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Evaluation of the Effect of a Seaweed Flour- and Leucine-Enriched Food on Metabolic and Inflammatory Status in Older Adults With Probable Sarcopenia or Sarcopenia

1 lipca 2026 zaktualizowane przez: María Salomé Mariotti Celis, Finis Terrae University

Evaluation of the Effect of a Seaweed Flour- and Leucine-Enriched Food on Metabolic and Inflammatory Status in Older Adults With Probable Sarcopenia or Sarcopenia: A Prospective, Controlled, Randomized, Double-Blind, Three-Arm Parallel Clinical Trial

Sarcopenia and probable sarcopenia are associated with loss of muscle strength, functional impairment, frailty, and an increased risk of adverse outcomes in older adults. In short-term interventions, structural or functional changes may be modest, whereas certain serum biomarkers of metabolic-nutritional response may be more sensitive. In this protocol version, serum transthyretin (TTR) has been selected as the primary outcome, without assuming that it represents, by itself, a direct measure of muscle mass or overall clinical efficacy.

Przegląd badań

Status

Jeszcze nie rekrutacja

Warunki

Interwencja / Leczenie

Szczegółowy opis

Sarcopenia is a progressive skeletal muscle disorder associated with aging and an increased risk of disability, hospitalization, dependency, and mortality. Contemporary consensus definitions identify low muscle strength as the primary characteristic of the condition, while muscle quantity or quality and physical performance are used to support the diagnosis and determine its severity.

In older adults, anabolic resistance reduces the muscle's responsiveness to habitual dietary protein intake. Leucine has been proposed as an amino acid capable of stimulating key anabolic pathways and therefore represents a plausible candidate for short-term nutritional interventions. In turn, Durvillaea incurvata flour provides bioactive compounds and dietary fiber with potential antioxidant and anti-inflammatory properties, although clinical evidence supporting its use in sarcopenia remains limited.

From a methodological perspective, a 28-day follow-up period may be sufficient to detect early metabolic and nutritional responses, but it may be insufficient to demonstrate robust clinical changes in muscle strength, muscle mass, or physical performance. For this reason, serum TTR has been selected as the primary short-term response outcome in the present protocol.

The selection of serum TTR as the primary outcome requires careful interpretation. Serum TTR levels may be influenced by protein-energy intake, liver function, inflammatory status, and intercurrent clinical conditions. Accordingly, in this protocol, serum TTR will not be interpreted as a direct surrogate of muscle mass or as a stand-alone measure of clinical efficacy. Rather, it will be considered a serum marker of early metabolic and nutritional response, whose interpretation will be complemented by functional, body composition, inflammatory, and safety-related outcomes.

This study is therefore designed as an exploratory, randomized proof-of-concept trial to determine whether the combination of leucine and seaweed flour improves serum TTR and whether this response is accompanied by consistent secondary changes in muscle strength, mobility, body composition, and the metabolic-inflammatory profile.

Typ studiów

Interwencyjne

Zapisy (Szacowany)

102

Faza

  • Nie dotyczy

Kontakty i lokalizacje

Ta sekcja zawiera dane kontaktowe osób prowadzących badanie oraz informacje o tym, gdzie badanie jest przeprowadzane.

Kontakt w sprawie studiów

  • Nazwa: María S Mariotti Celis, Ph D
  • Numer telefonu: +56 9 82332421
  • E-mail: mmariotti@uft.cl

Lokalizacje studiów

  • Chile
      • Santiago, Chile, 8010000
        • Universidad Finis Terrae
        • Kontakt:
          • Cristian R Encina Acosta, Ph D
          • Numer telefonu: +56 9 62240100
          • E-mail: cencinaa@uft.edu
        • Kontakt:
          • Conrado S Camilo Manriquez
          • Numer telefonu: +56 9 77508471
          • E-mail: ccamilo@uft.cl

Kryteria uczestnictwa

Badacze szukają osób, które pasują do określonego opisu, zwanego kryteriami kwalifikacyjnymi. Niektóre przykłady tych kryteriów to ogólny stan zdrowia danej osoby lub wcześniejsze leczenie.

Kryteria kwalifikacji

Wiek uprawniający do nauki

  • Dorosły
  • Starszy dorosły

Akceptuje zdrowych ochotników

Nie

Opis

Inclusion Criteria

  • Age between 60 and 80 years at the time of enrollment.
  • Ability to understand the study procedures and provide written informed consent.
  • SARC-F score ≥4 during screening.
  • Reduced muscle strength defined as handgrip strength <27 kg in men or <16 kg in women; alternatively, a time >15 seconds on the five-repetition chair stand test when handgrip dynamometry cannot be validly performed or is contraindicated.
  • Availability to attend study visits and comply with daily consumption of the study product for 28 days.
  • Willingness to provide fasting blood samples at the Day 0 and Day 28 visits. Exclusion Criteria
  • Cognitive impairment according to the abbreviated Mini-Mental State Examination (MMSE), using the operational cutoff approved for the study (≤13 points).
  • Clinically significant chronic liver disease, clinically significant chronic kidney disease, nephrotic syndrome, active cancer or recent oncological treatment, or any condition that may substantially affect serum TTR levels or increase participant risk.
  • Acute infection, acute inflammatory condition, or clinical decompensation at baseline that may interfere with the interpretation of serum TTR measurements.
  • Uncontrolled diabetes mellitus or any metabolic condition that, in the investigator's judgment, may increase the risks associated with the intervention.
  • Food allergy or intolerance to any component of the study product, including gluten, egg, milk, or other specific cake ingredients.
  • Use of leucine, HMB, or protein supplements within the previous 3 months.
  • Chronic use of systemic corticosteroids, immunosuppressive agents, or other therapies that may significantly alter the metabolic response under study.
  • Untreated thyroid disease or any other unstable endocrine disorder.
  • Clinically significant edema, severe dehydration, or any condition that may compromise the validity of bioelectrical impedance measurements.
  • Any medical, functional, social, or cognitive condition that may limit safe participation or adherence to the study protocol.

Plan studiów

Ta sekcja zawiera szczegółowe informacje na temat planu badania, w tym sposób zaprojektowania badania i jego pomiary.

Jak projektuje się badanie?

Szczegóły projektu

  • Główny cel: Inny
  • Przydział: Randomizowane
  • Model interwencyjny: Przydział równoległy
  • Maskowanie: Potroić

Broń i interwencje

Grupa uczestników / Arm
Interwencja / Leczenie
Komparator placebo: Control chocolate cake
One daily serving of standard chocolate-flavored cake without added leucine or seaweed flour for 28 consecutive days
Suplement diety: Standard chocolate-flavored cake
Participants will consume one standard chocolate-flavored cake serving daily for 28 days, without added leucine or seaweed flour.
Inne nazwy:
  • Cake
Aktywny komparator: Leucine-enriched chocolate cake
One daily serving of standard chocolate-flavored cake supplemented with 3 g of leucine for 28 consecutive days
Suplement diety: Leucine-Enriched Chocolate Cake
Participants will consume one chocolate-flavored cake serving supplemented with 3 g of leucine daily for 28 days.
Inne nazwy:
  • Leucin
Eksperymentalny: Leucine and Durvillaea incurvata Flour-Enriched Chocolate Cake
One daily serving of standard chocolate-flavored cake supplemented with 3 g of leucine and 3 g of Durvillaea incurvata flour for 28 consecutive days.
Suplement diety: Leucine Plus Seaweed Flour-Enriched Chocolate Cake
Participants will consume one chocolate-flavored cake serving supplemented with 3 g of leucine and 3 g of Durvillaea incurvata flour daily for 28 days.
Inne nazwy:
  • Seaweed

Co mierzy badanie?

Podstawowe miary wyniku

Miara wyniku
Opis środka
Ramy czasowe
Change from baseline in fasting serum transthyretin concentration at day 28.
Ramy czasowe: 28 days
Fasting serum transthyretin (TTR; prealbumin) concentration (mg/dL) measured using Human Transthyretin/Prealbumin ELISA Kit (NBP2-60516, Bio-Techne, Novus Biologicals). The outcome is the change from Day 0 to Day 28 according to the Statistical Analysis Plan.
28 days

Miary wyników drugorzędnych

Miara wyniku
Opis środka
Ramy czasowe
Change from baseline in handgrip strength at day 28.
Ramy czasowe: 28 days
Handgrip strength (kg) measured by dynamometry under standardized conditions. The operational measure, such as the best of three valid attempts.
28 days
Change from baseline in 4-meter gait speed at day 28.
Ramy czasowe: 28 days
Usual gain speed (m/s) calculated from the 4-meter walk test under standardized condition.
28 days
Change from baseline in appendicular muscle mass index at day 28.
Ramy czasowe: 28 days
Appendicular skeletal muscle mass index (kg/m2) measured calculated as appendicular skeletal muscle mass divided by height squared
28 days
Percentage (%) of prescribed study product serving consumed during the intervention.
Ramy czasowe: 28 days
Adherence calculated from returned product counts and participant self-report as number of consumed servings divided by the number of prescribed servings.
28 days
Number of participants with adequate adherence during the intervention.
Ramy czasowe: 28 days
Participants who consume at least 80% of prescribed study product serving during the 28-day intervention.
28 days

Inne miary wyników

Miara wyniku
Opis środka
Ramy czasowe
Number of participants with any adverse event.
Ramy czasowe: 28 days
Number of participants with at least one adverse event recorded from through the day 28 visit, regardless of relationship to the intervention.
28 days
Number of participants with serious adverse events.
Ramy czasowe: 28 days
Number of participants with at least one serious adverse event, as defined by applicable ethical and regulatory criteria
28 days
Number of participants with treatment-related adverse events
Ramy czasowe: 28 days
Number of participants with at least one adverse event assessed by the investigator as possibly, probably, or definitely related to the assigned study product.
28 days
Number of participants with gastrointestinal intolerance symptoms.
Ramy czasowe: 28 days
Number of participants reporting gastrointestinal symptoms such as nausea, abdominal pain, bloating, diarrhea, constipation, vomiting, or other symptoms recorded in the tolerability form.
28 days
Number of participants who discontinue the study product due to an adverse event.
Ramy czasowe: 28 days
Number of participants who permanently stop consuming the assigned study product because of an adverse event.
28 days
Change from baseline in serum TNF-alpha concentration at day 28.
Ramy czasowe: 28 days
Fasting serum TNF-alpha concentration (pg/mL) measured using Human TNF-alpha ELISA Kit.
28 days
Change from baseline in serum OX-SR1 concentration
Ramy czasowe: 28 days
Fasting serum OX-SR1 concentration (pg/mL) measured using Human Oxidative Stress Responsive (OXSR1) ELISA Kit
28 days
Change from baseline in fasting insulin concentration at day 28.
Ramy czasowe: 28 days
Fasting serum insulin (uUI/mL) measure using the validated assay.
28 days
Change from baseline in total cholesterol concentration at day 28
Ramy czasowe: 28 days
Fasting serum total cholesterol concentration (mg/dL) measured using the laboratory method.
28 days
Change from baseline in LDL cholesterol concentration at day 28.
Ramy czasowe: 28 days
Fasting serum LDL cholesterol concentration (mg/dL) measured using the laboratory method.
28 days
Change from baseline in HDL cholesterol concentration at day 28.
Ramy czasowe: 28 days
Fasting serum HDL cholesterol concentration (mg/dL) measured using the laboratory method.
28 days
Change from baseline in triglyceride concentration at day 28.
Ramy czasowe: 28 days
Fasting serum triglyceride concentration (mg/dL) measured using the laboratory method.
28 days
Change from baseline in serum glucose concentration at day 28.
Ramy czasowe: 28 days
Fasting serum glucose concentration (mg/dL) measured using the laboratory method
28 days
Change from baseline in serum total protein concentration at day 28.
Ramy czasowe: 28 days
Fasting serum total protein concentration (mg/dL) measured using the laboratory method.
28 days
Change from baseline in serum total bilirubin concentration at day 28.
Ramy czasowe: 28 days
Fasting serum total bilirubin concentration (U/L) measured using the laboratory method.
28 days
Change from baseline in serum albumin concentration at day 28.
Ramy czasowe: 28 days
Fasting serum albumin concentration (g/dL) measured using the laboratory method.
28 days
Change from baseline in serum globulin concentration at day 28.
Ramy czasowe: 28 days
Fasting serum globulin concentration (g/dL) measured using the laboratory method.
28 days

Współpracownicy i badacze

Tutaj znajdziesz osoby i organizacje zaangażowane w to badanie.

Sponsor

Finis Terrae University

Publikacje i pomocne linki

Osoba odpowiedzialna za wprowadzenie informacji o badaniu dobrowolnie udostępnia te publikacje. Mogą one dotyczyć wszystkiego, co jest związane z badaniem.

Publikacje ogólne

Daty zapisu na studia

Daty te śledzą postęp w przesyłaniu rekordów badań i podsumowań wyników do ClinicalTrials.gov. Zapisy badań i zgłoszone wyniki są przeglądane przez National Library of Medicine (NLM), aby upewnić się, że spełniają określone standardy kontroli jakości, zanim zostaną opublikowane na publicznej stronie internetowej.

Główne daty studiów

Rozpoczęcie studiów (Szacowany)

1 sierpnia 2026

Zakończenie podstawowe (Szacowany)

1 października 2026

Ukończenie studiów (Szacowany)

1 marca 2027

Daty rejestracji na studia

Pierwszy przesłany

18 czerwca 2026

Pierwszy przesłany, który spełnia kryteria kontroli jakości

1 lipca 2026

Pierwszy wysłany (Rzeczywisty)

8 lipca 2026

Aktualizacje rekordów badań

Ostatnia wysłana aktualizacja (Rzeczywisty)

8 lipca 2026

Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości

1 lipca 2026

Ostatnia weryfikacja

1 lipca 2026

Więcej informacji

Terminy związane z tym badaniem

Słowa kluczowe

Dodatkowe istotne warunki MeSH

Inne numery identyfikacyjne badania

  • 25-124

Plan dla danych uczestnika indywidualnego (IPD)

Planujesz udostępniać dane poszczególnych uczestników (IPD)?

NIE

Informacje o lekach i urządzeniach, dokumenty badawcze

Bada produkt leczniczy regulowany przez amerykańską FDA

Nie

Bada produkt urządzenia regulowany przez amerykańską FDA

Nie

Te informacje zostały pobrane bezpośrednio ze strony internetowej clinicaltrials.gov bez żadnych zmian. Jeśli chcesz zmienić, usunąć lub zaktualizować dane swojego badania, skontaktuj się z register@clinicaltrials.gov. Gdy tylko zmiana zostanie wprowadzona na stronie clinicaltrials.gov, zostanie ona automatycznie zaktualizowana również na naszej stronie internetowej .

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