Otsuka Beijing Research Institute

This study looked at how the drug Tolvaptan behaves in the bodies of 64 healthy men. One group took a single dose, another took multiple doses. The goal was to measure drug levels over time, not to treat any disease. No direct health benefit was expected for participants.

This completed Phase 1 study looked at how a single 7.5mg dose of tolvaptan is processed by the body in 10 healthy men aged 18-40. Researchers measured drug levels and safety, with no treatment for any disease involved. The goal was simply to gather data on the drug's behavior in…

This study tested the drug tolvaptan in 12 healthy men to see how the body absorbs, processes, and removes it. Researchers also checked for side effects. The goal was to gather safety and drug-level information, not to treat any disease.