Trial Outcomes & Findings for Role of Glutamine as Myocardial Protector in Elective On-Pump CABG Surgery With Low EF (NCT NCT04560309)

NCT ID: NCT04560309

Last Updated: 2023-11-13

Results Overview

Plasma troponin I were measured using enzyme immunoassay (ELISA) in unit of ng/mL

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

60 participants

Primary outcome timeframe

Before induction to anesthesia

Results posted on

2023-11-13

Participant Flow

Participants were recruited based on inclusion criteria. This study was carried out at National Cardiovascular Center Harapan Kita. Written informed consent was obtained from all eligible patients. This study was conducted from January to October 2021.

Sixty patients with a left ventricle EF of 31-50% who underwent on-pump CABG were included in this study and randomized to treatment. Two patients were dropped out in this study

Participant milestones

Participant milestones
Measure
Glutamine
Intravenous L-alanyl-L-glutamine 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide: Intravenous infusion of 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide diluted in normal saline to volume of 500 mL, started after induction of anesthesia for 24 hours.
Control
Intravenous NaCl 0.9% Placebo: Intravenous infusion of 500 mL normal saline, started after induction of anesthesia for 24 hours.
Overall Study
STARTED
30
30
Overall Study
COMPLETED
29
29
Overall Study
NOT COMPLETED
1
1

Reasons for withdrawal

Reasons for withdrawal
Measure
Glutamine
Intravenous L-alanyl-L-glutamine 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide: Intravenous infusion of 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide diluted in normal saline to volume of 500 mL, started after induction of anesthesia for 24 hours.
Control
Intravenous NaCl 0.9% Placebo: Intravenous infusion of 500 mL normal saline, started after induction of anesthesia for 24 hours.
Overall Study
Meet drop out criteria
1
1

Baseline Characteristics

Race and Ethnicity were not collected from any participant.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Glutamine
n=29 Participants
Intravenous L-alanyl-L-glutamine 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide: Intravenous infusion of 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide diluted in normal saline to volume of 500 mL, started after induction of anesthesia for 24 hours.
Control
n=29 Participants
Intravenous NaCl 0.9% Placebo: Intravenous infusion of 500 mL normal saline, started after induction of anesthesia for 24 hours.
Total
n=58 Participants
Total of all reporting groups
Age, Continuous
60.21 years
STANDARD_DEVIATION 7.29 • n=29 Participants
61.31 years
STANDARD_DEVIATION 6.48 • n=29 Participants
60.76 years
STANDARD_DEVIATION 6.85 • n=58 Participants
Sex: Female, Male
Female
3 Participants
n=29 Participants
1 Participants
n=29 Participants
4 Participants
n=58 Participants
Sex: Female, Male
Male
26 Participants
n=29 Participants
28 Participants
n=29 Participants
54 Participants
n=58 Participants
Race and Ethnicity Not Collected
0 Participants
Race and Ethnicity were not collected from any participant.
Body Mass Index
26.25 kg/m^2
STANDARD_DEVIATION 2.53 • n=29 Participants
26.47 kg/m^2
STANDARD_DEVIATION 2.85 • n=29 Participants
26.36 kg/m^2
STANDARD_DEVIATION 2.67 • n=58 Participants
Pre-op Ejection Fraction
41.44 percent
n=29 Participants
44.00 percent
n=29 Participants
43.00 percent
n=58 Participants

PRIMARY outcome

Timeframe: Before induction to anesthesia

Plasma troponin I were measured using enzyme immunoassay (ELISA) in unit of ng/mL

Outcome measures

Outcome measures
Measure
Glutamine
n=29 Participants
Intravenous L-alanyl-L-glutamine 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide: Intravenous infusion of 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide diluted in normal saline to volume of 500 mL, started after induction of anesthesia for 24 hours.
Control
n=29 Participants
Intravenous NaCl 0.9% Placebo: Intravenous infusion of 500 mL normal saline, started after induction of anesthesia for 24 hours.
Plasma Troponin I at Baseline
0.42 ng/mL
Interval 0.0 to 27.0
0.17 ng/mL
Interval 0.0 to 1.98

PRIMARY outcome

Timeframe: 5 minute after cardiopulmonary bypass

Plasma troponin I were measured using enzyme immunoassay (ELISA) in unit of ng/mL

Outcome measures

Outcome measures
Measure
Glutamine
n=29 Participants
Intravenous L-alanyl-L-glutamine 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide: Intravenous infusion of 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide diluted in normal saline to volume of 500 mL, started after induction of anesthesia for 24 hours.
Control
n=29 Participants
Intravenous NaCl 0.9% Placebo: Intravenous infusion of 500 mL normal saline, started after induction of anesthesia for 24 hours.
Plasma Troponin I at 5 Minute After Cardiopulmonary Bypass
1.72 ng/mL
Standard Deviation 0.98
1.68 ng/mL
Standard Deviation 1.10

PRIMARY outcome

Timeframe: 6 hour after cardiopulmonary bypass

Plasma troponin I were measured using enzyme immunoassay (ELISA) in unit of ng/mL

Outcome measures

Outcome measures
Measure
Glutamine
n=29 Participants
Intravenous L-alanyl-L-glutamine 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide: Intravenous infusion of 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide diluted in normal saline to volume of 500 mL, started after induction of anesthesia for 24 hours.
Control
n=29 Participants
Intravenous NaCl 0.9% Placebo: Intravenous infusion of 500 mL normal saline, started after induction of anesthesia for 24 hours.
Plasma Troponin I at 6 Hour After Cardiopulmonary Bypass
3.43 ng/mL
Standard Deviation 1.51
4.41 ng/mL
Standard Deviation 1.89

PRIMARY outcome

Timeframe: 24 hour after cardiopulmonary bypass

Plasma troponin I were measured using enzyme immunoassay (ELISA) in unit of ng/mL

Outcome measures

Outcome measures
Measure
Glutamine
n=29 Participants
Intravenous L-alanyl-L-glutamine 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide: Intravenous infusion of 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide diluted in normal saline to volume of 500 mL, started after induction of anesthesia for 24 hours.
Control
n=29 Participants
Intravenous NaCl 0.9% Placebo: Intravenous infusion of 500 mL normal saline, started after induction of anesthesia for 24 hours.
Plasma Troponin I at 24 Hour After Cardiopulmonary Bypass
3.08 ng/mL
Interval 1.3 to 6.59
3.77 ng/mL
Interval 0.0 to 36.53

PRIMARY outcome

Timeframe: 48 hour after cardiopulmonary bypass

Plasma troponin I were measured using enzyme immunoassay (ELISA) in unit of ng/mL

Outcome measures

Outcome measures
Measure
Glutamine
n=29 Participants
Intravenous L-alanyl-L-glutamine 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide: Intravenous infusion of 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide diluted in normal saline to volume of 500 mL, started after induction of anesthesia for 24 hours.
Control
n=29 Participants
Intravenous NaCl 0.9% Placebo: Intravenous infusion of 500 mL normal saline, started after induction of anesthesia for 24 hours.
Plasma Troponin I at 48 Hour After Cardiopulmonary Bypass
1.66 ng/mL
Interval 0.0 to 7.33
1.75 ng/mL
Interval 0.0 to 53.33

PRIMARY outcome

Timeframe: Before induction to anesthesia

Plasma glutamine were measured using colorimetric tests in unit of µmol/L

Outcome measures

Outcome measures
Measure
Glutamine
n=29 Participants
Intravenous L-alanyl-L-glutamine 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide: Intravenous infusion of 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide diluted in normal saline to volume of 500 mL, started after induction of anesthesia for 24 hours.
Control
n=29 Participants
Intravenous NaCl 0.9% Placebo: Intravenous infusion of 500 mL normal saline, started after induction of anesthesia for 24 hours.
Plasma Glutamine at Baseline
555.09 μmol/L
Standard Deviation 198.16
632.24 μmol/L
Standard Deviation 266.36

PRIMARY outcome

Timeframe: 24 hour after cardiopulmonary bypass

Plasma glutamine were measured using colorimetric tests in unit of µmol/L

Outcome measures

Outcome measures
Measure
Glutamine
n=29 Participants
Intravenous L-alanyl-L-glutamine 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide: Intravenous infusion of 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide diluted in normal saline to volume of 500 mL, started after induction of anesthesia for 24 hours.
Control
n=29 Participants
Intravenous NaCl 0.9% Placebo: Intravenous infusion of 500 mL normal saline, started after induction of anesthesia for 24 hours.
Plasma Glutamine at 24 Hour After Cardiopulmonary Bypass
935.42 μmol/L
Standard Deviation 319.10
634.79 μmol/L
Standard Deviation 243.89

SECONDARY outcome

Timeframe: 5 minute after cardiopulmonary bypass

Right atrial appendage alpha-ketoglutarate were measured from right atrial appendage tissue biopsy using colorimetric tests in unit of g/mol.

Outcome measures

Outcome measures
Measure
Glutamine
n=29 Participants
Intravenous L-alanyl-L-glutamine 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide: Intravenous infusion of 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide diluted in normal saline to volume of 500 mL, started after induction of anesthesia for 24 hours.
Control
n=29 Participants
Intravenous NaCl 0.9% Placebo: Intravenous infusion of 500 mL normal saline, started after induction of anesthesia for 24 hours.
Right Atrial Appendage Alpha-ketoglutarate
674.93 g/mol
Standard Deviation 333.49
507.32 g/mol
Standard Deviation 280.79

SECONDARY outcome

Timeframe: 5 minute after cardiopulmonary bypass

Right atrial appendage myocardial injury score were measured from tissue section stained with hematoxylin-eosin and examined under by light microscopy in score of 0 (no change) to 3 (major changes with necrosis and diffuse inflammation). Higher scores mean worse outcome

Outcome measures

Outcome measures
Measure
Glutamine
n=29 Participants
Intravenous L-alanyl-L-glutamine 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide: Intravenous infusion of 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide diluted in normal saline to volume of 500 mL, started after induction of anesthesia for 24 hours.
Control
n=29 Participants
Intravenous NaCl 0.9% Placebo: Intravenous infusion of 500 mL normal saline, started after induction of anesthesia for 24 hours.
Right Atrial Appendage Myocardial Injury Score
1.30 score on a scale
Standard Deviation 0.24
1.48 score on a scale
Standard Deviation 0.26

SECONDARY outcome

Timeframe: 5 minute after cardiopulmonary bypass

Right atrial appendage apoptosis index were measured from tissue section stained with in situ terminal deoxynucleotidyl transferase dUTP nick end labelling (TUNEL) and examined under light microscopy in average number of apoptotic cells (positively stained) from 6 random fields per section

Outcome measures

Outcome measures
Measure
Glutamine
n=29 Participants
Intravenous L-alanyl-L-glutamine 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide: Intravenous infusion of 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide diluted in normal saline to volume of 500 mL, started after induction of anesthesia for 24 hours.
Control
n=29 Participants
Intravenous NaCl 0.9% Placebo: Intravenous infusion of 500 mL normal saline, started after induction of anesthesia for 24 hours.
Right Atrial Appendage Apoptosis Index
5.00 cell
Interval 0.0 to 45.0
6.17 cell
Interval 1.0 to 52.0

SECONDARY outcome

Timeframe: 5 minute after cardiopulmonary bypass

Right atrial appendage anti cardiac troponin I expression were measured from tissue section stained with anti-cardiac troponin I antibody and examined under light microscopy in score of 0 (no change) to -3 (no area observed with anti-cardiac troponin I expression). Higher score mean better outcome

Outcome measures

Outcome measures
Measure
Glutamine
n=29 Participants
Intravenous L-alanyl-L-glutamine 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide: Intravenous infusion of 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide diluted in normal saline to volume of 500 mL, started after induction of anesthesia for 24 hours.
Control
n=29 Participants
Intravenous NaCl 0.9% Placebo: Intravenous infusion of 500 mL normal saline, started after induction of anesthesia for 24 hours.
Anti Cardiac Troponin I Expression
-0.33 score on a scale
Interval -1.0 to 0.0
-0.83 score on a scale
Interval -1.0 to 0.0

SECONDARY outcome

Timeframe: Immediately after induction of anesthesia

Ejection fraction were measured by transesophageal echocardiography using Simpson method in percentage (%)

Outcome measures

Outcome measures
Measure
Glutamine
n=29 Participants
Intravenous L-alanyl-L-glutamine 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide: Intravenous infusion of 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide diluted in normal saline to volume of 500 mL, started after induction of anesthesia for 24 hours.
Control
n=29 Participants
Intravenous NaCl 0.9% Placebo: Intravenous infusion of 500 mL normal saline, started after induction of anesthesia for 24 hours.
Ejection Fraction
41.40 percentage
Interval 30.7 to 47.5
41.60 percentage
Interval 32.0 to 49.6

SECONDARY outcome

Timeframe: 5 minutes after cardiopulmonary bypass

Ejection fraction were measured by transesophageal echocardiography using Simpson method in percentage (%)

Outcome measures

Outcome measures
Measure
Glutamine
n=29 Participants
Intravenous L-alanyl-L-glutamine 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide: Intravenous infusion of 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide diluted in normal saline to volume of 500 mL, started after induction of anesthesia for 24 hours.
Control
n=29 Participants
Intravenous NaCl 0.9% Placebo: Intravenous infusion of 500 mL normal saline, started after induction of anesthesia for 24 hours.
Ejection Fraction
46.17 percentage
Standard Deviation 5.15
45.55 percentage
Standard Deviation 5.03

SECONDARY outcome

Timeframe: Immediately after induction of anesthesia, 5 minute, 2 hour, 6 hour, 24 hour after cardiopulmonary bypass

Cardiac index were measured from pulmonary artery catheter using thermodilution method in unit of L/min/m\^2

Outcome measures

Outcome measures
Measure
Glutamine
n=29 Participants
Intravenous L-alanyl-L-glutamine 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide: Intravenous infusion of 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide diluted in normal saline to volume of 500 mL, started after induction of anesthesia for 24 hours.
Control
n=29 Participants
Intravenous NaCl 0.9% Placebo: Intravenous infusion of 500 mL normal saline, started after induction of anesthesia for 24 hours.
Cardiac Index
Immediately after induction of anesthesia
2.00 L/min/m^2
Standard Deviation 0.58
1.87 L/min/m^2
Standard Deviation 0.35
Cardiac Index
5 minutes after cardiopulmonary bypass
3.15 L/min/m^2
Standard Deviation 0.57
3.03 L/min/m^2
Standard Deviation 0.38
Cardiac Index
2 hours after cardiopulmonary bypass
2.45 L/min/m^2
Standard Deviation 0.55
2.36 L/min/m^2
Standard Deviation 0.56
Cardiac Index
6 hours after cardiopulmonary bypass
2.54 L/min/m^2
Standard Deviation 0.45
2.27 L/min/m^2
Standard Deviation 0.40
Cardiac Index
24 hours after cardiopulmonary bypass
2.68 L/min/m^2
Standard Deviation 0.35
2.47 L/min/m^2
Standard Deviation 0.41

SECONDARY outcome

Timeframe: Before induction to anesthesia

Plasma lactate were measured using enzymatic method by blood gas analyser machine in unit of mmol/L

Outcome measures

Outcome measures
Measure
Glutamine
n=29 Participants
Intravenous L-alanyl-L-glutamine 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide: Intravenous infusion of 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide diluted in normal saline to volume of 500 mL, started after induction of anesthesia for 24 hours.
Control
n=29 Participants
Intravenous NaCl 0.9% Placebo: Intravenous infusion of 500 mL normal saline, started after induction of anesthesia for 24 hours.
Plasma Lactate Before Induction to Anesthesia
1.40 mmol/L
Interval 0.9 to 2.4
1.30 mmol/L
Interval 0.5 to 2.3

SECONDARY outcome

Timeframe: 5 minute after cardiopulmonary bypass

Plasma lactate were measured using enzymatic method by blood gas analyser machine in unit of mmol/L

Outcome measures

Outcome measures
Measure
Glutamine
n=29 Participants
Intravenous L-alanyl-L-glutamine 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide: Intravenous infusion of 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide diluted in normal saline to volume of 500 mL, started after induction of anesthesia for 24 hours.
Control
n=29 Participants
Intravenous NaCl 0.9% Placebo: Intravenous infusion of 500 mL normal saline, started after induction of anesthesia for 24 hours.
Plasma Lactate 5 Minute After Cardiopulmonary Bypass
2.02 mmol/L
Standard Deviation 0.53
2.08 mmol/L
Standard Deviation 0.62

SECONDARY outcome

Timeframe: 6 hours after cardiopulmonary bypass

Plasma lactate were measured using enzymatic method by blood gas analyser machine in unit of mmol/L

Outcome measures

Outcome measures
Measure
Glutamine
n=29 Participants
Intravenous L-alanyl-L-glutamine 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide: Intravenous infusion of 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide diluted in normal saline to volume of 500 mL, started after induction of anesthesia for 24 hours.
Control
n=29 Participants
Intravenous NaCl 0.9% Placebo: Intravenous infusion of 500 mL normal saline, started after induction of anesthesia for 24 hours.
Plasma Lactate 6 Hours After Cardiopulmonary Bypass
5.30 mmol/L
Interval 1.2 to 9.5
5.70 mmol/L
Interval 2.8 to 11.3

SECONDARY outcome

Timeframe: 24 hours after cardiopulmonary bypass

Plasma lactate were measured using enzymatic method by blood gas analyser machine in unit of mmol/L

Outcome measures

Outcome measures
Measure
Glutamine
n=29 Participants
Intravenous L-alanyl-L-glutamine 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide: Intravenous infusion of 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide diluted in normal saline to volume of 500 mL, started after induction of anesthesia for 24 hours.
Control
n=29 Participants
Intravenous NaCl 0.9% Placebo: Intravenous infusion of 500 mL normal saline, started after induction of anesthesia for 24 hours.
Plasma Lactate 24 Hours After Cardiopulmonary Bypass
2.08 mmol/L
Standard Deviation 0.67
2.46 mmol/L
Standard Deviation 0.69

SECONDARY outcome

Timeframe: 48 hours after cardiopulmonary bypass

Plasma lactate were measured using enzymatic method by blood gas analyser machine in unit of mmol/L

Outcome measures

Outcome measures
Measure
Glutamine
n=29 Participants
Intravenous L-alanyl-L-glutamine 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide: Intravenous infusion of 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide diluted in normal saline to volume of 500 mL, started after induction of anesthesia for 24 hours.
Control
n=29 Participants
Intravenous NaCl 0.9% Placebo: Intravenous infusion of 500 mL normal saline, started after induction of anesthesia for 24 hours.
Plasma Lactate 48 Hours After Cardiopulmonary Bypass
2.13 mmol/L
Standard Deviation 0.63
2.28 mmol/L
Standard Deviation 0.61

SECONDARY outcome

Timeframe: 28 days (or until hospital discharge)

Intensive care unit ventilation time were measured from length of time participant was on ventilator in intensive care unit in minutes.

Outcome measures

Outcome measures
Measure
Glutamine
n=29 Participants
Intravenous L-alanyl-L-glutamine 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide: Intravenous infusion of 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide diluted in normal saline to volume of 500 mL, started after induction of anesthesia for 24 hours.
Control
n=29 Participants
Intravenous NaCl 0.9% Placebo: Intravenous infusion of 500 mL normal saline, started after induction of anesthesia for 24 hours.
Intensive Care Unit Ventilation Time
652.82 minutes
Standard Deviation 195.09
656.82 minutes
Standard Deviation 277.07

SECONDARY outcome

Timeframe: 28 days (or until hospital discharge)

Intensive care unit length of stay were measured from length of time participant spent in intensive care unit in unit of hours

Outcome measures

Outcome measures
Measure
Glutamine
n=29 Participants
Intravenous L-alanyl-L-glutamine 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide: Intravenous infusion of 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide diluted in normal saline to volume of 500 mL, started after induction of anesthesia for 24 hours.
Control
n=29 Participants
Intravenous NaCl 0.9% Placebo: Intravenous infusion of 500 mL normal saline, started after induction of anesthesia for 24 hours.
Intensive Care Unit Length of Stay
20.00 hours
Interval 14.0 to 28.0
20.00 hours
Interval 16.0 to 29.0

SECONDARY outcome

Timeframe: 28 days (or until hospital discharge)

Vasoactive inotropic score (VIS) were maximum vasoactive and inotropic dose required by participant after surgery measured by VIS=dopamine dose in mg/kgbw/min + dobutamine dose in mg/kgbw/min + 100 x epinephrine dose in mg/kgbw/min + 10 x milrinone dose in mcg/kgbw/min + 10.000 x vasopressin dose in units/kgbw/min + 100 x norepinephrine dose in mcg/kgbw/min. Higher scores means worse outcomes. VIS \>= 20 is considered as high VIS and is associated with poor outcomes.

Outcome measures

Outcome measures
Measure
Glutamine
n=29 Participants
Intravenous L-alanyl-L-glutamine 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide: Intravenous infusion of 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide diluted in normal saline to volume of 500 mL, started after induction of anesthesia for 24 hours.
Control
n=29 Participants
Intravenous NaCl 0.9% Placebo: Intravenous infusion of 500 mL normal saline, started after induction of anesthesia for 24 hours.
Vasoactive Inotropic Score
5.00 score on a scale
Interval 0.0 to 15.0
5.00 score on a scale
Interval 0.0 to 17.5

OTHER_PRE_SPECIFIED outcome

Timeframe: Intraoperative

Number of coronary arteries grafted during operation

Outcome measures

Outcome measures
Measure
Glutamine
n=29 Participants
Intravenous L-alanyl-L-glutamine 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide: Intravenous infusion of 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide diluted in normal saline to volume of 500 mL, started after induction of anesthesia for 24 hours.
Control
n=29 Participants
Intravenous NaCl 0.9% Placebo: Intravenous infusion of 500 mL normal saline, started after induction of anesthesia for 24 hours.
Coronary Graft
3.00 grafts
Interval 2.0 to 4.0
3.00 grafts
Interval 2.0 to 4.0

OTHER_PRE_SPECIFIED outcome

Timeframe: Intraoperative

Total time taken for the surgical procedure. Measured in minutes.

Outcome measures

Outcome measures
Measure
Glutamine
n=29 Participants
Intravenous L-alanyl-L-glutamine 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide: Intravenous infusion of 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide diluted in normal saline to volume of 500 mL, started after induction of anesthesia for 24 hours.
Control
n=29 Participants
Intravenous NaCl 0.9% Placebo: Intravenous infusion of 500 mL normal saline, started after induction of anesthesia for 24 hours.
Total Surgical Procedure Time
225.79 minutes
Standard Deviation 45.60
214.48 minutes
Standard Deviation 50.13

OTHER_PRE_SPECIFIED outcome

Timeframe: Intraoperative

Total time measured the patient went under cardiopulmonary bypass. Measured in minutes.

Outcome measures

Outcome measures
Measure
Glutamine
n=29 Participants
Intravenous L-alanyl-L-glutamine 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide: Intravenous infusion of 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide diluted in normal saline to volume of 500 mL, started after induction of anesthesia for 24 hours.
Control
n=29 Participants
Intravenous NaCl 0.9% Placebo: Intravenous infusion of 500 mL normal saline, started after induction of anesthesia for 24 hours.
Cardiopulmonary Bypass Time
87.00 minutes
Interval 55.0 to 113.0
78.00 minutes
Interval 39.0 to 138.0

OTHER_PRE_SPECIFIED outcome

Timeframe: Intraoperative

Total time the patient underwent aortic cross-clamping during the surgical procedure. Measured in minutes.

Outcome measures

Outcome measures
Measure
Glutamine
n=29 Participants
Intravenous L-alanyl-L-glutamine 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide: Intravenous infusion of 0.5 mg/kgbw L-alanyl-L-glutamine dipeptide diluted in normal saline to volume of 500 mL, started after induction of anesthesia for 24 hours.
Control
n=29 Participants
Intravenous NaCl 0.9% Placebo: Intravenous infusion of 500 mL normal saline, started after induction of anesthesia for 24 hours.
Aortic Cross-clamping Time
44.38 minutes
Standard Deviation 9.07
43.86 minutes
Standard Deviation 14.81

Adverse Events

Glutamine

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

Control

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

I Made Adi Parmana, M.D.

Nationcal Cardiovascular Center Harapan Kita

Phone: +62 812-4601-212

Results disclosure agreements

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