A Trial of OPC-41061 in Patients With Hepatic Edema - Investigation of the Safety of Treatment at 7.5 mg Beyond 7 Days and of the Effect of Dose Escalation to 15 mg

This study has been completed.
Information provided by (Responsible Party):
Otsuka Pharmaceutical Co., Ltd.
ClinicalTrials.gov Identifier:
First received: January 7, 2010
Last updated: March 13, 2016
Last verified: March 2016
OPC-41061 will be orally administered at 7.5 mg/day for 7 days to cirrhosis patients with ascites despite having received conventional diuretic therapy. Based on the change in body weight, on Day 7 it will be decided whether to continue administration at the same dose or to increase the dose, and then OPC-41061 will be orally administered for an additional 7 days at either 7.5 mg/day or, if diuretic effect for the initial 7-day administration is insufficient, at an increased dose of 15 mg/day. Plasma drug level, efficacy, and safety of OPC-41061 by 14-day repeated administration will be investigated.

Condition Intervention Phase
Drug: OPC-41061
Phase 3

Study Type: Interventional
Study Design: Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: A Multicenter, Uncontrolled, Open-label Phase 3 Trial of OPC-41061 in Patients With Hepatic Edema - Investigation of the Safety of Treatment at 7.5 mg Beyond 7 Days and of the Effect of Dose Escalation to 15 mg

Resource links provided by NLM:

Further study details as provided by Otsuka Pharmaceutical Co., Ltd.:

Primary Outcome Measures:
  • Body Weight [ Time Frame: Baseline, Day 14 or end of administration ] [ Designated as safety issue: No ]
    Changes in body weight from baseline at the end of administration

Enrollment: 51
Study Start Date: December 2009
Study Completion Date: August 2011
Primary Completion Date: August 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: OPC Drug: OPC-41061
OPC-41061 tablets will be orally administered once daily after breakfast at 7.5 mg on Day 1 to 7 and at either 7.5 or 15 mg on Day 8 to 14.


Ages Eligible for Study:   20 Years to 80 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Patients judged as having cirrhosis* based on previous imaging diagnosis

    • Definition of cirrhosis includes patients with collateral circulation due to chronic hepatic impairment
  • Patients with ascites in whom the dose of existing diuretics cannot be increased due to risk of adverse drug reactions such as electrolyte abnormalities, or in whom sufficient therapeutic effect cannot be obtained with existing diuretics
  • Patients who have been receiving oral combination therapy with a loop diuretic and an anti-aldosterone agent from at least 7 days prior to receipt of informed consent, with a dose combination of either loop diuretic equivalent to furosemide 40 mg/day or higher plus spironolactone 25 mg/day or higher, or loop diuretic equivalent to furosemide 20 mg/day or higher plus spironolactone 50 mg/day or higher
  • Patients who are hospitalized or who can be hospitalized for the trial
  • Patients capable of giving informed consent
  • Patients who, together with their partner, agree to use an appropriate method of contraception until 4 weeks after the final trial drug administration

Exclusion Criteria:

  • Patients with any of the following complications or symptoms:
  • Hepatic encephalopathy (hepatic coma of grade 2 or higher)
  • Hepatocellular carcinoma with imaging-diagnosed vascular infiltration into trunk or primary branch of portal vein, inferior vena cava, or trunk of hepatic vein
  • Endoscopic findings from screening examination or from within 30 days prior to screening examination indicating the need for new therapy for esophageal or gastric varices during the trial period
  • Repeated hemorrhoidal bleeding due to rectal varicose veins within 30 days prior to informed consent
  • Heart failure (New York Heart Association Class III or IV)
  • Anuria
  • Impaired urination due to urinary tract stricture, urinary calculus, tumor in urinary tract, or other cause
  • Patients with a history of any of the following disorders:
  • Cerebrovascular disorder within 30 days prior to informed consent
  • Hypersensitivity or idiosyncratic reaction to benzazepine derivatives (such as mozavaptan hydrochloride or benazepril hydrochloride)
  • Morbidly obese patients with a body mass index (BMI: body weight (kg)/height (m)2) exceeding 35
  • Patients with sitting systolic blood pressure lower than 90 mmHg
  • Patients with any of following abnormal clinical laboratory values at time of the screening examination: Hemoglobin lower than 8.0 g/dL, total bilirubin higher than 4.0 mg/dL, serum creatinine higher than 2.0 mg/dL, serum sodium higher than 147 mEq/L, or serum potassium higher than 5.5 mEq/L
  • Patients who are unable to take oral medication
  • Female patients who are pregnant, possibly pregnant, or breast-feeding, or who are planning to become pregnant
  • Patients who have used albumin preparations (therapeutic agents for hypoalbuminemia) or blood products containing albumin from within 7 days prior to informed consent
  • Patients who received any investigational drug other than OPC-41061 within 30 days prior to informed consent
  • Patients who have previously received OPC-41061
  • Any patient who, in the opinion of the principle investigator or subinvestigator, is inappropriate for participation in the trial
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Please refer to this study by its ClinicalTrials.gov identifier: NCT01048788

Chubu Region, Japan
Chugoku Region, Japan
Kanto Region, Japan
Kinki Region, Japan
Kyushu Region, Japan
Tohoku Region, Japan
Sponsors and Collaborators
Otsuka Pharmaceutical Co., Ltd.
  More Information

Responsible Party: Otsuka Pharmaceutical Co., Ltd.
ClinicalTrials.gov Identifier: NCT01048788     History of Changes
Other Study ID Numbers: 156-08-002  JapicCTI-100983 
Study First Received: January 7, 2010
Results First Received: December 15, 2013
Last Updated: March 13, 2016
Health Authority: Japan: Ministry of Health, Labor and Welfare

Keywords provided by Otsuka Pharmaceutical Co., Ltd.:

Additional relevant MeSH terms:
Antidiuretic Hormone Receptor Antagonists
Molecular Mechanisms of Pharmacological Action
Natriuretic Agents
Physiological Effects of Drugs

ClinicalTrials.gov processed this record on May 26, 2016