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A Dose-defining Study of OPC-41061 in Treatment of Hepatic Edema

A Dose-defining Study of OPC-41061 in Treatment of Hepatic Edema

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00479336
Enrollment
104
Registered
2007-05-28
Start date
2007-06-30
Completion date
2009-01-31
Last updated
2014-03-14

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

Conditions

Cirrhosis

Keywords

OPC-41061, Tolvaptan, ascites, Cirrhosis

Brief summary

To investigate the dose response for changes from baseline in body weight as a primary endpoint and to investigate improvement in ascites, abdominal circumference, lower-limb edema, and pleural effusion as secondary endpoints in seven-day repeated oral administration of OPC-41061 at 7.5, 15, and 30 mg/day or placebo in cirrhosis patients with ascites despite taking conventional diuretics.

Interventions

DRUGOPC-41061 7.5mg

7.5mg, 1 tablet a day

DRUGOPC-41061 placebo

placebo, 1 tablet a day

DRUGOPC-41061 15mg

15mg, 1 tablet a day

DRUGOPC-41601 30mg

30mg, 1 tablet a day

Sponsors

Otsuka Pharmaceutical Co., Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

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

Inclusion criteria

1. Subjects with ascites despite taking either of the following combinations of loop diuretics and an anti-aldosterone agent (spironolactone) for at least 7 days prior to start of the study drug administration. Combination 1: Loop diuretics at indicated below in combination with an anti-aldosterone agent at a daily dose of 25 mg or more * Furosemide: 40 mg/day or more * Other loop diuretic: a daily dosage equivalent to 40 mg or more of furosemide Bumetanide: 1 mg/day or more, Piretanide: 6 mg/day or more, Azosemide: 60 mg/day or more, Torasemide: 8 mg/day or more Combination 2: Anti-aldosterone agent at a daily dose of 50 mg or more in combination with furosemide at a daily dose of 20 mg or more (or one of the other loop diuretics specified in Combination 1 at a daily dosage equivalent to 20 mg or more of furosemide) 2. Patients who have been hospitalized or are able to stay at the study site from the start of the run-in observation period until completion of postdosing observation 2. 3. Subjects capable of giving informed consent to participate in the study of their own free will.

Exclusion criteria

1. Subjects with any of the following complications or symptoms: (1) Hepatic encephalopathy (Hepatic coma grade: II or more), (2) Poorly-controlled hepatocellular carcinoma (i.e., hepatocellular carcinoma with vessel infiltration confirmed by imaging in the main trunk or main branch of the portal vein, inferior vena cava, or the main trunk of the hepatic vein), (3)Endoscopic findings within 30 days prior to screening examination requiring new therapy for esophageal and gastric varicose vein during the study period, (4)Repeated haemorrhoidal bleeding due to rectal varicose vein within 30 days prior to screening examination, (5)Diabetes mellitus with poorly controlled blood glucose, (6)Heart failure (NYHA class III or IV), (7)Anuria, (8)Impairment of urination due to urinary tract stricture, urinary calculus, tumor in the urinary tract, or other cause 2. Subjects with a history of any of the following diseases: (1) Cerebrovascular disorder within 30 days prior to the screening examination, (2)Episode of gout within 90 days prior to the screening examination, (3)Hypersensitivity or idiosyncratic reaction to benzazepine derivatives such as mozavaptan hydrochloride or benazepril hydrochloride. 3. Subjects who are obese (body mass index \[BMI, body weight (kg)/height (m)2\] exceeding 35) 4. Patients with supine systolic blood pressure exceeding 90 mmHg 5. Subjects with any of following abnormal laboratory values: hemoglobin exceeding 8.0 g/dL, total bilirubin exceeding 3.0 mg/dL, serum creatinine exceeding 3.0 mg/dL, serum sodium exceeding 147 mEq/L, serum potassium exceeding 5.5 mEq/L, or uric acid exceeding 8.0 mg/dL 6. Patients who are unable to take oral medication 7. Female subjects who are pregnant, possibly pregnant, or lactating, or who plan to become pregnant 8. Subjects who received blood products, including albumins, within 7 days prior to the screening examination 9. Subjects who received any investigational drug other than OPC-41061 within 30 days prior to the screening examination 10. Subjects who previously participated in this or any other study of OPC-41061 and received OPC-41061 11. Subjects otherwise judged by the investigator or subinvestigator to be inappropriate for inclusion in the study

Design outcomes

Primary

MeasureTime frameDescription
Body Weight (Amount of Change)Baseline, Day 7 or at the discontied of treatmentChanges in body wight from baseline at the final timepoint (LOCF). A linear regression model using changes in body weight from baseline at the final timepoint as the criterion variable and dose as the explanatory variable was fitted to the dataset.

Secondary

MeasureTime frameDescription
Abdominal CircumferenceBaseline, Day 7 or at the discontied of treatmentChange in abdominal circumference from baseline (LOCF)

Countries

Japan

Participant flow

Participants by arm

ArmCount
Placebo
Placebo, 1 tablet a day
26
OPC-41061 7.5 mg
7.5 mg, 1 tablet a day
25
OPC-41061 15 mg
15 mg, 1 tablet a day
25
OPC-41061 30 mg
30 mg, 1 tablet a day
25
Total101

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyAdverse Event1113
Overall StudyLack of Efficacy1000
Overall StudyPhysician Decision0102
Overall StudyProtocol Violation0100
Overall StudyResolution of all hepatic edema findings1100
Overall StudyWithdrawal by Subject1200

Baseline characteristics

CharacteristicPlaceboOPC-41061 7.5 mgOPC-41061 15 mgOPC-41061 30 mgTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
13 Participants14 Participants14 Participants12 Participants53 Participants
Age, Categorical
Between 18 and 65 years
13 Participants11 Participants11 Participants13 Participants48 Participants
Age, Continuous63.5 years
STANDARD_DEVIATION 10.1
64.5 years
STANDARD_DEVIATION 9.4
64.8 years
STANDARD_DEVIATION 9.7
62.8 years
STANDARD_DEVIATION 10.4
63.9 years
STANDARD_DEVIATION 9.8
Region of Enrollment
Japan
26 participants25 participants25 participants25 participants101 participants
Sex: Female, Male
Female
9 Participants7 Participants4 Participants10 Participants30 Participants
Sex: Female, Male
Male
17 Participants18 Participants21 Participants15 Participants71 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —
other
Total, other adverse events
18 / 2620 / 2519 / 2524 / 25
serious
Total, serious adverse events
5 / 260 / 251 / 253 / 25

Outcome results

Primary

Body Weight (Amount of Change)

Changes in body wight from baseline at the final timepoint (LOCF). A linear regression model using changes in body weight from baseline at the final timepoint as the criterion variable and dose as the explanatory variable was fitted to the dataset.

Time frame: Baseline, Day 7 or at the discontied of treatment

Population: Full Analysis Set; LOCF

ArmMeasureValue (MEAN)Dispersion
PlaceboBody Weight (Amount of Change)-0.68 KgStandard Deviation 2.5
OPC-41061 7.5 mgBody Weight (Amount of Change)-2.31 KgStandard Deviation 2.35
OPC-41061 15 mgBody Weight (Amount of Change)-1.88 KgStandard Deviation 2.45
OPC-41061 30 mgBody Weight (Amount of Change)-1.67 KgStandard Deviation 1.46
Comparison: A linear regression model using change in body weight from baseline at the final timepoint as the criterion variable and dose as the explanatory variable was fitted to the dataset. The null hypothesis of whether the regression coefficient is zero (analysis using t-statistics) was tested at a two-tailed significance level of 0.05, and estimated values for the slope and 95% confidence interval were calculated.p-value: 0.316795% CI: [-0.061, 0.02]Regression, Linear
Secondary

Abdominal Circumference

Change in abdominal circumference from baseline (LOCF)

Time frame: Baseline, Day 7 or at the discontied of treatment

Population: Full Analysis Set; LOCF

ArmMeasureValue (MEAN)Dispersion
PlaceboAbdominal Circumference-1.39 cmStandard Deviation 3.16
OPC-41061 7.5 mgAbdominal Circumference-2.98 cmStandard Deviation 3.22
OPC-41061 15 mgAbdominal Circumference-2.42 cmStandard Deviation 3.96
OPC-41061 30 mgAbdominal Circumference-2.62 cmStandard Deviation 2.83

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