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Efficacy and Safety of Levocetirizine 8 Weeks Prior and After the Onset of the Grass Pollen Season in Subjects With SAR

Evaluation of the Efficacy and Safety of Levocetirizine During 8 Weeks Preceding and Following the Anticipated Onset of the Grass Pollen Season in Subjects Suffering From Seasonal Allergic Rhinitis Associated With Pollen-induced Asthma

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00521040
Enrollment
459
Registered
2007-08-27
Start date
2004-02-29
Completion date
2004-07-31
Last updated
2013-12-12

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

Conditions

Rhinitis, Allergic, Seasonal

Keywords

Levocetirizine dihydrochloride, Xyzal tablets

Brief summary

Efficacy and Safety of Levocetirizine 8 Weeks Prior and After the Onset of the Grass Pollen Season in Subjects With SAR

Interventions

Sponsors

UCB Pharma
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE

Eligibility

Sex/Gender
ALL
Age
12 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* male or female subjects ≥ 12 years * 2 year history of seasonal allergic rhinitis * documented hypersensitivity to local seasonal allergens (grass pollen) * documented pollen-induced asthma * without acute ongoing exacerbation of asthma or allergic rhinitis * no continuous ongoing treatment for rhinitis or asthma

Exclusion criteria

* non-allergic rhinitis and anatomic abnormalities disturbing the analysis of nasal capacity * symptomatic rhinitis or asthma due to tree pollens * currently treated by specific grass pollen immunotherapy * suffering from non-allergic asthma * chronic use of inhaled steroids and/or long acting β2 agonists; and/or corticosteroid dependent asthma * atopic dermatitis or urticaria requiring an antihistamine treatment or the administration of oral or topical corticosteroids * contraindication for salbutamol use

Design outcomes

Primary

MeasureTime frame
T4SS (sum of the scores of the severity of sneezing, rhinorrhea, nasal pruritus and ocular pruritus)12 weeks

Secondary

MeasureTime frame
Pollen-induced symptomatology of asthma; symptoms of rhinitis and asthma over the first 4 season weeks and during the entire observation period following the actual onset of the grass pollen season12 weeks

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026