UPPSALA, Sweden, May 4, 2010 (GLOBE NEWSWIRE) -- Oasmia Pharmaceutical AB announced today the preliminary results from a clinical Phase III study of dogs affected by mastocytoma (mast cell tumours), a type of skin cancer. The study measured the effect of Paccal® Vet. Preliminary analysis of data supports the primary endpoint that clinical response of dogs treated with Paccal Vet was superior to the active control lomustine and that the frequency of side effects was comparable between the groups. As expected, Paccal Vet resulted in less liver dysfunctions than in the lomustine group.