]Log Rank
Secondary

Time From Randomisation to Second Progression (PFS2) of Sub-study B

The PFS2 was defined as the time from the date of randomization to the earliest of the progression event subsequent to that used for the PFS endpoint or death and determined by local standard clinical practice and have included any of the following: objective radiological, symptomatic progression, or death. PFS2 was reported for sub-study B only.

Time frame: Tumour scans performed at baseline then every ~8 weeks up to 48 weeks, then every ~12 weeks thereafter until first progression. Disease then assessed per local practice until 2nd progression. Assessed up to a maximum of approximately 3 years.

Population: FAS included all randomized participants analyzed on an ITT basis.

ArmMeasureValue (MEDIAN)
Sub-study A: DurvalumabTime From Randomisation to Second Progression (PFS2) of Sub-study B9.1 months
Sub-study A: SoCTime From Randomisation to Second Progression (PFS2) of Sub-study B6.7 months
Sub-study B: Durvalumab+TremelimumabTime From Randomisation to Second Progression (PFS2) of Sub-study B8.0 months
Sub-study B: SoCTime From Randomisation to Second Progression (PFS2) of Sub-study B5.7 months
Comparison: For sub-study B: durvalumab plus tremelimumab treatment arm was compared with SoC.p-value: 0.00295% CI: [0.49, 0.85]Log Rank

Source: ClinicalTrials.gov · Data processed: Mar 4, 2026