PMID- 15572595 OWN - NLM STAT- MEDLINE DCOM- 20060707 LR - 20210206 IS - 0006-4971 (Print) IS - 0006-4971 (Linking) VI - 105 IP - 6 DP - 2005 Mar 15 TI - Imatinib mesylate therapy may overcome the poor prognostic significance of deletions of derivative chromosome 9 in patients with chronic myelogenous leukemia. PG - 2281-6 AB - Deletions of derivative chromosome 9 [der(9)] can be identified by fluorescence in situ hybridization (FISH) in 10% to 15% of patients with chronic myeloid leukemia (CML). Patients with der(9) deletions have been reported to have an adverse outcome when treated with chemotherapy, interferon, and possibly imatinib mesylate. We investigated the frequency and prognostic significance of der(9) deletions among 352 patients with CML treated with imatinib mesylate at our institution, in whom a deletion status of der(9) was determined. Thirty-three patients (9%; 95% CI 0.07, 0.13) (30 in chronic phase, 3 in accelerated phase) had der(9) deletions. The rates of major (82% vs 79%, P = 0.82) and complete cytogenetic response (76% vs 66%, P = .33) with imatinib mesylate therapy were similar in patients with and without der(9) deletions, respectively. After a median follow-up of 28 months, there was no difference in overall survival (P = .30) or response duration (P = .49) in patients with and without deletions. In a multivariate analysis, der(9) deletions had no significant impact on response, survival, or response duration. We conclude that treatment with imatinib mesylate overcomes the adverse prognostic significance of der(9) deletions in patients with CML. FAU - Quintas-Cardama, Alfonso AU - Quintas-Cardama A AD - Department of Leukemia, M.D. Anderson Cancer Center, 1515 Holcombe Blvd, Unit 428, Houston, TX 77030, USA. FAU - Kantarjian, Hagop AU - Kantarjian H FAU - Talpaz, Moshe AU - Talpaz M FAU - O'Brien, Susan AU - O'Brien S FAU - Garcia-Manero, Guillermo AU - Garcia-Manero G FAU - Verstovsek, Srdan AU - Verstovsek S FAU - Rios, Mary Beth AU - Rios MB FAU - Hayes, Kimberly AU - Hayes K FAU - Glassman, Armand AU - Glassman A FAU - Bekele, B Nebiyou AU - Bekele BN FAU - Zhou, Xian AU - Zhou X FAU - Cortes, Jorge AU - Cortes J LA - eng PT - Clinical Trial PT - Comparative Study PT - Journal Article DEP - 20041130 PL - United States TA - Blood JT - Blood JID - 7603509 RN - 0 (Antineoplastic Agents) RN - 0 (Benzamides) RN - 0 (Piperazines) RN - 0 (Pyrimidines) RN - 8A1O1M485B (Imatinib Mesylate) RN - 9008-11-1 (Interferons) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Antineoplastic Agents/*administration & dosage/adverse effects MH - Benzamides MH - *Chromosome Deletion MH - *Chromosomes, Human, Pair 9 MH - Disease-Free Survival MH - Female MH - Follow-Up Studies MH - Humans MH - Imatinib Mesylate MH - In Situ Hybridization, Fluorescence MH - Interferons/administration & dosage/adverse effects MH - Leukemia, Myelogenous, Chronic, BCR-ABL Positive/*drug therapy/genetics/mortality MH - Male MH - Middle Aged MH - Piperazines/*administration & dosage/adverse effects MH - Pyrimidines/*administration & dosage/adverse effects MH - Remission Induction MH - Treatment Outcome EDAT- 2004/12/02 09:00 MHDA- 2006/07/11 09:00 CRDT- 2004/12/02 09:00 PHST- 2004/12/02 09:00 [pubmed] PHST- 2006/07/11 09:00 [medline] PHST- 2004/12/02 09:00 [entrez] AID - S0006-4971(20)45726-X [pii] AID - 10.1182/blood-2004-06-2208 [doi] PST - ppublish SO - Blood. 2005 Mar 15;105(6):2281-6. doi: 10.1182/blood-2004-06-2208. Epub 2004 Nov 30.