On May 11, 2023 Aura Biosciences Inc. (NASDAQ: AURA), a clinical-stage biotechnology company developing a novel class of virus-like drug conjugate (VDC) therapies for multiple oncology indications, reported its financial results for the first quarter ended March 31, 2023, and provided clinical development and operational highlights (Press release, Aura Biosciences, MAY 11, 2023, View Source [SID1234631487]).
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"We are encouraged by our recent interactions with the FDA in support of our global Phase 3 trial designed to enable us to develop the first vision preserving targeted therapy for the treatment of patients with early-stage choroidal melanoma, a disease with a high unmet medical need and no approved therapies," said Elisabet de los Pinos, Ph.D., Chief Executive Officer of Aura. "With a strong balance sheet, we are well-positioned to execute and advance our pipeline to meaningful clinical milestones."
Recent Pipeline Developments
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Aura is planning to initiate a potentially registration-enabling Phase 3 clinical trial in 1H 2023 to evaluate the safety and efficacy of Belzupacap Sarotalocan (bel-sar) for the first-line treatment of adult patients with early-stage choroidal melanoma (CM), a life-threatening rare disease with no approved therapies.
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The Phase 3 clinical trial design incorporates guidance and feedback from the FDA following a recent Type C meeting.
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The FDA recommended that the Phase 3 trial follow a standard three-arm randomized, controlled and masked design. The trial is intended to enroll approximately 100 patients and it will be randomized 2:1:2 to receive investigational therapeutic regimen bel-sar, low dose regimen bel-sar or a sham control. The primary efficacy analysis is planned to be a time to event composite endpoint that will compare the tumor control and visual acuity of the therapeutic regimen group to sham when the last patient meets 12 months of follow up.
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Enrollment is complete in the Phase 2 trial evaluating suprachoroidal (SC) administration of bel-sar for the first-line treatment of adult patients with early-stage CM. Updated interim data of patients treated with the therapeutic regimen intended to be used in the Phase 3 trial is on track to be presented in 2H 2023.
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Enrollment is ongoing for the Phase 1 trial of bel-sar for the treatment of non-muscle invasive bladder cancer (NMIBC). This represents an area of high unmet need with approximately 80,000 patients diagnosed in the United States every year. Aura received Fast Track Designation from the Oncology Division of the FDA for this indication in June 2022.
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The Phase 1 multi-center, open-label clinical trial is expected to enroll approximately 23 adult patients. The trial is designed to assess the safety and tolerability of bel-sar as a single agent. The primary endpoint of the Phase 1 trial is the incidence and severity of treatment-related adverse events, serious adverse events and/or the incidence of dose-limiting toxicities. The trial will provide histopathological evaluation after the local treatment to support bel-sar’s biological activity. Aura expects to report initial Phase 1 data in 2H 2023.
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Beyond early-stage CM, Aura continues to build its ocular oncology franchise. Aura’s goal is to initiate clinical development in choroidal metastasis, an indication with a high unmet medical need and no approved therapies, as the second ocular oncology indication. Aura received Fast Track Designation from the Oncology Division of the FDA for this indication in February 2023, and the Investigational New Drug application was opened in January 2023. Aura is on track to initiate start-up activities for the Phase 2 trial in 2H 2023.
Recent Corporate Events
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Enhanced Senior Leadership Team. In March 2023, Aura appointed Patrick Nealon as SVP, Clinical Development Operations. Mr. Nealon brings over 20 years of biopharmaceutical industry experience, leading the clinical development of therapeutics across multiple disease areas. Mr. Nealon will be responsible for overseeing all aspects of clinical operations as Aura transitions into late-stage clinical development.
First Quarter 2023 Financial Results
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As of March 31, 2023, Aura had cash and cash equivalents and marketable securities totaling $173.5 million. Aura believes its current cash and cash equivalents and marketable securities are sufficient to fund its operations into 2025.
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Research and development expenses increased to $14.4 million for the three months ended March 31, 2023 from $8.3 million for the three months ended March 31, 2022, primarily due to ongoing clinical costs associated with the progression of our Phase 2 study and CRO costs associated with the start of our global Phase 3 trial, manufacturing and development costs for bel-sar, and higher personnel expenses from growing headcount.
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General and administrative expenses increased to $5.0 million for the three months ended March 31, 2023 from $4.5 million for the three months ended March 31, 2022. General and administrative expenses include $1.1 million and $1.0 million of stock-based compensation for the three months ended March 31, 2023 and 2022, respectively. The increase was primarily driven by personnel expenses, as well as increases in general corporate expenses related to growth of the Company.
Net loss for the three months ended March 31, 2023 was $17.5 million compared to $12.8 million for the three months ended March 31, 2022.