Biggest changeOther Income (Expense) Other income (expense) consists primarily of income earned on our cash and cash equivalents offset by miscellaneous tax expenses and foreign currency exchange gains and losses. 85 Table of Contents Results of Operations Comparison of the Year Ended December 31, 2023 and 2022 Year Ended December 31, Change 2023 2022 Dollar Percentage Revenue $ 58,453 $ 41,418 $ 17,035 41 % Cost of revenue (excluding amortization of intangible assets) 17,961 13,570 4,391 32 Amortization of intangible assets 380 804 (424) (53) Gross profit 40,112 27,044 13,068 48 Gross margin 69 % 65 % Operating expenses: Sales and marketing 59,681 43,252 16,429 38 General and administrative 14,887 13,862 1,025 7 Research and development 9,619 8,937 682 8 Total operating expenses 84,187 66,051 18,136 27 Loss from operations (44,075) (39,007) (5,068) 13 Other expense: Interest expense (5,223) (4,051) (1,172) 29 Loss on extinguishment of debt — (1,228) 1,228 (100) Other income (expense) 2,634 (10) 2,644 NA Total other expense (2,589) (5,289) 2,700 (51) Net loss $ (46,664) $ (44,296) $ (2,368) 5 % Revenue Revenue increased by $17.0 million, or 41%, to $58.5 million for the year ended December 31, 2023 from $41.4 million for the year ended December 31, 2022.
Biggest changeOther Income Other income consists primarily of income earned on our cash and cash equivalents offset by miscellaneous tax expenses and foreign currency exchange gains and losses. 88 Table of Contents Results of Operations Comparison of the Year Ended December 31, 2024 and 2023 Year Ended December 31, Change 2024 2023 Dollar Percentage Revenue $ 69,300 $ 58,453 $ 10,847 19 % Cost of revenue (excluding amortization of intangible assets) 22,432 17,961 4,471 25 Amortization of intangible assets 380 380 — — Gross profit 46,488 40,112 6,376 16 Gross margin 67 % 69 % Operating expenses: Sales and marketing 64,648 59,681 4,967 8 General and administrative 14,722 14,887 (165) (1) Research and development 8,813 9,619 (806) (8) Total operating expenses 88,183 84,187 3,996 5 Other operating income: Gain on sale of product line 7,580 — 7,580 NA Loss from operations (34,115) (44,075) 9,960 (23) Other (expense) income: Interest expense (5,290) (5,223) (67) 1 Other income 1,420 2,634 (1,214) (46) Total other expense (3,870) (2,589) (1,281) 49 Loss before income tax benefit (37,985) (46,664) 8,679 (19) Income tax benefit 144 — 144 NA Net loss $ (37,841) $ (46,664) $ 8,823 (19) % Revenue Revenue increased by $10.8 million, or 19%, to $69.3 million for the year ended December 31, 2024 from $58.5 million for the year ended December 31, 2023.
Investing Activities During the year ended December 31, 2023, cash used in investing activities was $0.6 million consisting of purchases of property and equipment. During the year ended December 31, 2022, cash used in investing activities was $1.9 million consisting of a $1.0 million payment made for our intangible asset and purchases of property and equipment.
During the year ended December 31, 2023, cash used in investing activities was $0.6 million consisting of purchases of property and equipment. During the year ended December 31, 2022, cash used in investing activities was $1.9 million consisting of a $1.0 million payment made for our intangible asset and purchases of property and equipment.
Overview We are a commercial-stage medical technology company focused on providing innovative soft-tissue reconstruction solutions that optimize clinical outcomes by prioritizing the preservation and restoration of the patient’s own anatomy. Our growing product portfolio is purposefully designed to leverage the patient’s natural healing response while minimizing long-term exposure to permanent synthetic materials.
We are a commercial-stage medical technology company focused on providing innovative soft-tissue reconstruction solutions that optimize clinical outcomes by prioritizing the preservation and restoration of the patient’s own anatomy. Our growing product portfolio is purposefully designed to leverage the patient’s natural healing response while minimizing long-term exposure to permanent synthetic materials.
Ovine rumen, the forestomach of a sheep, is the source of the biologic material used in our OviTex and OviTex PRS products. We use biologic material from ovine rumen because of its plentiful supply, optimal biomechanical profile and open collagen architecture that allows for rapid cellular infiltration.
Ovine rumen, the forestomach of a sheep, is the source of the biologic material used in both of our OviTex and OviTex PRS products. We use biologic material from ovine rumen because of its plentiful supply, optimal biomechanical profile and open collagen architecture that allows for rapid cellular infiltration.
During the year ended December 31, 2022, we used $40.7 million of cash in operating activities, resulting from our net loss of $44.3 million and the change in operating assets and liabilities of $5.3 million, offset by non-cash charges of $8.9 million.
During the year ended December 31, 2022, we used $40.7 million of cash in operating activities, resulting from our net loss of $44.3 million and the change in operating assets and liabilities of $5.3 million, offset by non-cash items of $8.9 million.
(2) Interest payable reflects the rate in effect as of December 31, 2023. The interest rate on borrowings under the MidCap Credit Facility is variable and resets monthly. End of term fee reflects final payment fee due at maturity.
(2) Interest payable reflects the rate in effect as of December 31, 2024. The interest rate on borrowings under the MidCap Credit Facility is variable and resets monthly. End of term fee reflects final payment fee due at maturity.
Our intellectual property applies to our differentiated product construction and materials. In addition, we believe our exclusive manufacturing and long-term supply and license agreement (the “Aroa License”) with Aroa creates a competitive advantage by allowing us to secure an exclusive supply of ovine rumen at a low cost.
Our intellectual property applies to our differentiated product construction and materials. In addition, we believe 84 Table of Contents our exclusive manufacturing and long-term supply and license agreement with Aroa (the “Aroa License”) creates a competitive advantage by allowing us to secure an exclusive supply of ovine rumen at a low cost.
Food and Drug Administration (“FDA”), which clearances were obtained and are currently held by our exclusive contract manufacturer of these products, Aroa. In April 2019, our first OviTex PRS products received 510(k) clearance from the FDA, which clearance was initially obtained by Aroa and is currently held by us.
Our OviTex products have received 510(k) clearances from the U.S. Food and Drug Administration, (“FDA”) which clearances were obtained and are currently held by our exclusive contract manufacturer of these products, Aroa. In April 2019, our first OviTex PRS products received 510(k) clearance from the FDA, which clearance was initially obtained by Aroa and is currently held by us.
Our non-cash charges were comprised of stock-based compensation expense of $4.0 million, our excess and obsolete inventory charge of $1.9 million, loss on extinguishment of debt of $1.2 million, depreciation and amortization expense of $1.2 million and interest expense of $0.7 million.
Our non-cash items were comprised of stock-based compensation expense of $4.0 million, our excess and obsolete inventory charge of $1.9 million, loss on extinguishment of debt of $1.2 million, depreciation and amortization expense of $1.2 million and noncash interest expense of $0.7 million.
In addition, we also continue to explore the development of lower-cost, higher-margin resorbable polymer-based devices targeting our current indications. We are also exploring additional technologies that may complement our existing products, or expand the number of our product lines, in each case within the hernia, plastic and reconstruction, and broader soft-tissue reconstruction and preservation markets.
In addition, we also continue to explore the development of lower-cost, higher-margin resorbable polymer-based devices targeting our current indications. We are also exploring additional technologies that may complement our existing products, or expand the number of our products, in each case within the hernia, plastic and reconstruction, and broader soft-tissue reconstruction market.
The continuing uncertainty surrounding macroeconomic conditions and financial markets, including the financial strain suffered by hospital customers during the COVID-19 pandemic, may adversely affect demand for our products and procedures and result in lower reimbursement rates or coverage for our products, resulting in lower sales volume and downward pricing pressure on our products and slower adoption of new products.
The continuing uncertainty surrounding macroeconomic conditions and financial markets, including the financial strain suffered by hospital customers first arising in response to the COVID-19 pandemic, may adversely affect demand for our products and procedures and result in lower reimbursement rates or coverage for our products, resulting in lower sales volume and downward pricing pressure on our products and slower adoption of new products.
Our non-cash charges were comprised of stock-based compensation expense of $5.0 million, our excess and obsolete inventory charge of $1.4 million, depreciation and amortization expense of $0.8 million and interest expense of $0.6 million.
Our non-cash items were comprised of stock-based compensation expense of $5.0 million, our excess and obsolete inventory charge of $1.4 million, depreciation and amortization expense of $0.8 million and noncash interest expense of $0.6 million.
Of the enrolled patients, 78% were characterized as high risk for experiencing an SSO based on at least one known risk factor, which included obesity, active smoking, COPD, diabetes mellitus, coronary artery disease, or advanced age (≥75 years).
Of the enrolled patients, 78% were characterized as high risk for experiencing an SSO based on at least one known risk factor, which included obesity, active smoking, chronic obstructive pulmonary disease (“COPD”), diabetes mellitus, coronary artery disease, or advanced age (≥75 years).
Components of Our Results of Operations Revenue Substantially all our revenue consists of direct sales of our products to hospital accounts in the U.S.
Components of Our Results of Operations Revenue The majority of our revenue consists of direct sales of our products to hospital accounts in the U.S.
Additionally, we have contracted with three national group purchasing organizations (“GPOs”) covering our OviTex and OviTex PRS products and plan to continue to contract with additional GPOs and other integrated delivery networks (“IDNs”) to increase access to and penetration of hospital accounts.
Additionally, we have contracted with three national group purchasing organizations (“GPOs”) in the United States covering our OviTex and OviTex PRS products and plan to continue to contract with additional GPOs and other integrated delivery networks (“IDNs”) to increase access to and penetration of hospital accounts for all products we commercialize.
As of December 31, 2023, we had $40.0 million of borrowings outstanding under our Credit and Security Agreement (the “MidCap Credit Agreement”) with MidCap Financial Trust, as agent and certain lender parties thereto.
As of December 31, 2024, we had $40.0 million of borrowings outstanding under our Credit and Security Agreement (the “MidCap Credit Agreement”) with MidCap Financial Trust, as agent and certain lender parties thereto. The MidCap Credit Agreement matures in May 2027.
We are currently devoting research and development resources to develop additional variations of our OviTex and OviTex PRS product lines, including the additional IHR configurations to further enhance product compatibility in robotic procedures, larger versions of our current product configurations, the development of configurations with longer-acting resorbable polymers and other potential product and packaging enhancements to extend the shelf life of our products.
We are currently devoting research and development resources to develop additional variations of our OviTex and OviTex PRS products, including larger versions of our current OviTex PRS product configurations, the development of OviTex configurations with longer-acting resorbable polymers and other potential product and packaging enhancements to extend the shelf life of our products.
We have invested in our direct sales and marketing infrastructure to expand our presence and to promote awareness and adoption of our products. As of December 31, 2023, we had 91 sales territories in the U.S.
We have invested in our direct sales and marketing infrastructure to expand our presence and to promote awareness and adoption of our products. As of December 31, 2024, we had 75 sales territories in the U.S. and 13 sales territories in Europe.
Our first portfolio of products, the OviTex Reinforced Tissue Matrix (“OviTex”), which we first commercialized in the U.S. in July 2016 and in Europe in February 2019, addresses unmet needs in hernia repair and abdominal wall reconstruction by combining the benefits of biologic matrices and polymer materials while minimizing their shortcomings, at a cost-effective price. Hernia repair is one of the most common surgeries performed in the U.S., representing approximately 1.1 million procedures annually.
Our first portfolio of products, the OviTex Reinforced Tissue Matrix ( “OviTex”) which we first commercialized in the U.S. in July 2016 and in Europe in February 2019, addresses unmet needs in hernia repair and abdominal wall reconstruction by combining the benefits of biologic matrices and polymer materials while minimizing their shortcomings, at a cost-effective price.
Our gross margin has been, and we expect it will continue to be, affected by a variety of factors, including sales volume, royalties and inventory excess and obsolescence costs.
Our gross margin has been, and we expect it will continue to be, affected by a variety of factors, including sales volume, royalties and inventory excess and obsolescence costs. Our gross profit may increase to the extent our revenue grows.
If we are not in covenant compliance at the end of the Interest-Only Period, we are required to make 24 months of straight-line amortization payments, with the entire principal amount due at maturity. Subject to certain limitations, the MidCap Term Loans have a prepayment fee equal to 3.0% of the prepaid principal amount for the first year following the closing date of the MidCap Term Loans, 2.0% of the prepaid principal amount for the second year following the closing date and 1.0% of the prepaid principal amount for the third year following the closing date and thereafter.
If we are not in covenant compliance at the end of the Interest-Only Period, we are required to make 24 months of straight-line amortization payments, with the entire principal amount due at maturity. Subject to certain limitations, the MidCap Term Loans have a prepayment fee equal to 1.0% of the prepaid principal.
These expenses include salaries and related benefits including stock-based compensation, for employees focused on these efforts, consulting services, costs associated with our preclinical studies, costs incurred with our manufacturing partner under development agreements related to technology transfer, costs incurred from license agreements with no alternative future uses, laboratory materials and supplies and an allocation of related facilities costs.
These expenses include salaries and related benefits including stock-based compensation, for employees focused on these efforts, consulting services, costs associated with our preclinical studies and clinical studies undertaken to obtain regulatory clearance for new or expanded product indications, costs incurred 87 Table of Contents with our manufacturing partner under development agreements related to technology transfer, costs incurred from license agreements with no alternative future uses, laboratory materials and supplies and an allocation of related facilities costs.
We continue to assess additional strategic partnerships with medical device companies whereby we may enter into distribution, product development and/or licensing agreements for new products complimentary to, or related to, existing and future products in our distribution channel. We have a broad portfolio of intellectual property protecting our products that we believe, when combined with the proprietary manufacturing processes associated with our products and our know-how, provides significant barriers to entry.
We may assess additional strategic partnerships with medical device companies whereby we may enter into distribution, product development and/or licensing agreements for additional products complimentary to, or related to, existing and future products in our distribution channel, which could result in the payment by us of single digit percentage royalties or other product acquisition costs We have a broad portfolio of intellectual property protecting our products that we believe, when combined with the proprietary manufacturing processes associated with our products and our know-how, provides significant barriers to entry.
In March 2024, we sold our distribution rights to MiMedx Group, Inc. in exchange for an initial $5.0 million payment and additional future payments aggregating between a minimum of $3.0 million and a maximum of $7.0 million based on net sales of NIVIS over the next two years.
In March 2024, we sold our distribution rights to MiMedx Group, Inc. in exchange for an initial $5.0 million payment and additional future payments aggregating between a minimum of $3.0 million and a maximum of $7.0 million based on net sales of NIVIS (now marketed as HELIOGEN) during the first two years following its launch by MiMedx Group, Inc.
We previously co-developed and commercialized our NIVIS Fibrillar Collagen Pack (“NIVIS”), an absorbent matrix of Type I and Type III bovine collagen designed to manage moderately to heavily exudating wounds and to control minor bleeding, in partnership with Regenity Biosciences.
In March 2024, we announced the full commercial launch of LiquiFix in the U.S. We previously co-developed and commercialized the NIVIS Fibrillar Collagen Pack, (“NIVIS”) an absorbent matrix of Type I and Type III bovine collagen designed to manage moderately to heavily exudating wounds and to control minor bleeding, in partnership with Regenity Biosciences.
In addition to the BRAVO study and other current clinical initiatives, we also commenced enrollment in May 2021 for our BRAVO II study, a prospective study evaluating the use of OviTex in robot-assisted ventral and inguinal hernia repairs. 81 Table of Contents Our second portfolio of products, the OviTex PRS Reinforced Tissue Matrix (“OviTex PRS”), which we first commercialized in the U.S. in May 2019, addresses unmet needs in plastic and reconstructive surgery.
Among these other initiatives, we continue to enroll patients for our BRAVO II study, a prospective study evaluating the use of OviTex in robot-assisted ventral and inguinal hernia repairs. Our second portfolio of products, the OviTex PRS Reinforced Tissue Matrix, (“OviTex PRS”) which we first commercialized in the U.S. in May 2019, addresses unmet needs in plastic and reconstructive surgery.
Our gross profit may increase to the extent our revenue grows. 84 Table of Contents Sales and Marketing Expenses Sales and marketing expenses consist of commercial activities related to the sale of our products, along with the salaries and related benefits, including sales commissions and stock-based compensation for employees focused on these efforts.
Sales and Marketing Expenses Sales and marketing expenses consist of commercial activities related to the sale of our products, along with the salaries and related benefits, including sales commissions and stock-based compensation for employees focused on these efforts.
Cost of Revenue Cost of revenue (excluding amortization of intangible assets) increased by $4.4 million, or 32%, to $18.0 million for the year ended December 31, 2023 from $13.6 million for the year ended December 31, 2022.
Cost of Revenue Cost of revenue (excluding amortization of intangible assets) increased by $4.5 million, or 25%, to $22.4 million for the year ended December 31, 2024 from $18.0 million for the year ended December 31, 2023.
We believe that genuine collaboration with surgeons and healthcare providers results in the development of new solutions that empower patient care.
We believe that genuine collaboration with surgeons and healthcare providers results in the development of new solutions that empower patient care and addresses unmet needs within the soft tissue reconstruction market.
We received net proceeds of approximately $46.3 million after deducting underwriting discounts, commissions and other offering expenses. In March 2024, we sold our distribution rights to MiMedx Group, Inc. in exchange for an initial $5.0 million payment and additional future payments aggregating between a minimum of $3.0 million and a maximum of $7.0 million based on net sales of NIVIS over the next two years. We have incurred operating losses since our inception, and we anticipate that our operating losses will continue in the near term as we seek to invest in our sales and marketing initiatives to support our growth in existing and new markets and in additional research and development activities.
The exercise of the pre-funded warrants, if any, is not expected to provide significant additional funding to the Company. In March 2024, we sold our distribution rights to MiMedx Group, Inc. in exchange for an initial $5.0 million payment and additional future payments aggregating between a minimum of $3.0 million and a maximum of $7.0 million based on net sales of NIVIS (now marketed as HELIOGEN) over the subsequent two years. We have incurred operating losses since our inception, and we anticipate that our operating losses will continue in the near term as we seek to invest in our sales and marketing initiatives to support our growth in existing and new markets and in additional research and development activities.
We are also required to pay an exit fee at the time of maturity or prepayment event equal to 5% of all principal borrowings (or in the event of a prepayment event, the amount of principal being prepaid). 90 Table of Contents Contractual Obligations and Commitments The following table summarizes our contractual obligations as of December 31, 2023 and the effects that such obligations are expected to have on our liquidity and cash flows in future periods: Payments due by Period Less than (in thousands) Total 1 year 1 to 3 years 3 to 5 years Thereafter Principal payments on long-term debt (1) $ 40,000 $ — $ — $ 40,000 $ — Interest and end of term charge on long-term debt (2) 17,581 4,677 9,354 3,550 — Operating lease commitments (3) 3,736 601 1,137 1,153 845 Purchase commitments 7,080 2,250 4,830 — — Total $ 68,397 $ 7,528 $ 15,321 $ 44,703 $ 845 (1) Assumes extension of Interest-Only Period to 48 months under the MidCap Credit Facilty.
We are also required to pay an exit fee at the time of maturity or prepayment event equal to 5% of all principal borrowings (or in the event of a prepayment event, the amount of principal being prepaid). Contractual Obligations and Commitments The following table summarizes our contractual obligations as of December 31, 2024 and the effects that such obligations are expected to have on our liquidity and cash flows in future periods: Payments due by Period Less than (in thousands) Total 1 year 1 to 3 years 3 to 5 years Thereafter Principal payments on long-term debt (1) $ 40,000 $ — $ 40,000 $ — $ — Interest and end of term charge on long-term debt (2) 12,188 4,361 7,827 — — Operating lease commitments (3) 3,135 580 1,127 1,178 250 Total $ 55,323 $ 4,941 $ 48,954 $ 1,178 $ 250 (1) Assumes extension of Interest-Only Period to 48 months under the MidCap Credit Facility.
Financing Activities During the year ended December 31, 2023, cash provided by financing activities was $46.3 million, consisting primarily of $46.3 million in proceeds received from the sale of our common stock and $0.1 million of proceeds received from the exercise of stock options partially offset by the payment of withholding taxes related to stock-based compensation to employees. 89 Table of Contents During the year ended December 31, 2022, cash provided by financing activities was $40.9 million, consisting primarily of $34.4 million in proceeds from an underwritten public offering, $40.0 million in proceeds received from the issuance of long-term debt, partially offset by $30.0 million in repayments of long-term debt and $3.5 million in payments of issuance costs.
During the year ended December 31, 2022, cash provided by financing activities was $40.9 million, consisting primarily of $34.4 million in proceeds from an underwritten public offering, $40.0 million in proceeds received from the issuance of long-term debt, partially offset by $30.0 million in repayments of long-term debt and $3.5 million in payments of issuance costs.
The vast majority of our revenue to date has been generated from sales of our OviTex and OviTex PRS products in the U.S., with the remainder generated from sales of our OviTex products in Europe and the sale of other products.
As of December 31, 2024, we had an accumulated deficit of $358.7 million. The vast majority of our revenue to date has been generated from sales of our OviTex and OviTex PRS products in the U.S., with the remainder generated from sales of our OviTex products in Europe and the sale of other products.
During the year ended December 31, 2023, we sold 13,675 units of OviTex compared to 10,083 units of OviTex during the year ended December 31, 2022, a 36% increase in unit sales volume. Additionally, we sold 3,544 units of OviTex PRS compared to 2,385 units during the year ended December 31, 2022, a 49% increase in unit sales volume.
During the year ended December 31, 2024, we sold 18,121 units of OviTex compared to 13,675 units of OviTex during the year ended December 31, 2023, a 33% increase in unit sales volume. Additionally, we sold 4,645 units of OviTex PRS compared to 3,544 units during the year ended December 31, 2023, a 31% increase in unit sales volume.
Our non-cash charges were comprised of stock-based compensation expense of $3.7 million, our excess and obsolete inventory charge of $1.4 million, interest expense of $0.7 million and depreciation and amortization expense of $0.5 million.
Our non-cash items were comprised of the gain on sale of NIVIS of $7.6 million offset by stock-based compensation expense of $4.4 million, our excess and obsolete inventory charge of $3.0 million, depreciation and amortization expense of $1.0 million and noncash interest expense of $0.6 million.
The change in our operating assets and liabilities was primarily related to an increase in our inventory, accounts receivable and prepaid expenses and other assets, partially offset by increases in accounts payable and accrued expenses and other current and long-term liabilities.
The change in our operating assets 91 Table of Contents and liabilities was primarily related to increases in accounts receivable and inventory, partially offset by increases in accrued expenses.
The increase in cost of revenue was primarily the result of an increase in products purchased to support demand from our higher unit sales, partially offset by a lower charge for excess and obsolete inventory.
The increase in cost of revenue was primarily the result of an increase in products purchased to support demand from our higher unit sales and a higher charge for excess and obsolete inventory. Amortization of Intangible Assets Amortization of intangible assets was $0.4 million for both the years ended December 31, 2024 and 2023.
If we are unable to obtain adequate financing, we may be required to delay or reduce the current development, commercialization and marketing plans for our products. 88 Table of Contents Cash Flows The following table summarizes our sources and uses of cash for each of the periods presented: Year Ended December 31, (in thousands) 2023 2022 2021 Cash used in operating activities $ (40,857) $ (40,748) $ (30,432) Cash used in investing activities (599) (1,872) (627) Cash provided by financing activities 46,267 40,852 585 Effect of exchange rate changes on cash and cash equivalents 164 (144) 11 Net increase (decrease) in cash and cash equivalents and restricted cash $ 4,975 $ (1,912) $ (30,463) Operating Activities During the year ended December 31, 2023, we used $40.9 million of cash in operating activities, resulting from our net loss of $46.7 million and the change in operating assets and liabilities of $2.0 million, offset by non-cash charges of $7.8 million.
Cash Flows The following table summarizes our sources and uses of cash for each of the periods presented: Year Ended December 31, (in thousands) 2024 2023 2022 Cash used in operating activities $ (41,595) $ (40,857) $ (40,748) Cash provided by (used in) investing activities 4,451 (599) (1,872) Cash provided by financing activities 43,057 46,267 40,852 Effect of exchange rate changes on cash and cash equivalents 28 164 (144) Net increase (decrease) in cash and cash equivalents and restricted cash $ 5,941 $ 4,975 $ (1,912) Operating Activities During the year ended December 31, 2024, we used $41.6 million of cash in operating activities, resulting from our net loss of $37.8 million and the change in operating assets and liabilities of $4.9 million, offset by non-cash items of $1.1 million.
During the year ended December 31, 2021, we used $30.4 million of cash in operating activities, resulting from our net loss of $33.3 million and the change in operating assets and liabilities of $3.5 million, offset by non-cash charges of $6.3 million.
During the year ended December 31, 2023, we used $40.9 million of cash in operating activities, resulting from our net loss of $46.7 million and the change in operating assets and liabilities of $2.0 million, offset by non-cash items of $7.8 million.
Research and Development Research and development expenses increased by $0.7 million, or 8%, to $9.6 million for the year ended December 31, 2023 from $8.9 million for the year ended December 31, 2022. The increase was primarily due to higher compensation costs due to an increase in headcount, offset by lower study costs.
Research and Development Research and development expenses decreased by $0.8 million, or 8%, to $8.8 million for the year ended December 31, 2024 from $9.6 million for the year ended December 31, 2023. The decrease was primarily due to reduced clinical and preclinical study costs, including associated consulting expense, partially offset by higher compensation costs.
Other significant sales and marketing expenses include costs incurred with post-market clinical studies, conferences and trade shows, promotional and marketing activities, market research, as well as travel and training expenses.
Other significant sales and marketing expenses include costs incurred with post-market clinical studies, conferences and trade shows, promotional and marketing activities, market research, as well as travel and training expenses. We expect future sales and marketing expenses will primarily depend on our ability to drive operational leverage and efficiencies from our commercial organization.
As a result, we have experienced high volatility in our stock price over the prior year.
Due to this uncertainty and other factors, we have experienced high volatility in our stock price over the prior year.
Recent revenue growth has been driven by increasing revenue from product sales due to our expanding customer base, although macroeconomic pressures described in this Annual Report may impair our ability to continue to generate revenue and expand our customer base at historic rates.
Recent revenue growth has been driven by increasing revenue from product sales due to our expanding customer base and deeper penetration across procedures in existing customer accounts, although macroeconomic pressures described in this Annual Report may impair our ability to continue to generate revenue, expand our customer base, and increase utilization of our products in existing customer accounts at historic rates. 86 Table of Contents Cost of Revenue Cost of revenue primarily consists of the costs of licensed products, charges related to excess and obsolete inventory adjustments, royalties and costs related to shipping.
If we raise additional funds by issuing equity or equity-linked securities, our stockholders would experience dilution and any new equity securities could have rights, preferences and privileges superior to those of holders of our common stock. Debt financing, if available, may involve covenants restricting our operations or our ability to incur additional debt.
No sales were made under the 2023 Equity Agreement or during the year ended December 31, 2024. If we raise additional funds by issuing equity or equity-linked securities, our stockholders would experience dilution and any new equity securities could have rights, preferences and privileges superior to those of holders of our common stock.
Additionally, the true economic effects of COVID-19 pandemic may have created other labor and financial strains on healthcare systems that continue to reduce procedural volumes. 83 Table of Contents General Economic Uncertainty : Continued concerns about the systemic impact of a potential economic downturn or recession, increasing interest rates, further economic downturn or banking instability and geopolitical issues, including the ongoing Russia-Ukraine conflict and the current conflict in Israel and Gaza (including any escalation or expansion), have contributed to increased market volatility and diminished expectations for economic growth in the world.
These factors have and may continue to impact us in the following ways: 85 Table of Contents General Economic Uncertainty : Continued concerns about the systemic impact of a potential economic downturn or recession, increasing interest rates, further economic downturn or banking instability, monetary policy including the imposition of tariffs, changes and geopolitical issues, including the ongoing Russia-Ukraine conflict, the current conflict in the Middle East (including any escalation or expansion) and increasing tensions between China and Taiwan, have contributed to increased market volatility and diminished expectations for economic growth in the world.
During the year ended December 31, 2021, cash used in investing activities was $0.6 million consisting of purchases of property and equipment.
Investing Activities During the year ended December 31, 2024, cash provided by investing activities was $4.5 million, consisting of proceeds received from the sale of NIVIS of $5.4 million, partially offset by $1.0 million in purchases of property and equipment.
In addition, we have also designed an OviTex product specifically for use in laparoscopic and robotic-assisted hernia repair, which we market as OviTex LPR and began commercializing this product in November 2018. In February 2023, we launched two new, larger configurations of OviTex LPR, designed for ventral and incisional hernias.
Our OviTex portfolio consists of multiple product configurations intended to address various surgical procedures within hernia repair and abdominal wall reconstruction, including ventral, inguinal, and hiatal hernia repair. In addition, we have also designed an OviTex product specifically for use in laparoscopic and robotic-assisted hernia repair, which we market as OviTex LPR and began commercializing in November 2018.
The BRAVO study was designed to evaluate the clinical performance of OviTex for primary or recurrent ventral hernias using open, laparoscopic, or robotic techniques in 92 enrolled patients. The recurrence rate at the 24-month time point was 2.6%, and surgical site occurrences (“SSOs”) were observed in 38% of the study population.
The recurrence rate at the 24-month time point was 2.6%, and surgical site occurrences (“SSOs”), were observed in 38% of the study population.
As of December 31, 2023, no additional borrowings were made and our ability to draw from Tranche 2 has since expired. Based on our current business plan, we believe that our existing cash resources will be sufficient to meet our capital requirements and fund our operations for at least the next 12 months from the issuance of this Annual Report.
Upon closing, we used a portion of the proceeds to repay borrowings under a previous credit facility and intend to use the remaining proceeds to fund operations and other general corporate purposes. Based on our current business plan, we believe that our existing cash resources will be sufficient to meet our capital requirements and fund our operations for at least the next 12 months from the issuance of this Annual Report.
We purchase product from Aroa at a fixed transfer cost as a percentage of Aroa’s cost of goods, which, with the exception of our recent IHR-dedicated products, equals 27% of our net sales of licensed products.
We purchase product from Aroa at a fixed transfer cost as a percentage of Aroa’s cost of goods, which, subject to a true-up adjustment, results in an amount equal to 27% of our net sales of our OviTex and OviTex PRS products, with the exception of OviTex IHR product configurations, for which we pay the greater of the initial fixed transfer cost or 27% of our net sales of OviTex IHR.
In August 2023, we announced the launch of our OviTex PRS Long-Term Resorbable product configuration, which was designed to enhance the OviTex PRS portfolio with specific design features including bi-directional stretch and a fully resorbable, long-term polymer for reinforcement. Our OviTex PRS portfolio is supported by non-human primate data that demonstrated more rapid tissue integration and tissue remodeling compared to the market leading biologic matrix used in this indication.
OviTex PRS Long-Term Resorbable, our most recent product configuration, launched in August 2023, and was designed to enhance the OviTex PRS portfolio with specific design features including bi-directional stretch and a fully resorbable, long-term polymer for reinforcement .
Based on the volume weighted average selling price of our OviTex products, we estimate the annual U.S. total addressable market opportunity for our OviTex products to be approximately $1.5 billion. Our OviTex portfolio consists of multiple product configurations intended to address various surgical procedures within hernia repair and abdominal wall reconstruction, including ventral, inguinal, and hiatal hernia repair.
Hernia repair is one of the most common surgeries performed in the U.S., representing approximately 1.2 million procedures annually. Based on the volume weighted average selling price of our OviTex products, we estimate the annual U.S. total addressable market opportunity for our OviTex products to be approximately $1.8 billion.
In September 2023, we entered into a distribution agreement with Advanced Medical Solutions Limited, a company registered in England, to be their exclusive distributor of their LiquiFix Hernia Mesh Fixation Devices (LiquiFix FIX8™ and LiquiFix Precision™). In March 2024, we announced the full commercial launch of LiquiFix in the U.S.
Some additional product offerings include or have included atraumatic mesh fixation devices or surgical wound management and infection control solutions. In September 2023, we entered into a distribution agreement with Advanced Medical Solutions Limited, a company registered in England, to distribute their LiquiFix Hernia Mesh Fixation Devices (LIQUIFIX FIX8™ and LIQUIFIX Precision™).
Other Income (Expense) Other income (expense) increased by $2.6 million primarily due to higher interest income on increased cash balances and foreign currency translation adjustments. 87 Table of Contents Liquidity and Capital Resources Overview As of December 31, 2023, we had cash and cash equivalents of $46.7 million, working capital of $54.8 million and an accumulated deficit of $320.9 million.
Liquidity and Capital Resources Overview As of December 31, 2024, we had cash and cash equivalents of $52.7 million, working capital of $62.5 million and an accumulated deficit of $358.9 million. As of December 31, 2023, we had cash and cash equivalents of $46.7 million, working capital of $54.8 million and an accumulated deficit of $320.9 million.
Upon closing, we borrowed $40.0 million of Tranche 1 and used a portion of the proceeds to fully repay borrowings under the OrbiMed Credit Facility and intend to use the remaining proceeds to fund operations and other general corporate purposes.
Upon closing, we used a portion of the proceeds to fully repay borrowings under the OrbiMed Credit Facility and intend to use the remaining proceeds to fund operations and other general corporate purposes. 92 Table of Contents Pursuant to the MidCap Credit Agreement, we provided a first priority security interest in all existing and future acquired assets, including intellectual property, owned by us.
General and Administrative General and administrative expenses increased by $1.0 million, or 7%, to $14.9 million for the year ended December 31, 2023 from $13.9 million for the year ended December 31, 2022.
General and Administrative General and administrative expenses decreased by $0.2 million, or 1%, to $14.7 million for the year ended December 31, 2024 from $14.9 million for the year ended December 31, 2023. The decrease was primarily due to decreases in professional fees, bad debt and insurance expense, partially offset by higher compensation costs.
In March 2023, we received an additional 510(k) clearance for our OviTex PRS Long-Term Resorbable device, which is currently held by us. We have also engaged in discussions with the FDA regarding an Investigational Device Exemption (“IDE”) protocol to study the safety and effectiveness of our OviTex PRS product for an indication in breast reconstruction surgery.
In March 2023, we received an additional 510(k) clearance for our OviTex PRS Long-Term Resorbable device, which is currently held by us. In May 2024, we received clearance of a Special 510(k) related to minor changes to our OviTex PRS Permanent and Short-Term Resorbable devices.
Based on the current sales of biologic matrices in the U.S., we estimate the annual U.S. current addressable market opportunity for our OviTex PRS products to be approximately $700 million. Our OviTex products have received 510(k) clearances from the U.S.
We also continue to enroll patients in our OPERA study, a retrospective-prospective trial evaluating the safety profile of OviTex PRS in previous pre-pectoral and sub-pectoral implant-based breast reconstructions. Based on the current sales of biologic matrices in the U.S., we estimate the annual U.S. current addressable market opportunity for our OviTex PRS products to be approximately $800 million.
Business Update Regarding Macroeconomic Conditions Our business, results of operations and commercial operations have been impacted by macroeconomic conditions, including the COVID-19 pandemic, as well as, to a lesser extent, inflationary pressures, fluctuations in foreign currency in the jurisdictions in which we operate, banking instability and geopolitical conflicts.
Business Update Regarding Macroeconomic Conditions Our business, results of operations and commercial operations have been, and may continue to be impacted by macroeconomic conditions outside of our control, including general economic uncertainty, external cybersecurity events impacting our customers, disruptions in supply of critical surgical supplies for procedures utilizing our products, inflationary pressures, tariffs, regulatory changes in the market in which we operate, fluctuations in foreign currency in the jurisdictions in which we operate, banking instability, monetary policy changes and geopolitical conflicts.
To date, there have been over thirty published or presented works relating to these clinical findings, either by us or a third-party evaluating the OviTex product. In October 2022, the 24-month results of our single arm, multicenter post-market clinical study, which we refer to as our BRAVO study, were published in the Annals of Medicine and Surgery .
We have also focused on evaluating and publishing clinical data on the effectiveness and safety of our OviTex products. To date, there have been over forty published or presented works relating to these clinical findings, either by us or a third-party evaluating one or more product configurations in our OviTex portfolio.
Research and Development Expenses Research and development expenses consist primarily of product research, engineering, product development, regulatory compliance and clinical development.
We expect our general and administrative expenses to decrease as a percentage of revenue primarily as, and to the extent, our revenue grows. Research and Development Expenses Research and development expenses consist primarily of product research, engineering, product development, regulatory compliance and clinical development.
Our revenue for the years ended December 31, 2023 and 2022 was $58.5 million and $41.4 million, respectively, which represents an increase of $17.0 million, or 41% for the year ended December 31, 2023.
We intend to continue to make investments in research and development efforts to develop improvements and enhancements to our product portfolio. Our revenue for the years ended December 31, 2024 and 2023 was $69.3 million and $58.5 million, respectively, which represents an increase of $10.8 million, or 19% for the year ended December 31, 2024.
Gross Margin Gross margin increased to 69% for the year ended December 31, 2023 from 65% for the year ended December 31, 2022. The increase was primarily due to lower expense recognized for excess and obsolete inventory adjustments as a 86 Table of Contents percentage of revenue which resulted from improved inventory management processes and lower amortization of intangible assets.
The decrease was primarily due to higher expense recognized for excess and obsolete inventory adjustments as a percentage of revenue which resulted from the introduction of newer generation products. 89 Table of Contents Sales and Marketing Sales and marketing expenses increased by $5.0 million, or 8%, to $64.6 million for the year ended December 31, 2024 from $59.7 million for the year ended December 31, 2023.
Interest Expense Interest expense increased by $1.2 million, or 29%, to $5.2 million for the year ended December 31, 2023 from $4.1 million for the year ended December 31, 2022 due to the increased levels of borrowings under our Credit and Security Agreement (the “MidCap Credit Agreement”) with MidCap Financial Trust, as agent and certain lender parties thereto, and an increase to the variable component of our interest rate.
Interest Expense Interest expense increased by $0.1 million, or 1%, to $5.3 million for the year ended December 31, 2024 from $5.2 million for the year ended December 31, 2023 due to increases in the variable component of our interest rate.
Our OviTex products are manufactured by Aroa at their FDA registered and ISO 13485 compliant facility in Auckland, New Zealand. We purchase product from Aroa at a fixed transfer cost as a percentage of Aroa’s cost of goods sold, and, with the exception of our recent IHR-dedicated products equals 27% of our net sales of licensed products.
We purchase product from Aroa at a fixed transfer cost as a percentage of Aroa’s cost of goods sold, and subject to a true-up adjustment, resulting in an amount equal to 27% of our net sales of our OviTex and OviTex PRS products, with the exception of OviTex IHR product configurations, for which we pay the greater of the initial fixed transfer cost or 27% of our net sales of OviTex IHR.
General and Administrative Expenses General and administrative expenses consist primarily of salaries and related benefits, including stock-based compensation for personnel in executive, finance, information technology and administrative functions. General and administrative expenses also include professional service fees for legal, accounting, consulting, investor and public relations, insurance costs and direct and allocated facility-related costs.
General and administrative expenses also include professional service fees for legal, accounting, consulting, investor and public relations, insurance costs and direct and allocated facility-related costs. We expect future general and administrative expenses will primarily depend on our ability to efficiently execute on our growth initiatives.
The increase in revenue was primarily driven by an increase in unit sales of our products due to the ongoing expansion of our commercial organization, which resulted in the addition of new customers, increased penetration within existing customer accounts and growing international sales.
The increase in revenue was primarily driven by an increase in unit sales of our products due to the addition of new customers and growing international sales. This growth was partially offset by a decrease in average selling prices caused by product mix as the share of smaller-sized units increased.
During the year ended December 31, 2021, cash provided by financing activities was $0.6 million, consisting primarily of the proceeds received from the exercise of stock options. Indebtedness On May 26, 2022, we entered into the MidCap Credit Agreement with MidCap Financial Trust, as agent and certain lender parties thereto.
Indebtedness On May 26, 2022, we entered into the MidCap Credit Agreement with MidCap Financial Trust, as agent and certain lender parties thereto. The MidCap Credit Agreement provides for up to $40.0 million in MidCap Term Loans.
This revenue sharing arrangement allows us to competitively price our products and pass along cost-savings to our customers. 82 Table of Contents We market our products through a single direct sales force, predominantly in the U.S., as augmented by a smaller number of sales representatives and distributors in certain European countries.
We primarily market our products through a single direct sales force, predominantly in the U.S., with a small number of sales representatives in the United Kingdom and European Union, and also utilize a smaller number of independent contractors and distributors in the United States and certain European countries.
We expense research and development costs as they are incurred. We expect research and development expenses in absolute dollars to increase in the future as we develop new products and enhance existing products. We expect research and development expenses as a percentage of revenue to vary over time depending on the level and timing of new product development initiatives.
We expense research and development costs as they are incurred. We expect future research and development expenses will primarily depend on our ability to efficiently develop new products, enhance existing products and conduct research to generate clinical data in support of new or expanded indications for our products.
Our net loss for the same time periods was $46.7 million and $44.3 million, respectively, which represents an increase of $2.4 million, or 5% for the year ended December 31, 2023. As of December 31, 2023, we had an accumulated deficit of $320.9 million.
Our net loss for the same time periods was $37.8 million and $46.7 million, respectively, which represents a decrease of $8.8 million, or 19% for the year ended December 31, 2024 inclusive of the gain recognized of $7.6 million on the sale of NIVIS to the MiMedx Group, Inc.
The increase was primarily due to higher compensation costs as a result of the expansion of our commercial organization, increased travel, consulting and marketing expenses and additional employee-related costs due to an increase in headcount.
The increase was primarily due to higher compensation costs, primarily from commissions on an increased revenue base and severance costs, increased travel and consulting expense, and additional selling-related expenses related to product sampling and meeting expenses, which were partially offset by decreased marketing expenses.
Over time we expect our sales and marketing expenses to increase in absolute dollars as we continue to expand our commercial organization to both drive and support our planned growth in revenue. We expect our sales and marketing expenses to continue to decrease as a percentage of revenue, as and to the extent, our revenue grows.
We expect our sales and marketing expenses to continue to decrease as a percentage of revenue, as and to the extent, our revenue grows. General and Administrative Expenses General and administrative expenses consist primarily of salaries and related benefits, including stock-based compensation for personnel in executive, finance, information technology and administrative functions.
In April 2023, we completed an underwritten public offering in which we issued and sold 5,219,190 shares of our common stock (including 469,190 shares sold pursuant to the underwriters’ overallotment option in May 2023) at a public offering price of $9.50 per share.
On October 24, 2024, we completed an underwritten public offering of 14,670,000 shares of our common stock, including the exercise in full of the underwriters’ overallotment option to purchase additional shares of common stock, at a price to the public of $2.25 per share and, in lieu of common stock to investors who so chose, pre-funded warrants to purchase 5,800,000 shares of common stock at a public offering price of $2.2499 per pre-funded warrant, which 90 Table of Contents represents the per share public offering price for the shares of common stock less the $0.0001 per share exercise price for each pre-funded warrant.
Amortization of Intangible Assets Amortization of intangible assets decreased by $0.4 million, or 53%, to $0.4 million for the year ended December 31, 2023 from $0.8 million for the year ended December 31, 2022.
Gross Margin Gross margin decreased to 67% for the year ended December 31, 2024 from 69% for the year ended December 31, 2023.