NCT04791397

Brief Summary

The aim of this study is to assess the effect of interval hypoxy-hyperoxic training (IHHT) on the arterial stiffness and elasticity of the liver tissue in patients with metabolic syndrome and on other components of the metabolic syndrome, and the possibility of their reversible recovery after training.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
62

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Apr 2019

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

Study Start

First participant enrolled

April 10, 2019

Completed
1.1 years until next milestone

First Submitted

Initial submission to the registry

May 13, 2020

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 30, 2020

Completed
3 days until next milestone

Study Completion

Last participant's last visit for all outcomes

December 3, 2020

Completed
3 months until next milestone

First Posted

Study publicly available on registry

March 10, 2021

Completed
Last Updated

March 10, 2021

Status Verified

May 1, 2020

Enrollment Period

1.6 years

First QC Date

May 13, 2020

Last Update Submit

March 8, 2021

Conditions

Keywords

Metabolic syndromeVascular AgingNon-alcoholic Fatty Liver DiseaseNon-drug methodsInterval Hypoxic-hyperoxic trainingTrimethylamine N-oxyde (TMAO)Toll-like Receptors (TLR)

Outcome Measures

Primary Outcomes (2)

  • Assess the effect of interval hypoxy-hyperoxic training (IHHT) on the arterial stiffness.

    Assessment of arterial stiffness will be measured by pulse wave velocity using VASERA VS-1500 Fukuda Denshi on next day after course of 15 procedures of IHHT.

    Assessment will be measured next day after 15th procedure of the IHHT procedure.

  • Assess the effect of interval hypoxy-hyperoxic training (IHHT) on the liver fibrosis.

    Assessment of the liver fibrosis and elasticity of liver tissue will be measurement by elastography on FibroScan (Echosense, XL-sensor) by measured liver tissue stiffness (in KPa).

    Assessment will be measured next day after 15th procedure of the IHHT procedure.

Secondary Outcomes (2)

  • Assess the effect of interval hypoxy-hyperoxic training (IHHT) on the lipid profile ( total cholesterol, HDL cholesterol, LDL cholesterol, triglycerides in mmol/l).

    Assessment will be measured next day after 15th procedure of the IHHT procedure.

  • Assess the effect of interval hypoxy-hyperoxic training (IHHT) on the trimethylamine n-oxide in mg/dl.

    Assessment will be measured next day after 15th procedure of the IHHT procedure.

Study Arms (2)

Group trial

EXPERIMENTAL

Included 30 patients, with metabolic syndrome, aged 24-71 year old.

Procedure: Interval hypoxic-hyperoxic training (IHHT) using respiratory therapy unit ReOxy.

Group control

EXPERIMENTAL

Included 30 patients, with metabolic syndrome, aged 24-71 year old.

Procedure: Simulating Interval hypoxic-hyperoxic training (IHHT) using respiratory therapy unit ReOxy.

Interventions

Every patient from control group undergo 15 procedures of IHHT, 5 procedures per week for 3 weeks, 1 procedure lasts 40 minutes. IHHT is a protocol which employs passive (the patient is at rest), short (several minutes) mild normobaric hypoxic exposures alternated with similar duration intervals of breathing hyperoxia, and repeated for 40 minutes. During the initial pretreatment test, the patient inhales air with low oxygen content at atmospheric pressure in a continuous mode through a mask. In the interval therapeutic mode that follows, periods of hypoxia (10-14% O2) are interrupted by periods of reoxygenation by hyperoxia (up to 35% O2). Automatic switching of gas flows (SRT technology). Built-in intelligent software automatically identifies and suggests key treatment parameters for the individual treatment program, by adjusting the starting parameters based upon the results of the pretreatment hypoxic test.

Group trial

Every patient from group control undergo simulating procedures of interval hypoxic-hyperoxic training, 15 procedures, 5 procedures per week for 3 weeks. 1 procedure lasts 40 minutes, in normoxia. Before the start of the course, each patient undergoes a test procedure for 10 minute (in normoxia) for simulate procedures IHHT.

Group control

Eligibility Criteria

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

You may qualify if:

  • Patient's written informed consent.
  • The presence of metabolic syndrome: as having three or more of the following traits, including traits you're taking medication to control:
  • Large waist - A waistline that measures at least 35 inches (89 centimeters) for women and 40 inches (102 centimeters) for men;
  • High triglyceride level - 150 milligrams per deciliter (mg/dL), or 1.7 millimoles per liter (mmol/L), or higher of this type of fat found in blood;
  • Reduced "good" or HDL cholesterol - Less than 40 mg/dL (1.04 mmol/L) in men or less than 50 mg/dL (1.3 mmol/L) in women of high-density lipoprotein (HDL) cholesterol;
  • Increased blood pressure - 130/85 millimeters of mercury (mm Hg) or higher;
  • Elevated fasting blood sugar - 100 mg/dL (5.6 mmol/L) or higher.
  • Must be able to come to the hospital 5 days per week, for 3 weeks.

You may not qualify if:

  • Refusal from further participation in the study.
  • Individual intolerance to hypoxia.
  • Cirrhosis of the liver with liver failure class C according to the classification of Child-Pugh.
  • Alcohol use 140 g / week or more for men, and 70 g / week or more for women.
  • Patients with positive serological reactions to hepatitis B and C.
  • Chronic kidney disease (GFR less than 30 ml / min / 1.73 m 2).
  • Pregnancy, lactation.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University Clinical Hospital №1 Sechenov University

Moscow, 119435, Russia

Location

Related Publications (1)

  • Afina AB, Oleg SG, Alexander AB, Ines D, Alexander Yu S, Nikita VV, Denis ST, Daria GG, Zhang Y, Chavdar SP, Dmitriy VG, Elena AS, Irina VK, Philippe Yu K. The Effects of Intermittent Hypoxic-Hyperoxic Exposures on Lipid Profile and Inflammation in Patients With Metabolic Syndrome. Front Cardiovasc Med. 2021 Aug 27;8:700826. doi: 10.3389/fcvm.2021.700826. eCollection 2021.

MeSH Terms

Conditions

Liver CirrhosisMetabolic SyndromeNon-alcoholic Fatty Liver Disease

Condition Hierarchy (Ancestors)

Liver DiseasesDigestive System DiseasesFibrosisPathologic ProcessesPathological Conditions, Signs and SymptomsInsulin ResistanceHyperinsulinismGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesFatty Liver

Study Officials

  • Philippe Yu Kopylov, professor

    I.M. Sechenov First Moscow State Medical University (Sechenov University)

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 13, 2020

First Posted

March 10, 2021

Study Start

April 10, 2019

Primary Completion

November 30, 2020

Study Completion

December 3, 2020

Last Updated

March 10, 2021

Record last verified: 2020-05

Data Sharing

IPD Sharing
Will not share

Prohibition of local ethics committee

Locations