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Chronic Obstructive Pulmonary DiseasePhase 4NCT01382368

Acute Effect of Sildenafil on Exercise Tolerance and Functional Capacity in COPD, IPF and Post Pneumonectomy Patients

A Phase 4 study testing Sildenafil in people with Chronic Obstructive Pulmonary Disease and Idiopathic Pulmonary Fibrosis, run by Rabin Medical Center at 1 site in Israel.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Pulmonary diseases are increasingly important causes of morbidity and mortality in the modern world. Sildenafil, an orally administered a phosphodiesterase type 5 (PDE-5) inhibitor, targets the nitric oxide (NO) pathway. The drug was first approved for the treatment of Pulmonary Arterial Hypertension (PAH) in 2005. Read more about this study

Who is it for?
Ages 30 to 90 years
What is being tested?
Sildenafil
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
60 participants
Where
1 siteIsrael
Study dates
Sep 2011to Sep 2013
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 30 to 90 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients with severe COPD GOLD stage III- IV, FEV1 30-50% or less of predicted values, greater shortness of breath, reduced exercise capacity, repeated excretions and\ or with chronic respiratory failure [9, 39].
  • IPF patients diagnosed essentially according to the American Thoracic and European Respiratory Societies (ATS-ERS) by clinical diagnostic criteria of: (a) High-resolution computed tomography (HRCT) demonstrating a pattern of "confident" or "possible" IPF (b) Abnormal pulmonary physiology with evidence of restriction and/or impaired gas exchange (can exist during exercise alone) (c) Exclusion of other known causes of interstitial lung disease (e.g.: connective tissue disease, environmental exposure,etc.)[31].
  • Patients post Pneumonectomy more than 6 month from the amputation surgery for any diagnosis (Cancer, Trauma, and Infection- Bronchiectasis).

Who cannot join

  • Patients with known sensitivity or contraindications to phosphodiesterase 5 (PDE-5) inhibitor therapies will be excluding from the study.
  • Thromboembolic disease will be excluded by pulmonary CT-angiography or perfusion scan.
  • Patients with a history of left-sided heart failure will be excluded.
  • Patients will also exclude if they are on regular treatment with nitrates or PDE-5 inhibitors (Sildenafil, Tadalafil, Vardenafil).

Trial locations and contacts

1 site in 1 country.

Israel1 site
  • Pulmonary Institute, Rabin Medical Center, Beilinson Hospital

    Petah Tikva, 49100

Other trials in Israel

About this study

  • Pulmonary diseases are increasingly important causes of morbidity and mortality in the modern world.
  • Sildenafil, an orally administered a phosphodiesterase type 5 (PDE-5) inhibitor, targets the nitric oxide (NO) pathway. The drug was first approved for the treatment of Pulmonary Arterial Hypertension (PAH) in 2005.
  • The aim of the suggested study is to examine the acute effect of oral intake of sildenafil on exercise tolerance and functional capacity in Chronic Obstructive Pulmonary Disease (COPD), Idiopathic pulmonary fibrosis (IPF) and post Pneumonectomy patients.
  • The investigators hypothesize that oral ingestion of sildenafil prior the exercise may enhance exercise tolerance and improve function in COPD, IPF and post Pneumonectomy patients.
  • Patients and Methods:

Sixty chronic lung disease patients males and females (aged 30 to 90 years) 20 COPD (GOLD III-IV) [9, 39] , 20 IPF and 20 post Pneumonectomy patients will be recruit to this study.

  • All subjects will carried out two maximal cardiopulmonary exercise tests (CPET) on bicycle ergometer in different days; 60 min after intake of placebo and 60 min after intake of 100 mg sildenafil (Pfizer, Sandwich, UK), in random order.
  • In first meeting prior exercise test at rest standard pulmonary function test, diffusion of CO, TLC and RV will be measured. In addition, Doppler Echocardiography and blood samples for NT-proBNP will be taken prior and post each CPET.
  • After 15-20 minute of passive recovery post exercise test all patients will perform 3 short functional tests including 6 minute walk test to assess functional capacity.
Being tested
Sildenafil
Keywords
Post Pneumonectomy Patients, IPF, COPD
Medical subject headings
Pulmonary Disease, Chronic Obstructive, Idiopathic Pulmonary Fibrosis

What participants receive

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

  • SildenafilDrug

    Acute single dose of 100 mg of sildenafil. Oral intake in tablet form.

Study groups in NCT01382368
Study groupRoleWhat they receive
SildenafilExperimentalNot described
Receives: Drug: Sildenafil

What is being measured

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

  1. VO2 Peak

    Measured: 2-30 days between exercise tests

  2. 6 min walk test

    Distance walked in 6 min test

    Measured: 2-30 days between exercise tests

  3. Functional Tests

    1. 30 seconds chair stand test- number of repetitions in 30 sec
    2. 8-ft-up-and -go (agility and coordination)- number of sec that takes to complete the task.

    Measured: 2-30 days between exercise tests

Secondary outcomes (2)
  1. Pulmonary Arterial Pressure

    Measured: 2-30 days between exercise tests

  2. NT-pro-BNP

    Measured: 2-30 days between exercise tests

Timeline

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

  1. First posted27 Jun 2011 (estimated)
  2. Study startSep 2011
  3. Primary completionNov 2012 (estimated)
  4. Study completionSep 2013 (estimated)

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
Crossover
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
60 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01382368
Sponsor's protocol ID
RMCBH116278 CTIL
Status last verified
Nov 2012
First submitted
2 May 2011
Last updated
15 Nov 2012
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Sildenafil in people with Chronic Obstructive Pulmonary Disease and Idiopathic Pulmonary Fibrosis, run by Rabin Medical Center at 1 site in Israel.

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 3 inclusion and 4 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: status not confirmed, as of the sponsor's last update on 15 Nov 2012. 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 Israel. 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 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?

Results are not available in the source record.

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?

VO2 Peak (time frame: 2-30 days between exercise tests). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 15 Nov 2012.

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