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A Study of the Effectiveness of Sitaxsentan Sodium in Patients With Diastolic Heart Failure

NCT00303498 · Status: COMPLETED · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 200

Last updated 2023-01-04

Study results available
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Summary

The aim of this study was to determine whether long-term (≥ 6 months at the target dose) blockade of ETA receptors using sitaxsentan showed functional benefit in subjects with chronic Heart Failure and an Left Ventricular Ejection Fraction ≥50%.

Conditions

  • Diastolic Heart Failure

Interventions

DRUG

Sitexsentin sodium

sitaxsentan 100 mg (target dose) 0rally once daily. A 10-week Run-In Phase was conducted where dosing commenced at 25 mg daily for 2 weeks, and then was stepped up to 50 mg daily for 2 weeks, to 75 mg daily for 2 weeks and then to 100 mg daily for 2 weeks, with an additional 2-week stabilization period (10 weeks total) to a target study dose of 100 mg daily. During the Run-In Phase, if a subject was not able to tolerate upward dose titration to the target dose of 100 mg, the investigator may have elected to continue at the current dosage or reduce the dosage of sitaxsentan or placebo to the subject's immediate prior dose. During the Maintenance Phase, subjects received the highest titrated dose reached of study drug and continued it through the last day of Week M24 of the Maintenance Phase (14 weeks)- total study drug treatment duration= 6 months

DRUG

Placebo

placebo identical to the study drug in description, dose and duration

Sponsors & Collaborators

Principal Investigators

  • Pfizer CT.gov Call Center · Pfizer

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2006-03-27
Primary Completion
2008-05-01
Completion
2008-05-01

Countries

  • United States
  • Canada

Study Locations

More Related Trials

Entities

Drugs
Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00303498 on ClinicalTrials.gov