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Improving Rehabilitation In Sarcopenia (IRIS)

A Whey Protein-based Nutritional Supplement Enriched in Vitamin D, Leucine and Calcium for Sarcopenia in Older Adults Undergoing Physical Rehabilitation the IRIS (Improving Rehabilitation In Sarcopenia) Study: a Randomized, Double-blind, Placebo-controlled Trial.

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03120026
Acronym
IRIS
Enrollment
140
Registered
2017-04-19
Start date
2017-05-10
Completion date
2018-12-19
Last updated
2019-01-31

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Sarcopenia

Brief summary

This randomized, double-blind, placebo-controlled supplementation trial tested the hypothesis that nutritional supplementation with muscle-target nutritional supplementation concurrent with regular, controlled physical activity would increase the efficacy of physical rehabilitation in old adults suffering from sarcopenia

Detailed description

This randomized, double-blind, placebo-controlled supplementation trial tested the hypothesis that nutritional supplementation with whey protein, essential amino acids - mainly leucine - vitamin D and calcium concurrent with regular, controlled physical activity would increase the efficacy of physical rehabilitation in old adults suffering from sarcopenia

Interventions

DIETARY_SUPPLEMENTExperimental product

Two servings (40 grams each) of powder (Fortifit; Nutricia) which has to be dissolved in 125 ml of water. Per serving, 20 g whey protein, 3 g total leucine, 9 g carbohydrates, 3 g fat, 800 IU vitamin D, and a mixture of vitamins, minerals, and fibers.

DIETARY_SUPPLEMENTIsocaloric placebo

Two servings (40 grams each) of an isocaloric (maltodextrins) powder which has to be dissolved in 125 ml of water.

Sponsors

Azienda di Servizi alla Persona di Pavia
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
65 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* age 65 years or older * admission for physical rehabilitation * sarcopenia, measured with bioelectrical impedance assessment (BIA) + handgrip strength and gait speed * Mini Mental State Examination ≥18 * Informed consent

Exclusion criteria

* Any malignant disease during the last five years * Known kidney failure (previous glomerular filtration rate \<30 ml/min); * Known liver failure (Child B or C) * Psychiatric disease * Endocrine disorders associated with disorders of calcium metabolism (excluding osteoporosis) * Indications related to the study product: More than 10 µg (400 IU) of daily Vitamin D intake from medical sources More than 500 mg of daily calcium intake from medical sources. Adherence to a high energy or high protein diet up or use of protein containing or amino acid containing nutritional supplements up to three months before starting the study. * Known allergy to milk, milk products or other components of the proposed interventions * Indication to or ongoing artificial nutrition support * Inclusion in other nutrition intervention trials * Investigator's uncertainty about the willingness or ability of the subject to comply with the protocol requirements * Refusal

Design outcomes

Primary

MeasureTime frameDescription
Gait speed8 weeksChange in gait speed (4-meter walking test)/month

Secondary

MeasureTime frameDescription
Physical performance - Tinetti8 weeksChange in Tinetti scale
Physical performance - Timed Up and Go test8 weeksChange in timed up and go test
Physical performance - chair-stand8 weekschair-stand test
Functional status - Barthel8 weeksChange in Barthel index score
Functional status - ADL8 weeksChange in activities of daily living (ADL) score
Functional status - handgrip strength8 weeksChange in handgrip strength
Body weight8 weeksChange in body weight
Costs8 weeksDifference in costs of care (using lenght of stay and duration of rehabilitation as surrogate measures)
Adverse events8 weeksDifference in rate of adverse events related to gastrointestinal intolerance
Muscle mass8 weeksChange in appendicular muscle mass
Cognitive function - trail making test8 weeksChange in trail making test
Cognitive function - Mini Mental State Examination8 weeksChange in Mini Mental State Examination
Quality of life8 weeksChange in 12-item Short-Form Health Survey score (physical/mental components)

Other

MeasureTime frameDescription
Intensity of care8 weeksReduction in the level of intensity of care on a ordinal scale
Type of discharge8 weeksProportion of patients discharged at home

Countries

Italy

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 17, 2026