NCT03310034

Brief Summary

This research project aims to determine whether supplementing with a mixture of the NAD+-precursors NA, NAM, and tryptophan can stimulate skeletal muscle mitochondrial function in physically compromised, elderly humans. Outcomes are related to mitochondrial function, energy metabolism, and physical function will be investigated.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
14

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Nov 2017

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
terminated

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

October 10, 2017

Completed
6 days until next milestone

First Posted

Study publicly available on registry

October 16, 2017

Completed
16 days until next milestone

Study Start

First participant enrolled

November 1, 2017

Completed
2.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 6, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 6, 2020

Completed
Last Updated

August 20, 2020

Status Verified

March 1, 2020

Enrollment Period

2.3 years

First QC Date

October 10, 2017

Last Update Submit

August 18, 2020

Conditions

Outcome Measures

Primary Outcomes (4)

  • Ex vivo mitochondrial respiration

    Ex vivo mitochondrial function in skeletal muscle measured by oxygen consumption in muscle fibres (muscle biopsy vastus lateralis) on lipid-derived and carbohydrate-derived substrates.

    After 4 weeks of supplementation.

  • Basal metabolic rate

    Basal metabolic rate expressed as kcal/kg/min

    After 4 weeks of supplementation.

  • In vivo mitochondrial capacity

    In vivo mitochondrial capacity measured with 31P-MRS.

    After 4 weeks of supplementation.

  • Submaximal exercise energy expenditure

    Submaximal exercise energy expenditure expressed as kcal/kg/min

    After 4 weeks of supplementation.

Secondary Outcomes (4)

  • Glucose tolerance

    After 4 weeks of supplementation.

  • Ectopic lipid accumulation

    After 4 weeks of supplementation.

  • Acetylcarnitine levels

    After 4 weeks of supplementation.

  • Physical function

    After 4 weeks of supplementation.

Study Arms (2)

Intervention

ACTIVE COMPARATOR
Dietary Supplement: NAD-precursors

Control

PLACEBO COMPARATOR
Dietary Supplement: Control

Interventions

NAD-precursorsDIETARY_SUPPLEMENT

Intervention product containing the NAD+-precursors nicotinic acid, nicotinamide, and tryptophan (total of 204 NE per serving) in a whey protein source for 31 days.

Intervention
ControlDIETARY_SUPPLEMENT

Control product containing amino-acid mixture resembling whey-protein not containing the NAD+-precursors nicotinic acid, nicotinamide, and tryptophan. To be taken for 31 days.

Control

Eligibility Criteria

Age65 Years - 75 Years
Sexall
Healthy VolunteersYes
Age GroupsOlder Adult (65+)

You may qualify if:

  • Males and females
  • Age ≥ 65 ≤ 75 years;
  • BMI ≥ 20 kg/m2 ≤ 30 kg/m2;
  • Normal physical activity levels: maximum of 1 hour per week engagement in a structured exercise session;
  • SPPB score 4-9 and (pre-)frail;
  • Subject should be in sufficient health to participate in the experiments, to be judged by the responsible physician based on the subject's medical history.

You may not qualify if:

  • Smoking;
  • Excessive alcohol use and/or drug abuse;
  • Subjects with diabetes mellitus type 2;
  • Significant food allergies or intolerances concerning the study products;
  • Participation in another biomedical study within 1 month before the first study visit, possibly interfering with the study results;
  • Medication use known to hamper subject's safety during the study procedures;
  • Subjects who use selective serotonin re-uptake inhibitors (SSRI), or selective norepinephrin re-uptake inhibitors (SNRI), or monoamino oxidase inhibitors (MAO-inhibitors), or clomipramine, or St. John's wort (Hypericum perforatum);
  • Subjects with contra-indications for MRI;
  • Subjects who do not want to be informed about unexpected medical findings;
  • Subjects who do not want that their treating physician to be informed;
  • Co-morbidities to which the intervention or program the may pose as a complicating factor;
  • Inability to participate and/or complete the required measurements.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Maastricht University

Maastricht, Limburg, 6229ER, Netherlands

Location

Related Publications (1)

  • Connell NJ, Grevendonk L, Fealy CE, Moonen-Kornips E, Bruls YMH, Schrauwen-Hinderling VB, de Vogel J, Hageman R, Geurts J, Zapata-Perez R, Houtkooper RH, Havekes B, Hoeks J, Schrauwen P. NAD+-Precursor Supplementation With L-Tryptophan, Nicotinic Acid, and Nicotinamide Does Not Affect Mitochondrial Function or Skeletal Muscle Function in Physically Compromised Older Adults. J Nutr. 2021 Oct 1;151(10):2917-2931. doi: 10.1093/jn/nxab193.

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
BASIC SCIENCE
Intervention Model
CROSSOVER
Model Details: Randomized, dubbel-blind, cross-over trial
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Prof. Dr. P. Schrauwen

Study Record Dates

First Submitted

October 10, 2017

First Posted

October 16, 2017

Study Start

November 1, 2017

Primary Completion

March 6, 2020

Study Completion

March 6, 2020

Last Updated

August 20, 2020

Record last verified: 2020-03

Data Sharing

IPD Sharing
Will not share

Locations