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Completed

NCT Number: NCT03677921

A Clinical Trial of Bio-Germanium for the Evaluation of Efficacy on Immune Function

This study is a 8-week, randomized, double-blind, placebo-controlled clinical trial of Bio-Germanium for the evaluation of efficacy on immune function and immune cell activation.

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Key information

Age range

25 year–75 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Laboratory of Clinical Nutrigenetics/Nutrigenomics, Yonsei University.

Seoul, 03722, South Korea

About this study

This study will evaluate Bio-Germanium's efficacy on immune function and immune cell activation in healthy volunteers by assessing improvements in certain immune indices (i.e. NK cell activity, WBC, IFN-γ, TNF-α, IgG1, IgG2, IgM, IL-2, 6, 12).

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Healthy male and female volunteers between the ages of 25 to 75 years
  • Screening result for WBC counts in between 4,000 cells/ul and 8,000 cells/ul
  • Volunteers who have agreed to participate in the study and provided a written content by him/herself or through its legal representative

Exclusion criteria

  • Those under the treatment for clinically significant acute or chronic diseases in cardiovascular, immune, respiratory, liver, biliary, renal, urinary, nervous, musculoskeletal system as well as psychiatric, infectious, hematologic and neoplastic diseases (exceptions can be made under the discretion of the researcher)
  • Those with uncontrolled hypertension (140/90mmHg or higher, measured after 10 minutes of resting)
  • Those with uncontrolled diabetes (fasting blood glucose levels greater than 126mg/dl or those starting diabetes medication within 3 months)
  • Those received vaccination within 3 months before screening
  • Those with blood AST(GOT) or ALT(GPT) levels greater than 120IU/L
  • Those with blood creatinine level greater than 2.4mg/dL for male and 1.8mg/dL for female
  • Those who have consumed within 2 weeks before screening or are currently consuming health supplements that can affect immune function
  • Those under the severe gastrointestinal symptoms such as heartburn, indigestion, and such
  • Those who are pregnant, breastfeeding or planning to become pregnant during this study
  • Those who are oversensitive or allergic to the investigational product
  • Those who plan to participate in other researches during this study
  • Those who participated in other researches within 4 weeks of the start of this study
  • Those who are deemed inappropriate by the researcher

Treatment and study plan

Investigational Product (Bio-Germanium)

Dietary Supplement
  • Ingredient: Bio-Germanium
  • Type: HPMC capsule
  • Weight: 300mg/capsule
  • Directions: 2 capsules, twice a day (1.2g/day of Bio-Germanium)
  • Storage: Room temperature (below 25℃)
  • Duration of use: 8 weeks

Control Group - Placebo Product

Dietary Supplement
  • Ingredient: Corn starch
  • Type: HPMC capsule
  • Weight: 300mg/capsule
  • Directions: 2 capsules, twice a day
  • Storage: Room temperature (below 25℃)
  • Duration of use: 8 weeks

Primary outcomes

  1. WBC(White blood cell) Count

    Time frame: at 8 week

    WBC(White blood cell) Count

  2. NK(Natural killer) cell activity

    Time frame: at 8 week

    NK(Natural killer) cell activity

  3. Immune related indicator (IFN-γ, IL-2, 6, 12, TNF-α, IgG1, IgG2, IgM)

    Time frame: at 8 week

    Immune related indicator (IFN-γ, IL-2, 6, 12, TNF-α, IgG1, IgG2, IgM)

  4. Evaluation of improvement by the subjects themselves

    Time frame: at 8 week

    Evaluation of improvement by the subjects themselves (Excellent, Good, Unchanged, Worsening, Very aggravated / 5 Step)

Secondary outcomes

  1. Adverse reactions

    Time frame: at 8 week

    Number of Participants with Adverse reactions

  2. Body temperature

    Time frame: at 8 week

    Body temperature

Sponsors and collaborators

Lead sponsor

Yonsei University

Other

Registry information

Official study title

A Clinical Trial of Bio-Germanium for the Evaluation of Efficacy on Immune Function Enhancement and Immune Cell Activation

Acronym: NYG

Important dates

Study start
2017
Primary completion
2018
Study completion
2018
First posted
Sep 19, 2018
Registry last updated
Sep 20, 2018

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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