NEW YORK (GenomeWeb) – Following publication of a landmark study involving Tesaro's PARP inhibitor niraparib and Myriad Genetics' myChoice HRD test, Myriad's stock tumbled around 12 percent in Monday afternoon trading.

This past weekend, researchers led by Mansoor Mirza of Copenhagen University Hospital in Denmark presented data from the NOVA trial at a European oncology conference, which compared Tesaro's PARP inhibitor niraparib against placebo in 553 patients with recurrent ovarian cancer who had responded to platinum-based chemotherapy.