Acer,
With all due respect, your doctor is painting a rosy picture - people who progress from HTLV infection to cancer usually die within a few months. The treatment is nowhere near as successful as it needs to be, and no such thing as complete remission exists for these patients - they basically ping-pong from being treated to getting sick again, and die very soon afterwards. Unfortunately the medical community's denial that HTLV is a serious illness is why so many people are in wheelchairs and six feet under. If and when they decide to treat HTLV like the disease that it really is, they will use demethylating agents (e.g. azacytidine awakens infected cells), HDAC inhibitors (e.g. valproic acid purges viral reservoirs), and NF-kB inhibitors (BMS-345541 and Purvalanol A interferes with Tax protein expression). The compounds that you mentioned are less effective and more toxic; furthermore, consider that they are archaic for the treatment of HIV patients, so why use them for HTLV patients?
Best wishes.