Biggest changeWe can terminate the agreements at any time without penalty, and if terminated, we would be liable only for services through the termination date plus non-cancellable CRO obligations to third parties. 68 Results of Operations Years Ended December 31, 2023 and 2022 (in thousands except percentages) Year Ended December 31, Change 2023 2022 Amounts % Revenues: Product sales, net $ 14,232 $ 39,905 $ (25,673 ) -64 % License and collaboration agreements 30,797 362 30,435 8407 % Royalty income 989 1,137 (148 ) -13 % Total revenues 46,018 41,404 4,614 11 % Operating expenses: Cost of sales, excluding amortization of acquired intangible assets 4,632 8,326 (3,694 ) -44 % Research and development 64,662 49,642 15,020 30 % Sales and marketing 11,689 25,507 (13,818 ) -54 % General and administrative 40,102 34,817 5,285 15 % Amortization of acquired intangible assets — 2,050 (2,050 ) -100 % Impairment of acquired intangible assets — 20,699 (20,699 ) -100 % Total operating expenses 121,085 141,041 (19,956 ) -14 % Loss from operations (75,067 ) (99,637 ) 24,570 -25 % Other income (expense): Interest and other income, net 6,949 2,131 4,818 226 % Interest expense (1,247 ) (3,189 ) 1,942 -61 % Gain (loss) on extinguishment of debt (1,347 ) (1,559 ) 212 -14 % Total other income (expense), net 4,355 (2,617 ) 6,972 -266 % Net loss before income taxes $ (70,712 ) $ (102,254 ) $ 31,542 -31 % Provision for income taxes $ (83 ) $ — $ (83 ) Net loss $ (70,795 ) $ (102,254 ) $ 31,459 -31 % Net loss per share - basic and diluted $ (1.82 ) $ (2.74 ) $ 0.92 -34 % Weighted average shares outstanding - basic and diluted 38,904 37,317 1,587 4 % Net loss $ (70,795 ) $ (102,254 ) $ 31,459 -31 % Product Sales, net Product sales, net represents the gross sales of YUTIQ ® and DEXYCU ® less provisions for product sales allowances.
Biggest changeResults of Operations Years Ended December 31, 2024 and 2023 (in thousands except percentages) Year ended December 31, Change 2024 2023 Amounts % Revenues: Product sales, net $ 3,164 $ 14,232 $ (11,068 ) -78 % License and collaboration agreements 38,496 30,797 7,699 25 % Royalty income 1,613 989 624 63 % Total revenues 43,273 46,018 (2,745 ) -6 % Operating expenses: Cost of sales 3,712 4,632 (920 ) -20 % Research and development 132,926 64,662 68,264 106 % Sales and marketing 131 11,689 (11,558 ) -99 % General and administrative 52,358 40,102 12,256 31 % Total operating expenses 189,127 121,085 68,042 56 % Loss from operations (145,854 ) (75,067 ) (70,787 ) 94 % Other income (expense): Interest and other income, net 15,088 6,949 8,139 117 % Interest expense (14 ) (1,247 ) 1,233 -99 % Gain (loss) on extinguishment of debt — (1,347 ) 1,347 -100 % Total other income, net 15,074 4,355 10,719 246 % Net loss before income taxes $ (130,780 ) $ (70,712 ) $ (60,068 ) 85 % Provision for income taxes $ (90 ) $ (83 ) $ (7 ) 8 % Net loss $ (130,870 ) $ (70,795 ) $ (60,075 ) 85 % Net loss per share - basic and diluted $ (2.32 ) $ (1.82 ) $ (0.50 ) 27 % Weighted average shares outstanding - basic and diluted 56,298 38,904 17,394 45 % Product Sales, net Product sales, net represents the gross sales of YUTIQ ® .
By their nature, these estimates, judgments and assumptions are subject 66 to an inherent degree of uncertainty, and management evaluates them on an ongoing basis for changes in facts and circumstances. Changes in estimates are recorded in the period in which they become known. Actual results may differ from our estimates under different assumptions or conditions.
By their nature, these estimates, judgments and assumptions are subject to an inherent degree of uncertainty, and management evaluates them on an ongoing basis for changes in facts and circumstances. Changes in estimates are recorded in the period in which they become known. Actual results may differ from our estimates under different assumptions or conditions.
During the fiscal year ended December 31, 2023, we sold 15,294,116 shares in the December 2023 underwritten stock offering for gross proceeds of $230.0 million, and we sold 902,769 shares of our Common Stock utilizing our at-the-market facility (ATM) at a weighted average price of $11.05 per share for gross proceeds of approximately $10.0 million.
During the year ended December 31, 2023, we sold 15,294,116 shares in the December 2023 underwritten stock offering for gross proceeds of $230.0 million, and we sold 902,769 shares of our Common Stock utilizing our at-the-market facility (ATM) at a weighted average price of $11.05 per share for gross proceeds of approximately $10.0 million.
These reserves were based on the amounts earned, or to be claimed on the related sales, and were classified either as reductions of product revenue and accounts receivable or a current liability, depending on how the amount was to be settled.
These reserves were based on the amounts earned, or to be 69 claimed on the related sales, and were classified either as reductions of product revenue and accounts receivable or a current liability, depending on how the amount was to be settled.
Applying the practical expedient in paragraph 606-10-32-18, we do not assess whether a significant financing component exists if the period between when we perform our obligations under the contract and when the customer pays is one year or less. None of our contracts contained a significant financing component as of December 31, 2023.
Applying the practical expedient in paragraph 606-10-32-18, we do not assess whether a significant financing component exists if the period between when we perform our obligations under the contract and when the customer pays is one year or less. None of our contracts contained a significant financing component as of December 31, 2024.
Actual cash requirements could differ from management’s projections due to many factors including additional investments in research and development programs, clinical trial expenses for EYP-1901and potentially EYP-2301, competing technological and market developments and the costs of any strategic acquisitions and/or development of complementary business opportunities.
Actual cash requirements could differ from management’s projections due to many factors including additional investments in research and development programs, clinical trial expenses for DURAVYU and potentially EYP-2301, competing technological and market developments and the costs of any strategic acquisitions and/or development of complementary business opportunities.
This was further offset by changes in working capital of $58.9 million, including $44.5 million of deferred revenue related to the agreement to license YUTIQ ® product rights to Alimera, and $14.4 million of other working capital changes.
This was further offset by changes in working capital of $58.9 million, including $44.5 million of deferred revenue related to the agreement to license YUTIQ ® product rights to ANI, and $14.4 million of other working capital changes.
The following Management’s Discussion and Analysis (MD&A) provides a narrative of our results of operations for the year ended December 31, 2023, and the comparable period ended December 31, 2022, respectively, and our financial position as of December 31, 2023 and 2022, respectively.
The following Management’s Discussion and Analysis (MD&A) provides a narrative of our results of operations for the year ended December 31, 2024, and the comparable period ended December 31, 2023, respectively, and our financial position as of December 31, 2024 and 2023, respectively.
On May 17, 2023, we utilized a portion of the Upfront Payment from the Alimera PRA (see Note 3) to repay in full all outstanding amounts under the SVB Loan Agreement. The SVB Loan Agreement was terminated, and all security interests and other liens granted to or held by the Lender were terminated and released.
On May 17, 2023, we utilized a portion of the Upfront Payment from the ANI PRA (see Note 3) and repaid in full all outstanding amounts under the SVB Loan Agreement. The SVB Loan Agreement was then terminated, and all security interests and other liens granted to or held by the Lender were terminated and released.
During the year ended December 31, 2023, the Company recognized $2.1 million of revenue from sales of product supply to Alimera under the commercial supply agreement (CSA). Customer demand had a direct impact on product orders from our specialty distributors that we recorded as net product sales.
During the year ended December 31, 2024, the Company recognized $2.6 million of revenue from sales of product supply to ANI under the commercial supply agreement (CSA). Customer demand had a direct impact on product orders from our specialty distributors that we recorded as net product sales.
FINANCIAL STATEMEN TS AND SUPPLEMENTARY DATA The information required by this item may be found on pages F-1 through F-29 of this Annual Report on Form 10-K. ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOU NTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE None.
FINANCIAL STATEMEN TS AND SUPPLEMENTARY DATA The information required by this item may be found in this Annual Report on Form 10-K. ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOU NTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE None.
For those milestone payments which are contingent on the occurrence of particular future events, we determine that these need to be considered for inclusion in the calculation of total consideration from the contract as a component of variable consideration using the most-likely amount method.
For those milestone payments which are contingent on the occurrence of particular future events, we determine that these need to be considered for inclusion in the calculation of total consideration from the contract as a component of variable consideration using the most-likely amount method. As such, we assess each milestone to determine the probability and substance behind achieving each milestone.
The amount of additional capital we will require will be influenced by many factors, including, but not limited to: 1. the scope, progress, results, and costs of clinical trials of EYP-1901, as a sustained delivery intravitreal VEGF treatment for wet AMD, NPDR, and DME 2. our expectations regarding the timing and clinical development of our product candidates, including EYP-1901 and EYP-2301; 3. the duration, scope and outcome of the DOJ Subpoena and its impact on our financial condition, results of operations, or cash flows; 4. whether and to what extent we internally fund, whether and when we initiate, and how we conduct additional pipeline product development programs; 5. payments we receive under any new collaboration agreements or payments expected from existing agreements; 6. whether and when we are able to enter into strategic arrangements for our products or product candidates and the nature of those arrangements; 7. the costs involved in preparing, filing, prosecuting, maintaining, defending and enforcing any patent claims; 8. changes in our operating plan, resulting in increases or decreases in our need for capital; and 9. our views on the availability, timing, and desirability of raising capital. 71 We do not know if additional capital will be available when needed or on terms favorable to us or our stockholders.
The amount of additional capital we will require will be influenced by many factors, including, but not limited to: 1. the scope, progress, results, and costs of clinical trials of DURAVYU, as a sustained delivery intravitreal treatment for wet AMD and DME; 73 2. our expectations regarding the timing and clinical development of our product candidates, including DURAVYU and EYP-2301; 3. the duration, scope, and outcome of the DOJ Subpoena and its impact on our financial condition, results of operations, or cash flows; 4. whether and to what extent we internally fund, whether and when we initiate, and how we conduct additional pipeline product development programs; 5. payments we receive under any new collaboration agreements or payments expected from existing agreements; 6. whether and when we are able to enter into strategic arrangements for our products or product candidates and the nature of those arrangements; 7. the costs involved in preparing, filing, prosecuting, maintaining, defending, and enforcing any patent claims; 8. the costs and timing to implement corrective and preventive actions required by the Warning Letter to the satisfaction of the FDA; 9. changes in our operating plan, resulting in increases or decreases in our need for capital; and 10. our views on the availability, timing, and desirability of raising capital.
EYP-1901 is presently in Phase 2 clinical trials as a sustained delivery treatment for wet age-related macular degeneration (wet AMD), the leading cause of vision loss among people 50 years of age and older in the United States, non-proliferative diabetic retinopathy (NPDR), and diabetic macular edema (DME).
DURAVYU is presently in Phase 3 clinical trials as a sustained delivery treatment for wet age-related macular degeneration (wet AMD), the leading cause of vision loss among people 50 years of age and older in the United States, and in Phase 2 clinical trial for diabetic macular edema (DME).
Net product revenue represented product purchased by our distributors whereas customer demand represented purchases of product by physician practices and ASCs from our specialty distributors. License and collaboration agreement License and collaboration agreement revenues increased by $30.4 million, to $30.8 million in 2023 compared to $0.4 million in 2022.
Net product revenue represented product purchased by our distributors whereas customer demand represented purchases of product by physician practices and ASCs from our specialty distributors. 71 License and collaboration agreement License and collaboration agreement revenues increased by $7.7 million, to $38.5 million in 2024 compared to $30.8 million for 2023.
Our pipeline leverages our proprietary Durasert E technology for sustained intraocular drug delivery. The Company’s lead product candidate, EYP-1901, is an investigational sustained delivery treatment for anti-vascular endothelial growth factor (anti-VEGF) -mediated retinal diseases combining vorolanib, a selective and patent-protected tyrosine kinase inhibitor with Durasert E .
The Company’s lead product candidate, DURAVYU, is an investigational sustained delivery treatment for anti-vascular endothelial growth factor (anti-VEGF) mediated retinal diseases combining vorolanib, a selective and patent-protected tyrosine kinase inhibitor with bioerodible Durasert E.
As such, we assess each milestone to determine the 67 probability and substance behind achieving each milestone. Given the inherent uncertainty associated with these future events, we will not recognize revenue from such milestones until there is a high probability of occurrence, which typically occurs near or upon achievement of the event.
Given the inherent uncertainty associated with these future events, we will not recognize revenue from such milestones until there is a high probability of occurrence, which typically occurs near or upon achievement of the event.
Net cash provided by financing activities for fiscal 2023 totaled $187.1 million and consisted of the following: (i) $215.9 million of net proceeds from the issuance of 15,294,116 shares of our common stock; (ii) $40.5 million used to pay off the SVB loan; (iii) $1.4 million used to pay debt extinguishment costs related to the SVB loan; (iv) $9.6 million of net proceeds from the issuance of 902,769 shares of our common stock sold utilizing our ATM (v) $3.4 million of proceeds from exercise of employee stock options and stock issued under our employee stock purchase plan Net cash used in financing activities for fiscal 2022 totaled $0.7 million and consisted of the following: (i) $38.2 million used to pay off the CRG loan; (ii) $2.3 million used to pay debt extinguishment costs related to the CRG loan; (iii) $30.0 million of proceeds from the issuance for long-term debt related to the SVB loan; and (iv) $10.5 million of net proceeds from the revolving facility. 72 Off-Balance Sheet Arrangements We do not have any off-balance sheet arrangements that have, or are reasonably likely to have, a current or future effect on our financial condition, changes in financial condition, revenues or expenses, results of operations, liquidity, capital expenditures, or capital resources that would be material to investors.
Net cash used in investing activities for the year ended December 31, 2023, consisted of $3.5 million for the purchase of property and equipment, partially offset by $0.2 million of net cash provided by the sale of marketable securities. 74 Net cash provided by financing activities for the year ended December 31, 2024 totaled $164.0 million and consisted of the following: (i) $163.3 million of net proceeds from the issuance of 14,636,363 shares of our common stock in follow on offering and issuance of 1,299,506 shares of our common stock sold utilizing our ATM; and (ii) $1.5 million of proceeds from exercise of employee stock options and stock issued under our employee stock purchase plan Net cash provided by financing activities for fiscal 2023 totaled $187.1 million and consisted of the following: (i) $215.9 million of net proceeds from the issuance of 15,294,116 shares of our common stock; (ii) $40.5 million used to pay off the SVB loan; (iii) $1.4 million used to pay debt extinguishment costs related to the SVB loan; (iv) $9.6 million of net proceeds from the issuance of 902,769 shares of our common stock sold utilizing our ATM; and (v) $3.4 million of proceeds from exercise of employee stock options and stock issued under our employee stock purchase plan Off-Balance Sheet Arrangements We do not have any off-balance sheet arrangements that have, or are reasonably likely to have, a current or future effect on our financial condition, changes in financial condition, revenues or expenses, results of operations, liquidity, capital expenditures, or capital resources that would be material to investors.
Collaboration, licensing, or other agreements may not be available on favorable terms, or at all. If we seek to sell our equity securities, we do not know whether and to what extent we will be able to do so, or on what terms.
If we seek to sell our equity securities, we do not know whether and to what extent we will be able to do so, or on what terms.
The MD&A should be read together with our consolidated financial statements and related notes included on pages F-1 through F-29 of this Annual Report on Form 10-K. Overview We are a company committed to developing and commercializing innovative therapeutics to help improve the lives of patients with serious retinal diseases.
The MD&A should be read together with our consolidated financial statements and related notes included in this Annual Report on Form 10-K. Overview We are a company committed to developing and commercializing innovative therapeutics to help improve the lives of patients with serious retinal diseases. Our pipeline leverages our proprietary bioerodible Durasert E technology for sustained intraocular drug delivery.
Net cash used in investing activities for the year ended December 31, 2022, consisted of $15.1 million of net cash used to purchase marketable securities, as well as $2.2 million for the purchase of property and equipment.
Net cash used in investing activities for the year ended December 31, 2024, consisted of $215.3 million of net cash purchases of marketable securities and $4.1 million for the purchase of property and equipment.
We incurred lower interest expense due to the repayment of the SVB Loan (as the term is defined below) on May 17, 2023.
Interest expense decreased by $1.2 million, or 99%, to $0.0 million for 2024, compared to $1.2 million for 2023. We incurred lower interest expense due to the repayment of the SVB Loan (as the term is defined below) on May 17, 2023.
Operating cash outflows for the year ended December 31, 2022 totaled $65.0 million, primarily due to our net loss of $102.3 million, reduced by $40.3 million of non-cash expenses, which included $20.7 million of impairment of the DEXYCU ® finite-lived intangible asset, $14.2 million of stock-based compensation, $2.1 million of amortization of intangible assets, $1.9 million of provision for excess and obsolete inventory, and $1.6 million of loss on extinguishment of debt.
Operating cash inflows for the year ended December 31, 2023, totaled $1.9 million, primarily due to our net loss of $70.8 million reduced by $13.8 million of non-cash expenses, which included $12.1 million of stock-based compensation, $1.3 million of loss on extinguishment of debt, and $0.7 million for the provision of excess and obsolete inventory.
This increase was driven by revenue recognized as the combined performance obligations under the Alimera license and supply agreement are fulfilled. Royalty Income Royalty income decreased by $0.1 million, or 13%, to $1.0 million in 2023 compared to $1.1 million in 2022.
This increase was driven by a full year of revenue recognized as the combined performance obligations under the ANI license and supply agreement are fulfilled, compared to eight months of recognition in the prior year. Royalty Income Royalty income increased by $0.6 million, or 63%, to $1.6 million in 2024 compared to $1.0 million for 2023.
We make our assessments of the services performed based on various factors, including reporting from third-party CROs and internal tracking of work performed during the period, which are subject to management’s judgment. Our financial obligations under the agreements are determined by the services that we request from time to time under the agreements.
In determining the prepaid and accrued balances, we make assessments of the services performed based on various factors, including reporting from third-party CROs and internal tracking of work performed during the period, which are subject to management’s judgment. Actual results could differ from our estimates.
Loss on extinguishment of debt in 2022 was for the early repayment of the loan made to the Company by CRG Servicing LLC on February 13, 2019 (CRG Loan) resulting in a $1.6 million non-cash write-off of the remaining balance of unamortized debt discount. 70 Recently Adopted and Recently Issued Accounting Pronouncements For a full discussion of recently adopted and recently issued accounting pronouncements, see Note 2, "Significant Accounting Policies" to the Consolidated Financial Statements included under Item 15, "Exhibits and Financial Statement Schedules." Liquidity and Capital Resources We have had a history of operating losses and an absence of significant recurring cash inflows from revenue, and at December 31, 2023, we had a total accumulated deficit of $742.1 million.
Recently Adopted and Recently Issued Accounting Pronouncements For a full discussion of recently adopted and recently issued accounting pronouncements, see Note 2, "Significant Accounting Policies" to the Consolidated Financial Statements included under Item 15, "Exhibits and Financial Statement Schedules." Liquidity and Capital Resources We have had a history of operating losses and an absence of significant recurring cash inflows from revenue, and at December 31, 2024, we had a total accumulated deficit of $873.0 million.
Gross proceeds to the Company in the offering, before underwriting discounts and estimated expenses of the offering, were approximately $230.0 million. R&D Highlights • In February 2023, we entered into a research collaboration with Rallybio Corporation to evaluate sustained delivery of their inhibitor of complement component 5 (C5) using our proprietary Durasert E technology for sustained intraocular drug delivery.
Sanders, M.D., FASRS to the Company’s Board of Directors. • In February 2023, we entered into a research collaboration with RallyBio Corporation to evaluate sustained delivery of their inhibitor of complement component 5 (C5) using our proprietary Durasert E technology for sustained intraocular drug delivery. The Company and Rally Bio terminated their research collaboration in Q1 of 2025.
Our operations have been financed primarily from public and private offerings of our common stock, issuance of debt and a combination of license fees, milestone payments, royalty income and other fees received from collaboration partners.
Our operations have been financed primarily from public and private offerings of our common stock, issuance of debt and a combination of license fees, milestone payments, royalty income and other fees received from collaboration partners. Financing Activities Also during the year ended December 31, 2024, we completed an underwritten public offering with gross proceeds of $161.0 million.
This decrease was primarily driven by (i) $10.5 million related to the discontinuation of YUTIQ ® commercialization activities due to the agreement that granted the license and rights to YUTIQ ® to Alimera in May 2023, (ii) discontinuation of promotional activities for DEXYCU ® in 2023 of $3.9 million, and (iii) $0.4 million of other marketing activities.
Sales and Marketing Sales and marketing expenses decreased by $11.6 million, or 99%, to $0.1 million for 2024 from $11.7 million for 2023. This decrease was primarily driven by discontinuation of YUTIQ ® commercialization activities due to the agreement that granted the license and rights to YUTIQ ® to ANI in May 2023.
Our consolidated statements of historical cash flows are summarized as follows (in thousands): Year Ended December 31, 2023 2022 Change Cash flows from operating activities: Net loss $ (70,795 ) $ (102,254 ) $ 31,459 Changes in operating assets and liabilities 58,882 (3,023 ) 61,905 Other adjustments to reconcile net loss to cash flows from operating activities: 13,788 40,272 (26,484 ) Net cash (used in) provided by operating activities $ 1,875 $ (65,005 ) $ 66,880 Net cash (used in) provided by investing activities $ (3,315 ) $ (17,265 ) $ 13,950 Net cash (used in) provided by financing activities $ 187,070 $ (690 ) $ 187,760 Operating cash inflows for the year ended December 31, 2023, totaled $1.9 million, primarily due to our net loss of $70.8 million reduced by $13.8 million of non-cash expenses, which included $12.1 million of stock-based compensation, $1.3 million of loss on extinguishment of debt, and $0.7 million for the provision of excess and obsolete inventory.
Our consolidated statements of historical cash flows are summarized as follows (in thousands): Year ended December 31, 2024 2023 Change Cash flows from operating activities: Net loss $ (130,870 ) $ (70,795 ) $ (60,075 ) Changes in operating assets and liabilities (27,773 ) 58,882 (86,655 ) Other adjustments to reconcile net loss to cash flows from operating activities: 32,417 13,788 18,629 Net cash (used in) provided by operating activities $ (126,226 ) $ 1,875 $ (128,101 ) Net cash (used in) provided by investing activities $ (219,355 ) $ (3,315 ) $ (216,040 ) Net cash provided by (used in) financing activities $ 164,022 $ 187,070 $ (23,048 ) Operating cash outflows for the year ended December 31, 2024, totaled $126.2 million, primarily due to our net loss of $130.9 million offset by $32.4 million of non-cash expenses, which included $36.7 million of stock-based compensation.
The decrease was primarily attributable to Ocumension Royalties. 69 Cost of Sales, Excluding Amortization of Acquired Intangible Assets Cost of sales, excluding amortization of acquired intangible assets, decreased by $3.7 million to $4.6 million for fiscal 2023 from $8.3 million in the prior year.
The increase was primarily attributable to increased Ocumension Therapeutics royalties from YUTIQ ® product sales in China. Cost of Sales Cost of sales decreased by $0.9 million to $3.7 million for 2024 from $4.6 million for 2023. This decrease was primarily due to lower commercial product sales year over year.
Product sales, net decreased by $25.7 million, or 64%, to $14.2 million for 2023 compared to $39.9 million for the prior year. This decrease was driven by license and rights for YUTIQ ® to Alimera in May 2023 and de minimis DEXYCU ® sales in 2023 due to the loss of pass-through reimbursement as of January 1, 2023.
Product sales, net decreased by $11.1 million, or 78%, to $3.2 million for 2024 compared to $14.2 million for 2023. This decrease was driven by the agreement to license YUTIQ ® product rights to ANI in May 2023.
Future Funding Requirements At December 31, 2023, we had cash, cash equivalents, and investments in marketable securities of $331.0 million. We expect that our cash and investments in marketable securities will fund our operating plan through topline data for the planned Phase 3 wet AMD pivotal trials into 2026.
Future Funding Requirements At December 31, 2024, we had cash, cash equivalents, and investments in marketable securities of $370.9 million. We expect that our cash and investments in marketable securities will enable us to fund our operations into 2027.
Amounts not expected to be recognized within one year following the balance sheet date are classified as non-current deferred revenue. Please refer to Note 3 for further details on the license and collaboration agreements into which we have entered and corresponding amounts of revenue recognized for the years ended December 31, 2023 and 2022.
Amounts not expected to be recognized within one year following the balance sheet date are classified as non-current deferred revenue.
This increase was attributable primarily to (i) $11.8 million in increased clinical trial costs, related to the ongoing Phase 2 DAVIO2 and PAVIA clinical trials, and (ii) $3.5 million of increased personnel related costs for investment in new employees across the research and clinical organizations. These increases were partially offset by a $0.2 million decrease in other administrative costs.
This increase was attributable primarily to (i) $26.6 million in increased clinical trial costs, related to the ongoing Phase 2 DAVIO2, PAVIA, and VERONA clinical trials of DURAVYU and initiation of Phase 3 LUGANO and LUCIA trials of DURAVYU, (ii) $21.4 million of increased personnel related costs across the research and clinical organizations, including a $13.8 million increase of stock-based compensation due mainly to increased share price of grants, (iii) $11.7 million in increased spend related to non clinical trial development of DURAVYU, and (iv) a $5.0 million milestone payment made in connection with the completion of a Phase 2 clinical trial.
This increase was attributable primarily to a (i) $3.4 million increase in personnel and related expenses, including a $0.7 million increase of stock-based compensation, and a (ii) $2.2 million increase in professional fees. These increases were partially offset by a $0.3 million decrease in other administrative costs.
General and Administrative General and administrative expenses increased by $12.3 million, or 31%, to $52.4 million for 2024 from $40.1 million for 2023. This increase was attributable primarily to a (i) $13.6 million increase in personnel and related expenses, including a $11.2 million increase of stock-based compensation due mainly to increased share price of grants.
There was no amortization or impairment of acquired intangible assets for 2023 due to the write-off of the DEXYCU ® intangible asset in the fourth quarter of 2022. Interest (Expense) Income Interest income from investments in marketable securities and institutional money market funds increased $4.8 million, to $6.9 million for 2023 compared to $2.1 million for the prior year.
This increase was partially offset by $1.3 million reduction in professional fees in 2024 compared to 2023. Interest (Expense) Income Interest income from investments in marketable securities and institutional money market funds increased by $8.1 million, to $15.1 million for 2024 compared to $6.9 million for 2023.
Duty has focused primarily on biotechnology and specialty pharmaceuticals clients for much of his career, advising senior executives and boards on a range of financing activities and strategic transactions. 65 • On December 8, 2023, we announced the closing of an underwritten public offering of 13,529,411 shares of our common stock, which included the exercise in full by the underwriters of their option to purchase an additional 1,764,705 shares of common stock, at the public offering price of $17.00 per share.
We sold 14,636,363 shares of our common stock, which included the exercise in full by the underwriters of their option to purchase an additional 1,909,090 shares of common stock. The shares of common stock were sold at a public offering price of $11.00 per share. • In October 2024, we announced the grand opening of our Northbridge, MA manufacturing facility.
We expect to initiate pivotal Phase 3 clinical trials in wet AMD in the second half of 2024. Fiscal 2023 Overview The fiscal year ended December 31, 2023, was highlighted by the following events: • In January 2023, we announced that Jay S.
Fiscal 2024 Overview The fiscal year ended December 31, 2024, was highlighted by the following events: • In March 2024, we announced the appointment of Ramiro Ribeiro, M.D., Ph.D. as Chief Medical Officer. Dr.
Recognition of Expense in Outsourced Clinical Trial Agreements We recognize research and development expense with respect to outsourced agreements for clinical trials with contract research organizations (CROs) as the services are provided, based on information provided by CROs and our assessment of the services performed.
Please refer to Note 3 for further details on the license and collaboration agreements into which we have entered and corresponding amounts of revenue recognized for the years ended December 31, 2024 and 2023. 70 Recognition of Expense in Outsourced Clinical Trial Agreements We record accruals for estimated ongoing research and development costs, including costs with respect to outsourced agreements for clinical trials with contract research organizations (CROs).