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Creatine HCl and Creatine Ethyl Ester Supplementation in Perimenopausal and Menopausal Women

The Effects of 8-Week Creatine HCl and Creatine Ethyl Ester Supplementation on Cognitive Performance, Multidimensional Fatigue, Brain Metabolism, and Biochemical Indices in Perimenopausal and Menopausal Women

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06660004
Acronym
CONCRET-MENOPA
Enrollment
36
Registered
2024-10-26
Start date
2024-11-15
Completion date
2025-05-31
Last updated
2025-12-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Menopausal, Perimenopause

Keywords

creatine, brain metabolism, cognition, fatigue

Brief summary

The goal of this randomized controlled double-blind parallel-group interventional trial is to evaluate the effects of of dietary supplementation with creatine HCl and creatine ethyl ester supplementation on cognitive performance, multidimensional fatigue, brain metabolism, and biochemical indices in perimenopausal and menopausal women

Interventions

DIETARY_SUPPLEMENTDietary Supplement: Experimental 1 Creatine HCl

Creatine hcl

DIETARY_SUPPLEMENTDietary Supplement: Experimental 2 Creatine HCl

Creatine hcl

DIETARY_SUPPLEMENTDietary Supplement: Experimental 3 Creatine Ethyl ester

Creatine ethyl ester

DIETARY_SUPPLEMENTDietary Supplement: Experimental 4 Placebo

Placebo

Sponsors

University of Novi Sad, Faculty of Sport and Physical Education
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
FEMALE
Age
40 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* Body mass index 18.5 - 29.9 kg/m2 * Free of major chronic diseases or acute disorders (including AD and dementia (MMSE score \> 25 points) * MENOPAUSAL: no menstrual cycle for consecutive 12 months (with no other obvious causes) * PERIMENOPAUSAL: Still menstruating (regular or irregular) but have at least one of the following symptoms: (1) hot flashes, (2) sleep disturbances, (3) mood swings, and (4) concentration difficulties * Given written informed consent

Exclusion criteria

* History of dietary supplement use 4 weeks before the study commences * Pregnancy (or planning pregnancy) * Abnormal values for lab clinical chemistry (\> 2 SD) * Unwillingness to return for follow-up analysis * Participation in other clinical trials

Design outcomes

Primary

MeasureTime frameDescription
FatigueChange from baseline fatigue at 8 weeksLevel of fatigue as assessed by the Multidimensional Fatigue Inventory (MFI)

Secondary

MeasureTime frameDescription
Time to exhaustionChange from baseline time to exhaustion at 8 weeksRunning time to exhaustion during incrementaltestontreadmill
Brain creatineChange from baseline brain creatine concentrations at 8 weeksMagnetic resonance spectra for brain creatine concentrations
Cognitive interferenceChange from baseline fatigue at 8 weeksAbility to inhibit cognitive interference as assessed by the The Stroop Color and Word Test
Amyloid bChange from baseline time to exhaustion at 8 weeksSerum levels of amyloid b

Countries

Serbia

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026