PKIDB: A Curated, Annotated and Updated Database of Protein Kinase Inhibitors in Clinical Trials

Ceralasertib, also known as AZD6738, is an orally available morpholino-pyrimidine-based inhibitor of ataxia telangiectasia and rad3 related (ATR) kinase, with potential antineoplastic activity. Upon oral administration, ATR kinase inhibitor Ceralasertib selectively inhibits ATR activity by blocking the downstream phosphorylation of the serine/threonine protein kinase CHK1. This prevents ATR-mediated signaling, and results in the inhibition of DNA damage checkpoint activation, disruption of DNA damage repair, and the induction of tumor cell apoptosis.

Parsaclisib (INCB050465) is a PI3Kδ inhibitor that was developed by Incyte Corporation as an antineoplastic and immunomodulatory agent, as claimed in their patent WO2014134426A1 [1]. The chemical structure is one of those claimed in patent WO2013033569A1, but it is not clear which example it is from a mixture of diastereoisomers 345-348 (although 347 and 348 had the highest inhibitory potency vs. PI3Kδ and 347 was tested in vivo [2].

Amuvatinib is a selective multi-targeted tyrosine kinase inhibitor that suppresses c-MET, c-RET and the mutant forms of c-KIT, PDGFR and FLT3. Amuvatinib also suppresses Rad51 protein, a critical comp\nonent of double-stranded DNA repair in cancer cells.

Bimiralisib (PQR309) is a novel dual inhibitor of phosphoinositol 3-kinase (PI3K) and mechanistic target of rapamycin (mTOR) kinases, with expected utility as an anti-cancer agent.

Dilmapimod has been used in trials studying the treatment and diagnostic of Nerve Trauma, Inflammation, Pain, Neuropathic, Arthritis, Rheumatoid, and Coronary Heart Disease, among others.

Tomivosertib, also known as eFT508 is a MNK1/2 inhibitor. Tomivosertib binds to and inhibits the activity of MNK1 and 2. This prevents MNK1/2-mediated signaling, and inhibits the phosphorylation of certain regulatory proteins, including eukaryotic translation initiation factor 4E (eIF4E), that regulate the translation of messenger RNAs (mRNAs) involved in tumor cell proliferation, angiogenesis, survival and immune signaling

Vactosertib (EW-7197) acts as in inhibitor of transforming growth factor beta receptor 1B (ALK5) and activin A receptor type IB (ALK4). The compound is potent, selective, and orally bioavailable, and exhibits experimental anti-tumour activity.

LY3023414 is a dual inhibitor of phosphoinositide 3-kinase α (PI3Kα) and the serine/threonine kinase mTOR (mechanistic target of rapamycin), with potential antineoplastic activity.

Radotinib is indicated for the treatment of different types of cancer, most notably Philadelphia chromosome-positive (Ph+) chronic myeloid leukemia (CML) with resistance or intolerance of other Bcr-Abl tyrosine-kinase inhibitors, such as patients resistant or intolerant to imatinib.

AC0010 is an orally active, irreversible EGFR inhibitor that selectively targets mutated EGFRs, and was designed to overcome T790M-induced resistance in tumours [2]. It may also inhibit BTK, thus offering extended clinical utility [3]. We show the structure for the free base form of the compound.