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Study to Evaluate the Efficacy and Safety of Pembrolizumab (MK-3475) in Combination With Axitinib Versus Sunitinib Monotherapy in Participants With Renal Cell Carcinoma (MK-3475-426/KEYNOTE-426)

A Phase III Randomized, Open-label Study to Evaluate Efficacy and Safety of Pembrolizumab (MK-3475) in Combination With Axitinib Versus Sunitinib Monotherapy as a First-line Treatment for Locally Advanced or Metastatic Renal Cell Carcinoma (mRCC) (KEYNOTE-426)

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02853331
Enrollment
861
Registered
2016-08-02
Start date
2016-09-16
Completion date
2025-12-26
Last updated
2026-02-02

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

Conditions

Renal Cell Carcinoma

Keywords

PD1, PD-1, PDL1, PD-L1, PDL2, PD-L2, VEGFR TKI

Brief summary

The purpose of this study is to evaluate the efficacy and safety of pembrolizumab (MK-3475) in combination with axitinib versus sunitinib monotherapy as a first-line treatment for participants with advanced/metastatic renal cell carcinoma (mRCC). The primary hypotheses of this study are: 1. The combination therapy of pembrolizumab plus axitinib is superior to sunitinib monotherapy with respect to Progression-Free Survival (PFS) as assessed by blinded independent central imaging review per Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST 1.1) 2. The combination therapy of pembrolizumab plus axitinib is superior to sunitinib monotherapy with respect to Overall Survival (OS).

Interventions

BIOLOGICALPembrolizumab

Intravenous infusion

DRUGAxitinib

Oral tablet

DRUGSunitinib

Oral capsule

Sponsors

Merck Sharp & Dohme LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Has histologically confirmed diagnosis of RCC with clear cell component with or without sarcomatoid features * Has locally advanced/metastatic disease (i.e., newly diagnosed Stage IV RCC per American Joint Committee on Cancer) or has recurrent disease * Has measurable disease per RECIST 1.1 as assessed by the investigator/site radiologist * Has received no prior systemic therapy for advanced RCC. * Has provided archival tumor tissue sample or newly obtained core or excisional biopsy of a tumor lesion not previously irradiated. * Has Karnofsky performance status (KPS) ≥ 70% as assessed within 10 days prior to randomization. * If receiving bone resorptive therapy (including but not limited to bisphosphonate or RANK-L inhibitor) must have therapy initiated at least 2 weeks prior to randomization. * Demonstrates adequate organ function. * Female participants of childbearing potential must be willing to use an adequate method of contraception for the course of the study through 120 days after the last dose of study drug. * Male participants of childbearing potential must agree to use an adequate method of contraception, starting with the first dose of study drug through 120 days after the last dose of study drug.

Exclusion criteria

* Is currently participating in or has participated in a study of an investigational agent or has used an investigational device within 4 weeks prior to randomization. * Has had major surgery within 4 weeks, received radiation therapy within 2 weeks prior to randomization, or has not recovered (i.e., ≤ Grade 1 or at baseline) from AEs due to prior treatment. * Has had prior treatment with any anti-programmed cell death (anti-PD-1), or programmed cell death ligand 1 (PD-L1), or PD-L2 agent or an antibody targeting any other immune-regulatory receptors or mechanisms. * Has received prior systemic anti-cancer therapy for RCC with vascular endothelial growth factor (VEGF)/VEGF receptors (VEGFR) or mechanistic target of rapamycin (mTOR) targeting agents. * Has a history of severe hypersensitivity reaction (e.g., generalized rash/erythema, hypotension, bronchospasm, angioedema or anaphylaxis) to axitinib or sunitinib. * Has a diagnosis of immunodeficiency OR is receiving a systemic steroid therapy exceeding physiologic corticosteroid dose or any other form of immunosuppressive therapy within 7 days prior to randomization, except in the case of central nervous system (CNS) metastases. * Has an active autoimmune disease requiring systemic treatment with in the past 2 years OR a documented history of clinically severe autoimmune disease. Note: Participants with vitiligo, Sjøgren's syndrome, Type 1 diabetes, resolved childhood asthma/atopy, hypothyroidism or adrenal or pituitary insufficiency who are stable on hormone replacement, are not excluded. * Has a known additional malignancy that has progressed or has required active treatment in the last 3 years. Note: Basal cell carcinoma of the skin, squamous cell carcinoma of the skin, superficial bladder cancer, or carcinoma in situ such as breast cancer in situ are acceptable if they have undergone potentially curative therapy. * Has known active CNS metastases and/or carcinomatous meningitis. * Has a history of (non-infectious) pneumonitis that required steroids or current pneumonitis. * Has an active infection requiring systemic therapy. * Has a known history of Human Immunodeficiency Virus (HIV). * Has known active Hepatitis B or Hepatitis C infection. * Has received a live virus vaccine within 30 days of randomization. * Has a clinically significant gastrointestinal (GI) abnormality including: * Malabsorption, total gastric resection * Or any condition that might affect the absorption of orally taken medication * Active GI bleeding, as evidenced by hematemesis, hematochezia or melena in the past 3 months without evidence of resolution documented by endoscopy or colonoscopy * Intraluminal metastatic lesion with suspected bleeding, inflammatory bowel disease, ulcerative colitis or other GI condition associated with increased risk of perforation * Has QT interval corrected for heart rate (QTc) ≥480 msec. * Has a history of any of the following cardiovascular conditions within 12 months of randomization: * Myocardial infarction * Unstable angina pectoris * Cardiac angioplasty or stenting * Coronary/peripheral artery bypass graft * Class III or IV congestive heart failure per New York Heart Association * Cerebrovascular accident or transient ischemic attack * Has a history of deep vein thrombosis or pulmonary embolism within 6 months of screening. * Has poorly controlled hypertension defined as systolic blood pressure (SBP) ≥150 mm Hg and/or diastolic blood pressure (DBP) ≥90 mm Hg. * Has evidence of inadequate wound healing. * Has active bleeding disorder or other history of significant bleeding episodes within 30 days of randomization. * Has hemoptysis within 6 weeks prior to randomization. * Has current use (within 7 days of randomization) or anticipated need for treatment with drugs or foods that are known strong cytochrome P450 (CYP3A4/5) inhibitors. * Has current use (within 7 days of randomization) or anticipated need for treatment with drugs that are known strong CYP3A4/5 inducers, including but not limited to carbamazepine, phenobarbital, phenytoin, rifabutin, rifampin, and St. John's wort; or drugs that are known with proarrhythmic potential. * Has known psychiatric or substance abuse disorders that would interfere with cooperation with the requirements of the study. * Has had a prior solid organ transplant. * Is pregnant or breastfeeding, or expecting to conceive or father children within the projected duration of the study, starting with the screening visit through 120 days after the last dose of study drug.

Design outcomes

Primary

MeasureTime frameDescription
Progression-Free Survival (PFS) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by Blinded Independent Central Imaging ReviewThrough Database Cutoff Date of 24-Aug-2018 (up to approximately 22 months)PFS was defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurred first. Per RECIST 1.1, PD was defined as ≥20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions was also considered PD. The PFS per RECIST 1.1 was calculated using the product-limit (Kaplan-Meier) method for censored data. The PFS for participants is presented.
Overall Survival (OS)Through Database Cutoff Date of 24-Aug-2018 (up to approximately 22 months)OS was defined as the time from randomization to death due to any cause. Participants without documented death at the time of the interim analysis were censored at the date of the last follow up. The OS was calculated using the product-limit (Kaplan-Meier) method for censored data. The OS for participants is presented.

Secondary

MeasureTime frameDescription
Objective Response Rate (ORR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by Blinded Independent Central Imaging ReviewThrough Database Cutoff Date of 24-Aug-2018 (up to approximately 22 months)ORR was determined per RECIST 1.1 and was defined as the percentage of participants in the analysis population who had a Complete Response (CR: disappearance of all target lesions) or a Partial Response (PR: ≥30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters) per RECIST 1.1. The ORR was calculated using the Miettinen \& Nurminen method stratified by International Metastatic Renal Cell Carcinoma (RCC) Database Consortium (IMDC) risk group (favorable vs. intermediate vs. poor) and geographic region (North America vs. Western Europe vs. Rest of World). The percentage of participants who experienced a CR or PR is presented.
Disease Control Rate (DCR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by Blinded Independent Central Imaging ReviewThrough Database Cutoff Date of 24-Aug-2018 (up to approximately 22 months)DCR was defined as the percentage of participants who had a Complete Response (CR: Disappearance of all target lesions), Partial Response (PR: ≥30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters), or Stable Disease (SD) per RECIST 1.1 for ≥6 months. The DCR was calculated using the Miettinen \& Nurminen method stratified by International Metastatic Renal Cell Carcinoma (RCC) Database Consortium (IMDC) risk group (favorable vs. intermediate vs. poor) and geographic region (North America vs. Western Europe vs. Rest of World). The percentage of participants who experienced a CR, PR, or SD is presented.
Duration of Response (DOR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by Blinded Independent Central Imaging ReviewThrough Database Cutoff Date of 24-Aug-2018 (up to approximately 22 months)DOR was defined as the time from first documented evidence of a Complete Response (CR: disappearance of all target lesions) or Partial Response (PR: ≥30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters) per RECIST 1.1 until progressive disease (PD) or death due to any cause, whichever occurred first. PD was defined per RECIST 1.1 as ≥20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions was also considered PD. The DOR was calculated using the product-limit (Kaplan-Meier) method for censored data. The DOR for all participants who experienced a CR or PR is presented.
Number of Participants Who Experienced an Adverse Event (AE)Through Database Cutoff Date of 24-Aug-2018 (up to approximately 22 months)An AE was defined as any untoward medical occurrence in a participant administered a study treatment and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of a medicinal product or protocol-specified procedure, whether or not considered related to the study treatment or protocol-specified procedure. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a pre-existing condition that was temporally associated with the use of study treatment, was also an AE. The number of participants who experienced at least one AE is presented.
Number of Participants Who Discontinued Study Drug Due to an AEThrough Database Cutoff Date of 24-Aug-2018 (up to approximately 22 months)An AE was defined as any untoward medical occurrence in a participant administered a study treatment and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of a medicinal product or protocol-specified procedure, whether or not considered related to the study treatment or protocol-specified procedure. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a pre-existing condition that was temporally associated with the use of study treatment, was also an AE. The number of participants who discontinued study treatment due to an AE is presented.
Progression Free Survival Rate (PFS Rate) at Month 12 in All ParticipantsMonth 12The PFS rate was determined in all participants at Month 12. PFS was defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurred first. Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1), PD was defined as ≥20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions was also considered PD. The date of PD was approximated by the date of the first assessment at which PD was documented per RECIST 1.1 by Blinded Independent Central Review (BICR). Death was always considered as confirmed PD. Participants who did not experience PFS were censored at the last disease assessment. The PFS rate at Month 12 is presented.
Progression Free Survival Rate (PFS Rate) at Month 18 in All ParticipantsMonth 18The PFS rate was determined in all participants at Month 18. PFS was defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurred first. Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1), PD was defined as ≥20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions was also considered PD. The date of PD was approximated by the date of the first assessment at which PD was documented per RECIST 1.1 by Blinded Independent Central Review (BICR). Death was always considered as confirmed PD. Participants who did not experience PFS were censored at the last disease assessment. The PFS rate at Month 18 is presented.
Progression Free Survival Rate (PFS Rate) at Month 24 in All ParticipantsMonth 24The PFS rate was determined in all participants at Month 24. PFS was defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurred first. Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1), PD was defined as ≥20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions was also considered PD. The date of PD was approximated by the date of the first assessment at which PD was documented per RECIST 1.1 by Blinded Independent Central Review (BICR). Death was always considered as confirmed PD. Participants who did not experience PFS were censored at the last disease assessment.
Overall Survival (OS) Rate at Month 12 in All ParticipantsMonth 12The OS rate was determined for all participants at Month 12 and was defined as the time from randomization to death due to any cause. Participants were censored at the date of their last assessment. The OS rate at Month 12 is presented.
Overall Survival (OS) Rate at Month 18 in All ParticipantsMonth 18The OS rate was determined for all participants at Month 18 and was defined as the time from randomization to death due to any cause. Participants were censored at the date of their last assessment. The OS rate at Month 18 is presented.
Overall Survival (OS) Rate at Month 24 in All ParticipantsMonth 24The OS rate was determined for all participants at Month 24 and was defined as the time from randomization to death due to any cause. Participants were censored at the date of their last assessment.
Time to True Deterioration (TTD) of the Functional Assessment of Cancer Therapy Kidney Symptom Index Disease-Related Symptoms (FKSI-DRS) ScoreThrough Database Cutoff Date of 24-Aug-2018 (up to approximately 22 months)TTD was defined as time (in months) from the first dose of study treatment to the date of deterioration of FKSI-DRS Score. The FKSI-DRS was a questionnaire that asked the participant to rate 9 kidney cancer-related symptoms: lack of energy, fatigue, weight loss, pain, bone pain, shortness of breath, cough, fever, or blood in the urine. Each item was scored on a 5-point scale (0=not at all to 4=very much). FKSI-DRS total score ranged from 0 (most severe symptoms) to 36 (no symptoms) with a higher score indicating a better outcome. Deterioration was defined as a 3-point decrease (i.e. lower score) in symptom score and the time to true deterioration was the time to first onset of 3 or more decreases from baseline with confirmation under right-censoring rule (the last observation). The time to true deterioration as measured in months is presented.
Least Squares (LS) Mean Change From Baseline to Week 54 in the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-Core 30 (EORTC QLQ-C30) Global Health Status (GHS) Scale ScoreBaseline (prior to first dose of study treatment in Cycle 1 [cycle length = 21 days]) and Week 54EORTC QLQ-C30 is a questionnaire that rates the overall quality of life in cancer participants. The first 28 questions use a 4-point scale (1=not at all to 4=very much) for evaluating function (physical, role, social, cognitive, emotional), symptoms (diarrhea, fatigue, dyspnea, appetite loss, insomnia, nausea/vomiting, constipation, and pain) and financial difficulties. The last 2 questions use a 7-point scale (1=very poor to 7=excellent) to evaluate overall health and quality of life. Global scores are converted to a score of 0 to 100, with a higher score indicating improved health status.

Contacts

STUDY_DIRECTORMedical Director

Merck Sharp & Dohme LLC

Participant flow

Pre-assignment details

These interim results are based on a database cutoff date of 24-Aug-2018, at which time 693 participants were ongoing in the study.

Participants by arm

ArmCount
Pembrolizumab + Axitinib
Participants received pembrolizumab 200 mg intravenously every 3 weeks PLUS axitinib 5 mg orally twice daily.
432
Sunitinib
Participants received sunitinib 50 mg orally once daily for 4 weeks and then were off treatment for 2 weeks.
429
Total861

Baseline characteristics

CharacteristicPembrolizumab + AxitinibSunitinibTotal
Age, Continuous61.2 Years
STANDARD_DEVIATION 10
60.8 Years
STANDARD_DEVIATION 10.2
61.0 Years
STANDARD_DEVIATION 10.1
Ethnicity (NIH/OMB)
Hispanic or Latino
19 Participants18 Participants37 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
377 Participants387 Participants764 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
36 Participants24 Participants60 Participants
Geographic Region
North America
104 Participants103 Participants207 Participants
Geographic Region
Rest of World
222 Participants222 Participants444 Participants
Geographic Region
Western Europe
106 Participants104 Participants210 Participants
International Metastatic Renal Cell Carcinoma Database Consortium (IMDC) Risk Group
Favorable
138 Participants131 Participants269 Participants
International Metastatic Renal Cell Carcinoma Database Consortium (IMDC) Risk Group
Intermediate
238 Participants246 Participants484 Participants
International Metastatic Renal Cell Carcinoma Database Consortium (IMDC) Risk Group
Poor
56 Participants52 Participants108 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
66 Participants71 Participants137 Participants
Race (NIH/OMB)
Black or African American
10 Participants8 Participants18 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
13 Participants9 Participants22 Participants
Race (NIH/OMB)
White
343 Participants341 Participants684 Participants
Sex: Female, Male
Female
124 Participants109 Participants233 Participants
Sex: Female, Male
Male
308 Participants320 Participants628 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
59 / 43297 / 429
other
Total, other adverse events
417 / 429415 / 425
serious
Total, serious adverse events
173 / 429133 / 425

Outcome results

Primary

Overall Survival (OS)

OS was defined as the time from randomization to death due to any cause. Participants without documented death at the time of the interim analysis were censored at the date of the last follow up. The OS was calculated using the product-limit (Kaplan-Meier) method for censored data. The OS for participants is presented.

Time frame: Through Database Cutoff Date of 24-Aug-2018 (up to approximately 22 months)

Population: The analysis population consisted of all randomized participants.

ArmMeasureValue (MEDIAN)
Pembrolizumab + AxitinibOverall Survival (OS)NA Months
SunitinibOverall Survival (OS)NA Months
p-value: 0.0000595% CI: [0.38, 0.74]Log Rank
Primary

Progression-Free Survival (PFS) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by Blinded Independent Central Imaging Review

PFS was defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurred first. Per RECIST 1.1, PD was defined as ≥20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions was also considered PD. The PFS per RECIST 1.1 was calculated using the product-limit (Kaplan-Meier) method for censored data. The PFS for participants is presented.

Time frame: Through Database Cutoff Date of 24-Aug-2018 (up to approximately 22 months)

Population: The analysis population consisted of all randomized participants.

ArmMeasureValue (MEDIAN)
Pembrolizumab + AxitinibProgression-Free Survival (PFS) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by Blinded Independent Central Imaging Review15.1 Months
SunitinibProgression-Free Survival (PFS) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by Blinded Independent Central Imaging Review11.0 Months
p-value: 0.0001295% CI: [0.56, 0.84]Log Rank
Secondary

Disease Control Rate (DCR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by Blinded Independent Central Imaging Review

DCR was defined as the percentage of participants who had a Complete Response (CR: Disappearance of all target lesions), Partial Response (PR: ≥30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters), or Stable Disease (SD) per RECIST 1.1 for ≥6 months. The DCR was calculated using the Miettinen & Nurminen method stratified by International Metastatic Renal Cell Carcinoma (RCC) Database Consortium (IMDC) risk group (favorable vs. intermediate vs. poor) and geographic region (North America vs. Western Europe vs. Rest of World). The percentage of participants who experienced a CR, PR, or SD is presented.

Time frame: Through Database Cutoff Date of 24-Aug-2018 (up to approximately 22 months)

Population: The analysis population consisted of all randomized participants who experienced a PR, CR or SD for ≥6 months.

ArmMeasureValue (NUMBER)
Pembrolizumab + AxitinibDisease Control Rate (DCR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by Blinded Independent Central Imaging Review71.5 Percentage of participants
SunitinibDisease Control Rate (DCR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by Blinded Independent Central Imaging Review60.6 Percentage of participants
95% CI: [4.8, 17]
Secondary

Duration of Response (DOR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by Blinded Independent Central Imaging Review

DOR was defined as the time from first documented evidence of a Complete Response (CR: disappearance of all target lesions) or Partial Response (PR: ≥30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters) per RECIST 1.1 until progressive disease (PD) or death due to any cause, whichever occurred first. PD was defined per RECIST 1.1 as ≥20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions was also considered PD. The DOR was calculated using the product-limit (Kaplan-Meier) method for censored data. The DOR for all participants who experienced a CR or PR is presented.

Time frame: Through Database Cutoff Date of 24-Aug-2018 (up to approximately 22 months)

Population: The analysis population consisted of all randomized participants who experienced a CR or PR.

ArmMeasureValue (MEDIAN)
Pembrolizumab + AxitinibDuration of Response (DOR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by Blinded Independent Central Imaging ReviewNA Months
SunitinibDuration of Response (DOR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by Blinded Independent Central Imaging Review15.2 Months
Secondary

Least Squares (LS) Mean Change From Baseline to Week 54 in the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-Core 30 (EORTC QLQ-C30) Global Health Status (GHS) Scale Score

EORTC QLQ-C30 is a questionnaire that rates the overall quality of life in cancer participants. The first 28 questions use a 4-point scale (1=not at all to 4=very much) for evaluating function (physical, role, social, cognitive, emotional), symptoms (diarrhea, fatigue, dyspnea, appetite loss, insomnia, nausea/vomiting, constipation, and pain) and financial difficulties. The last 2 questions use a 7-point scale (1=very poor to 7=excellent) to evaluate overall health and quality of life. Global scores are converted to a score of 0 to 100, with a higher score indicating improved health status.

Time frame: Baseline (prior to first dose of study treatment in Cycle 1 [cycle length = 21 days]) and Week 54

Secondary

Number of Participants Who Discontinued Study Drug Due to an AE

An AE was defined as any untoward medical occurrence in a participant administered a study treatment and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of a medicinal product or protocol-specified procedure, whether or not considered related to the study treatment or protocol-specified procedure. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a pre-existing condition that was temporally associated with the use of study treatment, was also an AE. The number of participants who discontinued study treatment due to an AE is presented.

Time frame: Through Database Cutoff Date of 24-Aug-2018 (up to approximately 22 months)

Population: The analysis population consisted of all participants who received ≥1 dose of study treatment.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Pembrolizumab + AxitinibNumber of Participants Who Discontinued Study Drug Due to an AE131 Participants
SunitinibNumber of Participants Who Discontinued Study Drug Due to an AE59 Participants
Secondary

Number of Participants Who Experienced an Adverse Event (AE)

An AE was defined as any untoward medical occurrence in a participant administered a study treatment and which does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of a medicinal product or protocol-specified procedure, whether or not considered related to the study treatment or protocol-specified procedure. Any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a pre-existing condition that was temporally associated with the use of study treatment, was also an AE. The number of participants who experienced at least one AE is presented.

Time frame: Through Database Cutoff Date of 24-Aug-2018 (up to approximately 22 months)

Population: The analysis population consisted of all participants who received ≥1 dose of study treatment.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Pembrolizumab + AxitinibNumber of Participants Who Experienced an Adverse Event (AE)422 Participants
SunitinibNumber of Participants Who Experienced an Adverse Event (AE)423 Participants
Secondary

Objective Response Rate (ORR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by Blinded Independent Central Imaging Review

ORR was determined per RECIST 1.1 and was defined as the percentage of participants in the analysis population who had a Complete Response (CR: disappearance of all target lesions) or a Partial Response (PR: ≥30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters) per RECIST 1.1. The ORR was calculated using the Miettinen & Nurminen method stratified by International Metastatic Renal Cell Carcinoma (RCC) Database Consortium (IMDC) risk group (favorable vs. intermediate vs. poor) and geographic region (North America vs. Western Europe vs. Rest of World). The percentage of participants who experienced a CR or PR is presented.

Time frame: Through Database Cutoff Date of 24-Aug-2018 (up to approximately 22 months)

Population: The analysis population consisted of all randomized participants.

ArmMeasureValue (NUMBER)
Pembrolizumab + AxitinibObjective Response Rate (ORR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by Blinded Independent Central Imaging Review59.3 Percentage of participants
SunitinibObjective Response Rate (ORR) Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) as Assessed by Blinded Independent Central Imaging Review35.7 Percentage of participants
p-value: <0.000195% CI: [17.2, 29.9]Miettinen & Nurminen method
Secondary

Overall Survival (OS) Rate at Month 12 in All Participants

The OS rate was determined for all participants at Month 12 and was defined as the time from randomization to death due to any cause. Participants were censored at the date of their last assessment. The OS rate at Month 12 is presented.

Time frame: Month 12

Population: The analysis population consisted of all randomized participants.

ArmMeasureValue (NUMBER)
Pembrolizumab + AxitinibOverall Survival (OS) Rate at Month 12 in All Participants89.9 Percentage of participants
SunitinibOverall Survival (OS) Rate at Month 12 in All Participants78.3 Percentage of participants
Secondary

Overall Survival (OS) Rate at Month 18 in All Participants

The OS rate was determined for all participants at Month 18 and was defined as the time from randomization to death due to any cause. Participants were censored at the date of their last assessment. The OS rate at Month 18 is presented.

Time frame: Month 18

Population: The analysis population consisted of all randomized participants.

ArmMeasureValue (NUMBER)
Pembrolizumab + AxitinibOverall Survival (OS) Rate at Month 18 in All Participants82.3 Percentage of participants
SunitinibOverall Survival (OS) Rate at Month 18 in All Participants72.1 Percentage of participants
Secondary

Overall Survival (OS) Rate at Month 24 in All Participants

The OS rate was determined for all participants at Month 24 and was defined as the time from randomization to death due to any cause. Participants were censored at the date of their last assessment.

Time frame: Month 24

Secondary

Progression Free Survival Rate (PFS Rate) at Month 12 in All Participants

The PFS rate was determined in all participants at Month 12. PFS was defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurred first. Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1), PD was defined as ≥20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions was also considered PD. The date of PD was approximated by the date of the first assessment at which PD was documented per RECIST 1.1 by Blinded Independent Central Review (BICR). Death was always considered as confirmed PD. Participants who did not experience PFS were censored at the last disease assessment. The PFS rate at Month 12 is presented.

Time frame: Month 12

Population: The analysis population consisted of all randomized participants.

ArmMeasureValue (NUMBER)
Pembrolizumab + AxitinibProgression Free Survival Rate (PFS Rate) at Month 12 in All Participants59.6 Percentage of participants
SunitinibProgression Free Survival Rate (PFS Rate) at Month 12 in All Participants46.1 Percentage of participants
Secondary

Progression Free Survival Rate (PFS Rate) at Month 18 in All Participants

The PFS rate was determined in all participants at Month 18. PFS was defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurred first. Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1), PD was defined as ≥20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions was also considered PD. The date of PD was approximated by the date of the first assessment at which PD was documented per RECIST 1.1 by Blinded Independent Central Review (BICR). Death was always considered as confirmed PD. Participants who did not experience PFS were censored at the last disease assessment. The PFS rate at Month 18 is presented.

Time frame: Month 18

Population: The analysis population consisted of all randomized participants.

ArmMeasureValue (NUMBER)
Pembrolizumab + AxitinibProgression Free Survival Rate (PFS Rate) at Month 18 in All Participants41.1 Percentage of participants
SunitinibProgression Free Survival Rate (PFS Rate) at Month 18 in All Participants32.8 Percentage of participants
Secondary

Progression Free Survival Rate (PFS Rate) at Month 24 in All Participants

The PFS rate was determined in all participants at Month 24. PFS was defined as the time from randomization to the first documented progressive disease (PD) or death due to any cause, whichever occurred first. Per Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1), PD was defined as ≥20% increase in the sum of diameters of target lesions, taking as reference the smallest sum on study. In addition to the relative increase of 20%, the sum must also demonstrate an absolute increase of ≥5 mm. The appearance of one or more new lesions was also considered PD. The date of PD was approximated by the date of the first assessment at which PD was documented per RECIST 1.1 by Blinded Independent Central Review (BICR). Death was always considered as confirmed PD. Participants who did not experience PFS were censored at the last disease assessment.

Time frame: Month 24

Secondary

Time to True Deterioration (TTD) of the Functional Assessment of Cancer Therapy Kidney Symptom Index Disease-Related Symptoms (FKSI-DRS) Score

TTD was defined as time (in months) from the first dose of study treatment to the date of deterioration of FKSI-DRS Score. The FKSI-DRS was a questionnaire that asked the participant to rate 9 kidney cancer-related symptoms: lack of energy, fatigue, weight loss, pain, bone pain, shortness of breath, cough, fever, or blood in the urine. Each item was scored on a 5-point scale (0=not at all to 4=very much). FKSI-DRS total score ranged from 0 (most severe symptoms) to 36 (no symptoms) with a higher score indicating a better outcome. Deterioration was defined as a 3-point decrease (i.e. lower score) in symptom score and the time to true deterioration was the time to first onset of 3 or more decreases from baseline with confirmation under right-censoring rule (the last observation). The time to true deterioration as measured in months is presented.

Time frame: Through Database Cutoff Date of 24-Aug-2018 (up to approximately 22 months)

Population: All randomized participants who received at least 1 dose of study medication and completed at least 1 questionnaire assessment.

ArmMeasureValue (MEDIAN)
Pembrolizumab + AxitinibTime to True Deterioration (TTD) of the Functional Assessment of Cancer Therapy Kidney Symptom Index Disease-Related Symptoms (FKSI-DRS) ScoreNA Months
SunitinibTime to True Deterioration (TTD) of the Functional Assessment of Cancer Therapy Kidney Symptom Index Disease-Related Symptoms (FKSI-DRS) ScoreNA Months
Post Hoc

Least Squares (LS) Mean Change From Baseline to Week 30 in the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-Core 30 (EORTC QLQ-C30) Global Health Status (GHS) Scale Score

EORTC QLQ-C30 is a cancer-specific instrument with 30 questions used to assess the overall quality of life (QOL) in cancer participants. The first 28 questions used a 4-point scale (1=not at all, 2=a little, 3=quite a bit, 4=very much) for evaluating 5 functional scales (physical, role, social, cognitive, emotional), 8 symptom scales/items (diarrhea, fatigue, dyspnea, appetite loss, insomnia, nausea and vomiting \[N/V\], constipation, and pain) and a single item (financial difficulties). The last 2 questions represented the participant's assessment of overall health and quality of life on a 7-point scale (1=very poor to 7=excellent). EORTC QLQ-C30 global scores were linearly transformed on a scale of 0 to 100; with a high score indicating improved health status. Negative change from baseline values indicated deterioration in health status or functioning and positive changes indicated improvement. The LS Mean change from baseline to Week 30 is presented.

Time frame: Baseline (prior to first dose of study treatment in Cycle 1 [cycle length = 21 days]) and Week 30

Population: All participants who received at least 1 dose of study medication and had non-missing questionnaire assessments at baseline and Week 30.

ArmMeasureValue (LEAST_SQUARES_MEAN)
Pembrolizumab + AxitinibLeast Squares (LS) Mean Change From Baseline to Week 30 in the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-Core 30 (EORTC QLQ-C30) Global Health Status (GHS) Scale Score-4.05 Score on a scale
SunitinibLeast Squares (LS) Mean Change From Baseline to Week 30 in the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire-Core 30 (EORTC QLQ-C30) Global Health Status (GHS) Scale Score-2.35 Score on a scale
Other Pre-specified

Mean Baseline EORTC Quality of Life Questionnaire-Core 30 (EORTC QLQ-C30) Score

EORTC QLQ-C30 is a questionnaire that rates the overall quality of life in cancer participants. The first 28 questions use a 4-point scale (1=not at all to 4=very much) for evaluating function (physical, role, social, cognitive, emotional), symptoms (diarrhea, fatigue, dyspnea, appetite loss, insomnia, nausea/vomiting, constipation, and pain) and financial difficulties. The last 2 questions use a 7-point scale (1=very poor to 7=excellent) to evaluate overall health and quality of life. Global scores are converted to a score of 0 to 100, with a higher score indicating improved health status. The mean baseline EORTC QLQ-C30 score is presented.

Time frame: Baseline (prior to first dose of study treatment in Cycle 1 [cycle length = 21 days])

Population: All participants with non-missing questionnaire assessments at baseline.

ArmMeasureValue (MEAN)Dispersion
Pembrolizumab + AxitinibMean Baseline EORTC Quality of Life Questionnaire-Core 30 (EORTC QLQ-C30) Score70.90 Score on a scaleStandard Deviation 21.037
SunitinibMean Baseline EORTC Quality of Life Questionnaire-Core 30 (EORTC QLQ-C30) Score72.07 Score on a scaleStandard Deviation 20.642

Source: ClinicalTrials.gov · Data processed: Mar 7, 2026