Af­ter thy­roid eye drug scores in PhI­II test, Hori­zon Phar­ma read­ies mar­ket­ing ap­pli­ca­tion

Less than two years af­ter Hori­zon Phar­ma $HZNP pro­cured phase III-ready thy­roid eye dis­ease (TED) drug tepro­tu­mum­ab for $145 mil­lion up­front by ac­quir­ing a unit of Nar­row Riv­er, biotech vet­er­an David Mad­den’s in­vest­ment firm — the bet has paid off, as the au­toim­mune in­flam­ma­to­ry dis­or­der drug passed its late-stage test on Thurs­day.

In TED pa­tients, the eye mus­cles and fat­ty tis­sue be­hind the eye be­come in­flamed, caus­ing the eyes to ap­pear to be ‘bulging’ and eye­lids to be­come swollen and red, even­tu­al­ly cul­mi­nat­ing in eye mis­align­ment, dou­ble vi­sion and in some cas­es even blind­ness — but there is lim­it­ed win­dow of up to three years dur­ing which the con­di­tion can be treat­ed with­out sur­gi­cal in­ter­ven­tion.

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