Skip to content

The study on effect of standardized Gynostemma pentaphyllum extract tea on blood glucose level in pre-diabetes volunteers

The study on effect of standardized Gynostemma pentaphyllum extract tea on blood glucose level in pre-diabetes volunteers

Status
Active, not recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
TCTR
Registry ID
TCTR20210401004
Enrollment
62
Registered
2021-04-01
Start date
2023-07-18
Completion date
Unknown
Last updated
2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

prediabetes diagnosis pre-diabetes, Gynostemma pentaphyllum , glucose level, insulin level

Interventions

31 volunteers will be randomized to receive GP tea at daily dose of 800 mg/day (400 mg / sachet, twice a day, 30 min before meal) for 12 weeks, consecutively.,31 volunteers will be randomized to recei
Experimental Dietary Supplement,Placebo Comparator No treatment
GP extract tea,placebo tea

Sponsors

The Center of Excellence on Environmental Health and Toxicology (EHT)
Lead Sponsor

Eligibility

Sex/Gender
All
Age
40 Years to 70 Years

Inclusion criteria

Inclusion criteria: 1. Thai male or female aged between 40-70 years. 2. subjects with prediabetes diagnosis determined by fasting plasma glucose between 100-125 mmol/dL and HbA1C from 5.7% to 6.4%. 3. subjects who agree to continue with current diet and refrain from taking any other dietary supplements during the study. 4. subjects who agree to continue the regularly exercising and normal physical activity level during study period.

Exclusion criteria

Exclusion criteria: 1. Current daily use of any oral hypoglycemic drugs or insulin injection. 2. Elevated liver enzymes or abnormal renal function at baseline. 3. Current daily use of drug-induced glucose alterations (e.g. prednisolone). 4. Pregnancy or lactation.

Design outcomes

Primary

MeasureTime frame
Blood glucose level pre-dose and post-dose at week 4, 8, 12 and follow up visit at month 3 and 6 Fasting Plasma glucose,Blood glucose level pre-dose and post-dose at week 4, 8, 12 and follow up visit at month 3 and 6 HbA1c,Insulin level pre-dose and post-dose at week 4, 8, 12 and follow up visit at month 3 and 6 Fasting plasma insulin,Insulin secretion and insulin resistance 30, 60, 90 and 120 minutes at pre-dose and post-dose (week 12) and follow up visit at month 3, 6 Oral glucose tolerance test (OGTT)

Secondary

MeasureTime frame
Liver enzymes pre-dose and post-dose at week 4, 8, 12 and follow up visit at month 3 and 6 ALT, AST,Kidney function pre-dose and post-dose at week 4, 8, 12 and follow up visit at month 3 and 6 S-creatinine, S-BUN,Lipid profiles pre-dose and post-dose at week 4, 8, 12 and follow up visit at month 3 and 6 Triglyceride, Cholesterol, HDL, LDL

Countries

Thailand

Contacts

Public ContactJutamaad Satayavivad

Chulabhorn Research Institute

jutamaad@cri.or.th025538555

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026