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Optinose Submits Supplemental New Drug Application for XHANCE Label Expansion

YARDLEY, Pa., Feb. 21, 2023 (GLOBE NEWSWIRE) -- Optinose (NASDAQ:OPTN), a pharmaceutical company focused on patients treated by ear, nose and throat (ENT) and allergy specialists, today announced the submission of its supplemental new drug application (sNDA) to the U.S. Food and Drug Administration (FDA) to request approval of XHANCE as a treatment for chronic rhinosinusitis. XHANCE® (fluticasone propionate) nasal spray is a drug device combination product combining an anti-inflammatory drug with the innovative Exhalation Delivery System™ (EDS™) that is designed to uniquely deliver drug high and deep into nasal passages. The sNDA submission is based on data from the two Phase 3 clinical trials from the ReOpen Program in patients suffering from chronic sinusitis and was submitted to the FDA on February 16, 2023.

“We are pleased to announce completion of this sNDA submission for XHANCE. The submission marks an important milestone in our progress towards changing the standard of care for approximately 10 million people in the United States with chronic rhinosinusitis who seek physician treatment annually, particularly the majority who do not have nasal polyps and for whom there are currently no FDA-approved drug treatments,” stated Ramy Mahmoud, MD, MPH, CEO of Optinose. “I would like to thank the patients whose altruism made this advance possible, and both the healthcare providers worldwide and my colleagues at Optinose whose hard work and dedication enabled the entire program and submission.”

About the ReOpen Program
The ReOpen program comprised two global, randomized, double-blind, placebo-controlled Phase 3 trials that evaluated the efficacy and safety of one or two sprays of XHANCE (OPN-375) in each nostril twice daily, over 24 weeks, in patients suffering from chronic sinusitis (CS). In ReOpen1, the first of the two trials, 332 CS patients were treated, either with or without concurrent nasal polyps. In ReOpen2, the second of the two trials, 222 CS patients were treated, all of whom did not have polyps in the nasal cavity. The co-primary endpoints were change from baseline in symptoms, as measured by a composite score of patient-reported symptoms (including nasal congestion, facial pain or pressure sensation, and nasal discharge) at the end of week 4, and objective change in inflammation inside the sinus cavities, as measured by CT scans assessing the change in the average of the percentages of volume occupied by disease across the ethmoid and maxillary sinuses. The ReOpen trial program is a landmark research program because these are the first ever large, controlled trials we are aware of with any nasal medication to demonstrate significant improvement of both symptoms and inflammation inside the sinuses and to show reduction in the number of acute exacerbations.

About Chronic Sinusitis

Chronic sinusitis (CS), also commonly called “chronic rhinosinusitis”, has been cited as the second most common chronic disease of adults in the US1. It is a serious chronic inflammatory disease affecting as many as 30 million adults in the United States and burdens the U.S. economy with over $30 billion in direct and indirect costs every year.2 CS is characterized by chronic inflammation affecting the paranasal sinuses and the nasal cavity, where the openings from the sinuses normally ventilate and drain. Chronic sinusitis is associated with symptoms that persist for at least 12 weeks, with many patients suffering for years. In addition, the condition is often associated with multiple acute exacerbations that require medical care and result in substantial use of antibiotics. In some patients, the chronic sino-nasal inflammation is accompanied by development of polyps in the nasal cavities, referred to as nasal polyposis. Today, there are no FDA-approved drug treatments for the majority of chronic sinusitis patients, those who do not have polyps in the nasal cavity, although there are medications, including XHANCE, that have been approved by FDA for treatment of the smaller population of chronic rhinosinusitis patients who do have nasal polyps. The term “chronic rhinosinusitis” is sometimes used instead of “chronic sinusitis” to acknowledge that inflammation inside the sinuses is typically accompanied by inflammation in the nasal cavity.

About Optinose
Optinose is a global specialty pharmaceutical company focused on serving the needs of patients cared for by ear, nose and throat (ENT) and allergy specialists. To learn more, please visit www.optinose.com or follow us on Twitter and LinkedIn.

About XHANCE
XHANCE is a drug-device combination product that uses the Exhalation Delivery System (also referred to as the EDS) designed to deliver a topical anti-inflammatory to the high and deep regions of the nasal cavity where sinuses ventilate and drain. XHANCE is approved by the U.S. Food and Drug Administration for the treatment of chronic rhinosinusitis with nasal polyps in patients 18 years of age or older and has been studied for treatment of chronic sinusitis (notably including patients without polyps in the nasal cavity) in two phase 3 trials, ReOpen1 and ReOpen2. Top-line results from these trials are the first ever that we are aware of that show improvement in both symptoms and inflammation inside the sinuses, and reduction in acute exacerbations of disease, with a nasal therapy for chronic sinusitis patients, including patients with or without nasal polyps. If approved, XHANCE may be the first drug ever FDA-approved for treatment of chronic rhinosinusitis either with or without nasal polyps.

Important Safety Information

CONTRAINDICATIONS: Hypersensitivity to any ingredient in XHANCE.

WARNINGS AND PRECAUTIONS:

  • Local Nasal Adverse Reactions: epistaxis, erosion, ulceration, septal perforation, Candida albicans infection, and impaired wound healing. Monitor patients periodically for signs of possible changes on the nasal mucosa. Avoid use in patients with recent nasal ulcerations, nasal surgery, or nasal trauma until healing has occurred.
  • Close monitoring for glaucoma and cataracts is warranted.
  • Hypersensitivity reactions (e.g., anaphylaxis, angioedema, urticaria, contact dermatitis, rash, hypotension, and bronchospasm) have been reported after administration of fluticasone propionate. Discontinue XHANCE if such reactions occur.
  • Immunosuppression and Risk of Infection: potential increased susceptibility to or worsening of infections (e.g., existing tuberculosis; fungal, bacterial, viral, or parasitic infection; ocular herpes simplex). Use with caution in patients with these infections. More serious or even fatal course of chickenpox or measles can occur in susceptible patients.
  • Hypercorticism and adrenal suppression may occur with very high dosages or at the regular dosage in susceptible individuals. If such changes occur, discontinue XHANCE slowly.
  • Patients with major risk factors for decreased bone mineral content should be monitored and treated with established standards of care.

ADVERSE REACTIONS: The most common adverse reactions (incidence ≥ 3%) are epistaxis, nasal septal ulceration, nasopharyngitis, nasal mucosal erythema, nasal mucosal ulcerations, nasal congestion, acute sinusitis, nasal septal erythema, headache, and pharyngitis.

DRUG INTERACTIONS: Strong cytochrome P450 3A4 inhibitors (e.g., ritonavir, ketoconazole): Use not recommended. May increase risk of systemic corticosteroid effects.

USE IN SPECIFIC POPULATIONS: Hepatic impairment. Monitor patients for signs of increased drug exposure.

Please see full Prescribing Information, including Instructions for Use

References

  1. Hamilos DL. Chronic rhinosinusitis: epidemiology and medical management. J Allergy Clin Immunol. 2011 Oct;128(4):693-707; quiz 708-9. doi: 10.1016/j.jaci.2011.08.004. Epub 2011 Sep 3. PMID: 21890184.
  2. Palmer JN, Messina JC, Biletch R, Grosel K, Mahmoud RA. A cross-sectional, population-based survey of U.S. adults with symptoms of chronic rhinosinusitis. Allergy Asthma Proc. 2019 Jan 14;40(1):48-56. doi: 10.2500/aap.2019.40.4182. PMID: 30582496.

Cautionary Note on Forward-Looking Statements
This press release contains forward-looking statements within the meaning of the U.S. Private Securities Litigation Reform Act of 1995. All statements that are not historical facts are hereby identified as forward-looking statements for this purpose and include, among others, statements relating to the potential for XHANCE to be the first FDA approved drug product for chronic rhinosinusitis and the potential benefits of such label expansion; and other statements regarding the Company's future operations, prospects, objectives and other future events. Forward-looking statements are based upon management’s current expectations and assumptions and are subject to a number of risks, uncertainties and other factors that could cause actual results and events to differ materially and adversely from those indicated by such forward-looking statements including, among others: physician and patient acceptance of XHANCE for its current and any potential future indication; potential for varying interpretation of clinical trial results of XHANCE for the treatment of chronic rhinosinusitis; risks and uncertainties relating to the FDA’s acceptance of the sNDA for filing and FDA approval of XHANCE for the treatment of chronic rhinosinusitis; the prevalence of chronic sinusitis and market opportunities for XHANCE may be smaller than the Company expects; and the risks, uncertainties and other factors discussed under the caption "Item 1A. Risk Factors" and elsewhere in our most recent Form 10-K and Form 10-Q filings with the Securities and Exchange Commission - which are available at www.sec.gov. As a result, you are cautioned not to place undue reliance on any forward-looking statements. Any forward-looking statements made in this press release speak only as of the date of this press release, and we undertake no obligation to update such forward-looking statements, whether as a result of new information, future developments or otherwise.

Optinose Investor Contact
Jonathan Neely
jonathan.neely@optinose.com
267.521.0531


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