Book contents
- Frontmatter
- Contents
- List of contributors
- Preface
- Part I History and general issues
- Part II Cell biology and pathobiology
- Part III Evaluation and treatment
- 14 Pharmacokinetic, pharmacodynamic, and pharmacogenetic considerations
- 15 Assays and molecular determinants of cellular drug resistance
- 16 Acute lymphoblastic leukemia
- 17 Relapsed acute lymphoblastic leukemia
- 18 B-cell acute lymphoblastic leukemia and Burkitt lymphoma
- 19 Acute myeloid leukemia
- 20 Relapsed acute myeloid leukemia
- 21 Myelodysplastic syndrome
- 22 Chronic myeloproliferative disorders
- 23 Hematopoietic stem cell transplantation
- 24 Acute leukemia in countries with limited resources
- 25 Antibody-targeted therapy
- 26 Adoptive cellular immunotherapy
- 27 Gene transfer: methods and applications
- 28 Minimal residual disease
- Part IV Complications and supportive care
- Index
- Plate Section between pages 400 and 401
- References
17 - Relapsed acute lymphoblastic leukemia
from Part III - Evaluation and treatment
Published online by Cambridge University Press: 01 July 2010
- Frontmatter
- Contents
- List of contributors
- Preface
- Part I History and general issues
- Part II Cell biology and pathobiology
- Part III Evaluation and treatment
- 14 Pharmacokinetic, pharmacodynamic, and pharmacogenetic considerations
- 15 Assays and molecular determinants of cellular drug resistance
- 16 Acute lymphoblastic leukemia
- 17 Relapsed acute lymphoblastic leukemia
- 18 B-cell acute lymphoblastic leukemia and Burkitt lymphoma
- 19 Acute myeloid leukemia
- 20 Relapsed acute myeloid leukemia
- 21 Myelodysplastic syndrome
- 22 Chronic myeloproliferative disorders
- 23 Hematopoietic stem cell transplantation
- 24 Acute leukemia in countries with limited resources
- 25 Antibody-targeted therapy
- 26 Adoptive cellular immunotherapy
- 27 Gene transfer: methods and applications
- 28 Minimal residual disease
- Part IV Complications and supportive care
- Index
- Plate Section between pages 400 and 401
- References
Summary
Introduction
With current treatment, event-free survival rates in acute lymphoblastic leukemia (ALL) are about 75%. Therefore, relapse of ALL is still frequent with an incidence range close to that of neuroblastoma. Problems in the management of ALL relapse are the resistance of the leukemic cells and the reduced tolerance of patients to a second round of treatment after having already received intensive frontline therapy, resulting in a lower remission rate as well as a higher incidence of subsequent relapse and an inferior outcome overall.
Intensified polychemotherapy is essential for induction of a second complete remission (CR). Depending on a variety of prognostic factors, remission may be maintained with chemotherapy and cranial irradiation alone or with intensification of treatment by stem cell transplantation.
Diagnosis of relapse
The diagnosis of ALL relapse (i.e. the reappearance of leukemic cells in any anatomic compartment following CR) must be unequivocal. The work-up includes a careful physical examination as well as investigations of the bone marrow (BM), the cerebrospinal fluid (CSF) and, if necessary, biopsies of other involved sites (e.g. the testicles, lymph nodes or any other organs or tissues). As at initial diagnosis, the leukemic cells have to be characterized morphologically and by immunophenotyping, as well as by cytogenetic and molecular genetic procedures. Only this comprehensive information, together with clinical findings, allows one to classify the leukemic subtype adequately and to assess the prognosis of individual patients.
- Type
- Chapter
- Information
- Childhood Leukemias , pp. 473 - 486Publisher: Cambridge University PressPrint publication year: 2006
References
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