NCT05878106

Brief Summary

Background: Creatine supplementation is an effective ergogenic nutrient for athletes, as well as people for people starting a health or fitness program. Resistance training previously been identified as an important method of increasing muscle mass and strength among people, specially in people with cancer to avoid sarcopenia. The potential of creatine supplementation for adaptations produced by strength training in cancer patients are still unknown. Objective: the primary aim of this study is to evaluate the effectiveness of a 16-week supervised resistance training program intervention with and without creatine supplementation in patients with breast cancer. Methods: A multicentre, randomized, double-blind, placebo-controlled study designed to evaluate the effects of creatine supplementation in addition to resistance training in breast cancer patients. Patients will be randomly assigned to 3 groups: a control group (CG) and two experimental groups. The first resistance training group (RG) will perform resistance training, while the second resistance-creatine experimental group (RCG) will perform the same resistance training as the RG and will also receive a 5 g/day supplementation of creatine for the duration of the exercise the 16-week intervention. RG participants will follow the same daily dosing protocol, but in their case, with dextrose/maltodextrin. Resistance training will be a 16-week supervised workout that will consist of a series of resistance exercises (leg press, knee extension, knee bends, chest press, sit-ups, back extensions, pull-ups, and shoulder press) that involved the largest muscle groups of the body and will be performed three times a week on non-consecutive days. Both the RG and the RCG will receive a supplement of soluble protein powder (20-30 g) daily. Discussion: The results of this intervention will help to better understand the potential of non-pharmacological treatment for improving strength and wellbeing values in breast cancer patients with and without creatine supplementation.

Trial Health

57
Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
120

participants targeted

Target at P50-P75 for not_applicable breast-cancer

Timeline
Completed

Started Apr 2024

Geographic Reach
1 country

1 active site

Status
recruiting

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

First Submitted

Initial submission to the registry

April 27, 2023

Completed
29 days until next milestone

First Posted

Study publicly available on registry

May 26, 2023

Completed
11 months until next milestone

Study Start

First participant enrolled

April 8, 2024

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 20, 2025

Completed
8 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 8, 2025

Completed
Last Updated

May 9, 2024

Status Verified

May 1, 2024

Enrollment Period

1 year

First QC Date

April 27, 2023

Last Update Submit

May 7, 2024

Conditions

Outcome Measures

Primary Outcomes (3)

  • Change in maximal resistance (upper and lower body)

    The maximal resistance in the upper and lower body will be measured in terms of the 5-repetition maximum test (5RM) (i.e. the maximum load that can be lifted five times) in chest and leg press exercises, respectively. Also a handgrip dynamometry test will be used to measure grip resistance.

    7 months follow up. Measures at 0, 2, 4 and 7 months.

  • Genetic study

    Saliva samples will be taken from the participants using buccal swabs (4N6FLOQSwab, Life Technologies, Carlsbad, CA). The genetic analysis will be performed using Biomark HD system microfluidic analysis technology (Fluidigm, South San Francisco, CA). From that analysis DNA will be extracted using the QIAmp DNA Mini kit (Qiagen, Hilden, Germany) and will be quantified fluorometrically using Qubit (LifeTechnologies).

    Month 0

  • Change in Micro RNA (mRNA)

    A 5/10 ml of urine will be collected in a 15 ml sterile plastic universal container tube kept at room temperature no more than 60 minutes, then stored at -20°C. Total RNA will be extracted from 400 μl of urine by using miRNeasy Serum/Plasma Kit (QIAGEN).

    Month 0 and 4

Secondary Outcomes (8)

  • Change in Physical function (walking)

    7 months follow up. Measures at 0, 2, 4 and 7 months.

  • Change in Physical function (sitting)

    7 months follow up. Measures at 0, 2, 4 and 7 months.

  • Change in Body composition

    7 months follow up. Measures at 0, 2, 4 and 7 months.

  • Change in dietary pattern

    7 months follow up. Measures at 0, 2, 4 and 7 months.

  • Change in Gastrointestinal discomfort

    7 months follow up. Measures at 0, 2, 4 and 7 months.

  • +3 more secondary outcomes

Study Arms (3)

Control Group

NO INTERVENTION

They receive physical activity and nutrition recommendations.

Resistance training group

EXPERIMENTAL

They will perform resistance training and placebo in the supplementation.

Other: Resistance training

Resistance training and creatine supplementation group

EXPERIMENTAL

They will perform the same resistance training and will also receive creatine supplementation

Dietary Supplement: Creatine supplementationOther: Resistance training

Interventions

Creatine supplementationDIETARY_SUPPLEMENT

5 g/day supplementation of creatine for the duration of the exercise the 16-week intervention. The RG and the RCG will receive a supplement of soluble protein powder (20-30 g) daily.

Resistance training and creatine supplementation group

They will do resistance training. Resistance training will be a 16-week supervised workout that will consist of a series of resistance exercises (leg press, knee extension, knee bends, chest press, sit-ups, back extensions, pull-ups, and shoulder press) that involved the largest muscle groups of the body and will be performed three times a week on non-consecutive days.

Resistance training and creatine supplementation groupResistance training group

Eligibility Criteria

Age18 Years - 60 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Stage pTis-T1-T2-T3 pN0-1 M0 (early stage).
  • Patients who have completed local treatment \[surgery + radiotherapy (RT)\] undergoing clinical follow-up in outpatient clinics with or without adjuvant hormone therapy treatment.
  • Age: ≥18-60 years.
  • ECOG Performance status from 0 to 1 (IK ≥80%).
  • Body mass index above than 18.5.
  • Without excessive alcohol consumption (men \> 21 and women \> 14 units/week).
  • No current or previous illness or injury that may prevent participation and training.
  • No recent systematic strength training.
  • Not taking medications that are known to alter body composition (corticosteroids, metformin...).
  • People who carry out some aerobic training will not be excluded (the activity carried out will be recorded weekly).

You may not qualify if:

  • Having received adjuvant or neoadjuvant chemotherapy.
  • Metastatic carcinoma of the breast.
  • Recurrence or second primary breast.
  • History of previous cancer except previously treated basal cell carcinoma of the skin.
  • Decompensated heart disease, uncontrolled hypertension (TAS\>200 or TAD\>110), heart failure (NYHA II or greater), heart failure or constrictive pericarditis, neutropenia, severe anemia (Hb\<8.0 g/dl), blood count platelets \<50,000 microL.
  • Other health problems in which exercise is contraindicated
  • Perform regular physical activity (150 min/week of moderate activity or 75 of vigorous activity), measured with the PVS questionnaire.
  • Pregnancy.
  • Criterion in the opinion of the investigator of inability to adequately understand the involvement and participation in this clinical study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hospital de Cruces

Bilbao, Bizkaia, 48080, Spain

RECRUITING

Related Publications (33)

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MeSH Terms

Conditions

Breast Neoplasms

Interventions

CreatineResistance Training

Condition Hierarchy (Ancestors)

Neoplasms by SiteNeoplasmsBreast DiseasesSkin DiseasesSkin and Connective Tissue Diseases

Intervention Hierarchy (Ancestors)

GuanidinesAmidinesOrganic ChemicalsAmino AcidsAmino Acids, Peptides, and ProteinsExercise TherapyRehabilitationAftercareContinuity of Patient CarePatient CareTherapeuticsPhysical Therapy ModalitiesPhysical Conditioning, HumanExerciseMotor ActivityMovementMusculoskeletal Physiological PhenomenaMusculoskeletal and Neural Physiological Phenomena

Study Officials

  • Arkaitz Castañeda, PhD

    University of Deusto

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Arkaitz Castañeda, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
INVESTIGATOR
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

April 27, 2023

First Posted

May 26, 2023

Study Start

April 8, 2024

Primary Completion

April 20, 2025

Study Completion

December 8, 2025

Last Updated

May 9, 2024

Record last verified: 2024-05

Data Sharing

IPD Sharing
Will not share

Locations