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RecruitingNCT05738655Updated Feb 23, 2024

Effectiveness of Pumpkin Seed Extract on Improving Blood Sugar Level in Subhealth Subjects

An interventional study of Pumpkin seed extract (Low dose) and Pumpkin seed extract (High dose) in Diabetes and Metabolic Disease, sponsored by Greenyn Biotechnology Co., Ltd.. Recruiting at 1 site in Taiwan. Open to participants aged 20 Years to 75 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-02-23.

Sponsored by Greenyn Biotechnology Co., Ltd. · Not applicable, Interventional, and Prevention

From the registry’s dates

  • Primary completion was expected by Sep 2024, 2 years ago, but the record still lists the study as recruiting.
  • Started Mar 2023; still recruiting 3 years 7 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
60
Allocation
Randomized
Ages
20 Years to 75 Years
Sex
All
01

Study summary

This randomized, double-blind, placebo-controlled, and parallel clinical study aims to investigate the effectivness of a pumpkin seed extract on blood sugar management in subhealth people.

02

Conditions studied

  • Diabetes
  • Metabolic Disease

Browse trials for

03

In context

Metabolic Diseases

997 studies on the registry are indexed under Metabolic Diseases; 234 are open to participants now.

This study's planned enrollment of 60 is above the median of 48 across 670 interventional studies indexed under Metabolic Diseases.

Browse Metabolic Diseases studies →

Lead sponsor

Greenyn Biotechnology Co., Ltd. is the lead sponsor of 4 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
20 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Fasting blood sugar levels from 100 to 125 mg/dL
  • Glycated hemoglobin levels from 5.7 to 6.4%
  • 2-hour OGTT levels from 140 to 199 mg/dL

Exclusion criteria

Exclusion Criteria:

  • Pregnant women or preparing for pregnancy.
  • Lactating women.
  • Women gave birth 6 months before the study.
  • Poor kindy funciton
  • Severe cardiovascular or other chronic diseases
  • Patients with type I or II diabetes
  • Poor compliance
  • Alcohol abuser
  • Using anti-diabetic or weight managent supplements
  • Blood transfusion three months before the study
  • Pumpkin seed allergy
05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
60 participants (estimated)

Study arms

  • Placebo comparator
    Placebo group

    Placebo capsule, one capsule/day (300 mg/day) for 3 months

    Dietary Supplement: Placebo

  • Experimental
    Low dose

    Pumpkin seed extract capsule, one capsule/day (300 mg/day) for 3 months

    Dietary Supplement: Pumpkin seed extract (Low dose)

  • Experimental
    High dose

    Pumpkin seed extract capsule, two capsules/day (600 mg/day) for 3 months

    Dietary Supplement: Pumpkin seed extract (High dose)

Interventions

  • Dietary supplementPumpkin seed extract (Low dose)

    Pumpkin seed extract standardized with specific peptides (300 mg/day)

  • Dietary supplementPumpkin seed extract (High dose)

    Pumpkin seed extract standardized with specific peptides (600 mg/day)

  • Dietary supplementPlacebo

    Placeo (300 mg/day)

06

What researchers measure

Primary outcomes

  1. Biochemical analysis

    Changes in fasting blodd sugar levels of 60 pariticpants will be analyzed between baseline and week 12.

    Time frame: Baseline up to 12 weeks

  2. Biochemical analysis

    Changes in glycosylated hemoglobin levels of 60 pariticpants will be analyzed between baseline and week 12.

    Time frame: Baseline up to 12 weeks

  3. Biochemical analysis

    Changes in insulin levels of 60 pariticpants will be analyzed between baseline and week 12.

    Time frame: Baseline up to 12 weeks

  4. Biochemical analysis

    Changes in incremental area under the curve for glucose for 60 pariticpants will be analyzed between baseline and week 12.

    Time frame: Baseline up to 12 weeks

  5. Hormone analysis

    Changes in GLP-1 levels of 60 pariticpants will be analyzed between baseline and week 12.

    Time frame: Baseline up to 12 weeks

  6. Hormone analysis

    Changes in DPP4 levels of 60 pariticpants will be analyzed between baseline and week 12.

    Time frame: Baseline up to 12 weeks

  7. Hormone analysis

    Changes in adiponectin levels of 60 pariticpants will be analyzed between baseline and week 12.

    Time frame: Baseline up to 12 weeks

07

Study locations

1 of 1 sites recruiting
  • WanFang Hospital
    Taipei, 116, Taiwan
    • Ming-Shun Wu, MD · Contact · mswu@tmu.edu.tw · +886-229307930
    • Ming-Shun Wu, MD · Principal investigator
    Recruiting
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 23, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT05738655
Lead sponsor
Greenyn Biotechnology Co., Ltd.
Collaborators
Taipei Medical University
Responsible party
Sponsor
First posted
Feb 22, 2023
Start date
Mar 1, 2023
Primary completion
Sep 30, 2024 (estimated)
Completion
Oct 31, 2024 (estimated)
Last update
Feb 23, 2024

Study contacts

Ming-Shun Wu, MD
Contact
mswu@tmu.edu.tw
+886-229307930
Ming-Shun Wu, MD
principal investigator · WanFang Hospital

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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