FDA Issues 2 Anti-infective Drug Guidances

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FDA has issued two draft guidances to assist sponsors in developing specific types of anti-infective drugs. The first guidance, Recurrent Herpes Labialis: Developing Drugs for Treatment and Prevention, addresses the agency’s current thinking about the overall development program and clinical trial designs to support development of drug products with an antiviral mechanism of action used to prevent and/or treat recurrent herpes labialis, caused by either herpes simplex virus type 1 or 2 in immunocompetent subjects. FDA says the document is intended to be a focus for continued discussions among the CDER Division of Antiviral Products, drug sponsors, the academic community, and the public. It does not address development of drug products used to treat systemic, genital, or disseminated herpes virus infections, or herpes labialis in immunosuppressed subjects. It also does not contain discussions of the general issues of statistical analysis or clinical trial design.

The second guidance, Vulvovaginal Candidiasis: Developing Drugs for Treatment, is to assist drug sponsors in the overall clinical development program and clinical trial designs to support drugs for treating vulvovaginal candidiasis. It also is to be a focus for continued discussions among several stakeholders. The document generally focuses only on developing antifungal drugs for treating uncomplicated vulvovaginal candidiasis, generally defined as a single episode of vaginal inflammation caused by Candida yeast in an otherwise healthy female. It does not address complicated vulvovaginal candidiasis; sponsors are encouraged to talk with the agency about a clinical development program for treating complicated vulvovaginal candidiasis (three or more episodes in one year). The guidance does not discuss trial designs for development programs for nonprescription treatments, and also does not discuss general issues in drug development or general issues of statistical analysis or clinical trial design.

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