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Study of Durvalumab With Tremelimumab Versus SoC as 1st Line Therapy in Metastatic Non Small-Cell Lung Cancer (NSCLC) (NEPTUNE)

A Phase III Randomized, Open-Label, Multi-Center, Global Study of MEDI4736 in Combination With Tremelimumab Therapy Versus Standard of Care Platinum-Based Chemotherapy in First-Line Treatment of Patients With Advanced or Metastatic Non Small-Cell Lung Cancer (NSCLC).

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02542293
Acronym
NEPTUNE
Enrollment
953
Registered
2015-09-07
Start date
2015-11-03
Completion date
2026-12-31
Last updated
2026-02-12

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

Conditions

Non Small Cell Lung Carcinoma NSCLC

Keywords

NSCLC, PDL1, TMB, MEDI4736, Durvalumab, Tremelimumab, OS

Brief summary

This is a randomized, open-label, multi-center, global, Phase III study to determine the efficacy and safety of durvalumab + tremelimumab combination therapy versus platinum-based SoC chemotherapy in the first-line treatment of patients with epidermal growth factor receptor (EGFR) and anaplastic lymphoma kinase (ALK) wild-type advanced or metastatic NSCLC.

Detailed description

Patients will be randomized in a 1:1 to receive treatment with durvalumab + tremelimumab combination therapy or SoC therapy. The primary objective of this study is to assess the efficacy of combination treatment compared with SoC in terms of Overall Survival (OS) in patients.

Interventions

BIOLOGICALDurvalumab +Tremelimumab

Chemotherapy Agents

Chemotherapy Agents

Chemotherapy Agents

Chemotherapy Agent

Chemotherapy Agent

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

For inclusion in the study, patients should fulfill the following criteria: * Aged at least 18 years * Documented evidence of Stage IV NSCLC * No activating EGFR mutation or ALK rearrangement * No prior chemotherapy or any other systemic therapy for recurrent/metastatic NSCLC * World Health Organization (WHO) Performance Status of 0 or 1 * No Prior exposure to Immune Mediated Therapy (IMT), including, but not limited to, other antiCTLA4, antiPD1, anti PDL1,or antiPDL2 antibodies, excluding therapeutic anticancer vaccines

Exclusion criteria

Patients should not enter the study if any of the following

Design outcomes

Primary

MeasureTime frameDescription
Overall Survival (OS); Global Cohort: Blood Tumor Mutational Burden (bTMB) ≥20 Mutations Per Megabase (Mut/Mb) Analysis SetFrom baseline (Day 1, Week 0) until death due to any cause, assessed up to the Global cohort DCO date (a maximum of approximately 44 months).The OS was defined as the time from the date of randomization until death due to any cause (ie, date of death or censoring - date of randomization + 1). Any participant not known to have died at the time of analysis was censored based on the last recorded date on which the participant was known to be alive. Median OS was calculated using the Kaplan-Meier technique.
OS; China Cohort: China Programmed Cell Death Ligand 1 (PD-L1) Negative NSCLC Analysis SetFrom baseline (Day 1, Week 0) until death due to any cause, assessed up to the China cohort DCO date (a maximum of approximately 44 months).The OS was defined as the time from the date of randomization until death due to any cause (ie, date of death or censoring - date of randomization + 1). Any participant not known to have died at the time of analysis was censored based on the last recorded date on which the participant was known to be alive. Median OS was calculated using the Kaplan-Meier technique.

Secondary

MeasureTime frameDescription
OS; Global Cohort: bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, PD-L1-Negative NSCLC, bTMB <20 Mut/Mb, bTMB Non-Evaluable Population, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetsFrom baseline (Day 1, Week 0) until death due to any cause, assessed up to the Global cohort DCO date (a maximum of approximately 44 months).OS was defined as time from date of randomization until death due to any cause (ie, date of death or censoring - date of randomization + 1). Any participant not known to have died at time of analysis was censored based on last recorded date on which participant was known to be alive. bTMB ≥16 mut/Mb, bTMB ≥12 mut/Mb and bTMB \<20 mut/Mb analysis sets included the subset of participants in FAS whose bTMB status was ≥16 mut/Mb, ≥12 mut/Mb and \<20 mut/Mb, respectively at baseline as defined by the GuardantOMNI CDx assay. PD-L1-negative analysis set included the subset of participants in FAS whose PD-L1 status was PD-L1-negative at baseline as defined by the Ventana SP263 PD-L1 Assay (ie, \<1% PD-L1-membrane expression in tumoral tissue). bTMB non-evaluable analysis set included the subset of participants in FAS whose bTMB status at baseline could not be determined by the GuardantOMNI CDx assay or whose sample was not available. tTMB analysis sets are defined same as the bTMB analysis sets.
OS; Global and China Cohorts: FAS, PD-L1 Tumor Cell (TC) ≥25%, and PD-L1 TC ≥50% Analysis SetsFrom baseline (Day 1, Week 0) until death due to any cause, assessed up to the Global or China cohort DCO dates, as applicable (a maximum of approximately 44 months) for each cohort.The OS was defined as time from date of randomization until death due to any cause (ie, date of death or censoring - date of randomization + 1). Any participant not known to have died at the time of analysis was censored based on last recorded date on which participant was known to be alive. Global Cohort: The FAS included all randomized participants prior to the end of global recruitment. Any participants recruited in China, after global recruitment had ended, were not included in the FAS. China Cohort: The China FAS included all randomized participants in the China cohort and were used for all China only efficacy analyses. PD-L1 TC ≥25% and PD-L1 TC ≥50% analysis sets included the subset of participants in the FAS whose PD-L1 status was TC ≥25% and TC ≥50% membrane expression in tumoral tissue, respectively at baseline as defined by the Ventana SP263 PD-L1 Assay.
Progression-Free Survival (PFS); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetsTumour scans performed at baseline and every 6 weeks up to 48 weeks relative to date of randomization, then every 8 weeks thereafter until confirmed PD/death. Up to Global cohort DCO date (approximately 44 months).The PFS (per Response Evaluation Criteria in Solid Tumors, version 1.1 \[RECIST 1.1\] using Investigator assessments) was defined as the time from the date of randomization until the date of objective PD or death (by any cause in the absence of progression) regardless of whether the participant withdrew from randomized therapy or received another anticancer therapy prior to progression (ie, date of PFS event or censoring - date of randomization + 1). bTMB ≥20 mut/Mb, bTMB ≥16 mut/Mb and bTMB ≥12 mut/Mb analysis sets included the subset of participants in FAS whose bTMB status was ≥20 mut/Mb, ≥16 mut/Mb and ≥12 mut/Mb, respectively at baseline as defined by the GuardantOMNI CDx assay. tTMB ≥14 mut/Mb, tTMB ≥12 mut/Mb, tTMB ≥10 mut/Mb and tTMB ≥8 mut/Mb analysis sets included the subset of participants in FAS whose tTMB status was ≥14 mut/Mb, ≥12 mut/Mb, ≥10 mut/Mb and ≥8 mut/Mb, respectively at baseline as defined by the GuardantOMNI CDx assay.
PFS; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsTumour scans performed at baseline and every 6 weeks up to 48 weeks relative to date of randomization, then every 8 weeks thereafter until confirmed PD/death. Up to Global or China cohort DCO dates, as applicable (approximately 44 months) for each cohort.PFS (per RECIST 1.1 using Investigator assessments) was defined as time from date of randomization until date of objective PD or death regardless of whether participant withdrew from randomized therapy or received another anticancer therapy prior to progression (ie, date of PFS event or censoring - date of randomization + 1). PD-L1-negative analysis set included subset of participants in FAS whose PD-L1 status was PD-L1-negative at baseline as defined by Ventana SP263 PD-L1 Assay (ie, \<1% PD-L1-membrane expression in tumoral tissue). Global Cohort: FAS included all randomized participants prior to end of global recruitment. China Cohort: China FAS included all randomized participants in China cohort and were used for all China only efficacy analyses. PD-L1 TC ≥25% and PD-L1 TC ≥50% analysis sets included subset of participants in FAS whose PD-L1 status was TC ≥25% and TC ≥50% membrane expression in tumoral tissue, respectively at baseline as defined by the Ventana SP263 PD-L1 Assay.
OS at Months 12, 18 and 24; Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsMonths 12, 18 and 24The OS was defined as the time from the date of randomization until death due to any cause (ie, date of death or censoring - date of randomization + 1). bTMB ≥20 mut/Mb, bTMB ≥16 mut/Mb and bTMB ≥12 mut/Mb analysis sets included the subset of participants in FAS whose bTMB status was ≥20 mut/Mb, ≥16 mut/Mb and ≥12 mut/Mb, respectively at baseline as defined by the GuardantOMNI CDx assay.
Objective Response Rate (ORR); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetsTumour scans performed at baseline and every 6 weeks up to 48 weeks relative to date of randomization, then every 8 weeks thereafter until confirmed PD/death. Up to Global cohort DCO date (approximately 44 months).The ORR (per RECIST 1.1 using Investigator assessments) was defined as the percentage of participants with at least 1 visit response of complete response (CR) or partial response (PR) prior to PD. bTMB ≥20 mut/Mb, bTMB ≥16 mut/Mb and bTMB ≥12 mut/Mb analysis sets included the subset of participants in FAS whose bTMB status was ≥20 mut/Mb, ≥16 mut/Mb and ≥12 mut/Mb, respectively at baseline as defined by the GuardantOMNI CDx assay. tTMB ≥14 mut/Mb, tTMB ≥12 mut/Mb, tTMB ≥10 mut/Mb and tTMB ≥8 mut/Mb analysis sets included the subset of participants in FAS whose tTMB status was ≥14 mut/Mb, ≥12 mut/Mb, ≥10 mut/Mb and ≥8 mut/Mb, respectively at baseline as defined by the GuardantOMNI CDx assay.
ORR; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsTumour scans performed at baseline and every 6 weeks up to 48 weeks relative to date of randomization, then every 8 weeks thereafter until confirmed PD/death. Up to Global or China cohort DCO dates, as applicable (approximately 44 months) for each cohort.The ORR (per RECIST 1.1 using Investigator assessments) was defined as the percentage of participants with at least 1 visit response of CR or PR prior to PD. PD-L1-negative analysis set included the subset of participants in FAS whose PD-L1 status was PD-L1-negative at baseline as defined by the Ventana SP263 PD-L1 Assay (ie, \<1% PD-L1-membrane expression in tumoral tissue). Global Cohort: The FAS included all randomized participants prior to the end of global recruitment. China Cohort: The China FAS included all randomized participants in the China cohort and were used for all China only efficacy analyses. PD-L1 TC ≥25% and PD-L1 TC ≥50% analysis sets included the subset of participants in the FAS whose PD-L1 status was TC ≥25% and TC ≥50% membrane expression in tumoral tissue, respectively at baseline as defined by the Ventana SP263 PD-L1 Assay.
Duration of Response (DoR); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsTumour scans performed at baseline and every 6 weeks up to 48 weeks relative to date of randomization, then every 8 weeks thereafter until confirmed PD/death. Up to Global cohort DCO date (approximately 44 months).DoR (per RECIST 1.1 using Investigator assessments) was defined as the time from the date of first documented response (CR or PR) until the first date of documented progression or death in the absence of PD (ie, date of PFS event or censoring - date of first response + 1). bTMB ≥20 mut/Mb, bTMB ≥16 mut/Mb and bTMB ≥12 mut/Mb analysis sets included the subset of participants in FAS whose bTMB status was ≥20 mut/Mb, ≥16 mut/Mb and ≥12 mut/Mb, respectively at baseline as defined by the GuardantOMNI CDx assay.
DoR; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsTumour scans performed at baseline and every 6 weeks up to 48 weeks relative to date of randomization, then every 8 weeks thereafter until confirmed PD/death. Up to Global or China cohort DCO dates, as applicable (approximately 44 months) for each cohort.DoR (per RECIST 1.1 using Investigator assessments) was defined as the time from the date of first documented response (CR or PR) until the first date of documented progression or death in the absence of PD (ie, date of PFS event or censoring - date of first response + 1). PD-L1-negative analysis set included the subset of participants in FAS whose PD-L1 status was PD-L1-negative at baseline as defined by the Ventana SP263 PD-L1 Assay (ie, \<1% PD-L1-membrane expression in tumoral tissue). Global Cohort: The FAS included all randomized participants prior to the end of global recruitment. China Cohort: The China FAS included all randomized participants in the China cohort and were used for all China only efficacy analyses.
Alive and Progression-Free at 12 Months (APF12); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsTumour scans performed at baseline then every 6 weeks up to 12 months.The APF12 was defined as the percentage of participants who were alive and progression free at 12 months from randomization (ie, PFS rate at 12 months). bTMB ≥20 mut/Mb, bTMB ≥16 mut/Mb and bTMB ≥12 mut/Mb analysis sets included the subset of participants in FAS whose bTMB status was ≥20 mut/Mb, ≥16 mut/Mb and ≥12 mut/Mb, respectively at baseline as defined by the GuardantOMNI CDx assay.
APF12; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsTumour scans performed at baseline then every 6 weeks up to 12 months.The APF12 was defined as the percentage of patients who were alive and progression free at 12 months from randomization (ie, PFS rate at 12 months). PD-L1-negative analysis set included the subset of participants in FAS whose PD-L1 status was PD-L1-negative at baseline as defined by the Ventana SP263 PD-L1 Assay (ie, \<1% PD-L1-membrane expression in tumoral tissue). Global Cohort: The FAS included all randomized participants prior to the end of global recruitment. China Cohort: The China FAS included all randomized participants in the China cohort and were used for all China only efficacy analyses.
Time From Randomization to Second Progression or Death (PFS2); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsTumour scans performed at baseline and every 6 weeks up to 48 weeks relative to date of randomization, then every 8 weeks thereafter until confirmed PD/death. Up to Global cohort DCO date (approximately 44 months).The PFS2 was defined as the time from the date of randomization to the earliest of the progression events subsequent to that used for the primary variable PFS, or death (ie, date of PFS2 event or censoring - date of randomization + 1). bTMB ≥20 mut/Mb, bTMB ≥16 mut/Mb and bTMB ≥12 mut/Mb analysis sets included the subset of participants in FAS whose bTMB status was ≥20 mut/Mb, ≥16 mut/Mb and ≥12 mut/Mb, respectively at baseline as defined by the GuardantOMNI CDx assay.
PFS2; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsTumour scans performed at baseline and every 6 weeks up to 48 weeks relative to date of randomization, then every 8 weeks thereafter until confirmed PD/death. Up to Global or China cohort DCO dates, as applicable (approximately 44 months) for each cohort.The PFS2 was defined as the time from the date of randomization to the earliest of the progression events subsequent to that used for the primary variable PFS, or death (ie, date of PFS2 event or censoring - date of randomization + 1). PD-L1-negative analysis set included the subset of participants in FAS whose PD-L1 status was PD-L1-negative at baseline as defined by the Ventana SP263 PD-L1 Assay (ie, \<1% PD-L1-membrane expression in tumoral tissue). Global Cohort: The FAS included all randomized participants prior to the end of global recruitment. China Cohort: The China FAS included all randomized participants in the China cohort and were used for all China only efficacy analyses.
OS at Months 12, 18 and 24; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsMonths 12, 18 and 24The OS was defined as the time from the date of randomization until death due to any cause (ie, date of death or censoring - date of randomization + 1). PD-L1-negative analysis set included the subset of participants in FAS whose PD-L1 status was PD-L1-negative at baseline as defined by the Ventana SP263 PD-L1 Assay (ie, \<1% PD-L1-membrane expression in tumoral tissue). Global Cohort: The FAS included all randomized participants prior to the end of global recruitment. China Cohort: The China FAS included all randomized participants in the China cohort and were used for all China only efficacy analyses.
Serum Concentrations of DurvalumabPre-dose and within 1 hour after end of infusion at Week 0 and 12; pre-dose on Week 24 and at follow-up Month 3Blood samples were collected to determine the serum concentration of durvalumab.
Serum Concentrations of TremelimumabPre-dose and within 1 hour after end of infusion at Week 0 and 12, and at follow-up Month 3Blood samples were collected to determine the serum concentration of tremelimumab.
Number of Participants With Anti-Drug Antibody (ADA) Response to DurvalumabAt Weeks 0, 12, and 24; 3 and 6 months after last dose of study treatment.Blood samples were measured for the presence of ADAs and ADA-neutralizing antibodies (nAb) for durvalumab using validated assays. ADA prevalence is defined as the percentage of participants with positive ADA result at any time, baseline or post-baseline. Treatment-emergent ADA is defined as the sum of treatment-induced ADA and treatment-boosted ADA. ADA incidence is the percentage of participants who were treatment-emergent ADA-positive. Treatment-boosted ADA is defined as baseline positive ADA titer that was boosted to \>=4 fold during the study period. Persistently positive is defined as having at least 2 post baseline ADA positive measurements with at least 16 weeks (112 days) between the first and last positive measurements, or an ADA positive result at the last available assessment. Transiently positive is defined as having at least 1 post baseline ADA positive measurement and not fulfilling the conditions for persistently positive.
Number of Participants With ADA Response to TremelimumabAt Weeks 0 and 12; 3 and 6 months after last dose of study treatment.Blood samples were measured for the presence of ADAs and ADA-nAb for tremelimumab using validated assays. ADA prevalence is defined as the percentage of participants with positive ADA result at any time, baseline or post-baseline. Treatment-emergent ADA is defined as the sum of treatment-induced ADA and treatment-boosted ADA. ADA incidence is the percentage of participants who were treatment-emergent ADA-positive. Treatment-boosted ADA is defined as baseline positive ADA titer that was boosted to \>=4 fold during the study period. Persistently positive is defined as having at least 2 post baseline ADA positive measurements with at least 16 weeks (112 days) between the first and last positive measurements, or an ADA positive result at the last available assessment. Transiently positive is defined as having at least 1 post baseline ADA positive measurement and not fulfilling the conditions for persistently positive.

Countries

Argentina, Brazil, Bulgaria, Chile, China, Denmark, Finland, Greece, Hong Kong, India, Israel, Japan, Malaysia, Mexico, Peru, Philippines, Poland, Portugal, Qatar, Romania, Russia, Saudi Arabia, Singapore, South Korea, Sweden, Turkey (Türkiye), Ukraine, United Kingdom, United States

Contacts

PRINCIPAL_INVESTIGATORGilberto de Castro

Faculdade de Medicina da Universidade de São Paulo

Participant flow

Recruitment details

A total of 192 centers across 29 countries in North America, Latin America, Asia, Europe and Gulf countries randomized adults with epidermal growth factor receptor and anaplastic lymphoma kinase wild-type advanced or metastatic non-small-cell lung cancer (NSCLC) in this study. First participant was enrolled on 03 November 2015 and final data cut-off (DCO) date was 24 June 2019 for Global cohort and 21 September 2020 for China cohort. SoC = standard of care

Pre-assignment details

823 participants in Global cohort and 160 participants in China cohort were randomized in 1:1 ratio to receive durvalumab + tremelimumab or SoC chemotherapy. China cohort comprised participants from mainland China (30 from Global cohort and 130 randomized after end of Global cohort recruitment). Thus, 953 unique participants were randomized in the study overall. Participants included in both cohorts for Started, Completed and Reasons for Not Completed are not double-counted for participant flow.

Participants by arm

ArmCount
All Participants: Durvalumab + Tremelimumab
Participants received durvalumab 20 mg/kg and tremelimumab 1 mg/kg IV infusion Q4W in combination for up to 4 doses/cycles. Participants then continued to receive durvalumab 20 mg/kg Q4W, starting on Week 16 until objective PD, initiation of alternative anticancer therapy, unacceptable toxicity, withdrawal of consent, or specific treatment discontinuation criteria were met.
474
All Participants: SoC Chemotherapy
Participants received 1 of the following IV infusion treatment combinations on Day 1 of each 21-day cycle for 4 to 6 cycles or until objective PD, initiation of alternative anticancer therapy, unacceptable toxicity, withdrawal of consent, or specific treatment discontinuation criteria were met. 1. Paclitaxel 200 mg/m\^2 and carboplatin AUC 5 or 6 mg\*min/mL. 2. Gemcitabine 1000 or 1250 mg/m\^2 and cisplatin 75 or 80 mg/m\^2. Additional dose of gemcitabine 1000 or 1250 mg/m\^2 on Day 8 of each cycle (For squamous participants only). 3. Gemcitabine 1000 or 1250 mg/m\^2 and carboplatin AUC 5 or 6 mg\*min/mL. Additional dose of gemcitabine 1000 or 1250 mg/m\^2 on Day 8 of each cycle (For squamous participants only). 4. Pemetrexed 500 mg/m\^2 and cisplatin 75 mg/m\^2 (For non-squamous participants only; pemetrexed maintenance dose was permitted). 5. Pemetrexed 500 mg/m\^2 and carboplatin AUC 5 or 6 mg\*min/mL (For non-squamous participants only; pemetrexed maintenance dose was permitted).
479
Total953

Baseline characteristics

CharacteristicAll Participants: Durvalumab + TremelimumabTotalAll Participants: SoC Chemotherapy
Age, Customized
All participants
<=18 years
0 Participants0 Participants0 Participants
Age, Customized
All participants
>=65 years
196 Participants431 Participants235 Participants
Age, Customized
All participants
Between 18 and 65 years
278 Participants522 Participants244 Participants
Age, Customized
China cohort
<=18 years
0 Participants0 Participants0 Participants
Age, Customized
China cohort
>=65 years
25 Participants56 Participants31 Participants
Age, Customized
China cohort
Between 18 and 65 years
53 Participants104 Participants51 Participants
Age, Customized
Global cohort
<=18 years
0 Participants0 Participants0 Participants
Age, Customized
Global cohort
>=65 years
177 Participants387 Participants210 Participants
Age, Customized
Global cohort
Between 18 and 65 years
233 Participants436 Participants203 Participants
Race/Ethnicity, Customized
All participants
American Indian or Alaska Native
10 Participants22 Participants12 Participants
Race/Ethnicity, Customized
All participants
Asian
150 Participants315 Participants165 Participants
Race/Ethnicity, Customized
All participants
Black or African American
3 Participants10 Participants7 Participants
Race/Ethnicity, Customized
All participants
Hispanic or Latino
50 Participants98 Participants48 Participants
Race/Ethnicity, Customized
All participants
Missing
1 Participants3 Participants2 Participants
Race/Ethnicity, Customized
All participants
Not Hispanic or Latino
423 Participants852 Participants429 Participants
Race/Ethnicity, Customized
All participants
Other
3 Participants7 Participants4 Participants
Race/Ethnicity, Customized
All participants
White
307 Participants596 Participants289 Participants
Race/Ethnicity, Customized
China cohort
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
China cohort
Asian
78 Participants160 Participants82 Participants
Race/Ethnicity, Customized
China cohort
Black or African American
0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
China cohort
Hispanic or Latino
0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
China cohort
Missing
0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
China cohort
Not Hispanic or Latino
78 Participants160 Participants82 Participants
Race/Ethnicity, Customized
China cohort
Other
0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
China cohort
White
0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Global cohort
American Indian or Alaska Native
10 Participants22 Participants12 Participants
Race/Ethnicity, Customized
Global cohort
Asian
86 Participants185 Participants99 Participants
Race/Ethnicity, Customized
Global cohort
Black or African American
3 Participants10 Participants7 Participants
Race/Ethnicity, Customized
Global cohort
Hispanic or Latino
50 Participants98 Participants48 Participants
Race/Ethnicity, Customized
Global cohort
Missing
1 Participants3 Participants2 Participants
Race/Ethnicity, Customized
Global cohort
Not Hispanic or Latino
359 Participants722 Participants363 Participants
Race/Ethnicity, Customized
Global cohort
Other
3 Participants7 Participants4 Participants
Race/Ethnicity, Customized
Global cohort
White
307 Participants596 Participants289 Participants
Sex: Female, Male
All participants
Female
127 Participants256 Participants129 Participants
Sex: Female, Male
All participants
Male
347 Participants697 Participants350 Participants
Sex: Female, Male
China cohort
Female
18 Participants43 Participants25 Participants
Sex: Female, Male
China cohort
Male
60 Participants117 Participants57 Participants
Sex: Female, Male
Global cohort
Female
113 Participants221 Participants108 Participants
Sex: Female, Male
Global cohort
Male
297 Participants602 Participants305 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
328 / 410329 / 41350 / 7862 / 82
other
Total, other adverse events
310 / 410349 / 39973 / 7777 / 78
serious
Total, serious adverse events
193 / 410112 / 39932 / 7722 / 78

Outcome results

Primary

OS; China Cohort: China Programmed Cell Death Ligand 1 (PD-L1) Negative NSCLC Analysis Set

The OS was defined as the time from the date of randomization until death due to any cause (ie, date of death or censoring - date of randomization + 1). Any participant not known to have died at the time of analysis was censored based on the last recorded date on which the participant was known to be alive. Median OS was calculated using the Kaplan-Meier technique.

Time frame: From baseline (Day 1, Week 0) until death due to any cause, assessed up to the China cohort DCO date (a maximum of approximately 44 months).

Population: The China PD-L1-negative population analysis set included the subset of participants in the China FAS whose PD-L1 status was PD-L1-negative at baseline as defined by the Ventana SP263 PD-L1 assay (ie, \<1% PD-L1-membrane expression in tumoral tissue). Only participants randomized in China cohort were analyzed.

ArmMeasureValue (MEDIAN)
Global: Durvalumab + TremelimumabOS; China Cohort: China Programmed Cell Death Ligand 1 (PD-L1) Negative NSCLC Analysis Set15.0 months
Global: SoC ChemotherapyOS; China Cohort: China Programmed Cell Death Ligand 1 (PD-L1) Negative NSCLC Analysis Set11.7 months
Comparison: China: Durvalumab + Tremelimumab Vs China: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer OS than SoC.95% CI: [0.322, 1.109]
Primary

Overall Survival (OS); Global Cohort: Blood Tumor Mutational Burden (bTMB) ≥20 Mutations Per Megabase (Mut/Mb) Analysis Set

The OS was defined as the time from the date of randomization until death due to any cause (ie, date of death or censoring - date of randomization + 1). Any participant not known to have died at the time of analysis was censored based on the last recorded date on which the participant was known to be alive. Median OS was calculated using the Kaplan-Meier technique.

Time frame: From baseline (Day 1, Week 0) until death due to any cause, assessed up to the Global cohort DCO date (a maximum of approximately 44 months).

Population: The bTMB ≥20 mut/Mb analysis set included the subset of participants in the FAS whose blood TMB status was ≥20 mut/Mb at baseline as defined by the GuardantOMNI CDx assay. Only participants randomized in Global cohort were analyzed as bTMB and tissue tumor mutational burden (tTMB) testing was not performed in China cohort.

ArmMeasureValue (MEDIAN)
Global: Durvalumab + TremelimumabOverall Survival (OS); Global Cohort: Blood Tumor Mutational Burden (bTMB) ≥20 Mutations Per Megabase (Mut/Mb) Analysis Set11.7 months
Global: SoC ChemotherapyOverall Survival (OS); Global Cohort: Blood Tumor Mutational Burden (bTMB) ≥20 Mutations Per Megabase (Mut/Mb) Analysis Set9.1 months
Comparison: Global: Durvalumab + Tremelimumab versus (Vs) Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer OS than SoC.p-value: 0.080895% CI: [0.485, 1.045]Log Rank
Secondary

Alive and Progression-Free at 12 Months (APF12); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis Sets

The APF12 was defined as the percentage of participants who were alive and progression free at 12 months from randomization (ie, PFS rate at 12 months). bTMB ≥20 mut/Mb, bTMB ≥16 mut/Mb and bTMB ≥12 mut/Mb analysis sets included the subset of participants in FAS whose bTMB status was ≥20 mut/Mb, ≥16 mut/Mb and ≥12 mut/Mb, respectively at baseline as defined by the GuardantOMNI CDx assay.

Time frame: Tumour scans performed at baseline then every 6 weeks up to 12 months.

Population: Participants included in bTMB ≥20 mut/Mb, bTMB ≥16 mut/Mb, and bTMB ≥12 mut/Mb analysis sets are reported in this outcome measure. Only participants randomized in Global cohort were analyzed as bTMB and tTMB testing was not performed in China cohort.

ArmMeasureGroupValue (NUMBER)
Global: Durvalumab + TremelimumabAlive and Progression-Free at 12 Months (APF12); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsbTMB ≥20 mut/Mb analysis set25.6 percentage of participants
Global: Durvalumab + TremelimumabAlive and Progression-Free at 12 Months (APF12); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsbTMB ≥16 mut/Mb analysis set22.0 percentage of participants
Global: Durvalumab + TremelimumabAlive and Progression-Free at 12 Months (APF12); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsbTMB ≥12 mut/Mb analysis set21.6 percentage of participants
Global: SoC ChemotherapyAlive and Progression-Free at 12 Months (APF12); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsbTMB ≥20 mut/Mb analysis set7.0 percentage of participants
Global: SoC ChemotherapyAlive and Progression-Free at 12 Months (APF12); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsbTMB ≥16 mut/Mb analysis set12.3 percentage of participants
Global: SoC ChemotherapyAlive and Progression-Free at 12 Months (APF12); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsbTMB ≥12 mut/Mb analysis set13.8 percentage of participants
Secondary

APF12; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis Sets

The APF12 was defined as the percentage of patients who were alive and progression free at 12 months from randomization (ie, PFS rate at 12 months). PD-L1-negative analysis set included the subset of participants in FAS whose PD-L1 status was PD-L1-negative at baseline as defined by the Ventana SP263 PD-L1 Assay (ie, \<1% PD-L1-membrane expression in tumoral tissue). Global Cohort: The FAS included all randomized participants prior to the end of global recruitment. China Cohort: The China FAS included all randomized participants in the China cohort and were used for all China only efficacy analyses.

Time frame: Tumour scans performed at baseline then every 6 weeks up to 12 months.

Population: Participants included in PD-L1-negative NSCLC and FAS analysis sets are reported in this outcome measure.

ArmMeasureGroupValue (NUMBER)
Global: Durvalumab + TremelimumabAPF12; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsPD-L1-negative NSCLC analysis set18.2 percentage of participants
Global: Durvalumab + TremelimumabAPF12; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsFAS20.2 percentage of participants
Global: SoC ChemotherapyAPF12; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsFAS14.9 percentage of participants
Global: SoC ChemotherapyAPF12; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsPD-L1-negative NSCLC analysis set12.1 percentage of participants
China: Durvalumab + TremelimumabAPF12; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsPD-L1-negative NSCLC analysis set15.6 percentage of participants
China: Durvalumab + TremelimumabAPF12; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsFAS23.9 percentage of participants
China: SoC ChemotherapyAPF12; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsPD-L1-negative NSCLC analysis set11.3 percentage of participants
China: SoC ChemotherapyAPF12; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsFAS16.6 percentage of participants
Secondary

DoR; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis Sets

DoR (per RECIST 1.1 using Investigator assessments) was defined as the time from the date of first documented response (CR or PR) until the first date of documented progression or death in the absence of PD (ie, date of PFS event or censoring - date of first response + 1). PD-L1-negative analysis set included the subset of participants in FAS whose PD-L1 status was PD-L1-negative at baseline as defined by the Ventana SP263 PD-L1 Assay (ie, \<1% PD-L1-membrane expression in tumoral tissue). Global Cohort: The FAS included all randomized participants prior to the end of global recruitment. China Cohort: The China FAS included all randomized participants in the China cohort and were used for all China only efficacy analyses.

Time frame: Tumour scans performed at baseline and every 6 weeks up to 48 weeks relative to date of randomization, then every 8 weeks thereafter until confirmed PD/death. Up to Global or China cohort DCO dates, as applicable (approximately 44 months) for each cohort.

Population: Participants included in PD-L1-negative NSCLC and FAS analysis sets are reported in this outcome measure. Only participants with objective response were included in this analysis.

ArmMeasureGroupValue (MEDIAN)
Global: Durvalumab + TremelimumabDoR; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsPD-L1-negative NSCLC analysis set10.2 months
Global: Durvalumab + TremelimumabDoR; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsFAS11.1 months
Global: SoC ChemotherapyDoR; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsFAS4.9 months
Global: SoC ChemotherapyDoR; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsPD-L1-negative NSCLC analysis set4.9 months
China: Durvalumab + TremelimumabDoR; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsPD-L1-negative NSCLC analysis set10.5 months
China: Durvalumab + TremelimumabDoR; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsFAS12.9 months
China: SoC ChemotherapyDoR; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsPD-L1-negative NSCLC analysis set6.1 months
China: SoC ChemotherapyDoR; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsFAS6.1 months
Comparison: PD-L1-negative analysis set:~Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer DoR than SoC.95% CI: [0.199, 0.787]
Comparison: PD-L1-negative analysis set:~China: Durvalumab + Tremelimumab Vs China: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer DoR than SoC.95% CI: [0.183, 2.86]
Comparison: FAS:~Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer DoR than SoC.95% CI: [0.324, 0.588]
Comparison: FAS:~China: Durvalumab + Tremelimumab Vs China: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer DoR than SoC.95% CI: [0.193, 0.761]
Secondary

Duration of Response (DoR); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis Sets

DoR (per RECIST 1.1 using Investigator assessments) was defined as the time from the date of first documented response (CR or PR) until the first date of documented progression or death in the absence of PD (ie, date of PFS event or censoring - date of first response + 1). bTMB ≥20 mut/Mb, bTMB ≥16 mut/Mb and bTMB ≥12 mut/Mb analysis sets included the subset of participants in FAS whose bTMB status was ≥20 mut/Mb, ≥16 mut/Mb and ≥12 mut/Mb, respectively at baseline as defined by the GuardantOMNI CDx assay.

Time frame: Tumour scans performed at baseline and every 6 weeks up to 48 weeks relative to date of randomization, then every 8 weeks thereafter until confirmed PD/death. Up to Global cohort DCO date (approximately 44 months).

Population: Participants included in bTMB ≥20 mut/Mb, bTMB ≥16 mut/Mb, and bTMB ≥12 mut/Mb analysis sets are reported in this outcome measure. Only participants with objective response and randomized in Global cohort were analyzed as bTMB and tTMB testing was not performed in China cohort.

ArmMeasureGroupValue (MEDIAN)
Global: Durvalumab + TremelimumabDuration of Response (DoR); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsbTMB ≥20 mut/Mb analysis set11.6 months
Global: Durvalumab + TremelimumabDuration of Response (DoR); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsbTMB ≥16 mut/Mb analysis set10.6 months
Global: Durvalumab + TremelimumabDuration of Response (DoR); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsbTMB ≥12 mut/Mb analysis set11.5 months
Global: SoC ChemotherapyDuration of Response (DoR); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsbTMB ≥20 mut/Mb analysis set4.2 months
Global: SoC ChemotherapyDuration of Response (DoR); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsbTMB ≥16 mut/Mb analysis set4.3 months
Global: SoC ChemotherapyDuration of Response (DoR); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsbTMB ≥12 mut/Mb analysis set4.3 months
Comparison: bTMB ≥20 mut/Mb analysis set: Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer DoR than SoC.95% CI: [0.113, 0.532]
Comparison: bTMB ≥16 mut/Mb analysis set: Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer DoR than SoC.95% CI: [0.196, 0.639]
Comparison: bTMB ≥12 mut/Mb analysis set: Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer DoR than SoC.95% CI: [0.233, 0.611]
Secondary

Number of Participants With ADA Response to Tremelimumab

Blood samples were measured for the presence of ADAs and ADA-nAb for tremelimumab using validated assays. ADA prevalence is defined as the percentage of participants with positive ADA result at any time, baseline or post-baseline. Treatment-emergent ADA is defined as the sum of treatment-induced ADA and treatment-boosted ADA. ADA incidence is the percentage of participants who were treatment-emergent ADA-positive. Treatment-boosted ADA is defined as baseline positive ADA titer that was boosted to \>=4 fold during the study period. Persistently positive is defined as having at least 2 post baseline ADA positive measurements with at least 16 weeks (112 days) between the first and last positive measurements, or an ADA positive result at the last available assessment. Transiently positive is defined as having at least 1 post baseline ADA positive measurement and not fulfilling the conditions for persistently positive.

Time frame: At Weeks 0 and 12; 3 and 6 months after last dose of study treatment.

Population: Global Cohort: The FAS included all randomized participants prior to the end of global recruitment. Any participants recruited in China, after global recruitment had ended, were not included in the FAS.~China Cohort: The China FAS included all randomized participants in the China cohort and were used for all China only efficacy analyses.~The denominator for calculation of percentage for all categories is the number of ADA evaluable participants.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Global: Durvalumab + TremelimumabNumber of Participants With ADA Response to TremelimumabTreatment-emergent ADA positive (ADA incidence)37 Participants
Global: Durvalumab + TremelimumabNumber of Participants With ADA Response to TremelimumabPersistent positive29 Participants
Global: Durvalumab + TremelimumabNumber of Participants With ADA Response to TremelimumabTreatment-induced ADA (positive post-baseline only)36 Participants
Global: Durvalumab + TremelimumabNumber of Participants With ADA Response to TremelimumabTransient positive11 Participants
Global: Durvalumab + TremelimumabNumber of Participants With ADA Response to TremelimumabTreatment-boosted ADA1 Participants
Global: Durvalumab + TremelimumabNumber of Participants With ADA Response to TremelimumabnAb positive at any visit33 Participants
Global: Durvalumab + TremelimumabNumber of Participants With ADA Response to TremelimumabADA positive post-baseline and positive at baseline4 Participants
Global: Durvalumab + TremelimumabNumber of Participants With ADA Response to TremelimumabADA positive at baseline and not detected post-baseline9 Participants
Global: Durvalumab + TremelimumabNumber of Participants With ADA Response to TremelimumabADA positive at any visit (ADA prevalence)49 Participants
Global: SoC ChemotherapyNumber of Participants With ADA Response to TremelimumabADA positive at baseline and not detected post-baseline0 Participants
Global: SoC ChemotherapyNumber of Participants With ADA Response to TremelimumabADA positive at any visit (ADA prevalence)2 Participants
Global: SoC ChemotherapyNumber of Participants With ADA Response to TremelimumabTreatment-emergent ADA positive (ADA incidence)1 Participants
Global: SoC ChemotherapyNumber of Participants With ADA Response to TremelimumabTreatment-boosted ADA0 Participants
Global: SoC ChemotherapyNumber of Participants With ADA Response to TremelimumabTreatment-induced ADA (positive post-baseline only)1 Participants
Global: SoC ChemotherapyNumber of Participants With ADA Response to TremelimumabADA positive post-baseline and positive at baseline1 Participants
Global: SoC ChemotherapyNumber of Participants With ADA Response to TremelimumabPersistent positive0 Participants
Global: SoC ChemotherapyNumber of Participants With ADA Response to TremelimumabTransient positive2 Participants
Global: SoC ChemotherapyNumber of Participants With ADA Response to TremelimumabnAb positive at any visit0 Participants
Secondary

Number of Participants With Anti-Drug Antibody (ADA) Response to Durvalumab

Blood samples were measured for the presence of ADAs and ADA-neutralizing antibodies (nAb) for durvalumab using validated assays. ADA prevalence is defined as the percentage of participants with positive ADA result at any time, baseline or post-baseline. Treatment-emergent ADA is defined as the sum of treatment-induced ADA and treatment-boosted ADA. ADA incidence is the percentage of participants who were treatment-emergent ADA-positive. Treatment-boosted ADA is defined as baseline positive ADA titer that was boosted to \>=4 fold during the study period. Persistently positive is defined as having at least 2 post baseline ADA positive measurements with at least 16 weeks (112 days) between the first and last positive measurements, or an ADA positive result at the last available assessment. Transiently positive is defined as having at least 1 post baseline ADA positive measurement and not fulfilling the conditions for persistently positive.

Time frame: At Weeks 0, 12, and 24; 3 and 6 months after last dose of study treatment.

Population: Global Cohort: The FAS included all randomized participants prior to the end of global recruitment. Any participants recruited in China, after global recruitment had ended, were not included in the FAS.~China Cohort: The China FAS included all randomized participants in the China cohort and were used for all China only efficacy analyses.~The denominator for calculation of percentage for all categories is the number of ADA evaluable participants.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Global: Durvalumab + TremelimumabNumber of Participants With Anti-Drug Antibody (ADA) Response to DurvalumabADA positive post-baseline and positive at baseline1 Participants
Global: Durvalumab + TremelimumabNumber of Participants With Anti-Drug Antibody (ADA) Response to DurvalumabTreatment-boosted ADA0 Participants
Global: Durvalumab + TremelimumabNumber of Participants With Anti-Drug Antibody (ADA) Response to DurvalumabPersistent positive11 Participants
Global: Durvalumab + TremelimumabNumber of Participants With Anti-Drug Antibody (ADA) Response to DurvalumabTreatment-emergent ADA positive (ADA incidence)12 Participants
Global: Durvalumab + TremelimumabNumber of Participants With Anti-Drug Antibody (ADA) Response to DurvalumabTransient positive2 Participants
Global: Durvalumab + TremelimumabNumber of Participants With Anti-Drug Antibody (ADA) Response to DurvalumabnAb positive at any visit3 Participants
Global: Durvalumab + TremelimumabNumber of Participants With Anti-Drug Antibody (ADA) Response to DurvalumabTreatment-induced ADA (positive post-baseline only)12 Participants
Global: Durvalumab + TremelimumabNumber of Participants With Anti-Drug Antibody (ADA) Response to DurvalumabADA positive at baseline and not detected post-baseline13 Participants
Global: Durvalumab + TremelimumabNumber of Participants With Anti-Drug Antibody (ADA) Response to DurvalumabADA positive at any visit (ADA prevalence)26 Participants
Global: SoC ChemotherapyNumber of Participants With Anti-Drug Antibody (ADA) Response to DurvalumabADA positive at baseline and not detected post-baseline0 Participants
Global: SoC ChemotherapyNumber of Participants With Anti-Drug Antibody (ADA) Response to DurvalumabADA positive at any visit (ADA prevalence)1 Participants
Global: SoC ChemotherapyNumber of Participants With Anti-Drug Antibody (ADA) Response to DurvalumabTreatment-emergent ADA positive (ADA incidence)1 Participants
Global: SoC ChemotherapyNumber of Participants With Anti-Drug Antibody (ADA) Response to DurvalumabTreatment-boosted ADA0 Participants
Global: SoC ChemotherapyNumber of Participants With Anti-Drug Antibody (ADA) Response to DurvalumabTreatment-induced ADA (positive post-baseline only)1 Participants
Global: SoC ChemotherapyNumber of Participants With Anti-Drug Antibody (ADA) Response to DurvalumabADA positive post-baseline and positive at baseline0 Participants
Global: SoC ChemotherapyNumber of Participants With Anti-Drug Antibody (ADA) Response to DurvalumabPersistent positive1 Participants
Global: SoC ChemotherapyNumber of Participants With Anti-Drug Antibody (ADA) Response to DurvalumabnAb positive at any visit0 Participants
Global: SoC ChemotherapyNumber of Participants With Anti-Drug Antibody (ADA) Response to DurvalumabTransient positive0 Participants
Secondary

Objective Response Rate (ORR); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis Sets

The ORR (per RECIST 1.1 using Investigator assessments) was defined as the percentage of participants with at least 1 visit response of complete response (CR) or partial response (PR) prior to PD. bTMB ≥20 mut/Mb, bTMB ≥16 mut/Mb and bTMB ≥12 mut/Mb analysis sets included the subset of participants in FAS whose bTMB status was ≥20 mut/Mb, ≥16 mut/Mb and ≥12 mut/Mb, respectively at baseline as defined by the GuardantOMNI CDx assay. tTMB ≥14 mut/Mb, tTMB ≥12 mut/Mb, tTMB ≥10 mut/Mb and tTMB ≥8 mut/Mb analysis sets included the subset of participants in FAS whose tTMB status was ≥14 mut/Mb, ≥12 mut/Mb, ≥10 mut/Mb and ≥8 mut/Mb, respectively at baseline as defined by the GuardantOMNI CDx assay.

Time frame: Tumour scans performed at baseline and every 6 weeks up to 48 weeks relative to date of randomization, then every 8 weeks thereafter until confirmed PD/death. Up to Global cohort DCO date (approximately 44 months).

Population: Participants included in bTMB ≥20 mut/Mb, bTMB ≥16 mut/Mb, bTMB ≥12 mut/Mb, tTMB ≥14 mut/Mb, tTMB ≥12 mut/Mb, tTMB ≥10 mut/Mb, and tTMB ≥8 mut/Mb analysis sets with measurable disease are reported in this outcome measure. Only participants randomized in Global cohort were analyzed as bTMB and tTMB testing was not performed in China cohort.

ArmMeasureGroupValue (NUMBER)
Global: Durvalumab + TremelimumabObjective Response Rate (ORR); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetsbTMB ≥12 mut/Mb analysis set28.7 percentage of participants
Global: Durvalumab + TremelimumabObjective Response Rate (ORR); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetstTMB ≥12 mut/Mb analysis set42.6 percentage of participants
Global: Durvalumab + TremelimumabObjective Response Rate (ORR); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetsbTMB ≥16 mut/Mb analysis set31.2 percentage of participants
Global: Durvalumab + TremelimumabObjective Response Rate (ORR); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetstTMB ≥10 mut/Mb analysis set37.7 percentage of participants
Global: Durvalumab + TremelimumabObjective Response Rate (ORR); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetstTMB ≥14 mut/Mb analysis set61.3 percentage of participants
Global: Durvalumab + TremelimumabObjective Response Rate (ORR); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetstTMB ≥8 mut/Mb analysis set36.7 percentage of participants
Global: Durvalumab + TremelimumabObjective Response Rate (ORR); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetsbTMB ≥20 mut/Mb analysis set27.5 percentage of participants
Global: SoC ChemotherapyObjective Response Rate (ORR); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetstTMB ≥8 mut/Mb analysis set41.2 percentage of participants
Global: SoC ChemotherapyObjective Response Rate (ORR); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetsbTMB ≥20 mut/Mb analysis set43.3 percentage of participants
Global: SoC ChemotherapyObjective Response Rate (ORR); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetsbTMB ≥16 mut/Mb analysis set46.1 percentage of participants
Global: SoC ChemotherapyObjective Response Rate (ORR); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetsbTMB ≥12 mut/Mb analysis set42.0 percentage of participants
Global: SoC ChemotherapyObjective Response Rate (ORR); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetstTMB ≥14 mut/Mb analysis set44.7 percentage of participants
Global: SoC ChemotherapyObjective Response Rate (ORR); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetstTMB ≥12 mut/Mb analysis set41.8 percentage of participants
Global: SoC ChemotherapyObjective Response Rate (ORR); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetstTMB ≥10 mut/Mb analysis set42.5 percentage of participants
Comparison: bTMB ≥20 mut/Mb analysis set: Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~An odds ratio \>1 favors Durvalumab + Tremelimumab combination therapy over SoC.95% CI: [0.236, 1.03]
Comparison: bTMB ≥16 mut/Mb analysis set: Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~An odds ratio \>1 favors Durvalumab + Tremelimumab combination therapy over SoC.95% CI: [0.288, 0.968]
Comparison: bTMB ≥12 mut/Mb analysis set: Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~An odds ratio \>1 favors Durvalumab + Tremelimumab combination therapy over SoC.95% CI: [0.336, 0.908]
Comparison: tTMB ≥14 mut/Mb analysis set: Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~An odds ratio \>1 favors Durvalumab + Tremelimumab combination therapy over SoC.95% CI: [0.752, 5.234]
Comparison: tTMB ≥12 mut/Mb analysis set: Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~An odds ratio \>1 favors Durvalumab + Tremelimumab combination therapy over SoC.95% CI: [0.482, 2.214]
Comparison: tTMB ≥10 mut/Mb analysis set: Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~An odds ratio \>1 favors Durvalumab + Tremelimumab combination therapy over SoC.95% CI: [0.43, 1.548]
Comparison: tTMB ≥8 mut/Mb analysis set: Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~An odds ratio \>1 favors Durvalumab + Tremelimumab combination therapy over SoC.95% CI: [0.456, 1.486]
Secondary

ORR; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis Sets

The ORR (per RECIST 1.1 using Investigator assessments) was defined as the percentage of participants with at least 1 visit response of CR or PR prior to PD. PD-L1-negative analysis set included the subset of participants in FAS whose PD-L1 status was PD-L1-negative at baseline as defined by the Ventana SP263 PD-L1 Assay (ie, \<1% PD-L1-membrane expression in tumoral tissue). Global Cohort: The FAS included all randomized participants prior to the end of global recruitment. China Cohort: The China FAS included all randomized participants in the China cohort and were used for all China only efficacy analyses. PD-L1 TC ≥25% and PD-L1 TC ≥50% analysis sets included the subset of participants in the FAS whose PD-L1 status was TC ≥25% and TC ≥50% membrane expression in tumoral tissue, respectively at baseline as defined by the Ventana SP263 PD-L1 Assay.

Time frame: Tumour scans performed at baseline and every 6 weeks up to 48 weeks relative to date of randomization, then every 8 weeks thereafter until confirmed PD/death. Up to Global or China cohort DCO dates, as applicable (approximately 44 months) for each cohort.

Population: Participants included in PD-L1-negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% analysis sets with measurable disease are reported in this outcome measure.

ArmMeasureGroupValue (NUMBER)
Global: Durvalumab + TremelimumabORR; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsFAS25.9 percentage of participants
Global: Durvalumab + TremelimumabORR; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1 TC ≥25% analysis set35.2 percentage of participants
Global: Durvalumab + TremelimumabORR; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1 TC ≥50% analysis set37.4 percentage of participants
Global: Durvalumab + TremelimumabORR; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1-negative NSCLC analysis set23.1 percentage of participants
Global: SoC ChemotherapyORR; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1-negative NSCLC analysis set38.8 percentage of participants
Global: SoC ChemotherapyORR; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1 TC ≥50% analysis set44.0 percentage of participants
Global: SoC ChemotherapyORR; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1 TC ≥25% analysis set43.9 percentage of participants
Global: SoC ChemotherapyORR; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsFAS41.7 percentage of participants
China: Durvalumab + TremelimumabORR; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1 TC ≥50% analysis set60.0 percentage of participants
China: Durvalumab + TremelimumabORR; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1-negative NSCLC analysis set23.1 percentage of participants
China: Durvalumab + TremelimumabORR; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1 TC ≥25% analysis set54.8 percentage of participants
China: Durvalumab + TremelimumabORR; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsFAS35.9 percentage of participants
China: SoC ChemotherapyORR; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1 TC ≥25% analysis set40.6 percentage of participants
China: SoC ChemotherapyORR; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsFAS39.0 percentage of participants
China: SoC ChemotherapyORR; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1-negative NSCLC analysis set41.4 percentage of participants
China: SoC ChemotherapyORR; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1 TC ≥50% analysis set46.4 percentage of participants
Comparison: PD-L1-negative analysis set:~Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~An odds ratio \>1 favors Durvalumab + Tremelimumab combination therapy over SoC.95% CI: [0.245, 0.869]
Comparison: PD-L1-negative analysis set:~China: Durvalumab + Tremelimumab Vs China: SoC Chemotherapy~An odds ratio \>1 favors Durvalumab + Tremelimumab combination therapy over SoC.95% CI: [0.124, 1.337]Binomial exact test
Comparison: FAS:~Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~An odds ratio \>1 favors Durvalumab + Tremelimumab combination therapy over SoC.95% CI: [0.356, 0.647]
Comparison: FAS:~China: Durvalumab + Tremelimumab Vs China: SoC Chemotherapy~An odds ratio \>1 favors Durvalumab + Tremelimumab combination therapy over SoC.95% CI: [0.45, 1.66]
Comparison: PD-L1 TC ≥25% analysis set:~Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~An odds ratio \>1 favors Durvalumab + Tremelimumab combination therapy over SoC.95% CI: [0.443, 1.079]
Comparison: PD-L1 TC ≥ 25% analysis set:~China: Durvalumab + Tremelimumab Vs China: SoC Chemotherapy~An odds ratio \>1 favors Durvalumab + Tremelimumab combination therapy over SoC.95% CI: [0.658, 4.919]
Comparison: PD-L1 TC ≥50% analysis set:~Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~An odds ratio \>1 favors Durvalumab + Tremelimumab combination therapy over SoC.95% CI: [0.449, 1.291]
Comparison: PD-L1 TC ≥50% analysis set:~China: Durvalumab + Tremelimumab Vs China: SoC Chemotherapy~An odds ratio \>1 favors Durvalumab + Tremelimumab combination therapy over SoC.95% CI: [0.585, 5.27]
Secondary

OS at Months 12, 18 and 24; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis Sets

The OS was defined as the time from the date of randomization until death due to any cause (ie, date of death or censoring - date of randomization + 1). PD-L1-negative analysis set included the subset of participants in FAS whose PD-L1 status was PD-L1-negative at baseline as defined by the Ventana SP263 PD-L1 Assay (ie, \<1% PD-L1-membrane expression in tumoral tissue). Global Cohort: The FAS included all randomized participants prior to the end of global recruitment. China Cohort: The China FAS included all randomized participants in the China cohort and were used for all China only efficacy analyses.

Time frame: Months 12, 18 and 24

Population: Participants included in PD-L1-negative NSCLC and FAS analysis sets are reported in this outcome measure.

ArmMeasureGroupValue (NUMBER)
Global: Durvalumab + TremelimumabOS at Months 12, 18 and 24; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsMonth 12: PD-L1-negative NSCLC analysis set47.8 percentage of participants
Global: Durvalumab + TremelimumabOS at Months 12, 18 and 24; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsMonth 12: FAS47.7 percentage of participants
Global: Durvalumab + TremelimumabOS at Months 12, 18 and 24; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsMonth 18: PD-L1-negative NSCLC analysis set34.1 percentage of participants
Global: Durvalumab + TremelimumabOS at Months 12, 18 and 24; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsMonth 18: FAS34.8 percentage of participants
Global: Durvalumab + TremelimumabOS at Months 12, 18 and 24; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsMonth 24: PD-L1-negative NSCLC analysis set22.1 percentage of participants
Global: Durvalumab + TremelimumabOS at Months 12, 18 and 24; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsMonth 24: FAS25.7 percentage of participants
Global: SoC ChemotherapyOS at Months 12, 18 and 24; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsMonth 24: FAS23.4 percentage of participants
Global: SoC ChemotherapyOS at Months 12, 18 and 24; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsMonth 18: FAS34.6 percentage of participants
Global: SoC ChemotherapyOS at Months 12, 18 and 24; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsMonth 12: PD-L1-negative NSCLC analysis set52.8 percentage of participants
Global: SoC ChemotherapyOS at Months 12, 18 and 24; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsMonth 18: PD-L1-negative NSCLC analysis set34.5 percentage of participants
Global: SoC ChemotherapyOS at Months 12, 18 and 24; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsMonth 12: FAS50.0 percentage of participants
Global: SoC ChemotherapyOS at Months 12, 18 and 24; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsMonth 24: PD-L1-negative NSCLC analysis set22.3 percentage of participants
China: Durvalumab + TremelimumabOS at Months 12, 18 and 24; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsMonth 12: FAS72.8 percentage of participants
China: Durvalumab + TremelimumabOS at Months 12, 18 and 24; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsMonth 18: PD-L1-negative NSCLC analysis set44.0 percentage of participants
China: Durvalumab + TremelimumabOS at Months 12, 18 and 24; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsMonth 18: FAS54.6 percentage of participants
China: Durvalumab + TremelimumabOS at Months 12, 18 and 24; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsMonth 24: FAS44.2 percentage of participants
China: Durvalumab + TremelimumabOS at Months 12, 18 and 24; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsMonth 24: PD-L1-negative NSCLC analysis set36.0 percentage of participants
China: Durvalumab + TremelimumabOS at Months 12, 18 and 24; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsMonth 12: PD-L1-negative NSCLC analysis set68.0 percentage of participants
China: SoC ChemotherapyOS at Months 12, 18 and 24; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsMonth 24: PD-L1-negative NSCLC analysis set17.9 percentage of participants
China: SoC ChemotherapyOS at Months 12, 18 and 24; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsMonth 24: FAS30.4 percentage of participants
China: SoC ChemotherapyOS at Months 12, 18 and 24; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsMonth 12: FAS53.1 percentage of participants
China: SoC ChemotherapyOS at Months 12, 18 and 24; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsMonth 18: FAS41.8 percentage of participants
China: SoC ChemotherapyOS at Months 12, 18 and 24; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsMonth 12: PD-L1-negative NSCLC analysis set46.4 percentage of participants
China: SoC ChemotherapyOS at Months 12, 18 and 24; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsMonth 18: PD-L1-negative NSCLC analysis set39.3 percentage of participants
Secondary

OS at Months 12, 18 and 24; Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis Sets

The OS was defined as the time from the date of randomization until death due to any cause (ie, date of death or censoring - date of randomization + 1). bTMB ≥20 mut/Mb, bTMB ≥16 mut/Mb and bTMB ≥12 mut/Mb analysis sets included the subset of participants in FAS whose bTMB status was ≥20 mut/Mb, ≥16 mut/Mb and ≥12 mut/Mb, respectively at baseline as defined by the GuardantOMNI CDx assay.

Time frame: Months 12, 18 and 24

Population: Participants included in bTMB ≥20 mut/Mb, bTMB ≥16 mut/Mb, and bTMB ≥12 mut/Mb analysis sets are reported in this outcome measure. Only participants randomized in Global cohort were analyzed as bTMB and tTMB testing was not performed in China cohort.

ArmMeasureGroupValue (NUMBER)
Global: Durvalumab + TremelimumabOS at Months 12, 18 and 24; Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsMonth 12: bTMB ≥16 mut/Mb analysis set50.5 percentage of participants
Global: Durvalumab + TremelimumabOS at Months 12, 18 and 24; Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsMonth 18: bTMB ≥12 mut/Mb analysis set29.4 percentage of participants
Global: Durvalumab + TremelimumabOS at Months 12, 18 and 24; Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsMonth 18: bTMB ≥20 mut/Mb analysis set36.2 percentage of participants
Global: Durvalumab + TremelimumabOS at Months 12, 18 and 24; Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsMonth 24: bTMB ≥20 mut/Mb analysis set26.1 percentage of participants
Global: Durvalumab + TremelimumabOS at Months 12, 18 and 24; Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsMonth 12: bTMB ≥12 mut/Mb analysis set46.9 percentage of participants
Global: Durvalumab + TremelimumabOS at Months 12, 18 and 24; Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsMonth 24: bTMB ≥16 mut/Mb analysis set24.0 percentage of participants
Global: Durvalumab + TremelimumabOS at Months 12, 18 and 24; Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsMonth 18: bTMB ≥16 mut/Mb analysis set35.5 percentage of participants
Global: Durvalumab + TremelimumabOS at Months 12, 18 and 24; Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsMonth 24: bTMB ≥12 mut/Mb analysis set21.3 percentage of participants
Global: Durvalumab + TremelimumabOS at Months 12, 18 and 24; Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsMonth 12: bTMB ≥20 mut/Mb analysis set49.3 percentage of participants
Global: SoC ChemotherapyOS at Months 12, 18 and 24; Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsMonth 24: bTMB ≥12 mut/Mb analysis set19.0 percentage of participants
Global: SoC ChemotherapyOS at Months 12, 18 and 24; Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsMonth 12: bTMB ≥20 mut/Mb analysis set40.8 percentage of participants
Global: SoC ChemotherapyOS at Months 12, 18 and 24; Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsMonth 12: bTMB ≥16 mut/Mb analysis set48.9 percentage of participants
Global: SoC ChemotherapyOS at Months 12, 18 and 24; Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsMonth 12: bTMB ≥12 mut/Mb analysis set44.6 percentage of participants
Global: SoC ChemotherapyOS at Months 12, 18 and 24; Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsMonth 18: bTMB ≥20 mut/Mb analysis set20.4 percentage of participants
Global: SoC ChemotherapyOS at Months 12, 18 and 24; Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsMonth 18: bTMB ≥16 mut/Mb analysis set28.5 percentage of participants
Global: SoC ChemotherapyOS at Months 12, 18 and 24; Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsMonth 18: bTMB ≥12 mut/Mb analysis set27.8 percentage of participants
Global: SoC ChemotherapyOS at Months 12, 18 and 24; Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsMonth 24: bTMB ≥20 mut/Mb analysis set13.6 percentage of participants
Global: SoC ChemotherapyOS at Months 12, 18 and 24; Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsMonth 24: bTMB ≥16 mut/Mb analysis set18.2 percentage of participants
Secondary

OS; Global and China Cohorts: FAS, PD-L1 Tumor Cell (TC) ≥25%, and PD-L1 TC ≥50% Analysis Sets

The OS was defined as time from date of randomization until death due to any cause (ie, date of death or censoring - date of randomization + 1). Any participant not known to have died at the time of analysis was censored based on last recorded date on which participant was known to be alive. Global Cohort: The FAS included all randomized participants prior to the end of global recruitment. Any participants recruited in China, after global recruitment had ended, were not included in the FAS. China Cohort: The China FAS included all randomized participants in the China cohort and were used for all China only efficacy analyses. PD-L1 TC ≥25% and PD-L1 TC ≥50% analysis sets included the subset of participants in the FAS whose PD-L1 status was TC ≥25% and TC ≥50% membrane expression in tumoral tissue, respectively at baseline as defined by the Ventana SP263 PD-L1 Assay.

Time frame: From baseline (Day 1, Week 0) until death due to any cause, assessed up to the Global or China cohort DCO dates, as applicable (a maximum of approximately 44 months) for each cohort.

Population: Participants included in FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% analysis sets are reported in this outcome measure.

ArmMeasureGroupValue (MEDIAN)
Global: Durvalumab + TremelimumabOS; Global and China Cohorts: FAS, PD-L1 Tumor Cell (TC) ≥25%, and PD-L1 TC ≥50% Analysis SetsFAS10.9 months
Global: Durvalumab + TremelimumabOS; Global and China Cohorts: FAS, PD-L1 Tumor Cell (TC) ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1 TC ≥50% analysis set14.1 months
Global: Durvalumab + TremelimumabOS; Global and China Cohorts: FAS, PD-L1 Tumor Cell (TC) ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1 TC ≥25% analysis set12.2 months
Global: SoC ChemotherapyOS; Global and China Cohorts: FAS, PD-L1 Tumor Cell (TC) ≥25%, and PD-L1 TC ≥50% Analysis SetsFAS12.1 months
Global: SoC ChemotherapyOS; Global and China Cohorts: FAS, PD-L1 Tumor Cell (TC) ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1 TC ≥50% analysis set10.5 months
Global: SoC ChemotherapyOS; Global and China Cohorts: FAS, PD-L1 Tumor Cell (TC) ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1 TC ≥25% analysis set10.4 months
China: Durvalumab + TremelimumabOS; Global and China Cohorts: FAS, PD-L1 Tumor Cell (TC) ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1 TC ≥25% analysis set36.6 months
China: Durvalumab + TremelimumabOS; Global and China Cohorts: FAS, PD-L1 Tumor Cell (TC) ≥25%, and PD-L1 TC ≥50% Analysis SetsFAS20.0 months
China: Durvalumab + TremelimumabOS; Global and China Cohorts: FAS, PD-L1 Tumor Cell (TC) ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1 TC ≥50% analysis set36.6 months
China: SoC ChemotherapyOS; Global and China Cohorts: FAS, PD-L1 Tumor Cell (TC) ≥25%, and PD-L1 TC ≥50% Analysis SetsFAS14.1 months
China: SoC ChemotherapyOS; Global and China Cohorts: FAS, PD-L1 Tumor Cell (TC) ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1 TC ≥50% analysis set15.8 months
China: SoC ChemotherapyOS; Global and China Cohorts: FAS, PD-L1 Tumor Cell (TC) ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1 TC ≥25% analysis set15.8 months
Comparison: FAS:~Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer OS than SoC.95% CI: [0.871, 1.186]
Comparison: FAS:~China: Durvalumab + Tremelimumab Vs China: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer OS than SoC.95% CI: [0.48, 1.018]
Comparison: PD-L1 TC ≥25% analysis set:~Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer OS than SoC.95% CI: [0.654, 1.078]
Comparison: PD-L1 TC ≥ 25% analysis set:~China: Durvalumab + Tremelimumab Vs China: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer OS than SoC.95% CI: [0.289, 1.065]
Comparison: PD-L1 TC ≥50% analysis set:~Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer OS than SoC.95% CI: [0.587, 1.081]
Comparison: PD-L1 TC ≥50% analysis set:~China: Durvalumab + Tremelimumab Vs China: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer OS than SoC.95% CI: [0.222, 0.955]
Secondary

OS; Global Cohort: bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, PD-L1-Negative NSCLC, bTMB <20 Mut/Mb, bTMB Non-Evaluable Population, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis Sets

OS was defined as time from date of randomization until death due to any cause (ie, date of death or censoring - date of randomization + 1). Any participant not known to have died at time of analysis was censored based on last recorded date on which participant was known to be alive. bTMB ≥16 mut/Mb, bTMB ≥12 mut/Mb and bTMB \<20 mut/Mb analysis sets included the subset of participants in FAS whose bTMB status was ≥16 mut/Mb, ≥12 mut/Mb and \<20 mut/Mb, respectively at baseline as defined by the GuardantOMNI CDx assay. PD-L1-negative analysis set included the subset of participants in FAS whose PD-L1 status was PD-L1-negative at baseline as defined by the Ventana SP263 PD-L1 Assay (ie, \<1% PD-L1-membrane expression in tumoral tissue). bTMB non-evaluable analysis set included the subset of participants in FAS whose bTMB status at baseline could not be determined by the GuardantOMNI CDx assay or whose sample was not available. tTMB analysis sets are defined same as the bTMB analysis sets.

Time frame: From baseline (Day 1, Week 0) until death due to any cause, assessed up to the Global cohort DCO date (a maximum of approximately 44 months).

Population: Participants included in bTMB ≥16 mut/Mb, bTMB ≥12 mut/Mb, PD-L1-Negative NSCLC, bTMB \<20 mut/Mb, bTMB non-evaluable population, tTMB ≥14 mut/Mb, tTMB ≥12 mut/Mb, tTMB ≥10 mut/Mb, and tTMB ≥8 mut/Mb analysis sets are reported in this outcome measure. Only participants randomized in Global cohort were analyzed as bTMB and tTMB testing was not performed in China cohort.

ArmMeasureGroupValue (MEDIAN)
Global: Durvalumab + TremelimumabOS; Global Cohort: bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, PD-L1-Negative NSCLC, bTMB <20 Mut/Mb, bTMB Non-Evaluable Population, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetsbTMB ≥12 mut/Mb analysis set10.9 months
Global: Durvalumab + TremelimumabOS; Global Cohort: bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, PD-L1-Negative NSCLC, bTMB <20 Mut/Mb, bTMB Non-Evaluable Population, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetstTMB ≥14 mut/Mb analysis set17.5 months
Global: Durvalumab + TremelimumabOS; Global Cohort: bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, PD-L1-Negative NSCLC, bTMB <20 Mut/Mb, bTMB Non-Evaluable Population, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetsbTMB <20 mut/Mb analysis set9.9 months
Global: Durvalumab + TremelimumabOS; Global Cohort: bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, PD-L1-Negative NSCLC, bTMB <20 Mut/Mb, bTMB Non-Evaluable Population, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetstTMB ≥12 mut/Mb analysis set11.1 months
Global: Durvalumab + TremelimumabOS; Global Cohort: bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, PD-L1-Negative NSCLC, bTMB <20 Mut/Mb, bTMB Non-Evaluable Population, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetsPD-L1 negative analysis set11.1 months
Global: Durvalumab + TremelimumabOS; Global Cohort: bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, PD-L1-Negative NSCLC, bTMB <20 Mut/Mb, bTMB Non-Evaluable Population, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetstTMB ≥10 mut/Mb analysis set11.1 months
Global: Durvalumab + TremelimumabOS; Global Cohort: bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, PD-L1-Negative NSCLC, bTMB <20 Mut/Mb, bTMB Non-Evaluable Population, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetsbTMB non-evaluable analysis set9.3 months
Global: Durvalumab + TremelimumabOS; Global Cohort: bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, PD-L1-Negative NSCLC, bTMB <20 Mut/Mb, bTMB Non-Evaluable Population, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetstTMB ≥8 mut/Mb analysis set11.0 months
Global: Durvalumab + TremelimumabOS; Global Cohort: bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, PD-L1-Negative NSCLC, bTMB <20 Mut/Mb, bTMB Non-Evaluable Population, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetsbTMB ≥16 mut/Mb analysis set12.1 months
Global: SoC ChemotherapyOS; Global Cohort: bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, PD-L1-Negative NSCLC, bTMB <20 Mut/Mb, bTMB Non-Evaluable Population, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetstTMB ≥8 mut/Mb analysis set10.2 months
Global: SoC ChemotherapyOS; Global Cohort: bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, PD-L1-Negative NSCLC, bTMB <20 Mut/Mb, bTMB Non-Evaluable Population, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetsbTMB ≥16 mut/Mb analysis set11.9 months
Global: SoC ChemotherapyOS; Global Cohort: bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, PD-L1-Negative NSCLC, bTMB <20 Mut/Mb, bTMB Non-Evaluable Population, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetsbTMB ≥12 mut/Mb analysis set10.3 months
Global: SoC ChemotherapyOS; Global Cohort: bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, PD-L1-Negative NSCLC, bTMB <20 Mut/Mb, bTMB Non-Evaluable Population, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetsPD-L1 negative analysis set12.5 months
Global: SoC ChemotherapyOS; Global Cohort: bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, PD-L1-Negative NSCLC, bTMB <20 Mut/Mb, bTMB Non-Evaluable Population, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetsbTMB <20 mut/Mb analysis set11.5 months
Global: SoC ChemotherapyOS; Global Cohort: bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, PD-L1-Negative NSCLC, bTMB <20 Mut/Mb, bTMB Non-Evaluable Population, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetsbTMB non-evaluable analysis set10.4 months
Global: SoC ChemotherapyOS; Global Cohort: bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, PD-L1-Negative NSCLC, bTMB <20 Mut/Mb, bTMB Non-Evaluable Population, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetstTMB ≥14 mut/Mb analysis set10.6 months
Global: SoC ChemotherapyOS; Global Cohort: bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, PD-L1-Negative NSCLC, bTMB <20 Mut/Mb, bTMB Non-Evaluable Population, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetstTMB ≥12 mut/Mb analysis set13.9 months
Global: SoC ChemotherapyOS; Global Cohort: bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, PD-L1-Negative NSCLC, bTMB <20 Mut/Mb, bTMB Non-Evaluable Population, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetstTMB ≥10 mut/Mb analysis set10.6 months
Comparison: bTMB ≥16 mut/Mb analysis set: Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer OS than SoC.95% CI: [0.629, 1.201]
Comparison: bTMB ≥12 mut/Mb analysis set: Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer OS than SoC.95% CI: [0.726, 1.213]
Comparison: PD-L1 negative analysis set:~Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer OS than SoC.95% CI: [0.786, 1.464]
Comparison: bTMB \<20 mut/Mb analysis set: Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer OS than SoC.95% CI: [0.835, 1.302]
Comparison: bTMB non-evaluable analysis set: Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer OS than SoC.95% CI: [0.758, 1.353]
Comparison: tTMB ≥14 mut/Mb analysis set: Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer OS than SoC.95% CI: [0.309, 1.008]
Comparison: tTMB ≥12 mut/Mb analysis set: Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer OS than SoC.95% CI: [0.56, 1.35]
Comparison: tTMB ≥10 mut/Mb analysis set: Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer OS than SoC.95% CI: [0.614, 1.251]
Comparison: tTMB ≥8 mut/Mb analysis set: Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer OS than SoC.95% CI: [0.564, 1.08]
Secondary

PFS2; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis Sets

The PFS2 was defined as the time from the date of randomization to the earliest of the progression events subsequent to that used for the primary variable PFS, or death (ie, date of PFS2 event or censoring - date of randomization + 1). PD-L1-negative analysis set included the subset of participants in FAS whose PD-L1 status was PD-L1-negative at baseline as defined by the Ventana SP263 PD-L1 Assay (ie, \<1% PD-L1-membrane expression in tumoral tissue). Global Cohort: The FAS included all randomized participants prior to the end of global recruitment. China Cohort: The China FAS included all randomized participants in the China cohort and were used for all China only efficacy analyses.

Time frame: Tumour scans performed at baseline and every 6 weeks up to 48 weeks relative to date of randomization, then every 8 weeks thereafter until confirmed PD/death. Up to Global or China cohort DCO dates, as applicable (approximately 44 months) for each cohort.

Population: Participants included in PD-L1-negative NSCLC and FAS analysis sets are reported in this outcome measure.

ArmMeasureGroupValue (MEDIAN)
Global: Durvalumab + TremelimumabPFS2; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsPD-L1-negative NSCLC analysis set9.1 months
Global: Durvalumab + TremelimumabPFS2; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsFAS9.4 months
Global: SoC ChemotherapyPFS2; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsFAS10.4 months
Global: SoC ChemotherapyPFS2; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsPD-L1-negative NSCLC analysis set12.4 months
China: Durvalumab + TremelimumabPFS2; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsPD-L1-negative NSCLC analysis set13.8 months
China: Durvalumab + TremelimumabPFS2; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsFAS15.5 months
China: SoC ChemotherapyPFS2; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsPD-L1-negative NSCLC analysis set10.3 months
China: SoC ChemotherapyPFS2; Global and China Cohorts: PD-L1-Negative NSCLC and FAS Analysis SetsFAS12.9 months
Comparison: FAS:~Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab to be associated with a longer time to second progression than SoC.95% CI: [0.845, 1.147]
Comparison: FAS:~China: Durvalumab + Tremelimumab Vs China: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab to be associated with a longer time to second progression than SoC.95% CI: [0.492, 1.03]
Comparison: PD-L1-negative analysis set:~Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab to be associated with a longer time to second progression than SoC.95% CI: [0.748, 1.388]
Comparison: PD-L1-negative analysis set:~China: Durvalumab + Tremelimumab Vs China: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab to be associated with a longer time to second progression than SoC.95% CI: [0.36, 1.219]
Secondary

PFS; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis Sets

PFS (per RECIST 1.1 using Investigator assessments) was defined as time from date of randomization until date of objective PD or death regardless of whether participant withdrew from randomized therapy or received another anticancer therapy prior to progression (ie, date of PFS event or censoring - date of randomization + 1). PD-L1-negative analysis set included subset of participants in FAS whose PD-L1 status was PD-L1-negative at baseline as defined by Ventana SP263 PD-L1 Assay (ie, \<1% PD-L1-membrane expression in tumoral tissue). Global Cohort: FAS included all randomized participants prior to end of global recruitment. China Cohort: China FAS included all randomized participants in China cohort and were used for all China only efficacy analyses. PD-L1 TC ≥25% and PD-L1 TC ≥50% analysis sets included subset of participants in FAS whose PD-L1 status was TC ≥25% and TC ≥50% membrane expression in tumoral tissue, respectively at baseline as defined by the Ventana SP263 PD-L1 Assay.

Time frame: Tumour scans performed at baseline and every 6 weeks up to 48 weeks relative to date of randomization, then every 8 weeks thereafter until confirmed PD/death. Up to Global or China cohort DCO dates, as applicable (approximately 44 months) for each cohort.

Population: Participants included in PD-L1-negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% analysis sets are reported in this outcome measure.

ArmMeasureGroupValue (MEDIAN)
Global: Durvalumab + TremelimumabPFS; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1-negative NSCLC analysis set4.1 months
Global: Durvalumab + TremelimumabPFS; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsFAS4.0 months
Global: Durvalumab + TremelimumabPFS; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1 TC ≥25% analysis set4.2 months
Global: Durvalumab + TremelimumabPFS; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1 TC ≥50% analysis set4.6 months
Global: SoC ChemotherapyPFS; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsFAS5.6 months
Global: SoC ChemotherapyPFS; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1 TC ≥25% analysis set5.4 months
Global: SoC ChemotherapyPFS; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1 TC ≥50% analysis set5.4 months
Global: SoC ChemotherapyPFS; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1-negative NSCLC analysis set5.6 months
China: Durvalumab + TremelimumabPFS; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1 TC ≥25% analysis set6.8 months
China: Durvalumab + TremelimumabPFS; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsFAS4.2 months
China: Durvalumab + TremelimumabPFS; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1 TC ≥50% analysis set6.8 months
China: Durvalumab + TremelimumabPFS; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1-negative NSCLC analysis set5.1 months
China: SoC ChemotherapyPFS; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1 TC ≥50% analysis set5.7 months
China: SoC ChemotherapyPFS; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsFAS6.0 months
China: SoC ChemotherapyPFS; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1-negative NSCLC analysis set6.0 months
China: SoC ChemotherapyPFS; Global and China Cohorts: PD-L1-Negative NSCLC, FAS, PD-L1 TC ≥25%, and PD-L1 TC ≥50% Analysis SetsPD-L1 TC ≥25% analysis set5.7 months
Comparison: PD-L1-negative analysis set:~Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer PFS than SoC.95% CI: [0.81, 1.517]
Comparison: PD-L1-negative analysis set:~China: Durvalumab + Tremelimumab Vs China: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer PFS than SoC.95% CI: [0.592, 2.141]
Comparison: FAS:~Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer PFS than SoC.95% CI: [0.924, 1.253]
Comparison: FAS:~China: Durvalumab + Tremelimumab Vs China: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer PFS than SoC.95% CI: [0.655, 1.362]
Comparison: PD-L1 TC ≥25% analysis set:~Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer PFS than SoC.95% CI: [0.621, 1.024]
Comparison: PD-L1 TC ≥ 25% analysis set:~China: Durvalumab + Tremelimumab Vs China: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer PFS than SoC.95% CI: [0.389, 1.317]
Comparison: PD-L1 TC ≥50% analysis set:~Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer PFS than SoC.95% CI: [0.542, 1.01]
Comparison: PD-L1 TC ≥50% analysis set:~China: Durvalumab + Tremelimumab Vs China: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer PFS than SoC.95% CI: [0.335, 1.251]
Secondary

Progression-Free Survival (PFS); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis Sets

The PFS (per Response Evaluation Criteria in Solid Tumors, version 1.1 \[RECIST 1.1\] using Investigator assessments) was defined as the time from the date of randomization until the date of objective PD or death (by any cause in the absence of progression) regardless of whether the participant withdrew from randomized therapy or received another anticancer therapy prior to progression (ie, date of PFS event or censoring - date of randomization + 1). bTMB ≥20 mut/Mb, bTMB ≥16 mut/Mb and bTMB ≥12 mut/Mb analysis sets included the subset of participants in FAS whose bTMB status was ≥20 mut/Mb, ≥16 mut/Mb and ≥12 mut/Mb, respectively at baseline as defined by the GuardantOMNI CDx assay. tTMB ≥14 mut/Mb, tTMB ≥12 mut/Mb, tTMB ≥10 mut/Mb and tTMB ≥8 mut/Mb analysis sets included the subset of participants in FAS whose tTMB status was ≥14 mut/Mb, ≥12 mut/Mb, ≥10 mut/Mb and ≥8 mut/Mb, respectively at baseline as defined by the GuardantOMNI CDx assay.

Time frame: Tumour scans performed at baseline and every 6 weeks up to 48 weeks relative to date of randomization, then every 8 weeks thereafter until confirmed PD/death. Up to Global cohort DCO date (approximately 44 months).

Population: Participants included in bTMB ≥20 mut/Mb, bTMB ≥16 mut/Mb, bTMB ≥12 mut/Mb, tTMB ≥14 mut/Mb, tTMB ≥12 mut/Mb, tTMB ≥10 mut/Mb, and tTMB ≥8 mut/Mb analysis sets are reported in this outcome measure. Only participants randomized in Global cohort were analyzed as bTMB and tTMB testing was not performed in China cohort.

ArmMeasureGroupValue (MEDIAN)
Global: Durvalumab + TremelimumabProgression-Free Survival (PFS); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetsbTMB ≥12 mut/Mb analysis set3.9 months
Global: Durvalumab + TremelimumabProgression-Free Survival (PFS); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetstTMB ≥12 mut/Mb analysis set5.2 months
Global: Durvalumab + TremelimumabProgression-Free Survival (PFS); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetsbTMB ≥16 mut/Mb analysis set4.2 months
Global: Durvalumab + TremelimumabProgression-Free Survival (PFS); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetstTMB ≥10 mut/Mb analysis set4.3 months
Global: Durvalumab + TremelimumabProgression-Free Survival (PFS); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetstTMB ≥14 mut/Mb analysis set8.7 months
Global: Durvalumab + TremelimumabProgression-Free Survival (PFS); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetstTMB ≥8 mut/Mb analysis set4.4 months
Global: Durvalumab + TremelimumabProgression-Free Survival (PFS); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetsbTMB ≥20 mut/Mb analysis set4.2 months
Global: SoC ChemotherapyProgression-Free Survival (PFS); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetstTMB ≥8 mut/Mb analysis set5.0 months
Global: SoC ChemotherapyProgression-Free Survival (PFS); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetsbTMB ≥20 mut/Mb analysis set5.1 months
Global: SoC ChemotherapyProgression-Free Survival (PFS); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetsbTMB ≥16 mut/Mb analysis set5.5 months
Global: SoC ChemotherapyProgression-Free Survival (PFS); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetsbTMB ≥12 mut/Mb analysis set5.1 months
Global: SoC ChemotherapyProgression-Free Survival (PFS); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetstTMB ≥14 mut/Mb analysis set5.8 months
Global: SoC ChemotherapyProgression-Free Survival (PFS); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetstTMB ≥12 mut/Mb analysis set5.8 months
Global: SoC ChemotherapyProgression-Free Survival (PFS); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, bTMB ≥12 Mut/Mb, tTMB ≥14 Mut/Mb, tTMB ≥12 Mut/Mb, tTMB ≥10 Mut/Mb, and tTMB ≥8 Mut/Mb Analysis SetstTMB ≥10 mut/Mb analysis set5.1 months
Comparison: bTMB ≥20 mut/Mb analysis set: Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer PFS than SoC.95% CI: [0.514, 1.146]
Comparison: bTMB ≥16 mut/Mb analysis set: Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer PFS than SoC.95% CI: [0.623, 1.189]
Comparison: bTMB ≥12 mut/Mb analysis set: Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer PFS than SoC.95% CI: [0.714, 1.193]
Comparison: tTMB ≥14 mut/Mb analysis set: Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer PFS than SoC.95% CI: [0.258, 0.818]
Comparison: tTMB ≥12 mut/Mb analysis set: Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer PFS than SoC.95% CI: [0.524, 1.228]
Comparison: tTMB ≥10 mut/Mb analysis set: Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer PFS than SoC.95% CI: [0.585, 1.177]
Comparison: tTMB ≥8 mut/Mb analysis set: Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab combination therapy to be associated with a longer PFS than SoC.95% CI: [0.534, 1.017]
Secondary

Serum Concentrations of Durvalumab

Blood samples were collected to determine the serum concentration of durvalumab.

Time frame: Pre-dose and within 1 hour after end of infusion at Week 0 and 12; pre-dose on Week 24 and at follow-up Month 3

Population: Global Cohort: The FAS included all randomized participants prior to the end of global recruitment. Any participants recruited in China, after global recruitment had ended, were not included in the FAS.~China Cohort: The China FAS included all randomized participants in the China cohort and were used for all China only efficacy analyses.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Global: Durvalumab + TremelimumabSerum Concentrations of DurvalumabWeek 0: Pre-infusionNA microgram per milliliter (µg/mL)
Global: Durvalumab + TremelimumabSerum Concentrations of DurvalumabWeek 0: End of infusion418.6 microgram per milliliter (µg/mL)Geometric Coefficient of Variation 74.8
Global: Durvalumab + TremelimumabSerum Concentrations of DurvalumabWeek 12: Pre-infusion77.5 microgram per milliliter (µg/mL)Geometric Coefficient of Variation 138.1
Global: Durvalumab + TremelimumabSerum Concentrations of DurvalumabWeek 12: End of infusion434.3 microgram per milliliter (µg/mL)Geometric Coefficient of Variation 105.6
Global: Durvalumab + TremelimumabSerum Concentrations of DurvalumabWeek 24: Pre-infusion108.8 microgram per milliliter (µg/mL)Geometric Coefficient of Variation 95.7
Global: Durvalumab + TremelimumabSerum Concentrations of DurvalumabFollow-up Month 38.8 microgram per milliliter (µg/mL)Geometric Coefficient of Variation 253.9
Global: SoC ChemotherapySerum Concentrations of DurvalumabWeek 24: Pre-infusion85.6 microgram per milliliter (µg/mL)Geometric Coefficient of Variation 93.9
Global: SoC ChemotherapySerum Concentrations of DurvalumabWeek 0: Pre-infusionNA microgram per milliliter (µg/mL)
Global: SoC ChemotherapySerum Concentrations of DurvalumabWeek 12: End of infusion448.9 microgram per milliliter (µg/mL)Geometric Coefficient of Variation 40
Global: SoC ChemotherapySerum Concentrations of DurvalumabWeek 0: End of infusion392.7 microgram per milliliter (µg/mL)Geometric Coefficient of Variation 48.9
Global: SoC ChemotherapySerum Concentrations of DurvalumabFollow-up Month 35.4 microgram per milliliter (µg/mL)Geometric Coefficient of Variation 351.7
Global: SoC ChemotherapySerum Concentrations of DurvalumabWeek 12: Pre-infusion72.4 microgram per milliliter (µg/mL)Geometric Coefficient of Variation 55
Secondary

Serum Concentrations of Tremelimumab

Blood samples were collected to determine the serum concentration of tremelimumab.

Time frame: Pre-dose and within 1 hour after end of infusion at Week 0 and 12, and at follow-up Month 3

Population: Global Cohort: The FAS included all randomized participants prior to the end of global recruitment. Any participants recruited in China, after global recruitment had ended, were not included in the FAS.~China Cohort: The China FAS included all randomized participants in the China cohort and were used for all China only efficacy analyses.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Global: Durvalumab + TremelimumabSerum Concentrations of TremelimumabWeek 0: End of infusion20.3 µg/mLGeometric Coefficient of Variation 38.7
Global: Durvalumab + TremelimumabSerum Concentrations of TremelimumabWeek 12: End of infusion20.8 µg/mLGeometric Coefficient of Variation 67.4
Global: Durvalumab + TremelimumabSerum Concentrations of TremelimumabWeek 12: Pre-infusion3.4 µg/mLGeometric Coefficient of Variation 99.6
Global: Durvalumab + TremelimumabSerum Concentrations of TremelimumabFollow-up Month 3NA µg/mL
Global: Durvalumab + TremelimumabSerum Concentrations of TremelimumabWeek 0: Pre-infusionNA µg/mL
Global: SoC ChemotherapySerum Concentrations of TremelimumabFollow-up Month 3NA µg/mL
Global: SoC ChemotherapySerum Concentrations of TremelimumabWeek 0: Pre-infusionNA µg/mL
Global: SoC ChemotherapySerum Concentrations of TremelimumabWeek 0: End of infusion18.4 µg/mLGeometric Coefficient of Variation 43.3
Global: SoC ChemotherapySerum Concentrations of TremelimumabWeek 12: Pre-infusion3.3 µg/mLGeometric Coefficient of Variation 64.6
Global: SoC ChemotherapySerum Concentrations of TremelimumabWeek 12: End of infusion23.2 µg/mLGeometric Coefficient of Variation 43.4
Secondary

Time From Randomization to Second Progression or Death (PFS2); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis Sets

The PFS2 was defined as the time from the date of randomization to the earliest of the progression events subsequent to that used for the primary variable PFS, or death (ie, date of PFS2 event or censoring - date of randomization + 1). bTMB ≥20 mut/Mb, bTMB ≥16 mut/Mb and bTMB ≥12 mut/Mb analysis sets included the subset of participants in FAS whose bTMB status was ≥20 mut/Mb, ≥16 mut/Mb and ≥12 mut/Mb, respectively at baseline as defined by the GuardantOMNI CDx assay.

Time frame: Tumour scans performed at baseline and every 6 weeks up to 48 weeks relative to date of randomization, then every 8 weeks thereafter until confirmed PD/death. Up to Global cohort DCO date (approximately 44 months).

Population: Participants included in bTMB ≥20 mut/Mb, bTMB ≥16 mut/Mb, and bTMB ≥12 mut/Mb analysis sets are reported in this outcome measure. Only participants randomized in Global cohort were analyzed as bTMB and tTMB testing was not performed in China cohort.

ArmMeasureGroupValue (MEDIAN)
Global: Durvalumab + TremelimumabTime From Randomization to Second Progression or Death (PFS2); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsbTMB ≥20 mut/Mb analysis set10.6 months
Global: Durvalumab + TremelimumabTime From Randomization to Second Progression or Death (PFS2); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsbTMB ≥16 mut/Mb analysis set10.9 months
Global: Durvalumab + TremelimumabTime From Randomization to Second Progression or Death (PFS2); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsbTMB ≥12 mut/Mb analysis set9.9 months
Global: SoC ChemotherapyTime From Randomization to Second Progression or Death (PFS2); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsbTMB ≥20 mut/Mb analysis set8.6 months
Global: SoC ChemotherapyTime From Randomization to Second Progression or Death (PFS2); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsbTMB ≥16 mut/Mb analysis set10.5 months
Global: SoC ChemotherapyTime From Randomization to Second Progression or Death (PFS2); Global Cohort: bTMB ≥20 Mut/Mb, bTMB ≥16 Mut/Mb, and bTMB ≥12 Mut/Mb Analysis SetsbTMB ≥12 mut/Mb analysis set9.0 months
Comparison: bTMB ≥20 mut/Mb analysis set: Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab to be associated with a longer time to second progression than SoC.95% CI: [0.494, 1.058]
Comparison: bTMB ≥16 mut/Mb analysis set: Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab to be associated with a longer time to second progression than SoC.95% CI: [0.607, 1.151]
Comparison: bTMB ≥12 mut/Mb analysis set: Global: Durvalumab + Tremelimumab Vs Global: SoC Chemotherapy~A HR \<1 favors Durvalumab + Tremelimumab to be associated with a longer time to second progression than SoC.95% CI: [0.689, 1.146]

Source: ClinicalTrials.gov · Data processed: Feb 27, 2026