News Release

• Company continues to focus on upcoming results from ENLIGHTEN 2 pivotal Phase 3 trial in CRS patients expected in 2Q 2025 
• Company reports topline safety results from ENLIGHTEN 1 Phase 3 extension study indicating no product-related serious adverse events and general consistency with the primary treatment phase 

WATERTOWN, Mass., Nov. 12, 2024 (GLOBE NEWSWIRE) --  Lyra Therapeutics, Inc. (Nasdaq: LYRA) (“Lyra” or the “Company”), a clinical-stage biotechnology company developing long-acting, anti-inflammatory sinonasal implants for the treatment of chronic rhinosinusitis (CRS), today reported its financial results for the third quarter ended September 30, 2024 and provided a corporate update.  

“We look forward to key milestones in the coming months from the two ongoing ENLIGHTEN Phase 3 trials that will provide us with a more complete data set and greater insight into determining a potential pathway to approval for LYR-210 in CRS patients with and without nasal polyps. The topline 52-week safety data from the ENLIGHTEN 1 safety extension study was in-line with the primary treatment phase, with no product-related serious adverse events, including for those patients that received a repeat dose, resulting in a 12-month treatment period. We are anticipating additional data from the ENLIGHTEN 1 safety extension study in the coming months, which will be presented at an upcoming medical conference, as well as topline results from the ENLIGHTEN 2 pivotal trial expected in Q2 2025,” said Maria Palasis, Ph.D., President and CEO of Lyra Therapeutics.

Dr. Palasis continued, “We eagerly await the upcoming data readouts, and they will guide us in making data-driven evaluations as we determine the potential path for LYR-210 to add value for CRS patients, investors and other stakeholders.”

The ENLIGHTEN program consists of two pivotal Phase 3 clinical trials, ENLIGHTEN 1 and ENLIGHTEN 2, to evaluate the efficacy and safety of LYR-210 for the treatment of CRS. Each ENLIGHTEN trial has enrolled approximately 180 CRS patients who have failed medical management and have not had prior ethmoid sinus surgery, randomized 2:1 to either LYR-210 (7500µg mometasone furoate) or sham control for 24 weeks.

Topline Results from the ENLIGHTEN 1 52-week extension study

Today, Lyra reported topline 52-week safety data from the ENLIGHTEN 1 safety extension study:

• Safety data for LYR-210 was generally consistent with the 24-week primary treatment phase, including for those patients that received a repeat dosing, resulting in a 12-month treatment period.
• LYR-210 was generally well tolerated, with no product-related serious adverse events. The most commonly reported adverse events in the study population were chronic sinusitis, nasal odor, epistaxis, sinusitis, and nasopharyngitis.

Clinical Program Highlights

Enrollment in ENLIGHTEN 2 completed

• In October 2024, Lyra announced that the pivotal Phase 3 ENLIGHTEN 2 clinical trial of LYR-210 in adult patients with CRS who have not had prior ethmoid sinus surgery, was fully enrolled, achieving the expected enrollment timeframe of second half of 2024.
  

Milestones for Ongoing ENLIGHTEN Pivotal Program of LYR-210 in CRS

• Topline results from ENLIGHTEN 2 are expected in Q2 2025.
  

Third Quarter 2024 Financial Highlights

Cash, cash equivalents and short-term investments as of September 30, 2024 were $51.6 million, compared with $67.5 million at June 30, 2024. Based on our current business plan, we anticipate that our cash, cash equivalents and short-term investment balance is sufficient to fund our operating expenses and capital expenditures into the first quarter of 2026. 

Research and development expenses for the quarter ended September 30, 2024 were $5.9 million compared to $12.4 million for the same period in 2023, representing a decrease of $6.5 million. The decrease in research and development expenses for the three months ended September 30, 2024 was primarily attributable to a $3.8 million decrease in clinical related costs as we completed both the BEACON trial for LYR-220 and the primary study phase of the ENLIGHTEN 1 trial for LYR-210, a decrease of $2.5 million in employee related costs primarily driven by the reduction in force which occurred in May 2024, a decrease in professional and consulting costs of $0.4 million and a decrease in product development and manufacturing costs of $0.4 million. This decrease in costs was partially offset by an increase in allocated costs and depreciation of $0.6 million.  

General and administrative expenses for the quarter ended September 30, 2024 were $3.9 million compared to $5.0 million for the same period in 2023, representing a decrease of $1.1 million. The decrease in general and administrative expenses for the three months ended September 30, 2024 was primarily driven by a decrease in professional and consulting fees of $1.0 million as we scaled back activities subsequent to announcing in May 2024 that the ENLIGHTEN 1 trial did not meet its primary endpoint, in addition to a decrease in employee related costs of $0.5 million primarily due to the reduction in force which occurred in May 2024. These cost decreases were partially offset by an increase in allocation and support costs of $0.4 million primarily due to the increased rent and facilities expenses for the Company’s three leased facilities for the three months ended September 30, 2024 compared to the three months ended September 30, 2023.

Net loss for the quarter ended September 30, 2024 was $11.9 million compared to $15.7 million for the same period in 2023.  

LYRA THERAPEUTICS, INC. CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (unaudited) (in thousands, except share and per share data)
		Three Months Ended September 30,								Nine Months Ended September 30,
		2024				2023				2024				2023
Collaboration revenue		$	195			$	544			$	1,325			$	1,412
Operating expenses:
Research and development			5,902				12,368				37,404				35,763
General and administrative			3,931				5,003				14,888				14,700
Impairment of property and equipment			—				—				1,883				1,592
Impairment of right-of-use assets			—				—				22,836				—
Restructuring and other related charges			2,804				—				9,254				—
Total operating expenses			12,637				17,371				86,265				52,055
Loss from operations			(12,442	)			(16,827	)			(84,940	)			(50,643	)
Other income:
Interest income			576				1,192				2,517				3,161
Total other income			576				1,192				2,517				3,161
Loss before income tax expense			(11,866	)			(15,635	)			(82,423	)			(47,482	)
Income tax expense			(7	)			(16	)			(33	)			(42	)
Net loss			(11,873	)			(15,651	)			(82,456	)			(47,524	)
Other comprehensive loss:
Unrealized holding gain (loss) on short-term investments, net of tax			24				20				(13	)			(17	)
Comprehensive loss		$	(11,849	)		$	(15,631	)		$	(82,469	)		$	(47,541	)
Net loss per share attributable to common stockholders— basic and diluted		$	(0.18	)		$	(0.27	)		$	(1.27	)		$	(1.04	)
Weighted-average common shares outstanding— basic and diluted			65,456,735				56,953,685				64,981,219				45,894,643

LYRA THERAPEUTICS, INC. CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) (in thousands, except share data)
		September 30,				December 31,
		2024				2023
Assets
Current assets:
Cash and cash equivalents		$	23,800			$	22,353
Short-term investments			27,826				80,400
Prepaid expenses and other current assets			2,818				2,068
Total current assets			54,444				104,821
Property and equipment, net			1,613				2,043
Operating lease right-of-use assets			20,707				33,233
Restricted cash			1,992				1,392
Other assets			—				1,111
Total assets		$	78,756			$	142,600
Liabilities and Stockholders’ Equity
Current liabilities:
Accounts payable		$	2,292			$	3,131
Restructuring liability			4,855				—
Accrued expenses and other current liabilities			3,197				9,374
Operating lease liabilities			4,003				5,434
Deferred revenue			607				1,658
Total current liabilities			14,954				19,597
Operating lease liabilities, net of current portion			31,321				21,447
Deferred revenue, net of current portion			11,862				12,136
Total liabilities			58,137				53,180
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $0.001 par value, 10,000,000 shares authorized at September 30, 2024 and December 31, 2023; no shares issued and outstanding at September 30, 2024 and December 31, 2023			—				—
Common stock, $0.001 par value; 200,000,000 shares authorized at September 30, 2024 and December 31, 2023; 65,456,735 and 57,214,550 shares issued and outstanding at September 30, 2024 and December 31, 2023, respectively			65				57
Additional paid-in capital			414,345				400,685
Accumulated other comprehensive income, net of tax			20				33
Accumulated deficit			(393,811	)			(311,355	)
Total stockholders’ equity			20,619				89,420
Total liabilities and stockholders’ equity		$	78,756			$	142,600

About LYR-210
LYR-210 is an investigational product candidate for the treatment of chronic rhinosinusitis (CRS) in patients who have failed current therapies and require further intervention. LYR-210 is a bioresorbable nasal implant designed to be inserted in a simple, in-office procedure. LYR-210 is intended to deliver six months of continuous anti-inflammatory therapy, mometasone furoate, to the sinonasal passages to treat CRS. LYR-210 is being evaluated in the ENLIGHTEN pivotal Phase 3 clinical program.

About Lyra Therapeutics
Lyra Therapeutics, Inc. is a clinical-stage biotechnology company developing long-acting, anti-inflammatory sinonasal implants for the treatment of chronic rhinosinusitis (CRS). Lyra Therapeutics is developing therapies for CRS, a highly prevalent inflammatory disease of the paranasal sinuses which leads to debilitating symptoms and significant morbidities. LYR-210, the company’s lead product, is a bioabsorbable nasal implant designed to be administered in a simple, in-office procedure and is intended to deliver six months of continuous anti-inflammatory drug therapy (7500µg mometasone furoate) to the sinonasal passages for the treatment of CRS with a single administration. LYR-210, being evaluated in the ENLIGHTEN Phase 3 clinical program, is intended for patients with and without nasal polyps. The company’s therapies are intended to treat the estimated four million CRS patients in the United States who fail medical management each year. For more information, please visit www.lyratx.com and follow us on LinkedIn.

Forward-Looking Statements
This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. All statements contained in this press release that do not relate to matters of historical fact should be considered forward-looking statements, including statements regarding whether LYR-210 could potentially benefit patients with CRS, the completion of the Company’s ENLIGHTEN 2 Phase 3 clinical trial, and the timing of the release of topline data from the ENLIGHTEN 2 Phase 3 clinical trial. These statements are neither promises nor guarantees, but involve known and unknown risks, uncertainties and other important factors that may cause the Company's actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements. These and other important factors discussed under the caption "Risk Factors" in the Company's Quarterly Report on Form 10-Q filed with the SEC on November 12, 2024 and its other filings with the SEC could cause actual results to differ materially from those indicated by the forward-looking statements made in this press release. Any such forward-looking statements represent management's estimates as of the date of this press release. While the Company may elect to update such forward-looking statements at some point in the future, it disclaims any obligation to do so, even if subsequent events cause its views to change.

Contact Information: Jason Cavalier, Chief Financial Officer 917.584.7668 jcavalier@lyratx.com Media Contact: Kathryn Morris, The Yates Network LLC 914.204.6412 kathryn@theyatesnetwork.com