Examining the safety and tolerability of Lentil Protein Hydrolysate in healthy males and females whilst exploring the effects of a dose range on blood pressure control and vascular function and exercise performance
The aim of this trial is to evaluate the safety and tolerability of a lentil protein hydrolysate (LPH) in healthy participants while exploring effects on blood pressure control, vascular function and exercise performance. The study will be conducted in men and women over 4 weeks. Specifically, the study has three key objectives: 1. To determine the safety and tolerability of 500 - 2000mg of a novel plant-based supplement LPH) in healthy volunteers as assessed via AE reporting, changes in clinic blood pressure and supplementation induced orthostatic hypotension during a sit-to-stand challenge. 2. To explore the effects of 4-weeks of lentil protein hydrolysate supplementation on markers of vascular age and endothelial function, fatigue, quality of life, and grip strength. 3. To explore the effects of 4-weeks of LPH supplementation on markers of exercise performance, including cardiorespiratory fitness (VO2max) and substrate utilisation during sub-maximal, steady-state exercise. This trial incorporates a wearable device to measure physical activity, cardiac health, sleep metrics and heart rate variability.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
OTHER
Masking
TRIPLE
Enrollment
48
Plant protein hydrolysate
Placebo MCC micro-crystalline cellulose
Baker Heart and Diabetes Institute
Melbourne, Victoria, Australia
RECRUITINGSafety and Tolerability of a dose range of Lentil protein hydrolyste via adverse event reporting
Change from baseline to the end of the study period in safety via adverse event frequency and severity between placebo and a dose range of Lentil protein hydrolysate
Time frame: Day 1 to Day 28
Safety and Tolerability of a dose range of Lentil protein hydrolyste via blood pressure recording
Elevation in resting systolic or diastolic blood pressure \>10mm Hg between baseline and after supplementation with lentil protein hydrolysate or placebo.
Time frame: Day 1 to Day 28
Safety and Tolerability of a dose range of Lentil protein hydrolyste via blood pressure recording
Decrease in systolic (\>20mmHg) or diastolic (\>10mmHg) blood pressure upon standing after acute supplementation with lentil protein hydrolysate or placebo.
Time frame: Day 1
Safety via electrolytes and liver function tests
Change from baseline to the end of the study period in safety determined by combining results of a full blood test investigating concentration (cells/L) and quantity of red blood cells, white blood cells and platelets, electrolytes (mmol/L) and concentrations of liver function markers (U/L); Albumin, Bilirubin, Alanine aminotransferase (ALT), Aspartate amino transferase (AST), Gamma-glutamyl transferase (GGT) and Alkaline phosphatase (ALP)
Time frame: Day 1 to Day 28
Arterial stiffness
Change from baseline to the end of the study period in central arterial stiffness, measured via aortic pulse-wave velocity
Time frame: Day 1 to Day 28
Endothelial function
Change from baseline to the end of the study period in endothelium-dependent vascular function measured by flow-mediated dilation
Time frame: Day 1 to Day 28
Substrate utilisation during sub-maximal, steady-state exercise
Change from baseline to the end of the study period in the rate of oxygen consumption and the oxidative rate of fat and carbohydrates during steady-state exercise
Time frame: Day 1 to Day 28
Cardiorespiratory fitness (VO2max)
Change from baseline to the end of the study period in cardiorespiratory fitness measured during a cardiopulmonary exercise test
Time frame: Day 1 to Day 28
Blood pressure response to exercise
Change from baseline to the end of the study period in blood pressure response to cardiopulmonary exercise test
Time frame: Day 1 to Day 28
Quality of life via 12-item Short-Form Health Survey version 2
Change from baseline to the end of the study period in general health via 12-item Short-Form Health Survey version 2
Time frame: Day 1 to Day 28
Fatigue symptoms via Multidimensional Fatigue Inventory
Change from baseline to the end of the study period in fatigue symptoms measured via Multidimensional Fatigue Inventory where scores range from 1 (no fatigue) to 50 (severe fatigue)
Time frame: Day 1 to Day 28
Grip Strength
Change from baseline to the end of the study period in hand grip strength measured via a hand-held dynamometer
Time frame: Day 1 to Day 28
Markers associated with inflammation via blood test
Change from baseline to the end of the study period in inflammatory Markers such as CRP
Time frame: Day 1 to Day 28
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