BACKGROUND: The main aim of specific immunotherapy is sustained effect due to changes in the immune system that can be demonstrated only in long-term trials. OBJECTIVE: To investigate sustained efficacy and disease modification in a 5-year double-blind, placebo-controlled trial, including 2 years of blinded follow-up after completion of a 3-year period of treatment, with the SQ-standardized grass allergy immunotherapy tablet, Grazax (Phleum pratense 75,000 SQ-T/2,800 BAU,(∗) ALK, Denmark) or placebo. METHODS: A randomized, double-blind, placebo-controlled, multinational, phase III trial included adults with a history of moderate-to-severe grass pollen-induced allergic rhinoconjunctivitis, with or without asthma, inadequately controlled by symptomatic medications. Two hundred thirty-eight participants completed the trial. End points included rhinoconjunctivitis symptom and medication scores, combined scores, asthma symptom and medication scores, quality of life, days with severe symptoms, immunologic end points, and safety parameters. RESULTS: The mean rhinoconjunctivitis daily symptom score was reduced by 25% to 36% (P ≤ .004) in the grass allergy immunotherapy tablet group compared with the placebo group over the 5 grass pollen seasons covered by the trial. The rhinoconjunctivitis DMS was reduced by 20% to 45% (P ≤ .022 for seasons 1-4; P = .114 for season 5), and the weighted rhinoconjunctivitis combined score was reduced by 27% to 41% (P ≤ .003) in favor of active treatment. The percentage of days with severe symptoms during the peak grass pollen exposure was in all seasons lower in the active group than in the placebo group, with relative differences of 49% to 63% (P ≤ .0001). Efficacy was supported by long-lasting significant effects on the allergen-specific antibody response. No safety issues were identified. CONCLUSION: The results confirm disease modification by SQ-standardized grass allergy immunotherapy tablet in addition to effective symptomatic treatment of allergic rhinoconjunctivitis.
BACKGROUND: The main aim of specific immunotherapy is sustained effect due to changes in the immune system that can be demonstrated only in long-term trials. OBJECTIVE: To investigate sustained efficacy and disease modification in a 5-year double-blind, placebo-controlled trial, including 2 years of blinded follow-up after completion of a 3-year period of treatment, with the SQ-standardized grass allergy immunotherapy tablet, Grazax (Phleum pratense 75,000 SQ-T/2,800 BAU,(∗) ALK, Denmark) or placebo. METHODS: A randomized, double-blind, placebo-controlled, multinational, phase III trial included adults with a history of moderate-to-severe grass pollen-induced allergic rhinoconjunctivitis, with or without asthma, inadequately controlled by symptomatic medications. Two hundred thirty-eight participants completed the trial. End points included rhinoconjunctivitis symptom and medication scores, combined scores, asthma symptom and medication scores, quality of life, days with severe symptoms, immunologic end points, and safety parameters. RESULTS: The mean rhinoconjunctivitis daily symptom score was reduced by 25% to 36% (P ≤ .004) in the grass allergy immunotherapy tablet group compared with the placebo group over the 5 grass pollen seasons covered by the trial. The rhinoconjunctivitis DMS was reduced by 20% to 45% (P ≤ .022 for seasons 1-4; P = .114 for season 5), and the weighted rhinoconjunctivitis combined score was reduced by 27% to 41% (P ≤ .003) in favor of active treatment. The percentage of days with severe symptoms during the peak grass pollen exposure was in all seasons lower in the active group than in the placebo group, with relative differences of 49% to 63% (P ≤ .0001). Efficacy was supported by long-lasting significant effects on the allergen-specific antibody response. No safety issues were identified. CONCLUSION: The results confirm disease modification by SQ-standardized grass allergy immunotherapy tablet in addition to effective symptomatic treatment of allergic rhinoconjunctivitis.
Authors: Carlos E Baena-Cagnani; Désirée Larenas-Linnemann; Alvaro Teijeiro; Giorgio Walter Canonica; Giovanni Passalacqua Journal: Curr Allergy Asthma Rep Date: 2013-12 Impact factor: 4.806
Authors: Guy W Scadding; Moises A Calderon; Mohamed H Shamji; Aarif O Eifan; Martin Penagos; Florentina Dumitru; Michelle L Sever; Henry T Bahnson; Kaitie Lawson; Kristina M Harris; Audrey G Plough; Joy Laurienzo Panza; Tielin Qin; Noha Lim; Nadia K Tchao; Alkis Togias; Stephen R Durham Journal: JAMA Date: 2017-02-14 Impact factor: 56.272
Authors: Jörg Kleine-Tebbe; Mikkel Walmar; Klaus Bitsch-Jensen; Elke Decot; Oliver Pfaar; Dolores Hernández Fernández de Rojas; Fernando Rodriguez Journal: Clin Drug Investig Date: 2014-08 Impact factor: 2.859