miRNA-155 Assay Before and After Immunotherapy and Probiotics

MicroRNA-155 Assay in Childhood Allergic Rhinitis Before and After Combined Sublingual Immunotherapy and Probiotics

The investigators aimed to explore miRNA-155 change in response to sublingual immunotherapy (SLIT), probiotics and combined treatment with SLIT and probiotics in AR children.

Study Overview

• Status: Completed
• Conditions: Allergic Rhinitis
• Intervention / Treatment: Drug: Lacteol fort; Drug: Standardized Timothy Grass Pollen; Drug: Lacteol fort and Standardized Timothy Grass Pollen

Detailed Description

Allergic rhinitis (AR) is an inflammatory state characterized by a disturbance of immunoregulatory mechanisms that leads to an amplified T helper "Th-2" response. Micro-RNAs (miRNAs) are short single-stranded RNA molecules that post transcriptionally control gene expression and can mediate allergic process. The aim of this study was to explore miRNA-155 change in response to sublingual immunotherapy (SLIT), probiotics and combined treatment with SLIT and probiotics in AR children.

• Study Type: Interventional
• Enrollment (Actual): 45
• Phase: Phase 4

Contacts and Locations

Study Locations

• Egypt
  • Sharkia
    • Zagazig, Sharkia, Egypt, 44519
      • Zagazig University

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 3 years to 16 years (Child, Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Children aged 5-18 years
• Diagnosed as having AR
• With positive skin test to grass pollen

Exclusion Criteria:

• Anatomical abnormalities of upper respiratory tract,
• Previous immunotherapy,
• Clinically significant inflammatory diseases,
• Malignancies,
• Chronic treatment with systemic corticosteroids or immune suppressive drugs

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Other
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

3

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Probiotic Group; consisted of 15 cases who received probiotics only. A drug called Lacteol fort (Rameda Company) . A sachet was taken once daily for three months. Each sachet contains 10 billions lactobacilli.	Drug: Lacteol fort; Lacteol fort is a drug containing lactobacilli
Experimental: SLIT Group; included 15 children who received SLIT for 6 months. Standardized Timothy Grass Pollen (Phleum pratense)	Drug: Standardized Timothy Grass Pollen; SLIT includes 2 phases build up and maintenance phases. (Jubilant HollisterStier LLC 14110 Collections Drive, Chicago USA) .
Experimental: Combined treatment Group; included 15 children who received probiotics and SLIT. A drug called Lacteol fort was administered A sachet was taken once daily for 3 months . Standardized Timothy Grass Pollen was taken for 6 months	Drug: Lacteol fort and Standardized Timothy Grass Pollen; Lacteol fort is a drug containing lactobacilli and the Standardized Timothy Grass Pollen includes 2 phases build up and maintenance phases.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Total nasal symptom score between before and after treatment	Total Nasal Symptom Score was evaluated for the three groups at the start of the study and after 6 months. TNSS is the sum of scores for each of nasal obstruction, sneezing, nasal itching, and rhinorrhea at each time point, by means of a four-point scale (0-3) . TNSS is estimated by addition of the score for each of the symptoms to a total out of 12	6 months

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Serum miR-155 expression at the start and end of the study	Serum miR-155 expression was measured for the three groups by quantitative real time PCR	6 months

Collaborators and Investigators

• Sponsor: Zagazig University
• Investigators: Study Chair: Randa Sedeek, Medical Microbiology and Immunology

Publications and helpful links

General Publications

• Livak KJ, Schmittgen TD. Analysis of relative gene expression data using real-time quantitative PCR and the 2(-Delta Delta C(T)) Method. Methods. 2001 Dec;25(4):402-8. doi: 10.1006/meth.2001.1262.
• Cox L. Sublingual immunotherapy and allergic rhinitis. Curr Allergy Asthma Rep. 2008 Apr;8(2):102-10. doi: 10.1007/s11882-008-0019-5.

Study record dates

Study Major Dates

• Study Start (Actual): September 1, 2018
• Primary Completion (Actual): March 10, 2019
• Study Completion (Actual): May 1, 2019

Study Registration Dates

• First Submitted: October 11, 2020
• First Submitted That Met QC Criteria: October 20, 2020
• First Posted (Actual): October 26, 2020

Study Record Updates

• Last Update Posted (Actual): October 29, 2020
• Last Update Submitted That Met QC Criteria: October 27, 2020
• Last Verified: October 1, 2020

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Infections; Respiratory Tract Infections; Respiratory Tract Diseases; Immune System Diseases; Hypersensitivity, Immediate; Otorhinolaryngologic Diseases; Respiratory Hypersensitivity; Hypersensitivity; Nose Diseases; Rhinitis; Rhinitis, Allergic; Molecular Mechanisms of Pharmacological Action; Gastrointestinal Agents; Antacids; Calcium Carbonate
• Other Study ID Numbers: miR-155 in allergic rhinitis

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No