Refractory all in adolescent male 21 years management other than allogeneic stem cell transplant?

Complex question: only experts in the field, hematologists/oncologists would answer this question after careful review of the case and different options available, I know it might be frustrating at times, but complex condition as ALL need to be managed in specialized hospitals/institutions, it's your right as a patient to have second and even third opinion, but in the end you have to trust the treating team, good luck