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Portable Oxygen Concentrator (POC) Versus Standard of Care in Long-COVID: Randomized Crossover Exploratory Pilot Study.

Portable Oxygen Concentrator (POC) Versus Standard of Care in Patients With Long-COVID Cognitive Impairment: a Randomized Crossover Exploratory Pilot Study.

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05212831
Acronym
RESTORE
Enrollment
21
Registered
2022-01-28
Start date
2022-06-08
Completion date
2023-03-02
Last updated
2023-07-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

COVID-19

Brief summary

A prospective, open label, randomized, crossover, pilot, exploratory study to describe the effect of the Inogen One® G4 POC on brain hypoxia, peripheral oxygen saturation and cognitive function in adults with longterm- COVID.

Detailed description

After a 2-week screening/baseline evaluation, participants will be randomized in a 1:1 allocation ratio to one of the following 2 sequences: 1) portable oxygen concentrator (POC) for a first 2-week period followed by standard of care (SOC) for a second 2-week period or 2) SOC for a first 2-week period followed by POC for a second 2-week period. There will be a washout period of one week between the two treatment periods. A total of 10 subjects will be enrolled per sequence.

Interventions

DEVICEInogen One® G4

Inogen One® G4 will be used for a minimum of 3h per day at Setting 3 during the intervention period.

Sponsors

The Montreal Health Innovations Coordinating Center (MHICC)
CollaboratorOTHER
Inogen Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Ability and willingness to give written informed consent prior to any study-specific screening procedures and to comply with the requirements of the study 2. Male or female, aged ≥ 18 years of age 3. Diagnosed with Long-COVID 4. Patient self-reported concerns regarding cognitive functioning or recent diagnosis of COVID-19 related cognitive impairment 5. MoCA test scores ranging from 13 to 25/30 at screening 6. Oxygen saturation SpO2 ≤ 93 % on fingertip pulse oximetry and/or \< 60% on brain NIRS, at rest or during effort and/ or 10% relative decrease in brain saturation during exercise as compared to baseline value at screening 7. Ability to perform exercise treadmill test at screening 8. Tolerability of pulsed oxygen (O2) therapy delivered by POC at screening 9. Willingness and ability to wear POC.

Exclusion criteria

1. Contraindication to the use of POC including allergy to cannula material 2. Pregnancy or planning to become pregnant during the study 3. Non-COVID-related cause for cognitive impairment (such as Parkinson's disease, multiple sclerosis, Alzheimer's disease, stroke, brain tumor, or dementia) 4. Subjects with respiratory infection at screening or randomization and/or acute bronchitis requiring antibiotics at the time of randomization or expected during the treatment 5. Participation in other interventional clinical trial within 30 days of randomization or expect to participate in any other investigational clinical trial during the conduct of this trial 6. Subjects who should be excluded in the opinion of the investigator

Design outcomes

Primary

MeasureTime frameDescription
Other neuropsychological tests14+/-3 daysTo describe the effect of the Inogen One® G4 POC on Cognitive health assessments using other neuropsychological tests
COVID-19 related brain hypoxia and peripheral oxygen saturation14+/-3 daysTo describe the effect of the Inogen One® G4 POC on COVID-19 related brain hypoxia and peripheral oxygen saturation
VO2max during cardiopulmonary exercise test14+/-3 daysTo describe the effect of the Inogen One® G4 POC on VO2max during cardiopulmonary exercise test
MoCA test14+/-3 daysTo describe the effect of the Inogen One® G4 POC on Cognitive performance using the MoCA test

Secondary

MeasureTime frameDescription
Functional status14+/-3 daysTo describe the effect of the Inogen One® G4 POC on post-COVID functional status
Anxiety, mood, and subjective cognitive impairment14+/-3 daysTo describe the effect of the Inogen One® G4 POC on anxiety, mood, and subjective cognitive impairment
Pulmonary function14+/-3 daysTo describe the effect of the Inogen One® G4 POC on the post COVID-19 pulmonary function
Safety outcomes14+/-3 daysTo determine the safety outcomes of the Inogen One® G4 POC in this subject population

Countries

Canada

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026