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Once Daily Intrapleural Enzyme Therapy in Complicated Parapneumonic Effusion or Empyema

Once Daily Intrapleural Enzyme Therapy in Complicated Parapneumonic Effusion or Empyema (ONLY ONCE)

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07095361
Acronym
ONLY ONCE
Enrollment
270
Registered
2025-07-31
Start date
2025-09-11
Completion date
2028-09-30
Last updated
2026-05-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Complicated Pleural Effusion/ Empyema, Empyema, Empyema, Pleural, Pleural Effusion, Pleural Effusion Associated With Pulmonary Infection, Pleural Infection Bacterial, Pleural Infections, Pleural Infections and Inflammations

Keywords

Lytics, Intrapleural enzyme therapy, Once daily, lytic therapy

Brief summary

The goal of this clinical trial is to find out if giving certain medications once a day works just as well as giving them twice a day to treat infections around the lungs (called pleural infections). These medications-tissue plasminogen activator (tPA) and deoxyribonuclease (DNase)-are placed through a chest tube into the space between the lung and the chest wall to help clear out the infection. The investigators are trying to learn: * Does using the medicine once a day work just as well as using it twice a day? * Are there any differences in outcomes between patients who get the medicine once a day versus twice a day? * Does more or less fluid remain in the chest (seen on a chest x-ray) depending on how often the medicine is given? Participants will: * Have an infection around their lung and will already be getting normal hospital care, including a chest tube to drain the infected fluid around their lung. * Be asked to give permission to join the study. * Be randomly chosen (like flipping a coin) to get the medications either once a day or twice a day through the chest tube.

Interventions

DRUGFibrinolytic once daily

tissue plasminogen activator (tPA) 10mg will be administered once a day as part of intrapleural enzyme therapy (IET) for 3 consecutive days.

DRUGFibrinolytic twice daily

tissue plasminogen activator (tPA) 10mg will be administered twice a day as intrapleural enzyme therapy for 3 consecutive days.

DRUGDNA degradation once daily

Deoxyribonuclease (DNase) 5mg will be administered once a day as intrapleural enzyme therapy (IET) for 3 consecutive days.

DRUGDNA degradation twice daily

Deoxyribonuclease (DNase) 5mg will be administered twice a day as intrapleural enzyme therapy for 3 consecutive days.

Sponsors

University of North Carolina, Chapel Hill
Lead SponsorOTHER
Northwestern Memorial Hospital
CollaboratorOTHER
Henry Ford Health System
CollaboratorOTHER
Yale University
CollaboratorOTHER
Rush University Medical Center
CollaboratorOTHER
Dartmouth-Hitchcock Medical Center
CollaboratorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Written informed consent obtained from patient or patient's legally authorized representative (LAR) to participate in the study and HIPAA authorization for release of personal health information. * Subject is willing and able to comply with study procedures based on the judgement of the investigator or protocol designee. * Age ≥ 18 years at the time of consent. * Patient is admitted to the hospital and with a pleural effusion that is drained with a small-bore chest tube or one that allows for administration of IET * Pleural fluid that is one of the following: (i) Macroscopically purulent or pleural fluid gram stain or culture positive for bacteria (ii) potential of hydrogen (pH) \< 7.2 (iii) Pleural fluid glucose \< 60mg/dL (iv) Pleural fluid Lactate Dehydrogenase (LDH) \> 1,000 IU/L * Patient is deemed a candidate to receive intrapleural enzyme therapy as defined by having a residual collection or persistent sepsis 24 hours after initial chest tube placement

Exclusion criteria

* Known pregnancy or lactating females * Prisoners * Age \<18 years at time of consent * Previous treatment with intra-pleural fibrinolytic agents, DNase, or both during the same hospital admission * Known sensitivity or allergic reaction to DNAse or tPA * Coincidental stroke, major hemorrhage (requiring blood transfusions within the last 5 days), major trauma, or major surgery within the last 5 days * Previous pneumonectomy or active bronchopleural fistula on the affected side * Therapeutic systemic anticoagulation or antiplatelet agents that cannot held for more than 48 hours prior to IET administration * Expected survival of less than 3 months due to a pathologic condition other than that causing the pleural infection

Design outcomes

Primary

MeasureTime frameDescription
IET Failure: Surgery and/or mortality at 90 days90 daysMeasure the rate of IET failure (defined as surgery and/or mortality at 90 days) in both once daily IET and twice daily IET groups.

Secondary

MeasureTime frameDescription
30 Day Mortality30 daysEvaluate rate of mortality at 30 days between the participants receiving once daily IET and twice daily IET
Hospital length of stay90 daysEvaluate length of hospitalization stay between the participants receiving once daily IET and twice daily IET
Oral Morphine Equivalents (OME)From enrollment until day 3 of interventionEvaluate the difference in amount of oral morphine equivalents, which is a standardized method of reporting narcotic analgesic administration by converting opioid narcotics as determined by morphine milligram equivalents (MME) that would yield same result, for daily pain between once daily IET and twice daily IET.
Change of White Blood Cell CountFrom enrollment until day 3 of interventionEvaluate the difference between white blood cell (WBC) count in units of cells per microliter (cells/μL) between once daily IET and twice daily IET.
Change in C-reactive Protein (CRP) levelFrom enrollment until day 3 of interventionEvaluate the difference between C-reactive protein (CRP) level, in milligrams per liter (mg/L) or milligrams per deciliter (mg/dL), between once daily IET and twice daily IET.
Change in FeverFrom enrollment until day 3 of interventionEvaluate the difference between fever (in Celsius) between once daily IET and twice daily IET
Chest tube drainage amountFrom enrollment until day 3 of interventionEvaluate the difference in amount (mL) of pleural fluid drained between once daily and twice daily IET groups
Duration of chest tube placement90 daysEvaluate the number of days of chest tube placement between once daily and twice daily IET groups
Difference in pleural opacification on chest x-ray imaging between once daily IET and twice daily IETFrom enrollment to 48 hours after completing 3 days of intrapleural enzyme therapyMeasure the difference of pleural opacification on chest x-ray imaging, as measured in centimeter cubed (cm\^3), between once daily IET compared to twice daily IET
Percent of participants who have pleural hemorrhage requiring blood transfusionFrom enrollment to 48 hours after completing 3 days of intrapleural enzyme therapyMeasure the percent of participants who have pleural hemorrhage requiring blood transfusion

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORJason Akulian, MD, MPH

University of North Carollina at Chapel Hill

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 20, 2026