The Effects of Protein Supplementation With or Without Urolithin A During Single-leg Immobilization
Comparison of High-protein Formulation With/Without Urolithin a During a Unilateral Knee Immobilization: a Pilot Proof-of-concept Trial
2 other identifiers
interventional
24
1 country
1
Brief Summary
There are times in life when people cannot use their muscles, such as during illness or injury. Muscle and mitochondria (the 'energy factory' in cells) health decline very quickly when people cannot use their muscles, but certain foods can help reduce these declines. Recent research suggests that Urolithin A, which is a natural compound that can be produced after eating pomegranates, nuts, and berries, improves muscle health. In this study, the investigators aim to investigate if a protein beverage (standard care during disuse) with or without Urolithin A can reduce or prevent the loss of muscle health while wearing a knee brace (muscle disuse).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable healthy
Started Jun 2023
Typical duration for not_applicable healthy
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
March 10, 2023
CompletedFirst Posted
Study publicly available on registry
April 18, 2023
CompletedStudy Start
First participant enrolled
June 1, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 31, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
April 30, 2025
CompletedOctober 2, 2024
October 1, 2024
1 year
March 10, 2023
October 1, 2024
Conditions
Outcome Measures
Primary Outcomes (1)
Change in maximal mitochondrial respiration (rate of oxygen flux) and mitochondrial ADP [adenosine diphosphate] sensitivity (Oroboros O2k)
Oxygen flux in muscle measured using Oroboros
Outcome measured and reported for: Day 7, Day 14, Day 28, Day 35
Secondary Outcomes (3)
Muscle strength (Biodex)
Day 7, Day 14, Day 28, Day 35
Quadriceps muscle size
Outcome measured and reported for: Day 14, Day 28, Day 35
Muscle protein fractional synthetic rate
Day 7, Day 14, Day 28, Day 35; integrated synthesis rates reported for Day 7-14, Day 14-28; Day 28-35
Study Arms (2)
Protein supplement
ACTIVE COMPARATORProtein supplement with Urolithin A
EXPERIMENTALInterventions
Ready-to-drink protein beverage consumed once daily for 28 days
Ready-to-drink protein beverage with 1000 mg of Urolithin A consumed once daily for 28 days
Eligibility Criteria
You may qualify if:
- Men aged 18-30 years
- Healthy, non-smoking
- BMI between 20 and 30 kg/m\^2
- No orthopedic issues that would preclude participation in the knee bracing protocol
- Not taking any medication or with any medical condition that, in the opinion of the investigators, would compromise the study outcome or the safety of the research participant
- Provide informed consent
- Understand COVID-19 risks and procedures for in person research and sign Information Letter: COVID-19 Risks and Procedures for In-Person Research at McMaster University
You may not qualify if:
- Subject has any concurrent medical, orthopedic, or psychiatric requirements that, in the opinion of the investigators, would compromise their ability to comply with the study requirements
- Clinically significant abnormal laboratory results at screening
- Participation in a clinical research trial within 30 days before randomization
- Allergy or sensitivity to study ingredients
- Individuals who are cognitively impaired and/or who are unable to give informed consent
- Any other condition that, in the opinion of the investigators, may adversely affect the subject's ability to complete the study or its measures or may pose a significant risk to the subject
- Any cachexia-related condition or any genetic muscle diseases or disorders
- Current gastrointestinal condition that could interfere with the study (e.g., IBS/IBD \[irritable bowel syndrome/inflammatory bowel disease\], diarrhea, acid reflux disease, dysphagia, etc.)
- Excessive alcohol consumption (\>21 units/week) and/or a smoker (cigarettes or vaping)
- Concomitant use of corticosteroids, antibiotics, any anabolic steroid, creatine, whey protein supplements, casein, branched-chain amino acids (BCAAs) or any other NHP \[Natural Health Product\], medication or supplement used for muscle strengthening/building within 45 days prior to screening
- Contraindications to an MRI scan (metal implants, metal-based ink tattoo)
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
McMaster University
Hamilton, Ontario, Canada
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Stuart Phillips
McMaster University
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- BASIC SCIENCE
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor
Study Record Dates
First Submitted
March 10, 2023
First Posted
April 18, 2023
Study Start
June 1, 2023
Primary Completion
May 31, 2024
Study Completion
April 30, 2025
Last Updated
October 2, 2024
Record last verified: 2024-10
Data Sharing
- IPD Sharing
- Will not share