time for new treatment plan-is xeloda still effective?

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With a reoccurrence to lungs, I have been on xeloda since May. Orignial treatment for stage IIIC was neoadjuvant TEC(taxotere)/x4, then lumpec + SNB (negative), then TEC/x2, followed by radiation and 3 months of navelbine/herceptin preventatively. Reoccurrence in < year in lymph nodes. Had complete axilla dissection, then 3 months of taxotere/herceptin. Reoccurrence towards end of treatment, with nodes in lungs.

I am paritcipating in the xeloda with or without lapatinib clinical trial, in which I drew the arm only getting xeloda. Initial scans in xeloda treatment plan were great - last 2, though, have shown minimal, but progression, of some measured areas. I need to evaluate whether to stay on xeloda, or concede it is not working, or perhaps add another chemo to the mix. Any thoughts on options?

Shell