Biopharmaceutical Company Aer Therapeutics Raises $36 Million In Series A Funding

By Noah Long • Apr 19, 2023

Aer Therapeutics – a biopharmaceutical company developing novel inhaled treatments for muco-obstructive lung diseases – announced the closing of a $36 million Series A financing. The funding was received from a syndicate of premier life science industry investors, including Canaan, OrbiMed, and Hatteras Venture Partners.

The proceeds from the financing will be used to advance the development of AER-01, which is the company’s novel inhaled small molecule mucolytic drug designed to liquefy mucus plugs in the lungs of patients with chronic obstructive pulmonary disease (COPD). Aer Therapeutics plans to initiate a first-in-human Phase 1 clinical trial of AER-01 in mid-2023.

Aer Therapeutics spun out from Dr. John Fahy’s laboratory at the University of California, San Francisco (UCSF). Dr. Fahy’s laboratory collaboratively developed AER-01 with Stefan Oscarson’s glycochemistry laboratory at University College Dublin (UCD) and Anne Marie Healy’s pharmaceutical laboratory at Trinity College Dublin (TCD). The combined expertise of these laboratories in mucus biology, glycochemistry, inhaled drug formulation, drug delivery, and lung imaging – supported by a development grant from the National Institutes of Health – underlies the novel AER-01 technology.

It is estimated that about 5 million COPD patients in the United States have a mucus plug-high disease subtype. And conventional COPD treatments such as bronchodilators and supplemental oxygen do not treat the airway obstruction caused by mucus plugs. The recent advances in the understanding of mucus plug biology and novel methods of quantifying mucus plugs using computed tomography (CT) have created opportunities to advance drug development intended to eliminate mucus plugs. Aer Therapeutics is seizing on these new opportunities to advance AER-01 for COPD.

As part of the Series A funding round, the company has expanded its board of directors to include new appointees: Tim Shannon, M.D., general partner at Canaan; Rishi Gupta, J.D., partner at OrbiMed; Christy Shaffer, Ph.D., general partner at Hatteras Venture Partners; and, Thomas Mathers, CEO at Allievex.  They join current board members Mr. Shaffer and Dr. Fahy.

KEY QUOTES:

“We are excited to introduce Aer Therapeutics as a company dedicated to delivering a therapeutic solution to patients with COPD who have severe airway obstruction caused by mucus plugs. Our scientific founders led the pioneering research that uncovered mucus plugs as a key mechanism of disease in COPD, and their laboratories worked together to discover AER-01 as a novel mucolytic treatment. Aer will continue to leverage this expertise in the development of AER-01 and other therapeutic candidates for the treatment of muco-obstructive lung diseases.”

Jim Shaffer, President and Chief Executive Officer of Aer Therapeutics

“Studies using CT lung scans confirm that mucus plugs are highly prevalent in COPD patients and those with a high mucus plug burden have lower lung function, increased frequency of exacerbations, diminished quality of life, and increased risk of all-cause mortality.1, 2These findings provide a basis to specifically treat and remove mucus plugs as a strategy to improve lung health for COPD patients. COPD is a complex disease and one-size-fits-all treatment approaches are not likely to work. The use of CT imaging in the clinical development for AER-01 will help ensure that treatment is targeted to those patients most likely to benefit from an effective mucolytic.”

– John Fahy, M.D., M.Sc., Professor of Medicine at UCSF and founder of Aer Therapeutics