TY - JOUR AU - Wright C. AU - Marks G. AU - Jenkins C. AU - Guo M. AU - Wark P. AU - Gibson P. AU - Peters M. AU - Reddel H. AU - Upham J. AU - Hew M. AU - Gillman A. AU - Sutherland M. AU - Bowden J. AU - Thien F. AU - Rimmer J. AU - Katsoulotos G. AU - Cook M. AU - Yang I. AU - Katelaris C. AU - Bowler S. AU - Langton D. AU - Bint M. AU - Yozghatlian V. AU - Burgess S. AU - Sivakumaran P. AU - Yan K. AU - Kritikos V. AU - Baraket M. AU - Aminazad A. AU - Robinson P. AU - Jaffe A. AU - Powell H. AU - McDonald V. AB -

BACKGROUND: Omalizumab (Xolair) dosing in severe allergic asthma is based on serum IgE and bodyweight. In Australia, patients eligible for omalizumab but exceeding recommended ranges for IgE (30-1500 IU/mL) and bodyweight (30-150 kg) may still receive a ceiling dose of 750 mg/4 weeks. 62% of patients receiving government-subsidised omalizumab are enrolled in the Australian Xolair Registry (AXR). OBJECTIVES: To determine if AXR participants above the recommended dosing ranges benefit from omalizumab, and to compare their response to within-range participants. METHODS: Data were stratified according to dose-range status (above or within-range). Further sub-analyses were conducted according to the reason for being above the dosing range (IgE only versus IgE and weight). RESULTS: Data for 179 participants were analyzed. 55 (31%) were above recommended dosing criteria; other characteristics were similar to within-range participants. Above-range participants had higher baseline IgE [812 (IQR 632, 1747) IU/ml vs 209 (IQR 134, 306) IU/ml], and received higher doses of omalizumab [750 (IQR 650, 750) mg] compared to within-range participants [450 (IQR, 300, 600) mg]. At 6 months, improvements in Juniper 5-item Asthma Control Questionnaire (ACQ-5, 3.61 down to 2.01 for above-range, 3.47 down to 1.93 for within-range, p < 0.0001 for both) and Asthma Quality of Life Questionnaire (AQLQ mean score (3.22 up to 4.41 for above-range, 3.71 up to 4.88 for within-range, p < 0.0001) were observed in both groups. Forced expiratory volume in one second (FEV1 ) improved among above-range participants. There was no difference in response between above-range and within-range participants. Above-range participants due to either IgE alone or IgE and weight had similar improvements in ACQ-5, AQLQ and FEV1 . CONCLUSIONS & RELEVANCE: Patients with severe allergic asthma above recommended dosing criteria for omalizumab have significantly improved symptom control, quality of life, and lung function to a similar degree to within-range participants, achieved without dose escalation above 750 mg. This article is protected by copyright. All rights reserved.

AD - The Alfred Hospital & Monash University, Melbourne, VIC 3004.
Austin Hospital, Heidelberg, VIC 3084.
John Hunter Hospital, Hunter Medical Research Institute, University of Newcastle, New Lambton Heights, NSW 2305.
Flinders Medical Centre, Bedford Park, SA 5042.
Woolcock Institute of Medical Research, Glebe, NSW 2037.
Royal Prince Alfred Hospital, Camperdown, NSW 2050.
Concord Hospital, Concord, NSW 2138.
Liverpool Hospital, Liverpool, NSW 2170.
Box Hill Hospital, Box Hill, VIC 3128.
St Vincent's Clinic, Darlinghurst, NSW 2010.
St George Specialist Centre, Kogarah, NSW 2217.
Canberra Hospital, WODEN, ACT 2606.
The Prince Charles Hospital, Chermside, QLD 4032.
Campbelltown Hospital, Campbelltown, NSW 2560.
Mater Adult Hospital, South Brisbane, QLD 4101.
Frankston Hospital, Frankston, VIC 3199.
Nambour Hospital, QLD 4560.
St George Hospital, Kogarah, NSW 2217.
QLD Children's Lung and Sleep Specialists, Woolloongabba, QLD 4102.
Gold Coast District Hospital, Southport, QLD 4215.
Children's Hospital at Westmead, Westmead, NSW 2145.
School of Women's & Children's Health, UNSW Medicine, UNSW Australia, NSW 2031.
Princess Alexandra Hospital, Woolloongabba, QLD 4102. AN - 27377155 BT - Clin Exp AllergyClinical and Experimental Allergy CN - [IF]: 5.587 DP - NLM ET - 2016/07/06 LA - Eng LB - AUS
RSP
FY17 M1 - 11 N1 - Hew, Mark
Gillman, Andrew
Sutherland, Michael
Wark, Peter
Bowden, Jeff
Guo, Michael
Reddel, Helen K
Jenkins, Christine
Marks, Guy B
Thien, Frank
Rimmer, Janet
Katsoulotos, Gregory P
Cook, Matthew
Yang, Ian
Katelaris, Constance
Bowler, Simon
Langton, David
Wright, Craig
Bint, Michael
Yozghatlian, Veronica
Burgess, Scott
Sivakumaran, Pathmanathan
Yan, Kwok Y
Kritikos, Vicky
Peters, Matthew
Baraket, Melissa
Aminazad, Ali
Robinson, Paul
Jaffe, Adam
Powell, Heather
Upham, John W
McDonald, Vanessa M
Gibson, Peter G
Clin Exp Allergy. 2016 Jul 5. doi: 10.1111/cea.12774. N2 -

BACKGROUND: Omalizumab (Xolair) dosing in severe allergic asthma is based on serum IgE and bodyweight. In Australia, patients eligible for omalizumab but exceeding recommended ranges for IgE (30-1500 IU/mL) and bodyweight (30-150 kg) may still receive a ceiling dose of 750 mg/4 weeks. 62% of patients receiving government-subsidised omalizumab are enrolled in the Australian Xolair Registry (AXR). OBJECTIVES: To determine if AXR participants above the recommended dosing ranges benefit from omalizumab, and to compare their response to within-range participants. METHODS: Data were stratified according to dose-range status (above or within-range). Further sub-analyses were conducted according to the reason for being above the dosing range (IgE only versus IgE and weight). RESULTS: Data for 179 participants were analyzed. 55 (31%) were above recommended dosing criteria; other characteristics were similar to within-range participants. Above-range participants had higher baseline IgE [812 (IQR 632, 1747) IU/ml vs 209 (IQR 134, 306) IU/ml], and received higher doses of omalizumab [750 (IQR 650, 750) mg] compared to within-range participants [450 (IQR, 300, 600) mg]. At 6 months, improvements in Juniper 5-item Asthma Control Questionnaire (ACQ-5, 3.61 down to 2.01 for above-range, 3.47 down to 1.93 for within-range, p < 0.0001 for both) and Asthma Quality of Life Questionnaire (AQLQ mean score (3.22 up to 4.41 for above-range, 3.71 up to 4.88 for within-range, p < 0.0001) were observed in both groups. Forced expiratory volume in one second (FEV1 ) improved among above-range participants. There was no difference in response between above-range and within-range participants. Above-range participants due to either IgE alone or IgE and weight had similar improvements in ACQ-5, AQLQ and FEV1 . CONCLUSIONS & RELEVANCE: Patients with severe allergic asthma above recommended dosing criteria for omalizumab have significantly improved symptom control, quality of life, and lung function to a similar degree to within-range participants, achieved without dose escalation above 750 mg. This article is protected by copyright. All rights reserved.

PY - 2016 SN - 1365-2222 (Electronic)
0954-7894 (Linking) SP - 1407 EP - 1415 T2 - Clin Exp AllergyClinical and Experimental Allergy TI - Real-life effectiveness of omalizumab in severe allergic asthma above the recommended dosing range criteria VL - 46 Y2 - FY17 ER -