Aura Biosciences Reports Second Quarter 2025 Financial Results and Business Highlights

Rhea-AI Summary

Aura Biosciences (NASDAQ: AURA) reported Q2 2025 financial results and clinical progress updates. The company strengthened its financial position with a $75 million equity financing, extending cash runway into H1 2027. Current cash position stands at $177.3 million.

Key clinical developments include the ongoing global Phase 3 CoMpass trial in early choroidal melanoma, with over 240 patients registered for pre-screening and expected completion by end of 2025. The company is also advancing a Phase 1b/2 trial in non-muscle invasive bladder cancer (NMIBC) and expanding its ocular oncology program to include metastases to the choroid and cancers of the ocular surface.

Q2 2025 financials showed increased R&D expenses of $22.9 million (vs $16.9M in Q2 2024) and slightly decreased G&A expenses of $5.7 million (vs $5.9M in Q2 2024). Net loss widened to $27.0 million compared to $20.3 million in Q2 2024.

Positive

• None.

Negative

• Net loss increased to $27.0 million from $20.3 million year-over-year
• R&D expenses increased by 35.5% to $22.9 million year-over-year

Insights

Biotechnology Clinical Development Expert

Aura's clinical programs advance with $75M financing extending runway to 2027, while losses widened to $27M amid strategic Phase 3 investments.

Aura Biosciences is advancing two key clinical programs for their lead candidate bel-sar: a global Phase 3 registration trial in early choroidal melanoma (eye cancer) and a Phase 1b/2 trial in non-muscle invasive bladder cancer (NMIBC). The CoMpass Phase 3 trial shows strong investigator interest with over 240 patients registered in pre-screening, suggesting potential completion by year-end 2025. This represents the first-ever registration-enabling study for early choroidal melanoma, addressing a significant unmet need.

The company has strategically expanded their ocular oncology pipeline to target three indications with a collective 60,000 annual patients in the US and Europe: early choroidal melanoma, metastases to the choroid, and cancers of the ocular surface. Their bladder cancer program is exploring two novel treatment approaches – an immune ablative design potentially eliminating the need for surgical resection, and a multimodal neoadjuvant approach.

From a financial perspective, Aura has strengthened their balance sheet with a $75 million equity financing, extending their cash runway into the first half of 2027. R&D expenses increased 35% year-over-year to $22.9 million in Q2, reflecting investments in the Phase 3 trial and manufacturing development. The net loss widened to $27.0 million from $20.3 million in the same quarter last year. While losses are expanding, this appears to be strategic investment in their late-stage clinical program that could potentially lead to their first commercial product.

The company also filed a patent application for a new bladder cancer formulation of bel-sar that could extend IP protection to 2046, enabling more convenient in-office urologist procedures with improved storage characteristics. This formulation innovation could prove crucial for practical clinical implementation if the therapy receives approval.

Biotech Financial Analyst

Aura's $75M raise provides runway into 2027, but increased R&D spend drives wider $27M quarterly loss as trials advance.

The $75 million equity financing Aura secured represents a critical runway extension during a pivotal clinical development period. Their current cash position of $177.3 million is now expected to fund operations into the first half of 2027, providing approximately two years of operating capital. This runway appears strategically timed to potentially carry them through completion of their Phase 3 CoMpass trial in early choroidal melanoma, where enrollment might finish by late 2025.

The company's quarterly R&D expenses increased 35.5% to $22.9 million versus $16.9 million in Q2 2024, driven by the Phase 3 trial progression and manufacturing costs for their lead candidate bel-sar. This escalation in research spending is expected during late-stage clinical development but contributed to a wider net loss of $27.0 million compared to $20.3 million year-over-year – a 33% increase in cash burn rate.

Aura did manage to slightly reduce G&A expenses to $5.7 million from $5.9 million in the same quarter last year, showing some operational discipline. However, stock-based compensation within G&A increased to $1.8 million from $1.6 million, representing over 31% of total G&A expenses.

The company's clinical portfolio expansion strategy across multiple ocular oncology indications and bladder cancer represents significant market potential but also increased development complexity and costs. The recent patent application for a new bladder cancer formulation could extend IP protection to 2046, potentially creating long-term commercial value if clinical trials succeed.

While the cash position appears adequate for near-term needs, investors should monitor burn rate acceleration, as additional financing might be required if trials extend beyond current timelines or if the company begins pre-commercial activities ahead of potential approval. The extended runway does, however, provide negotiating leverage should they seek partnerships or additional financing in coming quarters.

Continued Clinical Program Execution in the Phase 3 CoMpass Trial in Early Choroidal Melanoma and the Phase 1b/2 Trial in Non-Muscle Invasive Bladder Cancer (NMIBC)

Strengthened Balance Sheet with $75 Million Equity Financing; Cash Position Expected to Fund Operations into the First Half of 2027

BOSTON, Aug. 13, 2025 (GLOBE NEWSWIRE) -- Aura Biosciences, Inc. (NASDAQ: AURA), a clinical-stage biotechnology company developing precision therapies for solid tumors designed to preserve organ function, today reported financial results for the second quarter ended June 30, 2025, and provided recent business highlights.

“We continued to focus on execution in our clinical programs in the second quarter, including our ongoing global Phase 3 CoMpass trial in early choroidal melanoma and our Phase 1b/2 trial in NMIBC,” said Elisabet de los Pinos, Ph.D., Chief Executive Officer of Aura. “With the successful completion of our recent equity financing, we believe we are well positioned to advance the clinical development of bel-sar in our ocular and urologic oncology programs, where we believe our unique mechanism of action has the potential to meaningfully impact the lives of patients.”

Recent Pipeline Developments

Early Choroidal Melanoma

Ongoing Phase 3 CoMpass Trial: CoMpass is the first registration-enabling study in early choroidal melanoma. The study is a global, Phase 3, randomized trial evaluating bel-sar treatment against a sham control arm utilizing an enrichment strategy to enroll approximately 100 patients with documented tumor growth.

The CoMpass trial is actively enrolling globally. To identify patients meeting the enrichment criteria of documented growth, the Company implemented a pre-screening ‘run in’ period. Investigators have registered over 240 patients in this pre-screening tool as having met initial enrollment criteria for the study, highlighting the global need for a frontline vision-preserving therapy. With this progress globally, the Company believes study enrollment may be completed as early as the end of 2025.

The Company previously received Orphan Drug Designation from the FDA and the European Medicines Agency and Fast Track designation from the FDA for the treatment of early choroidal melanoma. The CoMpass trial is under a Special Protocol Assessment agreement with the FDA.

Additional Ocular Oncology Indications

In addition to early choroidal melanoma, bel-sar is in development for metastases to the choroid and cancers of the ocular surface. These three ocular oncology indications have a collective annual incidence of greater than 60,000 patients in the United States and Europe.

Metastases to the Choroid

Metastases to the choroid is an indication with high unmet medical need and no approved therapies. Bel-sar has the potential to treat a wide variety of tumor types that metastasize from several primary tumors. The Company has initiated a Phase 2 clinical trial in metastases to the choroid from breast and lung cancer and have activated sites with patients in prescreening in the United States. The Company is currently implementing a protocol amendment for the Phase 2 trial to broaden the inclusion criteria beyond breast and lung cancer to include all metastases from different solid tumors, an approach supported by pre-clinical models that demonstrate robust efficacy across a range of solid tumors. The Company believes that this approach, in addition to advancing bel-sar in metastases to the choroid, can provide clinical insights into multiple tumor types that could be impacted by bel-sar. The Company expects initial data from this trial in 2025.

Metastases to the choroid represents the second potential ocular oncology indication for bel-sar, affecting approximately 20,000 patients annually in the United States and Europe. The Company previously received FDA Fast Track designation for bel-sar in this indication.

Cancers of the Ocular Surface

The Company’s third potential ocular oncology indication is cancers of the ocular surface, which affects approximately 35,000 patients in the United States and Europe annually and has no approved therapies. The Company’s pre-clinical activities in cancers of the ocular surface remain on track, and we plan to have initial data from an early proof of concept Phase 1 clinical trial in 2026.

Bladder Cancer

Ongoing Phase 1b/2 Trial: Based on the positive data from the Phase 1 window of opportunity trial, the Company is advancing the development of bel-sar in NMIBC. The ongoing Phase 1b/2 trial will evaluate additional doses and cycles of bel-sar in approximately 26 intermediate and high-risk NMIBC patients. The trial will evaluate two approaches: an immune ablative design and a multimodal neoadjuvant design. In the immune ablative approach, bel-sar will be administered in two cycles without the need for a transurethral resection of the bladder tumor (TURBT). In the multimodal neoadjuvant cohorts, bel-sar will be administered in two cycles ahead of TURBT. For both approaches, patients will be monitored for response assessments and recurrence at 3, 6, 9, and 12 months. This trial is actively enrolling and remains on track.

Patent Application Filed for New Formulation of Bel-sar for Use in Bladder Cancer: The Company has filed a patent application with the U.S. Patent and Trademark Office for a new formulation of bel-sar for use in urologic oncology, which if issued, would provide patent coverage for this formulation into 2046. This new formulation is designed to enable convenient in-office urologist procedures with enhanced storage and handling at refrigerated conditions (2-8 Celsius).

Second Quarter 2025 Financial Results

• As of June 30, 2025, Aura had cash and cash equivalents and marketable securities totaling $177.3 million. The Company believes its current cash and cash equivalents and marketable securities are sufficient to fund its operations into the first half of 2027.
  

• Research and development expenses increased to $22.9 million for the three months ended June 30, 2025 from $16.9 million for the three months ended June 30, 2024, primarily due to ongoing clinical and CRO costs associated with the progression of our global Phase 3 trial of bel-sar in early choroidal melanoma and manufacturing and development costs for bel-sar.
  

• General and administrative expenses decreased to $5.7 million for the three months ended June 30, 2025 from $5.9 million for the three months ended June 30, 2024. General and administrative expenses include $1.8 million and $1.6 million of stock-based compensation for the three months ended June 30, 2025 and 2024, respectively. The decrease was primarily driven by reduced professional fees.

• Net loss for the three months ended June 30, 2025 was $27.0 million compared to $20.3 million for the three months ended June 30, 2024.
  

About Aura Biosciences

Aura Biosciences is a clinical-stage biotechnology company focused on developing precision therapies for solid tumors that aim to preserve organ function. Our lead candidate, bel-sar (AU-011), is currently in late-stage development for early choroidal melanoma and in early-stage development in other ocular oncology indications and bladder cancer. Aura Biosciences is headquartered in Boston, MA. Our mission is to grow as an innovative global oncology company that positively transforms the lives of patients.

For more information, visit aurabiosciences.com. Follow us on X (formerly Twitter) @AuraBiosciences and visit 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, as amended, and other federal securities laws. Any statements that are not statements of historical fact may be deemed to be forward-looking statements. Words such as “may,” “will,” “could,” “should,” “expects,” “intends,” “plans,” “anticipates,” “believes,” “estimates,” “predicts,” “projects,” “seeks,” “endeavor,” “potential,” “continue” or the negative of such words or other similar expressions can be used to identify forward-looking statements. These forward-looking statements include express or implied statements regarding Aura’s future expectations, plans and prospects, including, without limitation, statements regarding the therapeutic potential of bel-sar for the treatment of multiple cancers; statements regarding Aura’s plans and expectations for its ongoing and future clinical trials of bel-sar in multiple oncology indications, including with respect to clinical trial initiations; statements regarding the timing and plans to present initial data with respect to its Phase 2 clinical trial of bel-sar for the treatment of metastases to the choroid and Phase 1b/2 clinical trial of bel-sar for the treatment of NMIBC; statements regarding Aura’s expectations for an improved quality of life of patients after treatment with bel-sar and changes to the treatment paradigm for patients; statements regarding Aura’s expectations for the estimated patient populations and related market opportunities for bel-sar; and statements regarding the Company’s expected cash runway.

The forward-looking statements in this press release are neither promises nor guarantees, and investors should not place undue reliance on these forward-looking statements because they involve known and unknown risks, uncertainties and other factors, many of which are beyond Aura’s control and which could cause actual results to differ materially from those expressed or implied by these forward-looking statements, including, without limitation, uncertainties inherent in clinical trials and in the availability and timing of data from ongoing clinical trials; the expected timing for submissions for regulatory approval or review by governmental authorities; the risk that the results of Aura’s preclinical and clinical trials may not be predictive of future results in connection with future clinical trials; the risk that early or interim data from ongoing clinical trials may not be predictive of final data from completed clinical trials; the risk that governmental authorities may disagree with Aura’s clinical trial designs, even where Aura has obtained agreement with governmental authorities on the design of such trials, such as the Phase 3 special protocol assessment agreement with the U.S. Food and Drug Administration; whether Aura will receive regulatory approvals to conduct trials or to market products; whether Aura’s cash resources will be sufficient to fund its foreseeable and unforeseeable operating expenses and capital expenditure requirements; Aura’s ongoing and planned preclinical activities; and Aura’s ability to initiate, enroll, conduct or complete ongoing and planned clinical trials. These risks, uncertainties and other factors include those risks and uncertainties described under the heading “Risk Factors” in Aura’s most recent Annual Report on Form 10-K and Quarterly Report on Form 10-Q filed with the United States Securities and Exchange Commission (SEC) and in subsequent filings made by Aura with the SEC, which are available on the SEC’s website at www.sec.gov/. Except as required by law, Aura disclaims any intention or responsibility for updating or revising any forward-looking statements contained in this press release in the event of new information, future developments or otherwise. These forward-looking statements are based on Aura’s current expectations and speak only as of the date hereof and no representations or warranties (express or implied) are made about the accuracy of any such forward-looking statements.

Investor and Media Relations Contact:

Alex Dasalla

Head of Investor Relations and Corporate Communications

IR@aurabiosciences.com

Aura Biosciences, Inc. Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) (in thousands, except share and per share amounts)
	Three Months Ended June 30,								Six Months Ended June 30,
	2025				2024				2025				2024
Operating Expenses:
Research and development	$	22,882			$	16,879			$	46,225			$	33,932
General and administrative		5,731				5,883				11,423				11,145
Total operating expenses		28,613				22,762				57,648				45,077
Total operating loss		(28,613	)			(22,762	)			(57,648	)			(45,077	)
Other income (expense):
Interest income, including amortization and accretion income		1,678				2,451				3,271				5,137
Other expense		(36	)			(26	)			(59	)			(57	)
Total other income		1,642				2,425				3,212				5,080
Loss before income taxes		(26,971	)			(20,337	)			(54,436	)			(39,997	)
Income tax provision, net		(48	)			—				(66	)			(46	)
Net loss	$	(27,019	)		$	(20,337	)		$	(54,502	)		$	(40,043	)
Net loss per common share—basic and diluted	$	(0.47	)		$	(0.41	)		$	(1.01	)		$	(0.81	)
Weighted average common stock outstanding—basic and diluted		58,015,718				49,548,120				54,092,728				49,500,032
Comprehensive loss:
Net loss	$	(27,019	)		$	(20,337	)		$	(54,502	)		$	(40,043	)
Other comprehensive items:
Unrealized loss on marketable securities		(88	)			(201	)			(226	)			(722	)
Currency translation adjustment		8				—				(12	)			—
Total other comprehensive loss		(80	)			(201	)			(238	)			(722	)
Total comprehensive loss	$	(27,099	)		$	(20,538	)		$	(54,740	)		$	(40,765	)

Aura Biosciences, Inc. Condensed Consolidated Balance Sheets (Unaudited) (in thousands, except share and per share amounts)
	June 30, 2025				December 31, 2024
Assets
Current assets:
Cash and cash equivalents	$	107,367			$	31,693
Marketable securities		69,944				119,401
Prepaid expenses and other current assets		6,647				9,529
Total current assets		183,958				160,623
Restricted cash and deposits		768				768
Right-of-use assets - operating lease		16,622				17,379
Other long-term assets		185				518
Property and equipment, net		2,864				3,215
Total Assets	$	204,397			$	182,503
Liabilities and Stockholders’ Equity
Current liabilities:
Accounts payable		1,286				2,304
Short-term operating lease liability		3,196				3,149
Accrued expenses and other current liabilities		10,370				9,460
Total current liabilities		14,852				14,913
Long-term operating lease liability		14,916				15,620
Total Liabilities		29,768				30,533
Commitments and Contingencies
Stockholders’ Equity:
Common stock, $0.00001 par value, 150,000,000 authorized at June 30, 2025 and December 31, 2024, and 62,071,050 and 49,998,279 shares issued and outstanding at June 30, 2025 and December 31, 2024, respectively		—				—
Additional paid-in capital		603,333				525,934
Accumulated deficit		(428,729	)			(374,227	)
Accumulated other comprehensive income		25				263
Total Stockholders’ Equity		174,629				151,970
Total Liabilities and Stockholders’ Equity	$	204,397			$	182,503

FAQ

What were Aura Biosciences' (AURA) key financial results for Q2 2025?

Aura reported cash position of $177.3 million, net loss of $27.0 million, R&D expenses of $22.9 million, and G&A expenses of $5.7 million. The company secured a $75 million equity financing.

What is the status of AURA's Phase 3 CoMpass trial in early choroidal melanoma?

The Phase 3 CoMpass trial has over 240 patients registered for pre-screening and is expected to complete enrollment by the end of 2025. The trial is the first registration-enabling study in early choroidal melanoma.

How long will Aura Biosciences' current cash position last?

Aura's current cash position of $177.3 million, including the recent $75 million equity financing, is expected to fund operations into the first half of 2027.

What are the main clinical programs in Aura Biosciences' pipeline?

Aura's main clinical programs include the Phase 3 CoMpass trial in early choroidal melanoma, Phase 1b/2 trial in NMIBC, Phase 2 trial in choroidal metastases, and development programs for cancers of the ocular surface.

What new patent developments did AURA announce for its bladder cancer program?

Aura filed a patent application for a new formulation of bel-sar for urologic oncology use, which if issued, would provide patent protection until 2046. The formulation enables convenient in-office procedures with enhanced storage at 2-8 Celsius.