Tril­li­um is hunt­ing gi­ants with its an­ti-CD47 drug, but ques­tions over a high-dose so­lo reg­i­men still linger

CD47 play­er Tril­li­um Ther­a­peu­tics re­leased a new slate of da­ta for two of its ex­per­i­men­tal can­cer drugs on Wednes­day, up­dat­ing pre­vi­ous­ly re­leased re­sults from last win­ter’s ASH con­fer­ence. But even though high­er dos­es of the pro­grams were ad­min­is­tered since then, the over­all re­sponse rates stayed rough­ly the same.

As of the new April 12 da­ta cut­off for the lead TTI-622 pro­gram, 9 of 27 evalu­able pa­tients with re­lapsed or re­frac­to­ry lym­phoma record­ed an ob­jec­tive re­sponse, good for a 33% ORR. That rate fell slight­ly from the ASH da­ta cut­off, where 6 of 17 evalu­able pa­tients saw re­spons­es, or 35%. One new com­plete re­sponse and two new par­tial re­spons­es were ob­served at the two high­est dos­es since the ASH up­date, Tril­li­um said.

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