'Fitness To Fly' Tests In Children With Type II Respiratory Failure

NCT ID: NCT03824223

Last Updated: 2021-12-08

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

20 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-02-01

Study Completion Date

2021-08-31

Brief Summary

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The conventional hypoxic challenge test might not predict 'fitness-to-fly' equally well in all patients. Patients at risk of hypercapnia with supplemental oxygen are not well studied. Th investigators will study children who have either neuromuscular weakness or central hypoventilation and who require nocturnal or intermittent daytime ventilator support.

The study also aims to assess feasibility of a randomised controlled trial (RCT) comparing the standard hypoxic standard test to a modified test designed to better suit children with type two respiratory failure.

Detailed Description

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This study will assess feasibility of pulse oximetry (SpO2), end tidal carbon dioxide (ETCO2) and transcutaneous carbon dioxide partial pressure (TcCO2) measurement during a modified Hypoxic challenge test (HCT) in 12 children with neuromuscular weakness and 12 with central hypoventilation.

Conditions

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Neuromuscular Diseases Central Hypoventilation

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Participants randomised to uniform balanced crossover (new/old or old/new hypoxic challenge test components).
Primary Study Purpose

OTHER

Blinding Strategy

NONE

Study Groups

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new/old HCT component order

new/old hypoxic challenge test (HCT) component order

Where the new test uses pulse oximetry and transcutaneous CO2 monitoring to guide use of ventilatory support and if necessary supplementary oxygen and the old test uses pulse oximetry to titrate supplementary oxygen.

Group Type OTHER

Hypoxic challenge test

Intervention Type DIAGNOSTIC_TEST

Physiological response to 15% ambient oxygen monitored.

old/new HCT component order

old/new hypoxic challenge test (HCT) component order

Where the old test uses pulse oximetry to titrate supplementary oxygen and the new test uses pulse oximetry and transcutaneous CO2 monitoring to guide use of ventilatory support and if necessary supplementary oxygen.

Group Type OTHER

Hypoxic challenge test

Intervention Type DIAGNOSTIC_TEST

Physiological response to 15% ambient oxygen monitored.

Interventions

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Hypoxic challenge test

Physiological response to 15% ambient oxygen monitored.

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

* ≤18 years
* Neuromuscular weakness or central hypoventilation
* Established nocturnal or intermittent daytime ventilatory support

Exclusion Criteria

* Unable to sit in the plethysmograph
* Cardiac anomaly with right-to-left shunt
Minimum Eligible Age

0 Years

Maximum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University College, London

OTHER

Sponsor Role collaborator

Great Ormond Street Hospital for Children NHS Foundation Trust

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Katharine C Pike, PhD

Role: PRINCIPAL_INVESTIGATOR

Great Ormond Street Hospital for Children NHS Foundation Trust

Locations

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Great Ormond Street Hospital for Children NHS Foundation Trust

London, , United Kingdom

Site Status

Countries

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United Kingdom

Other Identifiers

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17IA16

Identifier Type: -

Identifier Source: org_study_id