- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02401646
Clinical Trials for the Effects of Polygoni Multiflori Radix Complex Extract on Memory Improvement
Study Overview
Status
Conditions
Intervention / Treatment
Study Type
Enrollment (Anticipated)
Phase
- Phase 4
Contacts and Locations
Study Locations
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Gyeongsangnamdo
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Yangsan, Gyeongsangnamdo, Korea, Republic of, 626-770
- Pusan National University Korean Medicine Hospital
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- A person who is more than 50 years and lesser than 70 years of age
- A person who's MQ(Memory Quotient) score is within more than 70 and lesser than 120
Exclusion Criteria:
- The patient who has past history related to memory
- The patient who has Diabetes Mellitus
- The person whose fasting blood sugar is more than 126mg/dL
- The patients who has uncontrolled hypertension
- The patient who has liver disorders
- The patient whose AST(aspartate aminotransferase) or ALT(alanine aminotransferase) level is more than 60 IU/L(international units per liter)
- The patients who has heart disorders (Angina pectoris, Myocardial infarction)
- The patient who has past history related to excision of G-I tract excluding cecum
- The patient who took drug or heal functional food within 4 weeks before screening
- The patient who took decoction of herb within 4 weeks before screening
- The patient who can't write or communicate
- pregnant woman
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Supportive Care
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Polygoni Multiflori Radix complex
Participants randomized to the experimental group will take one capsule of Polygoni Multiflori Radix complex extract (250mg) twice a day, 30 minutes after breakfast and dinner for 4 weeks.
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Intervention is manufactured by Chun-Ho food
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Placebo Comparator: Starch
Participants randomized to the placebo group will take one capsule of placebo(250mg) twice a day, 30 minutes after breakfast and dinner for 4 weeks.
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The placebo is filled with starch, so does not contain the active ingredient.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Change from baseline on Memory Quotient score at 2 weeks and 4 weeks
Time Frame: baseline, at 2 weeks after taking experimental or placebo dietary supplement, at 4 weeks after taking supplement
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baseline, at 2 weeks after taking experimental or placebo dietary supplement, at 4 weeks after taking supplement
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change from baseline in Memory registration at 2 weeks and 4 weeks
Time Frame: baseline, at 2 weeks after taking experimental or placebo dietary supplement, at 4 weeks after taking supplement
|
Rey-Kim scale is a tool to assess the short-term memory. It is composed of AVLT and CFT. # AVLT After tester speaks each 15 word, subjects are asked to tell all words immediately as memory serves. This process is repeated 5 times (Each process is called AVLT process 1-5 according to priority). After 20 minutes interval, subjects are also asked to tell all words they can remember (AVLT process 6). Right after that, subjects should select the words they heard among 35 words (AVLT process 7). Memory registration is calculated by converting score difference into a percentage between AVLT process 1 and 5 mentioned above. |
baseline, at 2 weeks after taking experimental or placebo dietary supplement, at 4 weeks after taking supplement
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Change from baseline in Memory retention at 2 weeks and 4 weeks
Time Frame: baseline, at 2 weeks after taking experimental or placebo dietary supplement, at 4 weeks after taking supplement
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# AVLT After tester speaks each 15 word, subjects are asked to tell all words immediately as memory serves. This process is repeated 5 times (Each process is called AVLT process 1-5 according to priority). After 20 minutes interval, subjects are also asked to tell all words they can remember (AVLT process 6). Right after that, subjects should select the words they heard among 35 words (AVLT process 7). Memory retention is calculated by converting score difference into a percentage between AVLT process 5 and 6 mentioned above. |
baseline, at 2 weeks after taking experimental or placebo dietary supplement, at 4 weeks after taking supplement
|
Change from baseline in Retrieval efficiency at 2 weeks and 4 weeks
Time Frame: baseline, at 2 weeks after taking experimental or placebo dietary supplement, at 4 weeks after taking supplement
|
# AVLT After tester speaks each 15 word, subjects are asked to tell all words immediately as memory serves. This process is repeated 5 times (Each process is called AVLT process 1-5 according to priority). After 20 minutes interval, subjects are also asked to tell all words they can remember (AVLT process 6). Right after that, subjects should select the words they heard among 35 words (AVLT process 7). Retrieval efficiency is calculated by converting score difference into a percentage between AVLT process 6 and 7 mentioned above. |
baseline, at 2 weeks after taking experimental or placebo dietary supplement, at 4 weeks after taking supplement
|
Change from baseline in Copy-recall difference index at 2 weeks and 4 weeks
Time Frame: baseline, at 2 weeks after taking experimental or placebo dietary supplement, at 4 weeks after taking supplement
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Rey-Kim scale is a tool to assess the short-term memory. It is composed of AVLT and CFT. # CFT After tester shows subjects very complicated figure, subjects are asked to copy it (CFT process 1). Right after that, subjects should draw the figure as memory serves (CFT process 2). After 20 minutes interval, subjects are also asked to select the part of figure they copy among various figures (CFT process 3). Copy-recall difference index is calculated by converting score difference into a percentage between CFT process 1 and 2 mentioned above. |
baseline, at 2 weeks after taking experimental or placebo dietary supplement, at 4 weeks after taking supplement
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Collaborators and Investigators
Investigators
- Study Chair: In Lee, Doctor, Pusan National University Korean Medicine Hospital
- Principal Investigator: Hye-lim Park, Master, Pusan National University Korean Medicine Hospital
- Principal Investigator: Eunhye Jeong, bachelor, National Clinical Research Center for Korean Medicine Pusan National University Korean Medicine Hospital
- Principal Investigator: Hana Lee, bachelor, National Clinical Research Center for Korean Medicine Pusan National University Korean Medicine Hospital
Study record dates
Study Major Dates
Study Start
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Other Study ID Numbers
- Memory_2015
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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