Dr Reddy's Laboratories (DRL), a Hyderabad-based pharmaceutical major, has entered into an agreement with British drug maker SkyePharma to undertake a feasibility study of a product utilising two of the latter's proprietary drug delivery systems.According to an official release issued by the DRL to the BSE today, it will bear the costs of the study and SkyePharma will also receive an upfront payment. If the feasibility study is successful, full development activities will begin later this year.