Efficacy and Safety Study of Tolvaptan to Treat Patients With Cardiac Edema

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
Otsuka Beijing Research Institute
ClinicalTrials.gov Identifier:
NCT01651156
First received: July 24, 2012
Last updated: December 25, 2013
Last verified: December 2013
  Purpose

A randomized, double-blind, multicenter, placebo-controlled, parallel study to evaluate the efficacy and safety of Tolvaptan in the treatment of patients with cardiac edema (body fluid retention caused by congestive heart failure) based on the conventional therapy.

To evaluate the efficacy and safety of Tolvaptan 15 mg on congestive heart failure patients with body fluid retention after current diuretic treatment, after continuous treatment of 7 days' oral Tolvaptan 15mg or placebo.


Condition Intervention Phase
Cardiac Edema
Drug: Tolvaptan
Drug: Placebo
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Randomized, Double-blind, Multicenter, Placebo-controlled, Parallel Phase 3 Study to Evaluate the Efficacy and Safety of Tolvaptan in the Treatment of Patients With Cardiac Edema Based on the Conventional Therapy

Resource links provided by NLM:


Further study details as provided by Otsuka Beijing Research Institute:

Primary Outcome Measures:
  • body weight (change from baseline) [ Time Frame: screening day, Day-3, Day-2, Day-1, Day1, Day2, Day3, Day4, Day5, Day6, Day7, Day8, Day(7+3) ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Body weight (percent change from baseline) [ Time Frame: screening day, Day-3, Day-2, Day-1, Day1, Day2, Day3, Day4, Day5, Day6, Day7, Day8, Day(7+3) ] [ Designated as safety issue: No ]

Enrollment: 244
Study Start Date: July 2012
Study Completion Date: July 2013
Primary Completion Date: July 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Placebo Comparator: placebo
Frequency: once per day Duration: 7days
Drug: Placebo
Experimental: Tolvaptan
Tolvaptan tablet Frequency: once per day Duration: 7days
Drug: Tolvaptan
oral taken
Other Name: Samsca

Detailed Description:
  • A randomized, double-blind, multicenter, placebo-controlled, parallel study
  • Study population: The congestive heart failure patients with body fluid retention after received current diuretics therapy
  • Number of patients: Patients will be randomly assigned to Tolvaptan and placebo group in 1:1 ratio, 120 patients in each group, 240 patients in total
  • Group assignment method: Tolvaptan 15 mg group: conventional therapy + Tolvaptan 15 mg Placebo group: conventional therapy + placebo
  • Administration and dosage of the study drug: Once daily, 1 tablet be taken orally after breakfast, for successive 7 days
  • Study period:
  • Screening period (4 days in minimum, 7 days in maximum), including:

Screening period: from the time the informed consent form is signed to Day -4 Observation period: 3 days before drug administration

  • Treatment period: 7 days
  • Follow up visits: Day 8 (efficacy evaluation day) and Day 7 (+3) after the last dosing
  • Post treatment survey: Day 14 (+3) after the last dosing
  Eligibility

Ages Eligible for Study:   20 Years to 85 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Patients treated with one of the oral diuretic therapy standards (include the patients who will be treated with one of the oral diuretic therapy standards from the beginning of the observation period):

    1. Only 40 mg/day furosemide taken orally or other oral loop diuretics equivalent to 40 mg/day furosemide note 1)
    2. Combination treatment of oral loop diuretics and thiazide diuretics (no dosage limitation)
    3. Combination treatment of oral loop diuretics and aldosterone antagonists (no dosage limitation)
  • Because of the existence of excess body fluid retention, the congestive heart failure patient has at least one of these symptoms (the lower extremity edema, pulmonary congestion note 2), or jugular vein engorgement).
  • 20-85 years of age (inclusive) at the time of signing the informed consent document.
  • Gender: male or female.
  • Inpatients or patient who would be hospitalized from one day before the observation period to the end of efficacy evaluation examination after the last dosing (from Day -4 to the end of efficacy evaluation examination after the last dosing).
  • Patient who have signed the informed consent form.

Exclusion Criteria:

  • Patients equipped with circulatory assistant device.
  • Patients with any of following diseases, complications or symptoms:

    1. Suspected decreased blood volume
    2. Obstructive hypertrophic cardiomyopathy
    3. Severe aortic stenosis
    4. Hepatic coma
  • Patients with history of acute myocardial infarction within 30 days prior to screening.
  • Patients with diagnosed active myocarditis or amyloid cardiomyopathy.
  • Patients with the following diseases, complications or symptoms:

    1. Poorly controlled diabetes with a fasting glucose more than 220 mg/dL (or 12.21 mmol/L)
    2. Anuria
    3. Dysuria caused by urethral stricture, calculus or tumor
  • Patients with the following medical history of:

    1. Sustained ventricular tachycardia or ventricular fibrillation within 30 days prior to screening
    2. History of cerebrovascular accident within the past 30 days
    3. Past allergy or hypersensitive reactions to benzodiazepines (e.g. mozavaptan hydrochloride or benazepril hydrochloride)
  • Obese patients whose body mass index (BMI = body weight (kg) / height (m)2 ) is more than 35.
  • Patients with systolic pressure below 90 mmHg in supine position.
  • Patients with any of the following abnormal laboratory test parameters:

    1. Total bilirubin > 2.5 times the upper limits of normal value
    2. Serum creatine > 2.5 times the upper limits of normal value
    3. Serum Na+ > 145 mmol/L (or higher than the upper limits of normal value)
    4. Serum K+ > 5.5 mmol/L
  • Patients who unable to take medicine orally.
  • Female patients who are pregnant, breast-feeding, at childbearing ages, or with pregnancy plan.
  • Patients who participated in clinical trials of other medicine and took other study drugs within 30 days prior to sign the informed consent form.
  • Patients who participated in the clinical trial of Tolvaptan and took Tolvaptan previously.
  • Patients who have received approved Tolvaptan tablets (Trade name: Samsca) previously.
  • Except for the above, patients who were unsuitable to participate in this trial in the investigator's opinion.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01651156

Locations
China, Zhejiang
Zhejiang Hospital
Hangzhou, Zhejiang, China, 310013
Sponsors and Collaborators
Otsuka Beijing Research Institute
Investigators
Principal Investigator: Zhang Jian Fuwai Cardiovascular hospital
  More Information

No publications provided

Responsible Party: Otsuka Beijing Research Institute
ClinicalTrials.gov Identifier: NCT01651156     History of Changes
Other Study ID Numbers: 156-12-809-01
Study First Received: July 24, 2012
Last Updated: December 25, 2013
Health Authority: China: Food and Drug Administration

Additional relevant MeSH terms:
Edema
Edema, Cardiac
Signs and Symptoms
Heart Failure
Heart Diseases
Cardiovascular Diseases

ClinicalTrials.gov processed this record on September 30, 2014