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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT02136615
Registration number
NCT02136615
Ethics application status
Date submitted
2/05/2014
Date registered
13/05/2014
Date last updated
2/12/2015
Titles & IDs
Public title
Does Hyperbaric Oxygen Therapy Lead to a Sustained Increase in Insulin Sensitivity?
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Scientific title
Does Hyperbaric Oxygen Therapy Lead to a Sustained Increase in Insulin
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Secondary ID [1]
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HREC/14/RAH/118
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Universal Trial Number (UTN)
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Trial acronym
HOTAIR3
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Overweight and Obesity
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Insulin Sensitivity
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Condition category
Condition code
Diet and Nutrition
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Obesity
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Inflammatory and Immune System
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Allergies
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Intervention/exposure
Study type
Observational
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Patient registry
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Target follow-up duration
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Target follow-up type
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Description of intervention(s) / exposure
overweight and obese male volunteers - BMI between 23-40 kg/m2
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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Change in insulin sensitivity as measured by FSIGT
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Assessment method [1]
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24-hours after the last HBOT
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Timepoint [1]
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Baseline, Day 5
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Secondary outcome [1]
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Changes in inflammatory markers from blood
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Assessment method [1]
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After first HBOT
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Timepoint [1]
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Baseline, Day 2
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Secondary outcome [2]
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Change in insulin sensitivity by FSIGT
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Assessment method [2]
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During third and final HBOT
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Timepoint [2]
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Baseline, Day 4
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Secondary outcome [3]
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Changes in inflammatory markers from blood
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Assessment method [3]
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After second HBOT
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Timepoint [3]
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Baseline, Day 3
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Secondary outcome [4]
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Changes in inflammatory markers from blood
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Assessment method [4]
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24-hours after final HBOT
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Timepoint [4]
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Baseline, Day 5
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Eligibility
Key inclusion criteria
* Age > 18 (no specific upper age limit)
* All participants will be assessed by a hyperbaric physician to determine fitness to enter the hyperbaric chamber - the standard clinical criteria of the Hyperbaric Medicine Unit will be used
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Minimum age
18
Years
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Maximum age
No limit
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Sex
Males
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Can healthy volunteers participate?
Yes
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Key exclusion criteria
* Personal history of Diabetes or major psychiatric disorders,
* use of prescribed or non-prescribed medications which may affect glucose homeostasis (eg steroids)
* uncontrolled asthma, current fever, upper respiratory infections
* individuals who regularly perform high intensity exercise (>2 week)
* current intake of > 140g alcohol/week
* current smokers of cigarettes/cigars/marijuana
* current intake of any illicit substance
* experience claustrophobia in confined spaces
* has donated blood within past 3-months
* has been involved in any other study within the past 3-months
* unable to comprehend study protocol
* any other contraindication to HBOT (eg Eustachian tube dysfunction making middle ear inflation ineffective)
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Study design
Purpose
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Duration
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Selection
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Timing
Prospective
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
1/07/2014
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
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Actual
1/10/2015
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Sample size
Target
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Accrual to date
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Final
12
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Recruitment in Australia
Recruitment state(s)
SA
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Recruitment hospital [1]
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Hyperbaric Medicine Unit, Royal Adelaide Hospital - Adelaide
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Recruitment postcode(s) [1]
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5000 - Adelaide
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Funding & Sponsors
Primary sponsor type
Other
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Name
University of Adelaide
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Address
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Country
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Other collaborator category [1]
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Other
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Name [1]
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Australasian Hyperbaric & Diving Medicine Research Trust
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Address [1]
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Country [1]
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Ethics approval
Ethics application status
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Summary
Brief summary
In a recent series of studies performed by our group, we have shown that exposure to hyperbaric oxygen (HBOT) leads to an increase in insulin sensitivity in male subjects and that this improvement can be measured in all men, not just those with diabetes. The aim of this study is to investigate the time course of this effect and explore the mechanisms involved when exposure to HBOT induces an increase in peripheral insulin sensitivity. Aims: 1. To determine whether the insulin sensitising effect of HBOT is apparent 24-hours after an HBO session. 2. To examine mechanisms underpinning the increase in insulin sensitivity following HBOT.
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Trial website
https://clinicaltrials.gov/study/NCT02136615
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Trial related presentations / publications
Wilkinson D, Chapman IM, Heilbronn LK. Hyperbaric oxygen therapy improves peripheral insulin sensitivity in humans. Diabet Med. 2012 Aug;29(8):986-9. doi: 10.1111/j.1464-5491.2012.03587.x.
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Public notes
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Contacts
Principal investigator
Name
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Leonie K Heilbronn, PhD
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Address
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University of Adelaide, Discipline of Medicine
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Country
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Phone
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Fax
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Email
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Contact person for public queries
Name
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Address
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Country
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Phone
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Fax
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Email
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Contact person for scientific queries
No information has been provided regarding IPD availability
What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
No documents have been uploaded by study researchers.
Results not provided in
https://clinicaltrials.gov/study/NCT02136615
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