Placebo-Controlled Randomized Study of KW-3902 for Subjects Hospitalized With Worsening Renal Function and Heart Failure Requiring IV Therapy (REACH UP)

February 19, 2009 updated by: NovaCardia, Inc.

A Multicenter, Randomized, Double-Blind, Placebo-Controlled Study of the Effects of KW-3902 Injectable Emulsion on Heart Failure Signs and Symptoms, Diuresis, Renal Function, and Clinical Outcomes in Subjects Hospitalized With Worsening Renal Function and Heart Failure Requiring Intravenous Therapy

To evaluate the effect of KW-3902IV, in addition to standard therapy, on the proportion of worsening heart failure and worsening renal function, and on the proportion of deaths or rehospitalizations for heart failure or worsening renal function, and to estimate and compare within-trial medical resource utilization and direct medical costs between subjects treated with KW 3902IV versus placebo.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Loop diuretics are generally first line therapy in patients hospitalized with acute heart failure syndrome (AHFS). Their use far exceeds that of vasoactive agents. Tubuloglomerular feedback (TGF) is the body's compensatory response to avoid excess fluid loss, and it is activated when elevated sodium concentrations in the distal tubule are detected. TGF is proposed as a contributing factor for the observed diuretic resistance that occurs in patients with heart failure. Higher doses of diuretics are required to overcome the decreased natriuresis and reduced RBF induced by TGF. Ultimately, this action creates a vicious cycle of worsening renal function and diminished diuretic effectiveness.

The primary pharmacologic rationale for the use of KW-3902 in subjects with AHFS is its mechanism of action as an adenosine A1 receptor antagonist. TGF promotes release of adenosine, and adenosine binding to A1 receptors causes vasoconstriction of the afferent arteriole, decreased RBF, and enhanced sodium reabsorption by the proximal tubule. This action results in a decrease in GFR, diminished renal function, and sodium and water retention. Blocking adenosine A1 receptors via a selective adenosine receptor antagonist may limit sodium reabsorption by the proximal tubules without triggering TGF. It promotes vasodilation of the afferent arteriole of the glomerulus, and thus, this strategy offers the potential to overcome diuretic resistance or enhance diuretic responsiveness. It may also reduce the need for increasing diuretic doses that have been associated with worse outcomes.

Study Type

Interventional

Enrollment (Anticipated)

480

Phase

  • Phase 3

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Dyspnea at rest or with minimal exertion at randomization
  • Fluid overload
  • Estimated creatinine clearance (CrCl) between 20-60 mL/min
  • Worsening renal function
  • Anticipated need for IV diuretic treatment for at least 48 hours after the start of study drug
  • BNP >500 pg/mL or NT-pro-BNP >2000 pg/mL
  • Systolic blood pressure ≥90 mmHg at randomization

Exclusion Criteria:

  • IV radiographic contrast within 14 days
  • IV vasodilators within 6 hours
  • Serum potassium <3.5 meq/L
  • Ongoing or planned therapy for heart failure with mechanical circulatory or ventilatory support
  • Ongoing or planned treatment with ultrafiltration, hemofiltration, or dialysis
  • Rapidly progressive acute renal failure
  • Evidence of acute tubular necrosis or post-obstructive nephropathy or other exogenous causes of acute kidney injury, unrelated to heart failure
  • Severe pulmonary disease
  • Significant stenotic mitral or aortic valvular disease
  • Heart transplant recipient or admitted for cardiac transplantation or LVAD surgery
  • Any major surgery within 2 weeks prior
  • evidence of acute coronary syndrome in the 2 weeks prior
  • Hgb <8 g/dL, Hct <25%, or active bleeding requiring transfusion
  • Acute myocarditis or hypertrophic obstructive, restrictive, or constrictive cardiomyopathy.
  • Known hepatic impairment
  • Non-cardiac pulmonary edema
  • Temperature >38°C
  • Sepsis or active infection requiring IV anti-microbial treatment
  • Administration of an investigational drug or device within 30 days
  • Current or anticipated therapy with atazanavir, clarithromycin, indinavir, itraconazole, ketoconazole, nefazodone, nelfinavir, ritonavir, saquinavir, telithromycin, or voriconazole
  • Administration of any vasopressor or inotropic drug within 72 hours
  • History of seizure (except febrile seizure)
  • Stroke within 2 years
  • History of brain tumor of any etiology
  • Brain surgery within 2 years
  • Encephalitis/meningitis within 2 years
  • History of penetrating head trauma
  • Closed head injury with loss of consciousness (LOC) over 30 minutes within 2 years
  • History of or at risk for alcohol withdrawal seizures
  • Advanced Alzheimer's disease
  • Advanced multiple sclerosis

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Placebo Comparator: 2
placebo control
rolofylline Pbo 30 mg IV QD; 3 days
Experimental: 1
KW-3902IV
rolofylline 30 mg IV QD; 3 days
Other Names:
  • MK7418
  • KW-3902IV

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Effect on heart failure signs and symptoms
Time Frame: through day 7
through day 7
Effect on renal function
Time Frame: through Day 7
through Day 7

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Collaborators

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

August 1, 2007

Primary Completion (Actual)

January 1, 2009

Study Completion (Actual)

January 1, 2009

Study Registration Dates

First Submitted

March 2, 2007

First Submitted That Met QC Criteria

March 2, 2007

First Posted (Estimate)

March 6, 2007

Study Record Updates

Last Update Posted (Estimate)

February 20, 2009

Last Update Submitted That Met QC Criteria

February 19, 2009

Last Verified

February 1, 2009

More Information

Terms related to this study

Other Study ID Numbers

  • CKI-303
  • 2007_805
  • MK7418-303

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.