Zaf­gen's sec­ond try at Prad­er-Willi syn­drome trig­gers an­oth­er safe­ty alarm in pre­clin­i­cal tox study

Zaf­gen’s $ZFGN lat­est shot at cre­at­ing the first ther­a­py to treat pa­tients with rare cas­es of obe­si­ty brought on by Prad­er-Willi syn­drome has hit a safe­ty alarm be­fore the drug even man­aged to make it in­to the clin­ic.

The suc­ces­sor to be­lo­ranib — which blew up with spec­tac­u­lar ef­fect sev­er­al years ago fol­low­ing a clin­i­cal hold by the FDA — ZGN-1258 was sup­posed to be the biotech’s come­back drug in the field. In­stead, the biotech re­port­ed af­ter the mar­ket closed on Mon­day that it is sus­pend­ing plans for an IND af­ter re­searchers tracked mus­cle de­te­ri­o­ra­tion in a ro­dent mod­el of the dis­ease.

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