title: Philadelphia chromosome (Ph1)-positive acute lymphoblastic leukemia (ALL) is resistant to effective therapy for Ph1-negative ALL.
abstract: Amsacrine with high-dose cytarabine is effective therapy for Philadelphia chromosome (Ph1)-negative acute lymphoblastic leukemia (ALL). We examined the effectiveness of this regimen in 19 patients with Ph1-positive lymphoblastic leukemia. Four had an antecedent chronic phase of chronic myelogenous leukemia and 15 presented with ALL. There were no complete responders in either group. All 14 patients whose bone marrow could be assessed after completion of therapy showed persistent leukemia. We conclude that patients with Ph1-positive lymphoblastic leukemia have a disease that is resistant to treatment that is highly effective in patients with Ph1-negative ALL.
authors.affiliation: New York Medical College, Division of Neoplastic Diseases, Valhalla.
authors.forename: Z A
authors.initials: ZA
authors.lastname: Arlin
authors.forename: E J
authors.initials: EJ
authors.lastname: Feldman
authors.forename: T
authors.initials: T
authors.lastname: Ahmed
authors.forename: D
authors.initials: D
authors.lastname: Liebowitz
authors.forename: L R
authors.initials: LR
authors.lastname: Shapiro
authors.forename: P L
authors.initials: PL
authors.lastname: Wilmot
mesh_terms: D000293:Adolescent; D000328:Adult; D000677:Amsacrine / Q000008:administration & dosage; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use; D003561:Cytarabine / Q000008:administration & dosage; D004341:Drug Evaluation; D006801:Humans; D015464:Leukemia, Myelogenous, Chronic, BCR-ABL Positive / Q000188:drug therapy*; D054438:Leukemia, Myeloid, Chronic, Atypical, BCR-ABL Negative / Q000188:drug therapy*; D008875:Middle Aged; D011189:Potassium Chloride / Q000008:administration & dosage; D012074:Remission Induction; D013997:Time Factors
chemical_list: D000677:Amsacrine; D003561:Cytarabine; D011189:Potassium Chloride