Russian Pharmaceutical Technologies is developing alofanib, a first in class, allosteric inhibitor of fibroblast growth factor receptor type 2 (FGFR2) for the treatment of tumours expressing FGFR2, including ovarian cancer, colorectal cancer and lung cancer. Alofanib is a potential allosteric inhibitor of FGFR2 used in oncology. Alofanib has potent effects on ovarian cancer growth in preclinical studies.The inhibitor blocks the extracellular part of the receptor and prevents its binding with the ligand. Alofanib suppressed proliferation of endothelial cells, their migration activity, and ability to form vessellike structures in vitro and significantly decreased the number of microvessels in Matrigel implant and in ovarian cancer (SKOV-3) xenograft in vivo. The results indicate that Alofanib can inhibit angiogenesis.

MK-3281 is a potent and orally bioavailable inhibitor of HCV NS5B polymerase which combined excellent cell-based potency with good pharmacokinetic properties in preclinical species. MK-3281 was efficacious in the chimeric mouse model of HCV infection.

Mevastatin (compactin or ML-236B) is an inhibitor of 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase. This drug induces apoptosis and arrest of cancer cells in G1 phase. Therapeutic effects of mevastatin on serum level of lipoproteins and unbiquinone-10 in patients with familial hypercholesterolemia were investigated. However, that study was discontinued. In addition, mevastatin was investigated for the treatment of melanoma. It was suggested, that mevastatin was unlikely to prevent melanoma at standard doses. However, higher doses could have a role to play in adjuvant therapy by inhibiting growth and invasion of melanoma cells. Also was revealed, that mevastatin increased histone deacetylase inhibitor, LBH589-induced cell death in triple-negative breast cancer (TNBC) cells.