Verdiperstat (formerly known as AZD 3241) was developed as a selective inhibitor of myeloperoxidase, an enzyme that acts as a key driver of pathological oxidative stress and inflammation in the brain. Verdiperstat was studied in patients with a number of neurodegenerative disorders, including multiple system atrophy and Parkinson's disease. Verdiperstat participated in phase II clinical trials for both diseases. As a result, studies for Parkinson disease were discontinued. In the case of multiple system atrophy, the drug has received the orphan drug status.

Gemcitabine elaidate is an ester of anticancer drug gemcitabine and elaidic fatty acid. The motivation to make an ester was to facilitate gemcitabine uptake and prolong retention in the cell. The drug is converted to parent compound gemcitabine both inside and outside the cell. Gemcitabine elaidate was developed by Clavis Pharma for treatment of solid tumors, including non-small cell lung cancer and pancreatic cancer, but its development was discontinued after product missed the primary endpoint in the Phase II LEAP trial to treat metastatic pancreatic cancer.

Quisinostat is an orally bioavailable potent histone deacetylase inhibitor, specifically selected due to its sustained inhibition of HDAC1 in solid tumor tissues and prolonged period of half-elimination from tissues. Phase 2 clinical trials are ongoing in patients with platinum-resistant ovarian cancer and non-small cell lung cancer (NSCLC). Quisinostat is active in the treatment of patients with relapsed or refractory Sézary syndrome. The most common drug-related adverse events reported in this trial were: nausea, diarrhea, asthenia. Grade 3 adverse events were also reported: hypertension, lethargy and pruritus.

Sapitinib is an oral, reversible and equipotent inhibitor of EGFR, HER2 and HER3 signalling. The drug was tested in phase II of clinical trials in patients with breast cancer, colorectal cancer, gastric cancer and NSCL carcinoma, however its development for breast cancer therapy seems to be terminated. Sapitinib absorption is rapid and the drug is totally cleared by metabolism with the major routes being oxidation and amine or ether cleavage around the piperidine ring with subsequent glucuronide or sulphate conjugation.

PF-04217903 is a triazolopyrazine inhibitor of c-MET that displays anticancer chemotherapeutic and anti-metastatic activities. PF-04217903 inhibits cell proliferation, invasion, and migration as well as tumor growth in various cancer models. In animal models of pancreatic neuroendocrine tumors, this compound prevents lymph node metastasis. PF-04217903 had been in phase I clinical trials by Pfizer for the treatment of solid tumors. In 2011, the company discontinued the development of the compound.

Galeterone (TOK-001, formerly called VN/124-1) is a potent anti-androgen with three modes of action. The compound acts as a specific androgen receptor antagonist, inhibits CYP17 lyase while conserving CYP17 hydroxylase function, and decreases overall androgen receptor levels in prostate cancer cells. Galeterone is a first in class, multi-targeted small-molecule drug that disrupts the growth and survival of prostate cancer cells. Tokai Pharmaceuticals is developing galeterone as an oral treatment for castration-resistant prostate cancer. Phase III clinical development of galeterone is underway in the US, Canada, Australia, Western Europe, Spain and the United Kingdom.

Viquidacin (also known as NXL-101), a quinoline antibacterial agent, was studied as a bacterial DNA gyrase and topoisomerase IV inhibitor. Viquidacin showed potent activity against gram-positive bacteria, including methicillin- and fluoroquinolone-resistant strains. The drug participated in phase I clinical trial. Viquidacin achieved homogeneous and potent bactericidal concentrations in human volunteer plasma. However, further, development was discontinued after QT interval prolongation, which was observed in a healthy volunteer.

Sapanisertib is an oral dual inhibitor of mTORC1/mTORC2, discovered by Intellikine for the treatment of cancer. The drug is being tested in phase II of clinical trials for different cancers among which are sarcoma, hepatocellular carcinoma, etc. The drug is currently developed by Takeda with breast cancer, renal cancer and endometrial cancer being the main target indications.

Oprozomib (PR-047) is an orally bioavailable derivative of carfilzomib, with similar biological activity, i.e. inhibition of the chymotrypsin-like activity of the proteasome. It inhibits the activity of the proteasome, thereby blocking the targeted proteolysis normally performed by the proteasome; this may result in an accumulation of unwanted or misfolded proteins. Disruption of various cell signaling pathways may follow, eventually leading to the induction of apoptosis and inhibition of tumor growth. Oprozomib (PR-047) is being investigated for the treatment of hematologic malignancies, specifically, multiple myeloma, with Phase I/II trial ongoing.

Ilorasertib (previously known as ABT-348), an orally bioavailable ATP-competitive inhibitor of Aurora kinases (A, B and C), as well as the VEGF and PDGF families of receptor tyrosine kinases, was developed by AbbVie as an antineoplastic agent. It is known that Aurora kinases A, B, and C play essential roles in mitotic checkpoint control and are overexpressed by a wide variety of tumor cell types. Both VEGFRs and PDGFRs may be upregulated in various tumor cell types. Ilorasertib alone or in combination with azacitidine demonstrated activity in preclinical models in various hematological malignancies, indicating that pan-Aurora kinase and multiple kinase inhibition may have preferential antileukemic activity. Ilorasertib participated in phase I clinical for patients with advanced hematologic malignancies. The result has shown that the drug could be further studied in acute myelogenous leukemia. Ilorasertib is also going to be studied in phase II clinical trials to learn if this drug can help to control CDKN2A-deficient cancer in patients with advanced cancers.