Cottu, Paul H Phase I study of onapristone, a type I antiprogestin, in female patients with previously treated recurrent or metastatic progesterone receptor-expressing cancers. [electronic resource] - PloS one 2018 - e0204973 p. digital Publication Type: Clinical Trial, Phase I; Journal Article; Multicenter Study; Randomized Controlled Trial; Research Support, Non-U.S. Gov't ISSN: 1932-6203 Standard No.: 10.1371/journal.pone.0204973 doi Subjects--Topical Terms: AdultAgedAged, 80 and overAntineoplastic Agents--adverse effectsBiomarkers, Tumor--metabolismBreast Neoplasms--drug therapyDelayed-Action PreparationsFemaleGonanes--adverse effectsHalf-LifeHumansMiddle AgedNausea--etiologyNeoplasm MetastasisNeoplasm Recurrence, LocalReceptors, Progesterone--metabolism