Ax­some re­ports late-stage de­pres­sion tri­al de­feat, shares wilt

Months af­ter re­port­ing its ex­per­i­men­tal drug cleared a late-stage study in ma­jor de­pres­sive dis­or­der, Ax­some Ther­a­peu­tics un­veiled da­ta from a piv­otal study in treat­ment-re­sis­tant de­pres­sion that showed the drug failed to meet the main goal.

In gen­er­al, tri­als test­ing de­pres­sion drugs are no­to­ri­ous­ly tricky and prone to fail­ure, in ma­jor part due to high rates of the place­bo ef­fect. Ex­ist­ing an­ti­de­pres­sants of­ten take weeks to kick in, and typ­i­cal­ly work on­ly in some pa­tients. This tri­al test­ed the ther­a­py in pa­tients who had failed to ben­e­fit from two or three pri­or treat­ments.

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