NCT05697900

Brief Summary

A triple-arm double-blinded placebo-controlled repeated-measures randomized clinical trial in Colombian elite team-sport athletes. The aim is to evaluate the effects on strength-related parameters and body composition after eight weeks of supplementation with creatine monohydrate (CrM) and creatine hydrochloride (Cr-HCl). The study will be reported following the Consolidated Standards of Reporting Trials (CONSORT) extension to Multi-Arm Parallel-Group Randomized Trials. All variables will be measured at baseline and after eight weeks.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
48

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jun 2021

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

June 1, 2021

Completed
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 15, 2022

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

August 22, 2022

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

December 31, 2022

Completed
26 days until next milestone

First Posted

Study publicly available on registry

January 26, 2023

Completed
Last Updated

January 26, 2023

Status Verified

January 1, 2023

Enrollment Period

9 months

First QC Date

December 31, 2022

Last Update Submit

January 15, 2023

Conditions

Keywords

CreatineStrengthBody CompositionAthletic performanceNutritional supplementation

Outcome Measures

Primary Outcomes (3)

  • Lower-limb muscle power

    Countermovement and drop jump will be performed on contact mat (height in centimeters and time of flight in seconds)

    Eight weeks

  • Neuromuscular strength

    The load-velocity profile in squat and bench press exercises will be obtained with a linear position transducer (load in kilograms versus mean propulsive velocity in meters per second).

    Eight weeks

  • Upper-limb muscle strength

    Maximal shoulder external and internal strength will be measure with a isokinetic dynamometer.

    Eight weeks

Secondary Outcomes (1)

  • Body composition

    Eight weeks

Study Arms (3)

Creatine monohydrate

ACTIVE COMPARATOR

5 g of creatine monohydrate per day for eight weeks

Dietary Supplement: Creatine Monohydrate

Creatine hydrochloride

EXPERIMENTAL

5 g of creatine hydrochloride per day for eight weeks

Dietary Supplement: Creatine Hydrochloride

Placebo

PLACEBO COMPARATOR

5 g of maltodextrin per day for eight weeks

Dietary Supplement: Placebo

Interventions

Creatine MonohydrateDIETARY_SUPPLEMENT

The CrM group supplemented the diet with five grams of micronized creatine monohydrate per day for eight weeks. The CrM supplement was fully dissolved in ≈500 mL of water and drank immediately after each training session (in the morning on non-training days).

Creatine monohydrate
PlaceboDIETARY_SUPPLEMENT

A placebo group intakes five grams of maltodextrin daily throughout the study. The placebo supplement was fully dissolved in ≈500 mL of water and drank immediately after each training session (in the morning on non-training days).

Placebo
Creatine HydrochlorideDIETARY_SUPPLEMENT

The Cr-HCl group supplemented the diet with five grams of micronized creatine monohydrate per day for eight weeks. The Cr-HCl supplement was fully dissolved in ≈500 mL of water and drank immediately after each training session (in the morning on non-training days).

Creatine hydrochloride

Eligibility Criteria

Age18 Years - 30 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Practicing team sports at the competitive level (handball and softball)
  • Having at least one year of competitive sports training experience (including strength training at least three times a week),
  • Being attended at INDEPORTES Antioquia.

You may not qualify if:

  • Those who do not wish to participate voluntarily (do not sign informed consent),
  • Those who were taking nutritional supplements (including creatine) eight weeks prior to the start of the study,
  • Those who had a diagnosed pathology or health issues.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

INDEPORTES Antioquia

Medellín, Antioquia, 050034, Colombia

Location

Related Publications (3)

  • Kreider RB, Jager R, Purpura M. Bioavailability, Efficacy, Safety, and Regulatory Status of Creatine and Related Compounds: A Critical Review. Nutrients. 2022 Feb 28;14(5):1035. doi: 10.3390/nu14051035.

    PMID: 35268011BACKGROUND
  • Bonilla DA, Kreider RB, Stout JR, Forero DA, Kerksick CM, Roberts MD, Rawson ES. Metabolic Basis of Creatine in Health and Disease: A Bioinformatics-Assisted Review. Nutrients. 2021 Apr 9;13(4):1238. doi: 10.3390/nu13041238.

    PMID: 33918657BACKGROUND
  • Juszczak E, Altman DG, Hopewell S, Schulz K. Reporting of Multi-Arm Parallel-Group Randomized Trials: Extension of the CONSORT 2010 Statement. JAMA. 2019 Apr 23;321(16):1610-1620. doi: 10.1001/jama.2019.3087.

    PMID: 31012939BACKGROUND

MeSH Terms

Interventions

Creatine

Intervention Hierarchy (Ancestors)

GuanidinesAmidinesOrganic ChemicalsAmino AcidsAmino Acids, Peptides, and Proteins

Study Officials

  • Andres Rojas-Jaramillo, PhD

    INDEPORTES Antioquia

    STUDY DIRECTOR
  • Diego A Bonilla, PhD

    DBSS International SAS

    STUDY CHAIR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Masking Details
This was a double-blinded clinical trial since participants and those assessing the outcomes were blinded to the intervention. All groups were given small metallic plastic bags with five grams of powder identical in size, shape, and color but the placebo contained maltodextrin (Tecnas S.A., Medellín, Colombia).
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: This was a double-blinded placebo-controlled repeated-measures randomized clinical trial in elite team-sport athletes with three arms in parallel.
Sponsor Type
NETWORK
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 31, 2022

First Posted

January 26, 2023

Study Start

June 1, 2021

Primary Completion

February 15, 2022

Study Completion

August 22, 2022

Last Updated

January 26, 2023

Record last verified: 2023-01

Data Sharing

IPD Sharing
Will not share

Locations