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Chronic Obstructive Pulmonary DiseasePhase 2NCT01197469

Do Phosphodiesterase 5A Inhibitors Improve Exercise Capacity in Patients With Chronic Obstructive Pulmonary Disease (COPD) and Pulmonary Hypertension?

A Phase 2 study testing Tadalafil in people with Chronic Obstructive Pulmonary Disease and Pulmonary Hypertension, run by University of Dundee at 1 site in United Kingdom.

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 investigators hypothesise that phosphodiesterase 5A inhibitors will improve exercise capacity in those with Chronic Obstructive Pulmonary Disease and secondary pulmonary hypertension. Read more about this study

Who is it for?
Ages 35 to 85 years
What is being tested?
Tadalafil
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
120 participants
Where
1 siteUnited Kingdom
Study dates
Sep 2010to Sep 2012
Phase
Phase 2
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 35 to 85 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • COPD
  • Forced expiratory volume in 1 second (FEV1) <80% (FEV1/FVC <0.70)
  • Right ventricular systolic pressure (RVSP) > 30 mmHg or Pulmonary Acceleration time <120 ms

Who cannot join

  • Pulmonary stenosis or echo left ventricular outflow tract obstruction
  • Left ventricular ejection fraction < 45%
  • Patients taking nitrates, nicorandil or doxazosin.
  • Drug contraindications:
  • Systolic Blood Pressure <90 mmHg
  • recent stroke
  • unstable angina
  • past history of non arteritic anterior ischaemic optic neuropathy

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • University of Dundee

    Dundee, Tayside, DD1 9SY

Other trials in United Kingdom

About this study

Official title: Do Phosphodiesterase 5A Inhibitors Improve Exercise Capacity in Patients With Chronic Obstructive Pulmonary Disease and Pulmonary Hypertension?

The investigators hypothesise that phosphodiesterase 5A inhibitors will improve exercise capacity in those with Chronic Obstructive Pulmonary Disease and secondary pulmonary hypertension.

Being tested
Tadalafil, Placebo
Keywords
Secondary Pulmonary Hypertension
Medical subject headings
Pulmonary Disease, Chronic Obstructive, Hypertension, Pulmonary

What participants receive

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

  • TadalafilDrug

    Tadalafil 10mg once daily for 3 months

  • PlaceboDrug

Study groups in NCT01197469
Study groupRoleWhat they receive
PlaceboPlacebo comparatorPlacebo
Receives: Drug: Placebo
TadalafilActive comparatorNot described
Receives: Drug: Tadalafil

What is being measured

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

  1. 6 minute walking distance

    The investigators will perform a baseline 6 minute walking distance (0 months) and repeat the measure at 2 months and finally at 3 months

    Measured: 3 months

Secondary outcomes (4)
  1. Quality of Life

    The investigators will measure baseline quality of life (0 months) using St George's Respiratory Questionnaire, SF-36v2, Minnesota Heart Failure Questionnaire. These questionnaires will be repeated at 2 and 3 months (final measurement).

    Measured: 3 months

  2. B- Natriuretic Peptide (BNP)

    Will be measured at 0, 2 and 3 months

    Measured: 3 months

  3. Diffusion lung capacity for carbon monoxide (DLCO)

    Will be measured at 0 and 3 months

    Measured: 3 months

  4. Echocardiographic measurements

    Will be measured at 0 and 3 months

    Measured: 3 months

Timeline

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

  1. First posted9 Sep 2010 (estimated)
  2. Study startSep 2010
  3. Primary completionSep 2012
  4. Study completionSep 2012

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 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Single group
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
120 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01197469
Sponsor's protocol ID
2008CV17
Status last verified
Nov 2012
First submitted
1 Sep 2010
Last updated
6 Nov 2012
Results posted
No
Data monitoring committee
No

Publications

  • Goudie AR, Lipworth BJ, Hopkinson PJ, Wei L, Struthers AD. Tadalafil in patients with chronic obstructive pulmonary disease: a randomised, double-blind, parallel-group, placebo-controlled trial. Lancet Respir Med. 2014 Apr;2(4):293-300. doi: 10.1016/S2213-2600(14)70013-X. Epub 2014 Mar 5.

    PubMed 24717626

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Tadalafil in people with Chronic Obstructive Pulmonary Disease and Pulmonary Hypertension, run by University of Dundee at 1 site in United Kingdom.

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 8 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 6 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 United Kingdom. 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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 minute walking distance (time frame: 3 months). 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 NCT01197469, 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 6 Nov 2012.

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