Biggest changeCertain raw materials utilized in NexoBrid’s manufacture, including the supply of the active ingredient bromelain are obtained from Taiwan. 61 Table of Contents Results of Operations The following is a summary of our consolidated results of operations: Year Ended December 31, 2023 vs. 2022 (In thousands) 2023 2022 2021 Change $ Change % Total revenue $ 197,516 $ 164,365 $ 156,184 $ 33,151 20.2 % Cost of product sales 61,940 54,577 50,159 7,363 13.5 % Gross profit 135,576 109,788 106,025 25,788 23.5 % Research and development 21,042 19,943 16,287 1,099 5.5 % Selling, general and administrative 120,998 106,903 97,592 14,095 13.2 % Total operating expenses 142,040 126,846 113,879 15,194 12.0 % Loss from operations (6,464) (17,058) (7,854) 10,594 (62.1) % Total other income 4,096 1,070 272 3,026 282.8 % Income tax expense (benefit) 814 721 (111) 93 12.9 % Net loss $ (3,182) $ (16,709) $ (7,471) $ 13,527 (81.0) % Comparison of the Periods Ended December 31, 2023 and 2022 Total Revenue Revenue by product is as follows: Year Ended December 31, 2023 vs. 2022 (In thousands) 2023 2022 2021 Change $ Change % MACI $ 164,800 $ 131,967 $ 111,554 $ 32,833 24.9 % Epicel 31,574 31,731 41,521 (157) (0.5) % NexoBrid 1,142 667 3,109 475 71.2 % Total revenue $ 197,516 $ 164,365 $ 156,184 $ 33,151 20.2 % Total revenue increase for the year ended December 31, 2023, compared to 2022, was driven primarily by MACI volume and price growth and the launch of NexoBrid after its commercial availability during the third quarter of 2023.
Biggest changeResults of Operations The following is a summary of our consolidated results of operations: 62 Table of Contents Year Ended December 31, 2024 vs. 2023 (In thousands) 2024 2023 2022 Change $ Change % Total revenue $ 237,224 $ 197,516 $ 164,365 $ 39,708 20.1 % Cost of product sales 65,117 61,940 54,577 3,177 5.1 % Gross profit 172,107 135,576 109,788 36,531 26.9 % Research and development 24,797 21,042 19,943 3,755 17.8 % Selling, general and administrative 142,791 120,998 106,903 21,793 18.0 % Total operating expenses 167,588 142,040 126,846 25,548 18.0 % Income (loss) from operations 4,519 (6,464) (17,058) 10,983 169.9 % Total other income 5,991 4,096 1,070 1,895 46.3 % Income tax expense 148 814 721 (666) (81.8) % Net income (loss) $ 10,362 $ (3,182) $ (16,709) $ 13,544 425.6 % Comparison of the Periods Ended December 31, 2024 and 2023 Total Revenue Revenue by product is as follows: Year Ended December 31, 2024 vs. 2023 (In thousands) 2024 2023 2022 Change $ Change % MACI $ 197,309 $ 164,800 $ 131,967 $ 32,509 19.7 % Epicel 36,623 31,574 31,731 5,049 16.0 % NexoBrid 3,292 1,142 667 2,150 188.3 % Total revenue $ 237,224 $ 197,516 $ 164,365 $ 39,708 20.1 % Total revenue increase for the year ended December 31, 2024, compared to 2023, was driven primarily by MACI volume and price growth, in addition to higher Epicel and NexoBrid volume.
Net Cash Used in Investing Activities Net cash used in investing activities during the year ended December 31, 2023 was the result of $55.2 million in investment purchases, a $7.5 million regulatory milestone payment to MediWound resulting from the FDA’s approval of the NexoBrid BLA, and $20.0 million of property and equipment purchases primarily for construction in process related to the Burlington Lease partially offset by $79.6 million of investment sales and maturities.
Net cash used in investing activities during the year ended December 31, 2023 was the result of $55.2 million in investments purchases, a $7.5 million regulatory milestone payment to MediWound resulting from the FDA’s approval of the NexoBrid BLA, and $20.0 million of property and equipment purchases primarily for construction in process related to the Burlington Lease, partially offset by $79.6 million of investment sales and maturities.
Food and Drug Administration (“FDA”) approved autologous cell therapy products and one FDA-approved specialty biologic product in the U.S. MACI ® is an autologous cellularized scaffold product indicated for the repair of symptomatic, single or multiple full-thickness cartilage defects of the knee with or without bone involvement in adults.
Food and Drug Administration (“FDA”) approved autologous cell therapy products and one FDA-approved specialty biologic product in the U.S. MACI ® is an autologous cellularized scaffold product that is indicated for the repair of symptomatic, single or multiple full-thickness cartilage defects of the knee with or without bone involvement in adults.
Epicel ® is a permanent skin replacement Humanitarian Use Device (“HUD”) for the treatment of adult and pediatric patients with deep-dermal or full-thickness burns comprising greater than or equal to 30 percent of total body surface area (“TBSA”). We also hold an exclusive license from MediWound Ltd.
Epicel ® is a permanent skin replacement Humanitarian Use Device (“HUD”) indicated for the treatment of adult and pediatric patients with deep-dermal or full-thickness burns comprising greater than or equal to 30 percent of a patient’s total body surface area (“TBSA”). We also hold an exclusive license from MediWound Ltd.
We have no immediate plans to borrow under the Revolving Credit Agreement, but we may use the facility for working capital needs and other general corporate purposes. As of December 31, 2023 , there are no outstanding borrowings under the Revolving Credit Agreement, and we are in compliance with all applicable covenant requirements.
We have no immediate plans to borrow under the Revolving Credit Agreement, but we may use the facility for working capital needs and other general corporate purposes. As of December 31, 2024 , there are no outstanding borrowings under the Revolving Credit Agreement, and we are in compliance with all applicable covenant requirements.
Certain raw materials utilized in NexoBrid’s manufacture, including the supply of the active ingredient bromelain, are obtained from Taiwan. Product Portfolio Our marketed products include two FDA-approved autologous cell therapies and one FDA-approved specialty biologic product.
Certain raw materials utilized in NexoBrid’s manufacture, including the supply of the active ingredient bromelain, are sourced from Taiwan. Product Portfolio Our marketed products include two FDA-approved autologous cell therapies and one FDA-approved specialty biologic product.
Pursuant to the terms of the Construction Escrow Agreement, in April 2023 we began funding into an escrow account maintained by the escrow agent a portion of our share of tenant improvement construction costs at the facility, which will be designated as restricted cash.
Pursuant to the terms of the Construction Escrow Agreement, in April 2023 we began funding into an escrow account maintained by the escrow agent a portion of our share of tenant improvement construction costs at the facility, which is designated as restricted cash.
See Note 8, “Revolving Credit Agreement” in the accompanying consolidated financial statements for further details. Contractual Obligations We lease facilities in Ann Arbor, Michigan, Cambridge, Massachusetts and Burlington, Massachusetts. The Cambridge facilities include clean rooms, laboratories for MACI and Epicel manufacturing and office space. We also pay for use of two offsite warehouse spaces and lease computer equipment.
See Note 8, “Revolving Credit Agreement” in the accompanying consolidated financial statements for further details. Contractual Obligations We lease facilities in Ann Arbor, Michigan, Cambridge, Massachusetts and Burlington, Massachusetts. The Cambridge facility includes clean rooms, laboratories for MACI and Epicel manufacturing and office space. We also pay for use of two offsite warehouse spaces and lease equipment.
The expansion of our target addressable market supports a broader commercial footprint, and we believe that this may help drive both increased NexoBrid use as well as increased Epicel awareness throughout the burn care space. The commercial launch of NexoBrid is well underway.
The expansion of our target addressable market supports a broader commercial footprint, and we believe that this may help drive both increased NexoBrid use as well as increased Epicel awareness throughout the burn care space.
Comparison of the Periods Ended December 31, 2022 and 2021 For a comparison of our results of operations for the fiscal years ended December 31, 2022 and December 31, 2021, see “Part II, Item 7.
Comparison of the Periods Ended December 31, 2023 and 2022 For a comparison of our results of operations for the fiscal years ended December 31, 2023 and December 31, 2022, see “Part II, Item 7.
Additionally, and in order to support the expansion of our autologous cell manufacturing operations at the new facility in Burlington, we plan to invest in the acquisition and installation of certain specialized manufacturing and laboratory equipment.
Additionally, and in order to support the expansion of our autologous cell manufacturing operations at the new facility in Burlington, we have and continue to invest in the acquisition and installation of certain specialized manufacturing and laboratory equipment.
Management’s Discussion and Analysis of Financial Condition and Results of Operations” of our Annual Report on Form 10-K for the fiscal year ended December 31, 2022, filed with the SEC on February 23, 2023.
Management’s Discussion and Analysis of Financial Condition and Results of Operations” of our annual report on Form 10-K for the fiscal year ended December 31, 2023, filed with the SEC on February 29, 2024.
The leases are initially measured using the present value of the projected payments adjusted for the index or rate in effect at the commencement date. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants.
Certain of our lease agreements include lease payments that are adjusted periodically for an index or rate. The leases are initially measured using the present value of the projected payments adjusted for the index or rate in effect at the commencement date. Our lease agreements do not contain any material residual value guarantees or material restrictive covenants.
We estimate expected collections for these transactions using the portfolio approach. We record a reduction to revenue at the time of sale for the estimate of the amount of consideration that will not be collected. In addition, potential credit risk exposure has been evaluated for our accounts receivable in accordance with ASC 326 , Financial Instruments - Credit Losses .
We record a reduction to revenue at the time of sale for the estimate of the amount of consideration that will not be collected. In addition, potential credit risk exposure has been evaluated for our accounts receivable in accordance with ASC 326 , Financial Instruments - Credit Losses .
Our total purchase commitments consist of minimum purchase amounts of raw materials and finished goods used in our cell manufacturing process to manufacture our marketed cell therapy products and total $19.3 million as of December 31, 2023, as well as usage of offsite warehouse space.
Our total purchase commitments consist of minimum purchase amounts of raw materials and finished goods used in our cell manufacturing process to manufacture our marketed cell therapy products and total $15.4 million as of December 31, 2024, as well as usage of offsite warehouse space.
Net Cash Provided by Operating Activities Our cash, cash equivalents, and restricted cash totaled $86.9 million, short-term investments totaled $40.5 million and long-term investments totaled $25.3 million as of December 31, 2023.
Our cash, cash equivalents and restricted cash totaled $86.9 million, short-term investments totaled $40.5 million and long-term investments totaled $25.3 million as of December 31, 2023.
The arthroscopic delivery of MACI could increase the ease of MACI’s use for physicians and reduce both the length of the procedure as well as procedure-induced trauma, ultimately resulting in a reduction of a patient’s post-operative pain and accelerating a patient’s recovery.
The arthroscopic delivery of MACI could increase the ease of MACI’s use for physicians and may reduce both the length of the procedure as well as procedure-induced trauma, which may result in a reduction of a patient’s post-operative pain and accelerate a patient’s recovery.
Net cash provided by financing activities during the year ended December 31, 2021 was the result of net proceeds from the exercise of stock options and the employee stock purchase plan of $3.7 million, partially offset by the payment of employee withholding taxes related to the vesting of restricted stock units of $1.5 million and payments of debt issuance costs of $1.1 million.
Net Cash Provided by Financing Activities Net cash provided by financing activities during the year ended December 31, 2024 was the result of net proceeds from the exercise of stock options and the employee stock purchase plan of $24.5 million, partially offset by the payment of employee withholding taxes related to the vesting of restricted stock units of $5.5 million.
The team is divided into geographic regions, each managed by a Regional Manager and led by a Vice President of National MACI Sales. Most private payers have a medical policy that covers treatment with MACI with the top 30 largest commercial payers having a formal medical policy for MACI or ACI in general.
The team is divided into geographic regions and is managed by a senior sales leadership team. Most private payers have a medical policy that covers treatment with MACI with the top 30 largest commercial payers having a formal medical policy for MACI or ACI in general.
Total remaining obligations related to operating leases are $157.1 million, with $20.7 million of tenant improvement allowances allowed for, as of December 31, 2023. 65 Table of Contents In April 2023, in connection with the Burlington Lease, we entered into a construction escrow agreement (the “Construction Escrow Agreement”) with the facility’s landlord and an escrow agent.
Total remaining obligations related to operating and finance leases are $146.0 million, with $4.4 million of tenant improvement allowances allowed for, as of December 31, 2024. In April 2023, in connection with the Burlington Lease, we entered into a construction escrow agreement (the “Construction Escrow Agreement”) with the facility’s landlord and an escrow agent.
As of December 31, 2023, we have sold no shares pursuant to the Sales Agreement. On July 29, 2022, we entered into a $150.0 million five-year senior secured revolving credit agreement by and among the Company, the other loan parties thereto, the lenders party thereto, and JPMorgan Chase Bank, N.A., as the administrative agent (the “Revolving Credit Agreement”).
Sources of Capital On July 29, 2022, we entered into a $150.0 million five-year senior secured revolving credit agreement by and among the Company, the other loan parties thereto, the lenders party thereto, and JPMorgan Chase Bank, N.A., as the administrative agent (the “Revolving Credit Agreement”).
Epicel was designated as a HUD in 1998 and an HDE application for the product was submitted in 1999. HUDs are devices that are intended for diseases or conditions that affect fewer than 8,000 individuals annually in the U.S., and certain HUDs are restricted by the amount which a manufacturer may charge for its use.
HUDs are devices that are intended for diseases or conditions that affect fewer than 8,000 individuals annually in the U.S., and certain HUDs are restricted by the amount which a manufacturer may charge for its use.
The $17.7 million of net cash provided by operations in 2022, was primarily the result of non-cash charges of $37.2 million related to stock compensation expense, $4.2 million in operating lease amortization and $4.0 million in depreciation and amortization expense, offset by a net loss of $16.7 million and a net decrease of $11.2 million related to movements in our working capital accounts.
The $58.2 million of net cash provided by operations in 2024, was primarily the result of net income of $10.4 million, non-cash charges of $36.5 million related to stock compensation expense, $6.7 million in operating lease amortization and $5.5 million in depreciation and amortization expense, partially offset by a net decrease of $0.7 million related to movements in our working capital accounts.
We assess risk and determine a loss percentage by pooling accounts receivable based on similar risk characteristics. The loss percentage is calculated through the use of forecasts that are based on current and historical economic and financial information.
We assess risk and determine a loss percentage by pooling accounts receivable based on similar risk characteristics. The loss percentage is calculated through the use of forecasts that are based on current and historical economic and financial information. Changes in estimates of the Transaction Price are recorded through revenue in the period in which such change occurs.
We continue to maintain a full valuation allowance on all of our net deferred tax assets. Beginning in 2022, the Tax Cuts and Jobs Act of 2017 eliminated the option to deduct research and development expenditures immediately in the year incurred and requires taxpayers to amortize such expenditures over five years for tax purposes.
This is primarily due to the elimination of the option to deduct research and development expenditures immediately in the year incurred and instead amortize such expenditures over five years for tax purposes. We continue to maintain a full valuation allowance on all of our net deferred tax assets.
Both autologous cell therapy products are currently manufactured and marketed in the U.S. NexoBrid is a topically-administered biological orphan product containing proteolytic enzymes that is indicated for eschar removal in adults with deep partial-thickness and/or full-thickness burns. We hold exclusive license and supply agreements with MediWound to commercialize NexoBrid in North America.
NexoBrid is a topically-administered biological orphan product containing proteolytic enzymes that is indicated for eschar removal in adult and pediatric patients with deep partial-thickness and/or full-thickness burns. We hold exclusive license and supply agreements with MediWound to commercialize NexoBrid in North America.
In the last five years through 2023, MACI sales volumes from the first through the fourth quarter on average represented 20% (18%-22% range), 22% (16%-24% range), 23% (21%-26% range) and 35% (33%-38% range) respectively, of total annual volumes.
Seasonality. Sales of MACI implants have historically experienced a level of seasonality throughout the year. In the last five years through 2024, MACI sales volumes from the first through the fourth quarter on average represented 21% (20%-22% range), 22% (16%-24% range), 23% (21%-26% range) and 34% (33%-38% range) respectively, of total annual volumes.
The Company continues to monitor the ongoing conflict in Israel and is in close communication with MediWound leadership. MediWound’s NexoBrid manufacturing operations are continuing and, as of the date of this disclosure, MediWound does not anticipate a disruption to its ongoing supply of commercial NexoBrid to the United States.
MediWound’s NexoBrid manufacturing operations are continuing and, as of the date of this disclosure, MediWound does not anticipate a material disruption to its ongoing supply of commercial NexoBrid to the United States.
(“MediWound”) for North American rights to NexoBrid ® (anacaulase-bcdb), a topically-administered biological orphan product containing proteolytic enzymes, which is indicated for the removal of eschar in adults with deep partial thickness and/or full thickness thermal burns. Following FDA approval, we began commercial sales of NexoBrid in the U.S. during the third quarter of 2023.
(“MediWound”) for North American rights to NexoBrid ® (anacaulase-bcdb), a topically-administered biological orphan product containing proteolytic enzymes, which is indicated for the removal of eschar in adult and pediatric patients with deep partial-thickness and/or full-thickness thermal burns.
Stock-based Compensation Expense Non-cash stock-based compensation expense is summarized in the following table: Year Ended December 31, 2023 vs. 2022 (In thousands) 2023 2022 2021 Change $ Change % Cost of product sales $ 2,970 $ 3,630 $ 3,681 $ (660) (18.2) % Research and development 3,705 5,261 4,120 (1,556) (29.6) % Selling, general and administrative 25,650 28,292 26,521 (2,642) (9.3) % Total non-cash stock-based compensation expense $ 32,325 $ 37,183 $ 34,322 $ (4,858) (13.1) % 63 Table of Contents The decrease in stock-based compensation expense for the year ended December 31, 2023, is due primarily to fluctuations in stock prices and the mix of service-based options and restricted stock units, which impacts the fair value of the options and restricted stock units awarded and the expense recognized in the period.
Stock-based Compensation Expense Non-cash stock-based compensation expense is summarized in the following table: Year Ended December 31, 2024 vs. 2023 (In thousands) 2024 2023 2022 Change $ Change % Cost of product sales $ 3,911 $ 2,970 $ 3,630 $ 941 31.7 % Research and development 4,068 3,705 5,261 363 9.8 % Selling, general and administrative 28,516 25,650 28,292 2,866 11.2 % Total non-cash stock-based compensation expense $ 36,495 $ 32,325 $ 37,183 $ 4,170 12.9 % The increase in stock-based compensation expense for the year ended December 31, 2024, is due primarily to fluctuations in stock prices and the mix of service-based options and restricted stock units, which impacts the fair value of the options and restricted stock units awarded and the expense recognized in the period.
In May 2019, we entered into exclusive license and supply agreements with MediWound to commercialize NexoBrid in North America. The manufacturing process for NexoBrid is conducted by MediWound, primarily at manufacturing locations in Israel.
In May 2019, we entered into exclusive license and supply agreements with MediWound to commercialize NexoBrid in North America. The manufacturing process for NexoBrid is conducted by MediWound, primarily at manufacturing locations in Israel. Certain raw materials utilized in NexoBrid’s manufacture, including the supply of the active ingredient bromelain, are sourced from Taiwan.
To the extent the war between Israel and Hamas intensifies or expands to include additional countries or militant groups in the region and MediWound’s facilities in Israel are damaged or destroyed, travel to and from Israel is halted or inhibited, or significant key 59 Table of Contents MediWound operational personnel are called to military service, MediWound’s ability to continue to supply NexoBrid to the U.S. market could be disrupted.
To the extent the conflicts in the Middle East region intensify or expand and MediWound’s facilities in Israel are damaged or destroyed, travel to and from Israel is halted or inhibited, or significant key MediWound operational personnel are called to military service, MediWound’s ability to continue to supply NexoBrid to the U.S. market could be disrupted.
We believe that this potential lifecycle enhancement and indication expansion for MACI will require conducting an additional randomized clinical trial concerning the product’s use in the ankle and we are on 60 Table of Contents track to initiate a MACI Ankle clinical trial beginning in 2025, and if approved, we believe MACI’s expansion into the ankle will be a significant longer-term growth driver for the product, beginning in the latter half of the decade.
We believe that this potential lifecycle enhancement and indication expansion for MACI will require conducting an additional randomized clinical trial concerning the product’s use in the ankle and we are on track to initiate a MACI Ankle clinical trial beginning in 2025.
Critical Accounting Policies and Estimates The preparation of our consolidated financial statements in accordance with U.S. generally accepted accounting principles (“GAAP”) requires management to make estimates and assumptions that could materially impact the consolidated financial statements and disclosures based on varying assumptions.
We have no off-balance sheet arrangements that have, or are reasonably likely to have, a material effect on our financial condition. 66 Table of Contents Critical Accounting Policies and Estimates The preparation of our consolidated financial statements in accordance with U.S. generally accepted accounting principles (“GAAP”) requires management to make estimates and assumptions that could materially impact the consolidated financial statements and disclosures based on varying assumptions.
Cash Flows The following table summarizes our sources and uses of cash for each of the periods presented: Year Ended December 31, 2023 2022 2021 Net cash provided by operating activities $ 35,311 $ 17,687 $ 29,040 Net cash used in investment activities (3,130) (36,206) (3,501) Net cash provided by financing activities 3,618 1,045 9,171 Net increase (decrease) in cash, cash equivalents, and restricted cash $ 35,799 $ (17,474) $ 34,710 For a discussion of our liquidity and capital resources related to our cash flow activities for the fiscal year ended December 31, 2021, see “Part II, Item 7.
Management’s Discussion and Analysis of Financial Condition and Results of Operations” of our Annual Report on Form 10-K for the fiscal year ended December 31, 2023, filed with the SEC on February 29, 2024. 64 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, 2024 2023 2022 Net cash provided by operating activities $ 58,163 $ 35,311 $ 17,687 Net cash used in investment activities (79,034) (3,130) (36,206) Net cash provided by financing activities 19,054 3,618 1,045 Net (decrease) increase in cash, cash equivalents, and restricted cash $ (1,817) $ 35,799 $ (17,474) For a discussion of our liquidity and capital resources related to our cash flow activities for the fiscal year ended December 31, 2022, see “Part II, Item 7.
At the same time, the facility’s landlord began funding a portion of its tenant improvement allowance through a separate escrow account. To date, we have transferred into our escrow account 50% of our required cost amount, or approximately $28.3 million. We anticipate funding the remaining 50% of our required cost amount in early 2024.
At the same time, the facility’s landlord began funding a portion of its tenant improvement allowance through a separate escrow account. The Company funded the remaining 50% of its required cost amount, or approximately $28.3 million, with cash on hand, pursuant to the Construction Escrow Agreement in April 2024.
NexoBrid is approved in the European Union (“EU”) and other international markets and has been designated as an orphan biologic in the U.S., EU and other international markets. NexoBrid has the potential to change the standard of care for eschar removal with respect to hospitalized burn patients and treat a significant addressable market in the U.S.
NexoBrid has the potential to change the standard of care for eschar removal with respect to hospitalized burn patients and treat a significant addressable market in the U.S.
Total Other Income The change in total other income for the year ended December 31, 2023, was due primarily to fluctuations in the rates of return on our investments in various marketable debt securities partially offset by interest expense related to our Revolving Credit Agreement.
Total Other Income The change in total other income for the year ended December 31, 2024, was due primarily to fluctuations in the rates of return on our investments in various marketable debt securities and money market funds.
All operating lease commitments with a lease term greater than 12 months are recognized as right-of-use (“ROU”) assets and liabilities, on a discounted basis on the balance sheet. Leases with an initial term of 12 months or less are not recorded on the balance sheet.
Leases We determine if an arrangement is a lease at inception, in accordance with ASC Topic 842, Leases . Operating lease commitments with a lease term greater than 12 months are recognized as right-of-use (“ROU”) assets and liabilities, on a discounted basis on the balance sheet.
The increase in selling, general and administrative expenses is primarily due to a $8.1 million increase in headcount and employee expenses, an increase of $3.3 million associated with the Burlington lease which commenced in June of 2023, and additional travel and in person events across the commercial organization, partially offset by lower stock compensation expense.
The increase in selling, general and administrative expenses is primarily due to higher headcount and an increase in employee expenses and stock compensation, the Burlington Lease which commenced in June of 2023, and additional travel, marketing programs and in person events across the commercial organization, including to support the MACI arthroscopic launch.
Gross Profit Gross profit increased for the year ended December 31, 2023, compared to the same period in 2022, driven by higher MACI volume and price growth. 62 Table of Contents Research and Development Expenses The following table summarizes research and development expenses, which include materials, professional fees and an allocation of employee-related salary and fringe benefit costs for our research and development projects: Year Ended December 31, 2023 vs. 2022 (In thousands) 2023 2022 2021 Change $ Change % MACI $ 13,813 $ 11,969 $ 9,170 $ 1,844 15.4 % Epicel 3,885 4,924 4,061 (1,039) (21.1) % NexoBrid 3,344 3,050 3,056 294 9.6 % Total research and development expenses $ 21,042 $ 19,943 $ 16,287 $ 1,099 5.5 % Research and development expenses for the year ended December 31, 2023 were $21.0 million, compared to $19.9 million for 2022.
Research and Development Expenses The following table summarizes research and development expenses, which include materials, professional fees and an allocation of employee-related salary and fringe benefit costs for our research and development projects: 63 Table of Contents Year Ended December 31, 2024 vs. 2023 (In thousands) 2024 2023 2022 Change $ Change % MACI $ 18,075 $ 13,813 $ 11,969 $ 4,262 30.9 % Epicel 4,433 3,885 4,924 548 14.1 % NexoBrid 2,289 3,344 3,050 (1,055) (31.5) % Total research and development expenses $ 24,797 $ 21,042 $ 19,943 $ 3,755 17.8 % Research and development expenses for the year ended December 31, 2024 were $24.8 million, compared to $21.0 million for 2023.
The total remaining contractual obligations related to the warehouse agreement are $3.8 million as of December 31, 2023. See Note 15, “Commitments and Contingencies” in our accompanying consolidated financial statements for further informatio n. We have no off-balance sheet arrangements that have or are reasonably likely to have a material effect on our financial condition.
The total remaining contractual obligations related to the warehouse agreement are $0.9 million as of December 31, 2024. See Note 14, “Commitments and Contingencies” in our accompanying consolidated financial statements for further informatio n.
The total consideration which we expect to collect in exchange for MACI implants (the “Transaction Price”) may be fixed or variable.
The total consideration which we expect to collect in exchange for MACI implants (the “Transaction Price”) may be fixed or variable. Direct sales to hospitals or distributors are recorded at a contracted price, and there are typically no forms of variable consideration.
MACI is a third-generation autologous cellularized scaffold product indicated for the repair of symptomatic, single or multiple full-thickness cartilage defects of the knee with or without bone involvement in adults; and Epicel is a permanent skin replacement for the treatment of adult and pediatric patients with deep-dermal or full-thickness burns comprising greater than or equal to 30 percent TBSA.
Epicel is a permanent skin replacement indicated for the treatment of adult and pediatric patients with deep-dermal or full-thickness burns comprising greater than or equal to 30 percent of a patient’s TBSA. Both autologous cell therapy products are currently manufactured and marketed in the U.S.
We primarily enter into lease agreements for manufacturing and office space, warehouses space, and other computer-related equipment. The leases have varying terms, some of which may include options to extend. Certain of our lease agreements include lease payments that are adjusted periodically for an index or rate.
Leases with an initial term of 12 months or less are not recorded on the balance sheet. We 67 Table of Contents primarily enter into lease agreements for manufacturing and office space, warehouse space, and certain equipment. The leases have varying terms, some of which may include options to extend.
Net cash used in investing activities during the year ended December 31, 2022 was the result of $69.6 million in investments purchases and $7.6 million of property and equipment purchases primarily for manufacturing upgrades, partially offset by $40.9 million of investment sales and maturities through December 31, 2022. 64 Table of Contents Net Cash Provided by Financing Activities Net cash provided by financing activities during the year ended December 31, 2023 was the result of net proceeds from the exercise of stock options and the employee stock purchase plan of $6.0 million, partially offset by the payment of employee withholding taxes related to the vesting of restricted stock units of $2.3 million.
Net cash provided by financing activities during the year ended December 31, 2023 was the result of net proceeds from the exercise of stock options and the employee stock purchase plan of $6.0 million, partially offset by the payment of employee withholding taxes related to the vesting of restricted stock units of $2.3 million. 65 Table of Contents Liquidity Since our acquisition of MACI and Epicel in 2014, our primary focus has been to invest in our existing commercial business with the goal of growing revenue.
Income Tax Expense For the years ended December 31, 2023 and December 31, 2022, we recorded $0.8 million and $0.7 million, respectively, of income tax expense as a result of state income taxes primarily due to the elimination of the option to deduct research and development expenditures immediately in the year incurred and instead amortize such expenditures over five years for tax purposes.
Income Tax Expense For the years ended December 31, 2024 and 2023, we recorded $0.1 million and $0.8 million, respectively, of income tax expense as a result of state income taxes.
The overall decreases in cash from our working capital accounts were primarily driven by an increase in accounts receivable due to an increase in sales volume, an increase in inventory due to increased production needs and payments on operating leases, offset by an increase of accounts payable and accrued expenses due to timing of payments.
The overall decrease in cash from our working capital accounts was primarily driven by an increase in inventory primarily related to supporting NexoBrid commercial availability and an increase in accounts receivable due to higher sales volume, partially offset by an increase in operating lease liabilities due to receipts of tenant improvement allowances which exceeded payments on operating leases amortization.
To date, we have financed our operations primarily through cash received through MACI, Epicel and NexoBrid sales, debt, and public and private sales of our equity securities. We generated $35.3 million in operating cash flows during 2023 and we may finance our operations through the sales of equity securities, revolver borrowings or other debt financings.
In the future, we may finance our operations through the sales of equity securities, revolver borrowings or other debt financings, in addition to cash generated from operations.
If the actual forfeiture rate is different from the estimate, we adjust the expense accordingly.
If the actual forfeiture rate is different from the estimate, we adjust the expense accordingly. We record the expense for stock options and restricted stock units using a graded-vesting attribution method.
This summary of significant accounting policies should be read in conjunction with our consolidated financial statements and related notes and this discussion of our results of operations.
We will continue to monitor our cumulative loss position and forecasts and reevaluate the need for a valuation allowance as it could be reversed in future periods. This summary of significant accounting policies should be read in conjunction with our consolidated financial statements and related notes and this discussion of our results of operations.
Our burn care field force consists of individual sales and clinical representatives that regularly engage with our target audience. The team is divided into geographic regions, each managed by a Regional Manager and led by a Vice President of National Burn Care Sales. NexoBrid Our portfolio of commercial-stage products now includes NexoBrid (anacaulase-bcdb), a topically-administered biological product containing proteolytic enzymes.
Both our Epicel and NexoBrid products are serviced by our burn care field force, which consists of individual sales and clinical representatives that regularly engage with our target audience. The team is divided into geographical regions and is managed by a senior sales leadership team.
Selling, General and Administrative Expenses Selling, general and administrative expenses for the year ended December 31, 2023 were $121.0 million, compared to $106.9 million for 2022.
The increase is primarily related to MACI arthroscopic development program costs and an increase in headcount and employee expenses. Selling, General and Administrative Expenses Selling, general and administrative expenses for the year ended December 31, 2024 were $142.8 million, compared to $121.0 million for 2023.
Our cash, cash equivalents and restricted cash totaled $51.1 million, short-term investments totaled $68.5 million and long-term investments totaled $20.0 million as of December 31, 2022.
Net Cash Provided by Operating Activities Our cash, cash equivalents, and restricted cash totaled $85.0 million, short-term investments totaled $41.7 million and long-term investments totaled $39.9 million as of December 31, 2024.
Due to our three-year cumulative loss position and history of operating losses, a full valuation allowance against our net deferred tax assets was considered necessary. We will continue to monitor our cumulative loss position and forecasts and reevaluate the need for a valuation allowance as it could be reversed in future periods.
Tax Valuation Allowance A valuation allowance is recorded if it is more likely than not that a deferred tax asset will not be realized based on the weight of available evidence, both positive and negative. Due to our three-year cumulative loss position and history of operating losses, a full valuation allowance against our net deferred tax assets was considered necessary.
Epicel Epicel is a permanent skin replacement for deep-dermal or full-thickness burns comprising greater than or equal to 30 percent TBSA. Epicel is regulated by CBER of the FDA under medical device authorities, and is the only FDA-approved cultured epidermal autograft product available for large total surface area burns.
Epicel is regulated by CBER of the FDA under medical device authorities, and is the only FDA-approved cultured epidermal autograft product available for large total surface area burns in both adult and pediatric patients. Epicel was designated as a HUD in 1998 and an HDE application for the product was submitted in 1999.
Liquidity Since our acquisition of MACI and Epicel in 2014, our primary focus has been to invest in our existing commercial business with the goal of growing revenue. We have raised significant funds in order to advance and complete our product development and product life-cycle management programs and to market and commercialize our products, including NexoBrid.
We have raised significant funds in order to advance and complete our product development and product life-cycle management programs and to market and commercialize our products, including NexoBrid. To date, we have financed our operations primarily through cash received through MACI, Epicel and NexoBrid sales, debt, and public and private sales of our equity securities.
With respect to private commercial payers that have not yet approved a medical policy for MACI, we often obtain approval on a case-by-case basis. MACI is currently implanted into the patient’s cartilage defect through an open surgical procedure.
With respect to private commercial payers that have not yet approved a medical policy for MACI, we often obtain approval on a case-by-case basis. MACI consists of autologous cultured chondrocytes, which are human-derived cells that are obtained from the patient’s own cartilage, and which are seeded onto resorbable Type I/III collagen membrane.
Changes in estimates of the Transaction Price are recorded through revenue in the period in which such change occurs and relate primarily to changes in the initial expected reimbursement or collection expectation upon completion of the billing claims process for MACI implants that occurred in a prior period.
They relate primarily to changes in the initial expected reimbursement or collection expectation upon completion of the billing claims process for MACI implants that occurred in a prior year. A 50 basis points change to the estimated uncollectible percentage could result in approximately $0.5 million decrease or increase in the revenue recognized for the year ended December 31, 2024.
Reimbursements from third-party insurers and government payers vary by patient and payer and are based on either contracted rates, publicly available rates, fee schedules or past payer precedents. Net product revenue is recognized net of estimated contractual allowances, which considers historical collection experience from both the payer and patient, denial rates and the terms of our contractual arrangements.
Net product revenue is recognized net of estimated contractual allowances, which considers historical collection experience from both the payer and patient, denial rates and the terms of our contractual arrangements. We estimate expected collections for these transactions using the portfolio approach.
The War in Israel and Gaza In May 2019, the Company entered into exclusive license and supply agreements with MediWound, under which MediWound manufactures and supplies NexoBrid to the U.S. market on a unit price basis. MediWound develops and manufactures NexoBrid, in part, at its facilities in Yavne, Israel.
See “Risk Factors “Our success depends, in part, on the commercial success of NexoBrid for the removal of eschar in adults with deep partial thickness and/or full thickness thermal burns.” The Ongoing Conflicts in the Middle East In May 2019, we entered into exclusive license and supply agreements with MediWound, under which MediWound manufactures and supplies NexoBrid to the U.S. market on a unit price basis.
Direct sales to hospitals or distributors are recorded at a contracted price, and there are typically no forms of variable consideration. 66 Table of Contents When we sell MACI through its specialty pharmacies, we are typically reimbursed by a third-party insurer or government payer, subject to a patient co-pay amount.
When we sell MACI through specialty pharmacies, we are typically reimbursed by a third-party insurer or government payer, subject to a patient co-pay amount. Reimbursements from third-party insurers and government payers vary by patient and payer and are based on either contracted rates, publicly available rates, fee schedules or past payer precedents.
We also are evaluating the feasibility and potential market opportunity involved in delivering MACI treatment to patients suffering from cartilage damage in the ankle.
In conjunction with the launch of MACI Arthro, we have expanded our target surgeon base from 5,000 to 7,000 to include orthopedic surgeons that perform high volumes of knee cartilage repair surgeries, predominantly through arthroscopic procedures. We also are evaluating the feasibility and potential market opportunity involved in delivering MACI treatment to patients suffering from cartilage damage in the ankle.
For a discussion of additional risks associated with the ongoing conflict in Israel, please see Part I, Item 1A. “Risk Factors”. Manufacturing We have a cell manufacturing facility in Cambridge, Massachusetts, which is used for U.S. manufacturing and distribution of MACI and Epicel. The manufacturing process for NexoBrid is conducted by MediWound, primarily at manufacturing locations in Israel.
As of the date of this report, we maintain an ample supply of NexoBrid at our U.S.-based third-party logistics provider. For a discussion of additional risks associated with the ongoing conflicts in the Middle East, please see Part I, Item 1A. “Risk Factors”.
We are currently focused on the arthroscopic delivery of MACI to the cartilage defect – a procedure in which a surgeon can evaluate, prepare and treat the cartilage defect under direct arthroscopic visualization using specialized instruments delivered through a number of smaller incisions or portals.
MACI Arthro provides a less invasive technique compared to the open arthrotomy approach and allows surgeons to evaluate, prepare and treat the cartilage defect, and deliver the MACI implant, under direct arthroscopic visualization and, should the surgeon so choose, to use specialized and custom-designed instruments (the “MACI Arthro instruments”) through small incisions or portals.