Addition of sargramostim (GM-CSF) to imatinib results in major cytogenetic response in a patient with chronic myeloid leukemia.
Imatinib mesylate, an inhibitor of BCR/ABL tyrosine kinase, has remarkable activity in chronic myeloid leukemia resulting in an 87% major cytogenetic response. We describe a woman who failed to achieve any cytogenetic response after 2.5 years of imatinib, 400mg daily. When daily sargramostim (GM-CSF) 100 microg/m2 was added, cytogenetic studies revealed a gradual increase in percentage of normal cells from start, 4, 9, and 15 months at 0%, 10%, 55%, and 85%, respectively. She became transfusion independent after starting GM-CSF. The addition of GM-CSF to imatinib resulted in a clinical benefit and a major cytogenetic response in this patient.
Connor
Rebecca F
RF
Department of Internal Medicine, Section on Hematology and Oncology, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA. rconnor@wfubmc.edu
Hurd
David
D
Pettenati
Mark J
MJ
Koty
Patrick
P
Molnár
István
I
D000970:Antineoplastic Agents; D001549:Benzamides; D001706:Biopsy; D001853:Bone Marrow / Q000473:pathology; D005260:Female; D016044:Fusion Proteins, bcr-abl / Q000037:antagonists & inhibitors; D016178:Granulocyte-Macrophage Colony-Stimulating Factor / Q000627:therapeutic use*; D006801:Humans; D000068877:Imatinib Mesylate; D015464:Leukemia, Myelogenous, Chronic, BCR-ABL Positive / Q000188:drug therapy* / Q000235:genetics; D010677:Philadelphia Chromosome; D010879:Piperazines / Q000627:therapeutic use*; D011743:Pyrimidines / Q000627:therapeutic use*; D011994:Recombinant Proteins
D000970:Antineoplastic Agents; D001549:Benzamides; D010879:Piperazines; D011743:Pyrimidines; D011994:Recombinant Proteins; C081222:sargramostim; D016178:Granulocyte-Macrophage Colony-Stimulating Factor; D000068877:Imatinib Mesylate; D016044:Fusion Proteins, bcr-abl