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Linsitinib
Names
	Preferred IUPAC name (1s,3s)-3-[8-Amino-1-(2-phenylquinolin-7-yl)imidazo[1,5-a]pyrazin-3-yl]-1-methylcyclobutan-1-ol
	Other names OSI-906
Identifiers
CAS Number	867160-71-2 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:91402;
ChEMBL	ChEMBL1091644;
ChemSpider	21391708;
DrugBank	DB06075;
KEGG	D09925;
PubChem CID	11640390;
UNII	15A52GPT8T;
CompTox Dashboard (EPA)	DTXSID401007055 ;
	InChI InChI=1S/C26H23N5O/c1-26(32)14-19(15-26)25-30-22(23-24(27)28-11-12-31(23)25)18-8-7-17-9-10-20(29-21(17)13-18)16-5-3-2-4-6-16/h2-13,19,32H,14-15H2,1H3,(H2,27,28) Key: PKCDDUHJAFVJJB-UHFFFAOYSA-N; InChI=1/C26H23N5O/c1-26(32)14-19(15-26)25-30-22(23-24(27)28-11-12-31(23)25)18-8-7-17-9-10-20(29-21(17)13-18)16-5-3-2-4-6-16/h2-13,19,32H,14-15H2,1H3,(H2,27,28)/t19-,26+ Key: PKCDDUHJAFVJJB-VLZXCDOPBI;
	SMILES C[C@]1(C[C@@H](C1)C2=NC(=C3N2C=CN=C3N)C4=CC5=C(C=CC(=N5)C6=CC=CC=C6)C=C4)O;
Properties
Chemical formula	C26H23N5O
Molar mass	421.504 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Linsitinib is an experimental drug candidate for the treatment of various types of cancer. It is an inhibitor of the insulin receptor and of the insulin-like growth factor 1 receptor (IGF-1R).^[1] This prevents tumor cell proliferation and induces tumor cell apoptosis.^[2]

Linsitinib was granted orphan drug designation for adrenocortical carcinoma in March 2012.^[3]

Phase II clinical trials were initiated for multiple myeloma, ovarian cancer, hepatocellular carcinoma, and NSCLC, but subsatisfactory results caused research for these indications to be discontinued.^[3] A phase III clinical trial found that linsitinib did not increase survival in patients with adrenocortical carcinoma.^[4] As of 2017, no clinical trials were in progress.^[3]

References

^ Mulvihill, Mark J; Cooke, Andrew; Rosenfeld-Franklin, Maryland; Buck, Elizabeth; Foreman, Ken; Landfair, Darla; O’Connor, Matthew; Pirritt, Caroline; Sun, Yingchaun; Yao, Yan; Arnold, Lee D; Gibson, Neil W; Ji, Qun-Sheng (September 2009). "Discovery of OSI-906: a selective and orally efficacious dual inhibitor of the IGF-1 receptor and insulin receptor". Future Medicinal Chemistry. 1 (6): 1153–1171. doi:10.4155/fmc.09.89. PMID 21425998.
^ "Linsitinib". NCI Drug Dictionary. National Cancer Institute. Retrieved October 16, 2012.
^ ^a ^b ^c "Linsitinib - AdisInsight". adisinsight.springer.com.
^ Fassnacht, Martin; Berruti, Alfredo; Baudin, Eric; Demeure, Michael J; Gilbert, Jill; Haak, Harm; Kroiss, Matthias; Quinn, David I; Hesseltine, Elizabeth; Ronchi, Cristina L; Terzolo, Massimo; Toni Choueiri; Poondru, Srinivasu; Fleege, Tanya; Rorig, Ramona; Chen, Jihong; Stephens, Andrew W; Worden, Francis; Hammer, Gary D (April 2015). "Linsitinib (OSI-906) versus placebo for patients with locally advanced or metastatic adrenocortical carcinoma: a double-blind, randomised, phase 3 study". The Lancet Oncology. 16 (4): 426–435. doi:10.1016/S1470-2045(15)70081-1. hdl:2318/1534804. PMID 25795408.