 For people with relapsed AML , the only proven potentially curative therapy is a hematopoietic stem cell transplant , if one has not already been performed . In 2000 , the monoclonal antibody @-@ linked cytotoxic agent gemtuzumab ozogamicin ( Mylotarg ) was approved in the United States for people aged more than 60 years with relapsed AML who are not candidates for high @-@ dose chemotherapy . This drug was voluntarily withdrawn from the market by its manufacturer , Pfizer in 2010 . 
