Objective: To assess the efficacy and safety of rupatadine (RUP) oral solution in children between 6 and 11 years with PER.
Methods: A randomized, double-blind, multicenter and placebo-controlled study was carried out in 34 centres in Argentina, South Africa, Hungary and Spain. Main selection criteria included patients between 6-11 years diagnosed as PER according to ARIA criteria, with a positive prick test, weight ≥ 16 kg and a basal nasal symptoms score (rhinorrhea, nasal blockage, sneezing and nasal itching assessment) ≥ 24 obtained in 4 days prior 2-weeks. Patients were allocated to RUP oral solution (1 mg/ml) or placebo during 6 weeks. The dose was adjusted by body weight. The efficacy endpoint was the change from baseline of the nasal and global symptoms score at 4 and 6 weeks of treatment.Results: A total of 445 patients were screened, of which 360 were finally included. Table 1 summarizes the efficacy results:
Parameter |
Placebo (n=180) |
Rupatadine (n= 180) |
P-value |
4TSS baseline |
7.2 (1.1) |
7.2 (1.1) |
ns |
Change 4TSS vs baseline at 4 weeks |
-2.5 (1.9) |
-3.1 (2.1) |
P= 0.018 |
% of reduction at 4 weeks |
34.7% |
43.1% |
|
Change 4TSS vs baseline at 6 weeks |
-2.7( 1.9) |
-3.3 (2.1) |
P= 0.048 |
% of reduction at 6 weeks |
37.5% |
45.8% |
|
Adverse events were scarce in both treatment groups throughout the study. ECGs (QTc) and lab tests did not show any relevant finding.
Conclusions: Rupatadine oral solution was significantly more effective than placebo in reducing nasal symptoms at 4 and 6 weeks. Rupatadine was well tolerated, without differences in somnolence between both groups. This is the first clinical evidence of a H1-receptor antagonist efficacy in children with PER.