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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT04311320
Other study ID # STUDY00008434
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date March 26, 2022
Est. completion date December 31, 2023

Study information

Verified date April 2024
Source University of Minnesota
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Purpose: Using a novel oxygen blender prototype with modified bCPAP to manage children 1 month to 5 years of age hospitalized with respiratory distress due to lower respiratory tract infection (LRTI) in low-resource settings is not associated with clinical failure within 1 hour of use. Aim: To investigate if this novel oxygen blender is safe to use among children 1 month to 5 years old hospitalized for respiratory distress from lower respiratory tract infections in a low-resource setting.


Description:

The study will be a prospective cohort feasibility and safety trial. Patients admitted to Chenla Children's Healthcare who meet eligibility criteria will be asked for consent and then enrolled. Once enrolled, the participant will be treated per hospital protocols and stabilized on bCPAP respiratory support. Once stable for 2 hours, the blender will be incorporated into the bCPAP circuit. At this point, the study nurses will begin recording data for the study as well as providing standard medical care per hospital protocols.


Recruitment information / eligibility

Status Completed
Enrollment 33
Est. completion date December 31, 2023
Est. primary completion date March 28, 2023
Accepts healthy volunteers No
Gender All
Age group 0 Days to 5 Years
Eligibility Inclusion Criteria: - Admitted for lung disease and require hospitalization - Admission diagnosis is lower respiratory tract infection or pneumonia or bronchiolitis (any infectious microbe including bacterial, viral, fungal, parasitic) - Have respiratory distress on presentation to the hospital (cough or trouble breathing plus at least one of the following: <92% despite low flow oxygen, central cyanosis, tachypnea, chest indrawing, nasal flaring, grunting, head nodding, convulsions, lethargy, inability to breastfeed or drink) - A bCPAP (electronic) machine is not available to use Exclusion Criteria: - History of asthma - Upper airway obstruction - Diaphragmatic hernia - Pneumothorax - Acute Glasgow Coma score <4 - Cleft Palate - Cyanotic heart disease - Bleeding disorders - Imminent death within 2 hours - Have had abdominal or thoracic surgery

Study Design


Related Conditions & MeSH terms


Intervention

Device:
Low-Resource Oxygen Blender
The device that is being evaluated is a novel low-cost, high access oxygen blender designed to be used in the World Health Organization bCPAP design. It functions by utilizing the Venturi effect, whereby a narrow jet of one fluid (i.e. oxygen) creates a suction effect and entrains surrounding ambient fluid (i.e. room air) into the jet, effectively creating a mixed solution of both fluids. The cost of materials amounts to approximately 1.40 U.S.D. The average time it takes to build a blender and incorporate it into a bCPAP circuit for a new user is approximately 16 minutes. The materials can all be found in a standard hospital, namely 3cc syringes with rubber stops and a 22 gauge hypodermic needle.

Locations

Country Name City State
Cambodia Chenla Children's Healthcare Kratié Kratié Province

Sponsors (1)

Lead Sponsor Collaborator
University of Minnesota

Country where clinical trial is conducted

Cambodia, 

Outcome

Type Measure Description Time frame Safety issue
Primary Feasibility as Measured by Clinical Failure The primary outcome of this study is the feasibility of the investigational device as measured by clinical failure within 1 hour of installing the blender in the bubble continuous positive airway pressure (bCPAP) circuit. Clinical failure is defined as the occurrence of any of the following patient events: intubation, death, or transfer for higher level of care, or any 2 of the following events; <85% O2 saturation after 30 min of treatment, new signs of respiratory distress, or partial pressure of carbon dioxide greater than 60 mmHg and pH less than 7.2 in capillary blood gas.
Outcome will be reported as the percent of participants who experience clinical failure within 1 hour after blender installation.
1 hour
Secondary Oxygen Saturation Oxygen saturation will be measured with pulse oximeter every 6 hours for the length of hospital submission. Outcome will be reported as mean of all measurements per patient. Units are percent. Approximately 7 days
Secondary Oxygen Concentration of Outflow Oxygen concentration of outflow from nasal cannula will be measured with an oxygen analyzer every 6 hours for the length of hospital submission. Outcome will be reported as mean of all measurements per patient. Units are percent oxygen. Approximately 7 days
Secondary Flow of Oxygen from Tank Flow of oxygen from tank will be measured with the gauge on the oxygen canister. Measurements will be recorded every 6 hours for the length of hospital submission. Outcome will be reported as mean of all measurements per patient in units of liters per minute. Approximately 7 days
Secondary Continuous Positive Air Pressure (CPAP) Level CPAP level (as displayed on CPAP device) will be recorded every 6 hours for the length of hospital submission. Outcome will be reported as mean of all measurements per patient. This outcome measure is reported in units of cm of H2O. Approximately 7 days
Secondary Bubble Continuous Positive Air Pressure (bCPAP) Maintenance bCPAP maintenance is defined as the number of times no bubbling in the water column is noted by study staff indicating the need for maintenance. Need for maintenance will be assessed every 2 hours for the length of hospital stay. Number of incidents per patient will be recorded and outcome will be reported as a mean value of all measurements per patient. Approximately 7 days
Secondary Blender Maintenance Blender maintenance is defined as the number of times the blender needs to be repaired or replaced per patient. Need for maintenance will be assessed every 2 hours for the length of hospital stay. Number of incidents per patient will be recorded and outcome will be reported as mean value of all measurements per patient. Approximately 7 days
Secondary Duration of Respiratory Support Outcome will be reported as the length of time (in hours) that respiratory support (i.e. requiring bCPAP and blender) is required during hospital submission. Approximately 7 days
Secondary Number of Patient Transfers Outcome is reported as number of patients who require transfer to a higher level of care. Approximately 7 days
Secondary Number of Patient Intubations Outcome is reported as number of patients requiring intubation. Approximately 7 days
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