Enanta Pharmaceuticals Inc (NASDAQ: ENTA) was rated at Equal-weight with a $35 price target. The firm forecasted "peak WW Viekira Pak sales of $2.5B and see limited room for upside given increasing competition in hep C."
**IMS data for the week ending 2/27/15, the week after President's Week, became available early this afternoon. **Harvoni NRx, what we view as the most important measure of uptake, were approximately flat again this week, at 4,132 vs.4,154 last week. Given the stability in scrips during last week's holiday week, we had not expected a major bounceback. TRxwere 9,553, above last week's 8,859. **Sovaldi NRx bounced back slightly, at 705, we believe continuing to reflect steadystate in the GT2/3 population at around$3B in U.S. revenues. **Projecting out for 2015, assuming new patient starts remain flat to slightly down the rest of this quarter (accounting for thecurrent runrate), and decline at a rate of 1.2% throughout the rest of the year, GILD's global HCV sales would be tracking ataround $17B for the year ($10.6B U.S. Harvoni + $3.1B U.S. Sovaldi + $3.2B exU.S. HCV sales), which we believe is aboveconsensus. This assumes that IMS captures ~68% of actual patient use, as per our estimated tracking from 4Q14; this is a keyvariable. **BOTTOM LINE: Steady HCV as access likely broadens, suggesting reasonable sustainability for a HCV franchise we believeGILD's current price undervalues.