If I had to guess, 3 X a week means every other day, with 2 days off. Beyond that, I'd rather not speculate before looking at the protocol. Yesterday's PR did seem to imply that they were looking to keep blood plasma levels at or above a therapeutic minimum for the entire period of treatment.
Also, I want to point out that an oral version could mean long term maintenance much like Abacavir against HIV, but with greater safety and the elimination of injection site inflammation, an adverse event noted in previous reports.
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