Pharmacokinetic trials have demonstrated that Labopharm's once-daily formulation of trazodone has controlled-release properties over a 24-hour period.
Based on discussions with U.S. Food and Drug Administration (FDA), Labopharm expects to submit a New Drug Application (NDA) for its once-daily formulation of trazodone under Section 505(b)(2) of the U.S. Federal Food, Drug and Cosmetic Act, which typically applies to reformulations of drugs that are already approved and being marketed, allowing the Company to leverage existing efficacy and safety data on trazodone. Under this Section of the Act, one positive Phase III study is required for the formulation to be approved by the FDA.
About Trazodone
Trazodone is an atypical anti-depressant that acts as a dual serotonin agonist and serotonin reuptake inhibitor (SARI). Trazodone appears to increase serotonin activity via three mechanisms: the activation of neuronal serotonin receptors; the inhibition at the neuronal serotonin feedback system which regulates the action of serotonin; and the inhibition of the re-uptake of serotonin. Trazodone also helps to treat depression by improving sleep as a result of sedative effects caused by activation of histamine receptors and initiation and restoration of deep sleep cycles as a result of serotonin receptor activation. This may be of clinical benefit in depressed patients who have agitation, insomnia or poor sleep quality associated with their depression. Depression is one of the most prevalent central nervous system disorders, affecting at least 121 million people globally. Trazodone is widely used in its treatment with more than 14 million prescriptions written in the U.S. alone in 2006.
About Labopharm's Once-Daily Formulation of Trazodone
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