Difference between revisions of "Tositumomab and I-131 (Bexxar)"
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==General information== | ==General information== | ||
| − | Class/mechanism: Radioimmunotherapy; treatment regimen that includes two separate steps: first, a dosimetric dose with an anti-CD20 antibody (tositumomab) alone, and second, a therapeutic dose with tositumomab bound to a radioactive isotope, iodone-131 (I-131). Tositumomab binds to the extracellular domain of the CD20 molecule expressed on B-cells and may induce complement-dependent and/or antibody-dependent cell | + | Class/mechanism: Radioimmunotherapy; treatment regimen that includes two separate steps: first, a dosimetric dose with an anti-CD20 antibody (tositumomab) alone, and second, a therapeutic dose with tositumomab bound to a radioactive isotope, iodone-131 (I-131). Tositumomab binds to the extracellular domain of the CD20 molecule expressed on B-cells and may induce complement-dependent cytotoxicity (CDC) and/or antibody-dependent cell mediated cytotoxicity (ADCC). The I-131 that is bound to tositumomab emits ionizing radiation, leading to cell death.<ref name="insert">[http://us.gsk.com/products/assets/us_bexxar.pdf Tositumomab and I-131 (Bexxar) package insert]</ref><ref>[http://hemonc.org/docs/packageinsert/tositumomabI131.pdf Tositumomab and I-131 (Bexxar) package insert (locally hosted backup)]</ref> |
<br>Route: IV | <br>Route: IV | ||
<br>Extravasation: no information | <br>Extravasation: no information | ||
Revision as of 03:37, 26 February 2012
Also known as tositumomab and I-131 tositumomab, or tositumomab and iodine-131 tositumomab.
General information
Class/mechanism: Radioimmunotherapy; treatment regimen that includes two separate steps: first, a dosimetric dose with an anti-CD20 antibody (tositumomab) alone, and second, a therapeutic dose with tositumomab bound to a radioactive isotope, iodone-131 (I-131). Tositumomab binds to the extracellular domain of the CD20 molecule expressed on B-cells and may induce complement-dependent cytotoxicity (CDC) and/or antibody-dependent cell mediated cytotoxicity (ADCC). The I-131 that is bound to tositumomab emits ionizing radiation, leading to cell death.[1][2]
Route: IV
Extravasation: no information
For conciseness and simplicity, HemOnc.org currently will focus on treatment regimens and not list information such as: renal/hepatic dose adjustments, metabolism (including CYP450), excretion, monitoring parameters (although this will be considered for checklists), or manufacturer. Instead, for the most current information, please refer to your preferred pharmacopeias such as Micromedex, Lexicomp, UpToDate (courtesy of Lexicomp), or the prescribing information[1].
Patient drug information
- Tositumomab and I-131 (Bexxar) patient drug information (Chemocare)[3]
- Tositumomab and I-131 (Bexxar) patient drug information (UpToDate)[4]