RBN-3143 is a potent inhibitor of NAD+-competitive catalytic PARP14 (IC50= 4 nM), which inhibits ADP-ribosylation mediated by PARP14 and stabilizes PARP14 in cell lines, demonstrating research potential for lung inflammation.

Rucaparib Camsylate is a PARP inhibitor (PARP1,Ki of 1.4 nM). Rucaparib Camsylate also displays binding affinity to eight other PARP domains. Rucaparib is the most effective PARP inhibitor in enzyme assays (Ki: 1.4 nM). Rucaparib inhibits PARP-1 activity by 97.1% at a concentration of 1 μM in permeabilized D283Med cells.

KSQ-4279 (USP1-IN-1) is an inhibitor of USP1 and PARP, exhibiting anticancer activity. It is utilized in the study of non-small cell lung cancer, osteosarcoma, ovarian, breast, glioblastoma, bladder, uterine, and pancreatic cancers.