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Congestive Heart FailurePhase 4NCT01857999

Losartan in Decompensated Heart Failure

A Phase 4 study testing Losartan in people with Congestive Heart Failure and Low Cardiac Output, run by InCor Heart Institute at 1 site in Brazil.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The dual blockade of the renin-angiotensin-aldosterone system with an angiotensin-converting enzyme inhibitor and an angiotensin-receptor blocker used together in heart failure patients has been demonstrated to be beneficial. Read more about this study

Who is it for?
Any age
Conditions the study is for
Congestive Heart Failure, Low Cardiac Output
What is being tested?
Losartan
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
21 participants
Where
1 siteBrazil
Study dates
Sep 2008to Mar 2011
Phase
Phase 4
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • hospitalization for decompensated heart failure
  • dobutamine dependence
  • ejection fraction < 0.45
  • taking angiotensin-converting enzyme inhibitor

Who cannot join

  • serum creatinine > 3.0 mg/dL
  • serum potassium > 6.0 mEq/L
  • systolic blood pressure < 70 mm Hg
  • aortic stenosis
  • acute coronary syndrome in the previous 2 months

Trial locations and contacts

1 site in 1 country.

Brazil1 site
  • Cotoxó Hospital, Heart Institute (InCor), University of São Paulo

    São Paulo, São Paulo, 05021-010

Other trials in Brazil

About this study

Official title: Short-term add-on Therapy With Angiotensin Receptor Blocker for End-stage Inotrope-dependent Heart Failure Patients: B-type Natriuretic Peptide Reduction in a Randomized Clinical Trial

The dual blockade of the renin-angiotensin-aldosterone system with an angiotensin-converting enzyme inhibitor and an angiotensin-receptor blocker used together in heart failure patients has been demonstrated to be beneficial. However, the dual inhibition has not been studied during heart failure decompensation or even when low cardiac output is present.

The objective of this study was to assess the effects of add-on therapy with angiotensin receptor blocker on plasma B-type natriuretic peptide levels and hemodynamic measurements in heart failure patients with low cardiac output during hospitalization for decompensation.

This was a randomized, double-blind, placebo-controlled clinical trial.

Read the detailed description

The inclusion criteria were hospitalization for decompensated heart failure defined by worsening of symptoms until fatigue or dyspnea at rest, low cardiac output defined by the clinical-hemodynamic profile, dobutamine dependence, and ejection fraction < 0.45, spontaneous breathing and receiving angiotensin-converting enzyme inhibitors. The patients could have jugular ingurgitation, lower limbs edema, ascites and rales. Dobutamine dependence was defined by infusion for more than 15 days or an unsuccessful attempt of withdrawal.

The exclusion criteria were serum creatinine > 3.0 mg/dL, serum potassium > 6.0 mEq/L, systolic blood pressure < 70 mm Hg, aortic stenosis, and acute coronary syndrome in the previous 2 months. The patients were randomly assigned by permuted block of 4, stratified by sex, to losartan or placebo.

The endpoints were change in B-type natriuretic peptide levels, cardiac index, pulmonary wedge capillary pressure, systemic vascular resistance, and successful withdrawal of dobutamine.

Being tested
Losartan, Placebo
Keywords
Renin-aldosterone system, Hemodynamic, Low cardiac output, Vasodilation, Natriuretic peptide
Medical subject headings
Heart Failure, Cardiac Output, Low, Aneurysm

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • LosartanDrug

  • PlaceboDrug

Study groups in NCT01857999
Study groupRoleWhat they receive
LosartanExperimentalLosartan 50 mg bid orally
Receives: Drug: Losartan
PlaceboPlacebo comparatorPlacebo 1 pill bid orally
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. B-type natriuretic peptide

    Serum B-type natriuretic peptide

    Measured: 7 days

Secondary outcomes (4)
  1. Successful withdrawal from dobutamine

    Successful withdrawal from dobutamine with clinical stability

    Measured: 7 days

  2. Worsening renal function

    Increase > 0.3 mg/dL in serum creatinine

    Measured: 7 days

  3. Hyperkalemia

    Serum potassium > 5.5 mEq/L

    Measured: 7 days

  4. Hypotension

    Systolic blood pressure < 80 mmHg

    Measured: 7 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted20 May 2013 (estimated)
  2. Study startSep 2008
  3. Primary completionFeb 2011
  4. Study completionMar 2011

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
21 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01857999
Sponsor's protocol ID
INCOR 2993/07/008
Status last verified
Mar 2011
First submitted
16 May 2013
Last updated
20 May 2013
Results posted
No
Data monitoring committee
Yes

Publications

  • Ochiai ME, Brancalhao EC, Puig RS, Vieira KR, Cardoso JN, Oliveira MT Jr, Barretto AC. Short-term add-on therapy with angiotensin receptor blocker for end-stage inotrope-dependent heart failure patients: B-type natriuretic peptide reduction in a randomized clinical trial. Clinics (Sao Paulo). 2014;69(5):308-13. doi: 10.6061/clinics/2014(05)02.

    PubMed 24838894

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Losartan in people with Congestive Heart Failure and Low Cardiac Output, run by InCor Heart Institute at 1 site in Brazil.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 20 May 2013. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Brazil. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

B-type natriuretic peptide (time frame: 7 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01857999, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 May 2013.

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Losartan in Decompensated Heart Failure (NCT01857999) | AzTrials