An Open-label, Randomized Phase 3 Study of MK-6482 Versus Everolimus in Participants with Advanced Renal Cell Carcinoma That Has Progressed After Prior PD-1/L1 and VEGF-Targeted Therapies

NOT ENROLLING
Protocol # :
19-897
Conditions
Carcinoma, Renal Cell
Phase
III
Disease Sites
Kidney
Principal Investigator
Choueiri, Toni, K
Site Investigator
Gao, Xin
McDermott, David, F.
Site Research Nurses
Bretta, Katherine, v.
Cash, Hanna, Marie
Childs, Alexandra
Gotthardt, Susan, Jean
Gurski, Carol
Healy, Erin, C.
Jundzil, Theresa
Kabarame, Liliane
Kelleher, Kaitlin
Lagerstedt, Elizabeth
Leisner, Claire
Markt, Denise, A.
Mingrino, Sage
Pace, Amanda
Porter, Kathryn
Prisby, Judith
Sweet, Amanda
Theodore, Catherine
Walsh, Meghara

Trial Description

The primary objective of this study is to compare belzutifan to everolimus with respect
to progression-free survival (PFS) per Response Evaluation Criteria in Solid Tumors
Version 1.1 (RECIST 1.1) as assessed by Blinded Independent Central Review (BICR) and to
compare everolimus with respect to overall survival (OS). The hypothesis is that
belzutifan is superior to everolimus with respect to PFS and OS.

Eligibility Requirements

Inclusion Criteria:

- Has unresectable, locally advanced or metastatic clear cell renal cell carcinoma
(RCC)

- Has had disease progression on or after having received systemic treatment for
locally advanced or metastatic RCC with both Programmed cell death 1 ligand 1
(PD-1/L1) checkpoint inhibitor and a vascular endothelial growth factor - tyrosine
kinase inhibitor (VEGF-TKI) in sequence or in combination

- Has received no more than 3 prior systemic regimens for locally advanced or
metastatic RCC

- A male participant is eligible to participate if he is abstinent from heterosexual
intercourse or agrees to use contraception during the intervention period and for at
least 7 days after the last dose of study intervention

- A female participant is eligible to participate if she is not pregnant, not
breastfeeding, and at least 1 of the following conditions applies: Not a (woman of
childbearing potential) WOCBP OR A WOCBP who agrees to follow the contraceptive
guidance during the intervention period and for at least 30 days after the last dose
of study intervention for those randomized to belzutifan and for at least 8 weeks
after the last dose of study intervention for those randomized to everolimus

- The participant (or legally acceptable representative if applicable) has provided
documented informed consent for the study

- Has adequate organ function

Exclusion Criteria:

- Has a known additional malignancy that is progressing or has required active
treatment within the past 3 years. (Participants with basal cell carcinoma of the
skin, squamous cell carcinoma of the skin, or carcinoma in situ [e.g., breast
carcinoma, cervical cancer in situ] that have undergone potentially curative therapy
are not excluded)

- Has known central nervous system (CNS) metastases and/or carcinomatous meningitis.
(Participants with previously treated brain metastases may participate provided they
are radiologically stable for at least 4 weeks (28 days) by repeat imaging)

- Has clinically significant cardiac disease, including unstable angina, acute
myocardial infarction within 6 months from Day 1 of study medication administration,
or New York Heart Association Class III or IV congestive heart failure. (Medically
controlled arrhythmia stable on medication is permitted)

- Has poorly controlled hypertension defined as systolic blood pressure (SBP) ≥150 mm
Hg and/or diastolic blood pressure (DBP) ≥90 mm Hg

- Has moderate to severe hepatic impairment (Child-Pugh B or C)

- Has a known psychiatric or substance abuse disorder that would interfere with
cooperation with the requirements of the study

- Is unable to swallow orally administered medication or has a gastrointestinal
disorder affecting absorption (e.g., gastrectomy, partial bowel obstruction,
malabsorption)

- Has known hypersensitivity or allergy to the active pharmaceutical ingredient or any
component of the study intervention (belzutifan or everolimus) formulations

- Has received prior treatment with belzutifan or another hypoxia inducible factor 2α
(HIF-2α inhibitor)

- Has received prior treatment with everolimus or any other specific or selective
target of rapamycin complex 1 (TORC1)/ phosphatidylinositol 3-kinase (PI3K)/ protein
kinase B (AKT) inhibitor (e.g., temsirolimus) in the advanced disease setting

- Has received any type of systemic anticancer antibody (including investigational
antibody) within 4 weeks before randomization

- Has received prior radiotherapy within 2 weeks prior to randomization

- Has had major surgery within 3 weeks prior to randomization

- Has received a live vaccine within 30 days prior to randomization. Examples of live
vaccines include, but are not limited to, the following: measles, mumps, rubella,
varicella/zoster (chicken pox), yellow fever, rabies, Bacillus Calmette-Guérin
(BCG), and typhoid vaccine. Seasonal influenza vaccines for injection are generally
killed virus vaccines and are allowed; however, intranasal influenza vaccines are
live attenuated vaccines and are not allowed

- Is currently receiving either strong (e.g., itraconazole, telithromycin,
clarithromycin, protease inhibitors boosted with ritonavir or cobicistat, indinavir,
saquinavir, nelfinavir, boceprevir, telaprevir) or moderate (e.g., ciprofloxacin,
erythromycin, diltiazem, fluconazole, verapamil) inhibitors of cytochrome P450 3A4
(CYP3A4) that cannot be discontinued for the duration of the study

- Is currently receiving either strong (phenobarbital, enzalutamide, phenytoin,
rifampicin, rifabutin, rifapentine, carbamazepine, nevirapine and St John's Wort) or
moderate (e.g., bosentan, efavirenz, modafinil) inducers of CYP3A4 that cannot be
discontinued for the duration of the study

- Is currently participating in a study of an investigational agent or is currently
using an investigational device

- Has an active infection requiring systemic therapy

- Has active bacillus tuberculosis (TB)

- Has a diagnosis of immunodeficiency or is receiving chronic systemic steroid therapy
(dosing exceeding 10 mg daily of prednisone equivalent) or any other form of
immunosuppressive therapy within 7 days prior to randomization

- Has a known history of human immunodeficiency virus (HIV) infection. (Testing for
HIV at screening is only required if mandated by local health authority

- Has a known history of Hepatitis B virus (HBV) (defined as Hepatitis B surface
antigen [HBsAg] reactive) or known active Hepatitis C virus (HCV) (defined as HCV
ribonucleic acid [RNA] [qualitative] is detected) infection

19-897