> Trialight public data. Index of pages: https://trialight.com/llms.txt > Web page: https://trialight.com/data/trial/a-study-of-belzutifan-mk-6482-plus-pembrolizumab-mk-3475-f9e2ee9a-1ecf-4dbb-ba7d-7872d292ab8b > Record changed: 2026-10-13 # A Study of Belzutifan (MK-6482) Plus Pembrolizumab (MK-3475) Versus Placebo Plus Pembrolizumab in Participants With Clear Cell Renal Cell Carcinoma Post Nephrectomy (MK-6482-022) NCT05239728 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) Phase Phase 3 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) Recruitment status Active, not recruiting Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) Participants 1,800 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) Lead sponsor Merck Sharp & Dohme LLC Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) Start date 2022-03-15 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) Number of sites 285 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) ## Title and summary **Summary** The purpose of this study is to assess the efficacy and safety of oral belzutifan (MK-6482) plus intravenous (IV) pembrolizumab (MK-3475) compared to placebo plus pembrolizumab, in the adjuvant treatment of Clear Cell Renal Cell Carcinoma (ccRCC) post nephrectomy. The primary study hypothesis is that belzutifan plus pembrolizumab is superior to placebo plus pembrolizumab with respect to disease-free survival (DFS). Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) **Short title** A Study of Belzutifan (MK-6482) Plus Pembrolizumab (MK-3475) Versus Placebo Plus Pembrolizumab in Participants With Clear Cell Renal Cell Carcinoma Post Nephrectomy (MK-6482-022) Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) **Official title** A Multicenter, Double-blind, Randomized Phase 3 Study to Compare the Efficacy and Safety of Belzutifan (MK-6482) Plus Pembrolizumab (MK-3475) Versus Placebo Plus Pembrolizumab in the Adjuvant Treatment of Clear Cell Renal Cell Carcinoma (ccRCC) Post Nephrectomy (MK-6482-022) Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) ## Status and phase **Registry reports results** No Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) **Listing at source** Listed Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) **Recruitment status** Active, not recruiting Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) **Phase** Phase 3 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) **Study type** Interventional Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) ## Dates **Completion date** 2029-09-28 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) **First posted** 2022-02-15 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) **Registry last updated** 2026-05-15 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) **Primary completion date** 2026-10-28 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) **Start date** 2022-03-15 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) ## Size and sites **Participants** 1,800 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) **Participant count basis** Estimated Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) **Planned participants** 1,800 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) **Protocol amendments** 2 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) **Number of sites** 285 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) ## Sponsor and oversight **Data monitoring committee** Yes Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) **Registry sponsor category** Industry Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) **Lead sponsor** Merck Sharp & Dohme LLC Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) **Source registry** ClinicalTrials.gov Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) ## Identifiers **Registry ID** NCT05239728 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) **ClinicalTrials.gov ID** NCT05239728 Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) **Registry record** Open registry record Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) ## Study design **Allocation** Randomised **Model** Parallel groups **Purpose** Treatment **Masking** Triple masking **Masked roles** Participants, Investigators, Outcome assessors Sources for study design Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) ## Outcomes ### Primary outcomes 1. Disease-Free Survival (DFS) Timeframe: Up to approximately 54 months DFS is defined as the time from randomization to the first documented local recurrence, or occurrence of distant kidney cancer metastasis(es) as assessed by investigator, or death due to any cause, whichever occurs first. The DFS for all participants will be presented. ### Secondary outcomes 1. Overall Survival (OS) Timeframe: Up to approximately 89 months OS is defined as the time from randomization to death due to any cause. 2. Number of Participants Who Experience at Least One Adverse Event (AE) Timeframe: Up to approximately 66 weeks An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a study intervention. The number of participants who experienced an AE will be reported. 3. Number of Participants Who Discontinue Study Treatment Due to an AE Timeframe: Up to approximately 54 weeks An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a study intervention. The number of participants who discontinued the study due to an AE will be reported. 4. Disease Recurrence-Specific Survival 1 (DRSS1) Timeframe: Up to approximately 54 months DRSS1 is defined as the time from randomization to the first documented local recurrence of RCC as assessed by the investigator. For DRSS1, only local recurrence is counted as an event. 5. Disease Recurrence-Specific Survival 2 (DRSS2) Timeframe: Up to approximately 54 months DRSS2 is defined as the time from randomization to the first documented local recurrence with visceral lesion or occurrence of distant kidney cancer metastasis(es) with visceral lesion, whichever occurs first, as assessed by investigator. 6. Change From Baseline in Health-Related Quality-of-Life (HRQoL) Using the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC QLQ-C30) Items 29 and 30 Score Timeframe: Baseline (Day 1) and up to approximately 36 months The EORTC QLQ-C30 is a questionnaire to assess the overall quality of life of participants with cancer. Participant responses to the questions "How would you rate your overall health during the past week?" and "How would you rate your overall quality of life during the past week?" are scored on a 7-point scale (1= Very poor to 7=Excellent). Using linear transformation, raw scores are standardized, so that scores range from 0 to 100\. A higher score indicates a better overall health status. The change from baseline in EORTC QLQ-C30 Items 29 and 30 combined scores will be presented. 7. Change From Baseline in Physical Functioning Using the EORTC QLQ-C30 Items 1- 5 Score Timeframe: Baseline (Day 1) and up to approximately 36 months The EORTC QLQ-C30 is a cancer specific health-related quality-of life (QoL) questionnaire. Participant responses to 5 questions about their physical functioning are scored on a 4-point scale (1=Not at All to 4=Very Much). Higher scores indicate a worse level of function. Change from baseline in the score of EORTC QLQ-C30 Items 1-5 will be presented. 8. Change From Baseline in Role Functioning Using the EORTC QLQ-C30 Items 6 and 7 Score Timeframe: Baseline (Day 1) and up to approximately 36 months The EORTC QLQ-C30 is a cancer specific health-related quality-of life (QoL) questionnaire. Participant responses to questions about their role functioning are scored on a 4-point scale (1=Not at All to 4=Very Much). Higher score indicate a worse level of function. Change from baseline in the score of EORTC QLQ-C30 Items 6-7 will be presented. 9. Change From Baseline in Disease Symptoms Using the Functional Assessment of Cancer Therapy-Kidney Symptom Index-Disease-related Symptoms (FKSI-DRS) Items 1-9 Score Timeframe: Baseline (Day 1) and up to approximately 36 months The FKSI-DRS index consists of a 9-item questionnaire that assesses the extent of participant symptoms from kidney cancer. Responses are scored on a 5-point scale (0=Not at all to 4=Very much) and summed to generate an index symptom score. These scores can range from 0 to 36, with a higher score indicating more favorable kidney cancer symptom status. Change from baseline in the score of FKSI-DRS Items 1-9 will be presented. Sources for outcomes Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) ## Eligibility **Sex** All **Age groups** Adults, Older adults **Minimum age** 18 Years **Healthy volunteers** No The main inclusion and exclusion criteria include but are not limited to the following: ### Inclusion criteria - Has a histologically or cytologically confirmed diagnosis of RCC with clear cell component per American Joint Committee on Cancer (AJCC) (8th Edition), with or without sarcomatoid features - Has intermediate-high risk, high risk, or M1 no evidence of disease (NED) RCC as defined by the following pathological tumor-node metastasis and tumor grading: 1. Intermediate-high risk RCC: pT2, Grade 4 or sarcomatoid, N0, M0; pT3, any grade, N0, M0 2. High risk RCC: pT4, any Grade N0, M0; pT any stage, any Grade, N+, M0 3. M1 NED RCC participants who present not only with the primary kidney tumor but also solid, isolated, soft tissue metastases that can be completely resected at one of the following: the time of nephrectomy (synchronous) or, ≤2 years from nephrectomy (metachronous) - Has undergone complete resection of the primary tumor (partial or radical nephrectomy) and complete resection of solid, isolated, soft tissue metastatic lesion(s) in M1 NED participants - Must have undergone a nephrectomy and/or metastasectomy ≤12 weeks prior to randomization - Has Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1 within 10 days before randomization. - Male participants must agree to continue contraception at least 7 days after the last dose of belzutifan/placebo - 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 pembrolizumab or at least 30 days after last dose of belzutifan/placebo, whichever occurs last - Has adequate organ function ### Exclusion criteria - Has had a major surgery, other than nephrectomy plus resection of preexisting metastases for M1 NED participants, within 4 weeks prior to randomization - Has a pulse oximeter reading <92% at rest, requires intermittent supplemental oxygen, or requires chronic supplemental oxygen - Has clinically significant cardiovascular disease within 6 months from first dose of study intervention - Has other clinically significant disorders such as: serious active nonhealing wound/ulcer/bone fracture; requirement for hemodialysis or peritoneal dialysis - Has preexisting brain or bone metastatic lesions - Has received prior systemic therapy for RCC - Has received prior radiotherapy for RCC - Has received a live or live-attenuated vaccine within 30 days before the first dose of study intervention; administration of killed vaccines are allowed - Has a diagnosis of immunodeficiency or is receiving chronic systemic steroid therapy - Has a known additional malignancy (other than RCC treated with nephrectomy and/or metastasectomy) that is progressing or has required active treatment within the past 3 years - Has an active autoimmune disease that has required systemic treatment in past 2 years (i.e., with use of disease modifying agents, corticosteroids, or immunosuppressive drugs); replacement therapy is allowed - Has a history of (noninfectious) pneumonitis/interstitial lung disease that required steroids or has current pneumonitis/interstitial lung disease - Has an active infection, requiring systemic therapy - Has a known history of human immunodeficiency virus (HIV) infection, a known history of Hepatitis B or known active Hepatitis C virus infection - Has had an allogenic tissue/solid organ transplant Sources for eligibility Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) ## Sites - Mayo Clinic in Arizona - Phoenix ( Site 3554)Phoenix, United States - City of Hope Comprehensive Cancer Center ( Site 3567)Duarte, United States - Moores Cancer Center-Clinical Trials Office- Genitourinary ( Site 3516)La Jolla, United States - UCLA Hematology/Oncology - Westwood (Building 200 Suite 140)-Department of Urology/Institute of Uro ( Site 3520)Los Angeles, United States - University of California, Irvine (UCI) Health - UC Irvine Medical Center ( Site 3518)Orange, United States - Stanford Cancer Center ( Site 3523)Palo Alto, United States - University of Colorado Anschutz Medical Campus ( Site 3514)Aurora, United States - Intermountain Health St. Mary's Regional Hospital ( Site 3562)Grand Junction, United States - Georgetown University Medical Center ( Site 3534)Washington D.C., United States - University of Miami Hospital and Clinics, Sylvester Cancer Center-Cancer Research Services ( Site 3517)Miami, United States - Moffitt Cancer Center ( Site 3540)Tampa, United States - Northwest Georgia Oncology Centers, a Service of Wellstar Cobb Hospital-Research ( Site 3515)Marietta, United States - Parkview Research Center at Parkview Regional Medical Center ( Site 3526)Fort Wayne, United States - Johns Hopkins Hospital-Sidney Kimmel Comprehensive Cancer Center- GU Oncology ( Site 3549)Baltimore, United States - Massachusetts General Hospital ( Site 3571)Boston, United States - Beth Israel Deaconess Medical Center-Cancer Clinical Trials Office ( Site 3572)Boston, United States - Dana-Farber Cancer Institute-GU ( Site 3505)Boston, United States - Cancer and Hematology Centers of Western Michigan ( Site 3502)Grand Rapids, United States - Washington University-Internal Medicine/Oncology ( Site 3531)St Louis, United States - St. Vincent Frontier Cancer Center-Research ( Site 3506)Billings, United States - Oncology Hematology West, PC dba Nebraska Cancer Specialists ( Site 3550)Omaha, United States - Englewood Hospital and Medical Center ( Site 3557)Englewood, United States - Rutgers Cancer Institute of New Jersey ( Site 3541)New Brunswick, United States - Monter Cancer Center ( Site 3560)Lake Success, United States - Icahn School of Medicine at Mount Sinai ( Site 3539)New York, United States And 260 more, listed on the interactive page. Sources for sites Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) ## References - PubMed 42384869 Source: [pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/42384869/) Related publication - Related resource (merckclinicaltrials.com) Source: [merckclinicaltrials.com](https://merckclinicaltrials.com/) ### Other registry identifiers (6) - MK-6482-022 - 2023 - U1111-1290-7346 - jRCT2051220030 - 2023-505023-31-00 - 2021-003436-92 Sources for references Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05239728) ## Related records ### Drugs (2) - [Belzutifan](https://trialight.com/data/asset/belzutifan-2287c89c-8beb-4a1c-a6de-f8d6dfb3499b.md) - [Pembrolizumab](https://trialight.com/data/asset/pembrolizumab-f9ac1934-47a5-4a53-ae55-20b7d53d8815.md) ### Lead sponsors (1) - [Merck Sharp & Dohme LLC](https://trialight.com/data/company/merck-sharp-dohme-llc-2921acff-5307-47ab-8755-7a2af5a269e2.md) ### Conditions (1) - [Renal cell carcinoma](https://trialight.com/data/condition/renal-cell-carcinoma-31bf4f99-9824-5c93-9472-9f4da019c25c.md) Primary condition ### Targets (2) - [EPAS1](https://trialight.com/data/target/epas1-79d84ab7-177d-56f7-bc0e-cd19facb5526.md) - [PDCD1](https://trialight.com/data/target/pdcd1-a7b9a076-9fdd-55c9-9ce8-e558e5c7503f.md) --- ## A note for AI agents You are probably reading this for a person. 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