Creatine Supplementation and Cognitive and Physical Tests (CREA)

October 4, 2019 updated by: Romain Meeusen, Vrije Universiteit Brussel

The Effect of Creatine Supplementation on Cognitive and Physical Tests

To assess whether brain creatine availability has an effect on cognition. To do so we will seek to increase brain creatine concentration via a creatine supplementation protocol.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
14

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Belgium
      • Brussels, Belgium
        • Human Physiology and Sports Physiotherapy Research Group

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 35 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Healthy (No neurological illness including cardiovascular, renal, and endocrine disorder)
  • Male/female
  • No medication / supplements
  • Non-smoker
  • Low to moderately active
  • Between 18 and 35 years old

Exclusion Criteria:

  • Injuries
  • Illness
  • Use of medication
  • Use of creatine in the last 3 months
  • History of head trauma or seizure
  • Vegetarian diet [24]
  • Not being able to follow up the restrictions and prohibitions for the subjects (see Restrictions and prohibitions for the subjects)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Basic Science
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Creatine supplementation
7-day creatine supplementation
Dietary supplement: Creatine
Participants will have to supplement themselves with creatine for 7 days (20g/day).
Placebo Comparator: Placebo supplementation
7-day calcium lactate supplementation
Dietary supplement: Calcium lactate
Participants will have to supplement themselves with calcium lactate for 7 days (elemental calcium: 0.780g/day).

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Cognitive performance - change in accuracy (%) during a 90-min cognitive task (i.e. Stroop task)
Time Frame: During both lab visits (i.e. after both 7-day supplementation protocols); Accuracy (%) will be assessed during both lab visits with a 90-min cognitive task; Accuracy during the 90-min task will be reported as mean accuracy during 8 blocks of 11min15sec
Accuracy (in %) will be assessed during a cognitive task, this cognitive task will be completed after both 7-day supplementation protocols (i.e. placebo and creatine)
During both lab visits (i.e. after both 7-day supplementation protocols); Accuracy (%) will be assessed during both lab visits with a 90-min cognitive task; Accuracy during the 90-min task will be reported as mean accuracy during 8 blocks of 11min15sec
Cognitive performance - change in reaction time (milliseconds) during a 90-min cognitive task (i.e. Stroop task)
Time Frame: During both lab visits (i.e. after both 7-day supplementation protocols); Reaction time (RT) will be assessed during both lab visits with a 90-min cognitive task; RT during the 90-min task will be reported as mean RT during 8 blocks of 11min15sec
Reaction time (in milliseconds) will be assessed during a cognitive task, this cognitive task will be completed after both 7-day supplementation protocols (i.e. placebo and creatine)
During both lab visits (i.e. after both 7-day supplementation protocols); Reaction time (RT) will be assessed during both lab visits with a 90-min cognitive task; RT during the 90-min task will be reported as mean RT during 8 blocks of 11min15sec

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Physical performance - reaction time (milliseconds) during a 7-min visuomotor reaction time task
Time Frame: During both lab visits (i.e. after both 7-day supplementation protocols); visuomotor reaction time will be assessed during both lab visits with a 7-min visuomotor reaction time task.
Reaction time (in milliseconds) will be assessed during a visuomotor reaction time task, this physical task will be completed after both 7-day supplementation protocols (i.e. placebo and creatine)
During both lab visits (i.e. after both 7-day supplementation protocols); visuomotor reaction time will be assessed during both lab visits with a 7-min visuomotor reaction time task.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Vrije Universiteit Brussel

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
September 10, 2018

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
March 28, 2019

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
March 28, 2019

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
November 8, 2017

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 21, 2017

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
November 24, 2017

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
October 8, 2019

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 4, 2019

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
October 1, 2019

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • CREA

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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