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)

• ClinicalTrials.gov Identifier: NCT05239728
• Recruitment Status: Recruiting
• First Posted: February 15, 2022
• Last Update Posted: May 30, 2023
• Sponsor: Merck Sharp & Dohme LLC
• Information provided by (Responsible Party): Merck Sharp & Dohme LLC

Tracking Information

• First Submitted Date: February 4, 2022
• First Posted Date: February 15, 2022
• Last Update Posted Date: May 30, 2023
• Actual Study Start Date: March 15, 2022
• Estimated Primary Completion Date: October 25, 2027 (Final data collection date for primary outcome measure)

Current Primary Outcome Measures (submitted: February 4, 2022)

Disease-Free Survival (DFS) [ Time Frame: Up to approximately 66 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.

• Original Primary Outcome Measures: Same as current

Current Secondary Outcome Measures (submitted: February 4, 2022)

• Overall Survival (OS) [ Time Frame: Up to approximately 94 months ]
  OS is defined as the time from randomization to death due to any cause.
• Number of Participants Who Experience At Least One Adverse event (AE) [ Time Frame: 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.
• Number of Participants Who Discontinue Study Treatment Due to an AE [ Time Frame: 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.
• Disease Recurrence-Specific Survival 1 (DRSS1) [ Time Frame: Up to approximately 66 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.
• Disease Recurrence-Specific Survival 2 (DRSS2) [ Time Frame: Up to approximately 66 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.
• 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 [ Time Frame: Baseline (Day 1) and Up to approximately 66 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 score will be presented.
• Change From Baseline in Physical Functioning Using the EORTC QLQ-C30 Items 1- 5 Score [ Time Frame: Baseline (Day 1) and Up to approximately 66 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.
• Change From Baseline in Role Functioning Using the EORTC QLQ-C30 Items 6 and 7 Score [ Time Frame: Baseline (Day 1) and Up to approximately 66 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 scores indicate a worse level of function. Change from baseline in the score of EORTC QLQ-C30 Items 6-7 will be presented.
• 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 [ Time Frame: Baseline (Day 1) and Up to approximately 66 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.

• Original Secondary Outcome Measures: Same as current
• Current Other Pre-specified Outcome Measures: Not Provided
• Original Other Pre-specified Outcome Measures: Not Provided

Descriptive Information

• Brief 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)
• 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)

Brief 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).

• Detailed Description: Not Provided
• Study Type: Interventional
• Study Phase: Phase 3
• Study Design: Allocation: Randomized; Intervention Model: Parallel Assignment; Masking: Triple (Participant, Investigator, Outcomes Assessor); Primary Purpose: Treatment
• Condition: Clear Cell Renal Cell Carcinoma

Intervention

• Drug: Belzutifan
  Three 40 mg tablets given as a single oral 120 mg dose.
  Other Names:

  • MK-6482
  • PT2977
  • WELIREG™
• Biological: Pembrolizumab
  400 mg via IV infusion
  Other Names:

  • MK-3475
  • Keytruda®
• Drug: Placebo
  Oral tablet

Study Arms

• Experimental: Belzutifan + Pembrolizumab
  Participants receive belzutifan 120 mg orally once daily (QD) for up to approximately 54 weeks PLUS pembrolizumab 400 mg via intravenous (IV) infusion once every 6 weeks (Q6W) for up to 9 administrations (up to approximately 54 weeks).
  Interventions:

  • Drug: Belzutifan
  • Biological: Pembrolizumab
• Experimental: Placebo + Pembrolizumab
  Participants receive placebo orally QD for up to approximately 54 weeks PLUS pembrolizumab 400 mg via IV infusion once Q6W for up to 9 administrations (up to approximately 54 weeks).
  Interventions:

  • Biological: Pembrolizumab
  • Drug: Placebo

• Publications *: Not Provided

Recruitment Information

• Recruitment Status: Recruiting
• Estimated Enrollment (submitted: February 4, 2022): 1600
• Original Estimated Enrollment: Same as current
• Estimated Study Completion Date: January 25, 2030
• Estimated Primary Completion Date: October 25, 2027 (Final data collection date for primary outcome measure)

Eligibility Criteria

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

Sex/Gender

• Sexes Eligible for Study: All

• Ages: 18 Years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No

Contacts

Contact: Toll Free Number; 1-888-577-8839; Trialsites@merck.com

• Listed Location Countries: Australia, Brazil, Bulgaria, Canada, Chile, China, Colombia, Czechia, Finland, France, Germany, Greece, Hungary, Ireland, Israel, Italy, Japan, Korea, Republic of, Malaysia, Mexico, Netherlands, New Zealand, Poland, Romania, Singapore, Spain, Sweden, Taiwan, Thailand, Turkey, United Kingdom, United States

Administrative Information

• NCT Number: NCT05239728
• Other Study ID Numbers: 6482-022; MK-6482-022 ( Other Identifier: Merck ); LITESPARK-022 ( Other Identifier: Merck ); jRCT2051220030 ( Registry Identifier: jRCT ); 2021-003436-92 ( EudraCT Number )
• Has Data Monitoring Committee: Yes

U.S. FDA-regulated Product

• Studies a U.S. FDA-regulated Drug Product: Yes
• Studies a U.S. FDA-regulated Device Product: No

IPD Sharing Statement

• Plan to Share IPD: Yes
• Plan Description: http://engagezone.msd.com/doc/ProcedureAccessClinicalTrialData.pdf
• URL: http://engagezone.msd.com/ds_documentation.php

• Current Responsible Party: Merck Sharp & Dohme LLC
• Original Responsible Party: Same as current
• Current Study Sponsor: Merck Sharp & Dohme LLC
• Original Study Sponsor: Same as current
• Collaborators: Not Provided

Investigators

• Study Director: Medical Director; Merck Sharp & Dohme LLC

• PRS Account: Merck Sharp & Dohme LLC
• Verification Date: May 2023