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Pulmonary Arterial Hypertension Secondary to Idiopathic Pulmonary Fibrosis And Treatment With Sildenafil

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified February 2008 by University of California, Los Angeles.
Recruitment status was:  Recruiting
Information provided by:
University of California, Los Angeles Identifier:
First received: February 19, 2008
Last updated: NA
Last verified: February 2008
History: No changes posted
Pulmonary Arterial Hypertension (PAH) in the setting of Idiopathic Pulmonary Fibrosis(IPF)is a risk factor for morbidity and mortality in the peri-lung transplant(LT) setting. Currently there is no significant data to support the use of pulmonary vasodilators for PAH in the setting of interstitial lung disease such as IPF. The majority of IPF patients have PAH either at rest or during exercise. The study hypothesis is that sildenafil may improve morbidity and mortality in the peri-LT setting in both IPF cohorts with either resting or exercise PAH.

Condition Intervention Phase
Pulmonary Arterial Hypertension
Idiopathic Pulmonary Fibrosis
Interstitial Lung Disease
Pulmonary Hypertension
Drug: sildenafil
Phase 4

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Randomized Placebo-Controlled Study of Sildenafil For The Treatment of Pulmonary Arterial Hypertension Secondary to Idiopathic Pulmonary Fibrosis: A Pilot Study

Resource links provided by NLM:

Further study details as provided by University of California, Los Angeles:

Primary Outcome Measures:
  • 6 minute walk distance [ Time Frame: monthly until date of lung transplantation ]

Secondary Outcome Measures:
  • Right heart catheterization hemodynamics [ Time Frame: initial right heart catheterization compared to catheterization done on day of lung transplantation ]
  • chemokine analysis on peripheral blood [ Time Frame: monthly ]
  • quality of life assessment [ Time Frame: monthly ]

Estimated Enrollment: 50
Study Start Date: February 2007
Estimated Study Completion Date: December 2009
Estimated Primary Completion Date: June 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Placebo Comparator: 1
There are two placebo comparators.... one for the group of patients with resting PAH and another for the group of patients with exercise PAH
Drug: sildenafil
sildenafil (placebo) 20mg three times per day (orally)
Active Comparator: 2
There are two active comparators, one group with resting PAH and another with exercise PAH, both receiving drug
Drug: sildenafil
sildenafil 20mg three times per day (orally)
Other Name: Revatio
No Intervention: 3
this group of patients has no evidence for either resting or exercise PAH but will be followed without specific drug intervention


Ages Eligible for Study:   Child, Adult, Senior
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Patients with Idiopathic Pulmonary Fibrosis referred for lung transplantation at our medical center
  • Minimal 6 minute walk distance of 50 meters; must be able to conduct supine exercise during heart catheterization

Exclusion Criteria:

  • Non ambulatory
  • Prior adverse reaction/allergy to sildenafil or other PDE-5 Inhibitors
  • Any other pulmonary vasodilator within one month of enrollment
  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: NCT00625079

Contact: Rajan Saggar, MD 310-825-5635
Contact: Michaela Dyke 310-825-5635

United States, California
David Geffen School of Medicine UCLA Recruiting
Los Angeles, California, United States, 90095-1690
Contact: Michaela Dyke    310-825-5635   
Sponsors and Collaborators
University of California, Los Angeles
Study Director: Rajan Saggar, MD David Geffen School of Medicine, UCLA
  More Information

Responsible Party: Rajan Saggar, David Geffen School of Medicine UCLA Identifier: NCT00625079     History of Changes
Other Study ID Numbers: IPF/PH
Study First Received: February 19, 2008
Last Updated: February 19, 2008

Keywords provided by University of California, Los Angeles:
pulmonary hypertension
pulmonary arterial hypertension
interstitial lung disease
idiopathic pulmonary fibrosis

Additional relevant MeSH terms:
Lung Diseases
Hypertension, Pulmonary
Familial Primary Pulmonary Hypertension
Pulmonary Fibrosis
Idiopathic Pulmonary Fibrosis
Idiopathic Interstitial Pneumonias
Lung Diseases, Interstitial
Vascular Diseases
Cardiovascular Diseases
Pathologic Processes
Respiratory Tract Diseases
Sildenafil Citrate
Vasodilator Agents
Phosphodiesterase 5 Inhibitors
Phosphodiesterase Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Urological Agents processed this record on May 25, 2017