Anti-inflammatory H1 Antihistamines Allergic Rhinitis

Status Completed

Clinical Trial Summary

The main purpose of the treatment of persistent allergic rhinitis is to improve symptoms and patients' quality of life and prevent the development of asthma. Therapeutic strategies also target a reduction of pro-inflammatory mediators released from activated cells, including mast cells and epithelial cells. The presence of allergic inflammation in nasal mucosa may increase the risk of asthma occurrence, especially in patients with persistent allergic rhinitis. H1 antihistamines are widely recommended in all types of allergic rhinitis, regardless of symptom severity or persistence. They control all of the symptoms, but to a lesser extent nasal congestion. New generation agents, such as levocetirizine and desloratadine, possess anti-inflammatory properties, reducing allergic inflammation.

Clinical Trial Description

Allergic rhinitis is characterized by a chronic inflammation of nasal mucosa and represents a risk factor for asthma occurrence. H1 antihistamines reduce the rhinitis' symptoms, but some compounds may have anti-inflammatory properties.

We evaluated the plasmatic level of some cytokines in patients with persistent allergic rhinitis (PAR) and their evolution after 4-week treatment with H1 antihistamines and the risk of asthma after 1.5 year.

Eighty-five patients with PAR and 30 healthy volunteers were included in the study. The patients with PAR were randomly divided into 2 groups: 41 patients treated with desloratadine 5 mg/day and 44 patients under levocetirizine 5 mg/day for 4 weeks.

The clinical evaluation include the presence and severity of allergic rhinitis' symptoms: rhinorrhea, nasal congestion, sneezing, nasal and ocular itching and duration of the disease.

Each symptom was evaluated on scale from 0 to 3 (0=absent, 1=mild, 2=moderate, 3=severe) and after that we calculated the total symptoms score (TSS).

A TSS<6 means a mild rhinitis, while a TSS> 6 represented a moderate severe one.

The patients were clinically evaluated after 1.5 year to determine the possible onset of bronchial asthma.

The biological evaluation means determination of total IgE and plasmatic level of IL-1 beta, IL-6, IL-8 and TNF alpha.

Clinical and biological evaluation were performed before and after treatment ;

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT02507635
Study type	Interventional
Source	Iuliu Hatieganu University of Medicine and Pharmacy
Contact
Status	Completed
Phase	Phase 4
Start date	February 2009
Completion date	May 2013

View Details

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.