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Refractory Chronic CoughPhase 2NCT02412020

Treatment of Refractory Chronic Cough With PA101

A Phase 2 study testing PA101 in people with Refractory Chronic Cough, run by Patara Pharma at 7 sites in 2 countries.

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

This is a double-blind, randomized, placebo-controlled, 2-period crossover, 2-cohort study in adult patients with refractory chronic cough. The purpose of the study is to assess the efficacy and safety of inhaled PA101 delivered via eFlow high efficiency nebulizer for treating refractory chronic cough. Read more about this study

Who is it for?
Ages 18 to 75 years
Conditions the study is for
Refractory Chronic Cough
What is being tested?
PA101
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
52 participants
Where
7 sitesin 2 countries
Study dates
Feb 2015to Feb 2016
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 18 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Diagnosis of Idiopathic Pulmonary Fibrosis (based on presence of definitive or possible usual interstitial pneumonia UIP pattern on high-resolution computed tomography and after excluding lung diseases associated with environmental and occupational exposure, with connective tissue disease and with drugs; transfer capacity for carbon monoxide corrected for hemoglobin [TLCOc] >25% predicted within 12 months of Screening; and forced vital capacity [FRC] >50% predicted within 1 month of Screening) or Chronic Idiopathic Cough (that is unresponsive to targeted treatment for identified underlying triggers including post-nasal drip, asthmatic/non-asthmatic eosinophilic bronchitis, and gastro-esophageal reflux disease)
  • Refractory chronic cough for at least 8 weeks
  • Daytime cough severity score >40 mm on Cough Severity VAS at Screening
  • Daytime average cough count ≥15 per hour at Screening
  • Willing and able to provide written informed consent

Who cannot join

  • Current or recent history of clinically significant medical condition, laboratory abnormality or illness that could put the patient at risk or compromise the quality of the study data as determined by the investigator
  • Upper or lower respiratory tract infection within 4 weeks of Screening
  • History of malignancy treated or untreated within the past 5 years, with the exception of localized basal cell carcinoma or cervix carcinoma in situ
  • Current or recent history (within 12 months) of excessive use or abuse of alcohol
  • Current or recent history (within 12 months) of abusing legal drugs or use of illegal drugs or substances
  • Participation in any other investigational drug study within 4 weeks of Screening
  • Use of prednisone, narcotic antitussives, baclofen, gabapentin, inhaled corticosteroids, benzonatate, dextromethorphan, carbetapentane, H1 antihistamines, leukotriene modifiers, and cromolyn sodium within 2 weeks of Screening
  • Pregnant or breastfeeding females, or if of child-bearing potential unwilling to practice acceptable means of birth control or abstinence during the study

Trial locations and contacts

7 sites in 2 countries.

7 sites in 2 countries

United Kingdom5 sites
  • Hull Clinical Trials Unit

    Cottingham, East Yorkshire

  • Uni Hospital Leicester

    Leicester

  • King's College Hospital

    London

  • Royal Brompton & Harefield Hospital

    London

  • Uni Hospital North Staffordshire

    Stoke-on-Trent

Other trials in United Kingdom

Netherlands2 sites
  • Erasmus Medical Center

    Rotterdam

  • Isala

    Zwolle

Other trials in Netherlands

About this study

Official title: Treatment of Chronic Idiopathic Cough and Chronic Cough in Patients With Idiopathic Pulmonary Fibrosis With PA101

This is a double-blind, randomized, placebo-controlled, 2-period crossover, 2-cohort study in adult patients with refractory chronic cough.

The purpose of the study is to assess the efficacy and safety of inhaled PA101 delivered via eFlow high efficiency nebulizer for treating refractory chronic cough.

Read the detailed description

The study consists of 2 treatment cohorts with refractory chronic cough: Idiopathic Pulmonary Fibrosis (IPF, Cohort 1) and Chronic Idiopathic Cough (CIC, Cohort 2). In each cohort, the study will include two treatment periods of 14 days each separated by a Washout Period of 14 days between Period 1 and Period 2. The two periods will be identical except that in Period 2, patients will crossover to the alternate treatment from that received in Period 1, according to a 1:1 randomization scheme.

During each period, patients will self-administer study drug (i.e., 40 mg PA101 or Placebo PA101 via eFlow) three times daily for 14 consecutive days of each period. Objective cough count will be recorded over 24-hour period using a cough count device (Leicester Cough Monitor) at the Baseline, Day 7 and Day 14 of each treatment period.

In the IPF cohort, patients will be allowed to use antifibrotic therapy (i.e., pirfenidone, nintedanib, and N-acetylcysteine) during the course of the study provided that the dose is stabilized at least 3 months prior to Screening and throughout the study period.

Clinical safety assessments will be performed at the start and end of each treatment period.

Being tested
PA101, Placebo
Medical subject headings
Chronic Cough

What participants receive

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

  • PA101Drug

  • PlaceboDrug

Study groups in NCT02412020
Study groupRoleWhat they receive
PA101ExperimentalPA101, 40 mg administered via inhalation three times daily for 14 days
Receives: Drug: PA101; Drug: Placebo
PlaceboPlacebo comparatorPlacebo PA101, administered via inhalation three times daily for 14 days
Receives: Drug: PA101; Drug: Placebo

What is being measured

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

  1. cough frequency

    objective 24-hour cough monitoring

    Measured: 14 days

Secondary outcomes (2)
  1. cough severity

    VAS scale for cough severity

    Measured: 14 days

  2. cough-related quality of life

    Leicester Cough Questionnaire

    Measured: 14 days

Timeline

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

  1. First posted8 Apr 2015 (estimated)
  2. Study startFeb 2015
  3. Primary completionJan 2016
  4. Study completionFeb 2016

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
Crossover
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
52 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02412020
Sponsor's protocol ID
PA101-CC-02
Status last verified
Feb 2016
First submitted
3 Apr 2015
Last updated
22 Feb 2016
Results posted
No
Data monitoring committee
No

Publications

  • Birring SS, Wijsenbeek MS, Agrawal S, van den Berg JWK, Stone H, Maher TM, Tutuncu A, Morice AH. A novel formulation of inhaled sodium cromoglicate (PA101) in idiopathic pulmonary fibrosis and chronic cough: a randomised, double-blind, proof-of-concept, phase 2 trial. Lancet Respir Med. 2017 Oct;5(10):806-815. doi: 10.1016/S2213-2600(17)30310-7. Epub 2017 Sep 8.

    PubMed 28923239

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing PA101 in people with Refractory Chronic Cough, run by Patara Pharma at 7 sites in 2 countries.

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 5 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 22 Feb 2016. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 7 sites in United Kingdom, Netherlands. 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?

cough frequency (time frame: 14 days). 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 NCT02412020, 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 22 Feb 2016.

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