title: Vonoprazan 20 mgvslansoprazole 30 mg for endoscopic submucosal dissection-induced gastric ulcers.
abstract: OBJECTIVE
  To compare the healing effects of vonoprazan and lansoprazole on gastric ulcers induced by endoscopic submucosal dissection (ESD).
  
  
  METHODS
  Data were obtained from a total of 26 patients. Fourteen patients were randomized to the vonoprazan group and 12 were randomized to the lansoprazole group. Patients were administered either 20 mg vonoprazan or 30 mg lansoprazole per day after ESD. Endoscopic images just after ESD, on day 8, and on day 28 were used for the evaluation of the shrinking rate of ESD ulcers. The shrinking rates and the incidence of delayed bleeding were compared between the 2 groups.
  
  
  RESULTS
  The shrinking rates of ESD ulcers on day 8 [vonoprazan group: 61.8% (range: 24.0%-91.1%), lansoprazole group: 71.3% (range: 25.2%-88.6%)] and on day 28 [vonoprazan group: 95.3% (range: 76.2%-100%), lansoprazole group: 97.2% (range: 81.1%-99.8%)] were not statistically different between the 2 groups. On day 28, most of the ulcers in both groups healed to more than 90%, whereas 3 of 14 (21.4%) in the vonoprazan group and 1 of 12 (8.3%) in the lansoprazole group had delayed ulcer healing, which was not statistically different (P= 0.356). The frequency of delayed bleeding was 0 in the both groups. Taken together, there were no significant differences between the two drug groups.
  
  
  CONCLUSIONS
  Our study indicates that vonoprazan is potent for the management of ESD ulcers although lansoprazole is also sufficient and cost-effective.
authors.affiliation: Kazuya Takahashi, Yuichi Sato, Department of Endoscopy, Niigata University Medical and Dental Hospital, Niigata 951-8510, Japan.
authors.forename: Kazuya
authors.initials: K
authors.lastname: Takahashi
authors.affiliation: Kazuya Takahashi, Yuichi Sato, Department of Endoscopy, Niigata University Medical and Dental Hospital, Niigata 951-8510, Japan.
authors.forename: Yuichi
authors.initials: Y
authors.lastname: Sato
authors.affiliation: Kazuya Takahashi, Yuichi Sato, Department of Endoscopy, Niigata University Medical and Dental Hospital, Niigata 951-8510, Japan.
authors.forename: Junji
authors.initials: J
authors.lastname: Kohisa
authors.affiliation: Kazuya Takahashi, Yuichi Sato, Department of Endoscopy, Niigata University Medical and Dental Hospital, Niigata 951-8510, Japan.
authors.forename: Jun
authors.initials: J
authors.lastname: Watanabe
authors.affiliation: Kazuya Takahashi, Yuichi Sato, Department of Endoscopy, Niigata University Medical and Dental Hospital, Niigata 951-8510, Japan.
authors.forename: Hiroki
authors.initials: H
authors.lastname: Sato
authors.affiliation: Kazuya Takahashi, Yuichi Sato, Department of Endoscopy, Niigata University Medical and Dental Hospital, Niigata 951-8510, Japan.
authors.forename: Kenichi
authors.initials: K
authors.lastname: Mizuno
authors.affiliation: Kazuya Takahashi, Yuichi Sato, Department of Endoscopy, Niigata University Medical and Dental Hospital, Niigata 951-8510, Japan.
authors.forename: Satoru
authors.initials: S
authors.lastname: Hashimoto
authors.affiliation: Kazuya Takahashi, Yuichi Sato, Department of Endoscopy, Niigata University Medical and Dental Hospital, Niigata 951-8510, Japan.
authors.forename: Shuji
authors.initials: S
authors.lastname: Terai
keywords: Endoscopic submucosal dissection; Gastric cancer; Lansoprazole; Potassium-competitive acid blocker; Proton pump inhibitor; Vonoprazan