Hey Luke, glad you found it interesting:

Tripawd Limb Cancer Treatments with Bisphosphonates, Palladia

Although Dr. Seguin didn't specifically say CSU will use Palladia for lung metastasis each and every time, he may have been referring to it's use in that manner when he said:

And the reality is that sometimes we come to a point where we’ve exhausted what we think might work and then we say, “Let’s try Palladia.” So sometimes there’s not necessarily good evidence that it’s going to work but we are at a point where we say, “Let’s give it a try and see what happens.”

Stay tuned for next week's third interview with the good doctor, "What’s Next After Lung Metastasis in Tripawds with Limb Cancer?"