Clinical evaluation of teprenone, a mucosal protective agent, in the treatment of patients with gastric ulcers: a nationwide, multicenter clinical study.

The recurrence rate of gastric ulcers healing to a white scar is low, whereas that of ulcers healing to a red scar is high. Teprenone is a mucosal protective agent that can promote epithelial regeneration by increasing the mucosal hexosamine content. It promotes white scar formation when administered as maintenance therapy for ulcers. A nationwide, multicenter study was performed to determine whether white scar formation was also promoted when teprenone was used during initial therapy. Analysis of the data from 1249 patients showed that teprenone significantly promoted white scar formation. The presence of severe ulcers (large size and active stage), ulcer location at the gastric angulus, and smoking retarded white scar formation irrespective of the use of teprenone.