(AQXP) Update on BPS/IC Phase 2, Second Quarter Financial Results

VANCOUVER, British Columbia, July 28, 2015  — Aquinox Pharmaceuticals, Inc. (“Aquinox“) (NASDAQ:AQXP), a clinical-stage pharmaceutical company discovering and developing targeted therapeutics in disease areas of inflammation and immuno-oncology, will provide an update on results from secondary endpoints from its recently completed Phase 2 LEADERSHIP randomized clinical trial with AQX-1125 in patients with bladder pain syndrome/interstitial cystitis (BPS/IC). Aquinox will also provide a general business update and report second quarter 2015 financial results on Thursday, August 6^th, 2015 after close of U.S. financial markets.

Aquinox will host a conference call and live webcast on Thursday, August 6^th, 2015 at 4:45 PM (ET) / 1:45 PM (PT). Presentation slides will accompany the webcast and will be posted to the Aquinox website following completion of the call.

Conference Call and Webcast Details:

Date: Thursday, August 6^th, 2015 Time: 4:45 PM (ET) / 1:45 PM (PT).
Toll-free: (866) 357-7878
International: (315) 625-3088
Conference ID: 96372657
Webcast URL: http://edge.media-server.com/m/p/4b67r6k9

The live webcast may be accessed through the “Events & Presentations” page in the “Investor Relations” section of the company’s website at www.aqxpharma.com. The archived webcast will also be available on Aquinox‘s website approximately two hours after the event and will be available for replay for at least 30 days after the event.

About AQX-1125

AQX-1125, Aquinox’s lead drug candidate, is a small molecule activator of SHIP1, which is a regulating component of the PI3K cellular signaling pathway. By increasing SHIP1 activity, AQX-1125 accelerates a natural mechanism that has evolved to maintain homeostasis of the immune system and reduce immune cell activation and migration to sites of inflammation. AQX-1125 has demonstrated preliminary safety and favorable drug properties in multiple preclinical studies and clinical trials. Aquinox is currently developing AQX-1125 as an oral, once daily treatment in bladder pain syndrome/interstitial cystitis. In addition, Aquinox is exploring AQX-1125 for atopic dermatitis in its ongoing KINSHIP Phase 2 trial with top line data expected by Q1 2016.

About Aquinox Pharmaceuticals, Inc.

Aquinox Pharmaceuticals, Inc. is a clinical-stage pharmaceutical company discovering and developing targeted therapeutics in disease areas of inflammation and immuno-oncology. Aquinox’s lead drug candidate, AQX-1125, is a small molecule activator of SHIP1 suitable for oral, once daily dosing. Aquinox has a broad intellectual property portfolio and pipeline of preclinical drug candidates that activate SHIP1. For more information, please visit www.aqxpharma.com.

Investor Contact:

Brendan Payne
Senior Manager, Investor Relations
Aquinox Pharmaceuticals, Inc.
604.629.9223 Ext. 109
ir@aqxpharma.com

Communications Contact:

Heather Savelle
Vice President
MacDougall Biomedical Communications
781.235.3060
aquinox@macbiocom.com