The following discussion and analysis of our financial condition and results of operations should be read together with our consolidated financial statements and the related notes appearing elsewhere in the Quarterly Report on Form 10-Q and our Annual Report on Form 10-K for the year ended December 31, 2020 filed with the Securities and Exchange Commission, or SEC, on March 25, 2021. This discussion contains forward-looking statements that involve risks and uncertainties. As a result of many factors, including those factors set forth in the "Risk Factors" section of our most recent Annual Report on Form 10-K, our actual results could differ materially from the results described in or implied by these forward-looking statements. For convenience of presentation some of the numbers have been rounded in the text below.

Overview

We are a clinical-stage rare disease biopharmaceutical company developing novel therapeutics for the treatment of diseases of abnormal mineralization impacting the vasculature, soft tissue and skeleton. Through our in-depth understanding of the biological pathways involved in mineralization, we are pursuing the development of therapeutics to address the underlying causes of these debilitating diseases. It is well established that two genes, ENPP1 and ABCC6, play key roles in a critical mineralization pathway and that defects in these genes lead to abnormal mineralization. We are initially focused on developing a novel therapy to treat the rare genetic diseases of ENPP1 and ABCC6 Deficiencies.

Our lead product candidate, INZ-701, is a soluble, recombinant, or genetically engineered, fusion protein that is designed to correct a defect in the mineralization pathway caused by ENPP1 and ABCC6 Deficiencies. This pathway is central to the regulation of calcium deposition throughout the body and is further associated with neointimal proliferation, or the overgrowth of smooth muscle cells inside blood vessels. We have generated robust preclinical proof of concept data demonstrating that in animal models INZ-701 prevented pathological calcification, led to improvements in overall health and survival and prevented neointimal proliferation. In addition, INZ-701 achieved survival benefit in a mouse model of ENPP1 Deficiency. We plan to advance INZ-701 into two separate Phase 1/2 clinical trials in both North America and in Europe, one in patients with ENPP1 Deficiency and another in patients with ABCC6 Deficiency. The U.S. Food and Drug Administration, or FDA, and the European Medicines Agency, or EMA, have granted orphan drug designation to INZ-701 for the treatment of ENPP1 Deficiency and ABCC6 Deficiency. The FDA has also granted fast track designation for INZ-701 for the treatment of ENPP1 Deficiency, and rare pediatric disease designation for the treatment of ENPP1 Deficiency.

In December 2020, the FDA cleared our Investigational New Drug Application, or IND, for INZ-701 for the treatment of ENPP1 Deficiency, after our submission of a final study report for the three-month toxicology studies as recommended by the FDA and resolution of a previously imposed clinical hold, and the United Kingdom Medicines and Healthcare Products Regulatory Agency authorized our Clinical Trial Application, or CTA, for a Phase 1/2 clinical trial evaluating INZ-701 in adults with ENPP1 Deficiency.

Our trial sites for our Phase 1/2 clinical trial are currently engaged in finalizing site activation procedures. Due to the COVID-19 pandemic, we were not able to initiate dosing in our Phase 1/2 clinical trial at the academic institutions we originally planned, and as a result, we engaged supplemental Phase 1 unit trial sites. These trial sites also experienced some internal delays due to the COVID-19 pandemic, and as a result we now expect to enroll the first patient in our Phase 1/2 clinical trial in the fourth quarter of 2021. We plan to report preliminary safety and biomarker data from this trial in the first half of 2022. We also expect to file additional CTAs with regulatory authorities in Canada and in the European Union before the end of 2021 to allow us to initiate clinical development of INZ-701 for the treatment of ENPP1 Deficiency outside of the United States and the United Kingdom.

In June 2021, the National Agency for the Safety of Medicines and Health Products, or ANSM, in France authorized our CTA and, in July 2021, the FDA cleared our IND for a Phase 1/2 clinical trial of INZ-701 for the treatment of ABCC6 Deficiency. Our trial sites are currently engaged in finalizing site activation procedures and we expect enrollment of the first patient in our planned Phase 1/2 clinical trial in the fourth quarter of 2021. We plan to report preliminary safety and biomarker data from this trial in the first half of 2022.

Subject to successfully completing clinical development of INZ-701 in ENPP1 and ABCC6 Deficiencies, we plan to seek marketing approvals for INZ-701 on a worldwide basis. Beyond our development focus on INZ-701, we believe that our therapeutic approach has the potential to benefit patients suffering from additional diseases of abnormal mineralization, including those without a clear genetic basis, such as calciphylaxis. We are also exploring the potential for development of a gene therapy for ENPP1 Deficiency.



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We have not yet commercialized any products or generated any revenue from product sales. Our operations to date have been limited to organizing and staffing our company, business planning, raising capital, securing intellectual property rights, conducting research and development activities, establishing arrangements for the manufacture of INZ-701 and longer term planning for potential commercialization. We have not yet initiated a clinical trial for INZ-701 or any other product candidate. To date, we have funded our operations primarily with proceeds from the sales of convertible preferred stock and sales of common stock in our initial public offering, or IPO. Through June 30, 2021, we had received net proceeds of $111.5 million from the sales of our convertible preferred stock and net proceeds of approximately $115.9 from the sale of our common stock in our IPO.

Uncertainty remains as to the potential impact of COVID-19 on our future research and development activities and the potential for a material impact on the Company increases the longer the virus impacts certain aspects of economic activity around the world. The full extent to which COVID-19 will directly or indirectly impact our business, results of operations and financial condition, including our ability to fulfill our clinical trial enrollment needs, will depend on future developments that are highly uncertain, including as a result of new information that may emerge concerning COVID-19 and the actions taken to contain it or treat COVID-19, as well as the economic impact on local, regional, national and international markets, the ultimate geographic spread of the disease, the duration of the pandemic, travel restrictions and social distancing in the United States and other countries, business closures or business disruptions, the ultimate impact on financial markets and the global economy, the effectiveness of vaccines and vaccine distribution efforts and the effectiveness of other actions taken in the United States and other countries to contain and treat the disease.

Since inception, we have incurred significant operating losses. Our ability to generate revenue from product sales sufficient to achieve profitability will depend heavily on the successful development and eventual commercialization of INZ-701 or one or more of our future product candidates and programs. Our net losses were $23.6 million for the six months ended June 30, 2021 and $56.4 million for the year ended December 31, 2020. As of June 30, 2021, we had an accumulated deficit of $114.7 million.

Our operating expenses were $23.6 million for the six months ended June 30, 2021 and $57.0 million for the year ended December 31, 2020. We expect to continue to incur significant expenses for the foreseeable future. We expect our expenses to increase substantially in connection with our ongoing activities, particularly as we advance our preclinical activities and clinical trials. In addition, if we obtain marketing approval for INZ-701 or any other product candidate we develop, we expect to incur significant commercialization expenses related to product manufacturing, sales, marketing and distribution. We have incurred and expect to continue to incur additional costs associated with operating as a public company.

As a result, we will need to obtain substantial additional funding to support our continuing operations. Until such time, if ever, as we can generate significant revenues from product sales, we expect to finance our cash needs through a combination of equity offerings, debt financings, collaborations, strategic alliances and marketing, distribution and licensing arrangements. We do not have any committed external source of funds. If we are unable to raise capital or obtain adequate funds when needed or on acceptable terms, we may be required to delay, limit, reduce or terminate our research and development programs or any future commercialization efforts or grant rights to develop and market product candidates that we would otherwise prefer to develop and market ourselves. In addition, attempting to secure additional financing may divert the time and attention of our management from day-to-day activities and distract from our research and development efforts.

Because of the numerous risks and uncertainties associated with pharmaceutical product development, we are unable to accurately predict the timing or amount of increased expenses or when, or if, we will be able to achieve profitability. Even if we do achieve profitability, we may not be able to sustain or increase profitability on a quarterly or annual basis. Our failure to become and remain profitable would depress the value of our company and could impair our ability to raise capital, expand our business, maintain our research and development efforts, diversify our pipeline of product candidates or even continue our operations.

As of June 30, 2021, we had cash, cash equivalents and short-term investments of approximately $137.5 million.

We believe that our existing cash, cash equivalents and short-term investments as of June 30, 2021 will enable us to fund our operating expenses and capital expenditure requirements into the fourth quarter of 2022. We have based this estimate on assumptions that may prove to be wrong, and our operating plan may change as a result of many factors currently unknown to us. See "-Liquidity and Capital Resources."

To finance our operations beyond that point, we will need to raise additional capital, which cannot be assured.

We anticipate that our expenses will increase substantially if and as we:



      •  prepare for, initiate and conduct a planned Phase 1/2 clinical trial of
         INZ-701 for ENPP1 Deficiency;


      •  prepare for, initiate and conduct a planned Phase 1/2 clinical trial of
         INZ-701 for ABCC6 Deficiency;


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      •  prepare for, initiate and conduct later stage clinical trials of INZ-701
         for patients with ENPP1 and ABCC6 Deficiencies;


      •  conduct research and preclinical testing of INZ-701 for additional
         indications;


  • conduct research and preclinical testing of other product candidates;


      •  advance INZ-701 for additional indications or any other product candidate
         into clinical development;


      •  seek marketing approval for INZ-701 or any other product candidate if it
         successfully completes clinical trials;


      •  scale up our manufacturing processes and capabilities to support clinical
         trials of INZ-701 or any other product candidates we develop and for
         commercialization of any product candidate for which we may obtain
         marketing approval;


      •  establish a sales, marketing and distribution infrastructure to
         commercialize any product candidate for which we may obtain marketing
         approval;


  • in-license or acquire additional technologies or product candidates;


      •  make any payments to Yale University, or Yale, under our license
         agreement or sponsored research agreement with Yale;


  • maintain, expand, enforce and protect our intellectual property portfolio;


      •  hire additional clinical, regulatory, quality control and scientific
         personnel; and


      •  add operational, financial and management information systems and
         personnel, including personnel to support our research, product
         development and planned future commercialization efforts and our
         operations as a public company.



Financial Operations Overview

Revenue

To date, we have not generated any revenue from product sales and do not expect to generate any revenue from the sale of products in the foreseeable future. If development efforts for our product candidates are successful and result in regulatory approval or we enter into collaboration or similar agreements with third parties, we may generate revenue from those product candidates.

Research and Development Expenses

Research and development expenses primarily consist of costs incurred in connection with the discovery and development of our lead product candidate, INZ-701.

We expense research and development costs as incurred. These expenses include:



      •  fees and expenses incurred in connection with the in-license of
         technology and intellectual property rights, including the write-off of
         acquired in-process research and development assets with no alternative
         future use;


      •  expenses incurred under agreements with third parties, including contract
         research organizations, or CROs, and other third parties that conduct
         research, preclinical and clinical activities on our behalf as well as
         third parties that manufacture our product candidates for use in our
         preclinical studies and planned clinical trials;


      •  manufacturing scale-up expenses and the cost of acquiring and
         manufacturing preclinical trial materials, including manufacturing
         validation batches;


      •  employee-related expenses, including salaries, related benefits, travel
         and stock-based compensation expense for employees engaged in research
         and development functions;


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      •  the costs of laboratory supplies and acquiring, developing preclinical
         studies and clinical trial materials;


  • costs related to compliance with regulatory requirements; and


      •  facilities costs, which include depreciation costs of equipment and
         allocated expenses for rent, utilities and other operating costs.

We recognize external development costs based on an evaluation of the progress to completion of specific tasks using information provided to us by our service providers.

Research and development activities are central to our business model. We are still in the early stages of development of INZ-701 and we have not yet initiated a clinical trial for INZ-701. Our trial sites are currently engaged in finalizing site activation procedures for a Phase 1/2 clinical trial in patients with ENPP1 Deficiency. We expect to enroll the first patient in the fourth quarter of 2021. In June 2021, the ANSM in France authorized our CTA and, in July 2021, the FDA cleared our IND for a Phase 1/2 clinical trial of INZ-701 for the treatment of ABCC6 Deficiency. Our trial sites are currently engaged in finalizing site activation procedures for a Phase 1/2 clinical trial in patients with ABCC6 Deficiency. We expect to enroll the first patient in the fourth quarter of 2021. Product candidates in later stages of clinical development generally have higher development costs than those in preclinical development or in earlier stages of clinical development, primarily due to the increased size and duration of later-stage clinical trials. From inception through June 30, 2021, we have incurred $71.3 million of research and development costs for INZ-701. We expect that our research and development costs will continue to increase substantially for the foreseeable future as we prepare for and initiate clinical trials of INZ-701, scale our manufacturing processes and advance development of INZ-701 for additional indications and potentially additional product candidates.

The successful development of INZ-701 and other potential future product candidates is highly uncertain. Accordingly, at this time, we cannot reasonably estimate or know the nature, timing and costs of the efforts that will be necessary to complete the development of any product candidate. We are also unable to predict when, if ever, we will generate revenue and material net cash inflows from the commercialization and sale of any of our product candidates for which we may obtain marketing approval. We may never succeed in achieving marketing approval for any of our product candidates. The success of INZ-701 and any other product candidate we develop will depend on a variety of factors, including:



  • successfully completing preclinical studies;


      •  initiating clinical trials, including our planned Phase 1/2 clinical
         trials of INZ-701 for ENPP1 Deficiency and ABCC6 Deficiency;


      •  filing and acceptance of our additional planned CTAs for INZ-701 by the
         regulatory authorities in the European Union and Canada to allow us to
         initiate Phase 1/2 clinical development of INZ-701 for ENPP1 Deficiency
         outside of the United States and the United Kingdom;


  • successfully enrolling patients in and completing clinical trials;


      •  scaling up manufacturing processes and capabilities to support clinical
         trials of INZ-701 and any other product candidates we develop;


      •  applying for and receiving marketing approvals from applicable regulatory
         authorities;


      •  obtaining and maintaining intellectual property protection and regulatory
         exclusivity for INZ-701 and any other product candidates we develop;


  • making arrangements for commercial manufacturing capabilities;


      •  establishing sales, marketing and distribution capabilities and launching
         commercial sales of INZ-701 and any other product candidates we develop,
         if and when approved, whether alone or in collaboration with others;


      •  acceptance of INZ-701 and any other product candidates we develop, if and
         when approved, by patients, the medical community and third-party payors;


  • effectively competing with other therapies;


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      •  obtaining and maintaining coverage, adequate pricing and adequate
         reimbursement from third-party payors, including government payors;


      •  maintaining, enforcing, defending and protecting our rights in our
         intellectual property portfolio;


      •  not infringing, misappropriating or otherwise violating others'
         intellectual property or proprietary rights; and


      •  maintaining a continued acceptable safety profile of our products
         following receipt of any marketing approvals.

A change in the outcome of any of these variables with respect to the development, manufacture or commercialization activities of any of our product candidates could mean a significant change in the costs, timing and viability associated with the development of that product candidate. For example, if we are required to conduct additional clinical trials or other testing beyond those that we anticipate will be required for the completion of clinical development of a product candidate, or if we experience significant delays in our clinical trials due to patient enrollment or other reasons, we would be required to expend significant additional financial resources and time on the completion of clinical development.

General and Administrative Expenses

General and administrative expenses consist primarily of salaries, related benefits, travel and stock-based compensation expense for personnel in executive, finance and administrative functions. General and administrative expenses also include professional fees for legal, consulting, accounting, tax and audit services, and information technology infrastructure costs. We anticipate that our general and administrative expenses will increase in the future as we increase our headcount to support our continued research activities and development of our product candidates. We incur and anticipate that we will continue to incur increased costs associated with being a public company, including costs of accounting, audit, legal, regulatory, compliance and tax-related services related to maintaining compliance with requirements of Nasdaq and the SEC; director and officer insurance costs; and investor and public relations costs. We anticipate the additional costs for these services will substantially increase our general and administrative expenses. Additionally, we may experience an increase in payroll and expense as a result of our preparation for potential commercial operations, especially as it relates to sales and marketing costs.

Interest Income

Interest income consists of income from bank deposits and investments.

Other Income (Expense), net

Other income (expense), net primarily consists of foreign exchange gains or losses.

Results of Operations

Comparison of the Three Months Ended June 30, 2021 and 2020

The following table summarizes our results of operations for the three months ended June 30, 2021 and 2020 (in thousands):





                               Three Months Ended
                                    June 30,
                                                           Increase
                                2021          2020        (Decrease)
Operating expenses:
Research and development     $    8,220     $  7,877     $        343
General and administrative        4,435        1,671            2,764
Total operating expenses         12,655        9,548            3,107
Loss from operations            (12,655 )     (9,548 )          3,107
Other income (expense):
Interest income                      58           71              (13 )
Other expenses                       57            4               53
Other income, net                   115           75               40
Net loss                     $  (12,540 )   $ (9,473 )   $      3,067




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Research and Development Expense

Research and development expense increased by $0.3 million to $8.2 million for the three months ended June 30, 2021 from $7.9 million for the three months ended June 30, 2020. The increase in research and development expense was primarily attributable to the following:



      •  an increase of $1.3 million due to increased salaries and other
         employee-related costs to support the growth of the business.


      •  an increase of $1.0 million as a result of increased stock-based
         compensation expense following our IPO in July 2020;


      •  an increase of $0.3 million related to other items such as rent,
         scientific advisory board fees, and amortization of leasehold
         improvements;


      •  a decrease of $1.2 million as a result of timing of the completion of
         preclinical toxicology studies in support of our IND filing for INZ-701;


      •  a decrease of $0.8 million due to decreases in manufacturing operations
         based on the timing of production runs; and


      •  a decrease of $0.3 million as a result of the delays with respect to the
         change in our clinical trials strategy.

We expect that our research and development expenses will increase for the foreseeable future as we prepare for, initiate, and conduct clinical trials of INZ-701, further scale our manufacturing processes and advance development of INZ-701 for additional indications or of additional product candidates.

General and Administrative Expense

General and administrative expense increased by $2.8 million to $4.4 million for the three months ended June 30, 2021 from $1.7 million for the three months ended June 30, 2020. The increase in general and administrative expense was primarily attributable to an increase in our employee compensation, including stock-based compensation, and benefits related to an increase in the number of general administrative employees, an increase in legal fees related to new contracts and operations as a public company, and generally higher fees in areas such as audit, tax and information technology to support our growth and support our operations as a public company. We expect that our general and administrative expenses will increase in future periods as we expand our operations and incur additional costs in connection with being a public company.

Interest Income

Interest income for the three months ended June 30, 2021 decreased by less than $0.1 million as compared to the three months ended June 30, 2020. The decrease was primarily attributable to lower interest rates on investments during the three months ended June 30, 2021 as compared to the three months ended June 30, 2020.

Other Expenses

Other expenses, consisting primarily of foreign exchange gains and losses, for the three months ended June 30, 2021 increased by less than $0.1 million as compared to the three months ended June 30, 2020. This increase was driven by cash balances we hold which are denominated in Euros and their related appreciation compared to the U.S. Dollar in the three months ended June 30, 2021 compared to the three months ended June 30, 2020.



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Comparison of the Six Months Ended June 30, 2021 and 2020

The following table summarizes our results of operations for the six months ended June 30, 2021 and 2020 (in thousands):





                                Six Months Ended
                                    June 30,
                                                           Increase
                               2021          2020         (Decrease)
Operating expenses:
Research and development     $  14,823     $  14,283     $        540
General and administrative       8,804         3,171            5,633
Total operating expenses        23,627        17,454            6,173
Loss from operations           (23,627 )     (17,454 )          6,173
Other income (expense):
Interest income                    121           242             (121 )
Other (expense) income             (84 )           1              (85 )
Other income, net                   37           243             (206 )
Net loss                     $ (23,590 )   $ (17,211 )   $      6,379

Research and Development Expense

Research and development expense increased by $0.5 million to $14.8 million for the six months ended June 30, 2021 from $14.3 million for the six months ended June 30, 2020. The increase in research and development expense was primarily attributable to the following:



      •  an increase of $2.5 million due to increased salaries and other
         employee-related costs to support the growth of the business;


      •  an increase of $1.6 million as a result of increased stock-based
         compensation expense following our IPO in July 2020;


      •  an increase of $0.8 million as a result of clinical trial preparation
         activities with our CRO;


      •  a decrease of $2.3 million due to decreases in manufacturing operations
         based on the timing of production runs; and


      •  a decrease of $2.1 million as a result of the timing of the completion of
         preclinical toxicology studies in support of our IND filing for INZ-701
         in 2020.

We expect that our research and development expenses will continue to increase for the foreseeable future as we prepare for, initiate, and conduct clinical trials of INZ-701, further scale our manufacturing processes and advance development of INZ-701 for additional indications or of additional product candidates.

General and Administrative Expense

General and administrative expense increased by $5.6 million to $8.8 million for the six months ended June 30, 2021 from $3.2 million for the six months ended June 30, 2020. The increase in general and administrative expense was primarily attributable to an increase in our employee compensation, including stock-based compensation, and benefits related to an increase in the number of general administrative employees, an increase in legal fees related to new contracts and operations as a public company, and generally higher fees in areas such as audit, tax and information technology to support our growth and support our operations as a public company. We expect that our general and administrative expenses will increase in future periods as we expand our operations and incur additional costs in connection with being a public company.

Interest Income

Interest income decreased by $0.1 million to $0.1 million for the six months ended June 30, 2021 from $0.2 million for the six months ended June 30, 2020. The decrease was primarily attributable to lower interest rates on investments during the six months ended June 30, 2021 as compared to the six months ended June 30, 2020.



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Other Expenses

Other expenses, consisting primarily of foreign exchange gains and losses for the six months ended June 30, 2021, increased by $0.1 million compared to the six months ended June 30, 2020. This increase was driven by cash balances we hold which are denominated in Euros and their related appreciation compared to the U.S. Dollar in the six months ended June 30, 2021 compared to the six months ended June 30, 2020.

Liquidity and Capital Resources

Sources of Liquidity

Since our inception, we have not generated any revenue and have incurred significant operating losses and negative cash flows from our operations. To date, we have funded our operations primarily with proceeds from the sales of convertible preferred stock and sales of common stock in our IPO. Through June 30, 2021, we had received net cash proceeds of $111.5 million from sales of our convertible preferred stock. In July 2020, we completed our IPO in which we received net proceeds, inclusive of the exercise by the underwriters of their option to purchase additional shares, of approximately $115.9 million, after deducting underwriting discounts and commissions and offering expenses. As of June 30, 2021, we had cash, cash equivalents and short-term investments of approximately $137.5 million.

Cash in excess of immediate requirements is invested primarily with a view to liquidity and capital preservation. The following table provides information regarding our total cash, cash equivalents and short-term and long-term investments at June 30, 2021 and December 31, 2020 (in thousands):





                                                          June 30,        December 31,
                                                            2021              2020
Cash and cash equivalents                               $     26,239     $       28,040
Short-term investments                                       111,225            119,657
Long-term investments                                              -             12,199
Total cash, cash equivalents, and short-term and
long-term investments                                   $    137,464     $      159,896




Cash Flows

The following table provides information regarding our cash flows for the six months ended June 30, 2021 and 2020 (in thousands):





                                                              Six Months Ended
                                                                  June 30,
                                                            2021             2020
Net cash used in operating activities                   $    (22,409 )   $    (14,898 )
Net cash provided by investing activities                     20,247            2,444
Net cash provided by financing activities                        361           31,937
Net (decrease) increase in cash, cash equivalents and
restricted cash                                         $     (1,801 )   $     19,483

Net Cash Used in Operating Activities

The cash used in operating activities resulted primarily from our net losses adjusted for non-cash charges and changes in components of working capital.

Net cash used in operating activities was $22.4 million for the six months ended June 30, 2021 compared to $14.9 million for the six months ended June 30, 2020. The increase in cash used in operating activities of $7.5 million was primarily due to an increase in net loss adjusted for non-cash items of $2.6 million as well as an increase in the use of cash for accounts payable and accrued expenses.

Net Cash Provided by Investing Activities

Net cash provided by investing activities was $20.2 million for the six months ended June 30, 2021 compared to $2.4 million net cash provided by investing activities for the six months ended June 30, 2020. For the six months ended June 30, 2021, we had maturities of marketable securities of $82.6 million, purchases of marketable securities of $62.0 million and purchases of property and equipment of $0.3 million. For the six months ended June 30, 2020 we had maturities of marketable securities of $21.5 million, purchases of marketable securities of $18.9 million and purchases of property and equipment of $0.2 million.



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Net Cash Provided by Financing Activities

Net cash provided by financing activities was $0.4 million for the six months ended June 30, 2021 compared to $31.9 million for the six months ended June 30, 2020. The decrease in net cash provided by financing activities of $31.5 million was primarily due to proceeds from the issuance of Series A-2 Convertible Preferred Stock, net of issuance costs in the six months ended June 30, 2020 and payment of IPO costs incurred in the six months ended June 30, 2020.

Funding Requirements

We expect to devote substantial financial resources to our ongoing and planned activities, particularly as we prepare for, initiate and conduct our planned Phase 1/2 clinical trials of INZ-701 for ENPP1 and ABCC6 Deficiencies, and continue research and development and initiate additional clinical trials of, and seek marketing approval for, INZ-701 and any other product candidate we develop. We expect our expenses to increase substantially in connection with our ongoing activities, particularly as we advance our preclinical activities and clinical trials. In addition, if we obtain marketing approval for INZ-701 or any other product candidates we develop, we expect to incur significant commercialization expenses related to product manufacturing, sales, marketing and distribution. Furthermore, as a result of our IPO, we have incurred and expect to incur additional costs associated with operating as a public company. Accordingly, we will need to obtain substantial additional funding in connection with our continuing operations. If we are unable to raise capital or obtain adequate funds when needed or on acceptable terms, we may be required to delay, limit, reduce or terminate our research and development programs or any future commercialization efforts or grant rights to develop and market product candidates that we would otherwise prefer to develop and market ourselves. In addition, attempting to secure additional financing may divert the time and attention of our management from day-to-day activities and distract from our research and development efforts.

Our future capital requirements will depend on many factors, including:



      •  the progress, costs and results of our planned Phase 1/2 clinical trials
         of INZ-701 for ENPP1 and ABCC6 Deficiencies and any future clinical
         development of INZ-701 for these indications;


      •  the scope, progress, costs and results of research, preclinical testing
         and clinical trials of INZ-701 for additional indications;


      •  the number of and development requirements for additional indications for
         INZ-701 or for any other product candidates we develop;


      •  our ability to scale up our manufacturing processes and capabilities to
         support clinical trials of INZ-701 and any other product candidates we
         develop;


      •  the costs, timing and outcome of regulatory review of INZ-701 and any
         other product candidates we develop;


  • potential changes in the regulatory environment and enforcement rules;


      •  our ability to establish and maintain strategic collaborations, licensing
         or other arrangements and the financial terms of such arrangements;


      •  the payment of license fees and other costs of our technology license
         arrangements;


      •  the costs and timing of future commercialization activities, including
         product manufacturing, sales, marketing and distribution, for INZ-701 and
         any other product candidates we develop for which we may receive
         marketing approval;


      •  the amount and timing of revenue, if any, received from commercial sales
         of INZ-701 and any other product candidates we develop for which we
         receive marketing approval;


  • potential changes in pharmaceutical pricing and reimbursement infrastructure;


      •  the costs and timing of preparing, filing and prosecuting patent
         applications, maintaining and enforcing our intellectual property and
         proprietary rights and defending any intellectual property-related
         claims; and


      •  the extent to which we in-license or acquire additional technologies or
         product candidates.


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As of June 30, 2021, we had cash, cash equivalents and short-term investments of approximately $137.5 million. We believe that our existing cash, cash equivalents and short-term investments as of June 30, 2021 will enable us to fund our operating expenses and capital expenditure requirements into the fourth quarter of 2022. However, we have based this estimate on assumptions that may prove to be wrong, and our operating plan may change as a result of many factors currently unknown to us. In addition, changing circumstances could cause us to consume capital significantly faster than we currently anticipate, and we may need to spend more than currently expected because of circumstances beyond our control. As a result, we could deplete our capital resources sooner than we currently expect. In addition, because the successful development of INZ-701 and any other product candidates that we pursue is highly uncertain, at this time we cannot reasonably estimate or know the nature, timing and costs of the efforts that will be necessary to complete the development of any product candidate.

Identifying potential product candidates and conducting preclinical testing and clinical trials is a time-consuming, expensive and uncertain process that takes years to complete, and we may never generate the necessary data or results required to obtain marketing approval and achieve product sales. In addition, our product candidates, if approved, may not achieve commercial success. We will not generate commercial revenues unless and until we can achieve sales of products, which we do not anticipate for a number of years, if at all. Accordingly, we will need to obtain substantial additional financing to achieve our business objectives. Adequate additional financing may not be available to us on acceptable terms, or at all, and may be impacted by the economic climate and market conditions. For example, market volatility resulting from the COVID-19 pandemic or any other future infectious diseases, epidemics or pandemics could also adversely impact our ability to access capital as and when needed.

Until such time, if ever, as we can generate substantial revenues from product sales, we expect to finance our cash needs through a combination of equity offerings, debt financings, collaborations, strategic alliances and marketing, distribution or licensing arrangements. We do not have any committed external source of funds. To the extent that we raise additional capital through the sale of equity or convertible debt securities, the ownership interests of our stockholders will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect the rights of our existing common stockholders. Debt financing and preferred equity financing, if available, may involve agreements that include covenants limiting or restricting our operations and ability to take specific actions, such as incurring additional debt, making acquisitions, engaging in acquisition, merger or collaboration transactions, selling or licensing our assets, making capital expenditures, redeeming our stock, making certain investments or declaring dividends.

If we raise additional funds through collaborations, strategic alliances or marketing, distribution or licensing arrangements with third parties, we may have to relinquish valuable rights to our technologies, future revenue streams, research programs or product candidates or grant licenses on terms that may not be favorable to us.

Off-Balance Sheet Arrangements

We did not have during the periods presented, and we do not currently have, any off-balance sheet arrangements, as defined under applicable SEC rules.

Critical Accounting Policies and Estimates

Our management's discussion and analysis of our financial condition and results of operations is based on our consolidated financial statements, which have been prepared in accordance with generally accepted accounting principles in the United States. The preparation of these consolidated financial statements requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the consolidated financial statements, as well as the reported expenses incurred during the reporting periods. Our estimates are based on our historical experience and on various other factors that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions. During the three months ended June 30, 2021, there were no material changes to our critical accounting policies from those described in our Annual Report on Form 10-K for the year ended December 31, 2020, filed with the SEC on March 25, 2021.

Recently Issued Accounting Pronouncements

A description of recently issued accounting pronouncements that may potentially impact our financial position and results of operations is disclosed in Note 3 to our consolidated financial statements appearing elsewhere in this Quarterly Report on Form 10-Q.



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Emerging Growth Company Status

The Jumpstart Our Business Startups Act of 2012 permits an "emerging growth company" such as us to take advantage of an extended transition period to comply with new or revised accounting standards applicable to public companies until those standards would otherwise apply to private companies. We have elected to use the extended transition period for complying with new or revised accounting standards and will do so until such time that we either (1) irrevocably elect to "opt out" of such extended transition period or (2) no longer qualify as an emerging growth company.

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