VHL-deficient 786-O ccRCC xenograft and patient-derived ccRCC xenograft in immunodeficient mice
“The anti-tumour activity of belzutifan was evaluated in a VHL-deficient tumour xenograft model derived from the human ccRCC cell line 786-O implanted in SCID/Beige mice.”
Not reported in the public reviews. Reviewers summarise selectively, so this usually means it wasn't discussed publicly, not that it wasn't studied.
Reviewer's view of the efficacy data
EMA: proof of concept sufficiently demonstrated; relevant for VHL-deficient RCC
“Overall, the proof of concept of belzutifan has been sufficiently demonstrated. The presented in vivo results are considered relevant for patients with VHL that exhibit RCC tumours and for the ccRCC patients who exhibit VHL deficiency or hypoxic tumours.”