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Comparison of the Treatment for Moderate to Severe Allergic Rhinitis: INCS, INCS with 10 mg desloratadine, and INCS with 20 mg desloratadine

Efficacy of Intranasal Corticosteroid Alone Versus Combination With Desloratadine 10 mg or 20 mg in Moderate-to-Severe Allergic Rhinitis: A Randomized Controlled Trial

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
TCTR
Registry ID
TCTR20261007012
Enrollment
177
Registered
2026-10-07
Start date
2026-11-16
Completion date
Unknown
Last updated
2026-10-05

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

Conditions

Moderate-to-severe allergic rhinitis Rhinitis, Allergic

Interventions

Participants will receive intranasal fluticasone furoate 110 mcg/day combined with a matching oral placebo for the first 2 weeks, followed by intranasal fluticasone furoate alone until the end of the
Intranasal corticosteroid (fluticasone furoate) plus placebo,Intranasal corticosteroid (fluticasone furoate) plus desloratadine 10 mg,Intranasal corticosteroid (fluticasone furoate) plus desloratadine

Sponsors

Faculty of Medicine Vajira Hospital, Navamindradhiraj University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1 Adults aged over 18 years. 2 Diagnosed with moderate to severe allergic rhinitis based on ARIA guideline (VAS >= 5) (confirmed by a positive skin prick test or serum specific IgE) 3 Unresponsive to INCS alone after a minimum of 2 weeks of treatment. 4 Able to provide informed consent.

Exclusion criteria

Exclusion criteria: 1 History of sinus surgery or turbinate surgery 2 Pregnant or breastfeeding women. 3 Presence of autoimmune diseases. 4 Patients with a history of hypersensitivity to desloratadine or corticosteroids. - Presence of nasal polyps or other structural nasal abnormalities such as septal deviation - Concurrent respiratory infections

Design outcomes

Primary

MeasureTime frame
Change in Total Nasal Symptom Score (TNSS) from baseline Baseline and Week 4 TNSS nasal obstruction nasal discharge sneezing and nasal itching each symptom scored 0 to 3 total score 0 to 12—

Secondary

MeasureTime frame
Change in Rcq36, VAS, ESS Baseline and Week 4 Rcq36, VAS, ESS—

Countries

Thailand

Contacts

Public Contactnathnicha kittipibul

vajira hsopital

nathnicha0863@gmail.com02 244 3000

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Oct 17, 2026