- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02993874
Creatine Supplementation in Patients With Intermittent Claudication.
February 19, 2019 updated by: Ademar Avelar de Almeida Junior, State University of Maringá
Effect of Creatine Supplementation Associated to Clinical Treatment of the Functional Capacity of Patients With Intermittent Claudication.
The aim of this study will be to verify the effect of creatine supplementation associated to clinical treatment of the functional capacity in patients with intermittent claudication.
Study Overview
Status
Unknown
Conditions
Intervention / Treatment
Detailed Description
The aim of this study will be to verify the effect of creatine supplementation associated to clinical treatment of the functional capacity in patients with intermittent claudication.
The sample will be composed by patients with intermittent claudication of both sexes.
The patients will be ramdomized in a double-blind procedure to receive during seven days (loading) and posteriorly 49 days (maintenance) a creatine (Cr) supplementation or placebo (PLA), associated to the clinical treatment.
Before ("baseline"), after "loading" period and after the maintenance period of supplementation, the patients will go through a functional capacity evaluation.
The fuctional capacity evaluation will be evaluated by a six minute-walking test.
For statistical analysis it will be used the ANOVA of two factors for repeated measurements, having the (Cr and PLA) group and the time (pre, post-loading and post-maintenance), and when needed the post-hoc of Newman keuls.
The adopted level of significance will be P<0.05.
Study Type
Interventional
Enrollment (Anticipated)
90
Phase
- 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 Contact
- Name: Ademar Avelar, PhD
- Phone Number: 5544984376050
- Email: ademaravelar@yahoo.com.br
Study Contact Backup
- Name: Wagner Domingues, MD
- Phone Number: 5511982841355
- Email: wagnerfef@gmail.com
Study Locations
-
-
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Sao Paulo, Brazil, 05652900
- Recruiting
- Israel Institute of Education and Research Albert Einstein
-
Contact:
- Wagner Domingues, MD
- Phone Number: 5511982841355
- Email: wagnerfef@gmail.com
-
-
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
Ages Eligible for Study
50 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- symptom of pain during the six-minute walk test limited by leg pain due to intermittent claudication.
- present peripheral artery disease (Ankle-arm index < 0.90) in one or both limbs.
- Asymptomatic intermittent claudication determined from the clinical history.
- Not have muscle or joint injuries that make it impossible to practice physical activity.
Exclusion Criteria:
- not attending more than 15% of the intervention sessions or visits to the laboratory.
- Stick to a physical activity program in addition to that offered by the study.
- do not use medication regularly.
- aggravation of the disease
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: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Creatine
Creatine monohydrate (Cr) Loading - 4 doses of 5g / day for 7 days Maintenance - 1 dose of 3g / day for 49 days Clinical treatment (30-45 minutes of walking, 3 times per week)
|
The experimental group will ingest for seven days (Loading - phase 1), 5g (4x/day) of creatine monohydrate associated with the clinical treatment (30-45 minutes of walking, 3 times a week).
Subsequently, they will ingest for 49 days (Maintenance - phase 2), 3g (1x / day) creatine monohydrate associated with clinical treatment (30-45 minutes of walking, 3 times a week).
They will be given guidance by telephone, so that they can reach the necessary recommendations for the study.
Other Names:
|
Placebo Comparator: Placebo
Dextrose Loading - 4 doses of 5g / day for 7 days Maintenance - 1 dose of 3g / day for 49 days Clinical treatment (30-45 minutes of walking, 3 times per week)
|
The placebo group will ingest for seven days (Loading - phase 1), 5g (4x / day) of dextrose associated to clinical treatment (30-45 minutes of walking, 3 times per week).
Subsequently, they will ingest for 49 days (Maintenance phase 2), 3g (1x / day) of dextrose associated with the clinical treatment (30-45 minutes of walking, 3 times a week).
They will be given guidance by telephone, so that they can reach the necessary recommendations for the study.
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change walking capacity
Time Frame: Baseline, one and eight weeks
|
The walking capacity will be assessed through a six-minute walk test, before and after one week (Loading - 7 days) and after 7 weeks of supplementation (Maintenance - 49 days) in both groups (Cr and PLA).
|
Baseline, one and eight weeks
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change oxygen saturation
Time Frame: Baseline, one and eight weeks
|
Oxygen saturation will be assessed on calf region during the six-minute walk test through Near-infrared spectroscopy (NIRS, PortaMon, Artinis Medical Systems) before, after one week (Loading - 7 days) and after 7 weeks of supplementation (Maintenance - 49 days) in both groups (Cr and PLA).
|
Baseline, one and eight weeks
|
Change Short Physical Performance Battery
Time Frame: Baseline, one and eight weeks
|
Functional capacity will be assessed through a Short Physical Performance Battery test, after one week (Loading - 7 days) and after 7 weeks of supplementation (Maintenance - 49 days) in both groups (Cr and PLA).
|
Baseline, one and eight weeks
|
Change cognitive function
Time Frame: Baseline, one and eight weeks
|
For cognitive aspetcs evaluation the following procedures will be taken: Stroop test (Victoria Stroop test and N-Back (Operational Memory) will performed after one week (Loading - 7 days) and after 7 weeks of supplementation (Maintenance - 49 days) in both groups (Cr and PLA).
|
Baseline, one and eight weeks
|
Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change brachial blood pressure.
Time Frame: Baseline, one and eight weeks
|
Brachial blood pressure will be assessed through an automatic monitor (HEM-742, Omron Healthcare, Japan) before, after one week (Loading - 7 days) and after 7 weeks of supplementation (Maintenance - 49 days) in both groups (Cr and PLA).
|
Baseline, one and eight weeks
|
Change arterial stiffness
Time Frame: Baseline, one and eight weeks
|
The arterial stiffness will be evaluated by the applanation tonometry method (SphygmoCor, AtCor Medical, Australia) before, after one week (Loading - 7 days) and after 7 weeks of supplementation (Maintenance - 49 days) in both groups (Cr and PLA).
|
Baseline, one and eight weeks
|
Change autonomic cardiac modulation
Time Frame: Baseline, one and eight weeks
|
The autonomic cardiac modulation will be evaluated through a heart rate monitor (Polar, RS 800, USA) after one week (Loading - 7 days) and after 7 weeks of supplementation (Maintenance - 49 days) in both groups (Cr and PLA).
|
Baseline, one and eight weeks
|
Change vasodilatory capacity
Time Frame: Baseline and eight weeks
|
Vasodilatation capacity will be assessed by ultrasound imaging (HDI 5000 Sono CT, Philips, The Netherlands) after one week (Loading - 7 days) and after 7 weeks of supplementation (Maintenance - 49 days) in both groups ( Cr and PLA).
|
Baseline and eight weeks
|
Change body composition
Time Frame: Baseline and eight weeks
|
Body composition will be evaluated after one week (Loading - 7 days) and after 7 weeks of supplementation (Maintenance - 49 days) in both groups (Cr and PLA) using the bio-electrical bioimpedance method (BIS 4200B Xitron Technologies, Inc, San Diego, PLA).
|
Baseline and eight weeks
|
Creatine plasma
Time Frame: Baseline, one and eight weeks
|
Creatine plasma will be evaluated by the High Performance Liquid Chromatography (HPLC) method (FL SPD-20A Shimadzu®, Kyoto, Japan), after one week (loading - 7 days) and after 7 weeks of supplementation (maintenance - 49 days) in both The groups (Cr and PLA).
|
Baseline, one and eight weeks
|
Change of Renal function markers
Time Frame: Baseline, one and eight weeks
|
serum creatinine,creatinine excretion rate and creatinine clearance.
Urine will be collected during the 24-hour period, neglecting the first collection.
For the measurement of the urinary volume, beakers of 500 to 1000 ml were used.
Blood and urinary creatinine levels were determined by the Jaffé method without deproteinization.
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Baseline, one and eight weeks
|
Food habits
Time Frame: Baseline, one and eight weeks
|
For food intake evaluation a 24-hour food diary will be required by previously trained nutritionists, using the nutritional evaluation program Avanutry 3.1.4
|
Baseline, one and eight weeks
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Collaborators
Investigators
- Principal Investigator: Ademar Avelar, PhD, State University of Maringá
- Study Director: Gabriel Cucato, PhD, Israel Institute of Education and Research Albert Einstein
- Study Director: Raphael Ritti-Dias, PhD, Israel Institute of Education and Research Albert Einstein
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)
June 26, 2017
Primary Completion (Anticipated)
February 1, 2019
Study Completion (Anticipated)
June 1, 2019
Study Registration Dates
First Submitted
December 12, 2016
First Submitted That Met QC Criteria
December 12, 2016
First Posted (Estimate)
December 15, 2016
Study Record Updates
Last Update Posted (Actual)
February 21, 2019
Last Update Submitted That Met QC Criteria
February 19, 2019
Last Verified
February 1, 2019
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- Creatine PAD
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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