NCT06592365

Brief Summary

This study was conducted to investigate the effects of green tea extracts on reducing blood glucose level

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
84

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Aug 2022

Typical duration for not_applicable

Geographic Reach
1 country

3 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

August 8, 2022

Completed
2 years until next milestone

First Submitted

Initial submission to the registry

August 20, 2024

Completed
1 month until next milestone

First Posted

Study publicly available on registry

September 19, 2024

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2024

Completed
Last Updated

September 19, 2024

Status Verified

August 1, 2024

Enrollment Period

2.4 years

First QC Date

August 20, 2024

Last Update Submit

September 9, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Change in fasting glucose level

    blood glucose level detection

    Baseline, week 12

Secondary Outcomes (4)

  • changes of indicator of lipid metabolism

    Baseline, week 12

  • OGTT

    Baseline, week 12

  • blood biomarkers

    Baseline, week 12

  • change in waist circumference(cm)

    Baseline, week 12

Study Arms (2)

GTE (Green tea extract)

ACTIVE COMPARATOR

three tablets once daily

Dietary Supplement: GTE

Placebo

PLACEBO COMPARATOR

three tablets once daily

Dietary Supplement: Placebo

Interventions

GTEDIETARY_SUPPLEMENT

oral administration of GTE tablets once daily for 12 weeks

GTE (Green tea extract)
PlaceboDIETARY_SUPPLEMENT

oral administration of placebo tablets once daily for 12 weeks

Placebo

Eligibility Criteria

Age19 Years - 64 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Males and females aged between 19 to 64 years
  • BMI between 18.5 and 29.9kg/m²
  • fasting blood glucose between 100 and 139 mg/dL (Note: if some subjects with blood glucose range of 126 - 139 mg/dL, those who are taking or requre medication must be excluded to meet ethical standards.)
  • subjects who voluntarily decide to participate in this study and sign the informed consent form.

You may not qualify if:

  • Individuals taking to obesity, dyslipidemia, or uncontrolled hypertension at the screening
  • Individuals diagnosed with diabetes and who have taken medications related to blood glucose
  • Individuals congenital enzyme deficiencies related to sugar metabolism.
  • with hypersensitivity to the test food or ingredients(e.g., green tea, caffeine).
  • Individuals ongoing treatment diseases significantly related glucose metabolism.
  • Individuals with a history of surgery significantly related to glucose metabolism within the last 6 months
  • diagnosed with gastrointestinal diseases, cardiovascular diseases, uncontrolled chronic medical conditions, thyroid disorders, or active malignant tumors requiring medication
  • Individuals with liver function impairment or acute or chronic hepatitis or liver cirrhosis
  • Individuals with renal disorder
  • Individuals with a weight change of 5 kg or more within the last 3 months.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

Kangbuk samsung hospital

Seoul, South Korea

RECRUITING

Seoul National Universtiy Hospital

Seoul, South Korea

COMPLETED

The Catholic University of Korea St. Vincent's Hospital

Seoul, South Korea

COMPLETED

Study Officials

  • Jae-Heon Kang, MD, PhD

    Kangbuk Samsung Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
OTHER
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 20, 2024

First Posted

September 19, 2024

Study Start

August 8, 2022

Primary Completion

December 31, 2024

Study Completion

December 31, 2024

Last Updated

September 19, 2024

Record last verified: 2024-08

Locations