- Patients with a history of grade 3 or 4 allergic reactions attributed to compounds of similar chemical or biologic composition to the agents used in the study are ineligible; patients with a history of severe Cremophor reactions should be excluded; patients who experienced grade 1 or 2 hypersensitivity reactions to prior trastuzumab or taxane therapies are eligible IF these reactions did not prevent previous administration of such agents; patients who were deemed inappropriate candidates for trastuzumab or taxane-based treatments based on their hypersensitivity reactions are not eligible