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慢性淋巴细胞性白血病治疗研究进展.ppt
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    慢性淋巴细胞性白血病

    治疗研究进展

    Diagnosis

    ? Diagnostic investigations

    * Blood count. lymphocytosis of >5 ×109/l.

    * Lymphocyte morphology

    * Immunophenotyping

    ? Additional investigations

    * bone marrow aspirate and trephine biopsy

    * Lymph node biopsy

    * Cytogenetic/ FISH analysis.

    * Computed tomography scan and/or ultrasound

    Scoring system for the diagnosis of CLL

    Scores in CLL are usually >3, in other B-cell malignancies the scores are usually <3

    Prognostic factors in chronic lymphocytic leukaemiSurvival based on IgV gene

    mutation and CD38 expression

    Staging systems in chronic lymphocytic leukaemia

    Management of CLL

    Indications for treatment

    ? Progressive marrow failure: the development or worsening of anaemia and/or thrombocytopenia

    ? Massive (>10 cm) or progressive lymphadenopathy

    ? Massive (>6 cm) or progressive splenomegaly

    ? Progressive lymphocytosis

    * >50% increase over 2 months

    * Lymphocyte doubling time <6 months

    ? Systemic symptoms

    * Weight loss >10% in previous 6 months

    * Fever >38C for >=2 weeks

    * Extreme fatigue

    * Night sweats

    ? Autoimmune cytopenias

    Response criteria

    Poor prognosis of advanced, relapsed CLL

    ? First-line Therapy

    * Fludarabine ± rituximab

    * Chlorambucil (pulse or continuous) ± prednisone

    * Cyclophosphamide ± prednisone

    * CVP (cyclophosphamide, vincristine, prednisone)

    * FC (fludarabine, cyclophosphamide) ± rituximab

    ? Second-line Therapy

    * Alemtuzumab

    * PC (pentostatin, cyclophosphamide) ± rituximab

    * Chemotherapy (as above) ± rituximab or alemtuzumab

    ? Radiotherapy

    * Splenic irradiation

    * Radiotherapy for bulky nodal masses

    ? Splenectomy

    * Symptomatic massive splenomegaly.

    * Refractory cytopenias.

    * Autoimmune cytopenias

    * Hypersplenism

    Chemoimmunotherapy

    ? Alkylating agents.

    * Chlorambucil+/-prednisolone/prednisone

    * high-dose chlorambucil

    * CVP

    * CHOP

    ? Purine analogues

    * Fludarabine

    * Cladribine

    * Pentostatin

    ? Monoclonal antibodies

    * Alemtuzumab

    * Rituximab

    Fludarabine

    CALGB 9011

    ? Fludarabine 25mg/m2ivD1-5

    ? Chlorambucil 40 mg/m2 po

    ? Fludarabine 20mg/m2ivD1-5 plus Chlorambucil 20 mg/m2 po

    The treatments were repeated every 28 days for a maximum of 12 cycles

    Fludarabine versus chlorambucil in untreated CLL

    Fludarabine versus chlorambucil in untreated CLL

    Fludarabine versus chlorambucil in untreated CLL

    CLL4 protocol of the GCLLSG

    for advanced CLL

    CLL4 protocol of the GCLLSG

    FC versus F in first line therapy: response*

    CLL4 protocol: progression-free

    and event-free survival

    Cladribine versus chlorambucil in CLL

    Pentostatin

    Monoclonal antibodies

    Therapeutic efficacy of alemtuzumab

    and rituximab as single agents in CLL

    Rituximab monotherapy in relapsed/refractory CLL/SLL

    CALGB 9712 protocol

    Response to rituximab + fludarabine

    Rituximab + fludarabine : progression-free survival

    Rituximab + fludarabine : overall survival

    Rituximab + fludarabine versus fludarabinein CLL

    FCR As Initial Therapy for CLL

    ? overall response rate of 95%

    * CR70%

    * PR15%

    * NPR 10%

    ? 4y TTF69%

    ? Grade 3 to 4 neutropenia52%

    FCR for Relapsed and Refractory CLL

    ? overall response rate 73%

    * CR25%

    * PR 32 %

    * Nodular PR 16 %

    ? Estimated OS 42m

    ? Grade 3 to 4 neutropenia62%

    CLL7 protocol of the GCLLSG/FCLLSG

    Patients at Binet stage A or B without symptoms

    Phase II trial of subcutaneous alemtuzumab in untreated CLL (n=41)

    ? Alemtuzumab 3-10-30 mg thrice weekly to 18 weeks

    ? Acyclovir, cotrimoxazole, fluconazole

    ? RR 81%, CR 19%

    * 95% CR in PB

    * 45% CR in BM (87% RR)

    * Node response in 87%

    ? TTF not reached at 18+ months

    ? Few first dose reactions

    Low-dose subcutaneous alemtuzumab for refractory CLL

    ? alemtuzumab (10 mg t.i.w. for 18 weeks)

    ? 50% response rate

    ? 25% complete response

    ? favourable toxicity profile

    Rituximab and alemtuzumab combination as salvage therapy in CLL

    Lumiliximab (IDEC-152)

    ? PRIMATIZED(r) monoclonal antibody

    ? Specifically binds to CD23

    ? Binds Fc?RI and Fc?RII and mediates ADCC

    ? Binds complement and mediates CDC

    Phase I trial of Lumiliximab (IDEC-152)

    ? Dose escalation: 125, 250, 375, 500mg/m2 weekly; 500 mg/m2 t.i.w. x 1 then weekly x 3; 500mg/m2 t.i.w. x 4

    ? Patients with progressive CLL; median 3 regimens

    ? Toxicities - fatigue, nausea, headache, cough

    ? DLT - neutropenia, headache

    ? Reduced lymphocytes in 24/25

    ? Nodes also decreased

    Hematopoietic Stem Cell Transplantation

    Autotransplantation

    Allotransplantation

    Non-myeloablative transplantation