Windtree Therapeutics, Inc. (Nasdaq: WINT), a biotechnology company focused on developing aerosolized KL4 surfactant therapies for respiratory diseases, today reported financial results for the second quarter ended June 30, 2016 and provided key business updates.

Key Business and Financial Updates

• Enrollment in the AEROSURF phase 2b trial in RDS is ongoing and the Company continues to be on track to announce top-line results from this study in the first quarter of 2017.
• Following a planned Safety Review Committee review of the first dose group, enrollment is proceeding in the second dose group in the AEROSURF phase 2a clinical trial in 32 premature infants 26 to 28 week gestational age receiving nCPAP for RDS. This study is designed to evaluate safety and tolerability of AEROSURF. The Company anticipates completing enrollment in September and releasing top-line results of this trial in late September or early October 2016.
• The Company recently completed a Lung Deposition Study in nonhuman primates. The study consists of a series of experiments designed to assess the distribution and deposition of aerosolized KL4 surfactant in the lung when administered using the Company's innovative aerosol drug delivery technology. The Company is finalizing the analysis of the study data and anticipates reporting these results in September 2016.
• In the second quarter of 2016, the Company met with the FDA to discuss key elements of the AEROSURF clinical development program. The Company believes that these discussions reaffirmed its current and planned approach to the clinical development program for AEROSURF.
• In April, the Company completed the analysis of data collected in the first phase of its Noninterventional Observational Study on the treatment and outcomes of premature infants 26 to 34 week gestational age with RDS. The study was initiated in 2015 and over 2,000 premature infants have been enrolled to date. The results of the study have better informed our assessment of the unmet medical need in RDS, the design of a potential Phase 3 trial, and the RDS market opportunity. Based on this study, the Company has enhanced some of the operational aspects of the AEROSURF phase 2 program.
• The Company recently announced that it has been awarded a Phase II Small Business Innovation Research Grant (SBIR) valued at up to $2.6 million from the National Heart, Lung, and Blood Institute (NHLBI) of the National Institutes of Health (NIH) to support the on-going AEROSURF phase 2b RDS clinical trial. Under the terms of the grant, the Company has been awarded $1.0 million initially and, over the next two years, may be awarded up to an additional $1.6 million through the completion of the phase 2b clinical trial and one-year patient follow-up. The Company also received a separate grant of $1.0 million under a previously announced Phase II SBIR grant valued at up to $3.0 million to support continued development of the Company's aerosolized KL4 surfactant as a potential medical countermeasure to mitigate acute and chronic/late-phase radiation-induced lung injury.
• As of June 30, 2016, the Company had cash and cash equivalents of $20.3 million.

"The second quarter of 2016 was one of meaningful progress for Windtree and our AEROSURF phase 2 program," commented Craig Fraser, President and Chief Executive Officer. "We expanded our clinical trial to include sites in Europe and Latin America, conducted a successful meeting with the FDA that will guide our AEROSURF development program, completed collection and analysis of data from over 2,000 premature infants in the Noninterventional Observational Study, and completed the Lung Deposition Study in non-human primates. Our primary objective for 2016 remains the rigorous and timely execution of the AEROSURF phase 2 program while effectively managing existing cash resources."

Select Financial Results for the Second Quarter ended June 30, 2016

For the quarter ended June 30, 2016, the Company reported an operating loss of $10.0 million, compared to$10.4 million for the second quarter of 2015.

Grant revenue for the second quarter of 2016 and 2015 was $0.1 million. Grant revenue represents funds received and expended under SBIR grants from the NIH to (i) in both 2015 and 2016, study the Company's aerosolized KL4 surfactant as a medical countermeasure to mitigate acute and chronic/late-phase radiation-induced lung injury; and, (ii) in 2015, provide support for the initial AEROSURF phase 2a clinical trial in premature infants 29 to 34 week gestational age with RDS.

Research and development expenses were $8.3 million for the second quarter of 2016, compared to $7.1 million for the second quarter of 2015. The increase was due to a $2.6 million increase in AEROSURF clinical trial activities, including patient enrollment costs, ongoing clinical site initiations and the manufacture of additional clinic-ready aerosol delivery systems (ADS), partially offset by a decrease of $1.3 million in manufacturing costs following the closure of our manufacturing operations at our leased facility in Totowa, NJ inJune 2015.

Selling, general and administrative expenses for the second quarter of 2016 were $1.8 million, compared to$3.4 million for the second quarter of 2015. The decrease was primarily due to the Company's decision in April 2015 to voluntarily cease commercial and manufacturing activities for SURFAXIN®, resulting in a reduction in workforce related primarily to commercial infrastructure.

Interest expense for the second quarter of 2016 was $0.6 million, compared to $1.3 million for the second quarter of 2015. The decrease in interest expense was due to the July 2015 restructuring of our long-term debt with affiliates of Deerfield Management Company, L.P., which resulted in the write-off of previously capitalized debt discount costs which were being amortized to interest expense.

The Company reported a net loss of $10.6 million ($1.29 per basic share) on 8.2 million weighted-average common shares outstanding for the quarter ended June 30, 2016, compared to a net loss of $11.3 million($1.82 per basic share) on 6.1 million weighted average common shares outstanding for the comparable period in 2015.

Net cash outflows before financing activities for the second quarter of 2016 were $9.1 million.

As of June 30, 2016, the Company had cash and cash equivalents of $20.3 million. Based on current projections and development timelines, the Company anticipates that it has sufficient cash to support its operations through the planned completion of the AEROSURF phase 2b clinical trial and the release of top line results, which is expected in the first quarter of 2017. In addition, as of June 30, 2016, the Company reported accounts payable and accrued expenses of $15.1 million, including $4.5 million due under the collaboration agreement with the Battelle Memorial Institute, and long-term debt with Deerfield of $25 million. The debt is payable in two equal installments of $12.5 million in each of February 2018 and 2019. The payment due inFebruary 2018 may be deferred if certain conditions are satisfied.

Readers are referred to, and encouraged to read in its entirety, the Company's Quarterly Report on Form 10-Q for the quarter ended June 30, 2016, which is expected to be filed today with the Securities and Exchange Commission, and includes discussion about the Company's business plans and operations, financial condition, and results of operations.

The Company plans on updating investors in September and providing a comprehensive update on the AEROSURF development program including the ongoing AEROSURF phase 2a and 2b clinical trials in premature infants, the Lung Deposition Study in nonhuman primates, and other business updates.

About AEROSURF® 

Windtree's lead product candidate is AEROSURF, a novel, investigational drug/device product that combines the Company's proprietary KL4 surfactant and aerosolization technologies. AEROSURF is being developed to potentially reduce or eliminate the need for endotracheal intubation and mechanical ventilation in the treatment of premature infants with respiratory distress syndrome (RDS). Enrollment is ongoing in a phase 2b clinical trial in up to 240 premature infants to study AEROSURF in premature infants 26 to 32-week gestational age receiving nasal continuous positive airway pressure (nCPAP) for RDS, compared to infants receiving nCPAP alone. The phase 2b trial is a global trial with clinical sites in North America, Europe and Latin America.

About Windtree Therapeutics

Windtree Therapeutics, Inc. is a clinical-stage biotechnology company focused on developing novel surfactant therapies for respiratory diseases and other potential applications. Windtree's proprietary technology platform includes a synthetic, peptide-containing surfactant (KL4 surfactant) that is structurally similar to endogenous pulmonary surfactant and novel drug-delivery technologies being developed to enable noninvasive administration of aerosolized KL4 surfactant. Windtree is focused initially on improving the management of respiratory distress syndrome (RDS) in premature infants and believes that its proprietary technology may make it possible, over time, to develop a pipeline of KL4 surfactant product candidates to address a variety of respiratory diseases for which there are few or no approved therapies.

For more information, please visit the Company's website at www.windtreetx.com.