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خرید پکیج
تعداد آیتم قابل مشاهده باقیمانده : 3 مورد
نسخه الکترونیک
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Weekly paclitaxel for unresectable angiosarcoma[1]

Weekly paclitaxel for unresectable angiosarcoma[1]
Cycle length: 28 days.
Drug Dose and route Administration Given on days
Paclitaxel 80 mg/m2 IV Dilute in 250 mL normal saline or 5% dextrose in water (D5W)* and administer over one hour; special tubing needed. Days 1, 8, and 15
Pretreatment considerations:
Emesis risk
  • LOW (10 to 30% frequency of emesis).
  • Refer to UpToDate topics on prevention of chemotherapy-induced nausea and vomiting in adults.
Prophylaxis for infusion reactions
  • Premedicate with dexamethasone plus both an H1 and an H2 receptor antagonist prior to paclitaxel administration.[2]
  • Refer to UpToDate topics on infusion reactions to systemic chemotherapy.
Vesicant/irritant properties
  • Paclitaxel can cause significant tissue damage; avoid extravasation.
  • Refer to UpToDate topics on extravasation injury from chemotherapy and other non-antineoplastic vesicants.
Infection prophylaxis
  • Primary prophylaxis with G-CSF is not generally warranted except in highest risk patients. In the original publication, febrile neutropenia was observed in only 2 of 30 patients during the first two cycles.[1]
  • Refer to UpToDate topics on use of granulocyte colony stimulating factors in adult patients with chemotherapy-induced neutropenia and conditions other than acute leukemia, myelodysplastic syndrome, and hematopoietic cell transplantation.
Dose adjustment for baseline liver or renal dysfunction
  • A lower starting dose of paclitaxel may be needed in patients with liver impairment.
  • Refer to UpToDate topics on chemotherapy hepatotoxicity and dose modification in patients with liver disease, conventional cytotoxic agents and chemotherapy hepatotoxicity and dose modification in patients with liver disease, molecularly targeted agents.
Monitoring parameters:
  • CBC with differential prior to treatment weekly during each cycle.
  • Assess serum electrolytes prior to treatment weekly during each cycle.
  • Assess renal and liver function prior to treatment weekly during each cycle.
  • Assess for neurologic toxicity prior to each treatment.
Suggested dose modifications for toxicity:
Myelotoxicity
  • In the original protocol, new cycles were not started unless granulocyte count was >1500 cells/microL and platelets >100,000/microL.[1] For grade 3 or 4 toxicity, the weekly paclitaxel dose was reduced to 70 mg/m2, and then to 60 mg/m2 for a second episode of toxicity.[1]
Peripheral neuropathy
  • The development of severe symptomatic peripheral neuropathy requires a dose reduction of 20% for all subsequent courses of paclitaxel or may be cause for discontinuation of paclitaxel therapy.[2]
Other toxicity
  • For any other grade 3 or 4 toxicity, paclitaxel dose was reduced to 70 mg/m2 and then to 60 mg/m2 for a second episode of that toxicity.[1]
If there is a change in body weight of at least 10%, doses should be recalculated.
This table is provided as an example of how to administer this regimen; there may be other acceptable methods. This regimen must be administered by a clinician trained in the use of chemotherapy, who should use independent medical judgment in the context of individual circumstances to make adjustments, as necessary.
IV: intravenous; G-CSF: granulocyte-colony stimulating factors; CBC: complete blood count.
* Diluent solutions should not be modified without consulting a detailed reference due to potential incompatibility(ies).
¶ Paclitaxel can be administered in normal saline, D5W, or normal saline/D5W at varying concentrations between 0.3 to 1.2 mg/mL. Use glass or polypropylene bottles or polypropylene or polyolefin plastic bags, and administer through polyethylene-lined administration sets with a microporous membrane 0.22 microns or less.
References:
  1. Penel N, et al. J Clin Oncol 2008; 26:5269.
  2. Paclitaxel injection. United States Prescribing Information. US National Library of Medicine. (Available online at www.dailymed.nlm.nih.gov, accessed May 20, 2013).
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