Effect of SugarLock® Peanut Skin Extract on Postprandial Blood Glucose Control

NCT07705191 | Recruiting

• 1 other identifier: A-ER-115-167
• Study Type: interventional
• Target: 30
• Locations: 1 country
• Sites: 1

Brief Summary

The objective of this study is to investigate the effects of pre-meal supplementation with SugarLock® peanut skin extract and white kidney bean extract on reducing or delaying postprandial blood glucose elevation and glycemic fluctuations, and to evaluate their potential as nutritional supplements for postprandial glycemic management.

Conditions

Blood Sugar (Glucose) Control; Postprandial Glucose

Keywords

SugarLock; peanut skin extract; postprandial glycemic regulation

Outcome Measures

Primary Outcomes (1)

• Interstitial fluid glucose level (mg/dL)

  Postprandial glucose responses will then be continuously monitored by continuous glucose monitoring system (CGM) for 3 hours

  at 3 hours after eating white rice

Study Arms (3)

Blank control

PLACEBO COMPARATOR

consume 150 mL water 15 minutes before eating white rice containing 50 g of carbohydrates

Dietary Supplement: Water

SugarLock® peanut skin extract

EXPERIMENTAL

consume two SugarLock® peanut skin extract capsules (200 mg/capsule) with 150 mL water 15 minutes before eating white rice containing 50 g of carbohydrates

Dietary Supplement: Peanut skin extract

White kidney bean extract

ACTIVE COMPARATOR

consume two White kidney bean extract capsules (250 mg/capsule) with 150 mL water 15 minutes before eating white rice containing 50 g of carbohydrates

Dietary Supplement: White kidney bean extract

Interventions

Peanut skin extract DIETARY_SUPPLEMENT

consume two peanut skin extract capsules (200 mg/capsule) with 150 mL water

Also known as: SugarLock®

SugarLock® peanut skin extract

White kidney bean extract DIETARY_SUPPLEMENT

consume two White kidney bean extract capsules (250 mg/capsule) with 150 mL water

White kidney bean extract

Water DIETARY_SUPPLEMENT

consume 150 mL water

Blank control

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Adults aged 18 years or older;
• Fasting blood glucose level \< 100 mg/dL;
• Individuals without type 1 or type 2 diabetes.

You may not qualify if:

• Women who are pregnant, breastfeeding, or planning to become pregnant during the study period;
• Individuals with chronic gastrointestinal diseases (such as irritable bowel syndrome \[IBS\], inflammatory bowel disease \[IBD\], chronic diarrhea, celiac disease, short bowel syndrome, ulcers, colorectal cancer, etc.), a history of epilepsy or seizures, psychiatric disorders, malignant tumors, endocrine disorders, liver or kidney disease, or other major organic diseases;
• Individuals with a history of gastrointestinal surgery or organ transplantation;
• Individuals who have taken medications or supplements affecting blood glucose or insulin within the past three months;
• Individuals allergic to peanuts or white kidney beans;
• Full-time employees in the same department as the principal investigator, and students directly taught by the principal investigator during the current semester.

Sponsors & Collaborators

• TCI Co., Ltd.: lead

Study Sites (1)

Chang Jung Christian University

Tainan, 711301, Taiwan

RECRUITING

MeSH Terms

Interventions

Water

Intervention Hierarchy (Ancestors)

Hydroxides; Alkalies; Inorganic Chemicals; Anions; Ions; Electrolytes; Oxides; Oxygen Compounds

Study Officials

• Fang-Pei Chen

  Chang Jung Christian University

  PRINCIPAL INVESTIGATOR

Central Study Contacts

Fang-Pei Chen, Ph.D.

CONTACT

+886-06-2785123; fpchen@mail.cjcu.edu.tw

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: CROSSOVER
• Sponsor Type: INDUSTRY
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: July 9, 2026
• First Posted: July 15, 2026
• Study Start: July 9, 2026
• Primary Completion (Estimated): September 30, 2026
• Study Completion (Estimated): October 31, 2026
• Last Updated: July 15, 2026

Record last verified: 2026-07

Locations

TW (1)