ClinicalTrials.gg
CompletedNCT03583931Updated Jan 27, 2022Results posted

Treatment of Complicated Parapneumonic Effusion With Fibrinolytic Therapy Versus VATs Decortication

An interventional study of VATS Decortication and Fibrinolytic Therapy in Parapneumonic Effusion, Empyema, Pleural and Coagulopathy, sponsored by Denver Health and Hospital Authority. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2022-01-27.

Sponsored by Denver Health and Hospital Authority · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
10
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This study aims to standardize the treatment of pleural space (parapneumonic) infections by comparing the difference in outcomes between 2 methods of treatment: early VATS (Video Assisted Thorascopic Surgery) decortication versus fibrinolytic therapy. During treatment, the patient's coagulopathy status will also be evaluated.

Read the detailed description

The treatment of parapneumonic infections (infection in the pleural space) at the Denver Health Medical Center is not standardized, and timing for advanced interventions such as fibrinolytic therapy or surgical decortication remain unclear. The definitive treatment strategy in these patients may be sub-optimal, and lead to prolonged hospitalization and morbidity. This is concerning as the mortality rate of community acquired pneumonia triples in the presence of a parapneumonic process (5-15%) and can reach over 25% if it becomes bilateral(1). Prompt recognition of pleural space infections is essential for reducing morbidity and mortality. This is attributable to the progression of the disease from a simple fluid collection amenable to pleural space drainage, to necrotizing empyema requiring thoracotomy decortication and open drainage. The keys to management of parapneumonic effusions are early diagnosis, appropriate therapeutic intervention, and recognition of failure of conservative management. The investigators propose that a standardized pathway for identifying and treating parapneumonic effusions will be an important quality improvement. A key gap in the literature remains if patients with parapneumonic infections that cannot be drained with a chest tube should undergo a trial in intrapleural fibrinolytic therapy, or if they should go directly to video assisted thoracic surgery (VATS) for decortication of all infectious material.

02

Conditions studied

  • Parapneumonic Effusion
  • Empyema, Pleural
  • Coagulopathy

Keywords

  • VATS Decortication
  • Surgical Pleural Decortication
  • Fibrinolytic Therapy
  • Pneumonia
  • Thoracostomy
03

In context

Empyema, Pleural

33 studies on the registry are indexed under Empyema, Pleural; 11 are open to participants now.

This study's enrollment of 10 is below the median of 77 across 26 interventional studies indexed under Empyema, Pleural.

Browse Empyema, Pleural studies →

Lead sponsor

Denver Health and Hospital Authority is the lead sponsor of 84 studies on the registry; 4 are open to participants now.

Of its 9 completed or terminated interventional studies of FDA-regulated products, 8 (89%) have results posted.

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

04

Who can participate

Ages eligible
18 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

  • 18 years old and older
  • Admitted with pleural effusion that undergoes thoracentesis by medical/pulmonary service
  • Pleural fluid pH \<7.3
  • SICU placed chest tube
  • Subsequent transfer to SICU

Exclusion criteria

Exclusion Criteria:

  • Existing
  • Malignant cells from initial pleural fluid sample
  • End stage liver disease (Child's B or greater)
  • Coagulopathy
  • Unable to tolerate surgical procedure
  • Frank purulent drainage (needs OR regardless)
  • Recent surgery of abdomen or thorax precluding the use of tPA
  • Baseline neurologic impairment requiring a proxy for consent
Terms in these criteria, in plain language(1)

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.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
10 participants (actual)

Study arms

  • Active comparator
    Operative VATS decortication

    Operative group that will undergo early VATS decortication of complicated parapneumonic effusion/empyema

    Procedure: VATS Decortication

  • Active comparator
    Non-operative Fibrinolytic Therapy

    Non-operative group that will undergo instillation of the drugs DNAse and tPA (tissue plasminogen activator) together i.e. 5mg DNAse and 10mg tPA twice a day for up to six doses, through chest tube as treatment of the patient's complicated parapneumonic effusion/empyema. Fibrinolytic therapy = DNAse + tPA; these medications are not mutually exclusive.

    Drug: Fibrinolytic Therapy

Interventions

  • ProcedureVATS Decortication

    Surgical procedure to unroof all located collections of the pleural space through a chest wall incision

  • DrugFibrinolytic Therapy

    Instillation of DNAse and tPA together through patient's chest tube already in placed to break down complex fluid collection in the pleural space. DNAse and tPA are are administered together only i.e. are not mutually exclusive.

    Also known as: DNAse / tPA combination therapy.

06

What researchers measure

Primary outcomes

  1. Hospital Length of Stay

    How long the patient remains admitted in the hospital during their index hospitalization

    Time frame: From patient's admission to hospital to their discharge, (excluding extended stay due to social work reasons) up to 28 days or discharge, which ever comes first.

Secondary outcomes

  1. ICU Free Days

    Admission days during index hospitalization that are of a lower acuity of care than intensive care

    Time frame: From admission to discharge, or for 28 days, whichever comes first.

  2. Chest Tube Days

    Days with chest tube in place after intervention

    Time frame: From admission to discharge, or for 28 days, whichever comes first.

  3. Cost of Admission and Treatment

    Cost of care for the patient after their intervention

    Time frame: From admission to discharge, or for 28 days, whichever comes first.

  4. Pain Score

    What the patient's level of pain is from 0 to 10; zero being no pain, 10 being the worst pain imaginable. score is categorical 0,1,2,3,4,5,6,7,8,9 or 10.

    Time frame: From admission to discharge, or for 28 days, whichever comes first.

  5. Chest Tube Drainage

    The amount and character of the drainage from the chest tube after intervention

    Time frame: From admission to discharge, or for 28 days, whichever comes first.

  6. Incentive Spirometry

    To what volume the patient can inspire using an incentive spirometer

    Time frame: Everyday for 5 days post study intervention, from admission to discharge, or for 28 days, whichever comes first.

  7. Supplemental Oxygen Days

    The amount of time the patient needs to warn off any supplemental oxygen

    Time frame: From admission to discharge, or for 28 days, whichever comes first.

  8. Fever Days

    The amount of days it takes to resolve fever (temp \>100.4)

    Time frame: From admission to discharge, or for 28 days, whichever comes first.

  9. Days of Antibiotics

    The number of days antibiotics are required after intervention

    Time frame: From admission to discharge, or for 28 days, whichever comes first.

  10. Elevated White Blood Count Days

    The amount of days it takes to resolve a leukocytosis

    Time frame: From admission to discharge, or for 28 days, whichever comes first.

  11. Changed in Coagulopathic Status

    Changes in laboratory TEG values after intervention

    Time frame: From admission to discharge, or for 28 days, whichever comes first.

07

Results

Posted Jan 27, 2022
Limitations and caveats
Potential limitations to this study include a small sample size.

Participant flow

Prospective randomized clinical trial of hospitalized patients identified to have complicated parapneumonic effusions with radiographic imaging. Denver Health and Hospital Authority.

Participant flow — Overall Study
MilestoneOperative VATS DecorticationNon-operative Fibrinolytic Therapy
Started55
Completed55
Not completed00

Outcome measures

PrimaryHospital Length of Stay

How long the patient remains admitted in the hospital during their index hospitalization

Time frame:
From patient's admission to hospital to their discharge, (excluding extended stay due to social work reasons) up to 28 days or discharge, which ever comes first.
Reported as:
Mean · days
Hospital Length of Stay
daysOperative VATS DecorticationNon-operative Fibrinolytic Therapy
Hospital Length of Stay12.4 ± 16.78.4 ± 4.1
SecondaryICU Free Days

Admission days during index hospitalization that are of a lower acuity of care than intensive care

Time frame:
From admission to discharge, or for 28 days, whichever comes first.
Reported as:
Mean · Days
ICU Free Days
DaysOperative VATS DecorticationNon-operative Fibrinolytic Therapy
ICU Free Days22.4 ± 820 ± 6.2
Statistical analysis
  • Operative VATS Decortication vs Non-operative Fibrinolytic Therapy · ANOVA · p = 0.61
SecondaryChest Tube Days

Days with chest tube in place after intervention

Time frame:
From admission to discharge, or for 28 days, whichever comes first.
Reported as:
Mean · Days
Chest Tube Days
DaysOperative VATS DecorticationNon-operative Fibrinolytic Therapy
Chest Tube Days7.4 ± 8.28.2 ± 2.4
Statistical analysis
  • Operative VATS Decortication vs Non-operative Fibrinolytic Therapy · ANOVA · p = 0.84
SecondaryCost of Admission and Treatment

Cost of care for the patient after their intervention

Time frame:
From admission to discharge, or for 28 days, whichever comes first.

No measurements were reported for this outcome.

SecondaryPain Score

What the patient's level of pain is from 0 to 10; zero being no pain, 10 being the worst pain imaginable. score is categorical 0,1,2,3,4,5,6,7,8,9 or 10.

Time frame:
From admission to discharge, or for 28 days, whichever comes first.
Reported as:
Mean · score on a scale
Pain Score
score on a scaleOperative VATS DecorticationNon-operative Fibrinolytic Therapy
Pain Score3.6 ± 14.6 ± 2
SecondaryChest Tube Drainage

The amount and character of the drainage from the chest tube after intervention

Time frame:
From admission to discharge, or for 28 days, whichever comes first.
Reported as:
Mean · mL
Chest Tube Drainage
mLOperative VATS DecorticationNon-operative Fibrinolytic Therapy
Chest Tube Drainage60.1 ± 12.3713.2 ± 180.3
SecondaryIncentive Spirometry

To what volume the patient can inspire using an incentive spirometer

Time frame:
Everyday for 5 days post study intervention, from admission to discharge, or for 28 days, whichever comes first.

No measurements were reported for this outcome.

SecondarySupplemental Oxygen Days

The amount of time the patient needs to warn off any supplemental oxygen

Time frame:
From admission to discharge, or for 28 days, whichever comes first.
Reported as:
Mean · Days
Supplemental Oxygen Days
DaysOperative VATS DecorticationNon-operative Fibrinolytic Therapy
Supplemental Oxygen Days17.8 ± 24.59.6 ± 2.3
Statistical analysis
  • Operative VATS Decortication vs Non-operative Fibrinolytic Therapy · ANOVA · p = 0.48
SecondaryFever Days

The amount of days it takes to resolve fever (temp \>100.4)

Time frame:
From admission to discharge, or for 28 days, whichever comes first.
Reported as:
Mean · Days
Fever Days
DaysOperative VATS DecorticationNon-operative Fibrinolytic Therapy
Fever Days4.8 ± 5.30.8 ± 1.1
Statistical analysis
  • Operative VATS Decortication vs Non-operative Fibrinolytic Therapy · ANOVA · p = 0.25
SecondaryDays of Antibiotics

The number of days antibiotics are required after intervention

Time frame:
From admission to discharge, or for 28 days, whichever comes first.
Reported as:
Mean · Days
Days of Antibiotics
DaysOperative VATS DecorticationNon-operative Fibrinolytic Therapy
Days of Antibiotics17 ± 9.325.6 ± 24.6
Statistical analysis
  • Operative VATS Decortication vs Non-operative Fibrinolytic Therapy · ANOVA · p = 0.45
SecondaryElevated White Blood Count Days

The amount of days it takes to resolve a leukocytosis

Time frame:
From admission to discharge, or for 28 days, whichever comes first.
Reported as:
Mean · Days
Elevated White Blood Count Days
DaysOperative VATS DecorticationNon-operative Fibrinolytic Therapy
Elevated White Blood Count Days5.6 ± 46 ± 3.6
Statistical analysis
  • Operative VATS Decortication vs Non-operative Fibrinolytic Therapy · ANOVA · p = 0.87
SecondaryChanged in Coagulopathic Status

Changes in laboratory TEG values after intervention

Time frame:
From admission to discharge, or for 28 days, whichever comes first.

No measurements were reported for this outcome.

Adverse events

Collected over Through study completion, average of 1 year, which was the length of time participants were followed.. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Operative VATS Decortication0/5 (0%)0/5 (0%)2/5 (40%)
Non-operative Fibrinolytic Therapy1/5 (20%)2/5 (40%)1/5 (20%)
Most frequent serious events
Most frequent serious events
EventOperative VATS DecorticationNon-operative Fibrinolytic Therapy
altered mental stateGeneral disorders0/52/5
PneumothoraxRespiratory, thoracic and mediastinal disorders0/51/5
unplanned readmissionRespiratory, thoracic and mediastinal disorders0/51/5
Most frequent other events
Most frequent other events
EventOperative VATS DecorticationNon-operative Fibrinolytic Therapy
additional CTRespiratory, thoracic and mediastinal disorders2/51/5

Baseline characteristics

10 subjects were enrolled. Five were randomized to the FT group and 5 to early VATS decortication.

Age, Continuous
Age, Continuous(years)Operative VATS DecorticationNon-operative Fibrinolytic TherapyTotal
Mean44 ± 16.145.6 ± 11.144.8 ± 13.6
Sex: Female, Male
Sex: Female, Male(Participants)Operative VATS DecorticationNon-operative Fibrinolytic TherapyTotal
Female123
Male437
Race and Ethnicity Not Collected
Race and Ethnicity Not Collected(Participants)Operative VATS DecorticationNon-operative Fibrinolytic TherapyTotal
Count of participants——0
08

Study locations

1 site
  • Denver Health
    Denver, Colorado 80204, United States
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Jul 2018 to primary completion in Feb 2020, 18 months.

Results were first posted in Jan 2022, 1 year 11 months after primary completion.

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

Registered
May 11, 2018
First posted
Jul 12, 2018
StartActual
Jul 26, 2018
Primary completionActual
Feb 2, 2020
CompletionActual
Feb 2, 2020
Results first posted
Jan 27, 2022
Last update
Jan 27, 2022
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 Jan 27, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03583931
Lead sponsor
Denver Health and Hospital Authority
Responsible party
Sponsor
First posted
Jul 12, 2018
Start date
Jul 26, 2018
Primary completion
Feb 2, 2020
Completion
Feb 2, 2020
Results posted
Jan 27, 2022
Last update
Jan 27, 2022

Study contacts

Fredric Pieracci, MD, MPH
principal investigator · Denver Health and Hospital

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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