Completed

A Multi-center, Double-Blind, Randomized, Parallel Group Study to Evaluate the Effects of Two Different Doses of Losartan on Morbidity and Mortality in Patients With Symptomatic Heart Failure Intolerant of ACE Inhibitor Treatment

What is being tested

Losartan 50 mg

+ Losartan 150 mg

Drug

Who is being recruted

Cardiovascular Diseases

+ Heart Diseases

+ Heart Failure

Over 18 Years

+2 Eligibility Criteria

See all eligibility criteria

How is the trial designed

Treatment Study

Phase 3

Interventional

Study Start: December 2001

See protocol details

Summary

Principal SponsorOrganon and Co

Last updated: January 28, 2026

Sourced from a government-validated database.Claim as a partner

Study start date: December 19, 2001

Actual date on which the first participant was enrolled.

This is a multicenter study to evaluate potential decrease in hospitalization events and time between events and increasing longevity in patients with symptomatic congestive heart failure and intolerant of first-line medication for heart failure. This study will evaluate if higher doses of the investigational drug given daily will be superior to the lower dose of the same investigational drug given daily.

Official TitleA Multi-center, Double-Blind, Randomized, Parallel Group Study to Evaluate the Effects of Two Different Doses of Losartan on Morbidity and Mortality in Patients With Symptomatic Heart Failure Intolerant of ACE Inhibitor Treatment

NCT00090259

Principal SponsorOrganon and Co

Last updated: January 28, 2026

Sourced from a government-validated database.Claim as a partner

Protocol

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

Design Details

3834 patients to be enrolled

Total number of participants that the clinical trial aims to recruit.

Treatment Study

These studies test new ways to treat a disease, condition, or health issue. The goal is to see if a new drug, therapy, or approach works better or has fewer side effects than existing options.

Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.

Conditions

Criteria

Any sex

Biological sex of participants that are eligible to enroll.

Over 18 Years

Range of ages for which participants are eligible to join.

Healthy volunteers not allowed

If individuals who are healthy and do not have the condition being studied can participate.

Conditions

Pathology

Cardiovascular DiseasesHeart DiseasesHeart Failure

Criteria

2 inclusion criteria required to participate

Symptomatic heart failure with known or recently diagnosed intolerance of treatment with first-line medication for heart failure

May or may not be receiving an alternative and/or additional drug treatment

Study Plan

Find out more about all the medication administered in this study, their detailed description and what they involve.

Treatment Groups

Study Objectives

2 intervention groups are designated in this study

This study does not include a placebo group

Treatment Groups

Group I

Experimental

50-mg losartan tablet administered daily with 1 tablet of 100-mg losartan placebo beginning Week 1 and continuing to end of study (up to 4 years)

Group II

Experimental

Titrated losartan administration up to daily 150-mg losartan: Week 1, daily 50-mg losartan tablet coadministered with 100-mg losartan placebo; Week 2, daily 50-mg losartan placebo coadministered with 100-mg losartan; Week 3 to end of study (up to 4 years), daily 50-mg losartan tablet coadministered with 100-mg losartan

Study Objectives

Primary Objectives

Secondary Objectives

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.

This study has no location dataSave this study to your profile to know when the location data is available.

CompletedNo study centers