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

Phase I, pharmacokinetic, and biological study of erlotinib in combination with Paclitaxel and Carboplatin in patients with advanced solid tumors.

PURPOSE: To assess the feasibility of administering erlotinib, an inhibitor of epidermal growth factor receptor (EGFR) tyrosine kinase, in combination with paclitaxel and carboplatin, and to identify pharmacokinetic interactions, evaluate downstream effects of EGFR inhibition on surrogate tissues, and seek preliminary evidence for clinical activity. EXPERIMENTAL DESIGN: Patients with advanced solid malignancies were treated continuously with erlotinib at doses of 100, 125, and 150 mg/d orally along with fixed i.v. doses of paclitaxel 225 mg/m(2) and carboplatin AUC 6 mg.min/mL, both on day 1 every 3 weeks. RESULTS: Twenty evaluable patients were treated with 136 courses of erlotinib, paclitaxel, and carboplatin. Myelosuppression, skin rash, and diarrhea were the principal toxicities. Dose limiting diarrhea occurred in 1 of 6 patients at the 100 mg erlotinib dose level, whereas 0 of 9 evaluable patients at the 125 mg erlotinib dose level experienced dose limiting toxicity and 3 of 5 evaluable patients at 150 mg erlotinib experienced dose limiting skin rash and neutropenic sepsis. There was no evidence of pharmacokinetic interactions between paclitaxel and erlotinib; however, total carboplatin exposure trended higher in the presence of erlotinib. No consistent downstream effects on EGFR inhibition were found in skin. Durable objective responses were observed in non-small-cell lung and head and neck cancers. CONCLUSIONS: A dose level of erlotinib 125 mg combined with paclitaxel 225 mg/m(2) and carboplatin AUC 6 mg.min/mL is recommended for disease-directed studies. This phase I trial was followed by a randomized phase III study in non-small-cell lung cancer using a similar regimen.[1]

References

  1. Phase I, pharmacokinetic, and biological study of erlotinib in combination with Paclitaxel and Carboplatin in patients with advanced solid tumors. Patnaik, A., Wood, D., Tolcher, A.W., Hamilton, M., Kreisberg, J.I., Hammond, L.A., Schwartz, G., Beeram, M., Hidalgo, M., Mita, M.M., Wolf, J., Nadler, P., Rowinsky, E.K. Clin. Cancer Res. (2006) [Pubmed]
 
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