Biggest changeOther Expense Other expense consists primarily of miscellaneous tax expenses and foreign currency exchange gains and losses offset by income earned on our cash and cash equivalents. 84 Table of Contents Results of Operations Comparison of the Year Ended December 31, 2022 and 2021 Year Ended December 31, Change 2022 2021 Dollar Percentage Revenue $ 41,418 $ 29,463 $ 11,955 41 % Cost of revenue (excluding amortization of intangible assets) 13,570 10,346 3,224 31 Amortization of intangible assets 804 304 500 164 Gross profit 27,044 18,813 8,231 44 Gross margin 65 % 64 % Operating expenses: Sales and marketing 43,252 29,062 14,190 49 General and administrative 13,862 12,459 1,403 11 Research and development 8,937 6,743 2,194 33 Total operating expenses 66,051 48,264 17,787 37 Loss from operations (39,007) (29,451) (9,556) 32 Other expense: Interest expense (4,051) (3,597) (454) 13 Loss on extinguishment of debt (1,228) — (1,228) — Other expense (10) (228) 218 (96) Total other expense (5,289) (3,825) (1,464) 38 Net loss $ (44,296) $ (33,276) $ (11,020) 33 % Revenue Revenue increased by $12.0 million, or 41%, to $41.4 million for the year ended December 31, 2022 from $29.5 million for the year ended December 31, 2021.
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.
Depending on the terms of our agreements with our customers, we recognize revenue related to product sales either when control transfers, which generally occurs when the product is shipped to the customer, or when the product is utilized in a surgical procedure in the case of consignment agreements. Fees charged to customers for shipping are recognized as revenue.
Depending on the terms of our agreements with our customers, we recognize revenue related to product sales when control transfers, which generally occurs when the product is shipped to the customer, or when the product is utilized in a surgical procedure in the case of consignment agreements. Fees charged to customers for shipping are recognized as revenue.
In June 2022, we determined that our final milestone target under our licensing agreement with Aroa was probable of being met and recorded the payment obligation as an intangible asset, resulting in an additional cumulative amortization charge of $0.5 million.
In June 2022, we determined that our final milestone target under our licensing agreement with Aroa was probable of being met and recorded the payment obligation as an intangible asset, resulting in an additional amortization charge of $0.5 million.
To date, there have been thirty published or presented works relating to these clinical findings, either by us or a third-party evaluating the OviTex product. Recently 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 .
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 .
Loss on Extinguishment of Debt We recorded a loss on the extinguishment of debt of $1.2 million during the year ended December 31, 2022 related to the repayment of borrowings of our credit facilities with OrbiMed in May. The losses were primarily comprised of the write-off of unamortized debt discounts and prepayment penalties at the time of extinguishment.
Loss on Extinguishment of Debt We recorded a loss on the extinguishment of debt of $1.2 million during the year ended December 31, 2022 related to the repayment of borrowings of our credit facilities with OrbiMed. The losses were primarily comprised of the write-off of unamortized debt discounts and prepayment penalties at the time of extinguishment.
Business Update Regarding Macroeconomic Conditions and COVID-19 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, and geopolitical conflicts.
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.
Our first portfolio of products, the OviTex Reinforced Tissue Matrix (“OviTex”), which we first commercialized in the U.S. in July 2016, 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. Hernia repair is one of the most common surgeries performed in the U.S., representing approximately 1.1 million procedures annually.
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. 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.
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.
Financial Strain and Inflationary Pressures : Market acceptance of our medical products in the U.S. and other countries is dependent upon the procurement practices of our customers, patient need for our products and procedures and the reimbursement of patients’ medical expenses by government healthcare programs and third-party payors.
Financial Strain : Market acceptance of our medical products in the U.S. and other countries is dependent upon the procurement practices of our customers, patient need for our products and procedures and the reimbursement of patients’ medical expenses by government healthcare programs and third-party payors.
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) clearance from the U.S.
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.
Investing Activities 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, 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, 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.
As of December 31, 2022, 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, 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.
We are also assessing strategic partnerships with medical device companies whereby we may enter into distribution, product development and/or licensing agreements for products complimentary to, or related to, existing and future products in our distribution channel, which could result in the payment of single digit royalties or other product acquisition costs.
We are also assessing strategic partnerships with medical device companies whereby we may enter into distribution, product development and/or licensing agreements for 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 are assessing 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 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.
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 88 Table of Contents use the remaining proceeds to fund operations and other general corporate purposes.
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.
Ovine rumen, the forestomach of a sheep, is the source of the biologic material used in our OviTex portfolio products. In manufacturing the product, 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 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.
The change in our operating assets and liabilities was primarily related to an increase in our inventory and prepaid expenses and other assets, partially offset by increases in accrued expenses and other current and long-term liabilities.
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.
We believe we can enhance the productivity of our sales force by improving customer segmentation and targeting, implementing and further refining our proprietary training programs, leveraging support from our medical education and clinical development functions to drive physician awareness and education on our products, and utilizing engagement analytics to support product development.
We believe we can enhance the productivity of our sales force by improving customer segmentation and targeting, implementing and further refining our proprietary training programs, leveraging support from our medical education and medical affairs functions to drive physician awareness, education and clinical understanding of our products, and utilizing engagement analytics to support further product development and enhancement opportunities.
The continuing uncertainty surrounding global economic 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 82 Table of Contents 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 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.
Food and Drug Administration (“FDA”), which clearance was obtained and is currently held by our exclusive contract manufacturer of these products, Aroa. In April 2019, our OviTex PRS products received 510(k) clearance from the FDA, which clearance was obtained by Aroa and is currently held by us.
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.
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, 2022, we had 67 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, 2023, we had 91 sales territories in the U.S.
Our non-cash charges were comprised of stock-based compensation expense of $2.1 million, our excess and obsolete inventory charge of $1.3 million, interest expense of $0.6 million and depreciation and amortization expense of $0.5 million.
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.
We intend to continue to make investments in research and development efforts to develop improvements and enhancements.
We intend to continue to make investments in research and development efforts to develop improvements and enhancements to our product portfolio.
We have also commenced a retrospective clinical study evaluating the effectiveness and safety of our OviTex PRS products. We also continue to expand our service offerings and diversify our supplier base as we continue to create a soft tissue restoration portfolio, including through the development of complimentary solutions targeting surgical wound management and infection control.
We have also commenced a retrospective clinical study evaluating the effectiveness and safety of our OviTex PRS products. We also continue to expand our service offerings and diversify our supplier base as we continue to create a soft tissue preservation and restoration portfolio, including through the development of complimentary solutions in our indications such as atraumatic mesh fixation devices or surgical wound management and infection control.
Additionally, we have contracted with three national GPOs covering our OviTex product 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”) 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.
Our revenue for the years ended December 31, 2022 and 2021 was $41.4 million and $29.5 million, respectively, which represents an increase of $12.0 million, or 41% for the year ended December 31, 2022.
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.
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.
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.
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.
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.
The increase in revenue was primarily driven by an increase in unit sales of our products due to the expansion of our commercial organization, increased penetration within existing customer accounts and stronger international sales.
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 was primarily due to higher salaries, benefits and commission costs as a result of our expanded commercial organization, higher travel and consulting expenses and additional employee-related costs due to an increase in headcount.
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.
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.
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.
In December 2020, we entered into an Equity Distribution Agreement (the “Equity Agreement”) with Piper Sandler & Co (the “Agent”) in connection with the establishment of an at-the-market offering program under which we may sell up to an aggregate of $50.0 million of shares of our common stock, from time to time through the Agent as sales agent.
In November 2023, we entered into a new Equity Distribution Agreement (the “2023 Equity Agreement”) with Piper Sandler & Co, (“Piper”) in connection with the establishment of an at-the-market offering program under which we may sell shares of our common stock, from time to time through Piper as sales agent, in an initial amount of up to $50 million.
This revenue sharing arrangement allows us to competitively price our products and pass along cost-savings to our customers. Our business was directly impacted by the COVID-19 pandemic. We experienced volatility in demand for our products which primarily resulted from government and hospital restrictions, as well as patient health and safety concerns, decreasing the volume of elective procedures using our products.
Our business was directly impacted by the COVID-19 pandemic. We experienced volatility in demand for our products which primarily resulted from government and hospital restrictions, as well as patient health and safety concerns, decreasing the volume of elective procedures using our products.
Our net loss for the same time periods was $44.3 million and $33.3 million, respectively, which represents an increase of $11.0 million, or 33% for the year ended December 31, 2022. As of December 31, 2022, we had an accumulated deficit of $274.2 million.
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.
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 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.
During the year ended December 31, 2020, we used $24.5 million of cash in operating activities, resulting from our net loss of $28.8 million and the change in operating assets and liabilities of $0.2 million offset by non-cash charges of $4.5 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 charges of $8.9 million.
General and Administrative General and administrative expenses increased by $1.4 million, or 11%, to $13.9 million for the year ended December 31, 2022 from $12.5 million for the year ended December 31, 2021.
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.
Financing Activities 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.
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.
The initial term of our Aroa License terminates on the expiration of the last patent covering bovine and ovine products, with an option to extend for an additional ten-year period.
The initial term of our Aroa License terminates on the expiration of the last patent covering bovine and ovine products, with an option to extend for an additional ten-year period. We expect our cost of revenue to increase in absolute dollars as, and to the extent, our sales volume grows.
Amortization of Intangible Assets Amortization of intangible assets increased by $0.5 million, or 164%, to $0.8 million for the year ended December 31, 2022 from $0.3 million for the year ended December 31, 2021.
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.
During the year ended December 31, 2022, we sold 10,083 units of OviTex compared to 7,516 units of OviTex during the year ended December 31, 2021, a 34% increase in unit sales volume. Additionally, we sold 2,385 units of OviTex PRS compared to 1,260 units during the year ended December 31, 2021, an 89% increase in unit sales volume.
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.
We cannot be assured that additional equity, equity-linked or debt financing will be available on terms favorable to us or our stockholders, or at all, including as a result of market volatility resulting from the COVID-19 pandemic, inflationary pressures, geopolitical conflict or other factors.
We cannot be assured that additional equity, equity-linked or debt financing will be available on terms favorable to us or our stockholders, or at all, including as a result of market volatility stemming from macroeconomic conditions, including those related to banking instability, increasing interest rates or other factors.
Cash Flows The following table summarizes our sources and uses of cash for each of the periods presented: Year Ended December 31, (in thousands) 2022 2021 2020 Cash used in operating activities $ (40,748) $ (30,432) $ (24,456) Cash (used in) provided by investing activities (1,872) (627) 9,122 Cash provided by financing activities 40,852 585 44,409 Effect of exchange rate change on cash and cash equivalents (144) 11 17 Net (decrease) increase in cash and cash equivalents $ (1,912) $ (30,463) $ 29,092 87 Table of Contents Operating Activities 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.
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.
Other Expense Other expense decreased by $0.2 million, or 96%, primarily due to foreign currency translation adjustments offset by increased interest income. 86 Table of Contents Liquidity and Capital Resources Overview As of December 31, 2022, we had cash and cash equivalents of $42.0 million, working capital of $50.0 million and an accumulated deficit of $274.2 million.
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.
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. We purchase product from Aroa at a fixed cost equal to 27% of our net sales of licensed products.
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.
These factors have and may continue to impact us in the following ways: COVID-19 : In the first quarter of 2022, regional surges of the COVID-19 Omicron variant resulted in some government restrictions on elective procedures and surgical staffing challenges leading to the deferral of elective surgeries and lower surgical procedural volumes overall.
These factors have and may continue to impact us in the following ways: COVID-19 : Our business was directly impacted by the COVID-19 pandemic, including due to government restrictions on elective procedures and surgical staffing challenges that lead to the deferral of elective surgeries and lower surgical procedural volumes overall.
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. The FDA has stated that a PMA, rather than 510(k) clearance will be required for such an indication.
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 January 2023, we announced an exclusive development and distribution partnership with Collagen Matrix, Inc. (“CMI”), pursuant to which we launched the commercialization of our NIVIS Fibrillar Collagen Pack, an absorbent matrix of Type I and Type III bovine collagen designed to manage moderately to heavily exudating wounds and to control minor bleeding.
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.
Amortization of Intangible Assets Amortization of intangible assets relates to the amortization of capitalized milestone amounts paid or probable to be paid to Aroa related to license fees or commercialization rights after future economic benefit has been established for a product.
Any delay in volume growth, whether due to macroeconomic pressures or otherwise, could lead to additional charges to excess and obsolete inventory. Amortization of Intangible Assets Amortization of intangible assets relates to the amortization of capitalized milestone amounts paid to Aroa related to license fees or commercialization rights after future economic benefit has been established for a product.
The increase was primarily due to a lower expense recognized for excess and obsolete inventory adjustments as a percentage of revenue which resulted from improved inventory management processes during the year ended December 31, 2022 as compared to the prior year partially offset by higher amortization of intangible assets. 85 Table of Contents Sales and Marketing Sales and marketing expenses increased by $14.2 million, or 49%, to $43.3 million for the year ended December 31, 2022 from $29.1 million for the year ended December 31, 2021.
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.
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 $50.0 million in MidCap Term Loans, consisting of a $40.0 million Tranche 1 and a $10.0 million Tranche 2.
The MidCap Credit Agreement provides for up to $50.0 million in MidCap Term Loans, consisting of a $40.0 million Tranche 1 and a $10.0 million Tranche 2.
We received net proceeds of $34.4 million after deducting underwriting discounts, commissions and other offering expenses. 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 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 increase was primarily due to higher salaries and benefits due to an increase in headcount, higher software related expenses and additional bad debt expense which offset lower insurance expense and recruiting fees.
The increase was primarily due to higher compensation costs and employee-related expenses due to an increase in headcount and increases in professional fees and bad debt expense, offset by a decrease in insurance expense.
No sales were made under the Equity Agreement during the years ended December 31, 2022, 2021 or 2020. 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.
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.
Our OviTex products are manufactured by Aroa at their FDA registered and ISO 13485 compliant facility in Auckland, New Zealand. We maintain our Aroa License for the exclusive supply of ovine rumen and manufacture of our reinforced tissue matrices under which we purchase product from Aroa at a fixed cost equal to 27% of our net sales of licensed products.
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 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, 2022 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 $ 40,000 $ — $ — $ 40,000 $ — Interest and end of term charge on long-term debt (1) 20,147 4,190 8,379 7,578 — Operating lease commitments (2) 2,039 358 741 775 165 Purchase commitments 21,655 2,275 3,315 4,335 11,730 Total $ 83,841 $ 6,823 $ 12,435 $ 52,688 $ 11,895 (1) Interest payable reflects the rate in effect as of December 31, 2022.
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.
Research and Development Research and development expenses increased by $2.2 million, or 33%, to $8.9 million for the year ended December 31, 2022 from $6.7 million for the year ended December 31, 2021.
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.
We purchase product from Aroa at a fixed cost equal to 27% of our net sales of licensed products. 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.
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.
Continued uncertainty and perception of worsening market conditions could result in a decline in our stock price, high inflation, increase our cost of capital and adversely affect our ability to access the capital markets in the future.
Continued uncertainty, perception of worsening market conditions and the introduction of new products which may, or may be perceived to, negatively impact the demand for our products now or in the future could result in a decline in our stock price, high inflation, an increase in our cost of capital and an adverse effect on our ability to access the capital markets in the future on terms acceptable to us or at all.
Recent revenue growth has been driven by increasing revenue from product sales due to our expanding customer base, although it is unclear at this point what long-term effect the COVID-19 pandemic and related macroeconomic pressures will have on our ability to continue to generate revenue and expand our customer base.
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.
Additionally, we are exploring new packaging technology to increase the shelf life of our OviTex and OviTex PRS products. We are also exploring additional 81 Table of Contents 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 market.
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.
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) Reflects payments due for our lease of office and laboratory space in Malvern, Pennsylvania under an operating lease agreement that expires in 2028. 89 Table of Contents
(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.
We will be eligible to borrow Tranche 2 at our option upon meeting certain conditions, including, but not limited to, reaching $65.0 million of net product revenue over the preceding four quarters by fiscal year end 2023. 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.
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.
OviTex PRS is 80 Table of Contents indicated for use in implantation to reinforce soft-tissue where weakness exists in patients requiring soft-tissue repair or reinforcement in plastic and reconstructive surgery. 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 is indicated for use in implantation to reinforce soft-tissue where weakness exists in patients requiring soft-tissue repair or reinforcement in plastic and reconstructive surgery.
Cost of Revenue Cost of revenue (excluding amortization of intangible assets) increased by $3.2 million to $13.6 million for the year ended December 31, 2022 from $10.3 million for the year ended December 31, 2021. The increase in cost of revenue was primarily the result of an increase in products purchased to support demand from our higher unit sales.
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.
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. During the year ended December 31, 2020, cash provided by financing activities was $44.4 million, consisting primarily of the net proceeds received from a follow-on public offering of our common stock.
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.
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.
Research and Development Expenses Research and development expenses consist primarily of product research, engineering, product development, regulatory compliance and clinical development.
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 that our general and administrative expenses will increase in absolute dollars as we execute our growth initiatives and expand our business and headcount to support these initiatives.
We expect that our general and administrative expenses will increase in absolute dollars as we execute our growth initiatives and expand our business and headcount to support these initiatives. We expect our general and administrative expenses to decrease as a percentage of revenue primarily as, and to the extent, our revenue grows.
We are currently devoting research and development resources to develop additional versions of our OviTex hernia product lines, including self-adhering technology to further enhance product compatibility in robotic procedures, as well as additional versions of our OviTex PRS product lines. We are also working to develop new product features and designs for both our existing OviTex and OviTex PRS products.
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.
Interest Expense Interest expense increased by $0.5 million, or 13%, to $4.1 million for the year ended December 31, 2022 from $3.6 million for the year ended December 31, 2021 as our borrowings increased under our MidCap Credit Agreement at higher interest rates.
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.
We saw improvement in our business during the second half of 2022 and anticipate that procedure volumes will continue to normalize to pre-pandemic levels; we continue to monitor the potential impact of the COVID-19 pandemic on labor and hospital staffing levels, procedural volumes and ultimately on our results.
While procedure volumes have continued to normalize to pre-pandemic levels, we continue to monitor any lingering economic effects on labor and hospital staffing levels, procedural volumes and ultimately on our results.
We recently launched two new, larger configurations of OviTex LPR, designed for ventral and incisional hernias. We have also focused on evaluating and publishing clinical data on the effectiveness and safety of our OviTex products.
More recently, we have designed a set of OviTex products specifically for use in the inguinal hernia repair (“IHR”), which we expect to launch in the second quarter of 2024. We have also focused on evaluating and publishing clinical data on the effectiveness and safety of our OviTex products.
We will be eligible to borrow Tranche 2 at our option upon meeting certain conditions, including, but not limited to, reaching $65.0 million of net product revenue over the preceding four quarters by fiscal year end 2023. 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.
As of December 31, 2023, no additional borrowings were made and our ability to draw from Tranche 2 has since expired. 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.
During the year ended December 31, 2020, cash provided by investing activities was $9.1 million consisting primarily of the proceeds from the sale and maturity of short-term investments.
During the year ended December 31, 2021, cash used in investing activities was $0.6 million consisting of purchases of property and equipment.
We expect our sales and marketing expenses to continue to decrease as a percentage of revenue, as and to the extent, our revenue grows. 83 Table of Contents 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 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.
As of December 31, 2021, we had cash and cash equivalents of $43.9 million, working capital of $48.5 million and an accumulated deficit of $229.9 million. In August 2022, we completed an underwritten public offering in which we issued and sold 4,600,000 shares of common stock at a public offering price of $8.00 per share.
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.