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Optinose Announces Late Breaking Abstract Podium Presentation at IDWeek 2022

Optinose, Inc.
Optinose, Inc.

Presentation highlights a greater than 60% reduction in acute exacerbations and need for antibiotics for chronic sinusitis patients who used XHANCE in landmark ReOpen phase 3 clinical trial program

Acute exacerbations of chronic sinusitis can lead to doctor visits, antibiotic use, steroid use,
surgery, and important morbidity and loss of quality of life

There are approximately 10 million outpatient visits for chronic rhinosinusitis per year,
antibiotics are prescribed in ≈70% of visits, and chronic rhinosinusitis is reported to be the number one reason
for outpatient adult antibiotic prescriptions in the United States1

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YARDLEY, Pa., Oct. 21, 2022 (GLOBE NEWSWIRE) -- Optinose (NASDAQ:OPTN), a pharmaceutical company focused on patients treated by ear, nose and throat (ENT) and allergy specialists, today announced that data from its landmark ReOpen phase 3 clinical trial program will be presented at IDWeek 2022 in Washington, D.C. today.

The ReOpen phase 3 clinical trial program evaluated XHANCE® (also referred to as EDS-FLU), as a potential treatment for chronic sinusitis. XHANCE (fluticasone propionate) nasal spray is a drug-device combination product combining OptiNose’s proprietary Exhalation Delivery System™ (EDS™) designed to uniquely deliver drug high and deep in nasal passages with an anti-inflammatory drug.

Late Breaking Presentation (LB1581): Exhalation Delivery System with Fluticasone (EDS-FLU) Significantly Reduces Acute Exacerbations and Associated Antibiotic Use in Chronic Rhinosinusitis, is scheduled for Friday, October 21, 2022 at 4:15 p.m. ET during the Late Breaking Abstracts – A Tour of ID Topics session, Location 204 ABC.

This presentation is intended for scientific discussion only.

About the ReOpen Program
The ReOpen program comprises 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 patients were treated who had CS with or without nasal polyps. In ReOpen2, the second of the two trials, 222 patients were treated who had CS without nasal polyps. 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 the change in average of percentages of volume occupied by disease across the ethmoid and maxillary sinuses as measured by CT scan. Acute exacerbations of chronic rhinosinusitis was a pre-specified key outcome measure evaluated using pooled data from both ReOpen trials.

About Chronic Sinusitis
Chronic sinusitis (CS), cited as the second most common chronic disease of adults in the US2, is a serious chronic inflammatory disease affecting as many as 30 million adults in the United States and costing the U.S. economy over $30 billion in direct and indirect costs every year.3 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 most patients suffering for many years. In addition, the condition is often associated with multiple acute exacerbations that result in substantial use of antibiotics. In some patients, 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 who do not have nasal polyps, though there are medications, including XHANCE, approved by FDA for treatment of nasal polyps. The term “chronic rhinosinusitis” is also often used as an umbrella term in medical literature to refer to patients with chronic inflammatory disease in the nose and sinuses, with or without nasal polyps.

About Optinose
Optinose is a 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 U.S. Food and Drug Administration for the treatment of nasal polyps in patients 18 years of age or older and has been studied for treatment of chronic sinusitis 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 those with and without nasal polyps. If approved, XHANCE may be the first drug ever FDA-approved for treatment of chronic sinusitis either with or without nasal polyps.

Important Safety Information

CONTRAINDICATIONS: Hypersensitivity to any ingredient in XHANCE.

WARNINGS AND PRECAUTIONS:

  • Local Nasal Effects: 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.

  • 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: 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.

References

  1. Smith SS, Evans CT, Tan BK, Chandra RK, Smith SB, Kern RC. National burden of antibiotic use for adult rhinosinusitis. J Allergy Clin Immunol. 2013 Nov;132(5):1230-2. doi: 10.1016/j.jaci.2013.07.009. Epub 2013 Aug 26. PMID: 23987794; PMCID: PMC3815964.

  2. 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.

  3. 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 date, time and details of the presentation at IDWeek 2022; the potential benefits of XHANCE for treating chronic sinusitis and reducing disease exacerbations; the Company's plans to seek approval for a follow-on indication for XHANCE for the treatment of chronic sinusitis and the potential benefits of such indication; the potential for XHANCE to be the first FDA-approved drug product for the treatment of chronic sinusitis; and other statements regarding the Company's future operations, financial performance, financial position, 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: potential for varying interpretation of the results from the ReOpen Trial program; uncertainties related to the clinical development program and regulatory approval of XHANCE for the treatment of chronic sinusitis; and the risks, uncertainties and other factors discussed under the caption "Item 1A. Risk Factors" and elsewhere in the Company’s 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 the Company undertakes no obligation to update such forward-looking statements, whether as a result of new information, future developments or otherwise.

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