ClinicalTrials.gg
TerminatedNCT04636801PILASTERUpdated Dec 17, 2025

A 52-week, Placebo-controlled Study to Evaluate the Efficacy and Safety of 2 Doses of CHF6001 DPI (Tanimilast), as add-on to Maintenance Triple Therapy in Subjects With COPD and Chronic Bronchitis (PILASTER)

A Phase 3 interventional study of Experimental: CHF6001 1600µg and Experimental: CHF6001 3200µg in Chronic Obstructive Pulmonary Disease, sponsored by Chiesi Farmaceutici S.p.A.. Terminated at 447 sites in 30 countries. Open to participants aged 40 Years and older. Per ClinicalTrials.gov, last updated 2025-12-17.

Primary conditionBronchitis, ChronicRegistry: Pulmonary Disease, Chronic ObstructiveReclassifiedWhy we changed it
Registry
Pulmonary Disease, Chronic Obstructive — the first condition term the registry derived for this study.
ClinicalTrials.gg
Bronchitis, Chronic
Why
  1. The study's title name Bronchitis, Chronic, a narrower term within Pulmonary Disease, Chronic Obstructive.
Confidence
High: the new condition is named in the study's own title. Of 46 hand-checked studies reclassified this way, 72% were exactly right and 89% in the right disease family; the registry's first term was right for 4% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by Chiesi Farmaceutici S.p.A. · Phase 3, Interventional, and Treatment

Why this study was terminated
Strategic decision by Sponsor; not due to safety reasons

From the registry’s dates

  • Primary completion was Oct 2025, 1 year ago, and no results have been posted to the registry.
Phase
Phase 3
Study type
Interventional
Enrollment
4,710
Allocation
Randomized
Ages
40 Years and older
Sex
All
01

Study summary

The purpose of the study is to evaluate the efficacy and safety of two doses of CHF6001 (Tanimilast), as add-on to maintenance triple therapy in the target patient population.

02

Conditions studied

  • Chronic Obstructive Pulmonary Disease

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Keywords

  • COPD
  • Chronic Bronchitis
  • PDE4 inhibitor
  • anti-inflammatory respiratory drug
  • Tanimilast
03

In context

Bronchitis, Chronic Reclassified

209 studies on the registry are indexed under Bronchitis, Chronic; 14 are open to participants now.

This study's enrollment of 4,710 is above the median of 101 across 154 interventional studies indexed under Bronchitis, Chronic.

Browse Bronchitis, Chronic studies →

Lead sponsor

Chiesi Farmaceutici S.p.A. is the lead sponsor of 185 studies on the registry; 22 are open to participants now.

Of its 18 completed or terminated interventional studies of FDA-regulated products, 11 (61%) have results posted.

Compared within Bronchitis, Chronic, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Pulmonary Disease, Chronic Obstructive. The counts are of registry records indexed under each term, refreshed daily. How we classify →

04

Who can participate

Ages eligible
40 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Adults aged ≥ 40 years with and chronic bronchitis
  • Current or ex-smokers (history ≥ 10 pack years).
  • Post-bronchodilator \<60% of the subject predicted normal value and FEV1/FVC ratio \< 0.7.
  • At least, one moderate or severe COPD exacerbation in previous year.
  • CAT score ≥ 10
  • Subjects on regular maintenance triple therapy for at least 12 months prior to screening and receiving regular maintenance triple therapy for at least 3 months prior to screening visit

Exclusion criteria

Exclusion Criteria:

  • Subjects with current asthma.
  • Subjects with moderate or severe exacerbation 4 weeks prior to study entry and randomization.
  • Subjects with known α-1 antitrypsin deficiency as the underlying cause of COPD.
  • Subjects with COPD emphysema or mixed phenotypes.
  • Subjects with known respiratory disorders other than COPD.
  • Subjects with active cancer or a history of lung cancer with full recovery less than 1 year after completing cancer therapy.
  • Subjects under Roflumilast treatment within 6 months before study entry.
  • Subjects with a diagnosis of depression, generalised anxiety disorder, suicidal ideation.
  • Subjects with cardiovascular.
  • Subjects with a significant neurological disease.
  • Subjects with clinically significant laboratory abnormalities.
  • Subjects with moderate or severe hepatic impairment
Terms in these criteria, in plain language(3)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

COPD

Chronic obstructive pulmonary disease: long-term lung disease that makes it hard to breathe out, including emphysema and chronic bronchitis.

FEV1

From a breathing test (spirometry): how much air you can blow out in the first second. Often given as a percentage of what is expected for your age, height and sex.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
4,710 participants (actual)

Study arms

  • Experimental
    CHF6001 1600µg

    Drug: Experimental: CHF6001 1600µg

  • Experimental
    CHF6001 3200µg

    Drug: Experimental: CHF6001 3200µg

  • Placebo comparator
    CHF6001 Placebo

    Drug: Placebo

Interventions

06

What researchers measure

Primary outcomes

  1. The number of moderate and severe COPD exacerbations occurring during the planned 52-week treatment period.

    Moderate or severe exacerbation is defined by symptomatic worsening of COPD: * Moderate: requiring use of systemic corticosteroid (oral/IV/IM corticosteroids), and/or use of antibiotics * Severe: requiring hospitalisation or resulting in death

    Time frame: Up to 52 weeks

Secondary outcomes

  1. The time to first moderate or severe exacerbation.

    Time frame: Up to 52 weeks

  2. The annual rate of severe exacerbation.

    Time frame: Up to 52 weeks

  3. The time to first severe exacerbation.

    Time frame: Up to 52 weeks

  4. The number of on-treatment severe exacerbations.

    Time frame: Up to 52 weeks

  5. Change from baseline (pre-dose visit 2) in pre-dose FEV1 at week 52.

    Time frame: At Week 52

  6. Change from baseline in SGRQ total and domain scores at week 52.

    Time frame: At week 52

  7. SGRQ response (change from baseline SGRQ total score ≤ -4) at week 52.

    Time frame: At week 52

  8. Change from baseline to last inter-visit period (week 40-52) in E-RS Total and subscale scores

    Time frame: Up to 52 weeks

  9. E-RS response (change from baseline E-RS Total score ≤ -2) at week 52.

    Time frame: At week 52

  10. Change from baseline to last inter-visit period (week 40-52) in the percentage of days without intake of rescue medication and in the average rescue medication use (number of puffs)

    Time frame: Up to 52 weeks

  11. Time to study medication discontinuation for any reason.

    Time frame: Up to 52 weeks

  12. Time to moderate or severe exacerbation or study medication discontinuation due to any adverse event, lack of efficacy or death (composite endpoint) and time to study medication discontinuation component.

    Time frame: Up to 52 weeks

07

Study locations

447 sites
  • Chiesi Clinical Trial - Site 840402
    Sheffield, Alabama 35660-4020, United States
  • Chiesi Clinical Trial - Site 840480
    Northridge, California 91324-6200, United States
  • Chiesi Clinical Trial - Site 840487
    Cutler Bay, Florida 33189-1230, United States
  • Chiesi Clinical Trial - Site 840404
    Hollywood, Florida 33021, United States
  • Chiesi Clinical Trial - Site 840407
    Miami, Florida 33144-2100, United States
  • Chiesi Clinical Trial - Site 840444
    Miami, Florida 33144, United States
  • Chiesi Clinical Trial - Site 840437
    Miami, Florida 33165-2075, United States
  • Chiesi Clinical Trial - Site 840403
    Miami, Florida 33175-3598, United States
  • Chiesi Clinical Trial - Site 840463
    Orlando, Florida 32822-5806, United States
  • Chiesi Clinical Trial - Site 840401
    Peachtree Corners, Georgia 30071-2656, United States
  • Chiesi Clinical Trial - Site 840478
    New Windsor, New York 12553-7754, United States
  • Chiesi Clinical Trial - Site 840483
    Philadelphia, Pennsylvania 19140, United States
  • Chiesi Clinical Trial - Site 840474
    Kerrville, Texas 78028-9640, United States
  • Chiesi Clinical Trial - Site 840409
    Plano, Texas 75025, United States
  • Chiesi Clinical Trial - Site 840481
    San Antonio, Texas 78229, United States
  • Chiesi Clinical Trial - Site 8455
    Durrës, Albania
  • Chiesi Clinical Trial - Site 8459
    Durrës, Albania
  • Chiesi Clinical Trial - Site 8457
    Elbasan, Albania
  • Chiesi Clinical Trial - Site 8460
    Korçë, Albania
  • Chiesi Clinical Trial - Site 8451
    Tirana, Albania
  • Chiesi Clinical Trial - Site 8452
    Tirana, Albania
  • Chiesi Clinical Trial - Site 8453
    Tirana, Albania
  • Chiesi Clinical Trial - Site 8454
    Tirana, Albania
  • Chiesi Clinical Trial - Site 8456
    Tirana, Albania
  • Chiesi Clinical Trial - Site 8458
    Tirana, Albania
  • Chiesi Clinical Trial - Site 32415
    Buenos Aires, 7540, Argentina
  • Chiesi Clinical Trial - Site 32407
    Buenos Aires, Argentina
  • Chiesi Clinical Trial - Site 32410
    Buenos Aires, Argentina
  • Chiesi Clinical Trial - Site 32454
    Buenos Aires, Argentina
  • Chiesi Clinical Trial - Site 32457
    Caba, Argentina
  • Chiesi Clinical Trial - Site 32459
    CABA, Argentina
  • Chiesi Clinical Trial - Site 32414
    Ciudad Autonoma de Buenos Aire, Argentina
  • Chiesi Clinical Trial - Site 32403
    Córdoba, Argentina
  • Chiesi Clinical Trial - Site 32409
    Córdoba, Argentina
  • Chiesi Clinical Trial - Site 32401
    Florida, Argentina
  • Centro de Medicina Respiratoria - Concepcion del Uruguay - site 32463
    Forestal Entre Ríos, 89862-000, Argentina
  • Chiesi Clinical Trial - Site 32455
    La Plata, Argentina
  • Chiesi Clinical Trial - Site 32458
    Mar del Plata, Argentina
  • Chiesi Clinical Trial - Site 32462
    Mar del Plata, Argentina
  • Chiesi Clinical Trial - Site 32405
    Mendoza, Argentina
  • Chiesi Clinical Trial - Site 32411
    Mendoza, Argentina
  • Chiesi Clinical Trial - Site 32413
    Mendoza, Argentina
  • Chiesi Clinical Trial - Site 32402
    Monte Grande, Argentina
  • Chiesi Clinical Trial - Site 32406
    Quilmes, Argentina
  • Chiesi Clinical Trial - Site 32453
    Rosario, Argentina
  • Chiesi Clinical Trial - Site 32460
    San Fernando, Argentina
  • Chiesi Clinical Trial - Site 32408
    San Juan Bautista, Argentina
  • Chiesi Clinical Trial - Site 32412
    San Miguel de Tucumán, Argentina
  • Chiesi Clinical Trial - Site 32451
    San Miguel de Tucumán, Argentina
  • Chiesi Clinical Trial - Site 32452
    San Miguel de Tucumán, Argentina
  • Chiesi Clinical Trial - Site 32461
    San Miguel de Tucumán, Argentina
  • Chiesi Clinical Trial - Site 32464
    San Miguel de Tucumán, Argentina
  • Chiesi Clinical Trial - Site 32456
    Santa Fe, Argentina
  • Chiesi Clinical Trial - Site 36453
    Adelaide, Australia
  • Chiesi Clinical Trial - Site 36454
    Box Hill, Australia
  • Chiesi Clinical Trial - Site 36455
    Campbelltown, Australia
  • Chiesi Clinical Trial - Site 36456
    Clayton, Australia
  • Chiesi Clinical Trial - Site 36451
    South Brisbane, Australia
  • Chiesi Clinical Trial - Site 36452
    Westmead, Australia
  • Chiesi Clinical Trial - Site 40402
    Feldbach, Austria
  • Chiesi Clinical Trial - Site 40404
    Grieskirchen, Austria
  • Chiesi Clinical Trial - Site 40406
    Linz, 4020, Austria
  • Chiesi Clinical Trial - Site 40401
    Linz, Austria
  • Chiesi Clinical Trial - Site 40403
    Linz, Austria
  • Chiesi Clinical Trial - Site 40405
    Wels, 4600, Austria
  • Chiesi Clinical Trial - Site 070401
    Banja Luka, Bosnia and Herzegovina
  • Chiesi Clinical Trial - Site 070407
    Doboj, Bosnia and Herzegovina
  • Chiesi Clinical Trial - Site 070460
    Mostar, Bosnia and Herzegovina
  • Chiesi Clinical Trial - Site 070404
    Pale, Bosnia and Herzegovina
  • OJ Dom zdravlja Novo Sarajevo "Omer Maslić" - Site 70408
    Sarajevo, 71000, Bosnia and Herzegovina
  • Chiesi Clinical Trial - Site 070405
    Sarajevo, Bosnia and Herzegovina
  • Chiesi Clinical Trial - Site 070406
    Sarajevo, Bosnia and Herzegovina
  • Chiesi Clinical Trial - Site 070403
    Tešanj, Bosnia and Herzegovina
  • Chiesi Clinical Trial - Site 070402
    Tuzla, Bosnia and Herzegovina
  • Chiesi Clinical Trial - Site 070463
    Tuzla, Bosnia and Herzegovina
  • Chiesi Clinical Trial - Site 100435
    Blagoevgrad, Bulgaria
  • Chiesi Clinical Trial - Site 100434
    Dimitrovgrad, Bulgaria
  • Chiesi Clinical Trial - Site 100453
    Gabrovo, Bulgaria
  • Chiesi Clinical Trial - Site 100423
    Haskovo, Bulgaria
  • Chiesi Clinical Trial - Site 100433
    Kozloduy, Bulgaria
  • Chiesi Clinical Trial - Site 100455
    Lovech, Bulgaria
  • Chiesi Clinical Trial - Site 100415
    Montana, Bulgaria
  • Chiesi Clinical Trial - Site 100432
    Pernik, Bulgaria
  • Chiesi Clinical Trial - Site 100422
    Pleven, Bulgaria
  • Chiesi Clinical Trial - Site 100452
    Plovdiv, Bulgaria
  • Chiesi Clinical Trial - Site 100456
    Plovdiv, Bulgaria
  • Chiesi Clinical Trial - Site 100437
    Razgrad, Bulgaria
  • Chiesi Clinical Trial - Site 100412
    Rousse, Bulgaria
  • Chiesi Clinical Trial - Site 100416
    Rousse, Bulgaria
  • Chiesi Clinical Trial - Site 100436
    Sevlievo, Bulgaria
  • Chiesi Clinical Trial - Site 100460
    Sliven, Bulgaria
  • Chiesi Clinical Trial - Site 100409
    Sofia, Bulgaria
  • Chiesi Clinical Trial - Site 100414
    Sofia, Bulgaria
  • Chiesi Clinical Trial - Site 100417
    Sofia, Bulgaria
  • Chiesi Clinical Trial - Site 100418
    Sofia, Bulgaria
  • Chiesi Clinical Trial - Site 100420
    Sofia, Bulgaria
  • Chiesi Clinical Trial - Site 100430
    Sofia, Bulgaria
  • Chiesi Clinical Trial - Site 100431
    Sofia, Bulgaria
  • Chiesi Clinical Trial - Site 100438
    Sofia, Bulgaria
  • Chiesi Clinical Trial - Site 100424
    Stara Zagora, Bulgaria

Showing the first 100 of 447 sites across 30 countries. Choose a country and city above to see the rest.

08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Jul 2021 to primary completion in Oct 2025, 51 months.

How these figures are worked out, and which studies are left out of them.

Registered
Nov 16, 2020
First posted
Nov 19, 2020
StartActual
Jul 14, 2021
Primary completionActual
Oct 31, 2025
CompletionActual
Oct 31, 2025
Last update
Dec 17, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Dec 17, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04636801
Responsible party
Sponsor
First posted
Nov 19, 2020
Start date
Jul 14, 2021
Primary completion
Oct 31, 2025
Completion
Oct 31, 2025
Last update
Dec 17, 2025

Study contacts

Klaus F. Rabe, Prof.
principal investigator · LungenClinic Grosshansdorf GmbH Wöhrendamm 80 22927 Großhansdorf GERMANY

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is terminated, as verified in Dec 2025. You cannot join it, but the record below documents what was studied.

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Studies of the drug tested here: Tanimilast

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