CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 14 enrolled / 14 target
Drug / intervention
Hydrogen rich water +1 moredietary
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT05799911
NCT05799911N/ACompletedUpdate Overdue (0.4/mo)Completion was 37mo ago
CompareCT.gov

Effect of Molecular Hydrogen Administration on Performance and Body Response on Repeated Exercise and the Following Recovery in National-level Fin-swimmers: A Randomized, Double-blind, Placebo-controlled Crossover Trial

Palacky University·interventional·Posted Apr 5, 2023·Updated Jun 4, 2026

In Brief

A clinical study evaluating Hydrogen rich water and Placebo for Athletic Performance and 2 related conditions. Completed, enrolled 14 participants across 1 site.

Signals

Enrollment appears stalled

Detailed Summary

The aim of this randomized, double-blind, placebo-controlled crossover trial is to evaluate the effect of hydrogen-rich water consumption on performance, recovery, psychological and biochemical outcomes in elite Czech fin-swimmers.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
ConditionsAthletic Performance, Muscle Fatigue, Oxidative Stress
CountriesCzechia
Collaborators--

Timeline

N/ACompletedFinished
202420252026
First PostedApr 5, 2023
Enrollment StartApr 11, 2023
Primary CompletionMay 31, 2023
TodayJul 2, 2026
Enrollment to primary: 2 monthsPosted 3.2 years ago

Arms & Interventions

Molecular hydrogenexperimental

Hydrogen-rich water supplied in 420-ml packages. 3 days before testing day - 3 packages per day, testing day - 6 packages, 15 packages in total.

Dietary Supplement: Hydrogen rich water
Placeboplacebo_comparator

Tap water supplied in 420-ml packages. 3 days before testing day - 3 packages per day, testing day - 6 packages, 15 packages in total.

Dietary Supplement: Placebo

Interventions

Hydrogen rich waterdietary

Hydrogen-rich water with molecular hydrogen concentration 0.9 ppm.

Placebodietary

Tap water with molecular hydrogen concentration 0.0 ppm.