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CompletedNCT05886998Updated Dec 12, 2024

Nebulized Heparin for Prevention of Acute Lung Injury in Smoke Inhalation Injury

A Phase 3 interventional study of Heparin and Normal Saline in Smoke Inhalation Injury and Acute Lung Injury, sponsored by Ain Shams University. Completed at 1 site in Egypt. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-12-12.

Sponsored by Ain Shams University · Phase 3, Interventional, and Prevention

Phase
Phase 3
Study type
Interventional
Enrollment
88
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This study aims to examine the effects of nebulized heparin on the clinical outcomes in adult patients suffering smoke inhalation injury.

Patients will be randomized to receive nebulized heparin or an equal volume of normal saline for 14 days and the incidence of acute lung injury will be compared in either group.

Read the detailed description

Adult patients who suffered smoke inhalation injury and who are candidates for elective intubation, have evidence of bronchial burn by fiberoptic bronchoscopy, have no evidence of acute lung injury and no more than 24 hours since inhalation injury will be included.

Patients will be randomized into 2 groups:

Group A (Intervention): Patients will receive 5000 IU heparin mixed with 3 ml saline and nebulized every 4 hours until they are extubated or until 14 days have elapsed whichever is earlier.

Group B (Control): Patients will receive 4 ml of normal saline nebulized every 4 hours until they are extubated or until 14 days have elapsed whichever is earlier.

The primary end point is the VFDs.

02

Conditions studied

  • Smoke Inhalation Injury
  • Acute Lung Injury

Keywords

  • Smoke Inhalation Injury
  • Acute Lung Injury
  • Heparin
03

In context

Respiratory Aspiration

1,092 studies on the registry are indexed under Respiratory Aspiration; 216 are open to participants now.

This study's enrollment of 88 is above the median of 42 across 881 interventional studies indexed under Respiratory Aspiration.

Browse Respiratory Aspiration studies →

Lead sponsor

Ain Shams University is the lead sponsor of 1,876 studies on the registry; 423 are open to participants now.

Of its 32 completed or terminated interventional studies of FDA-regulated products, 0 (0%) 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

Inclusion criteria

  1. Adult patients indicated for elective intubation:
  • History of being trapped in a house or industrial fire.
  • Production of carbonaceous sputum.
  • Perioral facial burns affecting nose, lips, mouth, or throat .
  • Altered level of consciousness at any time after the incident and including confusion.
  • Symptoms of respiratory distress including a sense of suffocation, choking, breathlessness, and wheezing or discomfort affecting the eyes or throat, including irritation of the mucosal membranes.
  • Signs of respiratory distress including stertorous or labored breathing, and tachypnea or auscultatory abnormalities, including crepitations or rhonchi.
  • Hoarseness or loss of voice. 2. Evidence of bronchial burn by bronchoscopy to assess severity of inhalational trauma
  • NO injury: absence of carbonaceous deposits, erythema, oedema, brochorrhea, or obstruction.
  • Mild injury: minor patchy areas of erythema or carbonaceous deposits in proximal or distal bronchi.
  • Moderate injury: moderate degree of erythema, carbonaceous deposits, bronchorrhea, or bronchial obstructions.
  • Sever injury: sever inflammation with friability, copious carbonaceous deposits, bronchorrhea, or obstruction.
  • Massive injury: evidence of mucosal sloughing, necrosis or endoluminal obliteration.

    1. No evidence of acute lung injury at presentation (either by radiology or ABG)
  • Radiological findings: Normal lung without increased interstitial markings, ground glass opacification, or consolidation.
  • ABG findings : PaO2/ Fio2 > 300. 4. Time between inhalational injury and intubation not longer than 24 hours.

Exclusion criteria

Exclusion Criteria:

  1. Burn injury > 24 hours.
  2. History of pulmonary diseases.
  3. Pregnancy or breast feeding.
  4. History of allergy to heparin or HIT.
  5. History or laboratory evidence of coagulopathy.
  6. Burns area > 50% of total body surface area. -
05

Study design

Phase
Phase 3
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
88 participants (actual)

Study arms

  • Experimental
    Group A (Nebulized Heparin)

    Heparin is nebulized via endotracheal tube

    Drug: Heparin

  • Placebo comparator
    Group B (Nebulized Saline)

    Normal saline is nebulized via endotracheal tube

    Other: Normal Saline

Interventions

  • DrugHeparin

    Heparin sodium (Generic, 5000 IU/ml ampoules)

  • OtherNormal Saline

    0.9% sodium chloride solution (normal saline)

    Also known as: Saline

06

What researchers measure

Primary outcomes

  1. VFDs

    Number of days free of mechanical ventilation

    Time frame: 28 days

Secondary outcomes

  1. ICU-free days

    Number of days free from ICU and alive

    Time frame: 28 days

  2. Duration of mechanical ventilation

    Time from institution to termination of mechanical ventilation

    Time frame: 28 days

  3. Mortality

    Survival to ICU discharge

    Time frame: 28 days

  4. Side effects

    Occurrence of heparin-induced adverse effects, e.g., thrombocytopenia, abnormal bleeding

    Time frame: 28 days

  5. P/F ratio

    PaO2/FiO2

    Time frame: 14 days

07

Study locations

1 site
  • Ain Shams University Hospitals
    Cairo, 11517, Egypt
08

References and documents

Publications

  • Murray JF, Matthay MA, Luce JM, Flick MR. An expanded definition of the adult respiratory distress syndrome. Am Rev Respir Dis. 1988 Sep;138(3):720-3. doi: 10.1164/ajrccm/138.3.720. No abstract available. Erratum In: Am Rev Respir Dis 1989 Apr;139(4):1065. PubMed 3202424 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 12, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05886998
Lead sponsor
Ain Shams University
Responsible party
Sameh M. Hakim (Professor, Ain Shams University) — Principal investigator
First posted
Jun 2, 2023
Start date
Jun 1, 2023
Primary completion
Jun 3, 2024
Completion
Jun 3, 2024
Last update
Dec 12, 2024

Study contacts

Sameh M Hakim, MD
principal investigator · Ain Shams University Faculty of Medicine

Oversight

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

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This study is completed, as verified in Jul 2024. You cannot join it, but the record below documents what was studied.

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