Elderly Individuals Aged 60 Years or OlderNCT06604390
THE EFFECTS OF GAMBIR CATECHIN (UNCARIA GAMBIR ROXB) SUPPLEMENTATION ON COGNITIVE FUNCTION, EXPRESSION OF APP, MAPT, BDNF, IL-10, TGF-Β GENES, AND PLASMA MDA LEVELS IN THE ELDERLY.
A study testing catechin extracts (health food) and plasebo in people with Elderly Individuals Aged 60 Years or Older and Mild Cognitive Impairment (MCI), run by Rahmi Novita Yusuf at 2 sites in 2 countries.
Trial summary
Objective The primary objective of this clinical trial is to investigate the effects of gambir catechin administration on cognitive function, the expression of amyloid precursor protein (APP), microtubule-associated protein tau (MAPT), brain-derived neurotrophic factor (BDNF), interleukin-10 (IL-10), transforming… Read more about this study
- Who is it for?
- Ages 60 to 85 yearsHealthy volunteers can take part
- Conditions the study is for
- Elderly Individuals Aged 60 Years or Older, Mild Cognitive Impairment (MCI)
- What is being tested?
- catechin extracts (health food) and plasebo
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 64 participants
- Where
- 2 sitesin 2 countries
- Study dates
- 1 Feb 2024to 15 Aug 2024
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 60 to 85 years
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Age 60 years and above
- Mild cognitive impairment (MoCA-INA score of 20-25)
- No history of neurological or psychiatric disorders
- No history of substance abuse or chronic medical conditions that may interfere with cognitive function
- Willingness to participate in the study and provide informed consent
Who cannot join
- Participants who did not take Catechin Capsules for two days in a row
Trial locations and contacts
2 sites in 2 countries.
2 sites in 2 countries
Fiji1 site
Andalas Univercity
Padang, West Sumatera, 25126
About this study
Official title: THE EFFECTS OF GAMBIR CATECHIN (UNCARIA GAMBIR ROXB) SUPPLEMENTATION ON COGNITIVE FUNCTION, EXPRESSION OF AMYLOID PRECURSOR PROTEIN (APP), MICROTUBULE ASSOCIATED PROTEIN TAU (MAPT), BRAIN-DERIVED NEUROTROPHIC FACTOR (BDNF), INTERLEUKIN 10 (IL-10), TRANSFORMING GROWTH FACTOR-BETA (TGF-BETA), AND PLASMA MALONDIALDEHYDE (MDA) LEVELS IN THE ELDERLY
Objective The primary objective of this clinical trial is to investigate the effects of gambir catechin administration on cognitive function, the expression of amyloid precursor protein (APP), microtubule-associated protein tau (MAPT), brain-derived neurotrophic factor (BDNF), interleukin-10 (IL-10), transforming growth factor beta (TGF-beta), and plasma malondialdehyde (MDA) levels in elderly individuals.
Research Questions
Read more
The primary research questions to be addressed in this study are as follows:
- Does the administration of gambir catechin (Uncaria gambir Roxb) improve cognitive function as measured by the Montreal Cognitive Assessment-Indonesia (MoCA-INA) in the elderly after 12 weeks of intervention?
- Does the administration of gambir catechin (Uncaria gambir Roxb) affect the expression of APP, MAPT, BDNF, IL-10, and TGF-beta genes in the elderly after 12 weeks of intervention?
- Does the administration of gambir catechin (Uncaria gambir Roxb) influence plasma MDA levels in the elderly after 12 weeks of intervention? Methodology
To answer these questions, researchers will compare the effects of gambir catechin with a placebo (an inert substance). This double-blind, randomized controlled trial will involve:
- Participant Recruitment: Elderly individuals will be recruited and randomly assigned to either the gambir catechin or placebo group.
- Intervention: Participants will receive daily doses of gambir catechin or a placebo for 12 weeks.
- Assessments: Cognitive function, gene expression, and plasma MDA levels will be assessed at baseline and after 12 weeks of intervention.
- Data Analysis: The collected data will be analyzed using appropriate statistical methods to determine the effects of gambir catechin.
Participant Involvement
Participants will be required to:
- Consume the assigned supplement (gambir catechin or placebo) daily.
- Attend regular follow-up visits at the research center.
- Report any adverse events or changes in their health during the study period.
Read the detailed description
Effects of Gambier Catechin (Uncaria gambir Roxb) Supplementation on Cognitive Function, APP, MAPT, BDNF, IL-10, TGF-β Gene Expression, and Plasma MDA Levels in the Elderly
- Background Problem: The increasing prevalence of mild cognitive impairment among the elderly and its impact on their quality of life. Research Gap: A lack of research on the utilization of local plants, specifically catechin, an active compound found in gambier leaves, which possesses antioxidant and anti-inflammatory properties and may enhance cognitive function in the elderly population in Indonesia. Research Objective: To investigate the effects of gambier catechin (Uncaria gambir Roxb) supplementation on cognitive function, APP, MAPT, BDNF, IL-10, TGF-β gene expression, and plasma MDA levels in the elderly.
- Hypothesis
- There is an effect of gambier catechin (Uncaria gambir Roxb) supplementation on improving cognitive function as measured by the MoCA-INA test in the elderly after 12 weeks of supplementation.
- There is an effect of gambier catechin (Uncaria gambir Roxb) supplementation on decreasing the expression of APP, MAPT, TGF-β genes and increasing the expression of BDNF, IL-10 genes in the elderly after 12 weeks of supplementation.
- There is an effect of gambier catechin (Uncaria gambir Roxb) supplementation on decreasing plasma MDA levels in the elderly after 12 weeks of supplementation.
- Research Method Research Design: A randomized controlled trial (RCT) design will be used. Population and Sample:The target population for this study is the elderly aged 60 years and above with mild cognitive impairment (MoCA-INA score of 20-25) residing in Padang City, West Sumatra, Indonesia.
- Research Procedure
- Recruitment and Screening
- Participants will be recruited from community centers, senior citizen clubs, and public health facilities in Padang City.
- Eligibility criteria will include:
- Age 60 years and above
- Mild cognitive impairment (MoCA-INA score of 20-25)
- No history of neurological or psychiatric disorders
- No history of substance abuse or chronic medical conditions that may interfere with cognitive function
- Willingness to participate in the study and provide informed consent
- Baseline Assessments <!-- -->
- Demographic information will be collected.
- Cognitive function will be assessed using the Montreal Cognitive Assessment-Indonesia (MoCA-INA) test.
- Blood samples will be drawn for biochemical analysis, including plasma MDA levels.
- Genetic analysis will be conducted to assess the expression of APP, MAPT, BDNF, IL-10, and TGF-β genes.
- Intervention
- Participants will be randomly assigned to either the intervention or control group.
- The intervention group will receive gambier catechin supplementation (Uncaria gambir Roxb) at a daily dose of [Insert dosage] for 12 weeks.
- The control group will receive a placebo. d. Follow-up Assessments <!-- -->
- Cognitive function will be reassessed using the MoCA-INA test at 12 weeks.
- Blood samples will be drawn for biochemical analysis and genetic analysis as described in the baseline assessments.
- Data Analysis
- Descriptive statistics will be used to summarize demographic data, cognitive function scores, and biochemical parameters.
- Inferential statistics, including t-tests and ANOVA, will be used to compare the differences between the intervention and control groups.
- Correlation analysis will be conducted to examine the relationship between cognitive function, genetic expression, and plasma MDA levels.
- Ethical Considerations
- The study will be conducted in accordance with ethical principles and guidelines, including the Declaration of Helsinki.
- Informed consent will be obtained from all participants.
- Participant confidentiality will be maintained throughout the study.
- Any adverse events will be monitored and reported.
- Being tested
- catechin extracts (health food), plasebo
- Keywords
- Catechin, Cognitive function, cognitive funtion
- Medical subject headings
- Cognitive Dysfunction
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
catechin extracts (health food)Dietary supplement
Type of intervention:
- Purified gambir ≥ 90% (+)-Catechin
- Dosage of 224 mg catechin capsule, once daily
- Dosage of 224 mg placebo capsule, once daily
- Cognitive function was assessed using MoCA-Ina and gene markers APP, MAPT, BDNF, IL-10, TGF-Beta and MDA Plasma.\"
plaseboOther
Dosage of 224 mg placebo per capsule, once daily. Cognitive function was assessed using the MoCA-Ina and biomarkers including APP, MAPT, BDNF, IL-10, TGF-Beta, and plasma MDA.
| Study group | Role | What they receive |
|---|---|---|
| Arm 1: Catechin Group Arm 2: Placebo Group | Placebo comparator | Arm 1: Catechin Group. Participants in this group received one capsule of gambir catechin daily, with a dosage of 224 mg.
Arm 2: Placebo Group. Participants in this group received one placebo capsule daily, with a dosage of 224 mg. Receives: Dietary Supplement: catechin extracts (health food); Other: plasebo |
| Effects of Gambier Catechin Supplementation on Cognitive Function, APP, MAPT, | Experimental | Gambir purified with a minimum of 90% (+)-Catechin content. Dosage of 224 mg catechin per capsule, once daily. |
What is being measured
The primary outcome is the main question the study is designed to answer.
To determine the effect of gambir catechin (Uncaria gambir Roxb) supplementation on cognitive function using the MoCA-INA test in the elderly after 12 weeks of supplementation
scor MoCA: 20 to 25
Measured: April to september 2024 ( 6 month)
To determine the effect of gambir catechin (Uncaria gambir Roxb) supplementation on the expression of APP, MAPT, BDNF, IL-10, and TGF-β genes in the elderly after 12 weeks of supplementation.
Gene expression was measured using PCR
Measured: April to september 2024 ( 6 month)
To determine the effect of gambir catechin (Uncaria gambir Roxb) supplementation on plasma MDA levels in the elderly after 12 weeks of supplementation.
Plasma MDA levels, as a marker of lipid peroxidation, were measured using a UV-vis spectrophotometer and the TBARS assay
Measured: April to september 2024 ( 6 month)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted19 Sep 2024
- Study start1 Feb 2024
- Primary completion6 Aug 2024
- Study completion15 Aug 2024
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (4)Papers the sponsor has linked to this study.
- Other trials for Elderly Individuals Aged 60 Years or OlderStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- Objective: This clinical trial aims to investigate the effects of gambir catechin supplementation on cognitive function, and plasma levels of APP, MAPT, BDNF, IL-10, TGF-beta, and MDA in the elderly. Research Design: A randomized controlled trial (RCT) design will be used. Population and Sample:The target population for this study is the elderly aged 60 years and above with mild cognitive impairment (MoCA-INA score of 20-25) residing in Padang City, West Sumatra, Indonesia. Intervention 1. Participants will be randomly assigned to either the intervention or control group. 2. The intervention group will receive gambier catechin supplementation (Uncaria gambir Roxb) at a daily dose of \[224 mg\] for 12 weeks. 3. The control group will receive a placebo.
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 64 participants (actual)
Sponsor and investigators
- Lead sponsor
- Rahmi Novita Yusuf
- Sponsor type
- University, hospital or other
- Collaborators
- Andalas University
- Responsible party
- Sponsor-investigator, Rahmi Novita Yusuf, Andalas University
- Investigators
- Nur Indrawati Lipoeto, Profesor, Principal investigator, Andalas University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06604390
- Sponsor's protocol ID
- 115/UN.16.2/KEP-FK/2024
- Other IDs
- TheResearchEthicsCommittee Fac
- Status last verified
- Sep 2024
- First submitted
- 12 Sep 2024
- Last updated
- 19 Sep 2024
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Baba Y, Kaneko T, Takihara T. Matcha consumption maintains attentional function following a mild acute psychological stress without affecting a feeling of fatigue: A randomized placebo-controlled study in young adults. Nutr Res. 2021 Apr;88:44-52. doi: 10.1016/j.nutres.2020.12.024. Epub 2021 Jan 2.
PubMed 33744591Baba Y, Inagaki S, Nakagawa S, Kaneko T, Kobayashi M, Takihara T. Effects of l-Theanine on Cognitive Function in Middle-Aged and Older Subjects: A Randomized Placebo-Controlled Study. J Med Food. 2021 Apr;24(4):333-341. doi: 10.1089/jmf.2020.4803. Epub 2021 Mar 22.
PubMed 33751906Ide K, Yamada H, Takuma N, Kawasaki Y, Harada S, Nakase J, Ukawa Y, Sagesaka YM. Effects of green tea consumption on cognitive dysfunction in an elderly population: a randomized placebo-controlled study. Nutr J. 2016 May 4;15(1):49. doi: 10.1186/s12937-016-0168-7.
PubMed 27142448Baba Y, Inagaki S, Nakagawa S, Kaneko T, Kobayashi M, Takihara T. Effect of Daily Intake of Green Tea Catechins on Cognitive Function in Middle-Aged and Older Subjects: A Randomized, Placebo-Controlled Study. Molecules. 2020 Sep 17;25(18):4265. doi: 10.3390/molecules25184265.
PubMed 32957612
Study at a glance
From the registry record, last updated by the sponsor on 19 Sep 2024. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- THE EFFECTS OF GAMBIR CATECHIN (UNCARIA GAMBIR ROXB) SUPPLEMENTATION ON COGNITIVE FUNCTION, EXPRESSION OF AMYLOID PRECURSOR PROTEIN (APP), MICROTUBULE ASSOCIATED PROTEIN TAU (MAPT), BRAIN-DERIVED NEUROTROPHIC FACTOR (BDNF), INTERLEUKIN 10 (IL-10), TRANSFORMING GROWTH FACTOR-BETA (TGF-BETA), AND PLASMA MALONDIALDEHYDE (MDA) LEVELS IN THE ELDERLY
- ClinicalTrials.gov ID
- NCT06604390
- Acronym / sponsor ID
- 115/UN.16.2/KEP-FK/2024
- Keywords
- Catechin, Cognitive function, cognitive funtion
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 64 participants (actual)
- Lead sponsor
- Rahmi Novita YusufUniversity, hospital or other
- Collaborators
- Andalas University
- Study start
- 1 Feb 2024 (actual)
- Primary completion
- 6 Aug 2024 (actual)
- Study completion
- 15 Aug 2024 (actual)
- First posted
- 19 Sep 2024 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Objective The primary objective of this clinical trial is to investigate the effects of gambir catechin administration on cognitive function, the expression of amyloid precursor protein (APP), microtubule-associated protein tau (MAPT), brain-derived neurotrophic factor (BDNF), interleukin-10 (IL-10), transforming growth factor beta (TGF-beta), and plasma malondialdehyde (MDA) levels in elderly individuals.
Research Questions
The primary research questions to be addressed in this study are as follows:
- Does the administration of gambir catechin (Uncaria gambir Roxb) improve cognitive function as measured by the Montreal Cognitive Assessment-Indonesia (MoCA-INA) in the elderly after 12 weeks of intervention?
- Does the administration of gambir catechin (Uncaria gambir Roxb) affect the expression of APP, MAPT, BDNF, IL-10, and TGF-beta genes in the elderly after 12 weeks of intervention?
- Does the administration of gambir catechin (Uncaria gambir Roxb) influence plasma MDA levels in the elderly after 12 weeks of intervention? Methodology
To answer these questions, researchers will compare the effects of gambir catechin with a placebo (an inert substance). This double-blind, randomized controlled trial will involve:
- Participant Recruitment: Elderly individuals will be recruited and randomly assigned to either the gambir catechin or placebo group.
- Intervention: Participants will receive daily doses of gambir catechin or a placebo for 12 weeks.
- Assessments: Cognitive function, gene expression, and plasma MDA levels will be assessed at baseline and after 12 weeks of intervention.
- Data Analysis: The collected data will be analyzed using appropriate statistical methods to determine the effects of gambir catechin.
Participant Involvement
Participants will be required to:
- Consume the assigned supplement (gambir catechin or placebo) daily.
- Attend regular follow-up visits at the research center.
- Report any adverse events or changes in their health during the study period.
Detailed description
Effects of Gambier Catechin (Uncaria gambir Roxb) Supplementation on Cognitive Function, APP, MAPT, BDNF, IL-10, TGF-β Gene Expression, and Plasma MDA Levels in the Elderly
- Background Problem: The increasing prevalence of mild cognitive impairment among the elderly and its impact on their quality of life. Research Gap: A lack of research on the utilization of local plants, specifically catechin, an active compound found in gambier leaves, which possesses antioxidant and anti-inflammatory properties and may enhance cognitive function in the elderly population in Indonesia. Research Objective: To investigate the effects of gambier catechin (Uncaria gambir Roxb) supplementation on cognitive function, APP, MAPT, BDNF, IL-10, TGF-β gene expression, and plasma MDA levels in the elderly.
- Hypothesis
- There is an effect of gambier catechin (Uncaria gambir Roxb) supplementation on improving cognitive function as measured by the MoCA-INA test in the elderly after 12 weeks of supplementation.
- There is an effect of gambier catechin (Uncaria gambir Roxb) supplementation on decreasing the expression of APP, MAPT, TGF-β genes and increasing the expression of BDNF, IL-10 genes in the elderly after 12 weeks of supplementation.
- There is an effect of gambier catechin (Uncaria gambir Roxb) supplementation on decreasing plasma MDA levels in the elderly after 12 weeks of supplementation.
- Research Method Research Design: A randomized controlled trial (RCT) design will be used. Population and Sample:The target population for this study is the elderly aged 60 years and above with mild cognitive impairment (MoCA-INA score of 20-25) residing in Padang City, West Sumatra, Indonesia.
- Research Procedure
- Recruitment and Screening
- Participants will be recruited from community centers, senior citizen clubs, and public health facilities in Padang City.
- Eligibility criteria will include:
- Age 60 years and above
- Mild cognitive impairment (MoCA-INA score of 20-25)
- No history of neurological or psychiatric disorders
- No history of substance abuse or chronic medical conditions that may interfere with cognitive function
- Willingness to participate in the study and provide informed consent
- Baseline Assessments <!-- -->
- Demographic information will be collected.
- Cognitive function will be assessed using the Montreal Cognitive Assessment-Indonesia (MoCA-INA) test.
- Blood samples will be drawn for biochemical analysis, including plasma MDA levels.
- Genetic analysis will be conducted to assess the expression of APP, MAPT, BDNF, IL-10, and TGF-β genes.
- Intervention
- Participants will be randomly assigned to either the intervention or control group.
- The intervention group will receive gambier catechin supplementation (Uncaria gambir Roxb) at a daily dose of [Insert dosage] for 12 weeks.
- The control group will receive a placebo. d. Follow-up Assessments <!-- -->
- Cognitive function will be reassessed using the MoCA-INA test at 12 weeks.
- Blood samples will be drawn for biochemical analysis and genetic analysis as described in the baseline assessments.
- Data Analysis
- Descriptive statistics will be used to summarize demographic data, cognitive function scores, and biochemical parameters.
- Inferential statistics, including t-tests and ANOVA, will be used to compare the differences between the intervention and control groups.
- Correlation analysis will be conducted to examine the relationship between cognitive function, genetic expression, and plasma MDA levels.
- Ethical Considerations
- The study will be conducted in accordance with ethical principles and guidelines, including the Declaration of Helsinki.
- Informed consent will be obtained from all participants.
- Participant confidentiality will be maintained throughout the study.
- Any adverse events will be monitored and reported.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, investigator)
- Number of arms
- 2
- Model description
- Objective: This clinical trial aims to investigate the effects of gambir catechin supplementation on cognitive function, and plasma levels of APP, MAPT, BDNF, IL-10, TGF-beta, and MDA in the elderly. Research Design: A randomized controlled trial (RCT) design will be used. Population and Sample:The target population for this study is the elderly aged 60 years and above with mild cognitive impairment (MoCA-INA score of 20-25) residing in Padang City, West Sumatra, Indonesia. Intervention 1. Participants will be randomly assigned to either the intervention or control group. 2. The intervention group will receive gambier catechin supplementation (Uncaria gambir Roxb) at a daily dose of [224 mg] for 12 weeks. 3. The control group will receive a placebo.
| Arm | Type | Receives |
|---|---|---|
| Arm 1: Catechin Group Arm 2: Placebo Group | Placebo comparator | Dietary Supplement: catechin extracts (health food), Other: plaseboArm 1: Catechin Group. Participants in this group received one capsule of gambir catechin daily, with a dosage of 224 mg. Arm 2: Placebo Group. Participants in this group received one placebo capsule daily, with a dosage of 224 mg. |
| Effects of Gambier Catechin Supplementation on Cognitive Function, APP, MAPT, | Experimental | –Gambir purified with a minimum of 90% (+)-Catechin content. Dosage of 224 mg catechin per capsule, once daily. |
Who may qualify
- Ages
- 60 to 85 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- Age 60 years and above
- Mild cognitive impairment (MoCA-INA score of 20-25)
- No history of neurological or psychiatric disorders
- No history of substance abuse or chronic medical conditions that may interfere with cognitive function
- Willingness to participate in the study and provide informed consent
Key exclusion criteria (1 listed)
- Participants who did not take Catechin Capsules for two days in a row
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| catechin extracts (health food)Type of intervention: 1. Purified gambir ≥ 90% (+)-Catechin 2. Dosage of 224 mg catechin capsule, once daily 3. Dosage of 224 mg placebo capsule, once daily 4. Cognitive function was assessed using MoCA-Ina and gene markers APP, MAPT, BDNF, IL-10, TGF-Beta and MDA Plasma.\" | Dietary supplement | Arm 1: Catechin Group Arm 2: Placebo Group |
| plaseboDosage of 224 mg placebo per capsule, once daily. Cognitive function was assessed using the MoCA-Ina and biomarkers including APP, MAPT, BDNF, IL-10, TGF-Beta, and plasma MDA. | Other | Arm 1: Catechin Group Arm 2: Placebo Group |
Primary outcome
To determine the effect of gambir catechin (Uncaria gambir Roxb) supplementation on cognitive function using the MoCA-INA test in the elderly after 12 weeks of supplementation
Time frame: April to september 2024 ( 6 month)
scor MoCA: 20 to 25
To determine the effect of gambir catechin (Uncaria gambir Roxb) supplementation on the expression of APP, MAPT, BDNF, IL-10, and TGF-β genes in the elderly after 12 weeks of supplementation.
Time frame: April to september 2024 ( 6 month)
Gene expression was measured using PCR
To determine the effect of gambir catechin (Uncaria gambir Roxb) supplementation on plasma MDA levels in the elderly after 12 weeks of supplementation.
Time frame: April to september 2024 ( 6 month)
Plasma MDA levels, as a marker of lipid peroxidation, were measured using a UV-vis spectrophotometer and the TBARS assay
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 19 Sep 2024.
- Results publication: PubMed 33744591Baba Y, Kaneko T, Takihara T. Matcha consumption maintains attentional function following a mild acute psychological stress without affecting a feeling of fatigue: A randomized placebo-controlled study in young adults. Nutr Res. 2021 Apr;88:44-52. doi: 10.1016/j.nutres.2020.12.024. Epub 2021 Jan 2.
- Results publication: PubMed 33751906Baba Y, Inagaki S, Nakagawa S, Kaneko T, Kobayashi M, Takihara T. Effects of l-Theanine on Cognitive Function in Middle-Aged and Older Subjects: A Randomized Placebo-Controlled Study. J Med Food. 2021 Apr;24(4):333-341. doi: 10.1089/jmf.2020.4803. Epub 2021 Mar 22.
- Results publication: PubMed 27142448Ide K, Yamada H, Takuma N, Kawasaki Y, Harada S, Nakase J, Ukawa Y, Sagesaka YM. Effects of green tea consumption on cognitive dysfunction in an elderly population: a randomized placebo-controlled study. Nutr J. 2016 May 4;15(1):49. doi: 10.1186/s12937-016-0168-7.
- Results publication: PubMed 32957612Baba Y, Inagaki S, Nakagawa S, Kaneko T, Kobayashi M, Takihara T. Effect of Daily Intake of Green Tea Catechins on Cognitive Function in Middle-Aged and Older Subjects: A Randomized, Placebo-Controlled Study. Molecules. 2020 Sep 17;25(18):4265. doi: 10.3390/molecules25184265.
- Related InfoLink provided by the sponsor.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Nur Indrawati Lipoeto, Profesor principal investigator
Andalas University
2 sites in 2 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing catechin extracts (health food) and plasebo in people with Elderly Individuals Aged 60 Years or Older and Mild Cognitive Impairment (MCI), run by Rahmi Novita Yusuf at 2 sites in 2 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 5 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 19 Sep 2024. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 2 sites in Fiji, Indonesia. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
To determine the effect of gambir catechin (Uncaria gambir Roxb) supplementation on cognitive function using the MoCA-INA test in the elderly after 12 weeks of supplementation (time frame: April to september 2024 ( 6 month)). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT06604390, which also lists 4 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 19 Sep 2024.