NCT04219215

Brief Summary

Diabetes mellitus type 2 (T2D) is characterized by insulin resistance of liver and skeletal muscle, which is at least partly due to impaired muscle mitochondrial function. Long-term HBO therapy, as applied for treating the diabetic foot syndrome, has been shown to improve blood glucose concentrations. To study the underlying mechanisms, we want to examin the short-term effect of HBO treatment on insulin sensitivity and mitochondrial oxidative capacity and production of reactive oxygen species (ROS) in a randomized, double blinded, placebo-controlled cross-over trial.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
12

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Feb 2020

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 11, 2019

Completed
4 months until next milestone

First Posted

Study publicly available on registry

January 6, 2020

Completed
26 days until next milestone

Study Start

First participant enrolled

February 1, 2020

Completed
2.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 20, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 20, 2022

Completed
Last Updated

August 15, 2023

Status Verified

August 1, 2023

Enrollment Period

2.6 years

First QC Date

September 11, 2019

Last Update Submit

August 11, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Change in rate of glucose disappearance

    measurement of whole body insulin sensitivity with hyperinsulinamic euglycemic clamp test

    12 months

Study Arms (2)

Hyperbaric oxygenation

EXPERIMENTAL

Patients with T2D receive an 2 hour treatment with 100 % oxygen in a hyperbaric chamber

Device: 100% O2 in oxygen chamberDevice: 21% O2 in oxygen chamber

Ambient Air

EXPERIMENTAL

Patients with T2D receive an 2 hour treatment with 21% oxygen in a hyperbaric chamber

Device: 100% O2 in oxygen chamberDevice: 21% O2 in oxygen chamber

Interventions

Application of 100% O2 in an hyperbaric oxygen chamber

Ambient AirHyperbaric oxygenation

Application of ambient air (21% O2) in an hyperbaric oxygen chamber

Ambient AirHyperbaric oxygenation

Eligibility Criteria

Age18 Years - 75 Years
Sexmale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age ≥ 18 and ≤ 75 years
  • Type 2 diabetes
  • HbA1c ≥ 6 and ≤ 9%
  • BMI ≤ 35 kg / m2

You may not qualify if:

  • Treatment with thiazolidinedione in the last 6 months
  • Uncontrolled hyperglycemia (FPG ≥ 240 mg / dl)
  • vitamin supplement (washing out at least 4 weeks)
  • Patients requiring revascularization
  • Serum CRP ≥ 5 mg / dl
  • Previous treatment for HBO therapy
  • Secondary diabets according to ADA criteria (type 3 B-H, eg pancreopriver diabetes)
  • Type 4 diabetes (gestational diabetes), pregnancy
  • poor glycemic control (HbA1c\> 9.0%)
  • Hyperlipidemia (low density triglycerides and lipoproteins ≥ double upper Reference limit)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

German Diabetes Center

Düsseldorf, North Rhine-Westphalia, 40225, Germany

Location

Related Publications (1)

  • Sarabhai T, Mastrototaro L, Kahl S, Bonhof GJ, Jonuscheit M, Bobrov P, Katsuyama H, Guthoff R, Wolkersdorfer M, Herder C, Meuth SG, Dreyer S, Roden M. Hyperbaric oxygen rapidly improves tissue-specific insulin sensitivity and mitochondrial capacity in humans with type 2 diabetes: a randomised placebo-controlled crossover trial. Diabetologia. 2023 Jan;66(1):57-69. doi: 10.1007/s00125-022-05797-0. Epub 2022 Sep 30.

MeSH Terms

Conditions

Diabetes Mellitus, Type 2

Condition Hierarchy (Ancestors)

Diabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System Diseases

Study Officials

  • Michael Roden, Prof., MD

    German Diabetes Center

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 11, 2019

First Posted

January 6, 2020

Study Start

February 1, 2020

Primary Completion

September 20, 2022

Study Completion

September 20, 2022

Last Updated

August 15, 2023

Record last verified: 2023-08

Data Sharing

IPD Sharing
Will not share

Locations