Vion Pharmaceuticals, Inc.

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Vion Pharmaceuticals, Inc.
Public OTC BB: VIONQ.OB)
Industry Pharmaceuticals
Founded 1992
Defunct 2009
Headquarters New Haven, Connecticut, United States
Website http://www.vionpharm.com

Vion Pharmaceuticals, Inc. was a New Haven, Connecticut based pharmaceutical company founded in March 1992 to commercialize several discoveries made in the biomedical laboratories at Yale University.

Clinical Development[edit]

Two anticancer agents, Onrigin (laromustine), formerly cloretazine (VNP40101M), and Triapine, a ribunucloetide reductase inhibitor similar to hydroxyurea, were in human clinical trials. Onrigin (laromustine), a novel alkylating agent, was evaluated in a Phase 2 trial in elderly de novo poor-risk acute myeloid leukemia (AML). In addition, several trials of Onrigin (laromustine) were conducted in elderly patients with AML and myelodysplastic syndrome (MDS) in combination with cytarabine and in patients with brain tumors in combination with temozolomide. After Onrigin was rejected by the Food and Drug Administration for an AML indication in 2009 due to an unfavorable risk-benefit profile, the company went defunct.