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ISRN Oncol. 2012;2012:176789. doi: 10.5402/2012/176789. Epub 2012 May 14.

Gefitinib in Combination with Weekly Docetaxel in Patients with Metastatic Breast Cancer Caused Unexpected Toxicity: Results from a Randomized Phase II Clinical Trial.

ISRN oncology

Olav Engebraaten, Hege Edvardsen, Erik Løkkevik, Bjørn Naume, Vessela Kristensen, Lars Ottestad, Vasanti Natarajan

Affiliations

  1. Department of Oncology, Oslo University Hospital, 0424 Oslo, Norway.

PMID: 22666610 PMCID: PMC3361199 DOI: 10.5402/2012/176789

Abstract

In patients with metastatic breast cancer, taxane treatment demonstrates activity but is not curative. Targeted treatment modalities are therefore necessary in order to improve outcomes in this group. A randomized placebo-controlled phase II trial was initiated to evaluate effect and toxicity of gefitinib (250 mg QD) and docetaxel 35 mg/m(2) (six of seven weeks) (NCT 00319618). The inclusion of 66 patients was planned. The study was closed due to treatment-related toxicity. Of the 18 included patients, seven (of which three received gefitinib) were withdrawn from the study due to toxicity. Of the nine patients receiving gefitinib and chemotherapy, one achieved a partial response and four stable disease. In the chemotherapy of nine patients, four had a partial response and four stable disease. The breast cancer patients in this study were genotyped using a panel of 14 single-nucleotide polymorphisms (SNPs), previously found associated with docetaxel clearance in a cohort of lung cancer patients. We were unable to identify genes related to toxicity in this study. Nevertheless, toxicity was aggravated by the addition of the tyrosine kinase inhibitor. In conclusion, despite adequately tolerated as monotherapy, combination regimens should be carefully considered for overlapping adverse events in order to avoid increased treatment-related toxicity.

References

  1. J Clin Oncol. 1999 May;17(5):1413-24 - PubMed
  2. Pharmacogenet Genomics. 2006 Mar;16(3):207-17 - PubMed
  3. Cancer Res. 1996 Jan 1;56(1):58-65 - PubMed
  4. Lancet. 2007 Jan 6;369(9555):29-36 - PubMed
  5. Clin Cancer Res. 2001 May;7(5):1459-65 - PubMed
  6. Br J Cancer. 2006 Jun 5;94(11):1604-9 - PubMed
  7. J Clin Oncol. 2001 Aug 1;19(15):3500-5 - PubMed
  8. Breast Cancer Res Treat. 2005 Jan;89(2):165-72 - PubMed
  9. J Clin Oncol. 2008 May 20;26(15):2450-6 - PubMed
  10. J Natl Cancer Inst. 2006 Dec 6;98(23):1714-23 - PubMed
  11. J Clin Oncol. 2000 Mar;18(6):1212-9 - PubMed
  12. Pac Symp Biocomput. 2003;:548-61 - PubMed
  13. Lancet. 2012 Feb 4;379(9814):390-2 - PubMed
  14. Clin Pharmacol Ther. 2006 Jun;79(6):570-80 - PubMed
  15. Oncologist. 2005 Oct;10(9):665-85 - PubMed
  16. J Clin Oncol. 2005 Sep 1;23(25):6117-25 - PubMed
  17. Stat Med. 2001 Apr 15;20(7):1051-60 - PubMed
  18. Int J Radiat Oncol Biol Phys. 2008 May 1;71(1):226-36 - PubMed
  19. Ann Oncol. 2001 Oct;12(10):1393-8 - PubMed
  20. Cancer. 2010 Mar 1;116(5):1234-42 - PubMed
  21. Breast Cancer Res Treat. 2009 May;115(1):115-21 - PubMed
  22. J Clin Oncol. 2007 Apr 20;25(12):1545-52 - PubMed
  23. Drug Saf. 2004;27(14):1081-92 - PubMed
  24. J Clin Oncol. 2005 Sep 1;23(25):5892-9 - PubMed
  25. Clin Chim Acta. 2009 Jun 27;404(2):160-5 - PubMed
  26. J Clin Oncol. 2004 Mar 1;22(5):785-94 - PubMed
  27. J Clin Oncol. 2005 Aug 20;23(24):5552-9 - PubMed
  28. Clin Pharmacol Ther. 2009 Feb;85(2):155-63 - PubMed
  29. Clin Cancer Res. 2005 Feb 15;11(4):1408-15 - PubMed
  30. Breast Cancer Res Treat. 2008 Dec;112(3):533-43 - PubMed
  31. N Engl J Med. 2006 Dec 28;355(26):2733-43 - PubMed
  32. N Engl J Med. 2005 Oct 20;353(16):1659-72 - PubMed
  33. Eur J Cancer. 1999 Aug;35(8):1194-201 - PubMed
  34. J Clin Oncol. 2004 Mar 1;22(5):777-84 - PubMed
  35. N Engl J Med. 2001 Mar 15;344(11):783-92 - PubMed
  36. Invest New Drugs. 2007 Dec;25(6):545-51 - PubMed
  37. Clin Cancer Res. 2000 Dec;6(12):4885-92 - PubMed
  38. J Clin Oncol. 2005 Aug 10;23(23):5323-33 - PubMed
  39. DNA Repair (Amst). 2008 Feb 1;7(2):141-8 - PubMed
  40. Pharmacogenomics J. 2010 Dec;10(6):513-23 - PubMed

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