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Clinical Trial Details — Status: Not yet recruiting

Administrative data

NCT number NCT06244160
Other study ID # 8713
Secondary ID
Status Not yet recruiting
Phase N/A
First received
Last updated
Start date March 2024
Est. completion date June 2025

Study information

Verified date December 2023
Source Cardiff and Vale University Health Board
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The goal of this feasibility study is to learn about the ability to use a different form of oxygen therapy (known as high flow oxygen therapy) in patients who have a spinal cord injury in the upper back or neck. The main questions it aims to answer are: 1. Is it possible to recruit patients to the study 2. It is possible to follow the protocol in its current format 3. What is the impact on those receiving the intervention. Participants will be randomised to receive either standard care or high flow oxygen therapy for 10 days following inclusion.


Description:

In the UK, the annual incidence of acute spinal cord injury (SCI) is 19 new cases per million population, contributing to an estimated 50,000 people who are currently living with SCI1. Trauma is the most common cause of SCI, predominantly from falls and road traffic accidents. Damage to the spinal cord occurs both at the time of injury (primary) and in its aftermath (secondary). Effectively treating and preventing secondary cord injury, and managing complications associated with SCI, can make a significant improvement to patient outcomes. Respiratory dysfunction is one of the most common medical complications, as well as the leading cause of reduced Quality of Life (QoL) and mortality, with literature indicating that 67% of individuals with a spinal cord injury present with respiratory complications in the acute stage. The most common respiratory complications are: 1) atelectasis; 2) pneumonia; and 3) respiratory failure. A retrospective review of the patients with acute traumatic spinal cord injuries at C5-T5 level showed a higher prevalence of respiratory complications during the initial hospitalisation just after the injury and suggests the presence of previous respiratory disease, complete motor impairment (AISA A-B) and coexistent thoracic trauma are a predictor of respiratory complications. Individuals with cervical and higher thoracic spinal cord injuries are more likely to develop respiratory complications, primarily due to diaphragm impairment. Due to the above, patients have increased rates of infection, poor sputum clearance and inadequate humidification. These complications lead to prolonged admissions, admission to intensive care and considerable healthcare related costs. As such it is essential to develop new management protocols to reduce the occurrence of pulmonary complications AIRVOTM (a form of non-invasive high flow oxygen therapy, HFOT), which delivers high flow heated and humidified oxygen and air via nasal cannula at a prescribed fraction of inspired oxygen and a maximum flow of 60 L/min, is an attractive alternative to conventional oxygen therapy. Previous studies have shown that HFOT therapy generates a flow-dependent positive airway pressure and improves oxygenation by increasing end-expiratory lung volume, thus suggesting a possible alveolar recruitment associated with high-flow therapy. Although widely used in other clinical areas across the NHS, HFOT delivered via the AIRVOTM system has yet to be evaluated in the spinal cord injury population. Furthermore, HFNC oxygen therapy has been shown to improved swallowing function in a patient with dysphagia associated with respiratory-muscle paralysis following a SCI, further reducing the risk of aspiration and subsequent infection. It has been hypothesised that the use of HFNC prolongs the patient's apnoea tolerance time during swallowing and hence improves the timing of swallowing. This study aims to explore the feasibility of using HFOT (delivered via AIRVOTM) therapy and compare to current treatment (conventional oxygen and humidification administration) for patients who have a spinal cord injury. The secondary outcomes will explore any provisional impacts on length of stay, requirement of admission to intensive care, antibiotic use, and physiotherapy requirements including use of cough augmentation e.g., Mechanical Insufflation - Exsufflation. The results of this proof-of-concept study will be used to further develop local protocols and develop a multi-site research protocol for grant application.


Recruitment information / eligibility

Status Not yet recruiting
Enrollment 30
Est. completion date June 2025
Est. primary completion date March 2025
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: 1. Spinal cord injury between C4 and T4 (Include ASIA A-D) 2. Admitted to spinal injury ward within 24-48hours of injury Exclusion Criteria: 1. Aged under 18 years 2. 3 or more rib fractures or flail 3. Sternal fracture 4. Concomitant lung injury 5. Unable to gain informed consent from participant 6. Contra-indication to using high flow therapy e.g., undrained pneumothorax, facial fractures, nasal obstruction, CSF leak, suspected or confirmed base of skull fracture, active epistaxis or recent functional endoscopic sinus surgery.

Study Design


Intervention

Other:
High flow oxygen therapy
High flow oxygen therapy delivered via nasal cannulae, at 50 litres flow with variable oxygen levels

Locations

Country Name City State
n/a

Sponsors (1)

Lead Sponsor Collaborator
Cardiff and Vale University Health Board

Outcome

Type Measure Description Time frame Safety issue
Primary Recruitment rates This will explore the ability to recruit eligible participants in a timely fashion as per the protocol. It will also capture the participant retainment rates during the study E.g., number of patients recruited, and % of those recruited completing study 10 days
Secondary To determine the acceptability of the intervention To see if the protocol can be followed and patients can receive the intervention - do all patients receive the intervention as planned, or is there any cross-over of interventions. E.g. % of participants completing the intervention as planned 10 days
Secondary Physiotherapy time Duration (minutes) of physiotherapy intervention during the study period 10 days
Secondary Frequency of physiotherapy interventions To understand whether the chosen outcome measures are appropriate - is it appropriate and possible to capture the frequency of physiotherapy intervention during the study period 10 days
Secondary Pulmonary complications Incidence of pulmonary complications following spinal cord injury using the brooks-braun classification 10 days
Secondary Incidence of ICU admission Incidence of ICU admission during the study period 10 days
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