Pharmaceutical composition containing a mixture of proenzymes and enzymes, containing proenzymes trypsinogen and chymotrypsinogen and enzymes ct-amylase and lipase as active substances, and one or more pharmaceutically acceptable excipients, for simultaneous, separate and subsequent administration of the composition in parenteral or transmucosal way, the composition has anti-proliferative and anti-metastatic effects to cancer tumours and is intended for therapeutic, prophylactic and anti-metastatic use in mammals.