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A Trial to Investigate the Efficacy and Safety of Orally Administered Tolvaptan (OPC-41061) in Patients With Chronic Renal Failure Undergoing Hemodialysis or Hemodiafiltration

A Phase 2, Multicenter, Placebo-controlled, Double-blind, Randomized, Parallel-group Trial to Investigate the Efficacy and Safety of Orally Administered Tolvaptan (OPC-41061) in Patients With Chronic Renal Failure Undergoing Hemodialysis or Hemodiafiltration

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02331680
Enrollment
124
Registered
2015-01-06
Start date
2014-12-31
Completion date
2016-05-31
Last updated
2019-10-22

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

Conditions

Chronic Renal Failure

Keywords

Undergoing Hemodialysis, Undergoing Hemodiafiltration

Brief summary

This is a study to investigate the efficacy and safety of OPC-41061 by 24-week oral administration of OPC-41061 at 15-mg or 30-mg or placebo in patients with chronic renal failure who are undergoing hemodialysis or hemodiafiltration and who have daily urine volume of at least 500 mL/day.

Interventions

DRUGPlacebo

Sponsors

Otsuka Pharmaceutical Co., Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
20 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Chronic renal failure requiring hemodialysis or hemodiafiltration 3 times a week * Daily urine volume of ≥ 500 mL/day * Male or female patients age 20 to 80 years, inclusive * Use of one of the specified contraceptive methods until 4 weeks after final IMP administration * Capable of providing their own written informed consent prior to any trial-related procedures being performed

Exclusion criteria

* Patients with a complication of urinary impairment due to urinary tract stricture, urinary calculus, tumor in urinary tract, or other cause * Patients with NYHA class IV heart failure * Patients with impaired hepatic function(chronic hepatitis, drug-induced liver injury) * Patients with serious ischemic heart disease who are judged by the investigator or subinvestigator to be inappropriate for inclusion in the trial * Patients with serious arrhythmia who are judged by the investigator or subinvestigator to be inappropriate for inclusion in the trial * Patients with serious secondary hyperparathyroidism(intact parathyroid hormone \> 500 pg/mL) * Patients who are concomitantly undergoing peritoneal dialysis * Patients with a history of cerebrovascular disease or coronary artery disease within 4 weeks prior to informed consent, a history of hypersensitivity to any ingredient of tolvaptan or benzazepine derivatives such as mozavaptan hydrochloride or a history of impaired hepatic function(chronic hepatitis, drug-induced liver injury) * Patients with any of the following abnormal laboratory values: hemoglobin \< 8.0 g/dL, total bilirubin \> 3.0 mg/dL, ALT (GPT) or AST (GOT) \> 2 times the upper limit of the reference range, serum sodium \> upper limit of the reference range, serum sodium \< 125 mEq/L, or serum potassium \> 6.0 mEq/L * Patients who are unable to sense thirst or who have difficulty with fluid intake * Patients who have received OPC-41061 in history. * Participation in any other clinical trial or post-marketing clinical study within 4 weeks prior to informed consent for the present trial * Female patients who are pregnant, possibly pregnant, or nursing * Patients otherwise judged by the investigator or subinvestigator to be inappropriate for inclusion in the trial

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline in Daily Urine VolumeBaseline,End of the treatmentChange in daily urine volume from baseline to the end of the treatment was calculated using descriptive statistics.

Secondary

MeasureTime frameDescription
Change in Total Volume of Fluid Removed by Dialysis Per WeekBaseline,End of the treatmentChange in total volume of fluid removed by dialysis per week from baseline to the end of the treatment was calculated using descriptive statistics.

Countries

Japan

Participant flow

Participants by arm

ArmCount
OPC-41061 15mg/Day
OPC-41061 (15 mg/day) was orally administered once daily after breakfast on off-dialysis days for 24 weeks.
40
OPC-41061 30mg/Day
OPC-41061 (30 mg/day) was orally administered once daily after breakfast on off-dialysis days for 24 weeks.
40
Placebo
OPC-41061 placebo was orally administered once daily after breakfast on off-dialysis days for 24 weeks.
44
Total124

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyAdverse Event302
Overall StudyMet withdrawal criteria225
Overall StudyNon-compliance with study drug001
Overall StudyPhysician Decision112
Overall StudyProtocol Violation003
Overall StudyWithdrawal by Subject012

Baseline characteristics

CharacteristicOPC-41061 30mg/DayPlaceboOPC-41061 15mg/DayTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
14 Participants22 Participants23 Participants59 Participants
Age, Categorical
Between 18 and 65 years
26 Participants22 Participants17 Participants65 Participants
Age, Continuous60.5 years
STANDARD_DEVIATION 12.6
64.4 years
STANDARD_DEVIATION 8.7
64.2 years
STANDARD_DEVIATION 11
63.0 years
STANDARD_DEVIATION 10.8
Region of Enrollment
Japan
40 participants44 participants40 participants122 participants
Sex: Female, Male
Female
11 Participants40 Participants5 Participants56 Participants
Sex: Female, Male
Male
29 Participants4 Participants35 Participants68 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 390 / 390 / 44
other
Total, other adverse events
34 / 3938 / 3934 / 44
serious
Total, serious adverse events
6 / 397 / 3910 / 44

Outcome results

Primary

Change From Baseline in Daily Urine Volume

Change in daily urine volume from baseline to the end of the treatment was calculated using descriptive statistics.

Time frame: Baseline,End of the treatment

ArmMeasureValue (MEAN)Dispersion
OPC-41061 15mg/DayChange From Baseline in Daily Urine Volume169.2 mLStandard Deviation 422.2
OPC-41061 30mg/DayChange From Baseline in Daily Urine Volume111.8 mLStandard Deviation 557.7
PlaceboChange From Baseline in Daily Urine Volume-259.9 mLStandard Deviation 463.8
Secondary

Change in Total Volume of Fluid Removed by Dialysis Per Week

Change in total volume of fluid removed by dialysis per week from baseline to the end of the treatment was calculated using descriptive statistics.

Time frame: Baseline,End of the treatment

ArmMeasureValue (MEAN)Dispersion
OPC-41061 15mg/DayChange in Total Volume of Fluid Removed by Dialysis Per Week485.9 mLStandard Deviation 1979.3
OPC-41061 30mg/DayChange in Total Volume of Fluid Removed by Dialysis Per Week375.4 mLStandard Deviation 1721.8
PlaceboChange in Total Volume of Fluid Removed by Dialysis Per Week1099.5 mLStandard Deviation 2160.5

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026