Trial of a Chicken Extract for Improving Mental Energy and Mechanisms of Action in Healthy Adults: A Randomized, Double-blind, Placebo-controlled Exploratory Study
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 189
- 试验地点
- 2
- 主要终点
- Fatigue assessed by visual analogue scale (VAS)
研究概览
简要总结
This exploratory trial investigates the effect of a chicken extract supplement on mental energy and its potential underlying mechanisms of action among healthy adults using a randomized, double-blind, placebo-controlled clinical trial design. Mental energy is a multi-dimensional construct comprising transient feelings about fatigue, vigor and motivation and cognitive performance in terms of sustained attention and reaction time.
A sub-study investigates the immediate biochemical changes after taking chicken extract.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 35 Years 至 64 Years(Adult)
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Male or female at 35-64 years of age
- •Assessed by investigator to be in good health
- •Normal cognition based on investigator's clinical judgement per the routine practice
- •Modified PSQI score > 5
- •Agree to participate in the study and provide written informed consent
- •Agree to abstain from herbal extracts or dietary supplements throughout the study period
排除标准
- •BMI < 18.5 or ≥ 27 kg/m2
- •Concurrent pharmacological treatments
- •Current systemic diseases or current/history of neurological or cerebrovascular diseases
- •Active peptic ulcer, or a history of peptic ulcer within the last 2 years
- •Medications or interventions in the last 4 weeks, which in the investigators' judgement could potentially affect the outcome measures
- •Regular significant quantities of dietary supplements or herbal extracts (> 2 times a week) in the last 4 weeks
- •Regular excessive caffeine consumption, heavy alcohol consumption or heavy habitual smokers
- •Any drastic changes in lifestyle (including diet, smoking, sleep, exercise, and mental and physical activities) in the last 4 weeks
- •Not able to maintain the same lifestyle throughout the study period
- •Inadequate visual and auditory acuity to allow neuropsychological testing per investigator's judgment
- •Inability to undergo fMRI scan
- •Any consumption of chicken extract supplement, or carnosine or anserine supplement, in the preceding 4 weeks
- •History of allergy to caseinate, milk, or chicken meat
- •Women who are pregnant or lactating or intending to do so
- •Current enrolment in another interventional study
- •Subjects who show unstable sleep habits during the previous month
- •Excessive blood donation or blood drawn prior to baseline
结局指标
主要结局
Fatigue assessed by visual analogue scale (VAS)
时间窗: Daily from baseline to Day 14
VAS scores range from 0 to 100, with higher score indicating greater fatigue.
Vigor assessed by visual analogue scale (VAS)
时间窗: Daily from baseline to Day 14
VAS scores range from 0 to 100, with higher score indicating greater vigor.
Reaction time assessed by Deary-Liewald reaction time task
时间窗: At baseline and on Day 14
Sustained attention assessed by trail making test
时间窗: At baseline and on Day 14
Vigor assessed by Profile of Mood States (POMS)
时间窗: Daily from baseline to Day 14
POMS-vigor scores range from 0 to 28, with the higher score indicating greater vigor.
Plasma carnosine
时间窗: At baseline and on Day 14
Plasma anserine
时间窗: At baseline and on Day 14
Reaction time and sustained attention (composite) assessed by Cogstate Brief Battery (CBB)
时间窗: At baseline and on Day 14
Plasma global metabolome (metabolic profile) using liquid chromatography mass spectrometry (LCMS)
时间窗: At baseline and on Day 14
Plasma samples will be analyzed to putatively identify biomarkers of product intake by comparison of test group with control group using high-performance liquid chromatography coupled to mass spectrometer (LCMS). LCMS analysis allows the simultaneous and non-targeted analysis of a wide array of endogenous and exogenous metabolites.
Salivary cortisol level
时间窗: At baseline and on Day 14
Plasma beta-alanine
时间窗: At baseline and on Day 14
Sustained attention assessed by psychomotor vigilance test
时间窗: At baseline and on Day 14
Fatigue assessed by Profile of Mood States (POMS)
时间窗: Daily from baseline to Day 14
POMS-fatigue scores range from 0 to 24, with higher score indicating greater fatigue.
Plasma methylhistidine
时间窗: At baseline and on Day 14
Motivation assessed by visual analogue scale (VAS)
时间窗: Daily from baseline to Day 14
VAS scores range from 0 to 100, with higher score indicating greater motivation.
Cerebral blood flow using arterial spin labelling magnetic resonance imaging (MRI)
时间窗: At baseline and on Day 14
Cerebral oxygenation using functional MRI blood oxygenation level dependent (BOLD) imaging
时间窗: At baseline and on Day 14
Whole body metabolic rate using indirect calorimetry
时间窗: At baseline and on Day 14
Resting body metabolic rate will be measured
Plasma L-histidine
时间窗: At baseline and on Day 14
次要结局
- Sleep quality measured by modified Pittsburgh Sleep Quality Index (PSQI)(At baseline and on Day 14)
