Liberation From Mechanical VentilationNCT07702422
The Accuracy of Combined Parasternal Intercostal Muscle Thickening Fraction and Diaphragmatic Excursion in Predicting Failure of Libration From Mechanical Ventilation
An observational study of Liberation From Mechanical Ventilation, run by Cairo University.
Trial summary
Approximately 20% of patients in the intensive care unit (ICU) requiring mechanical ventilation (MV) experience difficulty and prolonged weaning. Early spontaneous breathing trials (SBT) and timely extubation are essential to avoid complications such as diaphragmatic dysfunction, ventilator-associated pneumonia, and… Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Liberation From Mechanical Ventilation
- How many people
- 70 participants
- Where
- No sites listed yet
- Study dates
- Sep 2026to Jun 2027
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- Adult, Older adult
Study population: * All the patients with difficulty in obtaining an appropriate ultrasound window (diaphragmatic paralysis/injury, ascites, thoracotomy, pneumothorax, pleural effusion, flail chest, and rib fractures). * Neuromuscular diseases. * Severe head injury. * Pregnant and lactating women.
Who may be able to join
- Age ≥ 18 years old.
- Both sexes.
- Patients who have been mechanically ventilated for more than 48 h.
Who cannot join
- All the patients with difficulty in obtaining an appropriate ultrasound window (diaphragmatic paralysis/injury, ascites, thoracotomy, pneumothorax, pleural effusion, flail chest, and rib fractures).
- Neuromuscular diseases.
- Severe head injury.
- Pregnant and lactating women.
About this study
Official title: The Accuracy of Combined Parasternal Intercostal Muscle Thickening Fraction and Diaphragmatic Excursion in Predicting Failure of Libration From Mechanical Ventilation: A Prospective Cohort Study.
Approximately 20% of patients in the intensive care unit (ICU) requiring mechanical ventilation (MV) experience difficulty and prolonged weaning. Early spontaneous breathing trials (SBT) and timely extubation are essential to avoid complications such as diaphragmatic dysfunction, ventilator-associated pneumonia, and airway trauma.
Mechanical ventilation is a vital supportive therapy in critical care. However, both delayed weaning and premature discontinuation are associated with poor outcomes and prolonged ICU stay. Prolonged MV may lead to complications including respiratory muscle dysfunction, ventilator-associated lung injury, and increased healthcare costs, emphasizing the importance of optimal timing of weaning.
Read more
Ultrasonography (US) has emerged as a rapid, non-invasive bedside tool for real-time assessment of respiratory muscle function. It allows evaluation of muscle thickness and contractility, aiding in the detection of diaphragmatic dysfunction.
In cases of diaphragmatic impairment, accessory respiratory muscles, particularly the parasternal intercostal muscles, play a compensatory role. Measurement of parasternal intercostal muscle thickness fraction (PICTF%) has been proposed as a predictor of weaning failure.
Additionally, composite indices such as the rapid shallow breathing index (RSBI) and compliance, rate, oxygenation, and pressure (CROP) index are widely used to assess weaning readiness. A recently proposed composite index combining PICTF (>9%) and diaphragmatic excursion (<15 mm) demonstrated high predictive value for failure of non-invasive ventilation.
Therefore, the present study aims to evaluate the effectiveness of this novel composite index in predicting weaning failure in mechanically ventilated patients.
- Conditions
- Liberation From Mechanical Ventilation
- Keywords
- weaning
What is being measured
The primary outcome is the main question the study is designed to answer.
Ability of a combined PICTF% and diaphragmatic excursion to predict weaning failure .
Parasternal intercostal muscle thickening fraction (%) measured by ultrasound at 5 minutes after the start of the spontaneous breathing trial to evaluate its ability to predict weaning failure and diaphragmatic excursion
Measured: 5minutes after spontaneous breathing trail and after 5minutes of spontaneous breathing trail
Secondary outcomes (1)
• Difference between PICTF % at 5 and 60 min OF SBT. • RSBI at 5and 60 min of SBT. • Correlation between PICTF% and RSBI Diaphragmatic excursion
Measured: at 5 mintues of spontanous breathing trail and at 60 minutes
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted14 Jul 2026
- Study startSep 2026 (estimated)
- Primary completionJan 2027 (estimated)
- Study completionJun 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Liberation From Mechanical VentilationStudies of the same condition, open and under way.
- More trials run by Cairo UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Other
- Time perspective
- Other
- Enrolment
- 70 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Cairo University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Gehad Ahmed Mohamed Amer, Cairo University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07702422
- Sponsor's protocol ID
- md-461-2024
- Status last verified
- Jul 2026
- First submitted
- 22 Feb 2026
- Last updated
- 18 Sep 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 18 Sep 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Accuracy of Combined Parasternal Intercostal Muscle Thickening Fraction and Diaphragmatic Excursion in Predicting Failure of Libration From Mechanical Ventilation: A Prospective Cohort Study.
- ClinicalTrials.gov ID
- NCT07702422
- Acronym / sponsor ID
- md-461-2024
- Conditions
- Liberation From Mechanical Ventilation
- Keywords
- weaning
- Study type
- Observational
- Recruitment status
- Not yet recruiting
- Enrolment
- 70 participants (estimated)
- Lead sponsor
- Cairo UniversityUniversity, hospital or other
- Study start
- Sep 2026 (estimated)
- Primary completion
- Jan 2027 (estimated)
- Study completion
- Jun 2027 (estimated)
- First posted
- 14 Jul 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Approximately 20% of patients in the intensive care unit (ICU) requiring mechanical ventilation (MV) experience difficulty and prolonged weaning. Early spontaneous breathing trials (SBT) and timely extubation are essential to avoid complications such as diaphragmatic dysfunction, ventilator-associated pneumonia, and airway trauma.
Mechanical ventilation is a vital supportive therapy in critical care. However, both delayed weaning and premature discontinuation are associated with poor outcomes and prolonged ICU stay. Prolonged MV may lead to complications including respiratory muscle dysfunction, ventilator-associated lung injury, and increased healthcare costs, emphasizing the importance of optimal timing of weaning.
Ultrasonography (US) has emerged as a rapid, non-invasive bedside tool for real-time assessment of respiratory muscle function. It allows evaluation of muscle thickness and contractility, aiding in the detection of diaphragmatic dysfunction.
In cases of diaphragmatic impairment, accessory respiratory muscles, particularly the parasternal intercostal muscles, play a compensatory role. Measurement of parasternal intercostal muscle thickness fraction (PICTF%) has been proposed as a predictor of weaning failure.
Additionally, composite indices such as the rapid shallow breathing index (RSBI) and compliance, rate, oxygenation, and pressure (CROP) index are widely used to assess weaning readiness. A recently proposed composite index combining PICTF (>9%) and diaphragmatic excursion (<15 mm) demonstrated high predictive value for failure of non-invasive ventilation.
Therefore, the present study aims to evaluate the effectiveness of this novel composite index in predicting weaning failure in mechanically ventilated patients.
Study design
- Observational model
- Other
- Time perspective
- Other
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Age groups
- Adult, Older adult
- Study population
- * All the patients with difficulty in obtaining an appropriate ultrasound window (diaphragmatic paralysis/injury, ascites, thoracotomy, pneumothorax, pleural effusion, flail chest, and rib fractures). * Neuromuscular diseases. * Severe head injury. * Pregnant and lactating women.
Key inclusion criteria (3 listed)
- Age ≥ 18 years old.
- Both sexes.
- Patients who have been mechanically ventilated for more than 48 h.
Key exclusion criteria (4 listed)
- All the patients with difficulty in obtaining an appropriate ultrasound window (diaphragmatic paralysis/injury, ascites, thoracotomy, pneumothorax, pleural effusion, flail chest, and rib fractures).
- Neuromuscular diseases.
- Severe head injury.
- Pregnant and lactating women.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Ability of a combined PICTF% and diaphragmatic excursion to predict weaning failure .
Time frame: 5minutes after spontaneous breathing trail and after 5minutes of spontaneous breathing trail
Parasternal intercostal muscle thickening fraction (%) measured by ultrasound at 5 minutes after the start of the spontaneous breathing trial to evaluate its ability to predict weaning failure and diaphragmatic excursion
1 secondary outcome
• Difference between PICTF % at 5 and 60 min OF SBT. • RSBI at 5and 60 min of SBT. • Correlation between PICTF% and RSBI Diaphragmatic excursion
Time frame: at 5 mintues of spontanous breathing trail and at 60 minutes
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 18 Sep 2026.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
The record lists no contact. Use the official record to reach the sponsor.
Questions about this trial
What is this clinical trial studying?
An observational study of Liberation From Mechanical Ventilation, run by Cairo University.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: opening soon, as of the sponsor's last update on 18 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Ability of a combined PICTF% and diaphragmatic excursion to predict weaning failure . (time frame: 5minutes after spontaneous breathing trail and after 5minutes of spontaneous breathing trail). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Sep 2026.