DiabetesPhase 4NCT01911663
The Effect of Korean Red Ginseng Supplementation on Glucose Control
A Phase 4 study testing KRG in people with Diabetes, run by Yonsei University at 1 site in South Korea.
Trial summary
This study is a randomized, double-blind, placebo-controlled clinical trial designed to evaluate the effect of Korean red ginseng supplementation on glucose control in subjects with impaired fasting glucose, impaired glucose tolerance or newly-diagnosed type 2 Diabetes Mellitus and to establish a clinical evidence on… Read more about this study
- Who is it for?
- Ages 20 to 70 yearsHealthy volunteers can take part
- Conditions the study is for
- Diabetes
- What is being tested?
- KRG
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 60 participants
- Where
- 1 siteSouth Korea
- Study dates
- Nov 2011to Mar 2012
- Phase
- Phase 4
- 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 20 to 70 years
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- subjects with IFG (100 mg/dL ≤ fasting blood glucose ≤ 125mg/dL), IGT (140mg/dL ≤ 2-h OGTT), or newly-diagnosed T2DM (fasting glucose ≥ 126 mg/dL) were enrolled in this study.
Who cannot join
- Exclusion criteria that all selected patients met were: 1) Taking glucose-lowering medications or having insulin injections. 2) Chronic alcoholism or having an evidence or alcoholism. 3) Pregnant or in breast feeding. 4) Having chronic gastrointestinal disorders. 5) Showing signs of nutrient deficiency of malnutrition. 6) Patients with serious kidney problems. 7) Patients with serious liver problems. 8) Patients whose job could be a threat when hypoglycemia occurs. 9) Patients who have experienced the complications such as headache, insomnia, heart palpitations and raised blood pressure after eating red ginseng. 10) Other patients
Trial locations and contacts
1 site in 1 country.
South Korea1 site
Laboratory of clinical Nutrigenetics/Nutrigenomic
Seoul, 120-749
About this study
Official title: The Effect of Korean Red Ginseng Supplementation on Glucose Control in Subjects With Impaired Fasting Glucose, Impaired Glucose Tolerance or Newly-diagnosed Type 2 Diabetes Mellitus
This study is a randomized, double-blind, placebo-controlled clinical trial designed to evaluate the effect of Korean red ginseng supplementation on glucose control in subjects with impaired fasting glucose, impaired glucose tolerance or newly-diagnosed type 2 Diabetes Mellitus and to establish a clinical evidence on glucose control effect of KRG.
Read the detailed description
Study participants, who were all aged between 20 and 70, were recruited from health checkup center at Ilsan hospital (Gyeonggi-do, Korea) and the advertisements in local newspaper. After the glucose screening test, subjects with IFG (100 mg/dL ≤ fasting blood glucose ≤ 125mg/dL), IGT (140mg/dL ≤ 2-h OGTT), or newly-diagnosed T2DM (fasting glucose ≥ 126 mg/dL) were enrolled in this study. Exclusion criteria that all selected patients met were: 1) Taking glucose-lowering medications or having insulin injections. 2) Chronic alcoholism or having an evidence or alcoholism. 3) Pregnant or in breast feeding. 4) Having chronic gastrointestinal disorders. 5) Showing signs of nutrient deficiency of malnutrition. 6) Patients with serious kidney problems. 7) Patients with serious liver problems. 8) Patients whose job could be a threat when hypoglycemia occurs. 9) Patients who have experienced the complications such as headache, insomnia, heart palpitations and raised blood pressure after eating red ginseng. 10) Other patients who were considered unsuitable for this study by the researchers
This study was designed for 12-week randomized, double-blinded, placebo-controlled trial. Sixty subjects were randomly assigned to receive placebo (corn starch) or 500 mg KRG. Both group consumed 10 capsules per day, three times daily after breakfast (3 capsules), lunch (3 capsules) and dinner (4 capsules), and it comes to total 5.0g daily. Red ginseng and placebo capsules were provided by the Korea Ginseng Cooperation (KGC, Daejeon, Korea).
Subjects met with the investigational team at four different time points: Screening (Week -1), randomization and treatment baseline (Week 0), treatment midpoint (Week 6), and treatment endpoint (Week 12). Daily intake by 24-hour recall method and physical activity were measured at baseline (Week 0), midpoint (Week 6), and endpoint (Week 12) of the treatment period. Compliance with study restrictions and capsule consumption was monitored via daily documentation by subjects on individualized study calendars and end-study count of returned capsules.
- Conditions
- Diabetes
- Being tested
- KRG, Placebo
- Medical subject headings
- Diabetes Mellitus
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
KRGDietary supplement
500 mg Korea red ginseng (KRG)
PlaceboDietary supplement
500 mg placebo
| Study group | Role | What they receive |
|---|---|---|
| KRG | Experimental | 500 mg Korea red ginseng (KRG) Receives: Dietary Supplement: KRG |
| Placebo | Placebo comparator | 500 mg placebo (corn starch) Receives: Dietary Supplement: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
change from baseline in glucose
Measured: 12 week
Secondary outcomes (2)
change from baseline in insulin
Measured: 12 week
change from baseline in C-peptide
Measured: 12 week
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted30 Jul 2013 (estimated)
- Study startNov 2011
- Primary completionFeb 2012
- Study completionMar 2012
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for DiabetesStudies of the same condition, open and under way.
- More trials run by Yonsei UniversityThe sponsor's other registered studies.
- 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 4
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 60 participants (actual)
Sponsor and investigators
- Lead sponsor
- Yonsei University
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01911663
- Sponsor's protocol ID
- KGC-CKJ-PC
- Status last verified
- Jul 2013
- First submitted
- 26 Jul 2013
- Last updated
- 30 Jul 2013
- Results posted
- No
- Data monitoring committee
- Yes
Study at a glance
From the registry record, last updated by the sponsor on 30 Jul 2013. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Effect of Korean Red Ginseng Supplementation on Glucose Control in Subjects With Impaired Fasting Glucose, Impaired Glucose Tolerance or Newly-diagnosed Type 2 Diabetes Mellitus
- ClinicalTrials.gov ID
- NCT01911663
- Acronym / sponsor ID
- KGC-CKJ-PC
- Conditions
- Diabetes
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 60 participants (actual)
- Lead sponsor
- Yonsei UniversityUniversity, hospital or other
- Study start
- Nov 2011
- Primary completion
- Feb 2012 (actual)
- Study completion
- Mar 2012 (actual)
- First posted
- 30 Jul 2013 (estimated)
- 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.
This study is a randomized, double-blind, placebo-controlled clinical trial designed to evaluate the effect of Korean red ginseng supplementation on glucose control in subjects with impaired fasting glucose, impaired glucose tolerance or newly-diagnosed type 2 Diabetes Mellitus and to establish a clinical evidence on glucose control effect of KRG.
Detailed description
Study participants, who were all aged between 20 and 70, were recruited from health checkup center at Ilsan hospital (Gyeonggi-do, Korea) and the advertisements in local newspaper. After the glucose screening test, subjects with IFG (100 mg/dL ≤ fasting blood glucose ≤ 125mg/dL), IGT (140mg/dL ≤ 2-h OGTT), or newly-diagnosed T2DM (fasting glucose ≥ 126 mg/dL) were enrolled in this study. Exclusion criteria that all selected patients met were: 1) Taking glucose-lowering medications or having insulin injections. 2) Chronic alcoholism or having an evidence or alcoholism. 3) Pregnant or in breast feeding. 4) Having chronic gastrointestinal disorders. 5) Showing signs of nutrient deficiency of malnutrition. 6) Patients with serious kidney problems. 7) Patients with serious liver problems. 8) Patients whose job could be a threat when hypoglycemia occurs. 9) Patients who have experienced the complications such as headache, insomnia, heart palpitations and raised blood pressure after eating red ginseng. 10) Other patients who were considered unsuitable for this study by the researchers
This study was designed for 12-week randomized, double-blinded, placebo-controlled trial. Sixty subjects were randomly assigned to receive placebo (corn starch) or 500 mg KRG. Both group consumed 10 capsules per day, three times daily after breakfast (3 capsules), lunch (3 capsules) and dinner (4 capsules), and it comes to total 5.0g daily. Red ginseng and placebo capsules were provided by the Korea Ginseng Cooperation (KGC, Daejeon, Korea).
Subjects met with the investigational team at four different time points: Screening (Week -1), randomization and treatment baseline (Week 0), treatment midpoint (Week 6), and treatment endpoint (Week 12). Daily intake by 24-hour recall method and physical activity were measured at baseline (Week 0), midpoint (Week 6), and endpoint (Week 12) of the treatment period. Compliance with study restrictions and capsule consumption was monitored via daily documentation by subjects on individualized study calendars and end-study count of returned capsules.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| KRG | Experimental | Dietary Supplement: KRG500 mg Korea red ginseng (KRG) |
| Placebo | Placebo comparator | Dietary Supplement: Placebo500 mg placebo (corn starch) |
Who may qualify
- Ages
- 20 to 70 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (1 listed)
- subjects with IFG (100 mg/dL ≤ fasting blood glucose ≤ 125mg/dL), IGT (140mg/dL ≤ 2-h OGTT), or newly-diagnosed T2DM (fasting glucose ≥ 126 mg/dL) were enrolled in this study.
Key exclusion criteria (1 listed)
- Exclusion criteria that all selected patients met were: 1) Taking glucose-lowering medications or having insulin injections. 2) Chronic alcoholism or having an evidence or alcoholism. 3) Pregnant or in breast feeding. 4) Having chronic gastrointestinal disorders. 5) Showing signs of nutrient deficiency of malnutrition. 6) Patients with serious kidney problems. 7) Patients with serious liver problems. 8) Patients whose job could be a threat when hypoglycemia occurs. 9) Patients who have experienced the complications such as headache, insomnia, heart palpitations and raised blood pressure after eating red ginseng. 10) Other patients
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 |
|---|---|---|
| KRG500 mg Korea red ginseng (KRG) | Dietary supplement | KRG |
| Placebo500 mg placebo | Dietary supplement | Placebo |
Primary outcome
change from baseline in glucose
Time frame: 12 week
2 secondary outcomes
change from baseline in insulin
Time frame: 12 week
change from baseline in C-peptide
Time frame: 12 week
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 30 Jul 2013.
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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.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing KRG in people with Diabetes, run by Yonsei University at 1 site in South Korea.
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 1 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 30 Jul 2013. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in South Korea. 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.
What does this phase mean?
Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
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?
change from baseline in glucose (time frame: 12 week). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 30 Jul 2013; AzTrials last refreshed its copy on 7 Nov 2026.