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In spite of intensive efforts and advances made, cancer remains a challenge and innovative therapies are needed to provide better treatments to cancer patients.Towards this goal, Spectrum has been engaged in bringing innovative drugs to cancer patients.Three such drugs currently marketed by Spectrum are Ibritumomab tiuxetan (Zevalin), pralatrexate (Folotyn) and Liposomal vincristine sulphate (Marqibo).