Trial Outcomes & Findings for Hyperbaric Oxygen Therapy for Cognition in Diabetic Elderly at High Dementia Risk (NCT NCT03036254)

NCT ID: NCT03036254

Last Updated: 2025-08-11

Results Overview

This analysis involves 11 cognitive performance variables, each measuring a specific aspect of cognition. In general, higher scores indicate better performance (Digit Symbol measures processing speed, Semantic Fluency measures verbal fluency, Word Recall Task measures immediate verbal memory, Delayed Word Recall Test measures delayed verbal memory, and Recall Unit measures immediate and delayed story recall), except for two variables (Trail Making Test Part A measures processing speed, Trail Making Test Part B measures cognitive flexibility) that measure time (where higher values indicate worse performance). These variables are standardized using Z-scores, which allow for combining and comparing values across different scales. The standardized values (Z-scores) of all 11 measures are averaged to create the composite score. Full range of composite score is -1 to 1. Higher composite Z-score reflects better cognitive performance and more favorable outcomes.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

155 participants

Primary outcome timeframe

baseline, 12, weeks, 6 months and 12 months

Results posted on

2025-08-11

Participant Flow

155 participants were enrolled from August 10, 2017, to April 17, 2023. The Covid-19 pandemic caused a 14-month pause, affecting follow-up numbers, but the trial was concluded successfully.

Participant milestones

Participant milestones
Measure
HBOT Intervention
The multiplace HBOT unit at Asaf Harofeh. The inside looks like an airplane, with comfortable chairs for 11 subjects and the nurse who stays throughout the session. The HBOT protocol is 90 minutes, 5 times/week, 60 sessions, 100% oxygen at 2 ATA with 5 minute air breaks every 20 minutes.
Sham Intervention
The sham condition replicates all experiential aspects of the HBOT therapy except for the degree of pressure and oxygen levels. The sham condition exposes subjects to 1.1 ATA, which provides a pressure sensation in addition to the noise of air circulation. Pressure then decreases very slowly during the next half hour; in the last 5 minutes of the session, air is circulated again with its related noise.
Overall Study
STARTED
77
78
Overall Study
COMPLETED
60
67
Overall Study
NOT COMPLETED
17
11

Reasons for withdrawal

Reasons for withdrawal
Measure
HBOT Intervention
The multiplace HBOT unit at Asaf Harofeh. The inside looks like an airplane, with comfortable chairs for 11 subjects and the nurse who stays throughout the session. The HBOT protocol is 90 minutes, 5 times/week, 60 sessions, 100% oxygen at 2 ATA with 5 minute air breaks every 20 minutes.
Sham Intervention
The sham condition replicates all experiential aspects of the HBOT therapy except for the degree of pressure and oxygen levels. The sham condition exposes subjects to 1.1 ATA, which provides a pressure sensation in addition to the noise of air circulation. Pressure then decreases very slowly during the next half hour; in the last 5 minutes of the session, air is circulated again with its related noise.
Overall Study
Adverse Event
6
4
Overall Study
Death
3
1
Overall Study
Lack of Efficacy
5
1
Overall Study
Withdrawal by Subject
3
5

Baseline Characteristics

Hyperbaric Oxygen Therapy for Cognition in Diabetic Elderly at High Dementia Risk

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
HBOT Intervention
n=77 Participants
The multiplace HBOT unit at Asaf Harofeh. The inside looks like an airplane, with comfortable chairs for 11 subjects and the nurse who stays throughout the session. The HBOT protocol is 90 minutes, 5 times/week, 60 sessions, 100% oxygen at 2 ATA with 5 minute air breaks every 20 minutes.
Sham Intervention
n=78 Participants
The sham condition replicates all experiential aspects of the HBOT therapy except for the degree of pressure and oxygen levels. The sham condition exposes subjects to 1.1 ATA, which provides a pressure sensation in addition to the noise of air circulation. Pressure then decreases very slowly during the next half hour; in the last 5 minutes of the session, air is circulated again with its related noise.
Total
n=155 Participants
Total of all reporting groups
Age, Continuous
71.7 years
STANDARD_DEVIATION 4.182 • n=5 Participants
70.2 years
STANDARD_DEVIATION 3.560 • n=7 Participants
70.94 years
STANDARD_DEVIATION 3.938 • n=5 Participants
Sex: Female, Male
Female
27 Participants
n=5 Participants
21 Participants
n=7 Participants
48 Participants
n=5 Participants
Sex: Female, Male
Male
50 Participants
n=5 Participants
57 Participants
n=7 Participants
107 Participants
n=5 Participants
Race/Ethnicity, Customized
MENA: Middle Eastern North African
33 Participants
n=5 Participants
44 Participants
n=7 Participants
77 Participants
n=5 Participants
Race/Ethnicity, Customized
Ashkenazi
41 Participants
n=5 Participants
32 Participants
n=7 Participants
73 Participants
n=5 Participants
Race/Ethnicity, Customized
Unknown
3 Participants
n=5 Participants
2 Participants
n=7 Participants
5 Participants
n=5 Participants
Clinical Dementia Rating - Sum of Boxes (CDR-SB)
1.6 units on a scale
STANDARD_DEVIATION 1.16 • n=5 Participants
1.51 units on a scale
STANDARD_DEVIATION 0.80 • n=7 Participants
1.56 units on a scale
STANDARD_DEVIATION 0.99 • n=5 Participants
Total Mini-Mental State Examination
28.55 units on a scale
STANDARD_DEVIATION 1.28 • n=5 Participants
28.49 units on a scale
STANDARD_DEVIATION 1.36 • n=7 Participants
28.52 units on a scale
STANDARD_DEVIATION 1.32 • n=5 Participants
Total Beck Depression Inventory
5.52 units on a scale
STANDARD_DEVIATION 3.89 • n=5 Participants
5.34 units on a scale
STANDARD_DEVIATION 4.02 • n=7 Participants
5.43 units on a scale
STANDARD_DEVIATION 3.95 • n=5 Participants

PRIMARY outcome

Timeframe: baseline, 12, weeks, 6 months and 12 months

Population: The Covid-19 pandemic caused a 14-month pause, affecting follow-up numbers.

This analysis involves 11 cognitive performance variables, each measuring a specific aspect of cognition. In general, higher scores indicate better performance (Digit Symbol measures processing speed, Semantic Fluency measures verbal fluency, Word Recall Task measures immediate verbal memory, Delayed Word Recall Test measures delayed verbal memory, and Recall Unit measures immediate and delayed story recall), except for two variables (Trail Making Test Part A measures processing speed, Trail Making Test Part B measures cognitive flexibility) that measure time (where higher values indicate worse performance). These variables are standardized using Z-scores, which allow for combining and comparing values across different scales. The standardized values (Z-scores) of all 11 measures are averaged to create the composite score. Full range of composite score is -1 to 1. Higher composite Z-score reflects better cognitive performance and more favorable outcomes.

Outcome measures

Outcome measures
Measure
HBOT Intervention
n=77 Participants
The multiplace HBOT unit at Asaf Harofeh. The inside looks like an airplane, with comfortable chairs for 11 subjects and the nurse who stays throughout the session. The HBOT protocol is 90 minutes, 5 times/week, 60 sessions, 100% oxygen at 2 ATA with 5 minute air breaks every 20 minutes.
Sham Intervention
n=78 Participants
The sham condition replicates all experiential aspects of the HBOT therapy except for the degree of pressure and oxygen levels. The sham condition exposes subjects to 1.1 ATA, which provides a pressure sensation in addition to the noise of air circulation. Pressure then decreases very slowly during the next half hour; in the last 5 minutes of the session, air is circulated again with its related noise.
Change in Global Cognition Score
Visit 1 - Baseline
-0.012 Composite z-score
Standard Deviation 0.65
0.021 Composite z-score
Standard Deviation 0.61
Change in Global Cognition Score
Visit 2 - 12 weeks
0.18 Composite z-score
Standard Deviation 0.67
0.32 Composite z-score
Standard Deviation 0.73
Change in Global Cognition Score
Visit 3 - 6 months
0.38 Composite z-score
Standard Deviation 0.68
0.48 Composite z-score
Standard Deviation 0.64
Change in Global Cognition Score
Visit 4- 12 months
0.34 Composite z-score
Standard Deviation 0.65
0.37 Composite z-score
Standard Deviation 0.77

PRIMARY outcome

Timeframe: baseline, 3 months, and 12 months

Population: The Covid-19 pandemic caused a 14-month pause, affecting follow-up numbers

Cerebral blood flow (CBF) via arterial spin labeling magnetic resonance imaging (ASL-MRI). CBF is defined as the blood volume that flows per unit mass per unit time in brain tissue.

Outcome measures

Outcome measures
Measure
HBOT Intervention
n=77 Participants
The multiplace HBOT unit at Asaf Harofeh. The inside looks like an airplane, with comfortable chairs for 11 subjects and the nurse who stays throughout the session. The HBOT protocol is 90 minutes, 5 times/week, 60 sessions, 100% oxygen at 2 ATA with 5 minute air breaks every 20 minutes.
Sham Intervention
n=78 Participants
The sham condition replicates all experiential aspects of the HBOT therapy except for the degree of pressure and oxygen levels. The sham condition exposes subjects to 1.1 ATA, which provides a pressure sensation in addition to the noise of air circulation. Pressure then decreases very slowly during the next half hour; in the last 5 minutes of the session, air is circulated again with its related noise.
Cerebral Blood Flow
Baseline
219.39 ml blood∕100 g tissue min
Standard Deviation 60.92
207.86 ml blood∕100 g tissue min
Standard Deviation 83.50
Cerebral Blood Flow
3 months
227.68 ml blood∕100 g tissue min
Standard Deviation 68.67
227.64 ml blood∕100 g tissue min
Standard Deviation 49.02
Cerebral Blood Flow
12 months
216.91 ml blood∕100 g tissue min
Standard Deviation 50.54
216.91 ml blood∕100 g tissue min
Standard Deviation 50.54

PRIMARY outcome

Timeframe: Baseline, 12 weeks, 12 months

Population: The Covid-19 pandemic caused a 14-month pause, affecting follow-up numbers

Measures how actively the brain uses glucose, highlighting areas with abnormal activity that may signal diseases like Alzheimer's. Dimmer areas suggest reduced activity seen in disorders like dementia.

Outcome measures

Outcome measures
Measure
HBOT Intervention
n=77 Participants
The multiplace HBOT unit at Asaf Harofeh. The inside looks like an airplane, with comfortable chairs for 11 subjects and the nurse who stays throughout the session. The HBOT protocol is 90 minutes, 5 times/week, 60 sessions, 100% oxygen at 2 ATA with 5 minute air breaks every 20 minutes.
Sham Intervention
n=78 Participants
The sham condition replicates all experiential aspects of the HBOT therapy except for the degree of pressure and oxygen levels. The sham condition exposes subjects to 1.1 ATA, which provides a pressure sensation in addition to the noise of air circulation. Pressure then decreases very slowly during the next half hour; in the last 5 minutes of the session, air is circulated again with its related noise.
Whole Brain SUVr (FDG-PET)
Visit 1 - Baseline
0.009 Standardized Uptake Value (SUV)
Standard Deviation 0.907
-0.022 Standardized Uptake Value (SUV)
Standard Deviation 1.117
Whole Brain SUVr (FDG-PET)
Visit 2 - 12 weeks
-0.128 Standardized Uptake Value (SUV)
Standard Deviation 1.265
0.379 Standardized Uptake Value (SUV)
Standard Deviation 0.973
Whole Brain SUVr (FDG-PET)
Visit 4 - 12 months
-0.266 Standardized Uptake Value (SUV)
Standard Deviation 0.934
-0.0004 Standardized Uptake Value (SUV)
Standard Deviation 0.828

SECONDARY outcome

Timeframe: Baseline, 12 weeks, 6 months, 12 months

Population: Data not collected due to decision not to administered instruments. This decision was based on participant frailty and protocol intensity-not technical issues or non-compliance-and was made to ensure feasibility and ethical conduct of the study. The NIH computerized cognitive test was never administered, and no data was collected at any time.

The sum z-scores for 3 computer-based tests (not language dependent), developed through NIH; EXAMINER assessing executive abilities: http://examiner.ucsf.edu). Early in the study, it became clear that participants-older adults with significant frailty, multiple chronic conditions (average \>4 per participant), and high medication burden (mean \>5 medications)-were finding the assessment protocol burdensome. The protocol already required repeated cognitive testing, MRI, FDG-PET imaging, and other assessments, leading many participants to report fatigue and difficulty concentrating. To prioritize participant well-being, decision made not to add the NIH computerized cognitive tests. The existing paper-and-pencil battery was well-established, sensitive to cognitive changes, and adequately covered executive function and episodic memory. The NIH computerized cognitive test was never administered, and no data was collected at any time.

Outcome measures

Outcome data not reported

SECONDARY outcome

Timeframe: baseline, 12, weeks, 6 months and 12 months

Population: The Covid-19 pandemic caused a 14-month pause, affecting follow-up numbers

Clinical Dementia Rating-Sum of Boxes (CDR-SB), which summarizes impairment in 6 domains (memory, orientation, judgment/problem solving, community affairs, home/hobbies, and personal care) based on subject and informant interviews. Scores in each of these are combined to obtain a composite score ranging from 0 (no symptoms of dementia) through 3 (severe symptoms of dementia). Total scale from 0-18. Higher scores indicating worse cognitive status.

Outcome measures

Outcome measures
Measure
HBOT Intervention
n=77 Participants
The multiplace HBOT unit at Asaf Harofeh. The inside looks like an airplane, with comfortable chairs for 11 subjects and the nurse who stays throughout the session. The HBOT protocol is 90 minutes, 5 times/week, 60 sessions, 100% oxygen at 2 ATA with 5 minute air breaks every 20 minutes.
Sham Intervention
n=78 Participants
The sham condition replicates all experiential aspects of the HBOT therapy except for the degree of pressure and oxygen levels. The sham condition exposes subjects to 1.1 ATA, which provides a pressure sensation in addition to the noise of air circulation. Pressure then decreases very slowly during the next half hour; in the last 5 minutes of the session, air is circulated again with its related noise.
Clinical Dementia Rating-Sum of Boxes (CDR-SB)
Baseline
1.60 score on a scale
Standard Deviation 1.16
1.51 score on a scale
Standard Deviation 0.80
Clinical Dementia Rating-Sum of Boxes (CDR-SB)
12 weeks
0.75 score on a scale
Standard Deviation 0.86
0.67 score on a scale
Standard Deviation 0.81
Clinical Dementia Rating-Sum of Boxes (CDR-SB)
6 months
0.61 score on a scale
Standard Deviation 0.62
0.76 score on a scale
Standard Deviation 0.79
Clinical Dementia Rating-Sum of Boxes (CDR-SB)
12 months
0.71 score on a scale
Standard Deviation 0.75
0.87 score on a scale
Standard Deviation 1.39

SECONDARY outcome

Timeframe: baseline, 12 weeks, 6 months and 12 months

Population: The Covid-19 pandemic caused a 14-month pause, affecting follow-up numbers

This is a 21-item, self-report questionnaire that measures attitudes and symptoms of depression during the last week (i.e. mood, feelings of hopelessness, failure, guilt, self-esteem, etc.). Each question has a set of at least four possible responses, ranging in intensity. Total scale 0-63. Higher scores indicate more severe symptoms of depression.

Outcome measures

Outcome measures
Measure
HBOT Intervention
n=77 Participants
The multiplace HBOT unit at Asaf Harofeh. The inside looks like an airplane, with comfortable chairs for 11 subjects and the nurse who stays throughout the session. The HBOT protocol is 90 minutes, 5 times/week, 60 sessions, 100% oxygen at 2 ATA with 5 minute air breaks every 20 minutes.
Sham Intervention
n=78 Participants
The sham condition replicates all experiential aspects of the HBOT therapy except for the degree of pressure and oxygen levels. The sham condition exposes subjects to 1.1 ATA, which provides a pressure sensation in addition to the noise of air circulation. Pressure then decreases very slowly during the next half hour; in the last 5 minutes of the session, air is circulated again with its related noise.
Beck Depression Inventory (BDI)
Baseline
5.43 score on a scale
Standard Deviation 3.8
5.31 score on a scale
Standard Deviation 4.0
Beck Depression Inventory (BDI)
12 weeks
5.57 score on a scale
Standard Deviation 4.80
4.74 score on a scale
Standard Deviation 4.32
Beck Depression Inventory (BDI)
6 months
6.62 score on a scale
Standard Deviation 6.51
4.88 score on a scale
Standard Deviation 3.61
Beck Depression Inventory (BDI)
12 months
6.14 score on a scale
Standard Deviation 5.8
5.64 score on a scale
Standard Deviation 5.3

SECONDARY outcome

Timeframe: baseline, 12 weeks, 6 months, and 12 months

Population: The Covid-19 pandemic caused a 14-month pause, affecting follow-up numbers

ADL questionnaire Participant The ADL-PI was developed, comprising 15 ADL (e.g. managing medications, managing finances) and 5 physical function (e.g. shopping and meal preparation) questions. All responses relate to the 3 months prior to the time of rating. Total range 0-30, higher scores indicate greater impairment.

Outcome measures

Outcome measures
Measure
HBOT Intervention
n=77 Participants
The multiplace HBOT unit at Asaf Harofeh. The inside looks like an airplane, with comfortable chairs for 11 subjects and the nurse who stays throughout the session. The HBOT protocol is 90 minutes, 5 times/week, 60 sessions, 100% oxygen at 2 ATA with 5 minute air breaks every 20 minutes.
Sham Intervention
n=78 Participants
The sham condition replicates all experiential aspects of the HBOT therapy except for the degree of pressure and oxygen levels. The sham condition exposes subjects to 1.1 ATA, which provides a pressure sensation in addition to the noise of air circulation. Pressure then decreases very slowly during the next half hour; in the last 5 minutes of the session, air is circulated again with its related noise.
Alzheimer's Disease Cooperative Study-Activities of Daily Living - Prevention Questionnaire (ADL-PI)
Baseline
24.34 score on a scale
Standard Deviation 4.041
24.60 score on a scale
Standard Deviation 3.81
Alzheimer's Disease Cooperative Study-Activities of Daily Living - Prevention Questionnaire (ADL-PI)
12 weeks
25.43 score on a scale
Standard Deviation 4.53
25.58 score on a scale
Standard Deviation 3.99
Alzheimer's Disease Cooperative Study-Activities of Daily Living - Prevention Questionnaire (ADL-PI)
6 months
25.71 score on a scale
Standard Deviation 3.76
25.84 score on a scale
Standard Deviation 4.00
Alzheimer's Disease Cooperative Study-Activities of Daily Living - Prevention Questionnaire (ADL-PI)
12 months
26.29 score on a scale
Standard Deviation 3.20
25.47 score on a scale
Standard Deviation 4.02

SECONDARY outcome

Timeframe: Baseline, 12 weeks, 6 months, and 12 months

Population: The Covid-19 pandemic caused a 14-month pause, affecting follow-up numbers

ADL Informant This tool is based on caregiver's report to assess participants' abilities to perform basic and instrumental activities of daily living (ADLs) like bathing, walking and self-grooming. All responses should relate to the 4 weeks prior to the time of rating. Full Scale range from 0-53, higher score indicates more impairment for the participant.

Outcome measures

Outcome measures
Measure
HBOT Intervention
n=77 Participants
The multiplace HBOT unit at Asaf Harofeh. The inside looks like an airplane, with comfortable chairs for 11 subjects and the nurse who stays throughout the session. The HBOT protocol is 90 minutes, 5 times/week, 60 sessions, 100% oxygen at 2 ATA with 5 minute air breaks every 20 minutes.
Sham Intervention
n=78 Participants
The sham condition replicates all experiential aspects of the HBOT therapy except for the degree of pressure and oxygen levels. The sham condition exposes subjects to 1.1 ATA, which provides a pressure sensation in addition to the noise of air circulation. Pressure then decreases very slowly during the next half hour; in the last 5 minutes of the session, air is circulated again with its related noise.
Alzheimer's Disease Cooperative Study-Activities of Daily Living - Mild Cognitive Impairment (ADCS-ADL MCI)
Baseline
45.24 score on a scale
Standard Deviation 6.12
44.71 score on a scale
Standard Deviation 5.9
Alzheimer's Disease Cooperative Study-Activities of Daily Living - Mild Cognitive Impairment (ADCS-ADL MCI)
12 weeks
47.5 score on a scale
Standard Deviation 5.67
48.41 score on a scale
Standard Deviation 4.49
Alzheimer's Disease Cooperative Study-Activities of Daily Living - Mild Cognitive Impairment (ADCS-ADL MCI)
6 months
47.69 score on a scale
Standard Deviation 5.66
47.29 score on a scale
Standard Deviation 5.33
Alzheimer's Disease Cooperative Study-Activities of Daily Living - Mild Cognitive Impairment (ADCS-ADL MCI)
12 months
48.98 score on a scale
Standard Deviation 3.67
48.32 score on a scale
Standard Deviation 6.07

SECONDARY outcome

Timeframe: Baseline, 12 weeks, 6 months, and 12 months

Population: The Covid-19 pandemic caused a 14-month pause, affecting follow-up numbers

Total range 0-30, higher scores indicate better cognitive function.

Outcome measures

Outcome measures
Measure
HBOT Intervention
n=77 Participants
The multiplace HBOT unit at Asaf Harofeh. The inside looks like an airplane, with comfortable chairs for 11 subjects and the nurse who stays throughout the session. The HBOT protocol is 90 minutes, 5 times/week, 60 sessions, 100% oxygen at 2 ATA with 5 minute air breaks every 20 minutes.
Sham Intervention
n=78 Participants
The sham condition replicates all experiential aspects of the HBOT therapy except for the degree of pressure and oxygen levels. The sham condition exposes subjects to 1.1 ATA, which provides a pressure sensation in addition to the noise of air circulation. Pressure then decreases very slowly during the next half hour; in the last 5 minutes of the session, air is circulated again with its related noise.
Total Mini-Mental State Examination (MMSE)
Baseline
28.56 score on a scale
Standard Deviation 1.30
28.49 score on a scale
Standard Deviation 1.37
Total Mini-Mental State Examination (MMSE)
12 weeks
28.26 score on a scale
Standard Deviation 1.63
28.38 score on a scale
Standard Deviation 1.77
Total Mini-Mental State Examination (MMSE)
6 months
28.04 score on a scale
Standard Deviation 1.89
28.53 score on a scale
Standard Deviation 1.53
Total Mini-Mental State Examination (MMSE)
12 months
28.32 score on a scale
Standard Deviation 1.68
28.18 score on a scale
Standard Deviation 2.21

Adverse Events

HBOT Intervention

Serious events: 18 serious events
Other events: 55 other events
Deaths: 3 deaths

Sham Intervention

Serious events: 6 serious events
Other events: 51 other events
Deaths: 1 deaths

Serious adverse events

Serious adverse events
Measure
HBOT Intervention
n=77 participants at risk
The multiplace HBOT unit at Asaf Harofeh. The inside looks like an airplane, with comfortable chairs for 11 subjects and the nurse who stays throughout the session. The HBOT protocol is 90 minutes, 5 times/week, 60 sessions, 100% oxygen at 2 ATA with 5 minute air breaks every 20 minutes.
Sham Intervention
n=78 participants at risk
The sham condition replicates all experiential aspects of the HBOT therapy except for the degree of pressure and oxygen levels. The sham condition exposes subjects to 1.1 ATA, which provides a pressure sensation in addition to the noise of air circulation. Pressure then decreases very slowly during the next half hour; in the last 5 minutes of the session, air is circulated again with its related noise.
Respiratory, thoracic and mediastinal disorders
Acute cough
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Respiratory, thoracic and mediastinal disorders
Atelectasis
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Injury, poisoning and procedural complications
Barotrauma
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Surgical and medical procedures
Bypass surgery
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Cardiac disorders
Cardiac Arrythmia
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Surgical and medical procedures
Cardiac catheterization
3.9%
3/77 • 12 months
0.00%
0/78 • 12 months
General disorders
Chest pain
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
General disorders
Deceased
3.9%
3/77 • 12 months
1.3%
1/78 • 12 months
Nervous system disorders
Dizziness
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Injury, poisoning and procedural complications
Fall
1.3%
1/77 • 12 months
1.3%
1/78 • 12 months
Gastrointestinal disorders
Inguinal hernia
1.3%
1/77 • 12 months
1.3%
1/78 • 12 months
Nervous system disorders
Intracranial pressure increase
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Surgical and medical procedures
Knee arthroplasty
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Lung cancer stage IV
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Injury, poisoning and procedural complications
Metatarsal fracture
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Cardiac disorders
Myocardial infarction
1.3%
1/77 • 12 months
1.3%
1/78 • 12 months
Surgical and medical procedures
Parathyroidectomy
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Infections and infestations
Pneumonia
1.3%
1/77 • 12 months
1.3%
1/78 • 12 months
Eye disorders
Retinal detachment
2.6%
2/77 • 12 months
0.00%
0/78 • 12 months
Surgical and medical procedures
Shoulder replacement
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Nervous system disorders
Stroke
2.6%
2/77 • 12 months
1.3%
1/78 • 12 months
Nervous system disorders
Syncope
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Infections and infestations
Urinary infection
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
General disorders
Weakness
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months

Other adverse events

Other adverse events
Measure
HBOT Intervention
n=77 participants at risk
The multiplace HBOT unit at Asaf Harofeh. The inside looks like an airplane, with comfortable chairs for 11 subjects and the nurse who stays throughout the session. The HBOT protocol is 90 minutes, 5 times/week, 60 sessions, 100% oxygen at 2 ATA with 5 minute air breaks every 20 minutes.
Sham Intervention
n=78 participants at risk
The sham condition replicates all experiential aspects of the HBOT therapy except for the degree of pressure and oxygen levels. The sham condition exposes subjects to 1.1 ATA, which provides a pressure sensation in addition to the noise of air circulation. Pressure then decreases very slowly during the next half hour; in the last 5 minutes of the session, air is circulated again with its related noise.
Infections and infestations
Abscess in the throat
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Acoustic neuromas
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Injury, poisoning and procedural complications
Ankle fracture
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Nervous system disorders
Arachnoid granulation
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Cardiac disorders
Atrial fibrilation
0.00%
0/77 • 12 months
2.6%
2/78 • 12 months
Cardiac disorders
Atrial fibrillation
0.00%
0/77 • 12 months
2.6%
2/78 • 12 months
Eye disorders
Avastin eye injection
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Musculoskeletal and connective tissue disorders
Back pain
6.5%
5/77 • 12 months
1.3%
1/78 • 12 months
Infections and infestations
Bacteremia
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Injury, poisoning and procedural complications
Barotrauma
26.0%
20/77 • 12 months
5.1%
4/78 • 12 months
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Basalioma
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Psychiatric disorders
BDI=22
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Eye disorders
Blurry vision
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Musculoskeletal and connective tissue disorders
Bone spur
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Infections and infestations
Bronchitis
2.6%
2/77 • 12 months
0.00%
0/78 • 12 months
Injury, poisoning and procedural complications
Bruised ear
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Surgical and medical procedures
Cardiac catheterization
3.9%
3/77 • 12 months
1.3%
1/78 • 12 months
Eye disorders
Cataract
7.8%
6/77 • 12 months
2.6%
2/78 • 12 months
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Cavernoma
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
General disorders
Chest pain
2.6%
2/77 • 12 months
0.00%
0/78 • 12 months
Psychiatric disorders
Claustrophobia
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Infections and infestations
Cold
2.6%
2/77 • 12 months
2.6%
2/78 • 12 months
Gastrointestinal disorders
Colon inflammation
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Surgical and medical procedures
Colonoscopy
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Eye disorders
Conjunctivitis
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Infections and infestations
Covid 19
13.0%
10/77 • 12 months
11.5%
9/78 • 12 months
Musculoskeletal and connective tissue disorders
Diabetic foot ulcer
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Eye disorders
Diplopia
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Nervous system disorders
Dizziness
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Nervous system disorders
Essential tremor
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Psychiatric disorders
Exacerbation of post traumatic symptoms (BDI=24)
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Eye disorders
Eye pain
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Nervous system disorders
Facial paralysis
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Injury, poisoning and procedural complications
Fall
6.5%
5/77 • 12 months
5.1%
4/78 • 12 months
Nervous system disorders
Fasciculation
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Injury, poisoning and procedural complications
Fracture of the coccyx
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Eye disorders
Glaucoma
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Infections and infestations
Gum infection
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Injury, poisoning and procedural complications
Hand tendon injury
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Injury, poisoning and procedural complications
Head injury
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Infections and infestations
Herpes zoster
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Injury, poisoning and procedural complications
Hip injury
1.3%
1/77 • 12 months
2.6%
2/78 • 12 months
Surgical and medical procedures
Hip replacement
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Metabolism and nutrition disorders
Hyperglycemia
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Vascular disorders
Hypertension
3.9%
3/77 • 12 months
0.00%
0/78 • 12 months
General disorders
Hypothermia
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Gastrointestinal disorders
Inguinal hernia
0.00%
0/77 • 12 months
5.1%
4/78 • 12 months
Skin and subcutaneous tissue disorders
Itchy skin
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Musculoskeletal and connective tissue disorders
Joint pain
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Renal and urinary disorders
Kidney stones
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Musculoskeletal and connective tissue disorders
Knee effusion
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Injury, poisoning and procedural complications
Knee fracture
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Musculoskeletal and connective tissue disorders
Lumbar disc herniation
1.3%
1/77 • 12 months
1.3%
1/78 • 12 months
Surgical and medical procedures
Lumbar puncture
1.3%
1/77 • 12 months
1.3%
1/78 • 12 months
Injury, poisoning and procedural complications
Metatarsal fracture
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Investigations
MRI brain abnormal
1.3%
1/77 • 12 months
1.3%
1/78 • 12 months
Surgical and medical procedures
Myringotomy
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Gastrointestinal disorders
Nausea
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Nervous system disorders
Neuropathy
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Musculoskeletal and connective tissue disorders
Osteoporosis
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Musculoskeletal and connective tissue disorders
Pains in legs
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Nervous system disorders
Parkinson's disease
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Infections and infestations
Pneumonia
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Injury, poisoning and procedural complications
Post traumatic pain
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Psychiatric disorders
Post-traumatic stress disorder
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Musculoskeletal and connective tissue disorders
Posture abnormal
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Surgical and medical procedures
Prostate resection
1.3%
1/77 • 12 months
3.8%
3/78 • 12 months
Respiratory, thoracic and mediastinal disorders
Pulmonary granuloma
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Injury, poisoning and procedural complications
Shoulder fracture
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Surgical and medical procedures
Shoulder replacement
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Infections and infestations
Sinusitis
0.00%
0/77 • 12 months
2.6%
2/78 • 12 months
Skin and subcutaneous tissue disorders
Skin cyst
2.6%
2/77 • 12 months
0.00%
0/78 • 12 months
Skin and subcutaneous tissue disorders
Skin infection
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Respiratory, thoracic and mediastinal disorders
Sleep apnea
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Gastrointestinal disorders
Stomach ache
0.00%
0/77 • 12 months
2.6%
2/78 • 12 months
Nervous system disorders
Stroke
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Nervous system disorders
Syncope
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Ear and labyrinth disorders
Tinnitus
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Musculoskeletal and connective tissue disorders
Trigger finger
0.00%
0/77 • 12 months
1.3%
1/78 • 12 months
Ear and labyrinth disorders
Vertigo
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Eye disorders
Vision decreased
2.6%
2/77 • 12 months
1.3%
1/78 • 12 months
Eye disorders
Vitreous detachment
1.3%
1/77 • 12 months
0.00%
0/78 • 12 months
Gastrointestinal disorders
Vomiting
0.00%
0/77 • 12 months
3.8%
3/78 • 12 months
General disorders
Weakness
0.00%
0/77 • 12 months
2.6%
2/78 • 12 months

Additional Information

Dr. Mary Sano

Icahn School of Medicine at Mount Sinai

Phone: (212) 659-8838

Results disclosure agreements

  • Principal investigator is a sponsor employee There is an agreement between the sponsor (or its agent) and any non-employee PI(s) that restricts the PI's rights to discuss or publish trial results after the Primary Completion Date.
  • Publication restrictions are in place

Restriction type: OTHER