Alder BioPharmaceuticals® to Present at 38th Annual Cowen & Co. Health Care Conference

BOTHELL, Wash., March 05, 2018 -- Alder BioPharmaceuticals, Inc. (NASDAQ:ALDR), a biopharmaceutical company focused on developing novel therapeutic antibodies for the treatment of migraine, today announced that it will webcast a business overview and update by Mark J. Litton, Ph.D., MBA, chief business officer, at the 38^th Annual Cowen & Co. Health Care Conference at 4:50 p.m. ET on Monday, March 12, 2018 in Boston, MA.

A live audio webcast of the event can be accessed on the Events & Presentations page of the Investors section of Alder's website at http://www.alderbio.com, or by following the link below in your web browser. An archived replay of the webcast will be available on Alder's website for at least 30 days after the live event concludes.

• Link: http://wsw.com/webcast/cowen46/aldr/

About Alder BioPharmaceuticals, Inc.
Alder BioPharmaceuticals, Inc., is a clinical-stage biopharmaceutical company committed to transforming the treatment paradigm for patients with migraine and other serious neurological or inflammatory conditions. Leveraging its pioneering monoclonal antibody technologies, Alder discovers and develops novel therapeutic antibodies designed to deliver highly differentiated, best-in-class clinical profiles. Alder's lead pivotal-stage product candidate, eptinezumab, is being evaluated as potentially the first-to-market migraine prevention infusion therapy. Eptinezumab is a monoclonal antibody (mAb) inhibiting calcitonin gene-related peptide (CGRP), which is believed to play a key role in mediating and initiating migraine. Alder is additionally evaluating ALD1910, a preclinical product candidate also in development as a migraine prevention therapy. ALD1910 is a monoclonal antibody that inhibits pituitary adenylate cyclase-activating polypeptide-38 (PACAP-38), another protein that is active in mediating the initiation of migraine. Clazakizumab, Alder's third program, is a monoclonal antibody candidate that inhibits interleukin-6 and is licensed to Vitaeris, Inc. For more information, please visit http://www.alderbio.com.

Media Contact:                                                                
Ashley Cadle                                                                       
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Investor Relations Contact:                                        
Michael Schaffzin
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