PF-03893787 is potent and selective histamine H4 receptor (H4R) antagonist. It has comparable binding affinity to the human histamine H3 receptor. PF-03893787 was found to have significant affinity for the hERG channel. Novartis initiates a phase II extension trial in Atopic dermatitis. Studies exploring the utility of PF-3893787 in patients would be reported in due course, being the potential indications of asthma, pruritus, inflammatory skin diseases and pain, among others.

ASC-09 orTMC-310911, a HIV protease inhibitor, participated in phase II clinical for the treatment of Human Immunodeficiency Virus Type 1. However, no recent development has been reported.

BAY-86-9596 (D-18F-FMT, or O-18F-fluoromethyl-D-tyrosine) was developed as an agent not only for tumor detection but also for monitoring early-phase response to radiation therapy by positron emission tomography (PET). This drug participated in clinical trials for patients with inflammation and solid tumors, but further information about trials is not available.

AZD3839 is a potent and selective BACE1 inhibitor with about 14-fold selectivity over BACE2. In SH-SY5Y cells, AZD3839 efficiently decreases the Aβ40 levels and decreases the formation of sAPPβ. AZD3839 also decreases the Aβ40 levels secreted from C57BL/6 mouse primary cortical neurons, N2A cells, and Dunkin-Hartley guinea pig primary cortical neurons. AZD3839 causes in vitro BACE1 inhibition in the cell assay with the IC50 value of 16.7 nM. In C57BL/6 mice, AZD3839 (69 mg/kg, p.o.) causes a dose- and time-dependent reduction of plasma and brain Aβ. In guinea pig and non-human primates, AZD3839 also inhibits Aβ generation. AZD3839 has been used in phase I clinical trials studying the basic science of Safety and Tolerability. However future development has been discontinued.

LY2300559 is a dual metabotropic glutamate receptor 2 (mGluR2) positive allosteric modulator and cysteinyl leukotriene receptor 1 (CysLTR1) antagonist. Eli Lilly was developing LY2300559 for the prevention of migraine. LY2300559 development has been discontinued.

CHF6001 is a phosphodiesterase 4 (PDE4) inhibitor optimised for inhaled delivery and tolerability, for the treatment of Asthma and Chronic Obstructive Pulmonary Disease. CHF6001 was 7- and 923-fold more potent than roflumilast and cilomilast, respectively, in inhibiting PDE4 enzymatic activity. CHF6001 inhibited PDE4 isoforms A-D with equal potency, showed an elevated ratio of high-affinity rolipram binding site versus low-affinity rolipram binding site and displayed >20,000-fold selectivity versus PDE4 compared with a panel of phosphodiesterases. CHF6001 effectively inhibited the release of tumor necrosis factor-α from human peripheral blood mononuclear cells, human acute monocytic leukemia cell line macrophages (THP-1), and rodent macrophages (RAW264.7 and NR8383). CHF6001 has the potential to be an effective topical treatment of conditions associated with pulmonary inflammation, including asthma and chronic obstructive pulmonary disease.

Sitravatinib (MGCD516) is a receptor tyrosine kinases (RTK) inhibitor that blocks a wide array of RTKs known to be amplified/overexpressed in sarcomas, which are key regulators of signaling pathways that lead to cell growth, survival and tumor progression. It is involved in driving sarcoma cell growth with IC50 of 3980 nM and is superior to other multi-kinase inhibitors in inhibiting cell proliferation, RTK phosphorylation, and phosphorylation of downstream effectors. The efficacy of sitravatinib was tested using a wide panel of sarcoma cell lines, including malignant peripheral nerve sheath tumor (MPNST), Ewing sarcoma (A673), osteosarcoma (Saos2), and liposarcoma (DDLS, LS141). Both in vitro and in vivo efficacy sitravatinib was significantly better that the other two multi-kinase inhibitors, imatinib and crizotinib. Sitravatinib treatment not only inhibits tumor cell proliferation at low nanomolar concentrations in vitro but also results significant tumor growth suppression in vivo in mouse xenograft models. Sitravatinib is being evaluated in a Phase 1b dose expansion cohort in selected patients with specific genetic alterations that are drivers of tumor growth, with an initial focus on Non-Small-Cell Lung carcinoma (NSCLC) and in other solid tumors where sitravatinib may confer a benefit. Its efficacy and safety is also being tested in Phase II clinical trials in patients with advanced liposarcoma as a monotherapy and NSCLC in combination with nivolumab.

PTX-008 (OTX008) is a calixarene-based compound and galectin-1 (Gal-1) inhibitor with potential anti-angiogenic and antineoplastic activities. Upon subcutaneous administration, galectin-1 inhibitor OTX008 binds Gal-1 which leads to Gal-1 oxidation and proteosomal degradation through a not yet fully elucidated mechanism, and eventually downregulates Gal-1. This decreases tumor cell growth and inhibits angiogenesis. Gal-1, a multifunctional carbohydrate-binding protein, is often overexpressed on tumor cells and plays a key role in cancer cell proliferation, apoptosis, tumor angiogenesis and evasion of immune responses. PTX-008 had been in phase I clinical trials for the treatment of solid tumours. This compound was originally discovered by University of Minnesota and PepTx, then licensed to OncoEthix (acquired by Merck Sharp & Dohme in 2014). However, no recent developments has been reported.

LCB01-0371, an oxazolidinone derivative, shows good activity against Gram-positive pathogens, including Staphylococcus aureus. It is also effective against multidrug-resistant tuberculosis and is currently under clinical development.