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A multicenter, open-label extension study to investigate the long-term safety and efficacy of tolvaptan in patients with autosomal dominant polycystic kidney disease (ADPKD) [Extension of Trial 156-04-251]

A multicenter, open-label extension study to investigate the long-term safety and efficacy of tolvaptan in patients with autosomal dominant polycystic kidney disease (ADPKD) [Extension of Trial 156-04-251]

Status
Unknown
Phases
Phase 3
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT2080221325
Enrollment
150
Registered
2010-12-03
Start date
2010-12-03
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Autosomal dominant polycystic kidney disease (ADPKD)

Interventions

investigational material(s) Generic name etc : Tolvaptan INN of investigational material : Therapeutic category code : 249 Other hormone preparations (including antihormone preparations) Dosage and A

Sponsors

Otsuka Pharmaceutical Co., Ltd.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Patients who participated in Trial 156-04-251 in Japan and for whom CRF collection has been completed. 2) Patients who completed 3-year repeated administration and who completed the second follow-up visit or patients whose treatment with the trial drug was interupted due to pregnancy and who completed out the second follow-up visit in Trial 156-04-251. 3) Patients in whom any adverse events occurring in Trial 156-04-251 were resolved orstabilized and require no further follow-up.

Exclusion criteria

Exclusion criteria: 1) Patients with eGFR of less than 15 mL/min/1.73 m2 2) Pregnant, breast-feeding, or possibly pregnant women or women who are planning to become pregnant 3) Patients who received any investigational drug other than Tolvaptan within 30 days prior to commencement of administration of tolvaptan 4) Any patients who, in the opinion of the principle investigator or subinvestigators, should not participate in the study

Design outcomes

Primary

MeasureTime frame
adverse events, laboratory values, plasma AVP concentration, vital signs, body weight, and ECG Every 1, 3 or 12 months combined renal volume (right and left kidneys) and renal function test Every 3 or 12 months

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026