This trial investigates the effect of a chicken extract supplement and a peptide supplement on cognitive function and potential mechanisms of action of cognitive decline during ageing, among non-demented elderly adults using a three-arm, randomized, placebo-controlled clinical trial design.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
QUADRUPLE
Enrollment
276
70ml of chicken extract supplement to be consumed daily in the morning before meals for 2 years.
70ml of Peptide Supplement (670mg) to be consumed daily in the morning before meals for 2 years.
70ml of placebo (caesinate) to be consumed daily in the morning before meals for 2 years.
Taipei Medical University Hospital Shuang Ho Hospital
New Taipei City, Taiwan
National Cheng Kung University Hospital
Tainan, Taiwan
Taoyuan Chang Gung Memorial Hospital
Taoyuan District, Taiwan
Cognitive Function assessed by Alzheimer's Disease Composite Score (ADCOMS)
Change from baseline in Alzheimer's Disease Composite Score (ADCOMS). ADCOMS composite score is a weighted linear combination of the 12 items in the Wold's partial least squares (PLS) model. Composite scores range from 0.0 to a maximum of 1.97, where higher values indicate worse performance.
Time frame: 24 months
Florbetaben (18F) PET Scan Imaging
Change from baseline values in Florbetaben (18F) PET scan
Time frame: 24 months
Handgrip strength
Change from baseline in handgrip strength
Time frame: 12 months & 24 months
Ratio of plasma tau protein and amyloid-beta 42
Change from baseline in plasma tau protein \& amyloid-beta 42 ratio
Time frame: 24 months
Alzheimer's Disease Composite Score (ADCOMS)
Change from baseline in Alzheimer's Disease Composite Score (ADCOMS). ADCOMS composite score is a weighted linear combination of the 12 items in the Wold's partial least squares (PLS) model. Composite scores range from 0.0 to a maximum of 1.97, where higher values indicate worse performance.
Time frame: 12 months
Blood myeloperoxidase (MPO) levels
Change from baseline in blood myeloperoxidase (MPO) Higher levels of MPO indicate worse oxidative stress status
Time frame: 12 months & 24 months
Blood inflammation biomarker levels (hs-CRP, ESR, TNF-α, IL-6)
Change from baseline in inflammation, measured by the following blood biomarkers. Each biomarker will be evaluated individually. 1. High-sensitivity C-reactive Protein (hs-CRP) 2. Erythrocyte Sedimentation Rate (ESR) 3. Tumor necrosis factor alpha (TNFα) 4. Interleukin 6 (IL-6)
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Time frame: 12 months & 24 months
Fasting blood glucose level
Change from baseline in fasting blood glucose level
Time frame: 4, 8, 12, 18 and 24 months
Taiwanese Depression Questionnaire (TQD) score
Change from baseline in patient-reported Taiwanese Depression Questionnaire (TQD) scores. TDQ scores range from 0 to 54, with the higher score indicating the greater depression state.
Time frame: 4, 8, 12, 18 and 24 months
Short Form-36 (SF-36) Component and Scale Scores
Change from baseline in Short Form-36 (SF-36) Component and Scale Scores. Each scale is directly transformed into a 0 - 100 scale on the assumption that each question carries equal weight. Lower score indicates more disability/worse health status.
Time frame: 4, 8, 12, 18 and 24 months
Athens Insomnia Scale (AIS)
Change from baseline in Athens Insomnia Scale Score. A composite score which ranges from 0-24 will be evaluated. Higher score stands for greater severity of insomnia.
Time frame: 4, 8, 12, 18 and 24 months
Incidence of infections
Number and incidence of infections occurring during the study period according to a self-reported infection survey
Time frame: 24 months, reported at each study visit (4, 8, 12, 18 and 24 months)
Cerebral blood flow measured with sonography
Mean values of cerebral blood flow measured with sonography
Time frame: 12 months & 24 months
Blood pressure (systolic blood pressure and diastolic blood pressure)
Change from baseline in systolic and diastolic blood pressure
Time frame: 4, 8, 12, 18 and 24 months