Sirtris Pharmaceuticals, a developer of drugs to treat aging-related diseases, filed for an IPO Thursday. JPMorgan and CIBC are the lead underwriters on the deal. Terms and timing have not yet been announced.

Sirtris Pharmaceuticals, a developer of drugs to treat aging-related diseases, filed for an IPO Thursday. JPMorgan and CIBC are the lead underwriters on the deal. Terms and timing have not yet been announced.