A Randomized Controlled Trial on the Effect of Yeast ß-Glucan on the Improvement of Upper Respiratory Tract Infection Symptoms in Children

Status

Active, not recruiting

Phases

Phase 4

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2500099828

Enrollment

Unknown

Registered

2025-03-31

Start date

2025-04-10

Completion date

Unknown

Last updated

2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Prevent infection of respiratory system

Interventions

Yeast dextran with YingYangBao(YYB) intervention group:Yeast dextran with YingYangBao

Yeast dextran intervention group:Yeast dextran

YingYangBao(YYB) intervention group:YingYangBao

Control Group:None

Eligibility

Sex/Gender

All

Age

3 Years to 4 Years

Inclusion criteria

Inclusion criteria: 1: Children over 3 years old, under 4 years old, with normal physical development;

Exclusion criteria

Exclusion criteria: 1: Children with disablities,congenitaldiseases, a histony of food alergies, gastrointestinalinfectious diseases, and other immune related diseases were excluded from this study;

Design outcomes

Primary

Measure	Time frame
Red blood cell count;lgG;slgA;IgE;IFN-Y;IFN-a;IL-6;IL-10;CRP;Hemoglobin;Leukocyte;Differential Leukocyte Count;Platelet;Lymphocyte;	—

Countries

China

Contacts

Public ContactJiyong Yin

National Institute for Nutrition and Health,China CDC

yinjy@ninh.chinacdc.cn+86 10 6623 7211

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026