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The Effects of a Novel Mitochondrial Substrate Supplement on Exercise Performance and Cognitive Function

NCT06374641, Not applicable, Completed, University of Exeter

Trial 10

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

FieldValueSource
TitleThe Effects of a Novel Mitochondrial Substrate Supplement on Exercise Performance and Cognitive FunctionClinicalTrials.gov
NCT numberNCT06374641ClinicalTrials.gov
StatusCompletedClinicalTrials.gov
PhasesNot applicableClinicalTrials.gov
Enrollment40 participants, actualClinicalTrials.gov
Lead sponsorUniversity of ExeterClinicalTrials.gov
ConditionsExercise Performance, Cognitive FunctionClinicalTrials.gov
InterventionsMitochondrial Substrate Supplement, Placebo SupplementClinicalTrials.gov
First posted2024-04-18ClinicalTrials.gov
Last updated2026-05-12ClinicalTrials.gov

Registered outcomes 14

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescriptionSource
PrimaryExercise CapacityDay 15 and 16
Exercise performance as measured by ramp incremental test (older group) or 3 minute all out test (young group) and intermittent exercise test. The ramp incremental cycling test is well-established for the determination of maximal oxygen uptake (VO2max) and gaseous exchange threshold, which are key markers of cardiorespiratory health and predictor of endurance exercise performance. The 3 minute all out test is commonly used to determine critical power and W'. The critical power represents the highest power output an individual can sustain while remaining in an aerobic steady state, and the W' represents the anaerobic capacity. The intermittent test consists of intermittent exercise in which 1 min of severe intensity exercise is alternated with 30 s of lower intensity exercise until the participant reaches their limit of tolerance. Time to exhaustion allows for assessment of exercise capacity.
ClinicalTrials.gov
PrimaryVO2 kinetic response to exerciseDay 16
The VO2 response measured during step test from unloaded to moderate intensity exercise. The participant will cycle against a low resistance and then the resistance on the pedals will be increased abruptly to provide a moderate-intensity work rate which will be maintained for 6 minutes. The VO2 response will then be examined from the onset of exercise to the attainment of a steady state. The VO2 responses to the three step tests will be averaged and modelled to provide information on the rate at which the muscle mitochondria use oxygen to supply energy to meet the demands of the exercise. The steady-state VO2 value for the imposed work rate also allows for the assessment of exercise economy.
ClinicalTrials.gov
PrimaryCognitive Function (Stroop test)Day 15Cognitive function tested via Stroop test administered by computerised system.ClinicalTrials.gov
PrimaryCognitive Function (decision reaction test)Day 15Cognitive function tested via decision reaction test administered by computerised system.ClinicalTrials.gov
PrimaryGrip StrengthDay 15Grip strength measured by hand strength dynamometer.ClinicalTrials.gov
SecondaryCapillary Blood LactateBefore and after each step during the step test, and before and after every 2 exercise bouts during the intermittent exercise protocol.Capillary Blood Lactate used during step tests and intermittent exercise tests to examine the production of lactate and inferred levels of muscle acidosis.ClinicalTrials.gov
SecondaryQuestionnaire 1Day 16To assess participant experience during the supplementation period and study protocol with regard to factors such as fatigue, stress, sleep and perceived effort.ClinicalTrials.gov
SecondaryQuestionnaire 2Day 15To assess participant experience of the supplement with regard to factors such as perceived effects, tolerance and taste.ClinicalTrials.gov
SecondaryVenous Blood [Betaine]Day 15Assessment of Venous Blood \[Betaine\].ClinicalTrials.gov
SecondaryVenous Blood [Choline]Day 15Assessment of Venous Blood \[Choline\].ClinicalTrials.gov
SecondaryVenous blood [S-Adenosyl methionine]Day 15Assessment of Venous Blood \[S-Adenosyl methionine\].ClinicalTrials.gov
SecondaryVenous blood [glucose].Day 15Assessment of Venous Blood \[glucose\].ClinicalTrials.gov
SecondaryVenous blood [insulin].Day 15Assessment of Venous Blood \[insulin\].ClinicalTrials.gov
SecondaryVenous blood [trimethylamine N-oxide].Day 15Assessment of Venous Blood \[triglycerides\].ClinicalTrials.gov

Outcomes 0

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured asSource

Results by group 0

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnitsSource

Participant flow 0

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits countedSource

Adverse events 0

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEventsSource

Adverse event totals 0

The totals the trial posted for each group.

TotalGroupAffectedAt riskSource

Papers 3

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
17473782RESULTPubMed
19661447RESULTPubMed
22033512RESULTPubMed

Grants 0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

ProjectTitlePrincipal investigatorsOrganizationFunderFiscal yearsSource

Trial comparisons 0

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

ComparisonSource

Tests 1

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

TestNamed asSource
Stroop Color-Word TestPrimary outcomeConductCognition

Source 5

FieldValueSource
Releasetrials-2026-11-12-0.4.0ClinicalTrials.gov
Release manifest SHA-2560f4a8d8c48aee2a7573ae0fa94ecbeab70c1adbe449bbc95c424bc7d3e97b9d4ClinicalTrials.gov
Registry capture2026-11-12ClinicalTrials.gov
Results copy, AACT2026-03-23ClinicalTrials.gov
NIH clinical studies file2026-11-13ClinicalTrials.gov

The same record as JSON

Release trials-2026-11-12-0.4.0

ClinicalTrials.gov's posted results, through CTTI's AACT: ClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299 ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

ClinicalTrials.gov: none stated ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

NIH RePORTER's clinical studies and project files: Public domain (NIH RePORTER)