Sorry to hear about your husband.
I hope the photodyamic therapy works. I should state I have no experience with this but what I have read is that it is often used for palliative treatment, that is to ease pain or other discomfort but is not a recognised treatment that may extend survival. Again that is my reading of PDT, I could be wrong.
Is there any chance your husband could enter a clinical trial in the UK for Avastin. I don't believe Avastin is approved yet in the UK. I am being treated at Duke and I keep hearing how Avastin has made such a huge difference in their approach to treating patients with cancer. I think everyone at Duke is on Avastin just about.
Since I have 4 different drugs it is hard to know what combination or which one is effective--gemzar, oxaliplaten, avastin and Tarceva. As I mentioned, I don't believe either avastin or Tarceva are approved and marketed in the UK yet, but I may be wrong.
Let us know what you find out about PDT and how your husband is doing.
I will be thinking about both of you and keeping my fingers crossed.