A drug interaction study was performed in which irinotecan was administered as part of the
FOLFIRI regimen with or without Avastin. The results demonstrated no significant effect of
bevacizumab on the pharmacokinetics of irinotecan or its active metabolite SN38.
In a randomized study in 99 patients with NSCLC, based on limited data, there did not appear to
be a difference in the mean exposure of either carboplatin or paclitaxel when each was administered
alone or in combination with Avastin. However, 3 of the 8 patients receiving Avastin plus
paclitaxel/carboplatin had substantially lower paclitaxel exposure after four cycles of treatment (at
Day 63) than those at Day 0, while patients receiving paclitaxel/carboplatin without Avastin had a
greater paclitaxel exposure at Day 63 than at Day 0.
In Study 8, there was no difference in the mean exposure of interferon alfa administered in
combination with Avastin when compared to interferon alfa alone.