Trial Outcomes & Findings for Trial of Oral Glutamine on Mitochondrial Function in CKD (NCT NCT02838979)

NCT ID: NCT02838979

Last Updated: 2022-07-14

Results Overview

31P MRS/OS was used to measure mitochondrial phosphorylation capacity (ATPmax).

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

11 participants

Primary outcome timeframe

2 weeks

Results posted on

2022-07-14

Participant Flow

Participant milestones

Participant milestones
Measure
Oral L-Glutamine First, Then Maltodestrin
Subjects will receive 0.4 g/kg/day of L-glutamine (Nutrestore, EMMAUS Life Sciences, Inc Torrance, CA) in three divided daily doses. Duration 2 weeks L-glutamine: Oral Glutamine for 2 weeks at dose of 0.4mg/kg/day in three divided daily doses
Maltodextrin First, Then L-glutamine
Identical appearing maltodextrin powder. Maltodextrin: Oral maltodextrin as described for the active agent: 2 weeks at dose of 0.4mg/kg/day in three divided daily doses.
Overall Study
STARTED
6
5
Overall Study
COMPLETED
6
5
Overall Study
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Trial of Oral Glutamine on Mitochondrial Function in CKD

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
L-Glutamine First, Then Maltodextrin
n=6 Participants
Subjects will first receive 0.4 g/kg/day of L-glutamine (Nutrestore, EMMAUS Life Sciences, Inc Torrance, CA) first, then crossover taking Maltodextrin.
Maltodextrin First, Then L-glutamine
n=5 Participants
Subjects will first receive Identical appearing maltodextrin powder first, then crossover to taking L-glutamine.
Total
n=11 Participants
Total of all reporting groups
Age, Continuous
57 years
STANDARD_DEVIATION 16.6 • n=5 Participants
58 years
STANDARD_DEVIATION 9.8 • n=7 Participants
58 years
STANDARD_DEVIATION 13.3 • n=5 Participants
Sex: Female, Male
Female
4 Participants
n=5 Participants
1 Participants
n=7 Participants
5 Participants
n=5 Participants
Sex: Female, Male
Male
2 Participants
n=5 Participants
4 Participants
n=7 Participants
6 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
6 Participants
n=5 Participants
5 Participants
n=7 Participants
11 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
1 Participants
n=5 Participants
2 Participants
n=7 Participants
3 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
White
5 Participants
n=5 Participants
3 Participants
n=7 Participants
8 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Region of Enrollment
United States
6 participants
n=5 Participants
5 participants
n=7 Participants
11 participants
n=5 Participants

PRIMARY outcome

Timeframe: 2 weeks

31P MRS/OS was used to measure mitochondrial phosphorylation capacity (ATPmax).

Outcome measures

Outcome measures
Measure
L-Glutamine
n=11 Participants
L-glutamine: Oral Glutamine for 2 weeks at dose of 0.4mg/kg/day in three divided daily doses
Maltodextrin
n=11 Participants
Identical appearing maltodextrin powder. Maltodextrin: Oral maltodextrin as described for the active agent: 2 weeks at dose of 0.4mg/kg/day in three divided daily doses.
Muscle Mitochondrial Function
0.88 mM ATP/s
Standard Deviation 0.30
0.90 mM ATP/s
Standard Deviation 0.34

SECONDARY outcome

Timeframe: 2 weeks

To test if glutamine improves objective isometric muscle fatigue by comparing the measurement of FTI from each arm. Muscle fatigability was tested by calculating FTI as the area under the force-time curve during isometric force generated at 70 % of maximal voluntary contraction (MVC),

Outcome measures

Outcome measures
Measure
L-Glutamine
n=11 Participants
L-glutamine: Oral Glutamine for 2 weeks at dose of 0.4mg/kg/day in three divided daily doses
Maltodextrin
n=11 Participants
Identical appearing maltodextrin powder. Maltodextrin: Oral maltodextrin as described for the active agent: 2 weeks at dose of 0.4mg/kg/day in three divided daily doses.
Change in Force-time Integral Area Under the Curve in Active Agent vs. Placebo
58.87 N*s
Standard Deviation 24.07
52.36 N*s
Standard Deviation 21.22

SECONDARY outcome

Timeframe: 2 weeks

To test the effect of glutamine supplementation on muscle endurance, sum of the muscle force (force-time integral, FTI, N\*s) normalized to maximum voluntary contraction (MVC, N) generated during voluntary contraction.

Outcome measures

Outcome measures
Measure
L-Glutamine
n=11 Participants
L-glutamine: Oral Glutamine for 2 weeks at dose of 0.4mg/kg/day in three divided daily doses
Maltodextrin
n=11 Participants
Identical appearing maltodextrin powder. Maltodextrin: Oral maltodextrin as described for the active agent: 2 weeks at dose of 0.4mg/kg/day in three divided daily doses.
Muscle Fatigue
2.52 s-1
Standard Deviation 1.09
2.41 s-1
Standard Deviation 1.03

OTHER_PRE_SPECIFIED outcome

Timeframe: 2 weeks

To test if glutamine improves plasma NAD+ compared to placebo. Plasma NAD+ concentrations were quantified in mM using 31p MRS based in vivo assay.

Outcome measures

Outcome measures
Measure
L-Glutamine
n=11 Participants
L-glutamine: Oral Glutamine for 2 weeks at dose of 0.4mg/kg/day in three divided daily doses
Maltodextrin
n=11 Participants
Identical appearing maltodextrin powder. Maltodextrin: Oral maltodextrin as described for the active agent: 2 weeks at dose of 0.4mg/kg/day in three divided daily doses.
Plasma NAD+ Levels
0.95 mM
Standard Deviation 0.25
0.98 mM
Standard Deviation 0.19

POST_HOC outcome

Timeframe: 2 weeks

To test if glutamine improves maximal voluntary contraction compared to placebo. Maximum voluntary contraction (MVC) was determined by the isometric force generated using first dorsal interosseous (FDI) muscle against a force transducer.

Outcome measures

Outcome measures
Measure
L-Glutamine
n=11 Participants
L-glutamine: Oral Glutamine for 2 weeks at dose of 0.4mg/kg/day in three divided daily doses
Maltodextrin
n=11 Participants
Identical appearing maltodextrin powder. Maltodextrin: Oral maltodextrin as described for the active agent: 2 weeks at dose of 0.4mg/kg/day in three divided daily doses.
Maximal Voluntary Contraction
23.6 N/m
Standard Deviation 6.834
23.22 N/m
Standard Deviation 8.967

Adverse Events

L-Glutamine

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Maltodextrin

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Ernest Ayers

University of Washington

Phone: 206-685-1423

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place