Testing HC-7366 with Belzutifan for kidney cancer treatment

A Phase 1b, Open-Label, Safety, Tolerability, and Efficacy Study of HC- 7366 in Combination With Belzutifan (WELIREG™) in Patients With Locally Advanced or Metastatic Renal Cell Carcinoma

Phase 1 Interventional HiberCell, Inc. · NCT06234605

This study is testing a new treatment combining HC-7366 with belzutifan to see if it helps people with advanced kidney cancer feel better and live longer.

Quick facts

PhasePhase 1
Study typeInterventional
Enrollment80 (estimated)
Ages18 Years and up
SexAll
SponsorHiberCell, Inc. Industry-sponsored
Locations20 sites (Tucson, Arizona and 19 other locations)
Trial IDNCT06234605 on ClinicalTrials.gov

What this trial studies

This Phase 1b clinical trial evaluates the safety, tolerability, and efficacy of HC-7366 in combination with belzutifan (WELIREG™) in patients with locally advanced or metastatic renal cell carcinoma (RCC) that has a predominant clear cell component. The study is designed as a multicenter, open-label trial that includes a monotherapy cohort and a combination dose escalation and expansion. Approximately 80 patients will be enrolled to determine the maximum tolerated dose of HC-7366 when used alongside belzutifan, regardless of VHL gene mutation status.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 and older with locally advanced or metastatic RCC characterized by a predominant clear cell component.

Not a fit: Patients with RCC that does not have a clear cell component or those who are not eligible for the specified treatment regimen may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a new treatment option for patients with advanced kidney cancer.

How similar studies have performed: While this approach is novel in combining HC-7366 with belzutifan, similar studies have shown promise in treating advanced kidney cancer with targeted therapies.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Has diagnosis of locally advanced (inoperable) or metastatic RCC with a predominant clear cell component
* Be age 18 years or older (male or female) at the time of consent

Where this trial is running

Tucson, Arizona and 19 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Renal Cell CarcinomaccRCCbelzutifankidney cancermetastaticlocally advancedHC-7366WELIREG™
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.