HomeTrialNCT07405164
NCT07405164Phase 3RECRUITING

Extension Study for Participants in Studies That Include Belzutifan (MK-6482-043/LITESPARK-043)

Study Summary

Researchers are looking for new ways to treat advanced solid tumors and von Hippel-Lindau (VHL)-related tumors: * Advanced means the cancer has spread to other parts of the body (metastatic) or cannot be removed with surgery * Solid tumors are cancers mostly in body organs and tissues, not in the blood or other body liquids * VHL-related tumors are tumors caused by VHL disease. VHL disease is passed down from parents to children and people with VHL disease have a higher chance of getting certain types of cancer Researchers want to learn about the long-term effects of a trial medicine called belzutifan. Belzutifan, also called MK-6482, is designed to block a protein that helps tumors grow and survive. This is an extension trial, which means only people who were in certain other belzutifan trials (called parent trials) may be able to join. The goal of this trial is to learn how long people live after they start taking belzutifan.

View on ClinicalTrials.gov ↗
Study Details
Enrollment450 participants
Primary Completion
Lead SponsorMerck Sharp & Dohme LLC
Data Retrieved2026-04-11 02:55:36.205341+00:00
What This Trial Means for Biotech Investors
Trial Phase Context

Phase 3 trials are pivotal studies with large patient populations (hundreds to thousands) designed to prove efficacy and safety for FDA submission. A successful Phase 3 readout is typically the last major hurdle before a New Drug Application (NDA) or BLA filing.

Status & Expected Data

Currently recruiting: the trial is enrolling patients. A data readout is not expected until after enrollment closes and the follow-up period is complete.

Enrolled: 450 participants
Sponsor Catalyst Profile

Merck & Co (MRK) is the sponsoring company for this trial. BiotechSign currently grades this company F (35/100) based on composite catalyst signals across its full pipeline. This trial is one data point in that overall catalyst picture.

Not financial advice. BiotechSign data is sourced from ClinicalTrials.gov, SEC EDGAR, and other public databases for research and informational purposes only. It does not constitute investment recommendations. Always do your own due diligence before making investment decisions.