Edotecarin (J-107088 or [6-N-(1-hydroxymethyl-2-hydroxy)ethylamino-12,13-dihydro-2,10-dihydroxy- 13-(beta-D-glucopyranosyl)-5H-indolo[2,3-a]-pyrrolo[3,4-c]-carb azo le-5,7(6H)-dione]) is a DNA topoisomerase I inhibitor. The antitumor activity of edotecarin has been tested in vitro and in vivo, and inhibition of tumor growth has been observed in breast, cervix, pharynx, lung, prostate, colon, gastric, and hepatic cancer models. Banyu Pharmaceutical Co Ltd and Pfizer Inc were developing edotecarin for the potential treatment of solid tumors. Edotecarin development has been discontinued.

An orally bioavailable imidazopyridazine and inhibitor of Janus kinase 2 mutant V617F (JAK2V617F), with potential antineoplastic activity. Upon oral administration, gandotinib selectively and competitively inhibits the activation of JAK2V617F, which may result in the inhibition of the JAK-STAT signaling pathway and the induction of apoptosis in JAK2V617F-expressing tumor cells. Gandotinib is in phase II clinical trials by Lilly for the treatment of myeloproliferative disorders.

Darapladib (SB-435495), as reversible inhibitors of lipoprotein-associated phospholipase A(2) (Lp-PLA(2) has been developed and studies for the potential treatment of atherosclerosis. In November 2013, GSK announced that the drug had failed to meet Phase III endpoints in a trial of 16,000 patients with acute coronary syndrome.