A History of Gastric or Duodenal Ulcers

Vonoprazan Study of Investigating the Effect on Sleep Disturbance Associated With Reflux Esophagitis- Exploratory Evaluation

A Study to Evaluate the Efficacy and Safety of Bismuth-Containing Quadruple Therapy With Oral Vonoprazan (TAK-438) 20 mg Compared to Esomeprazole 20 mg Twice Daily in Paticipants With Helicobacter Pylori Infection

Comparison of TAK-438 (Vonoprazan) to Lansoprazole in the Treatment of Gastric Ulcer Participants With or Without Helicobacter Pylori Infection

Comparison of TAK-438 (Vonoprazan) to Lansoprazole in the Treatment of Duodenal Ulcer Participants With or Without Helicobacter Pylori Infection

Efficacy and Safety of Vonoprazan Compared to Lansoprazole in the Maintenance Treatment of Erosive Esophagitis

Efficacy and Safety of Oral Once-Daily Vonoprazan (TAK-438) in Participants With Erosive Esophagitis

Phase 3 Study to Evaluate the Acid-Inhibitory Effect of Multiple Oral Doses of Vonoprazan (TAK-438)

Comparison of Vonoprazan to Esomeprazole in Participants With Symptomatic GERD Who Responded Partially to a High Dose of Proton Pump Inhibitor (PPI)

Special Drug Use Surveillance of Vonoprazan for "Prevention of Recurrence of Gastric/Duodenal Ulcer in Patients Receiving Low-dose Aspirin: Long-term Use"

Special Drug Use Surveillance of Vonoprazan for "Prevention of Recurrence of Gastric/Duodenal Ulcer in Patients Receiving Non-steroidal Anti-inflammatory Drugs: Long-term Use"

Special Drug Use Surveillance of Vonoprazan for "Maintenance Therapy of Reflux Esophagitis: Long-term Use"

Drug Use Surveillance of Vonoprazan for "Gastric Ulcer, Duodenal Ulcer, and Reflux Esophagitis"