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Recruiting Phase 2 NCT04924075

NCT04924075 Belzutifan/MK-6482 for the Treatment of Advanced Pheochromocytoma/Paraganglioma (PPGL), Pancreatic Neuroendocrine Tumor (pNET), Von Hippel-Lindau (VHL) Disease-Associated Tumors, Advanced Gastrointestinal Stromal Tumor (wt GIST), or Solid Tumors With HIF-2α Related Genetic Alterations (MK-6482-015)

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Clinical Trial Summary
NCT ID NCT04924075
Status Recruiting
Phase Phase 2
Sponsor Merck Sharp & Dohme LLC
Condition Pheochromocytoma/Paraganglioma
Study Type INTERVENTIONAL
Enrollment 355 participants
Start Date 2021-08-12
Primary Completion 2029-12-27

Eligibility & Interventions

Sex All sexes
Min Age 12 Years
Max Age N/A
Study Type INTERVENTIONAL
Interventions
Belzutifan

Eligibility Fast-Check

Enter your details for a quick preliminary check. This does not replace medical advice.

What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

In Phase 2, researchers evaluate early signs of effectiveness. You may be randomized to receive the active treatment or a comparator. Monitoring continues closely.

This trial targets 355 participants in total. It began in 2021-08-12 with a primary completion date of 2029-12-27.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief Summary

This is a study to evaluate the efficacy and safety of belzutifan monotherapy in participants with advanced pheochromocytoma/paraganglioma (PPGL), pancreatic neuroendocrine tumor (pNET), von Hippel-Lindau (VHL) disease-associated tumors, advanced wt (wild-type) gastrointestinal stromal tumor (wt GIST), or advanced solid tumors with hypoxia inducible factor-2 alpha (HIF-2α) related genetic alterations. The primary objective of the study is to evaluate the objective response rate (ORR) of belzutifan per response evaluation criteria in solid tumors version 1.1 (RECIST 1.1) by blinded independent central review (BICR).

Eligibility Criteria

The main inclusion criteria include but are not limited to the following: * Male and female participants at least 12 years of age (at least 18 years of age for Cohort B1) * Diagnosis of one of the following: Advanced/metastatic pheochromocytoma/paraganglioma (PPGL), pancreatic neuroendocrine tumors (pNET), von Hippel-Lindau (VHL) disease associated localized tumors, or advanced wild-type gastrointestinal stromal tumor (wt GIST) or advanced solid tumors with Hypoxia Inducible Factor- 2 alpha subunit (HIF-2α) related genetic alterations * Cohort B1: VHL Disease-associated tumors: * Have a diagnosis of VHL disease as determined by a germline test locally and/or clinical diagnosis * Must be ≥18 years of age * Has a life expectancy of at least 3 months The main exclusion criteria include but are not limited to the following: * Unable to swallow orally administered medication or has a disorder that might affect the absorption of belzutifan * History of a second malignancy, unless potentially curative treatment has been completed with no evidence of malignancy for 2 years * Any of the following: A pulse oximeter reading \<92% at rest, or requires intermittent supplemental oxygen, or requires chronic supplemental oxygen * Clinically significant cardiac disease, including unstable angina, acute myocardial infarction, or arterial bypass (CABG) or Percutaneous transluminal coronary angioplasty (PTCA) ≤6 months from study entry, or New York Heart Association Class III or IV congestive heart failure * Received prior treatment (except somatostatin analogs) with chemotherapy, targeted therapy, biologics, or other investigational therapy within the past 4 weeks of first dose of study intervention

Contact & Investigator

Central Contact

Toll Free Number

✉ Trialsites@msd.com

📞 1-888-577-8839

Principal Investigator

Medical Director

STUDY DIRECTOR

Merck Sharp & Dohme LLC

Frequently Asked Questions

Who can join the NCT04924075 clinical trial?

This trial is open to participants of all sexes, aged 12 Years or older, studying Pheochromocytoma/Paraganglioma. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

What phase is the NCT04924075 trial and what does that mean for participants?

Phase 2 trials evaluate whether the treatment shows signs of effectiveness while continuing to monitor safety. More participants are enrolled than in Phase 1 to help refine the treatment protocol.

Is NCT04924075 currently recruiting?

Yes, NCT04924075 is actively recruiting participants. Contact the research team at Trialsites@msd.com for enrollment information.

Where is the NCT04924075 trial being conducted?

This trial is being conducted at Los Angeles, United States, Chicago, United States, Warrenville, United States, Iowa City, United States and 11 additional locations.

Who is sponsoring the NCT04924075 clinical trial?

NCT04924075 is sponsored by Merck Sharp & Dohme LLC. The principal investigator is Medical Director at Merck Sharp & Dohme LLC. The trial plans to enroll 355 participants.

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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: July 2026  ·  Data Methodology