rhuMAb HER2 is well tolerated and clinically active in patients with HER2-overexpressing metastatic breast cancers that had received extensive prior therapy. This is evidence that targeting growth factor receptors can cause regression of human cancer and justifies further evaluation of this agent.
The use of rhuMAb HER2 in combination with CDDP in patients with HER2/neu-overexpressing metastatic breast cancer results in objective clinical response rates higher than those reported previously for CDDP alone, or rhuMAb HER2 alone. In addition, the combination results in no apparent increase in toxicity. Finally, the pharmacology of rhuMAb HER2 was unaffected by coadministration with CDDP.
BOF-A2 at a dose of 200 mg PO bid for 14 days followed by 7 days of rest is well tolerated. Prolonged exposure to 5-FU above the predicted preclinical minimum effective concentration is maintained, without evidence of circadian variation. Furthermore, evidence of antitumor activity is suggested.
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