AzTrials
AzTrials

Eisenmenger SyndromePhase 3NCT00303004

Combination Treatment With Bosentan and Sildenafil to Patients With Eisenmengers Syndrome

A Phase 3 study testing Bosentan and Sildenafil in people with Eisenmenger Syndrome, run by Copenhagen University Hospital, Rigshospitalet at 1 site in Denmark.

Completed

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

Official record
Search all trials

Trial summary

The purpose of this study is to investigate if combination treatment with Bosentan and Sildenafil to patients with Eisenmenger syndrome is beneficial. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Eisenmenger Syndrome
What is being tested?
Bosentan and Sildenafil
How many people
20 participants
Where
1 siteDenmark
Study dates
Mar 2006to Jan 2008
Phase
Phase 3
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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Eisenmenger syndrome
  • Negative pregnancy test

Who cannot join

  • Elevated liver enzymes to more than 3´times normal value
  • Hypotension (SBP < 90 mmhg).
  • Mandatory treatment with nitrates
  • Myocardial infarction within 3 months
  • Stroke within 3 months
  • Known allergy to Bosentan or Sildenafil
Show all 9Show fewer
  • inherited degenerative diseases in retina
  • Breast feeding
  • Suspicion of risc of noncompliance.

Trial locations and contacts

1 site in 1 country.

Denmark1 site
  • Rigshospitalet

    Copenhagen, 2100

Other trials in Denmark

About this study

The purpose of this study is to investigate if combination treatment with Bosentan and Sildenafil to patients with Eisenmenger syndrome is beneficial.

Read the detailed description

Eisenmengers syndrome is condition with severe pulmonary arterial hypertension due to a shunting of blood from the left side of the heart to the right side of the heart. When the pressure in the pulmonary arteries levels the systemic blood pressure, blood begins to shunt from the right side of the heart to the left side of the heart leading to a condition with cyanosis, impaired physical capacity and increased mortality (Eisenmengers syndrome).

Several clinical trials have shown that there is a beneficial effect of treating patients with primary pulmonary arterial hypertension with Bosentan or Sildenafil and that a combination of these may have an additive or even synergistic effect. No clinical trials with Sildenafil and Bosentan has been conducted for patients with Eisenmengers syndrome. Observational studies and case stories indicate however that the effect of Bosentan or Sildenafil in patients with Eisenmengers syndrome may be as promising in these patients as in patients with primary pulmonary arterial hypertension.

We would like to examine the effect of treating patients with Eisenmengers Syndrome with a combination of Bosentan and Sildenafil.

The primary end point is change in physical performance measured with six minutes walking test.

Secondary end points is change in saturation, NYHA class, cardiac output (cardiac catheterization and innocor measurement), pulmonary vascular resistance (cardiac catheterization) shunt ratio (MRI), strain of right ventricle (BNP and echocardiography), quality of life and serum erythropoitin.

The trial is designed as a randomized, single centre, placebo controlled, double blind cross over study.

Twenty patients with Eisenmengers syndrome is included. All patients will be treated in three months with Bosentan. There after patients will be randomized to receive either Sildenafil (50 mg tid) or placebo as add on therapy for three month. Hereafter a cross over will be made and patients in combination treatment will receive only their native treatment and vice versa.

Examinations for primary and secondary endpoints will be made at baseline, before cross over and at the end of the study. All up titrating of medication will be performed during admittance. Patients will during the study period be close monitored with registration of adverse advents, physical examination and blood tests.

Being tested
Bosentan and Sildenafil
Medical subject headings
Eisenmenger Complex

What participants receive

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

  • Bosentan and SildenafilDrug

What is being measured

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

  1. 6 minutes walking distance

Secondary outcomes (13)
  1. Pulmonary blood flow

  2. Systemic blood flow

  3. Pulmonary resistance

  4. Shunt ratio

  5. Erythropoitin

  6. BNP

  7. Saturation in rest

  8. Saturation in activity

  9. Quality of life

  10. Right ventricle systolic and diastolic function

  11. Working capacity

  12. Oxygen consumption at rest

  13. Oxygen consumption during maximal work

Timeline

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

  1. First posted15 Mar 2006 (estimated)
  2. Study startMar 2006
  3. Primary completionJan 2008
  4. Study completionJan 2008

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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Double blind
Enrolment
20 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00303004
Sponsor's protocol ID
01000
Status last verified
Jan 2008
First submitted
14 Mar 2006
Last updated
24 Jan 2008
Results posted
No
Data monitoring committee
Yes

Publications

  • Iversen K, Jensen AS, Jensen TV, Vejlstrup NG, Sondergaard L. Combination therapy with bosentan and sildenafil in Eisenmenger syndrome: a randomized, placebo-controlled, double-blinded trial. Eur Heart J. 2010 May;31(9):1124-31. doi: 10.1093/eurheartj/ehq011. Epub 2010 Mar 3.

    PubMed 20202971

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Bosentan and Sildenafil in people with Eisenmenger Syndrome, run by Copenhagen University Hospital, Rigshospitalet at 1 site in Denmark.

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 2 inclusion and 9 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 24 Jan 2008. 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 Denmark. 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. 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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?

6 minutes walking distance. 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 NCT00303004, 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 24 Jan 2008.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in