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Phase III Open Label Study of MEDI 4736 With/Without Tremelimumab Versus Standard of Care (SOC) in Recurrent/Metastatic Head and Neck Cancer

A Phase III Randomized, Open-label, Multi-center, Global Study of MEDI4736 Alone or in Combination With Tremelimumab Versus Standard of Care in the Treatment of First-line Recurrent or Metastatic Squamous Cell Head and Neck Cancer Patients

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02551159
Acronym
KESTREL
Enrollment
823
Registered
2015-09-16
Start date
2015-10-15
Completion date
2021-05-21
Last updated
2021-10-13

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

Conditions

Squamous Cell Carcinoma of the Head and Neck

Keywords

programmed cell death ligand 1 (PD-L1), MEDI4736, Cytotoxic T-lymphocyte-associated antigen 4 {CTLA-4}, PFS, SCCHN

Brief summary

This is a randomized, open-label, multi-center, 3-arm, global Phase III study to determine the efficacy and safety of MEDI4736 + tremelimumab combination or MEDI4736 monotherapy versus SoC (EXTREME regimen) in the treatment of patients with SCCHN who have not received prior systemic chemotherapy for recurrent or metastatic disease.

Detailed description

Patients will be randomized in a 2:1:1 ratio to MEDI4736 + tremelimumab combination therapy, MEDI4736 monotherapy, or SoC. Patients in all arms will continue therapy until progression. Tumor assessments will be performed on computed tomography scans or magnetic resonance imaging scans, preferably with intravenous (IV) contrast. Efficacy for all patients will be assessed by objective tumor assessments every 6 weeks for the first 24 weeks, then every 8 weeks thereafter until treatment discontinuation due to progression or toxicity. All patients will be followed every 3 months for survival after progression is confirmed.

Interventions

BIOLOGICALMEDI4736

Anti-PD-L1 antibody

BIOLOGICALTremelimumab

Anti-CTLA-4 Antibody

BIOLOGICALCetuximab

Monoclonal Antibody

Chemotherapy Agent

DRUGCisplatin

Chemotherapy agent

DRUGCarboplatin

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

1. Age ≥18 years at the time of screening 2. Documented evidence of recurrent or metastatic SCCHN (oral cavity, oropharynx, hypopharynx, or larynx). 3. A fresh tumor biopsy for the purpose of screening or an available archival tumor sample. Tumor lesions used for fresh biopsies should not be the same lesions used as RECIST target lesions, unless there are no other lesions suitable for biopsy. 4. No prior systemic chemotherapy for recurrent or metastatic disease 5. World Health Organization (WHO)/Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 at enrollment 6. No prior exposure to immune-mediated therapy,

Exclusion criteria

1. Histologically or cytologically confirmed head and neck cancer of any other primary anatomic location in the head and neck not specified in the inclusion criteria including patients with SCCHN of unknown primary or non-squamous histologies (eg, nasopharynx or salivary gland) 2. Tumor progression or recurrence within 6 months of last dose of platinum therapy in the primary treatment setting 3. Receipt of any radiotherapy or hormonal therapy for cancer treatment within 30 days prior to first dose of study treatment 4. Active or prior documented autoimmune or inflammatory disorders (including inflammatory bowel disease \[eg, colitis, Crohn's disease\], diverticulitis

Design outcomes

Primary

MeasureTime frameDescription
Overall Survival (OS) Status in the PD-L1 TC/IC High Subgroup - Durvalumab Versus Standard of Care (SOC)From date of randomization until time of final analysis, an average of approximately 4 yearsNumber of participants with Overall Survival (OS)
Overall Survival (OS) Median Duration in the PD-L1 TC/IC High SubgroupFrom date of randomization until time of final analysis, an average of approximately 4 yearsTime from the date of randomization until death due to any cause (i.e., date of death or censoring - date of randomization + 1)

Secondary

MeasureTime frameDescription
Progression Free Survival (PFS) in the PD-L1 TC/IC High SubgroupTumor assessments (per RECIST 1.1) every 6 weeks for the first 24 weeks relative to the date of randomization and then every 8 weeks thereafter, up to approximately 4 yearsTime from the date of randomization until the date of objective disease progression or death (by any cause in the absence of progression). Progression is defined using Response Evaluation Criteria in Solid Tumours criteria (RECIST v1.1), as ≥20% increase in the sum of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions
Objective Response Rate (ORR) in the PD-L1 TC/IC High SubgroupTumor assessments (per RECIST 1.1) every 6 weeks for the first 24 weeks relative to the date of randomization and then every 8 weeks thereafter, up to approximately 4 yearsNumber (%) of patients with at least 1 visit response of complete response (CR) or partial response (PR). Per Response Evaluation Criteria in Solid Tumours (RECIST v1.1) for target lesions (TL) and assessed by MRI or CT: CR: Disappearance of all TLs since baseline; PR: \>= 30% decrease in the sum of diameters of TLs; Overall Response (OR = CR + PR)
Duration of Response (DoR) in the PD-L1 TC/IC High SubgroupTumor assessments (per RECIST 1.1) every 6 weeks for the first 24 weeks relative to the date of randomization and then every 8 weeks thereafter, up to approximately 4 yearsTime from the date of first documented response until the first date of documented progression or death in the absence of disease progression
Overall Survival (OS) Status in the All-comers (Full Analysis Set)From date of randomization until time of final analysis, an average of approximately 4 yearsNumber of participants with Overall Survival (OS)
Overall Survival (OS) Status in the PD-L1 TC/IC High Subgroup - Durvalumab + Tremelimumab Versus Standard of Care (SOC)From date of randomization until time of final analysis, an average of approximately 4 yearsNumber of participants with Overall Survival (OS)
Percentage of Patients Alive at 12, 18 and 24 Months in the All-comers (Full Analysis Set)12, 18 and 24 months after randomizationPercentage of patients alive
Progression Free Survival (PFS) in the All-comers (Full Analysis Set)Tumor assessments (per RECIST 1.1) every 6 weeks for the first 24 weeks relative to the date of randomization and then every 8 weeks thereafter, up to approximately 4 yearsTime from the date of randomization until the date of objective disease progression or death (by any cause in the absence of progression). Progression is defined using Response Evaluation Criteria in Solid Tumours criteria (RECIST v1.1), as ≥20% increase in the sum of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions
Objective Response Rate (ORR) in the All-comers (Full Analysis Set)Tumor assessments (per RECIST 1.1) every 6 weeks for the first 24 weeks relative to the date of randomization and then every 8 weeks thereafter, up to approximately 4 yearsNumber (%) of patients with at least 1 visit response of complete response (CR) or partial response (PR). Per Response Evaluation Criteria in Solid Tumours (RECIST v1.1) for target lesions (TL) and assessed by MRI or CT: CR: Disappearance of all TLs since baseline; PR: \>= 30% decrease in the sum of diameters of TLs; Overall Response (OR = CR + PR)
Duration of Response (DoR) in the All-comers (Full Analysis Set)Tumor assessments (per RECIST 1.1) every 6 weeks for the first 24 weeks relative to the date of randomization and then every 8 weeks thereafter, up to approximately 4 yearsTime from the date of first documented response until the first date of documented progression or death in the absence of disease progression
Overall Survival (OS) Median Duration in the All-comers (Full Analysis Set)From date of randomization until time of final analysis, an average of approximately 4 yearsTime from the date of randomization until death due to any cause (i.e., date of death or censoring - date of randomization + 1)
Percentage of Patients Alive at 12, 18 and 24 Months in the PD-L1 TC/IC High Subgroup12, 18 and 24 months after randomizationPercentage of patients alive

Countries

Austria, Belgium, Brazil, Canada, France, Germany, Greece, India, Italy, Japan, Philippines, Poland, Romania, Russia, Slovakia, South Korea, Spain, Taiwan, Thailand, Ukraine, United Kingdom, United States, Vietnam

Participant flow

Recruitment details

Patients meeting all the eligibility criteria were randomized 2:1:1 to durvalumab plus tremelimumab combination therapy, durvalumab monotherapy or standard of care.

Participants by arm

ArmCount
Durvalumab + Tremelimumab
tremelimumab (75 mg) via IV infusion every 4 weeks for a maximum of 4 doses, and durvalumab (1500 mg) via IV infusion every 4 weeks until disease progression
413
Durvalumab
durvalumab (1500 mg) via IV infusion every 4 weeks until disease progression
204
Standard of Care (SOC)
either cisplatin (at a dose of 100 mg/m2 of body surface area as an IV infusion) or carboplatin (at an area under the concentration curve of 5 mg/mL/min as an IV infusion) on Day 1 of up to six 3-week cycles, and an infusion of 5-fluorouracil (5FU) (at a dose of 1000 mg/m2/day on Days 1 through 4) every 3 weeks, along with 400 mg/m2 of cetuximab on Cycle 1 Day 1 and 250 mg/m2 weekly for up to 6 cycles and maintenance cetuximab at 250 mg/m2 administered via IV infusion weekly thereafter in patients who achieved stable disease (SD) or better upon completion of chemotherapy until disease progression, toxicity, or withdrawal of consent
206
Total823

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyDeath352174161
Overall StudyPatients alive or lost to follow-up at DCO532529
Overall StudyWithdrawal by Subject8516

Baseline characteristics

CharacteristicDurvalumab + TremelimumabDurvalumabStandard of Care (SOC)Total
Age, Continuous60.5 Years
STANDARD_DEVIATION 9.56
60.2 Years
STANDARD_DEVIATION 10.41
60.9 Years
STANDARD_DEVIATION 9.45
60.5 Years
STANDARD_DEVIATION 9.74
Race/Ethnicity, Customized
Asian
109 Participants54 Participants42 Participants205 Participants
Race/Ethnicity, Customized
Black or African American
5 Participants3 Participants2 Participants10 Participants
Race/Ethnicity, Customized
Missing
1 Participants0 Participants0 Participants1 Participants
Race/Ethnicity, Customized
Other
0 Participants2 Participants2 Participants4 Participants
Race/Ethnicity, Customized
White
298 Participants145 Participants160 Participants603 Participants
Sex: Female, Male
Female
73 Participants29 Participants32 Participants134 Participants
Sex: Female, Male
Male
340 Participants175 Participants174 Participants689 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
356 / 413176 / 204171 / 206
other
Total, other adverse events
317 / 408153 / 202182 / 196
serious
Total, serious adverse events
168 / 40878 / 20294 / 196

Outcome results

Primary

Overall Survival (OS) Median Duration in the PD-L1 TC/IC High Subgroup

Time from the date of randomization until death due to any cause (i.e., date of death or censoring - date of randomization + 1)

Time frame: From date of randomization until time of final analysis, an average of approximately 4 years

Population: PD-L1 TC/IC subgroup

ArmMeasureValue (MEDIAN)
Durvalumab + TremelimumabOverall Survival (OS) Median Duration in the PD-L1 TC/IC High Subgroup11.2 Months
DurvalumabOverall Survival (OS) Median Duration in the PD-L1 TC/IC High Subgroup10.9 Months
Standard of Care (SOC)Overall Survival (OS) Median Duration in the PD-L1 TC/IC High Subgroup10.9 Months
Primary

Overall Survival (OS) Status in the PD-L1 TC/IC High Subgroup - Durvalumab Versus Standard of Care (SOC)

Number of participants with Overall Survival (OS)

Time frame: From date of randomization until time of final analysis, an average of approximately 4 years

Population: PD-L1 TC/IC subgroup

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Durvalumab + TremelimumabOverall Survival (OS) Status in the PD-L1 TC/IC High Subgroup - Durvalumab Versus Standard of Care (SOC)Voluntary Discontinuation by subject1 Participants
Durvalumab + TremelimumabOverall Survival (OS) Status in the PD-L1 TC/IC High Subgroup - Durvalumab Versus Standard of Care (SOC)Death162 Participants
Durvalumab + TremelimumabOverall Survival (OS) Status in the PD-L1 TC/IC High Subgroup - Durvalumab Versus Standard of Care (SOC)Alive or lost to follow up27 Participants
DurvalumabOverall Survival (OS) Status in the PD-L1 TC/IC High Subgroup - Durvalumab Versus Standard of Care (SOC)Voluntary Discontinuation by subject1 Participants
DurvalumabOverall Survival (OS) Status in the PD-L1 TC/IC High Subgroup - Durvalumab Versus Standard of Care (SOC)Death84 Participants
DurvalumabOverall Survival (OS) Status in the PD-L1 TC/IC High Subgroup - Durvalumab Versus Standard of Care (SOC)Alive or lost to follow up14 Participants
Standard of Care (SOC)Overall Survival (OS) Status in the PD-L1 TC/IC High Subgroup - Durvalumab Versus Standard of Care (SOC)Death77 Participants
Standard of Care (SOC)Overall Survival (OS) Status in the PD-L1 TC/IC High Subgroup - Durvalumab Versus Standard of Care (SOC)Alive or lost to follow up14 Participants
Standard of Care (SOC)Overall Survival (OS) Status in the PD-L1 TC/IC High Subgroup - Durvalumab Versus Standard of Care (SOC)Voluntary Discontinuation by subject3 Participants
Comparison: Statistical analysis of number of deathsp-value: 0.78795% CI: [0.69, 1.32]Log Rank
Secondary

Duration of Response (DoR) in the All-comers (Full Analysis Set)

Time from the date of first documented response until the first date of documented progression or death in the absence of disease progression

Time frame: Tumor assessments (per RECIST 1.1) every 6 weeks for the first 24 weeks relative to the date of randomization and then every 8 weeks thereafter, up to approximately 4 years

Population: All-comers (Full analysis set)

ArmMeasureValue (MEDIAN)
Durvalumab + TremelimumabDuration of Response (DoR) in the All-comers (Full Analysis Set)9.2 Months
DurvalumabDuration of Response (DoR) in the All-comers (Full Analysis Set)11.9 Months
Standard of Care (SOC)Duration of Response (DoR) in the All-comers (Full Analysis Set)4.2 Months
Secondary

Duration of Response (DoR) in the PD-L1 TC/IC High Subgroup

Time from the date of first documented response until the first date of documented progression or death in the absence of disease progression

Time frame: Tumor assessments (per RECIST 1.1) every 6 weeks for the first 24 weeks relative to the date of randomization and then every 8 weeks thereafter, up to approximately 4 years

Population: PD-L1 TC/IC subgroup

ArmMeasureValue (MEDIAN)
Durvalumab + TremelimumabDuration of Response (DoR) in the PD-L1 TC/IC High Subgroup6.5 Months
DurvalumabDuration of Response (DoR) in the PD-L1 TC/IC High Subgroup12.3 Months
Standard of Care (SOC)Duration of Response (DoR) in the PD-L1 TC/IC High Subgroup4.2 Months
Secondary

Objective Response Rate (ORR) in the All-comers (Full Analysis Set)

Number (%) of patients with at least 1 visit response of complete response (CR) or partial response (PR). Per Response Evaluation Criteria in Solid Tumours (RECIST v1.1) for target lesions (TL) and assessed by MRI or CT: CR: Disappearance of all TLs since baseline; PR: \>= 30% decrease in the sum of diameters of TLs; Overall Response (OR = CR + PR)

Time frame: Tumor assessments (per RECIST 1.1) every 6 weeks for the first 24 weeks relative to the date of randomization and then every 8 weeks thereafter, up to approximately 4 years

Population: All-comers (Full analysis set)

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Durvalumab + TremelimumabObjective Response Rate (ORR) in the All-comers (Full Analysis Set)Response90 Participants
Durvalumab + TremelimumabObjective Response Rate (ORR) in the All-comers (Full Analysis Set)No response323 Participants
DurvalumabObjective Response Rate (ORR) in the All-comers (Full Analysis Set)Response35 Participants
DurvalumabObjective Response Rate (ORR) in the All-comers (Full Analysis Set)No response169 Participants
Standard of Care (SOC)Objective Response Rate (ORR) in the All-comers (Full Analysis Set)Response101 Participants
Standard of Care (SOC)Objective Response Rate (ORR) in the All-comers (Full Analysis Set)No response105 Participants
p-value: <0.00195% CI: [0.13, 0.33]Regression, Logistic
p-value: <0.00195% CI: [0.2, 0.41]Regression, Logistic
Secondary

Objective Response Rate (ORR) in the PD-L1 TC/IC High Subgroup

Number (%) of patients with at least 1 visit response of complete response (CR) or partial response (PR). Per Response Evaluation Criteria in Solid Tumours (RECIST v1.1) for target lesions (TL) and assessed by MRI or CT: CR: Disappearance of all TLs since baseline; PR: \>= 30% decrease in the sum of diameters of TLs; Overall Response (OR = CR + PR)

Time frame: Tumor assessments (per RECIST 1.1) every 6 weeks for the first 24 weeks relative to the date of randomization and then every 8 weeks thereafter, up to approximately 4 years

Population: PD-L1 TC/IC subgroup

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Durvalumab + TremelimumabObjective Response Rate (ORR) in the PD-L1 TC/IC High SubgroupResponse48 Participants
Durvalumab + TremelimumabObjective Response Rate (ORR) in the PD-L1 TC/IC High SubgroupNo response142 Participants
DurvalumabObjective Response Rate (ORR) in the PD-L1 TC/IC High SubgroupResponse16 Participants
DurvalumabObjective Response Rate (ORR) in the PD-L1 TC/IC High SubgroupNo response83 Participants
Standard of Care (SOC)Objective Response Rate (ORR) in the PD-L1 TC/IC High SubgroupResponse47 Participants
Standard of Care (SOC)Objective Response Rate (ORR) in the PD-L1 TC/IC High SubgroupNo response47 Participants
Comparison: Statistical analysis of number with a responsep-value: <0.00195% CI: [0.1, 0.37]Regression, Logistic
Comparison: Statistical analysis of number with a responsep-value: <0.00195% CI: [0.2, 0.57]Regression, Logistic
Secondary

Overall Survival (OS) Median Duration in the All-comers (Full Analysis Set)

Time from the date of randomization until death due to any cause (i.e., date of death or censoring - date of randomization + 1)

Time frame: From date of randomization until time of final analysis, an average of approximately 4 years

Population: All-comers (Full analysis set)

ArmMeasureValue (MEDIAN)
Durvalumab + TremelimumabOverall Survival (OS) Median Duration in the All-comers (Full Analysis Set)10.7 Months
DurvalumabOverall Survival (OS) Median Duration in the All-comers (Full Analysis Set)9.9 Months
Standard of Care (SOC)Overall Survival (OS) Median Duration in the All-comers (Full Analysis Set)10.3 Months
Secondary

Overall Survival (OS) Status in the All-comers (Full Analysis Set)

Number of participants with Overall Survival (OS)

Time frame: From date of randomization until time of final analysis, an average of approximately 4 years

Population: All-comers (Full analysis set)

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Durvalumab + TremelimumabOverall Survival (OS) Status in the All-comers (Full Analysis Set)Voluntary Discontinuation by subject4 Participants
Durvalumab + TremelimumabOverall Survival (OS) Status in the All-comers (Full Analysis Set)Death356 Participants
Durvalumab + TremelimumabOverall Survival (OS) Status in the All-comers (Full Analysis Set)Alive or lost to follow up53 Participants
DurvalumabOverall Survival (OS) Status in the All-comers (Full Analysis Set)Voluntary Discontinuation by subject3 Participants
DurvalumabOverall Survival (OS) Status in the All-comers (Full Analysis Set)Death176 Participants
DurvalumabOverall Survival (OS) Status in the All-comers (Full Analysis Set)Alive or lost to follow up25 Participants
Standard of Care (SOC)Overall Survival (OS) Status in the All-comers (Full Analysis Set)Death171 Participants
Standard of Care (SOC)Overall Survival (OS) Status in the All-comers (Full Analysis Set)Alive or lost to follow up29 Participants
Standard of Care (SOC)Overall Survival (OS) Status in the All-comers (Full Analysis Set)Voluntary Discontinuation by subject6 Participants
Comparison: Statistical analysis of number of deathsp-value: 0.81195% CI: [0.83, 1.27]Log Rank
Comparison: Statistical analysis of number of deathsp-value: 0.62495% CI: [0.87, 1.25]Log Rank
Secondary

Overall Survival (OS) Status in the PD-L1 TC/IC High Subgroup - Durvalumab + Tremelimumab Versus Standard of Care (SOC)

Number of participants with Overall Survival (OS)

Time frame: From date of randomization until time of final analysis, an average of approximately 4 years

Population: PD-L1 TC/IC subgroup

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Durvalumab + TremelimumabOverall Survival (OS) Status in the PD-L1 TC/IC High Subgroup - Durvalumab + Tremelimumab Versus Standard of Care (SOC)162 Participants
DurvalumabOverall Survival (OS) Status in the PD-L1 TC/IC High Subgroup - Durvalumab + Tremelimumab Versus Standard of Care (SOC)84 Participants
Standard of Care (SOC)Overall Survival (OS) Status in the PD-L1 TC/IC High Subgroup - Durvalumab + Tremelimumab Versus Standard of Care (SOC)77 Participants
p-value: 0.63495% CI: [0.8, 1.39]Log Rank
Secondary

Percentage of Patients Alive at 12, 18 and 24 Months in the All-comers (Full Analysis Set)

Percentage of patients alive

Time frame: 12, 18 and 24 months after randomization

Population: All-comers (Full analysis set)

ArmMeasureGroupValue (NUMBER)
Durvalumab + TremelimumabPercentage of Patients Alive at 12, 18 and 24 Months in the All-comers (Full Analysis Set)at 18 months30.7 % of participants
Durvalumab + TremelimumabPercentage of Patients Alive at 12, 18 and 24 Months in the All-comers (Full Analysis Set)at 12 months46.5 % of participants
Durvalumab + TremelimumabPercentage of Patients Alive at 12, 18 and 24 Months in the All-comers (Full Analysis Set)at 24 months22.9 % of participants
DurvalumabPercentage of Patients Alive at 12, 18 and 24 Months in the All-comers (Full Analysis Set)at 18 months31.2 % of participants
DurvalumabPercentage of Patients Alive at 12, 18 and 24 Months in the All-comers (Full Analysis Set)at 12 months42.8 % of participants
DurvalumabPercentage of Patients Alive at 12, 18 and 24 Months in the All-comers (Full Analysis Set)at 24 months24.7 % of participants
Standard of Care (SOC)Percentage of Patients Alive at 12, 18 and 24 Months in the All-comers (Full Analysis Set)at 12 months43.8 % of participants
Standard of Care (SOC)Percentage of Patients Alive at 12, 18 and 24 Months in the All-comers (Full Analysis Set)at 24 months23.2 % of participants
Standard of Care (SOC)Percentage of Patients Alive at 12, 18 and 24 Months in the All-comers (Full Analysis Set)at 18 months29.7 % of participants
Secondary

Percentage of Patients Alive at 12, 18 and 24 Months in the PD-L1 TC/IC High Subgroup

Percentage of patients alive

Time frame: 12, 18 and 24 months after randomization

Population: PD-L1 TC/IC subgroup

ArmMeasureGroupValue (NUMBER)
Durvalumab + TremelimumabPercentage of Patients Alive at 12, 18 and 24 Months in the PD-L1 TC/IC High Subgroupat 18 months31.8 % of participants
Durvalumab + TremelimumabPercentage of Patients Alive at 12, 18 and 24 Months in the PD-L1 TC/IC High Subgroupat 12 months49.3 % of participants
Durvalumab + TremelimumabPercentage of Patients Alive at 12, 18 and 24 Months in the PD-L1 TC/IC High Subgroupat 24 months23.9 % of participants
DurvalumabPercentage of Patients Alive at 12, 18 and 24 Months in the PD-L1 TC/IC High Subgroupat 18 months34.7 % of participants
DurvalumabPercentage of Patients Alive at 12, 18 and 24 Months in the PD-L1 TC/IC High Subgroupat 12 months48.0 % of participants
DurvalumabPercentage of Patients Alive at 12, 18 and 24 Months in the PD-L1 TC/IC High Subgroupat 24 months27.6 % of participants
Standard of Care (SOC)Percentage of Patients Alive at 12, 18 and 24 Months in the PD-L1 TC/IC High Subgroupat 12 months44.0 % of participants
Standard of Care (SOC)Percentage of Patients Alive at 12, 18 and 24 Months in the PD-L1 TC/IC High Subgroupat 24 months26.4 % of participants
Standard of Care (SOC)Percentage of Patients Alive at 12, 18 and 24 Months in the PD-L1 TC/IC High Subgroupat 18 months30.8 % of participants
Secondary

Progression Free Survival (PFS) in the All-comers (Full Analysis Set)

Time from the date of randomization until the date of objective disease progression or death (by any cause in the absence of progression). Progression is defined using Response Evaluation Criteria in Solid Tumours criteria (RECIST v1.1), as ≥20% increase in the sum of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions

Time frame: Tumor assessments (per RECIST 1.1) every 6 weeks for the first 24 weeks relative to the date of randomization and then every 8 weeks thereafter, up to approximately 4 years

Population: All-comers (Full analysis set)

ArmMeasureValue (MEDIAN)
Durvalumab + TremelimumabProgression Free Survival (PFS) in the All-comers (Full Analysis Set)2.8 Months
DurvalumabProgression Free Survival (PFS) in the All-comers (Full Analysis Set)2.8 Months
Standard of Care (SOC)Progression Free Survival (PFS) in the All-comers (Full Analysis Set)5.4 Months
p-value: 0.00695% CI: [1.1, 1.68]Log Rank
p-value: 0.00895% CI: [1.06, 1.53]Log Rank
Secondary

Progression Free Survival (PFS) in the PD-L1 TC/IC High Subgroup

Time from the date of randomization until the date of objective disease progression or death (by any cause in the absence of progression). Progression is defined using Response Evaluation Criteria in Solid Tumours criteria (RECIST v1.1), as ≥20% increase in the sum of target lesions, or a measurable increase in a non-target lesion, or the appearance of new lesions

Time frame: Tumor assessments (per RECIST 1.1) every 6 weeks for the first 24 weeks relative to the date of randomization and then every 8 weeks thereafter, up to approximately 4 years

Population: PD-L1 TC/IC subgroup

ArmMeasureValue (MEDIAN)
Durvalumab + TremelimumabProgression Free Survival (PFS) in the PD-L1 TC/IC High Subgroup2.8 Months
DurvalumabProgression Free Survival (PFS) in the PD-L1 TC/IC High Subgroup2.8 Months
Standard of Care (SOC)Progression Free Survival (PFS) in the PD-L1 TC/IC High Subgroup5.3 Months
p-value: 0.28795% CI: [0.94, 1.8]Log Rank
p-value: 0.02895% CI: [0.99, 1.76]Log Rank

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