What is your preferred systemic therapy for metastatic malignant peripheral nerve sheath tumor with early relapse after adjuvant AIM?

Persons with MPNST and NF-1 do worse than people without NF-1. I am suspicious that MPNST in persons without NF-1 is actually more than one entity but in NF-1 it is all the same entity.

I have had some success with pazopanib in persons without NF-1. Also I have seen two persons who responded to the c...