Kidney drug tolvaptan put to the test in Real-World japanese patients
NCT ID NCT02847624
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study followed 1802 Japanese patients with autosomal dominant polycystic kidney disease (ADPKD) who were taking tolvaptan in real-world clinics. Researchers tracked safety and how well the drug slowed kidney growth. The goal was to see if tolvaptan works as well outside controlled trials as it does in them.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
tolvaptan
What this could lead to
If successful, this study could confirm that tolvaptan safely slows kidney growth in ADPKD patients in everyday clinical practice.
What could go wrong
This is an observational follow-up study, not a new treatment test. Results may not apply outside Japan, and tolvaptan can cause liver side effects.
Disclaimer
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the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
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Locations
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Otsuka Pharmaceutical Co., Ltd.
Tokyo, Japan