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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

Mobilization of hematopoietic progenitor cells with paclitaxel (taxol) as a single chemotheraupetic agent, associated with rhG-CSF.

We assessed the mobilization capacity of taxol with rhG-CSF, both as a single chemotherapeutic agent and in the presence of cyclophosphamide (CY), and compared the effect with yields achieved when mobilization was performed solely with rhG-CSF. Fifteen patients with breast cancer received taxol 170 mg/m2 (continuous infusion, day 1) and rhG-CSF (8 microg/kg/day, from day 2 until the end of apheresis) (T-G group), while seven breast cancer patients were additionally treated with CY (4 g/m2) on day 2, followed by rhG-CSF starting at similar doses on day 3 (T-CY-G group). The PBSC collections after taxol with/without CY were compared with those of 30 breast cancer patients who had received rhG-CSF (8 microg/kg/day) for mobilization. No differences were found in the characteristics of patients included in any of the three mobilization groups. The median yield of CD34+ cells from all patients included in taxol containing schedules was 9 x 106/kg (range 2-26) collected with a median of one apheresis procedure (range 1-4). Leukaphereses began earlier in the T-G group (median day 8, range 7-10) than in the T-CY-G group (median day 13, range 11-17). In most patients (20 out of 22) who received taxol containing regimens, more than 2.5 x 106 CD34+ cells/kg, a threshold considered to be sufficient for hematopoietic reconstitution, were collected with a single apheresis. Those patients in the T-G group experienced less neutropenic and thrombocytopenic days, with all neutropenic fever episodes developing in patients treated with the T-CY-G schedule (43%). When considering priming with rhG-CSF alone in our historical cohort of 30 breast cancer patients, a significant detrimental effect was observed in comparison with taxol mobilizing schedules, in the number of aphereses performed, in the total yield CD34+cells and in the number of patients who achieved the target dose of 2.5 x 106/kg CD34+ cells within the first collection procedure. We conclude that taxol containing schedules are effective in mobilizing PBSC and facilitate the collection of high yields of CD34+ cells (usually more than 5 x 106/kg recipient body weight) with a reduced number of apheresis procedures. Taxol, as a single agent with rhG-CSF, exhibits less hematological toxicity than the combination chemotherapy mobilization regimen including CY. Bone Marrow Transplantation (2000) 25, 231-235.[1]

References

  1. Mobilization of hematopoietic progenitor cells with paclitaxel (taxol) as a single chemotheraupetic agent, associated with rhG-CSF. Gómez-Espuch, J., Moraleda, J.M., Ortuño, F., Lozano, M.L., Ayala, F., Vallejo, C., de Arriba, F., Vicente, V. Bone Marrow Transplant. (2000) [Pubmed]
 
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