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Investigation of cognitive performance and neurometabolic changes using 31P-MRS and 1H-MRS following partial sleep deprivation after a single creatine dose.

Investigation of cognitive performance and neurometabolic changes using 31P-MRS and 1H-MRS following partial sleep deprivation after a single creatine dose. - Krea2

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00039845
Enrollment
30
Registered
2026-04-02
Start date
2025-06-16
Completion date
Unknown
Last updated
2026-04-27

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

Conditions

The effect of creatine on cognitive performance during sleep deprivation

Interventions

Group 1: Arm 1, intervention group: Single oral supplementation of 0.2 g/kg body weight of the dietary supplement creatine monohydrate following an evening baseline measurement. Participants remain in

Sponsors

Forschungszentrum Jülich
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 60 Years

Inclusion criteria

Inclusion criteria: At least 18 years of age. A written declaration of consent must be provided

Exclusion criteria

Exclusion criteria: Age over 60 years. -Any medication affecting the study parameters, particularly centrally active drugs and substances. -Kidney disease, renal insufficiency, diabetes, or any evidence of impaired renal function. -Lifetime cumulative intake of nephrotoxic substances in hazardous amounts (e.g., a total of 1 kg of ibuprofen). -Intake of more than 30 g of creatine supplements within the 6 months prior to the measurement. -Intake of any creatine dietary supplements within the 3 weeks prior to the measurement. -Epilepsy; one or more seizures after the age of 12. -Diabetes (already mentioned, but kept for consistency). -Chronic sleep disorders. -Drug addiction, smoking. -Pregnancy.

Design outcomes

Primary

MeasureTime frame
Investigation of the effect of acute supplementation with 0.2 g/kg creatine monohydrate, compared with a placebo, on cognitive performance (particularly working memory and executive functions) during 21 hours of acute sleep deprivation. Data will be collected using cognitive tests.

Secondary

MeasureTime frame
1. Analysis of gender-specific differences in the effectiveness of creatine supplementation on cognitive performance under sleep deprivation. 2. Investigation of the correlation between the degree of subjective fatigue and objective test performance in specific task sets

Countries

Germany

Contacts

Public ContactAli Gordjinejad

Forschungszentrum Jülich

a.gordjinejad@fz-juelich.de492461614636

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: May 1, 2026