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COPDPhase 1/2NCT02097992

Effect of Roflumilast on Airway Blood Flow as an Expression of Airway Inflammation in COPD

A Phase 1/2 study testing Roflumilast in people with COPD, run by University of Miami at 1 site in United States.

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 objectives of the proposed study are to determine 1) the effect of a single dose of Roflumilast on airway blood flow (Qaw) (study period 1) and 2) the effect of long-term Roflumilast treatment on airway blood flow reactivity delta Qaw)(study period 2) in patients with stable COPD who use ICS regularly. Read more about this study

Who is it for?
Ages 45 years and older
Conditions the study is for
COPD
What is being tested?
Roflumilast
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
11 participants
Where
1 siteUnited States
Study dates
Feb 2013to Jul 2015
Phase
Phase 1/2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 45 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Twenty-four patients with physician-diagnosed COPD (female and male, current smokers or ex-smokers) over the age of 45 years will be recruited for this study.
  • The patients will have to have a smoking history of at least 10 pack-years, and they must have been using an ICS regularly for at least 4 weeks at the time of screening.
  • Confirmation of the diagnosis of COPD will require the presence of persistent exertional dyspnea and a post-bronchodilator FEV1 of less than 80% of predicted and FEV1/FVC ratio less than 0.7 (GOLD stage ≥2). At entry into the study, the patients will have to be clinically stable; they will be allowed to remain on their regular COPD treatment regimen and use a LABA and/or LAMA until 24 hours before, and a SABA and/or short-acting muscarinic antagonist (SAMA) until 6 hours before coming to the laboratory. If using roflumilast, the subjects will have to discontinue it 4 weeks before entering into the study.-

Who cannot join

  • Women of childbearing potential who do not use accepted birth control measures
  • Pregnant and breast-feeding women.
  • Use of cardiovascular medications that cannot be held on the study days
  • Use of oral airway medications or anti-inflammatory agents
  • Use of supplemental oxygen that cannot be discontinued during the laboratory visit
  • Subjects with known SABA or roflumilast intolerance
  • An acute COPD exacerbation within four weeks prior to the study

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Miami Divison of Pulmonary and Critical Care Medicine

    Miami, Florida, 33136

Other trials in United States

About this study

The objectives of the proposed study are to determine 1) the effect of a single dose of Roflumilast on airway blood flow (Qaw) (study period 1) and 2) the effect of long-term Roflumilast treatment on airway blood flow reactivity delta Qaw)(study period 2) in patients with stable COPD who use ICS regularly.

Read the detailed description

Participants will be enrolled in the study for three months There will be 6 study days (visits). The patients will be asked to come to the research laboratory in the morning of the study day. They will be instructed to abstain from ingesting alcoholic beverages or using PDE5 inhibitors the night before the study, and from consuming coffee or caffeinated drinks in the morning of the study day because of their potential acute cardiovascular actions. The patients will also be asked not to have a fatty breakfast on the study day to avoid potential effects of fat on the absorption of roflumilast.

The visits will be separated by at least 48 hours. Study period 1: The patients will be randomized into two arms: roflumilast or placebo. Qaw will be measured before and at 15, 30, 60, 120 and 240min in each arm (parallel design) Study period 2: Patients will be randomized to either roflumilast for 4 weeks or placebo for 4 weeks and airway blood flow reactivity will be measured at the end of the treatment period. The patients will then be taken off medication or placebo for 4 weeks and reassigned to the alternate treatment (roflumilast or placebo) for 4 weeks and airway blood flow reactivity will be measured after the this treatment period (cross-over design).

The treatments will be administered in a double-blind randomized design, using active roflumilast and identically appearing roflumilast placebo provided by Forest.

Visit 1

On this visit, a medical history will be obtained from the patients and they will undergo a physical examination and complete pulmonary function testing. If they meet entry criteria, Qaw will be measured before and 15 min after the inhalation of 180 µg albuterol using a spacer (ΔQaw). We have previously shown that vasodilation peaks between 5 and 30 min after inhaling this dose of albuterol in healthy non-smokers; in patients with COPD, who exhibit a vasodilatory response to inhaled albuterol, the peak effects also occur at the same time as in healthy subjects. Since all patients enrolled in the present study will be regular ICS users, we expect that all of them will have a vasodilator response to albuterol as previously shown.

Visit 2

On this day, Qaw will be measured before and at 15, 30, 60,120 and 240 min after the oral administration of either 500µg roflumilast or placebo, blinded to patient and investigator (acute roflumilast effects).

Visit 3

The patients will be given either 500µg roflumilast or placebo (alternate to treatment at visit 2) blinded to patient and investigator. One hour later, Qaw will be measured before and 15 min after the inhalation of 180µg albuterol using a spacer (ΔQaw). Pharmacokinetic studies have shown that the geometric mean plasma concentration of roflumilast after a 500µg dose peaks at one hour after oral drug administration.

The patients will then be randomized in a double blind fashion to either roflumilast 500 µg or placebo every morning before breakfast. They will be asked to return for a follow up visit 4 weeks later (visit 4).

Visit 4

The patients will not take their morning dose (roflumilast or placebo) on this day. Qaw will be measured before and 15 min after the inhalation of 180 µg albuterol using a spacer (ΔQaw). The treatment will be discontinued and the patients will be asked to return for visit 5 after a 4-week washout period.

Visit 5

The protocol of visit 4 will be repeated. The patients will then be started on the alternate treatment for 4 weeks: Those on roflumilast between visits 3 and 4 will now be placed on placebo, and those on placebo between visits 3 and 4 will be placed on roflumilast. The patients will be asked to return for a final visit (visit 6) 4 weeks later.

Visit 6

The protocol of visit 4 will be repeated. The patients will then undergo an exit exam and be discharged from the study

Conditions
COPD
Being tested
Roflumilast Placebo, Roflumilast
Keywords
COPD, airway blood flow
Medical subject headings
Pulmonary Disease, Chronic Obstructive

What participants receive

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

  • Roflumilast PlaceboDrug

    Placebo pill

  • RoflumilastDrug

    Also called Daliresp

    500 Ug ORAL TABLET

Study groups in NCT02097992
Study groupRoleWhat they receive
SD placebo and MD roflumilast then MD placeboExperimentalParticipants will receive placebo (single dose) followed by a 4 week treatment with 500ug roflumilast daily, followed by a 4 week washout period, followed by a 4 week treatment with placebo daily.
Receives: Drug: Roflumilast Placebo; Drug: Roflumilast
SD placebo and MD placebo then MD roflumilastExperimentalParticipants will receive placebo (single dose) followed by a 4 week treatment with placebo daily, followed by a 4 week washout period, followed by a 4 week treatment with 500ug roflumilast daily.
Receives: Drug: Roflumilast Placebo; Drug: Roflumilast
SD roflumilast and MD placebo then MD roflumilast.ExperimentalParticipants will receive 500ug roflumilast (single dose) followed by a 4 week treatment with placebo daily, followed by a 4 week washout period, followed by a 4 week treatment with 500ug roflumilast daily.
Receives: Drug: Roflumilast Placebo; Drug: Roflumilast
SD roflumilast and MD roflumilast then MD placeboExperimentalParticipants will receive 500ug roflumilast (single dose) followed by a 4 week treatment with 500ug roflumilast daily, followed by a 4 week washout period, followed by a 4 week treatment with placebo daily
Receives: Drug: Roflumilast Placebo; Drug: Roflumilast

What is being measured

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

  1. Airway Blood Flow Reactivity (Delta Qaw)

    percentage of change on airway blood flow induced by albuterol.

    Measured: Immediate or 4 weeks

Timeline

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

  1. First posted27 Mar 2014 (estimated)
  2. Study startFeb 2013
  3. Primary completionJul 2015
  4. Study completionJul 2015

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 1/2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
11 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02097992
Sponsor's protocol ID
20120591
Other IDs
DAL-IT-06
Status last verified
Oct 2017
First submitted
13 Feb 2014
Last updated
24 Nov 2017
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing Roflumilast in people with COPD, run by University of Miami at 1 site in United States.

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 7 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 Nov 2017. 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 States. 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 combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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?

Yes. Results are posted in the registry (first posted 18 Aug 2017). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Airway Blood Flow Reactivity (Delta Qaw) (time frame: Immediate or 4 weeks). 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 24 Nov 2017.

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