Completed

A 8 Weeks, Randomized, Double-blind, Placebo-controlled Human Trial to Evaluate the Efficacy and Safety of Nokyong Mixture Extract(CME-PI) on Promotion of Immunity

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What is being tested

Nokyong Mixture Extract(CME-PI)

+ Placebo

Dietary Supplement
Who is being recruted

Over 50 Years
See all eligibility criteria
How is the trial designed

Prevention Study

Placebo-Controlled
Interventional
Study Start: March 2019
See protocol details

Summary

Principal SponsorChonbuk National University Hospital
Last updated: January 28, 2026
Sourced from a government-validated database.Claim as a partner

Study start date: March 6, 2019

Actual date on which the first participant was enrolled.

This study was a 8 weeks, randomized, double-blind, placebo-controlled human trial. 80 subjects were randomly divided into Nokyong Mixture Extract(CME-PI) group or placebo group. The investigators measured Natural Killer cell activity, Cytokines(IL-2, IL-12, IFN-γ, TNF-α), questionnaire scores of upper airway infection.

Official TitleA 8 Weeks, Randomized, Double-blind, Placebo-controlled Human Trial to Evaluate the Efficacy and Safety of Nokyong Mixture Extract(CME-PI) on Promotion of Immunity
NCT04010331
Principal SponsorChonbuk National University Hospital
Last updated: January 28, 2026
Sourced from a government-validated database.Claim as a partner

Protocol

This section provides details of the study plan, including how the study is designed and what the study is measuring.
Design Details

80 patients to be enrolled

Total number of participants that the clinical trial aims to recruit.

Prevention Study

Prevention studies aim to stop a disease from developing. They often involve people at risk and test things like vaccines, lifestyle changes, or preventive medications.



Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Criteria

Any sex

Biological sex of participants that are eligible to enroll.

Over 50 Years

Range of ages for which participants are eligible to join.

Healthy volunteers allowed

If individuals who are healthy and do not have the condition being studied can participate.

Criteria

Inclusion Criteria: * Adult men and women over 50 years * After fully hearing and fully understanding this clinical trials, those who agree to voluntarily decide to participate and to comply with the notice Exclusion Criteria: * If screening shows that the white blood cell(WBC) is less than 3000/㎕ or more than 8000/㎕ * Those who received influenza vaccination within 3 months before the screening * Those who have a body mass index(BMI) of less than 18.5 kg / m\^2 or greater than 35 kg / m\^2 at the screening * Those who have a clinically significant acute or chronic cardiovascular system, endocrine system, immune system, respiratory system, liver biliary system, kidney and urinary system, neuropsychiatry, musculoskeletal system, inflammatory and hematologic * Those who take a medication or health function food that affects your promotion of immunity within 1 month prior to the screening * Those who have received antipsychotic medication within 3 months before screening * Those who alcoholic or drug abuse suspected * Those who participated in other clinical trials within 3 months before screening * Laboratory test by show the following results * Aspartate Transaminase(AST), Alanine Transaminase(ALT) \> Reference range 3 times upper limit * Serum Creatinine \> 2.0 mg/dL * Pregnancy or breast feeding * Those who doesn't accept the implementation of appropriate contraception of a childbearing woman * Principal Investigator judged inappropriate for participation in study because of Laboratory test result, etc.

Study Plan

Find out more about all the medication administered in this study, their detailed description and what they involve.
Treatment Groups
Study Objectives

2 intervention groups are designated in this study

50% chance of being blinded to the placebo group

Treatment Groups

Group I

Experimental
2 times a day, 2 capsule for 1 time, after breakfast/dinner meal(1.4g/day, Nokyong Mixture Extract(CME-PI) 1 g/day)

Group II

Placebo
2 times a day, 2 capsule for 1 time, after breakfast/dinner meal(1.4g/day, Nokyong Mixture Extract(CME-PI) 0 g/day)

Study Objectives

Primary Objectives

Secondary Objectives

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.

This study has 1 location

Suspended

Clinical Trial Center for Functional Foods Chonbuk National University Hospital

Jeonju, South KoreaOpen Clinical Trial Center for Functional Foods Chonbuk National University Hospital in Google Maps
CompletedOne Study Center
A 8 Weeks, Randomized, Double-blind, Placebo-controlled Human Trial to Evaluate the Efficacy and Safety of Nokyong Mixture Extract(CME-PI) on Promotion of Immunity | PatLynk