NCT04429737

Brief Summary

The purpose of this study is to determine whether the freshwater clam extract and its combination is effective on the improvement of glucose and lipid metabolism, also evaluate its ability to postpone prediabetes patients to become diabetes.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
180

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Mar 2017

Longer than P75 for not_applicable

Geographic Reach
1 country

2 active sites

Status
unknown

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

March 1, 2017

Completed
3.2 years until next milestone

First Submitted

Initial submission to the registry

May 5, 2020

Completed
1 month until next milestone

First Posted

Study publicly available on registry

June 12, 2020

Completed
1.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2022

Completed
Last Updated

June 12, 2020

Status Verified

May 1, 2020

Enrollment Period

5 years

First QC Date

May 5, 2020

Last Update Submit

June 10, 2020

Conditions

Keywords

PrediabetesGlucose Metabolism DisordersMetabolic DiseasesClam protein capsulesClam peptideClam amino capsulesclam extract

Outcome Measures

Primary Outcomes (14)

  • Assessment of the change in lipid profile relative to baseline

    Assessment of the change in Total Cholesterol(mg/dL), Triglyceride(mg/dL), low density lipoprotein (mg/dL) relative to baseline

    3 months

  • Assessment of the change in lipid profile relative to baseline

    Assessment of the change in Total Cholesterol(mg/dL), Triglyceride(mg/dL), low density lipoprotein (mg/dL) relative to baseline

    6 months

  • Assessment of the change in inflammation index relative to baseline

    Assessment of the change in TNF-alpha (pg/ml) and hs-CRP(pg/ml) relative to baseline

    3 months

  • Assessment of the change in inflammation index relative to baseline

    Assessment of the change in TNF-alpha (pg/ml) and hs-CRP(pg/ml) relative to baseline

    6 months

  • Assessment of the change in HbA1C (%) relative to baseline

    Assessment of the change in HbA1C (%) relative to baseline

    3 months

  • Assessment of the change in HbA1C (%) relative to baseline

    Assessment of the change in HbA1C (%) relative to baseline

    6 months

  • Assessment of the change in fasting glucose (mg/dl) relative to baseline

    Assessment of the change in fasting glucose (mg/dl) relative to baseline

    3 months

  • Assessment of the change in fasting glucose (mg/dl) relative to baseline

    Assessment of the change in fasting glucose (mg/dl) relative to baseline

    6 months

  • Assessment of the change in liver function relative to baseline

    Assessment of the change in ALT (U/L) and AST(U/L) relative to baseline

    3 months

  • Assessment of the change in liver function relative to baseline

    Assessment of the change in ALT (U/L) and AST(U/L) relative to baseline

    6 months

  • Assessment of the change in renal function relative to baseline

    Assessment of the change in Bun(mg/dL),Uric acid(mg/dL) and Creatinine(mg/dL) relative to baseline

    3 months

  • Assessment of the change in renal function relative to baseline

    Assessment of the change in Bun(mg/dL), Uric acid(mg/dL) and Creatinine(mg/dL) relative to baseline

    6 months

  • Assessment of the change in Albumin (g/L) relative to baseline

    Assessment of the change in Albumin (g/L) relative to baseline

    3 months

  • Assessment of the change in Albumin (g/L) relative to baseline

    Assessment of the change in Albumin (g/L) relative to baseline

    6 months

Study Arms (2)

Experimental

EXPERIMENTAL

The prediabetes patients in this arm will receive Clam protein capsules or Clam peptide plus Chlorella capsules with a dose for 2g/d (500mg/capsule, 2 capsules/time, 2 times/day at day and night ) for 6 months.

Dietary Supplement: clam protein capsulesDietary Supplement: Clam peptide plus Chlorella capsules

placebo

PLACEBO COMPARATOR

The prediabetes patients in this arm will receive placebo with similar appearance of Clam protein capsules or Clam peptide plus Chlorella capsules.

Dietary Supplement: Placebo

Interventions

clam protein capsulesDIETARY_SUPPLEMENT

The prediabetes patients in this arm will receive Clam protein capsules with a dose for 2g/d (500mg/capsule, 2 capsules/time, 2 times/day at day and night ) for 6 months ( Blood draw every 3 months) . After taking tested substance 6 months, the prediabetes patients will be continuous tracked for 3 years and be blood drawed every 6 months.

Experimental

The prediabetes patients in this arm will receive Clam peptide plus Chlorella capsules with a dose for 2g/d (500mg/capsule, 2 capsules/time, 2 times/day at day and night ) for 6 months ( Blood draw every 3 months) . After taking tested substance 6 months, the prediabetes patients will be continuous tracked for 3 years and be blood drawed every 6 months.

Experimental
PlaceboDIETARY_SUPPLEMENT

The prediabetes patients in this arm will receive Placebo with a dose for 2g/d (500mg/capsule, 2 capsules/time, 2 times/day at day and night ) for 6 months ( Blood draw every 3 months) . After taking tested substance 6 months, the prediabetes patients will be continuous tracked for 3 years and be blood drawed every 6 months.

placebo

Eligibility Criteria

Age25 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Agree to cooperate in the trial and sign the written informed consent
  • Age 25-70 years
  • Glucose AC between 100-125 mg/dL
  • HbA1c between 5.7%\~6.4%
  • Total Cholesterol≧160mg/dL or LDL-C≧100mg/dL Remark: Meet one of the (3)\~(5) conditions is acceptable

You may not qualify if:

  • Pregnant and lactating women
  • Poor medication compliance
  • Abnormal liver function patients (ALT and AST value\> 2 folds of normal value upper limit )
  • Abnormal renal function patients (creatinine value\>1.5 mg/dL)
  • Abnormal gastrointestinal function patients (eg. gastrostomy, enterostomy, and diarrhea)
  • Sever comorbidity in the last 6 months. (eg. Brain stroke, myocardial infarction, and major trauma and surgery)
  • Using influence blood sugar, blood pressure, and blood lipid drugs (eg sex hormones, corticosteroids, H2 blockers, diuretics and Statin )
  • Diabetes patients
  • Other sever diseases ( malignant tumor and alzheimer's disease)
  • With inflammatory diseases, infectious disease, and severe immune deficiency ( eg. tuberculosis, AIDS, active pneumonia, systemic lupus erythematosus and rheumatoid arthritis)
  • Other influence blood sugar endocrine disease (eg. Hyperthyroidism, Acromegaly, Cushing's syndrome and Pheochromocytoma)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Center for traditional chinese medicine, Chang Gung Memorial Hospital

Gueishan Township, Taoyuan County, 33378, Taiwan

Location

TSE-HUNG HUANG MD PhD

Keelung, 204, Taiwan

Location

MeSH Terms

Conditions

Prediabetic StateMetabolic DiseasesGlucose Metabolism Disorders

Condition Hierarchy (Ancestors)

Diabetes MellitusNutritional and Metabolic DiseasesEndocrine System Diseases

Study Officials

  • TSE-HUNG HUANG, MD PhD

    Chang Gung Memorial Hospital

    PRINCIPAL INVESTIGATOR

Study Design

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

Study Record Dates

First Submitted

May 5, 2020

First Posted

June 12, 2020

Study Start

March 1, 2017

Primary Completion

March 1, 2022

Study Completion

March 1, 2022

Last Updated

June 12, 2020

Record last verified: 2020-05

Locations