NCT04886752

Brief Summary

To evaluate the difference between vitamin C in the form of oral liposomes and general vitamin C in a fixed period of time in plasma and urine.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
11

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Jun 2019

Geographic Reach
1 country

1 active site

Status
completed

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

June 10, 2019

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 9, 2020

Completed
7 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2020

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

May 9, 2021

Completed
5 days until next milestone

First Posted

Study publicly available on registry

May 14, 2021

Completed
Last Updated

May 14, 2021

Status Verified

May 1, 2021

Enrollment Period

1 year

First QC Date

May 9, 2021

Last Update Submit

May 13, 2021

Conditions

Outcome Measures

Primary Outcomes (6)

  • vitamin c detection

    vitamin c was assessed by Ascorbic Acid Colorimetric Assay Kit II

    at 8 hours after taking test sample

  • The change of Triglyceride

    Venous blood was sampled to measure concentrations of Triglyceride

    at 8 hours after taking test sample

  • The change of body mass index (BMI)

    BMI is a measurement of a person's leanness or corpulence based on their height and weight, and is intended to quantify tissue mass.The body mass index (BMI, kg/m\^2) and body mass (kg) were assessed by InBody770.

    Time 0, 0.5, 1, 2, 3, 4, and 8 hours after taking test sample

  • The change of aspartate aminotransferase

    Venous blood was sampled to measure concentrations of aspartate aminotransferase

    at 8 hours after taking test sample

  • The change of alanine aminotransferase

    Venous blood was sampled to measure concentrations of alanine aminotransferase

    at 8 hours after taking test sample

  • The change of creatine

    Venous blood was sampled to measure concentrations of creatine

    at 8 hours after taking test sample

Study Arms (3)

vitamin C without liposome

SHAM COMPARATOR

vitamin C without liposome

Dietary Supplement: vitamin C without liposome

liposomal process A vitamin C

PLACEBO COMPARATOR

liposomal process A vitamin C

Dietary Supplement: liposomal process A vitamin C

liposomal process B vitamin C (Double Nutri™)

EXPERIMENTAL

liposomal process B vitamin C (Double Nutri™)

Dietary Supplement: liposomal process B vitamin C (Double Nutri™)

Interventions

vitamin C without liposomeDIETARY_SUPPLEMENT

subjects need to take 3 tests during trail. After each test was completed, a washout period of 14 days was required before the next test start

vitamin C without liposome

subjects need to take 3 tests during trail. After each test was completed, a washout period of 14 days was required before the next test start

liposomal process A vitamin C

subjects need to take 3 tests during trail. After each test was completed, a washout period of 14 days was required before the next test start

liposomal process B vitamin C (Double Nutri™)

Eligibility Criteria

Age20 Years - 60 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Adults between 20-60 years old,
  • No heart, liver, kidney, endocrine and major organic diseases

You may not qualify if:

  • Renal insufficiency and dialysis
  • Cancer
  • Underweight (BMI≦17) or obese (BMI≧27),
  • Take chronic disease drugs,
  • Blood pressure systolic blood pressure ≧130 mmHg or diastolic blood pressure ≧85 mmHg,
  • Too high fasting blood glucose ≧ 100 mg/dL,
  • Triglyceride ≧ 150 mg/dL,Total cholesterol ≧ 200 mg/dL,
  • Have a history of vitamin C allergy,
  • People with mental illness,
  • Pregnant or breastfeeding women,
  • Hematosis,
  • Kidney stones,
  • Long-term vitamin C supplements (at least 200 mg per day for more than one month)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Research & Design Center, TCI CO., Ltd

Taipei, 114, Taiwan

Location

MeSH Terms

Conditions

Ascorbic Acid Deficiency

Interventions

Ascorbic AcidLiposomes

Condition Hierarchy (Ancestors)

AvitaminosisDeficiency DiseasesMalnutritionNutrition DisordersNutritional and Metabolic Diseases

Intervention Hierarchy (Ancestors)

Sugar AcidsAcids, AcyclicCarboxylic AcidsOrganic ChemicalsHydroxy AcidsCarbohydratesMembranes, ArtificialBiomedical and Dental MaterialsDrug CarriersDosage FormsPharmaceutical PreparationsManufactured MaterialsTechnology, Industry, and AgricultureBiomimetic Materials

Study Officials

  • Jaw-Shiun Tsai, Doctor

    National Taiwan University Hospital

    PRINCIPAL INVESTIGATOR

Study Design

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

Study Record Dates

First Submitted

May 9, 2021

First Posted

May 14, 2021

Study Start

June 10, 2019

Primary Completion

June 9, 2020

Study Completion

December 31, 2020

Last Updated

May 14, 2021

Record last verified: 2021-05

Locations