Abstract
Pharmacokinetic analysis of carboplatin dosing suggests a more accurate prediction of toxicity when the dose is based on the area under the plasma concentration vs time curve (AUC) instead of body surface area (BSA). We retrospectively calculated the carboplatin AUC of 117 patients who received an autologous stem cell transplant following a conditioning regimen consisting of carboplatin 1800 mg/m2 and cyclophosphamide 6000 mg/m2 to identify whether higher carboplatin exposure resulted in an increase in regimen-related non-hematologic toxicities. The most common non-hematologic toxicities were gastrointestinal and hepatic. Twenty (17%) patients experienced additional ⩾grade 2 toxicity, specifically, renal toxicity significantly associated with a higher median AUC of 10.2 mg/ml−1 min (P = 0.001). Prior platinum therapy was also significantly associated with toxicity (P = 0.052). While carboplatin dose based on BSA varied minimally (median 990 (range 450–1340) mg, the calculated AUC showed a near four-fold range of exposure (median 7.8 (range 3.6 to 13.8) mg/ml−1 min). These data suggest a relationship between non-hematologic adverse events and the estimated AUC. Prospective trials will be necessary to identify the target carboplatin AUC which optimizes outcome and minimizes toxicity in the autologous transplant setting.
Bone Marrow Transplantation (2002) 29, 467–472. doi:10.1038/sj.bmt.1703417
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Colby, C., Koziol, S., McAfee, S. et al. High-dose carboplatin and regimen-related toxicity following autologous bone marrow transplant. Bone Marrow Transplant 29, 467–472 (2002). https://doi.org/10.1038/sj.bmt.1703417
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DOI: https://doi.org/10.1038/sj.bmt.1703417
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