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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT00929929
Other study ID # FRA_LEU-09
Secondary ID
Status Completed
Phase N/A
First received June 29, 2009
Last updated October 8, 2014
Start date December 2009
Est. completion date June 2013

Study information

Verified date October 2014
Source Hospital Clinic of Barcelona
Contact n/a
Is FDA regulated No
Health authority Spain: Ministry of Health
Study type Interventional

Clinical Trial Summary

The purpose of this study is to determine whether a nutritional supplement with an amino acid called leucine along with resistance exercise are effective in the improvement of muscle strength and quality of life in elderly people.


Description:

Physiological aging is accompanied by functional loss and changes in different organs, including the skeletal muscle, with a progressive reduction in muscle mass. This is called physiological sarcopenia of the elderly.

In any population of autonomous individuals over 65 years, a proportion between 3% and 32% depending on age, meets the criteria of the so-called Frailty Syndrome. Frailty is characterized by a decrease in reserves and resistance to aggression, conferring increased vulnerability, disability and poor vital prognosis.

A feature of the Frailty Syndrome is the potential reversibility of many of the elements at the initial stages of frailty. Currently, available treatment for frailty is limited. One of the tools should be the prevention of sarcopenia, where nutritional treatment and exercise have a vital role.

Protein synthesis in aged muscle can be improved by increasing leucine concentration above physiological levels by a higher intake. Regarding exercise, progressive resistance training is one of the interventions that have shown better results in the increase of mass and muscle strength in elderly people.

The hypothesis raises the possibility that an intervention consisting of a leucine supplement along with progressive resistance training, is superior to the same training program and a placebo in improving muscle strength and quality of life in elderly people.


Recruitment information / eligibility

Status Completed
Enrollment 30
Est. completion date June 2013
Est. primary completion date December 2012
Accepts healthy volunteers Accepts Healthy Volunteers
Gender Both
Age group 70 Years and older
Eligibility Inclusion Criteria:

- Over 70 years of age.

- Subjects capable of doing resistance exercise.

Exclusion Criteria:

- Hospitalized patients.

- Disabled patients (i.e., not being able to exercise).

- Patients that usually train in resistance exercise.

- Patients with chronic renal failure.

- Patients with a fractured extremity during the last 6 months.

- Patients that follow diets with a protein restriction.

- Patients with oral nutritional support, enteral or parenteral nutrition.

- Patients in a low calorie diet to lose weight.

- Patients using pharmacological treatment with anorexigenic effects, anabolic steroids or corticosteroids.

- Patients with cognitive impairment or major psychiatric disorder.

- Non-signed informed consent.

- Any patient not capable to properly follow the treatment or not considered adequate by the researchers.

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Treatment


Related Conditions & MeSH terms


Intervention

Dietary Supplement:
L-leucine.
10 g of leucine per day, during 12 weeks.
Maltodextrin.
10 g of maltodextrin per day, during 12 weeks.
Behavioral:
Exercise program.
Progressive resistance exercise program 4 days a week, during 12 weeks.

Locations

Country Name City State
Spain Nutrition and Dietetics Unit, Hospital Clínic de Barcelona Barcelona Catalonia

Sponsors (1)

Lead Sponsor Collaborator
Hospital Clinic of Barcelona

Country where clinical trial is conducted

Spain, 

References & Publications (1)

Fried LP, Tangen CM, Walston J, Newman AB, Hirsch C, Gottdiener J, Seeman T, Tracy R, Kop WJ, Burke G, McBurnie MA; Cardiovascular Health Study Collaborative Research Group. Frailty in older adults: evidence for a phenotype. J Gerontol A Biol Sci Med Sci. 2001 Mar;56(3):M146-56. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Other Quality of life Baseline, 4 weeks, 12 weeks No
Primary Muscle strength. Baseline, 4 weeks, 12 weeks No
Secondary Functionality Baseline, 4 weeks, 12 weeks No
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