[Initial results in the treatment of male fertility disorders with kallikrein: asthenozoospermia].

30 patients with asthenozoospermia were treated with kallikrein a kinin-liberating proteinase over a period of seven weeks. During parenteral and oral application of kalikrein and after medication within an observation period of 3 months a significant increase of the quantitative and qualitative sperm motility was found. Parenteral application of kallikrein led to a significant increase of the number of spermatozoa 3 months after beginning of the kallikrein therapy. Other semen parameters were not influenced. No side-effects were observed.