PARP1 and prostate cancer: Preliminary reports utilizing several Auger-emitting theranostic tracers, such as 123I-MAPi (Iodine-123 Meitner-Auger PARP1 inhibitor) and the already cited 125I-KX1 provided encouraging results in tumors other than prostate cancer, such as glioblastoma multiforme and neuroblastoma [94].