PMID- 24990880 OWN - NLM STAT- MEDLINE DCOM- 20150223 LR - 20140703 IS - 1946-6242 (Electronic) IS - 1946-6234 (Linking) VI - 6 IP - 243 DP - 2014 Jul 2 TI - Targeting membrane-expressed IgE B cell receptor with an antibody to the M1 prime epitope reduces IgE production. PG - 243ra85 LID - 10.1126/scitranslmed.3008961 [doi] AB - Elevated serum levels of both total and allergen-specific immunoglobulin E (IgE) correlate with atopic diseases such as allergic rhinitis and allergic asthma. Neutralization of IgE by anti-IgE antibodies can effectively treat allergic asthma. Preclinical studies indicate that targeting membrane IgE-positive cells with antibodies against M1 prime can inhibit the production of new IgE and significantly reduce the levels of serum IgE. We report results from two trials that investigated the safety, pharmacokinetics, and activity of quilizumab, a humanized monoclonal antibody targeting specifically the M1 prime epitope of membrane IgE, in subjects with allergic rhinitis (NCT01160861) or mild allergic asthma (NCT01196039). In both studies, quilizumab treatment was well tolerated and led to reductions in total and allergen-specific serum IgE that lasted for at least 6 months after the cessation of dosing. In subjects with allergic asthma who were subjected to an allergen challenge, quilizumab treatment blocked the generation of new IgE, reduced allergen-induced early and late asthmatic airway responses by 26 and 36%, respectively, and reduced allergen-induced increases in sputum eosinophils by ~50% compared with placebo. These studies indicate that targeting of membrane IgE-expressing cells with anti-M1 prime antibodies can prevent IgE production in humans. CI - Copyright (c) 2014, American Association for the Advancement of Science. FAU - Gauvreau, Gail M AU - Gauvreau GM AD - McMaster University, Hamilton, Ontario L8N 3Z5, Canada. FAU - Harris, Jeffrey M AU - Harris JM AD - Genentech Inc., South San Francisco, CA 94080, USA. harris.jeffrey@gene.com. FAU - Boulet, Louis-Philippe AU - Boulet LP AD - Institut Universitaire de Cardiologie et de Pneumologie de Quebec, Quebec, Quebec G1V 4G5, Canada. FAU - Scheerens, Heleen AU - Scheerens H AD - Genentech Inc., South San Francisco, CA 94080, USA. FAU - Fitzgerald, J Mark AU - Fitzgerald JM AD - University of British Columbia, Vancouver, British Columbia V5Z 1M9, Canada. FAU - Putnam, Wendy S AU - Putnam WS AD - Genentech Inc., South San Francisco, CA 94080, USA. FAU - Cockcroft, Donald W AU - Cockcroft DW AD - University of Saskatchewan, Saskatoon, Saskatchewan S7N 0W8, Canada. FAU - Davis, Beth E AU - Davis BE AD - University of Saskatchewan, Saskatoon, Saskatchewan S7N 0W8, Canada. FAU - Leigh, Richard AU - Leigh R AD - University of Calgary, Calgary, Alberta T2N 4Z6, Canada. FAU - Zheng, Yanan AU - Zheng Y AD - Genentech Inc., South San Francisco, CA 94080, USA. FAU - Dahlen, Barbro AU - Dahlen B AD - Karolinska University Hospital, Stockholm S-141 86, Sweden. FAU - Wang, Yehong AU - Wang Y AD - Genentech Inc., South San Francisco, CA 94080, USA. FAU - Maciuca, Romeo AU - Maciuca R AD - Genentech Inc., South San Francisco, CA 94080, USA. FAU - Mayers, Irvin AU - Mayers I AD - University of Alberta, Edmonton, Alberta T6G 2G3, Canada. FAU - Liao, X Charlene AU - Liao XC AD - Genentech Inc., South San Francisco, CA 94080, USA. FAU - Wu, Lawren C AU - Wu LC AD - Genentech Inc., South San Francisco, CA 94080, USA. FAU - Matthews, John G AU - Matthews JG AD - Genentech Inc., South San Francisco, CA 94080, USA. FAU - O'Byrne, Paul M AU - O'Byrne PM AD - McMaster University, Hamilton, Ontario L8N 3Z5, Canada. LA - eng SI - ClinicalTrials.gov/NCT01160861 SI - ClinicalTrials.gov/NCT01196039 PT - Clinical Trial, Phase II PT - Journal Article PT - Multicenter Study PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PL - United States TA - Sci Transl Med JT - Science translational medicine JID - 101505086 RN - 0 (Antibodies, Anti-Idiotypic) RN - 0 (Epitopes) RN - 0 (Receptors, IgE) RN - 0 (anti-IgE antibodies) RN - 37341-29-0 (Immunoglobulin E) SB - IM MH - Adult MH - Antibodies, Anti-Idiotypic/*immunology/*therapeutic use MH - Epitopes/*immunology MH - Female MH - Humans MH - Immunoglobulin E/*metabolism MH - Male MH - Middle Aged MH - Receptors, IgE/antagonists & inhibitors/*immunology EDAT- 2014/07/06 06:00 MHDA- 2015/02/24 06:00 CRDT- 2014/07/04 06:00 PHST- 2014/07/04 06:00 [entrez] PHST- 2014/07/06 06:00 [pubmed] PHST- 2015/02/24 06:00 [medline] AID - 6/243/243ra85 [pii] AID - 10.1126/scitranslmed.3008961 [doi] PST - ppublish SO - Sci Transl Med. 2014 Jul 2;6(243):243ra85. doi: 10.1126/scitranslmed.3008961.