Nicotinamide Mononucleotide Supplementation for Exercise Tolerance Improvement in Healthy Older Adults
1 other identifier
interventional
40
1 country
1
Brief Summary
This is a randomized, double-blind, placebo-controlled, two-arm crossover clinical trial evaluating the effects of a patented age-reversal therapy, EGA®, compared to conventional nicotinamide mononucleotide (NMN) supplementation. The study will assess safety and efficacy in improving exercise tolerance and modulating biomarkers of aging in healthy older adults. The primary outcome is cycle ergometry constant work rate (CWR) exercise tolerance, measured as time to fatigue. Secondary outcomes include changes in peak oxygen consumption (VO₂peak), critical power, anaerobic work capacity, lactate threshold, and NAD⁺ metabolite levels. EGA® is composed of three metabolomic compounds that are endogenous to humans. The formulation has been used in prior exploratory studies and real-world applications, which have helped inform the design of this current trial.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Feb 2026
Shorter than P25 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
August 19, 2025
CompletedFirst Posted
Study publicly available on registry
August 27, 2025
CompletedStudy Start
First participant enrolled
February 21, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 30, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
January 1, 2027
February 20, 2026
February 1, 2026
10 months
August 19, 2025
February 19, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Time to Fatigue During Constant Work Rate Cycle Ergometry (tLIM).
Duration (in seconds) that participants can sustain a constant submaximal workload on a cycle ergometer until volitional fatigue. This is a validated surrogate for submaximal exercise tolerance.
Measured at the beginning and end of each 4-week intervention period.
Secondary Outcomes (5)
Peak Oxygen Uptake (VO2max)
Measured at the beginning and end of each 4-week intervention period.
Lactate Threshold
Measured at the beginning and end of each 4-week intervention period.
Anaerobic Work Capacity
Measured at the beginning and end of each 4-week intervention period.
Critical Power
Measured at the beginning and end of each 4-week intervention period.
Circulating NAD+ and Related Metabolites
Measured at the beginning and end of each 4-week intervention period.
Other Outcomes (4)
Adverse Events
From first dose through final study visit (up to 12 weeks per participant, including two 4-week intervention periods and a 4-week washout).
Adherence to Supplementation
Assessed weekly during each 4-week intervention period and at the end of each intervention period (Weeks 4 and 12), for a total study duration of up to 12 weeks per participant.
Exercise Session Adherence
Assessed weekly during each 4-week intervention period and summarized at the end of each period (Weeks 4 and 12); total study duration up to 12 weeks per participant.
- +1 more other outcomes
Study Arms (4)
Arm 1 - EGA -> Placebo
EXPERIMENTALParticipants receive EGA during Period 1, followed by Placebo during Period 2 after a washout. Assigned Interventions: EGA; Placebo.
Arm 2 - Placebo -> EGA
EXPERIMENTALParticipants receive Placebo during Period 1, followed by EGA during Period 2 after a washout. Assigned Interventions: Placebo; EGA.
Arm 3 - NMN -> Placebo
EXPERIMENTALParticipants receive Nicotinamide Mononucleotide (NMN) during Period 1, followed by Placebo during Period 2 after a washout. Assigned Interventions: NMN; Placebo.
Arm 4 - Placebo -> NMN
EXPERIMENTALParticipants receive Placebo during Period 1, followed by NMN during Period 2 after a washout. Assigned Interventions: Placebo; NMN.
Interventions
Conventional NMN supplement.
Organoleptically matched inert control.
Proprietary formulation containing NMN, betaine, and low-dose hydrogen peroxide.
Eligibility Criteria
You may qualify if:
- Adults aged 60 to 80 years, of any sex
- Written clearance from primary care physician confirming medical fitness to participate in an exercise-based clinical study
- Normal or near-normal cardiovascular function to safely engage in moderate to vigorous exercise, demonstrated by either: stress echocardiogram or coronary CT angiogram within the past 12 months showing normal left ventricular function, no significant valvular heart disease, no ischemic changes, and no other clinically significant abnormalities, plus confirmation that no new cardiovascular symptoms (e.g., chest pain, dyspnea, syncope) or changes in health status have occurred since testing
- Montreal Cognitive Assessment (MoCA) score of 26 or higher
- Free from acute or uncontrolled chronic medical conditions that would pose a risk or interfere with study participation
- Physically capable of engaging in structured exercise involving moderate to vigorous intensity stationary cycling
- Successful completion of a graded exercise test (e.g., stationary bike) without significant adverse events or contraindications
- Ability to attend at least four in-person laboratory visits in Beverly Hills, California
- Non-smoker for at least 12 months
- Able to provide informed consent and comply with study procedures
- Willing to refrain from initiating new exercise, dietary supplement, or medication regimens during the study
You may not qualify if:
- Severe cardiovascular disease (e.g., recent myocardial infarction \<6 months, unstable angina, uncontrolled hypertension \>160/100 mmHg)
- Severe respiratory conditions (e.g., advanced COPD or other conditions preventing exercise participation)
- Significant neurological impairments that hinder comprehension of instructions or participation in exercise
- Terminal illness or conditions limiting life expectancy or ability to complete the study
- Severe cognitive impairment preventing informed consent, protocol adherence, or comprehension of interventions
- Significant orthopedic limitations or injuries that prevent safe exercise participation
- Use of NMN, NR, or other NAD+-altering supplements within the past 14 weeks
- Anticipated or current alcohol consumption \>2 drinks per week, or unwillingness to abstain from alcohol during the study
- Current substance abuse affecting study participation or adherence
- Other acute or chronic health conditions judged by the investigators to pose risk or interfere with study objectives
- Non-compliance with study requirements, withdrawal of informed consent, or unforeseen circumstances compromising completion
- Any condition which, in the opinion of the investigator, would interfere with study participation or interpretation of results
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Scott Silveiralead
- Concordia University Chicagocollaborator
Study Sites (1)
Medical Office of Dr. Robert Huizenga MD
Beverly Hills, California, 90210, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- BASIC SCIENCE
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR INVESTIGATOR
- PI Title
- Principle Investigator
Study Record Dates
First Submitted
August 19, 2025
First Posted
August 27, 2025
Study Start
February 21, 2026
Primary Completion (Estimated)
December 30, 2026
Study Completion (Estimated)
January 1, 2027
Last Updated
February 20, 2026
Record last verified: 2026-02
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF
- Time Frame
- IPD and supporting information will be available within 12 months of publication of the primary results and will remain available for 5 years thereafter.
- Access Criteria
- Data will be made available to qualified researchers upon submission of a methodologically sound research proposal. Requests should be directed to the Principal Investigator, and access will be granted after review and approval by the study steering committee. Data will be shared under a data use agreement to ensure participant confidentiality.
De-identified individual participant data (IPD) underlying the primary and secondary outcome results reported in this study will be shared. This includes data related to exercise testing outcomes (tLIM, VO2max, lactate threshold, anaerobic work capacity, critical power) and metabolomics (circulating NAD+ and related metabolites). Demographic and baseline characteristics will also be included in de-identified form.