FDA or­ders clin­i­cal hold on Aprea's p53 re­ac­ti­va­tor as strug­gling biotech pledges to ad­dress safe­ty con­cerns

Lit­tle Aprea Ther­a­peu­tics just tripped yet again on its rocky path to de­vel­op a drug that can re­ac­ti­vate the mu­tant tu­mor sup­pres­sor pro­tein p53.

The Boston-based biotech said the FDA has placed a par­tial clin­i­cal hold on its tri­als of eprene­tapopt, where the drug is com­bined with the chemo azac­i­ti­dine as an ex­per­i­men­tal treat­ment for mul­ti­ple myeloid ma­lig­nan­cies.

While Aprea didn’t spec­i­fy the rea­son for the hold or what ex­act ques­tions the agency is ask­ing, CEO Chris­t­ian Schade hint­ed in a state­ment it has to do with tox­i­c­i­ty con­cerns.

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