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The Role of *Streptococcus parasanguinis* B in Allergen-Specific Immunotherapy for Pediatric Allergic Rhinitis and Its Potential as a Novel Biomarker

The Role of *Streptococcus parasanguinis* B in Allergen-Specific Immunotherapy for Pediatric Allergic Rhinitis and Its Potential as a Novel Biomarker

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2600122448
Enrollment
Unknown
Registered
2026-04-14
Start date
2026-05-01
Completion date
Unknown
Last updated
2026-04-20

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

Conditions

Allergic Rhinitis

Interventions

Children with allergic rhinitis:none
control group:none

Sponsors

Fujian Children's Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
5 Years to 12 Years

Inclusion criteria

Inclusion criteria: 1. Children with allergic rhinitis: (1) Aged 5–12 years, with allergic rhinitis; (2) Serum house dust mite-specific IgE level greater than grade 3; (3) No prior history of allergen immunotherapy (AIT); (4) Meet the indications for AIT; (5) Voluntarily participate in the study and comply with the relevant assessments. 2. Control Group: (1) Age between 5-12 years; (2) No history of allergic rhinitis or any allergic diseases (such as asthma, atopic dermatitis, food/drug allergies) confirmed through detailed health inquiry and physical examination; (3) Negative results in serum allergen screening (such as dust mite-specific IgE); (4) Stable vital signs, growth and development within the normal range for children of the same age; (5) Legal guardian voluntarily signs the informed consent form, and the child is willing to cooperate with the study tests.

Exclusion criteria

Exclusion criteria: 1. Children with allergic rhinitis: (1) Use of antibiotics, prebiotics, probiotics, or synbiotics within the past month; (2) Presence of chronic gastrointestinal disorders, including inflammatory bowel disease, celiac disease, and irritable bowel syndrome; (3) Acute gastroenteritis or antibiotic-associated diarrhea within the past 4 weeks; (4) History of gastrointestinal surgery (e.g., gastrectomy, bowel resection); (5) Biliary tract diseases; (6) Coexisting allergic diseases, such as asthma or atopic dermatitis; (7) Any other serious conditions, including metabolic diseases, malignancies, autoimmune diseases, or immunodeficiencies; (8) Discontinuation of the intervention during the study period. 2. Control Group: (1) Use of antibiotics, prebiotics, probiotics, or synbiotics in the past month; (2) History of chronic gastrointestinal diseases, including inflammatory bowel disease, celiac disease, irritable bowel syndrome, etc.; (3) Acute gastroenteritis or antibiotic-associated diarrhea in the past 4 weeks; (4) History of gastrointestinal surgery (such as partial gastrectomy or intestinal resection); (5) Any serious chronic disease such as bile duct disease, metabolic disease, malignant tumor, autoimmune disease, or immunodeficiency; (6) Other conditions that the investigator judges may interfere with the evaluation of study results (such as recent acute infections) or affect the safety of the subjects.

Design outcomes

Primary

MeasureTime frame
Total Nasal Symptom Score; gut microbiota;Nasopharyngeal microbiota;

Secondary

MeasureTime frame
cytokines;blood eosinophil;sIgG4;tIgE;

Countries

China

Contacts

Public ContactYanling Chen

Fujian Children's Hospital

chenyanling_333@163.com+86 591 8611 2223

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Apr 23, 2026