
You should read the following discussion and analysis of our financial condition and results of operations together with the unaudited condensed financial statements and the notes thereto included elsewhere in this Quarterly Report on Form 10-Q for the quarter endedSeptember 30, 2022 and with our audited consolidated financial statements and notes thereto contained in our Annual Report on Form 10-K for the year endedDecember 31, 2021 filed with theSecurities and Exchange Commission (SEC) onMarch 29, 2022 and other filings we have made with theSEC . As discussed under the heading "Cautionary Note Regarding Forward-Looking Statements," this discussion contains forward-looking statements that reflect our plans, estimates and beliefs and involve numerous risks and uncertainties, including but not limited to those described in Part II, Item 1A, "Risk Factors" of this Quarterly Report on Form 10-Q. Actual results may differ materially from those described in or implied by any forward-looking statements. Overview We are a clinical-stage biopharmaceutical company focused on discovering, developing and commercializing novel oral anti-viral therapeutics to improve the lives of patients suffering from life-threatening disease, starting with our lead product candidate, PBI-0451, which is in clinical development and intended to treat and prevent COVID-19 in adult and pediatric patients. COVID-19 is caused by infection with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and has emerged as the most significant pandemic threat to the world in many decades. We have built a discovery platform designed to target reactive nucleophiles, such as those in cysteine proteases. By leveraging our understanding of structure-based drug design, reversible covalent chemistry and viral biology, we have discovered and are developing novel product candidates with low nanomolar potency against SARS-CoV-2 and broad activity against all known pathogenic human coronaviruses. Our lead product candidate, PBI-0451, inhibits the main coronaviral cysteine protease (Mpro), a viral protein essential for replication of all known coronaviruses, including SARS-CoV-2. In preclinical studies, PBI-0451 has demonstrated activity against all coronaviral proteases tested to date, as well as inhibition of replication of multiple coronaviruses, including SARS-CoV-2 clinical variants of concern, including those in the Omicron-lineage. Moreover, in preclinical studies, PBI-0451 demonstrated the potential for oral bioavailability across multiple preclinical species and more recently, oral bioavailability in healthy volunteers in our Phase 1 clinical trials. We believe the anti-viral potency seen against SARS-CoV-2 in preclinical in vitro studies and demonstrated oral bioavailability in humans supports its potential to be an oral direct acting antiviral (DAA) for use against COVID-19. We plan to develop PBI-0451 for both oral treatment and prophylaxis of COVID-19 in adult and pediatric patients. Given the highly conserved nature of the Mpro target, which is shared among all known coronaviruses, including emerging variants of concern, we believe PBI-0451 will likely continue to retain its potency and activity against current and most emerging SARS-CoV-2 variants of concern. At this time, we are focusing on PBI-0451 and our next generation coronavirus Mpro inhibitor program. Our ability to generate revenue from product sales sufficient to achieve profitability will depend heavily on the successful development and eventual commercialization or partnership for one or more of our product candidates. OnDecember 23, 2021 , we completed the Business Combination with FSDC II, which resulted in FSDC II acquiring 100% of our issued and outstanding securities. Together with FSDC II's cash resources, additional funding for our operations was provided through a private investment in public equity (PIPE Investment ), which was completed concurrently with the Merger. We accounted for the Business Combination as a reverse recapitalization which is the equivalent of Old Pardes issuing stock for the net assets of FSDC II, with FSDC II treated as the acquired company for accounting purposes. The net assets of FSDC II were stated at historical cost with no goodwill or other intangible assets recorded. Reported results from operations included herein prior to the Business Combination are those of Old Pardes. The shares and corresponding capital amounts and loss per share related to Old Pardes' outstanding redeemable convertible preferred stock and common stock prior to the Business Combination have been retroactively restated to reflect the Conversion Ratio established in the Merger Agreement. For additional information please refer to Note 4, Business Combination, to the audited consolidated financial statements included in Part II, Item 8 of our Form 10-K for the fiscal year endedDecember 31, 2021 . Since inception in 2020, we have devoted substantially all our efforts and financial resources to organizing and staffing our company, business planning, raising capital, discovering product candidates, preparing and filing related patent applications and conducting research and development activities for our product candidates. We have not yet successfully completed any Phase 2 clinical trials evaluating the efficacy of any of our product candidates, including PBI-0451, nor have we obtained any regulatory approvals, manufactured a commercial-scale drug, or conducted sales and marketing activities. We do not have any products approved for sale and we have not generated any revenue from product sales. We may never be able to develop or commercialize a marketable product. 11 --------------------------------------------------------------------------------
recent developments
InJanuary 2022 , theUnited States Food and Drug Administration (FDA) cleared our Investigational New Drug (IND) application for PBI-0451. InJune 2022 , the FDA designated the investigation of PBI-0451 for treatment and prevention of SARS-CoV-2 infection and associated diseases (i.e., COVID-19) as a Fast Track development program. We have completed our first-in-human Phase 1 clinical trial (Study PBI-0451-0001, NCT 05011812) with PBI-0451 that assessed single and multiple dosing, food effect, formulation, and CYP3A4/P-glycoprotein drug drug-drug interactions. In that clinical trial, there were zero drug discontinuations and no drug-related grade 2, 3, 4 or serious adverse events (collectively, AEs) and no evidence of relationship between dose/exposure and severity, relatedness or incidence of AEs. The most common AEs considered possibly related/probably related are gastrointestinal-related (abdominal bloating, decreased appetite, diarrhea, dyspepsia, flatulence, nausea) and headache; no AEs of dysgeusia were reported. No clinically significant treatment emergent adverse findings in laboratory values, vital signs or electrocardiogram assessments were reported. PBI-0451 was well tolerated at doses up to 2100 mg/day for ten days. We believe PBI-0451 at 700 mg (two 350 mg tablets) administered twice daily with food has the potential to achieve and maintain exposures expected to demonstrate potent antiviral activity. We have also completed a food effect study for our clinical and intended commercial tablet formulation of PBI-0451. In in vitro toxicology studies, we observed a lack of mutagenic or genotoxic potential, phototoxicity or teratogenicity. We have also conducted fertility and embryo fetal development toxicology studies with PBI-0451 that have not identified drug-related adverse findings to date. No direct drug-related adverse findings were observed at the highest doses tested in 14-day or 28-day good laboratory practice (GLP) toxicology studies conducted across multiple preclinical species. PBI-0451 does not require ritonavir boosting and based on data to date, we believe PBI-0451 has the potential to be used broadly by patients due to an observed favorable drug-drug interaction profile. Following productive discussions with the FDA, we commenced a Phase 2 clinical trial inSeptember 2022 (Study PBI-0451-0002, NCT 05543707) evaluating PBI-0451 for the treatment of COVID-19. The Phase 2 clinical trial expects to enroll 210 non-hospitalized symptomatic adults with COVID-19who are not at increased risk of progressing to severe illness at approximately 75 sites inthe United States . Given the favorable drug-drug interaction profile observed to date, the use of concomitant medications for underlying health conditions is not restricted in the Phase 2 clinical trial. The study is evaluating antiviral activity, safety, and efficacy of PBI-0451 compared with placebo. The primary objective is to determine the proportion of patients below the limit of detection for infectious SARS-CoV-2 on day three of treatment by infectious virus assay from nasal swab samples. Secondary objectives assessed include additional virologic assessments, safety and tolerability, time to sustained clinical recovery through day 28 defined as key COVID-19 symptoms, and hospitalizations and deaths. Data from the Phase 2 clinical trial is expected in the first quarter of 2023. During the pendency of our Phase 2 clinical trial, we will continue to engage in discussions with the FDA regarding our clinical development program for PBI-0451, including clinical design, patient populations, endpoints (primary and secondary), comparator, and other key study design elements for our potential Phase 3 clinical trials. Subject to Phase 2 clinical trial results and continued discussions with the FDA and global regulatory authorities, we are currently planning to initiate our Phase 3 program in the first half of 2023.
Liquidity Summary
As ofSeptember 30, 2022 , cash and cash equivalents were$209.1 million and we believe that our existing cash resources will be sufficient for at least the next 12 months to allow us to fund current planned operations, including supporting working capital and capital expenditure requirements. We have based this estimate on assumptions that may prove to be wrong, and we could exhaust our available capital resources sooner than we expect. See "- Liquidity and Capital Resources" below. Our future viability beyond that point is dependent on our ability to raise additional capital to finance our operations. ThroughSeptember 30, 2022 , we have funded our operations with gross cash proceeds of$44.5 million from sales of preferred stock, gross cash proceeds of$7.1 million from the sale of SAFEs, which were converted into shares of convertible preferred stock inJanuary 2021 , and net proceeds of approximately$257.5 million in connection with the Business Combination and thePIPE Investment , which we currently believe will be sufficient to allow us to fund current planned operations for at least 12 months from the issuance date of these unaudited condensed financial statements. See Note 1, Description of Business, in this Quarterly Report on Form 10-Q for additional information related to the Business Combination. We have incurred operating losses since our inception. As ofSeptember 30, 2022 , we had an accumulated deficit of$123.9 million and had not yet generated revenues. In addition, we expect to continue to incur significant and increasing expenses and operating losses for the foreseeable future. While we have decided to focus our current research and development activities on PBI-0451 and our next generation coronavirus Mpro inhibitor program, we expect that our research and development expenses, general and administrative expenses and capital requirements will continue to increase substantially in connection with our ongoing development activities, particularly if and as we:
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continue preclinical studies and initiate new clinical trials for PBI-0451, our lead product candidate being tested for the treatment of COVID-19;
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advance the development of our portfolio of other product candidates, including through business development efforts to invest in or license other candidate products or technologies;
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maintain, expand and protect our portfolio of intellectual property;
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Hire additional clinical, quality control, medical, scientific, and technical staff to support our clinical operations;
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seek regulatory approvals for any candidate product that successfully completes clinical trials;
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undertake any pre-commercialization activities to establish sales, marketing and distribution capabilities for any product candidates for which we may receive regulatory authorization or approval;
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expand our infrastructure to accommodate our growing employee base and transition to operating as a public company;
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increase manufacturing requirements for our clinical development, emergency use authorization, and commercial readiness activities; Y
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add operational, financial and management information systems and personnel, including personnel to support our research and development programs, and any future commercialization efforts. Furthermore, we expect to incur additional costs associated with operating as a public company, including significant legal, accounting, investor relations and other expenses that we did not incur as a private company in prior years. As a result, we will need substantial additional funding to support our continuing operations and pursue our growth strategy. Until such time, if ever, as we can generate significant revenue from product sales, we expect to finance our operations through a combination of private and public equity offerings, debt financings or other capital sources, which may include collaborations with other companies, government funding, or other strategic transactions. To the extent that we raise additional capital through the sale of private or public equity or convertible debt securities, existing ownership interests will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect the rights of our stockholders. Debt financing and preferred equity financing, if available, may involve agreements that include covenants limiting or restricting our ability to take specific actions, such as incurring additional debt, making acquisitions or capital expenditures or declaring dividends. If we raise additional funds through collaborations or other strategic transactions 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. We may be unable to raise additional funds or enter into such other agreements or arrangements when needed on favorable terms, or at all. If we fail to raise capital or enter into such agreements as and when needed, we may have to significantly delay, scale back or discontinue the development and commercialization of one or more of our product candidates or delay our pursuit of potential in-licenses or acquisitions. Because of the numerous risks and uncertainties associated with product development, we are unable to predict the timing or amount of increased expenses or when or if we will be able to achieve or maintain profitability. Even if we are able to generate product sales, we may not become profitable. If we fail to become profitable or are unable to sustain profitability on a continuing basis, we may be unable to continue our operations at planned levels and be forced to reduce or terminate our operations.
COVID-19 pandemic
InMarch 2020 , theWorld Health Organization declared the COVID-19 outbreak a pandemic. To date, our financial condition and operations have not been significantly impacted by the COVID-19 pandemic. However, we cannot at this time predict the specific extent, duration, or full impact that the COVID-19 pandemic will have on our financial condition and operations, including ongoing and planned clinical trials and other operations required to support those clinical trials and research and development activities to advance our pipeline. The impact of the COVID-19 pandemic on our financial performance will depend on future developments, including the duration and spread of the outbreak and related governmental advisories and restrictions. These developments and the impact of the COVID-19 pandemic on the financial markets and the overall economy are highly uncertain and cannot be predicted. If the financial markets and/or the overall economy are impacted for an extended period, our results may be materially adversely affected.
Components of Our Results of Operations
Income
We have not generated any revenue since inception and do not expect to generate any revenue from the sale of products in the near future, if ever. If our development efforts are successful and we commercialize our products, or if we enter into collaboration or license agreements with third parties, we may generate revenue in the future from product sales, as well as upfront, milestone and royalty payments from such collaboration or license agreements, or a combination thereof. 13 --------------------------------------------------------------------------------
operating expenses
Research and development expenses
Research and development expenses consist primarily of costs incurred for research activities, including drug discovery efforts and the development of our potential product candidates. We spend research and development costs as they are incurred, which include:
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expenses incurred to conduct preclinical studies, nonclinical studies, and clinical trials necessary to obtain regulatory approval;
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expenses incurred under agreements with contract research organizations (CROs) that are primarily engaged in the oversight and conduct of our drug discovery efforts and preclinical studies, clinical trials and contract manufacturing organizations (CMOs) that are primarily engaged to provide preclinical and clinical drug substance and product for our research and development programs;
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other costs related to acquiring and manufacturing materials in connection with our drug discovery efforts and preclinical studies and clinical trial materials, including manufacturing validation batches, as well as investigative site and consultants that conduct our clinical trials, preclinical studies and other scientific development services;
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employee-related expenses, including salaries and benefits, travel, and stock-based compensation expenses for employees involved in research and development roles; Y
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costs related to meeting regulatory requirements.
We recognize research and development expenses as incurred. Any advance payments that we make for goods or services to be received in the future for use in research and development activities are recorded as prepaid expenses. Such amounts are expensed as the related goods are delivered or the related services are performed, or until it is no longer expected that the goods will be delivered or the services rendered. We estimate and accrue for the value of goods and services received from CROs, CMOs and other third parties each reporting period based on an evaluation of the progress to completion of specific tasks. This process involves reviewing open contracts and purchase orders, communicating with our personnel and service providers to identify services that have been performed on our behalf and estimating the level of service performed and the associated cost incurred for the service when we have not yet been invoiced or otherwise notified of actual costs. At any one time, we may be working on multiple programs. We do not allocate employee costs and overhead costs associated to specific programs because these costs are deployed across multiple programs and, as such, are not separately classified. We use internal resources to manage our research and discovery as well as our preclinical, nonclinical, manufacturing and clinical development activities. To date, substantially all of the research and development costs incurred have been in connection with the development of our lead product candidate, PBI-0451. Research and development activities are central to our business model. Product candidates in later stages of clinical development generally have higher development costs than those in earlier stages of clinical development, primarily due to the increased size and duration of later-stage clinical trials. As a result, we expect that our research and development expenses will increase substantially over the next several years as we commence Phase 3 clinical trials for PBI-0451, as well as conduct preclinical and clinical development, including submitting regulatory filings, for our other product candidates. We also expect our discovery research efforts and our related personnel costs will increase and, as a result, we expect our research and development expenses, including costs associated with stock-based compensation, will increase above historical levels. In addition, we may incur additional expenses related to milestone and royalty payments payable to third parties with whom we may enter into license, acquisition and option agreements to acquire the rights to future product candidates. At this time, we cannot reasonably estimate or know the nature, timing and costs of the efforts that will be necessary to complete the preclinical and clinical development of any of our product candidates or when, if ever, material net cash inflows may commence from any of our product candidates. The successful development and commercialization of our product candidates is highly uncertain. This is due to the numerous risks and uncertainties associated with product development and commercialization, including the uncertainty of the following:
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the scope, progress, outcome and costs of our pre-clinical and non-clinical development activities, clinical trials and other research and development activities;
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establish an appropriate safety and efficacy profile with clinically enabling trials;
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successful patient enrollment and the initiation and completion of clinical trials;
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the timing, receipt, and terms of marketing approvals from applicable regulatory authorities, including the FDA and not
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the extent of any post-market approval engagement with the appropriate regulatory authorities;
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establish clinical and commercial manufacturing capabilities or make arrangements with third-party manufacturers to ensure that we or our third-party manufacturers can successfully manufacture products;
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timely development and delivery of clinical-grade and commercial-grade drug formulations that can be used in our clinical trials and for commercial launch;
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obtain, maintain, defend and enforce patent claims and other intellectual property rights;
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significant and changing government regulations;
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launch commercial sales of our candidate products, if and when approved, either alone or in collaboration with others; Y
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maintain a continuing acceptable safety profile of our product candidates after approval, if any, of our product candidates.
Any changes in the outcome of any of these variables with respect to the development of our product candidates in preclinical, nonclinical and clinical development could mean a significant change in the costs and timing associated with the development of these product candidates. For example, if the FDA or another regulatory authority were to delay our planned start of clinical trials or require us to conduct clinical trials or other testing beyond those that we currently expect or if we experience significant delays in enrollment in any of our planned clinical trials, we could be required to expend significant additional financial resources and time on the completion of clinical development of that product candidate.
General and adminsitrative expenses
General and administrative expenses consist primarily of employee-related expenses, including salaries and related benefits, travel and stock-based compensation for personnel in executive, business development, finance, human resources, legal, information technology and administrative functions. General and administrative expenses also include insurance costs and professional fees for legal, patent, consulting, investor and public relations, pre-commercial planning, accounting and audit services. Our general and administrative costs are expensed as incurred. We anticipate that our general and administrative expenses will increase in the future as we increase our headcount to support the continued development of our product candidates. We also anticipate that we will incur significantly increased accounting, audit, legal, regulatory, compliance and director and officer insurance costs as well as investor and public relations expenses associated with operating as a public company. Additionally, if and when we believe a regulatory approval of a product candidate appears likely, we anticipate an increase in payroll and other employee-related expenses as a result of our preparation for commercial operations, especially as it relates to the sales and marketing of that product candidate.
Income taxes
We have incurred net losses in every period since our inception and have not recorded anyU.S. federal or state income tax benefits for the losses, as they have been offset by valuation allowances.
Interest and Other Income, Net
Interest and other income, net consists primarily of interest income.
Results of Operations
Comparison of the three and nine months ended
The following table sets forth our results of operations for the periods presented (in thousands):
Three Months EndedSeptember 30 ,
Nine months done
2022 2021 Change 2022 2021 Change Operating expenses: Research and development$ 17,375 $ 8,081$ 9,294 $ 50,918 $ 17,792$ 33,126 General and administrative 6,919 3,434 3,485 22,736 6,389 16,347 Total operating expenses 24,294 11,515 12,779 73,654 24,181 49,473 Interest and other income, net 959 3 956 1,242 10 1,232 Net loss$ (23,335 ) $ (11,512 ) $ (11,823 ) $ (72,412 ) $ (24,171 ) $ (48,241 ) 15
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Research and development expenses
The following table summarizes the components of research and development expenses for the periods presented (in thousands):
Three Months Ended September Nine Months Ended 30, September 30, 2022 2021 Change 2022 2021 Change External costs: PBI-0451$ 12,755 $ 6,156 $ 6,599 $ 38,080 $ 13,715 $ 24,365 Discovery programs 51 301 (250 ) 409 492 (83 ) Total external costs 12,806 6,457 6,349 38,489 14,207 24,282 Internal costs: Salaries and benefits 3,097 1,066 2,031 7,320 2,377 4,943 Stock-based compensation 1,220 115 1,105 4,255 246 4,009 Other unallocated costs 252 443 (191 ) 854 962 (108 ) Total internal costs 4,569 1,624 2,945 12,429 3,585 8,844 Total research and development expenses$ 17,375 $ 8,081 $ 9,294 $ 50,918 $ 17,792 $ 33,126 Research and development expenses were$17.4 million for the three months endedSeptember 30, 2022 , compared to$8.1 million for the three months endedSeptember 30, 2021 , an increase of$9.3 million . Research and development expenses were$50.9 million for the nine months endedSeptember 30, 2022 , compared to$17.8 million for the nine months endedSeptember 30, 2021 , an increase of$33.1 million . These increases were primarily driven by increased costs related to advancing our lead product candidate, PBI-0451, into the clinic and higher personnel costs, including stock-based compensation, as we have grown our organization.
General and adminsitrative expenses
General and administrative expenses were$6.9 million for the three months endedSeptember 30, 2022 , compared to$3.4 million for the three months endedSeptember 30, 2021 , an increase of$3.5 million . General and administrative expenses were$22.7 million for the nine months endedSeptember 30, 2022 , compared to$6.4 million for the nine months endedSeptember 30, 2021 , an increase of$16.3 million . These increases were due to increased personnel costs, including stock-based compensation, increased professional fees related to legal, pre-commercial planning and consulting services, and costs associated with being a public company, including directors' and officers' insurance and compliance fees.
Interest and Other Income, Net
Interest and other income, net was$1.0 million for the three months endedSeptember 30, 2022 compared to$0.0 million for the three months endedSeptember 30, 2021 , an increase of$1.0 million . Interest and other income, net was$1.2 million for the nine months endedSeptember 30, 2022 compared to$0.0 million for the nine months endedSeptember 30, 2021 , an increase of$1.2 million . These increases were due to higher interest rates on a greater balance of earning assets.
Liquidity and Capital Resources
Sources of Liquidity and Capital
Since inception, we have not generated any revenue from any product sales or any other sources and have incurred operating losses and negative cash flows from our operations. We have not yet commercialized any of our product candidates, and we do not expect to generate revenue from sales of any product candidates for several years, if ever. ThroughSeptember 30, 2022 , we have funded our operations with gross cash proceeds of$44.5 million from sales of preferred stock, gross cash proceeds of$7.1 million from the sale of SAFEs, which were converted into shares of convertible preferred stock inJanuary 2021 , and net proceeds of approximately$257.5 million in connection with the Business Combination and thePIPE Investment . See Note 1, Description of Business, in this Quarterly Report on Form 10-Q for additional information. As ofSeptember 30, 2022 , we had cash and cash equivalents of$209.1 million and an accumulated deficit of$123.9 million . We believe that our existing cash resources will be sufficient for at least the next 12 months to allow us to fund current planned operations, including supporting working capital requirements. We have based this estimate on assumptions that may prove to be wrong, and we could exhaust our available capital resources sooner than we expect. In the long term, our ability to support working capital and capital expenditure requirements will depend on many factors, including our ability to raise additional capital to finance our operations. See "- Liquidity Overview" above. 16 --------------------------------------------------------------------------------
CRO and CMO agreements
We have entered into agreements in the normal course of business with certain vendors for the provision of goods and services, which includes manufacturing services with CMOs and development services with CROs. These agreements may include certain provisions for purchase obligations and termination obligations that could require payments for the cancellation of committed purchase obligations or for early termination of the agreements. The amount of the cancellation or termination payments vary and are based on the timing of the cancellation or termination and the specific terms of the agreements. During the periods presented, we did not have, and we do not currently have, any commitments or obligations, including contingent obligations, arising from arrangements with unconsolidated entities or persons that have or are reasonably likely to have a material current or future effect on our financial condition, changes in financial condition, revenues or expenses, results of operations, liquidity, cash requirements or capital resources.
Cash flow
The following table summarizes our cash flows for the periods presented (in thousands): Nine Months Ended September 30, 2022 2021 Net cash used in operating activities$ (59,226 ) $ (20,137 ) Net cash (used in) provided by financing activities (397 ) 43,110
Net increase (decrease) in cash and cash equivalents
$ 22,973 Operating Activities During the nine months endedSeptember 30, 2022 , net cash used in operating activities consisted of a net loss of$72.4 million . Changes to our working capital included increases to our accrued expenses of$4.0 million and prepaid expenses and other assets of$1.6 million and a decrease in accounts payable of$0.6 million . Non-cash activities included a charge of$8.1 million to stock-based compensation expense of which$2.6 million related to the accelerated recognition of stock compensation expense for our former Chief Executive Officer and President, Dr.Uri Lopatin ,who transitioned to a consultant onJuly 31, 2022 . See Note 8, Stock-Based Compensation, in this Quarterly Report on Form 10-Q for additional information.
During the nine months that ended
Financing activities
During the nine months that ended
During the nine months that ended
Funding Requirements
Our primary use of cash is to fund operating expenses, predominantly related to our research and development activities. Cash used to fund operating expenses is impacted by the timing of when we pay these expenses, as reflected in the change in our outstanding accounts payable, accrued expenses and prepaid expenses. We expect our expenses to increase substantially in connection with our ongoing activities, particularly if and as we advance our clinical development program for PBI-0451. We also incur and will continue to incur additional costs associated with operating as a public company, including significant insurance, legal, accounting, investor relations and other expenses that we did not incur as a private company. The timing and amount of our operating expenditures will depend largely on our ability to:
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advancing preclinical development of our early-stage program and initiating clinical trials of our product candidates;
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manufacture, or have manufactured on our behalf, our preclinical, nonclinical and clinical drug material and develop processes for late stage and commercial manufacturing;
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seek authorizations and/or regulatory approvals for any candidate product that successfully completes clinical trials;
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establish a sales, marketing, medical affairs, managed care and distribution infrastructure to commercialize any product candidates for which we may obtain marketing approval and intend to commercialize on our own;
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hire additional clinical, quality control, and scientific staff;
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expand our operational, financial and management systems and increase personnel, including personnel to support our clinical development, and manufacturing and commercialization efforts;
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manage the costs of preparing, filing and processing patent applications, maintaining and protecting our intellectual property rights, including the enforcement and defense of intellectual property-related claims; Y
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manage the costs of operating as a public company.
working capital
Due to the many risks and uncertainties associated with the research, development, and commercialization of product candidates, we are unable to estimate the exact amount of our working capital requirements. Our future funding requirements will depend on and could increase significantly as a result of many factors, including:
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the scope, progress, results and costs of researching and developing our product candidates and conducting pre-clinical and non-clinical studies and clinical trials;
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the costs, timing and outcome of regulatory review of our product candidates;
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the costs, time and capacity to manufacture our product candidates to fuel our preclinical and clinical development efforts and our clinical trials;
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the costs of future activities, including product sales, medical affairs, marketing, manufacturing and distribution, for any of our product candidates for which we receive marketing approval;
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the costs of manufacturing commercial-grade products and the inventory needed to support a possible future commercial launch;
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the possibility of receiving additional non-dilutive funding, including grants from organizations and foundations;
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revenue, if any, received from the commercial sale of our products, should any of our product candidates receive marketing approval;
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the costs of preparing, filing, and prosecuting patent applications, obtaining, maintaining, expanding, and enforcing our intellectual property rights, and defending intellectual property-related claims;
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our ability to establish and maintain favorable partnerships, if any; Y
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the extent to which we acquire or license other candidate products and technologies.
Critical accounting policies and significant judgments and estimates
The preparation of our unaudited condensed financial statements in conformity withU.S. generally accepted accounting principles requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities, as of the date of the financial statements, and the reported amounts of revenue and expenses during the reported period. If these estimates differ significantly from actual results, the impact to the unaudited condensed consolidated financial statements may be material. There have been no material changes in our critical accounting policies and estimates from those disclosed in our Annual Report on Form 10-K for the fiscal year endedDecember 31, 2021 . Please refer to Part II, Item 7 of our Annual Report on Form 10-K for the fiscal year endedDecember 31, 2021 , for a discussion of our critical accounting policies and significant judgments and estimates.
Recent Accounting Pronouncements
We have not adopted any significant accounting policies sinceDecember 31, 2021 . Upon evaluation of recently issued accounting pronouncements, we do not believe any will have a material impact on our condensed financial statements or related financial statement disclosures.
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