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CompletedNCT04538976CODEX-PUpdated Mar 13, 2025

Copd Exacerbation and Pulmonary Hypertension Trial

A Phase 4 interventional study of Sildenafil in Acute Exacerbation of COPD, sponsored by Chronic Obstructive Pulmonary Disease Trial Network, Denmark. Completed at 5 sites in Denmark. Open to participants aged 40 Years and older. Per ClinicalTrials.gov, last updated 2025-03-13.

Sponsored by Chronic Obstructive Pulmonary Disease Trial Network, Denmark · Phase 4, Interventional, and Treatment

From the registry’s dates

  • Registered 6 months after the study started (first participant enrolled Feb 2020, registered Aug 2020).
Phase
Phase 4
Study type
Interventional
Enrollment
250
Allocation
Randomized
Ages
40 Years and older
Sex
All
01

Study summary

This trial will investigate whether patiens admitted with an acute exacerbation of chronic obstructive lung disease and pulmonary hypertension will benefit from a targeted pharmacological treatment.

Read the detailed description

During admittance due to acute exacerbation of chronic obstructive lung disease will patience have an echocardiography to examine their pulmonary pressure. If patient have a tricuspidal return gradient above 40 mmHg, they will receive treatment with a phosphordiesterase-5-inhibitor, Sildenafil.

02

Conditions studied

  • Acute Exacerbation of COPD

Keywords

  • COPD
  • Chronic Obstructive Lung Disease
  • Increased pulmonary pressure
  • Acute Exacerbation
  • AECOPD
03

In context

Pulmonary Disease, Chronic Obstructive

5,520 studies on the registry are indexed under Pulmonary Disease, Chronic Obstructive; 856 are open to participants now.

This study's enrollment of 250 is above the median of 62 across 3,839 interventional studies indexed under Pulmonary Disease, Chronic Obstructive.

Browse Pulmonary Disease, Chronic Obstructive studies →

Lead sponsor

Chronic Obstructive Pulmonary Disease Trial Network, Denmark is the lead sponsor of 10 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

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

  • verified by specialist and spirometry
  • Admitted with the diagnosis "acute exacerbation of COPD"
  • TR-gradient ≥40 mmHg verified by specialist and echocardiography

Exclusion criteria

Exclusion Criteria:

  • Known pulmonal hypertension
  • Known heart disease which affects the pump function of the heart
  • Men \<40 years
  • Women \<55 years
  • Not-menopauseal women \<55 years (Menopause is defined as no menstruation within 12 months.)
  • Severe mental illness which significantly complicates cooperation
  • Severe language difficulties which significantly complicates cooperation
  • known allergy to Sildenafil
  • Sildenafil consumption ≥50 mg / week due to other indications
Terms in these criteria, in plain language(2)

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.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
250 participants (actual)

Study arms

  • No intervention
    Control

    Patients in the control group will receive standard care.

  • Active comparator
    Sildenafil

    Patients in the Sildenafil group will receive standard care and targeted Sildenafil-treatment.

    Drug: Sildenafil

Interventions

  • Sildenafil in standard dosage

    Also known as: Vizarsin

06

What researchers measure

Primary outcomes

  1. Time alive and out of hospital

    Time frame: 365 days

Secondary outcomes

  1. Time to "prednisolon and/or antibiotica"-needing exacerbation of COPD or death

    Time frame: 365 days

  2. Death within 90 days

    Time frame: 90 days

  3. Death within 1 year

    Time frame: 365 days

  4. Alive and without exacerbation of COPD on day 365

    Time frame: 365 days

  5. Clinical cure

    Time frame: 14 days

  6. Number of readmissions due to exacerbations of COPD

    Time frame: 365 days

  7. Number of days with non-invasive ventilation (NIV) or respirator during admittance

    Time frame: 14 days

  8. Delta Pa(O2)

    Time frame: 4 days

  9. Delta Pa(CO2)

    Time frame: 4 days

  10. Delta(pH)

    Time frame: 4 days

  11. Change in FEV1

    Time frame: 90 days

  12. Change in COPD Assesment Test (CAT)

    Time frame: 29 days

  13. Change in Body Mass Index (BMI)

    Time frame: 90 days

  14. Delta(TR-gradient)

    Time frame: 4 days

07

Study locations

5 sites
  • Bispebjerg University Hospital
    Copenhagen, Denmark
  • Herlev-Gentofte Hospital
    Copenhagen, Denmark
  • Hvidovre Hospital
    Copenhagen, Denmark
  • Nordsjællands Hospital
    Hillerød, Denmark
  • Odense Universitetshospital
    Odense, Denmark
08

References and documents

Individual participant data

Plan to share: No — We have not yet decided to share IPD.

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Feb 2020 to primary completion in Mar 2024, 49 months.

Of 86 non-industry phase 4 interventional studies under Pulmonary Disease, Chronic Obstructive, half reached primary completion within 29 months of starting (the median), counting those still running; a quarter within 14 and three quarters within 50. This study's 49 months is above that.

Counting every sponsor, half of 157 studies reached it within 19 months; a quarter within 12 and three quarters within 40.

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

Registered
Aug 30, 2020
First posted
Sep 4, 2020
StartActual
Feb 1, 2020
Primary completionActual
Mar 15, 2024
CompletionActual
Mar 15, 2024
Last update
Mar 13, 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 Mar 13, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04538976
Lead sponsor
Chronic Obstructive Pulmonary Disease Trial Network, Denmark
Responsible party
Sponsor
First posted
Sep 4, 2020
Start date
Feb 1, 2020
Primary completion
Mar 15, 2024
Completion
Mar 15, 2024
Last update
Mar 13, 2025

Oversight

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

Not currently enrolling

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

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Discussion

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Studies of the drug tested here: Sildenafil

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