NCT06961110

Brief Summary

This randomized controlled trial evaluates whether molecular hydrogen supplementation enhances the effectiveness of a 4-week weight loss retreat in overweight and obese adolescents. Outcome measures include: body composition, physical status, blood samples (insulin sensitivity, lipid profiles, markers of oxidative stress and inflammation) and autonomic nervous system function.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
12mo left

Started May 2025

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress50%
May 2025May 2027

First Submitted

Initial submission to the registry

April 29, 2025

Completed
8 days until next milestone

First Posted

Study publicly available on registry

May 7, 2025

Completed
5 days until next milestone

Study Start

First participant enrolled

May 12, 2025

Completed
1.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 1, 2026

Expected
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2027

Last Updated

May 15, 2025

Status Verified

May 1, 2025

Enrollment Period

1.5 years

First QC Date

April 29, 2025

Last Update Submit

May 12, 2025

Conditions

Outcome Measures

Primary Outcomes (2)

  • Body mass index

    Body mass index is calculated as the ratio of body mass (kg) to the square of body height (m2). Body mass is measured using a digital scale to the nearest 0.1 kg and body height is measured using a stadiometer to the nearest 1 cm.

    Baseline and 4 weeks

  • Six-minute walk test

    Six-minute walk test is measured by recording the total distance the participant is able to walk on a flat surface within six minutes. The participant is instructed to walk at his/her own pace in order to walk as far as possible in the given time.

    Baseline and 4 weeks

Secondary Outcomes (17)

  • Body fat

    Baseline and 4 weeks

  • 30-second sit-to-stand test

    Baseline and 4 weeks

  • Maximal isometric grip force

    Baseline and 4 weeks

  • Maximal wall sit

    Baseline and 4 weeks

  • Resting blood lactate

    Baseline and 4 weeks

  • +12 more secondary outcomes

Other Outcomes (8)

  • Waist circumference

    Baseline and 4 weeks

  • Blood pressure

    Baseline and 4 weeks

  • Hydration Status

    Baseline and 4 weeks

  • +5 more other outcomes

Study Arms (2)

Molecular hydrogen

EXPERIMENTAL

Supplementation with molecular hydrogen in the form of hydrogen-rich water administered 1.5 L per day - before breakfast (500 ml), lunch (500 ml) and dinner (500 ml).

Dietary Supplement: Hydrogen-rich water

Placebo

PLACEBO COMPARATOR

Supplementation with drinking water administered 1.5 L per day - before breakfast (500 ml), lunch (500 ml) and dinner (500 ml).

Dietary Supplement: Placebo

Interventions

Hydrogen-rich waterDIETARY_SUPPLEMENT

Hydrogen-rich water with molecular hydrogen concentration 1.2-1.6 ppm. No added sugar or preservatives.

Also known as: H2 Premium Hydrogen Water, H2 World Health & Beauty Company, Ostrava, Czech Republic
Molecular hydrogen
PlaceboDIETARY_SUPPLEMENT

Drinking water with molecular hydrogen concentration 0.0 ppm. No added sugar or preservatives.

Also known as: H2 Premium Hydrogen Water (Placebo), H2 World Health & Beauty Company, Ostrava, Czech Republic
Placebo

Eligibility Criteria

Age11 Years - 18 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Body mass index indicating overweight or obesity, as determined according to the World Health Organization's international percentile charts for children aged 5-19 years.
  • Presence of a regular menstrual cycle in female participants.
  • Signed informed consent from the legal representative.

You may not qualify if:

  • High blood pressure.
  • Dyslipoproteinemia.
  • Cardio-respiratory disorders.
  • Musculoskeletal disorders.
  • Use of any medications regulating heart rhythm or the neurovegetative and hormonal system.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Palacky University, Faculty of Physical Culture

Olomouc, Czech Republic, 77111, Czechia

RECRUITING

MeSH Terms

Conditions

Insulin ResistanceInflammation

Condition Hierarchy (Ancestors)

HyperinsulinismGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Darja Supikova

    Palacky University, Faculty of Physical Culture

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
BASIC SCIENCE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant professor

Study Record Dates

First Submitted

April 29, 2025

First Posted

May 7, 2025

Study Start

May 12, 2025

Primary Completion (Estimated)

November 1, 2026

Study Completion (Estimated)

May 1, 2027

Last Updated

May 15, 2025

Record last verified: 2025-05

Data Sharing

IPD Sharing
Will share

All IPD that underlie results in a publication.

Time Frame
Beginning 1 year after the publication of results with no end date.

Locations