Reversibility by Sildenafil of Exercise-Induced Abnormal Right Ventricular Pressure Response in ASD and VSD-Operated Patients

The recruitment status of this study is unknown because the information has not been verified recently.
Verified October 2008 by Oslo University Hospital.
Recruitment status was  Recruiting
Norwegian Foundation for Health and Rehabilitation
Information provided by:
Oslo University Hospital Identifier:
First received: October 14, 2008
Last updated: NA
Last verified: October 2008
History: No changes posted
The purpose of this study is to determine whether oral sildenafil citrate reduces the abnormal right ventricular pressure response during exercise in adolescent and adult patients with specific types of congenital heart defects.

Condition Intervention
Congenital Heart Disease
Drug: sildenafil citrate

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Pharmacodynamics Study
Intervention Model: Crossover Assignment
Masking: Double Blind (Subject, Caregiver, Investigator)
Primary Purpose: Basic Science
Official Title: Pulmonary Hypertension in Adolescents and Adults With Congenital Heart Disease

Resource links provided by NLM:

Further study details as provided by Oslo University Hospital:

Primary Outcome Measures:
  • Right ventricular pressure as measured by max velocity of tricuspid valve regurgitation [ Time Frame: baseline and max exercise ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • DLco (lung diffusion test) [ Time Frame: baseline and max exercise ] [ Designated as safety issue: No ]
  • cardiac output [ Time Frame: baseline and max exercise ] [ Designated as safety issue: No ]

Estimated Enrollment: 15
Study Start Date: September 2008
Estimated Study Completion Date: April 2009
Estimated Primary Completion Date: February 2009 (Final data collection date for primary outcome measure)
Intervention Details:
    Drug: sildenafil citrate
    capsule of 50 mg , 90 minutes before exercise study
  Show Detailed Description


Ages Eligible for Study:   16 Years to 25 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Exercise right ventricular systolic pressure of 45 mm Hg or above.
  • Operated for atrial septal defect or ventricular septal defect or minimal defect not operated or minimal residual defect.

Exclusion Criteria:

  • Acute infectious/febrile illness,
  • Significant mental or physical disability preventing reliable exercise testing
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00772135

Contact: Erik Thaulow, professor Dr Med +47 23074537
Contact: Henrik Holmstrom, dr med +47 23074541

Rikshospitalet University Hospital Recruiting
Oslo, Norway, 0027
Contact: Henrik Brun, MD    +4723074554   
Contact: per morten fredriksen, dr scient    +4723072277   
Sponsors and Collaborators
Oslo University Hospital
Norwegian Foundation for Health and Rehabilitation
  More Information

Responsible Party: Steinar Johansen, Foreningen for Hjertesyke Barn Identifier: NCT00772135     History of Changes
Other Study ID Numbers: RH 2008 HR 2006 / 2 / 0012 TM  2006 / 2 / 0012 
Study First Received: October 14, 2008
Last Updated: October 14, 2008
Health Authority: Norway:National Committee for Medical and Health Research Ethics

Keywords provided by Oslo University Hospital:
pulmonary hypertension
congenital heart defects
phosphodiesterase inhibitors
Exercise induced pulmonary arterial hypertensive response in congenital heart disease

Additional relevant MeSH terms:
Heart Defects, Congenital
Heart Diseases
Hypertension, Pulmonary
Cardiovascular Abnormalities
Cardiovascular Diseases
Congenital Abnormalities
Lung Diseases
Respiratory Tract Diseases
Sildenafil Citrate
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Phosphodiesterase 5 Inhibitors
Phosphodiesterase Inhibitors
Urological Agents
Vasodilator Agents processed this record on May 26, 2016