PKC-412 is a broad spectrum protein kinase inhibitor. Inhibits conventional PKC isoforms (α, β, γ), PDFRβ, VEGFR2, Syk, PKCη, Flk-1, Flt3, Cdk1/B, PKA, c-Kit, c-Fgr, c-Src, VEGFR1 and EGFR. Displays potent antitumor activity.

PKI-587 is a highly potent dual PI3K/mTOR kinase inhibitor with IC50 of 0.4 nM and <0.1 μM for PI3K-α and mTOR, respectively.

Plerixafor is a chemokine receptor antagonist for CXCR4 and CXCL12-mediated chemotaxis with IC50 of 44 nM and 5.7 nM, respectively.

PLX3397 is a tyrosine kinase inhibitor that potently inhibits the colony stimulating factor 1 (CSF1) receptor kinase, a driving force in the development and growth of PVNS.

PLX4032 (Vemurafenib, RG7204, Zelboraf, RO5185426) is a novel and potent inhibitor of B-RafV600E with IC50 of 31 nM.

PLX4720 is a potent and selective inhibitor of B-RafV600E with IC50 of 13 nM, equally potent to c-Raf-1(Y340D and Y341D mutations), 10-fold selectivity for B-RafV600E than wild-type B-Raf.

PLX51107 is a novel BET inhibitor with a unique binding mode in the acetylated lysine binding pocket of BRD4 that differentiates it from other compounds under investigation.

Poziotinib, is an orally bioavailable, quinazoline-based pan epidermal growth factor receptor (EGFR or HER) inhibitor with potential antineoplastic activity.

Pracinostat(SB939) is a potent pan-HDAC inhibitor with IC50 of 40-140 nM with exception for HDAC6; has no activity against the class III isoenzyme SIRT I.

Pralatrexate(Folotyn) is an antifolate, and structurally a folate analog.

PRIMA-1 is a mutant p53 reactivator, restores the sensitivity of TP53 mutant-type thyroid cancer cells to the histone methylation inhibitor 3-Deazaneplanocin A.

PRIMA-1MET is methylated derivative of PRIMA-1. It can restore mutant p53 activity.

PRN1371 is an irreversible covalent FGFR1-4 kinase inhibitor, with IC50s of 0.6, 1.3, 4.1, 19.3 and 8.1 nM for FGFR1, 2, 3, 4 and CSF1R, respectively.

PT2385 is an orally active, small molecule inhibitor of hypoxia inducible factor (HIF)-2alpha, with potential antineoplastic activity.

PX-478 is an inhibitor of HIF-1a with an IC50 of 20-30μM enhances radiosensitivity of prostate carcinoma cells.

Quarfloxin (CX-3543) is a fluoroquinolone derivative with antineoplastic activity.

Quizartinib (AC220) is a second-generation FLT3 inhibitor for Flt3(ITD/WT) with IC50 of 1.1 nM/4.2 nM, 10-fold more selective for Flt3 than KIT, PDGFRα, PDGFRβ, RET, and CSF-1R. Phase 1/2.

R547 is a potent and selective CDK inhibitor with Ki and IC50 of 1-3 nM and 80 nM respectively.

RAF265 (CHIR-265) is a highly selective B-Raf and VEGFR2 inhibitor with IC50 of 3-60 nM and EC50 of 30 nM, including B-Raf, C-Raf and mutant B-Raf.

Raltitrexed(ZD1694), an inhibitor of thymidylate synthase, is an antimetabolite drug used in cancer chemotherapy.

Refametinib (RDEA119, Bay 86-9766) is a potent, ATP non-competitive and highly selective inhibitor of MEK1 and MEK2 with IC50 of 19 nM and 47 nM, respectively.

Regorafenib (BAY 73-4506) is a multi-target inhibitor for VEGFR1, VEGFR2, VEGFR3, PDGFRβ, Kit, RET and Raf-1 with IC50 of 13 nM/4.2 nM/46 nM, 22 nM, 7 nM, 1.5 nM and 2.5 nM, respectively.