RE: Addresable Market26 Feb 2018 12:05
Pomander,
Your addressable market estimate propagates the PLE/RP error of being based on lifetime prevalence ("have you ever suffered from PE"?) and prevalence ("do you suffer from PE"?).
Sales forecasts are based on accessible market (in this case, the % PE treatment seekers receiving pharmacotherapy).
There is reliable high-quality/high-resolution epidemiologcal data available for Germany and Italy, not so much for the other core countries. The % of men that admit to being bothered by their PE is 14.5% and 11.3% (higher in younger men, lower in older men) for Germany and Italy, respectively, or 3.67m and 2m individuals.
While these might seem decent sized pools to fish in, only 10% of "bothered" men actually seek treatment, and of these, around 70% end up with some form of drug treatment. That's less than 230,000 men in Germany and around 141,000 in Italy.
Estimating market share is unashamedly guesswork. Topicals make up 10-20% of first line prescribing and Fortacin is likely to displace off-label products to some extent. It's no better (or worse) than other PE treatments and as you rightly say, given the high discontinuation rate for oral meds, it should also pick up a share of second line prescribing. If I was knocking up an estimate for a client, I'd anchor my sensitivity analysis at around a 15% peak uptake, 8 full years to peak.
The obvious wild cards are ramp up (not reimbursed, so promotion sensitive and historically slow and no comparator study data to draw from), price sensitivity, time between scripts (will "not less than 12 doses" translate to two or three months usage?), and retention rates. The last two have a profound impact on return. On the plus side, Fortacin, as the first approved PE treatment to hit the European market in almost a decade might get some attention on novelty value alone and, in the longer term, should be safe from direct Rx competion.
Wholesale prices are Euro 49.94 and Euro 39.40 in Germany and Italy, respectively, should you want to play around with your own sales projections.
As to a "lifestyle" market, with the tight restrictions around DTC promotion in Europe, no internet prescribing permitted in the core territories, and a very narrow, predominantly secondary care prescriber base, what's the rationale for anticipated Rx expansion?