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NCT07489495PHASE3RECRUITING

A Clinical Study of Belzutifan (MK-6482) and Zanzalintinib in People With Renal Cell Carcinoma (RCC) (LITESPARK-034/LS-034/MK-6482-034)

A Phase 3, Randomized, Double-blind, Study of Belzutifan + Zanzalintinib Versus Belzutifan + Placebo in Participants With Advanced RCC Who Have Progressed on or After Both PD-1/L1 and VEGF-TKI Therapies in Sequence or in Combination (LITESPARK-034)

Sponsor: Merck Sharp & Dohme LLC + Exelixis

No open prediction endpoints

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Key Facts

Study type
INTERVENTIONAL
Conditions
Carcinoma, Renal Cell
Interventions
Belzutifan, Zanzalintinib, Placebo
Enrollment
758 participants
Primary completion
Nov 2030
Study completion
Nov 2030
First posted
Mar 2026
Last updated
May 2026

Primary Endpoints (CT.gov)

Progression-free Survival (PFS)

Time frame: Up to approximately 30 months

Overall Survival (OS)

Time frame: Up to approximately 50 months

Secondary Endpoints

Objective Response Rate (ORR)

Duration of Response (DOR)

Number of Participants Who Experience One or More Adverse Events (AEs)

Eligibility Criteria

Inclusion Criteria: The main inclusion criteria include but are not limited to the following: * Has a histologically confirmed diagnosis of unresectable, advanced renal cell carcinoma (RCC) with clear cell component (with or without sarcomatoid features) ie, Stage IV RCC per American Joint Committee on Cancer (8th Edition) * Has measurable disease per Response Evaluation Criteria In Solid Tumors Version 1.1 (RECIST 1.1) * Has received no more than 3 prior systemic regimens for RCC, including only 1 prior anti-Programmed Cell Death-1/Programmed Cell Death 1 Ligand 1 therapy Exclusion Criteria: For exclusion criteria: The main exclusion criteria include but are not limited to the following: * Has any of the following: a pulse oximeter reading \<92% at rest, requires intermittent supplemental oxygen, or required chronic supplemental oxygen * Has clinically significant cardiovascular disease within 12 months from first dose of study intervention * Has deep vein thrombosis within 3 mon

Read full criteria on CT.gov →

✦ Analyst Commentary

Expert commentary on why this trial matters and what to watch for.

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Source

Open on ClinicalTrials.gov