Relapsed/Refractory B-cell Acute Lymphoblastic Leukemia
Relapsed/Refractory B-cell Acute Lymphoblastic Leukemia (R/R B-ALL) is a type of blood cancer that occurs when B-cell acute lymphoblastic leukemia returns after treatment or does not respond to initial therapy. It primarily affects the bone marrow and blood, leading to symptoms such as fatigue, fever, and easy bruising.