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SarcopeniaNUTRIMALNCT03429491

Novel Nutrition Solutions for Sarcopenia

A study testing Leucine-enriched protein and LC n-3 PUFA in people with Sarcopenia, run by University College Dublin at 1 site in Ireland.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study will examine the effect of leucine-enriched protein supplementation, alone and in combination with long chain n-3 polyunsaturated fatty acids (LC n-3 PUFA), on muscle mass and function in older adults at risk of sarcopenia. Read more about this study

Who is it for?
Ages 65 years and olderHealthy volunteers can take part
Conditions the study is for
Sarcopenia
What is being tested?
Leucine-enriched protein and LC n-3 PUFA
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
108 participants
Where
1 siteIreland
Study dates
1 Jun 2017to 21 Dec 2018
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 65 years and older
  • All sexes
  • Healthy volunteers accepted
  • Older adult

Who may be able to join

  • Age: ≥65 y
  • Sex: males and females
  • Low muscle mass (assessed via bioelectrical impedance analysis using cut-offs from Janssen, 2004) and/or low handgrip strength (< 30 kg men, <20kg women)

Who cannot join

  • BMI >35 kg/m2
  • Cancer - malignancy in the past 5 years
  • Multiple Sclerosis, Parkinsons Disease
  • Chronic kidney disease
  • Liver failure
  • Diabetes
Show all 17Show fewer
  • Conditions that will affect ability to consume, digest and/or absorb the study drink (i.e. cows milk protein allergy, inflammatory bowel disease)
  • Smokers
  • Cognitive function < 21 on Mini-Mental State Examination
  • Excess alcohol intake
  • Regular resistance training
  • Total walking incapacity
  • Musculoskeletal or neuromuscular impairments that could interfere with strength testing
  • Medications interfering with muscle metabolism
  • Adherence to a high energy or high protein diet three months before starting and during the study. Use of protein containing or amino acid containing nutritional supplements three months before starting and during the study.
  • High consumers of oily fish.
  • Weight change > 3 kg past 3 months

Trial locations and contacts

1 site in 1 country.

Ireland1 site
  • University College Dublin

    Dublin

Other trials in Ireland

About this study

Official title: Novel Nutrition Solutions in Elderly at Risk of Sarcopenia: LC n-3 PUFA and Leucine Combinations

This study will examine the effect of leucine-enriched protein supplementation, alone and in combination with long chain n-3 polyunsaturated fatty acids (LC n-3 PUFA), on muscle mass and function in older adults at risk of sarcopenia.

The investigators hypothesize that LC n-3 PUFA supplementation will further enhance the efficacy of the leucine-enriched protein.

Read the detailed description

The progressive loss of skeletal muscle mass and function with advancing age, termed sarcopenia, contributes substantially to disability, physical dependence, and mortality among older adults. Aging is associated with an attenuated muscle protein synthetic response to the ingestion of small to moderate protein doses compared to younger persons. Several studies have reported that the acute, postprandial muscle protein synthesis (MPS) response to a suboptimal protein dose is enhanced when the leucine content of the protein bolus is increased. This indicates that supplementing the lower-protein daily meals (i.e., breakfast and lunch) with leucine may represent a practical strategy to augment the MPS response to these meals and, subsequently, attenuate sarcopenic muscle mass loss over time. In addition, LC n-3 PUFA supplementation has been shown to enhance the MPS response to amino acid infusion older adults suggesting that combined leucine and LC n-3 PUFA supplementation be particularly effective for improving daily MPS, muscle mass and function in older adults.

Conditions
Sarcopenia
Being tested
Placebo, Leucine-enriched protein, LC n-3 PUFA
Medical subject headings
Sarcopenia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • PlaceboDietary supplement

    Protein-free, LC n-3 PUFA-free juice based supplement

  • Leucine-enriched proteinDietary supplement

    Leucine-enriched whey protein

  • LC n-3 PUFADietary supplement

    LC n-3 PUFA

Study groups in NCT03429491
Study groupRoleWhat they receive
PlaceboPlacebo comparatorProtein-free, LC n-3 PUFA-free juice based supplement
Receives: Dietary Supplement: Placebo
Leucine-enriched proteinExperimentalJuice based supplement containing leucine-enriched protein
Receives: Dietary Supplement: Leucine-enriched protein
Leucine-enriched protein + LC n-3 PUFAExperimentalJuice based supplement containing leucine-enriched protein and LC n-3 PUFA
Receives: Dietary Supplement: Leucine-enriched protein; Dietary Supplement: LC n-3 PUFA

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Appendicular skeletal muscle mass

    Assessed via dual energy x-ray absorptiometry

    Measured: 6 months

Secondary outcomes (6)
  1. Isometric knee extension strength

    Maximal voluntary contraction

    Measured: 6 months

  2. Physical performance

    Short physical performance battery, single leg stand, timed up and go

    Measured: 6 months

  3. Metabolomics

    Assessed using nuclear magnetic resonance (NMR) spectroscopy

    Measured: 6 months

  4. Transcriptomics

    Assessed via RNA Sequencing

    Measured: 6 months

  5. Thigh muscle mass

    Assessed in dominant leg via MRI in sub cohort (n=39)

    Measured: 6 months

  6. Muscle protein synthesis

    Measured as fractional synthetic rate (%/day) over a 3-d period at baseline and end of study

    Measured: 6 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted12 Feb 2018
  2. Study start1 Jun 2017
  3. Primary completion21 Dec 2018
  4. Study completion21 Dec 2018

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
108 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03429491
Sponsor's protocol ID
NUTRIMAL-3
Other IDs
14/F/822
Acronym
NUTRIMAL
Status last verified
Apr 2019
First submitted
3 Feb 2018
Last updated
18 Apr 2019
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Murphy CH, Flanagan EM, De Vito G, Susta D, Mitchelson KAJ, de Marco Castro E, Senden JMG, Goessens JPB, Miklosz A, Chabowski A, Segurado R, Corish CA, McCarthy SN, Egan B, van Loon LJC, Roche HM. Does supplementation with leucine-enriched protein alone and in combination with fish-oil-derived n-3 PUFA affect muscle mass, strength, physical performance, and muscle protein synthesis in well-nourished older adults? A randomized, double-blind, placebo-controlled trial. Am J Clin Nutr. 2021 Jun 1;113(6):1411-1427. doi: 10.1093/ajcn/nqaa449.

    PubMed 33871558

Questions about this trial

What is this clinical trial studying?

A study testing Leucine-enriched protein and LC n-3 PUFA in people with Sarcopenia, run by University College Dublin at 1 site in Ireland.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 17 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 18 Apr 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Ireland. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Appendicular skeletal muscle mass (time frame: 6 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03429491, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Apr 2019; AzTrials last refreshed its copy on 2 Nov 2026.

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