Abstract
In a retrospective single centre study we examined the outcome of five different therapy approaches in 48 patients in whom a relapse of CML (13 cytogenetic relapses, 35 hematological relapses: 10 chronic phase (CP), nine accelerated phase, 16 blast crisis) occurred after allogeneic BMT. Cyclosporin A (CsA) withdrawal, interferon alpha-2b (IFN-alpha) therapy, donor leukocyte transfusions (DLT), second transplantation (2nd BMT), and chemotherapy (CTX) alone were used and studied for their response rates. Patients who achieved a complete hematologic and cytogenetic remission (CR) were studied for BCR-ABL transcripts and for their chimerism status by PCR. A strong antileukemic effect was observed after abrupt CsA withdrawal, with 10 of 20 patients achieving a CR (50%). All 10 patients with early stage (nine cytogenetic and one CP), but none of the patients with advanced disease recurrence, responded to CsA withdrawal. IFN-alpha induced in five of 11 patients (45%) a stable cytogenetic remission, whereas treatment with DLT induced a CR in only two of 14 patients (14%). A second transplant was performed in six patients. Three of six patients (50%) survive disease-free at a median of 19 months after the 2nd BMT (range 10-25). The use of CTX alone did not induce a remission.
Publication types
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Comparative Study
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Research Support, Non-U.S. Gov't
MeSH terms
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Adolescent
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Adult
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Algorithms
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Antineoplastic Combined Chemotherapy Protocols / therapeutic use*
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Biomarkers, Tumor / analysis
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Blast Crisis / drug therapy
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Blast Crisis / therapy
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Bone Marrow Transplantation* / adverse effects
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Combined Modality Therapy
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Cyclosporine / administration & dosage*
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Disease Management
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Disease-Free Survival
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Female
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Fusion Proteins, bcr-abl / genetics
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Graft vs Host Disease / etiology
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Graft vs Host Disease / prevention & control
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Hematopoietic Stem Cell Transplantation*
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Humans
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Immunologic Factors / therapeutic use*
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Immunosuppressive Agents / administration & dosage*
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Interferon alpha-2
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Interferon-alpha / therapeutic use*
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Leukemia, Myelogenous, Chronic, BCR-ABL Positive / drug therapy
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Leukemia, Myelogenous, Chronic, BCR-ABL Positive / pathology
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Leukemia, Myelogenous, Chronic, BCR-ABL Positive / therapy*
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Leukemia, Myeloid, Accelerated Phase / drug therapy
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Leukemia, Myeloid, Accelerated Phase / therapy
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Leukocyte Transfusion*
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Male
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Middle Aged
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Neoplasm, Residual
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Polymerase Chain Reaction
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RNA, Messenger / analysis
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RNA, Neoplasm / analysis
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Recombinant Proteins
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Recurrence
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Remission Induction
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Retrospective Studies
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Salvage Therapy*
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Survival Analysis
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Treatment Outcome
Substances
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Biomarkers, Tumor
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Immunologic Factors
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Immunosuppressive Agents
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Interferon alpha-2
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Interferon-alpha
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RNA, Messenger
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RNA, Neoplasm
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Recombinant Proteins
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Cyclosporine
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Fusion Proteins, bcr-abl