Trial Outcomes & Findings for Pulmonary Function After Hyperbaric Oxygen Therapy (NCT NCT05088772)

NCT ID: NCT05088772

Last Updated: 2024-05-16

Results Overview

Change from baseline FEV1% defined as the highest value selected from at least three satisfactory pulmonary function tests at each timepoint

Recruitment status

COMPLETED

Target enrollment

86 participants

Primary outcome timeframe

The outcome measure was evaluated at baseline (pre-HBOT) and after four weeks (20 treatments), eight weeks (40 treatments), and twelve weeks (60 treatments)

Results posted on

2024-05-16

Participant Flow

Participant milestones

Participant milestones
Measure
Hyperbaric Oxygen Therapy - Experimental Group
Patients receiving hyperbaric oxygen therapy at the Hyperbaric Medicine Unit (University Health Network, Toronto, ON, Canada) Hyperbaric Oxygen Therapy: Hyperbaric Oxygen Therapy performed at 100% oxygen at 2.0-2.4 ATA, with 1-3 "air breaks", typically at 5 sessions per week, with limited variation depending on the treatment indication and patient/clinician preference.
Overall Study
STARTED
86
Overall Study
COMPLETED
86
Overall Study
NOT COMPLETED
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Race and Ethnicity were not collected from any participant.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Hyperbaric Oxygen Therapy - Experimental Group
n=86 Participants
Patients receiving hyperbaric oxygen therapy at the Hyperbaric Medicine Unit (University Health Network, Toronto, ON, Canada) Hyperbaric Oxygen Therapy: Hyperbaric Oxygen Therapy performed at 100% oxygen at 2.0-2.4 ATA, with 1-3 "air breaks", typically at 5 sessions per week, with limited variation depending on the treatment indication and patient/clinician preference.
Age, Categorical
<=18 years
0 Participants
n=86 Participants
Age, Categorical
Between 18 and 65 years
53 Participants
n=86 Participants
Age, Categorical
>=65 years
33 Participants
n=86 Participants
Age, Continuous
42.5 years
STANDARD_DEVIATION 15.0 • n=86 Participants
Sex: Female, Male
Female
33 Participants
n=86 Participants
Sex: Female, Male
Male
53 Participants
n=86 Participants
Body Mass Index
27.1 kg/m*m
STANDARD_DEVIATION 10.3 • n=86 Participants
Comorbidities
123 total comorbidities
n=86 Participants
Medications
115 total medications
n=86 Participants
Smoking Status
Current Smoker
23 Participants
n=86 Participants
Smoking Status
Former Smoker
16 Participants
n=86 Participants
Smoking Status
Never Smoker
47 Participants
n=86 Participants

PRIMARY outcome

Timeframe: The outcome measure was evaluated at baseline (pre-HBOT) and after four weeks (20 treatments), eight weeks (40 treatments), and twelve weeks (60 treatments)

Change from baseline FEV1% defined as the highest value selected from at least three satisfactory pulmonary function tests at each timepoint

Outcome measures

Outcome measures
Measure
Hyperbaric Oxygen Therapy - Experimental Group
n=86 Participants
Patients receiving hyperbaric oxygen therapy at the Hyperbaric Medicine Unit (University Health Network, Toronto, ON, Canada) Hyperbaric Oxygen Therapy: Hyperbaric Oxygen Therapy performed at 100% oxygen at 2.0-2.4 ATA, with 1-3 "air breaks", typically at 5 sessions per week, with limited variation depending on the treatment indication and patient/clinician preference.
Change in Percentage Predicted Forced Expiratory Volume in One Second (FEV1%)
40 Treatments
87.4 Percentage of FEV1
Interval 82.4 to 92.3
Change in Percentage Predicted Forced Expiratory Volume in One Second (FEV1%)
60 Treatments
84.6 Percentage of FEV1
Interval 77.7 to 91.5
Change in Percentage Predicted Forced Expiratory Volume in One Second (FEV1%)
Pre-HBOT
88.0 Percentage of FEV1
Interval 83.3 to 92.7
Change in Percentage Predicted Forced Expiratory Volume in One Second (FEV1%)
20 Treatments
85.9 Percentage of FEV1
Interval 81.2 to 90.6

PRIMARY outcome

Timeframe: The outcome measure was evaluated at baseline (pre-HBOT) and after four weeks (20 treatments), eight weeks (40 treatments), and twelve weeks (60 treatments)

Change from baseline FVC% defined as the highest value selected from at least three satisfactory pulmonary function tests at each timepoint

Outcome measures

Outcome measures
Measure
Hyperbaric Oxygen Therapy - Experimental Group
n=86 Participants
Patients receiving hyperbaric oxygen therapy at the Hyperbaric Medicine Unit (University Health Network, Toronto, ON, Canada) Hyperbaric Oxygen Therapy: Hyperbaric Oxygen Therapy performed at 100% oxygen at 2.0-2.4 ATA, with 1-3 "air breaks", typically at 5 sessions per week, with limited variation depending on the treatment indication and patient/clinician preference.
Change in Percentage Predicted Forced Vital Capacity (FVC%)
Pre-HBOT
88.8 Percentage of FVC
Interval 83.7 to 94.0
Change in Percentage Predicted Forced Vital Capacity (FVC%)
20 Treatments
86.9 Percentage of FVC
Interval 81.8 to 92.1
Change in Percentage Predicted Forced Vital Capacity (FVC%)
40 Treatments
89.2 Percentage of FVC
Interval 83.8 to 94.5
Change in Percentage Predicted Forced Vital Capacity (FVC%)
60 Treatments
85.9 Percentage of FVC
Interval 79.1 to 92.6

PRIMARY outcome

Timeframe: The outcome measure was evaluated at baseline (pre-HBOT) and after four weeks (20 treatments), eight weeks (40 treatments), and twelve weeks (60 treatments)

Change from baseline FEF25-75% defined as the highest value selected from at least three satisfactory pulmonary function tests at each timepoint

Outcome measures

Outcome measures
Measure
Hyperbaric Oxygen Therapy - Experimental Group
n=86 Participants
Patients receiving hyperbaric oxygen therapy at the Hyperbaric Medicine Unit (University Health Network, Toronto, ON, Canada) Hyperbaric Oxygen Therapy: Hyperbaric Oxygen Therapy performed at 100% oxygen at 2.0-2.4 ATA, with 1-3 "air breaks", typically at 5 sessions per week, with limited variation depending on the treatment indication and patient/clinician preference.
Change in Percentage Predicted Forced Mid-Expiratory Flow Rate (FEF25-75%)
Pre-HBOT
66.9 Percentage of FEF25-75
Interval 57.3 to 76.5
Change in Percentage Predicted Forced Mid-Expiratory Flow Rate (FEF25-75%)
20 Treatments
66.7 Percentage of FEF25-75
Interval 57.1 to 76.3
Change in Percentage Predicted Forced Mid-Expiratory Flow Rate (FEF25-75%)
40 Treatments
66.2 Percentage of FEF25-75
Interval 56.4 to 76.0
Change in Percentage Predicted Forced Mid-Expiratory Flow Rate (FEF25-75%)
60 Treatments
64.6 Percentage of FEF25-75
Interval 53.1 to 76.2

SECONDARY outcome

Timeframe: From date of recruitment until the date of first documented pulmonary complication or most recent follow-up, whichever came first, assessed up to a maximum of 5 years from study recruitment

Any recorded pulmonary complications of HBOT, including but not limited to lung barotrauma, air embolism, and pneumothorax, identified through retrospective chart review

Outcome measures

Outcome measures
Measure
Hyperbaric Oxygen Therapy - Experimental Group
n=86 Participants
Patients receiving hyperbaric oxygen therapy at the Hyperbaric Medicine Unit (University Health Network, Toronto, ON, Canada) Hyperbaric Oxygen Therapy: Hyperbaric Oxygen Therapy performed at 100% oxygen at 2.0-2.4 ATA, with 1-3 "air breaks", typically at 5 sessions per week, with limited variation depending on the treatment indication and patient/clinician preference.
Pulmonary Complications Following Hyperbaric Oxygen Therapy
0 Pulmonary Complications

Adverse Events

Hyperbaric Oxygen Therapy - Experimental Group

Serious events: 0 serious events
Other events: 53 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Hyperbaric Oxygen Therapy - Experimental Group
n=86 participants at risk
Patients receiving hyperbaric oxygen therapy at the Hyperbaric Medicine Unit (University Health Network, Toronto, ON, Canada) Hyperbaric Oxygen Therapy: Hyperbaric Oxygen Therapy performed at 100% oxygen at 2.0-2.4 ATA, with 1-3 "air breaks", typically at 5 sessions per week, with limited variation depending on the treatment indication and patient/clinician preference.
Ear and labyrinth disorders
Ear Barotrauma
19.8%
17/86 • 5 years
Nervous system disorders
Seizure
2.3%
2/86 • 5 years
Eye disorders
Ocular Changes
18.6%
16/86 • 5 years
Psychiatric disorders
Anxiety
20.9%
18/86 • 5 years
Cardiac disorders
Congestive Heart Failure
1.2%
1/86 • 5 years

Additional Information

Dr. Connor Brenna

University of Toronto

Phone: 416 340 3598

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place