Clinical trials show promise

"Clinical trials are an important part of the research spectrum. The idea for a clinical trial often starts in the lab..."
 
“Pazopanib could be considered in patients with von Hippel-Lindau disease and growing lesions who might require surgical resection in the near future, or to reduce tumor size in patients with unresectable lesions…”

Also
"shows promise in rare cancer syndrome..."
"encouraging preliminary activity..."