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Defining the Intensity of Conditioning Regimens: Working Definitions

Open access
Bacigalupo, Andrea, Ballen, Karen, Rizzo, Doug, Giralt, Sergio, Lazarus, Hillard, Ho, Vincent, Apperley, Jane, Slavin, Shimon, Pasquini, Marcelo, Sandmaier, Brenda M., Barrett, John, Blaise, Didier, Lowski, Robert, Horowitz, Mary·2009·Biology of Blood and Marrow Transplantation

Abstract

Defining conditioning regimen intensity has become a critical issue for the hemopoietic stem cell transplant (HSCT) community. In the present report we propose to define conditioning regimens in 3 categories: (1) myeloablative (MA) conditioning, (2) reduced-intensity conditioning (RIC), and (3) nonmyeloablative (NMA) conditioning. Assignment to these categories is based on the duration of cytopenia and on the requirement for stem cell (SC) support: MA regimens cause irreversible cytopenia and SC support is mandatory. NMA regimens cause minimal cytopenia, and can be given also without SC support. RIC regimens do not fit criteria for MA or NMA regimens: they cause cytopenia of variable duration, and should be given with stem cell support, although cytopenia may not be irreversible. This report also assigns commonly used regimens to one of these categories, based upon the agents, dose, or combinations. Standardized classification of conditioning regimen intensities will allow comparison across studies and interpretation of study results.

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Crossref · 10.1016/j.bbmt.2009.07.004

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Metadata

Authors
Bacigalupo, A., Ballen, K., Rizzo, D., Giralt, S., Lazarus, H., Ho, V., Apperley, J., Slavin, S., Pasquini, M., Sandmaier, B. M., Barrett, J., Blaise, D., Lowski, R., & Horowitz, M.
Venue
Biology of Blood and Marrow Transplantation
Publisher
Elsevier BV
Published
2009-12
Volume
15
Issue
12
Pages
1628-1633
ISSN
1083-8791 (ISSN-L)
OpenAlex
W2152197116
Cited by
1,816
References
0
FWCI
21.40
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Defining the Intensity of Conditioning Regimens: Working Definitions. https://app.cochat.ai/papers/10.1016/j.bbmt.2009.07.004
The paper
Bacigalupo, A., Ballen, K., Rizzo, D., Giralt, S., Lazarus, H., Ho, V., Apperley, J., Slavin, S., Pasquini, M., Sandmaier, B. M., Barrett, J., Blaise, D., Lowski, R., & Horowitz, M. (2009). Defining the Intensity of Conditioning Regimens: Working Definitions. Biology of Blood and Marrow Transplantation. https://doi.org/10.1016/j.bbmt.2009.07.004

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.