You should read the following discussion and analysis of our financial condition and results of operations together with our financial statements and the related notes appearing elsewhere in this report. In addition to historical information, this discussion and analysis contains forward-looking statements that involve risks, uncertainties and assumptions. Our actual results may differ materially from those discussed below. Factors that could cause or contribute to such differences include, but are not limited to, those identified below, and those discussed in the section titled "Risk Factors." The following discussion highlights our results of operations and the principal factors that have affected our financial condition as well as our liquidity and capital resources for the periods described, and provides information that management believes is relevant for an assessment and understanding of the statements of financial condition and results of operations presented herein. The following discussion and analysis are based on the audited financial statements contained in this report, which we have prepared in accordance withUnited States generally accepted accounting principles. You should read the discussion and analysis together with such financial statements and the related notes thereto. Explanatory Note OnMay 17, 2020 ,Neurotrope, Inc. (Neurotrope or Parent) announced plans for the complete legal and structural separation of us fromNeurotrope , also known as the Spin-Off. Under the Separation and Distribution Agreement,Neurotrope distributed all of its equity interest in us toNeurotrope's stockholders. Following the Spin-Off,Neurotrope does not own any equity interest in us, and we operate independently fromNeurotrope .Neurotrope Bioscience, Inc. was a wholly-owned subsidiary ofNeurotrope prior to the completion of the Spin-Off onDecember 7, 2020 (see below for description of Spin-Off).Neurotrope Bioscience, Inc. represented substantially all the business ofNeurotrope . OnDecember 6, 2020 ,Neurotrope approved the final distribution ratio and holders of record ofNeurotrope common stock,Neurotrope preferred stock and certain warrants as ofNovember 30, 2020 received a pro rata distribution at the rate of (i) one share of our Common Stock for every five shares ofNeurotrope common stock held, (ii) one share of our Common Stock for every five shares ofNeurotrope common stock issuable upon conversion ofNeurotrope preferred stock held and (iii) one share of our Common Stock for every five shares ofNeurotrope common stock issuable upon exercise of certainNeurotrope warrants held that were entitled to participate in the Spin-Off pursuant to the terms thereof.
Basis of Presentation
The audited financial statements for the fiscal years endedDecember 31, 2022 and 2021 include a summary of our significant accounting policies and should be read in conjunction with the discussion below and our financial statements and related notes included elsewhere in this Annual Report of Form 10-K. In the opinion of management, all material adjustments necessary to present fairly the results of operations for such periods have been included in the financial statements. All such adjustments are of a normal recurring nature.
Overview
We are a biopharmaceutical company with product candidates in pre-clinical and clinical development. We began operations inOctober 2012 . We are principally focused on developing a product platform based upon a drug candidate called Bryostatin-1 for the treatment of Alzheimer's disease, which is in the clinical testing stage. We are also evaluating Bryostatin-1 for other neurodegenerative or cognitive diseases and dysfunctions, such as Fragile X syndrome, MS, and Niemann-Pick Type C disease, which have undergone pre-clinical testing. OnDecember 16, 2022 , we announced that an extended confirmatory Phase 2 study of Bryostatin-1 in moderate to severe AD (Study #204) did not achieve statistical significance on the primary endpoint, which was change from baseline to Week 13 in the SIB total score assessment obtained after completion of the second seven-dose course of treatment (week 28 of trial). We are currently evaluating the data and determining next steps with the development of Bryostatin-1 for AD as well as for other potential indications. We are a party to a technology license and services agreement with the originalBlanchette Rockefeller Neurosciences Institute (which has been known asCognitive Research Enterprises, Inc. sinceOctober 2016 ), and its affiliateNRV II, LLC , which we collectively refer to herein as "CRE," pursuant to which we now have an exclusive non-transferable license to certain patents and 58
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technologies required to develop our proposed products. We were formed for the primary purpose of commercializing the technologies initially developed by BRNI for therapeutic applications for AD or other cognitive dysfunctions. These technologies have been under development by BRNI since 1999 and, untilMarch 2013 , had been financed through funding from a variety of non-investor sources (which include not-for-profit foundations, theNIH , which is part of theU.S. Department of Health and Human Services , and individual philanthropists). FromMarch 2013 forward, development of the licensed technology has been funded principally through us in collaboration with CRE.
OnJanuary 21, 2021 , we entered into Securities Purchase Agreements (the "Purchase Agreement") with certain accredited investors (the "Purchasers") to issue (a) an aggregate of 2,333,884 shares of our Common Stock and/or Pre-Funded Warrants to purchase shares of Common Stock, (b) Series E Warrants to purchase 2,333,908 shares of Common Stock, with an exercise price of$8.51 per share (subject to adjustment), for a period of twelve months from the date of an effective registration statement and (c) Series F Warrants to purchase up to an aggregate of 2,333,908 shares of Common Stock, with an exercise price of$6.90 per share (subject to adjustment), for a period of five years from the date of issuance at a combined purchase price of$6.00 per share of Common Stock and Warrants (the "Offering"). We received total gross proceeds of approximately$14,000,000 in Offering. In connection with the Purchase Agreement, we entered into a Registration Rights Agreement with the Purchasers (the "Registration Rights Agreement") onJanuary 21, 2021 . Under the terms of the Registration Rights Agreement, we agreed to register the shares of Common Stock and the shares of Common Stock issuable upon exercise of the Warrants and the Pre-Funded Warrants sold to the Purchasers pursuant to the Purchase Agreement. We filed a registration statement on Form S-1 in connection with the Registration Rights Agreement onFebruary 8, 2021 . We also agreed to other customary obligations regarding registration, including indemnification and maintenance of the effectiveness of the registration statement. In connection with the Offering, we paid our Placement Agents (i) a cash fee equal to ten percent (10%) of the gross proceeds from any sale of securities in the Offering sold to Purchasers introduced by the Placement Agent and (ii) warrants to purchase shares of Common Stock equal to ten percent (10%) of the number of shares of Common Stock sold to Purchasers introduced by the Placement Agent, with an exercise price of$6.90 per share and a five-year term.
OnJune 14, 2021 , we entered into Securities Purchase Agreements (the "June Purchase Agreement") with certain accredited investors (the "June Purchasers") to issue (a) an aggregate of 1,653,281 shares of Common Stock and/or prefunded warrants to purchase shares of Common Stock at an exercise price of$0.01 per share (the "June Pre-Funded Warrants") and (b) Series G warrants to purchase up to an aggregate of 1,653,281 shares of Common stock, with an exercise price of$8.51 per share (subject to adjustment), for a period of five years from the date of issuance (the "June Warrants") at a combined purchase price of$7.547 per share of Common Stock and Warrants (the "June Offering"). We received total gross proceeds of approximately$12.5 million and net proceeds of approximately$11.2 million from the June Offering. In connection with the June Purchase Agreement, we and the June Purchasers entered into a Registration Rights Agreement (the "June Registration Rights Agreement") onJune 14, 2021 . Under the terms of the June Registration Rights Agreement, we agreed to register the shares of Common Stock and the shares of Common Stock issuable upon exercise of the June Warrants and the June Pre-Funded Warrants sold to the Buyers pursuant to the June Purchase Agreement. We filed a registration statement for the resale of such securities onJune 24, 2021 , and it was declared effective by theSEC onJuly 6, 2021 . We also agreed to other customary obligations regarding registration, including indemnification and maintenance of the effectiveness of the registration statement. In connection with the June Offering, pursuant to an Engagement Agreement, datedJune 14, 2021 (the "June Engagement Agreement"), between the Company andKatalyst Securities LLC (the "June Placement Agent"), we paid the June Placement Agent (i) a cash fee equal to ten percent (10%) of the gross proceeds from the sale of securities in the June Offering sold to June Purchasers introduced by the June Placement Agent and (ii) 152,378 warrants to purchase shares of Common Stock equal to ten percent (10%) of the number of shares of Common Stock sold to June Purchasers introduced by the June Placement Agent, with an exercise price of$7.547 per share and a five-year term (the "June Broker Warrants"). Furthermore, we agreed to pay the June Placement Agent a warrant exercise fee equal to ten percent (10%) of the aggregate exercise price that is paid in connection with each exercise, if any, of the Warrants initially held by Purchasers introduced by the June Placement Agent. The June Placement Agent
was also entitled to the 59 Table of Contents foregoing fees with respect to any future financing or capital-raising transaction by us (a "Subsequent Financing"), to the extent such financing or capital is provided to us by investors whom the June Placement Agent had introduced to us, in the event such Subsequent Financing is consummated within eighteen (18) months following the closing of the June Offering.
OnNovember 17, 2022 , we entered into the November Purchase Agreement with theNovember Investors , pursuant to which we agreed to sell to theNovember Investors (i) an aggregate of 15,000 shares of Series B Preferred Stock and (ii) November Warrants to acquire up to an aggregate of 1,935,485 shares of Common Stock. We received total gross proceeds of approximately$15 million from the November Private Placement. The terms of the Series B Preferred Stock are as set forth in the Certificate of Designations. The Series B Preferred Stock will be convertible into Preferred Shares at the election of the holder at any time at the Conversion Price. The Conversion Price is subject to customary adjustments for stock dividends, stock splits, reclassifications and the like, and subject to price-based adjustment in the event of any issuances of Common Stock, or securities convertible, exercisable or exchangeable for Common Stock, at a price below the then-applicable Conversion Price (subject to certain exceptions). We will be required to redeem the Series B Preferred Stock in 15 equal monthly installments, commencing onJune 1, 2023 . The amortization payments due upon such redemption are payable, at our election, in cash, or subject to certain limitations, in shares of Common Stock valued at the lower of (i) the Conversion Price then in effect and (ii) the greater of (A) a 15% discount to the average of the three lowest closing prices of the Common Stock during the thirty trading day period immediately prior to the date the amortization payment is due or (B) the lower of$1.25 and 20% of the Minimum Price (as defined in Rule 5635 of the Rule of theNasdaq Stock Market ) on the date of receipt of Nasdaq Stockholder Approval (as defined below); provided that if the amount set forth in clause B is the lowest effective price, we will be required to pay the amortization payment in cash. We may require holders to convert their Series B Preferred Stock into Preferred Shares if the closing price of the Common Stock exceeds$11.625 per share for 20 consecutive trading days and the daily trading volume of the Common Stock exceeds 100,000 shares per day during the same period and certain equity conditions described in the Certificate of Designations are satisfied. The holders of the Series B Preferred Stock are entitled to dividends of 7% per annum, compounded monthly, which are payable in cash or shares of Common Stock at our option, in accordance with the terms of the Certificate of Designations. Upon the occurrence and during the continuance of a Triggering Event (as defined in the Certificate of Designations), the Series B Preferred Stock will accrue dividends at the rate of 15% per annum. Upon conversion or redemption, the holders of the Series B Preferred Stock are also entitled to receive a dividend make-whole payment. The holders of Series B Preferred Stock have no voting rights on account of the Series B Preferred Stock, other than with respect to certain matters affecting the rights of the Series B Preferred Stock. Notwithstanding the foregoing, our ability to settle conversions and make amortization and dividend make-whole payments using shares of Common Stock is subject to certain limitations set forth in the Certificate of Designations, including a limit on the number of shares that may be issued until the time, if any, that our stockholders have approved the issuance of more than 19.9% of our outstanding shares of Common Stock in accordance with Nasdaq listing standards (the "Nasdaq Stockholder Approval"). We agreed to seek stockholder approval of these matters at a meeting to be held no later thanJune 1, 2023 . Further, the Certificate of Designations contains a certain beneficial ownership limitation after giving effect to the issuance of shares of Common Stock issuable upon conversion of, or as part of any amortization payment or dividend make-whole payment under, the Certificate of Designations or November Warrants. The Certificate of Designations includes certain Triggering Events (as defined in the Certificate of Designations), including, among other things, the failure to file and maintain an effective registration statement covering the sale of the holder's securities registrable pursuant to the November Registration Rights Agreement (defined below) and our failure to pay any amounts due to the holders of the Series B Preferred Stock when due. In connection with a Triggering Event, each holder of Series B Preferred Stock will be able to require us to redeem in cash any or all of the holder's Series B Preferred Stock at a premium set forth in the Certificate of Designations.
We are subject to certain affirmative and negative covenants regarding the incurrence of indebtedness, acquisition and investment transactions, the existence of liens, the repayment of indebtedness, the payment of cash in respect of dividends (other than dividends pursuant to the Certificate of Designations), distributions or redemptions, and the transfer of assets, among other matters.
60 Table of Contents The November Warrants are exercisable for Warrant Shares immediately at an exercise price of$7.75 per share (the "Exercise Price") and expire five years from the date of issuance. The Exercise Price is subject to customary adjustments for stock dividends, stock splits, reclassifications and the like, and subject to price-based adjustment, on a "full ratchet" basis, in the event of any issuances of Common Stock, or securities convertible, exercisable or exchangeable for Common Stock, at a price below the then-applicable Exercise Price (subject to certain exceptions). In connection with the November Purchase Agreement, we and theNovember Investors entered into a Registration Rights Agreement (the "November Registration Rights Agreement") onNovember 17, 2022 . Under the terms of the November Registration Rights Agreement, we agreed to register 200% of the Preferred Shares, the Warrant Shares and the shares of common stock issuable as amortization payments as well as any shares of common stock paid as dividends. We filed a registration statement for the resale of such securities onDecember 16, 2022 . We intend to file an additional registration statement to give effect to the amendment to the certificate of designations for the Series B Preferred Stock. We also agreed to other customary obligations regarding registration, including indemnification and maintenance of the effectiveness of the registration statement. In connection with the November Private Placement, pursuant to an Engagement Letter, between the Company andKatalyst Securities LLC (the "November Placement Agent"), the Company paid the November Placement Agent (i) a cash fee equal to 7% of the gross proceeds from any sale of securities in the November Private Placement and (ii) warrants to purchase shares of Common Stock equal to 3% of the number of shares of common stock that the Preferred Shares are initially convertible into, with an exercise price of$7.75 per share and a five-year term.
Reverse Stock Split
OnMay 19, 2021 , we effected a 1-for-4 reverse stock split of our shares of Common Stock. As a result of the reverse stock split, every four (4) shares of our pre-reverse split Common Stock was combined and reclassified into one share of Common Stock. All share and per share information herein has been adjusted to retrospectively reflect this reverse stock split.
Results of Most Recent Extended Confirmatory Phase 2 Clinical Trial
OnJuly 23, 2020 , we entered into the 2020 Services Agreement with WCT. The 2020 Services Agreement relates to services for our Phase 2 clinical study assessing the safety, tolerability and long-term efficacy of Bryostatin-1 in the treatment of moderately severe AD subjects not receiving memantine treatment. OnJanuary 22, 2022 , the Company executed a change order with WCT to accelerate trial subject recruitment totaling approximately$1.4 million . The updated total estimated budget for the services, including pass-through costs, is approximately$11.0 million . As previously disclosed, onJanuary 22, 2020 , we were granted a$2.7 million award from theNIH , which award is being used to support the 2020 Study, resulting in a current estimated net budgeted cost of the 2020 Study to us of$8.3 million . Of the$2.7 million grant, virtually all has been received as ofFebruary 22, 2022 . As ofDecember 31, 2022 , we incurred cumulative expenses of approximately$10.1 million associated with services provided by WCT and certain pass thru expenses incurred by WCT, which was offset byNIH reimbursements recognized of$2.7 million and, for the year endedDecember 31, 2022 , we incurred expenses of approximately$3.4 million associated with services provided by WCT and certain pass thru expenses incurred by WCT. OnDecember 16, 2022 ,Synaptogenix issued a press release announcing that an extended confirmatory Phase 2 study of Bryostatin-1 in moderate to severe AD (Study #204) did not achieve statistical significance on the primary endpoint, which was change from baseline to Week 13 in the SIB total score assessment obtained after completion of the second seven-dose course of treatment (week 28 of trial). OnMarch 7, 2023 , we announced results of our analysis of secondary endpoints and post hoc analysis from our Phase 2 study of Bryostatin-1. In the secondary endpoint analysis, changes from baseline at Weeks 9, 20, 24, 30, and 42 in the SIB (Severe Impairment Battery) total score were not statistically significant in the total patient population, and no pre-specified secondary endpoints were met with statistical significance in the low-to-moderately severe AD patient stratum. However, nearly all pre-specified secondary endpoints in the most advanced and severe AD (MMSE: 10-14) patient population, with baseline MMSE-2 (Mini-Mental State Examination, 2nd Edition) scores of 10-14, were achieved with statistical significance (p = <0.05, 2-tailed). Data also showed statistical significance in exploratory secondary endpoints for the MMSE-2 10-14 stratum, and post hoc analysis was positive. 61
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Open Label Dose Ranging Clinical Trial
OnMay 12, 2022 , the Company entered into a services agreement with WCT (the "2022 Services Agreement"). The 2022 Services Agreement relates to services for a Phase 2 "open label," dose ranging study, clinical trial assessing the safety, tolerability and efficacy of Bryostatin-1 administered via infusion in the treatment of moderately severe to severe AD subjects not receiving memantine treatment (the "2022 Study"). Pursuant to the terms of the 2022 Services Agreement, WCT provided services to enroll approximately 12 2022 Study subjects. The first 2022 Study site was initiated during the third quarter of 2022. The total estimated budget for the services, including pass-through costs, is currently approximately$1.5 million . Either party may terminate the 2022 Services Agreement without cause upon ninety days prior written notice. Furthermore, in the event of a material breach by the other party, which breach is not cured by the breaching party, the other party may terminate the agreement upon 30 days' prior written notice. The Company terminated the 2022 Services Agreement inDecember 2022 . The Company incurred approximately$1.4 million of cumulative expenses associated with the 2022 Study as ofDecember 31, 2022 . All of the expenses are reflected in the statement of operations for the year endedDecember 31, 2022 . As ofDecember 31, 2022 , approximately$185,000 of WCT 2022 Study prepayments is included as a prepaid expense and other current assets in the Company's balance sheet. In addition, approximately$123,000 is included in accounts payable
and accrued expenses. Other Development Projects To the extent resources permit, we may pursue development of selected technology platforms with indications related to the treatment of various disorders, including neurodegenerative disorders such as AD, based on our currently licensed technology and/or technologies available from third party licensors or collaborators. Nemours Agreement
OnSeptember 5, 2018 , we announced a collaboration with Nemours, a premierU.S. children's hospital, to initiate a clinical trial in children with Fragile X. In addition to the primary objective of safety and tolerability, measurements will be made of working memory, language and other functional aspects such as anxiety, repetitive behavior, executive functioning, and social behavior. OnAugust 5, 2021 , the Company announced its memorandum of understanding withNemours A.I. DuPont Hospital ("Nemours") to initiate a clinical trial using Bryostatin-1, under Orphan Drug Status, to treat FragileX. The Company intends to provide the Bryostatin-1 drug product candidate and obtain the investigational new drug documentation ("IND") and Nemours intends to provide the clinical site and attendant support for the trial. The Company and Nemours, jointly, will develop the trial protocol. The Company currently estimates its total trial and IND cost to be approximately$2 million , an increase of$1.3 million from our prior estimates based upon bringing in a third party to conduct our initial clinical trial. As of the end of the period covered by this annual report, the Company has incurred cumulative expenses associated with this agreement of approximately$100,000 . The Company has filed for an IND with the FDA. The FDA has placed the development of the IND on clinical hold pending completion of further analytics relating to drug pharmacokinetics and pharmacodynamics. The Company is currently evaluating its plans to advance Fragile X development.
OnFebruary 23, 2022 , the Company announced its collaboration with theCleveland Clinic to pursue possible treatments for MS. The collaboration entails filing an IND and conducting initial clinical trials using Bryostatin-1. Future development work will be conducted pursuant to statements of work to be determined.
Impact of COVID-19
We face the ongoing risk that the coronavirus pandemic may slow the conduct of our current trial. In order to prioritize patient health and that of the investigators at clinical trial sites, we will monitor enrollment of new patients in our Phase 2 clinical trial of Bryostatin-1 for the treatment of patients with Alzheimer's disease. In addition, some patients may be unwilling to enroll in our trials or be unable to comply with clinical trial protocols if quarantines or travel restrictions impede patient movement or interrupt healthcare 62 Table of Contents services. These and other factors outside of our control could delay our ability to conduct clinical trials or release clinical trial results. In addition, the effects of the ongoing coronavirus pandemic may also increase non-trial costs such as insurance premiums, increase the demand for and cost of capital, increase loss of work time from key personnel, and negatively impact our key clinical trial vendors and supplier of API. In light of the COVID-19 outbreak, the FDA has issued a number of new guidance documents. Specifically, as a result of the potential effect of the COVID-19 outbreak on many clinical trial programs in the US and globally, the FDA issued guidance concerning potential impacts on clinical trial programs, changes that may be necessary to such programs if they proceed, considerations regarding trial suspensions and discontinuations, the potential need to consult with or make submissions to relevant ethics committees,Institutional Review Board ("IRBs"), and the FDA, the use of alternative drug delivery methods, and considerations with respect the outbreak's impacts on endpoints, data collection, study procedures, and analysis. Such developments may result in delays in our development of Bryostatin-1.
Results of Operations
Comparison of the years ended
The following table summarizes our results of operations for the years ended
Years ended December 31, Dollar 2022 2021 Change % Change Revenue $ - $ - $ - 0 % Operating Expenses: Research and development expenses$ 6,324,928 $ 4,336,414 $ 1,988,514 45.9 % General and administrative expenses$ 9,810,068 $ 8,281,893 $ 1,528,175 18.5 % Other income (Expense), net$ 10,561,039 $ 7,110
$ 10,553,929 148,437 % Net loss$ 5,573,957 $ 12,611,197 $ (7,037,240) (55.8) % Revenues
We did not generate any revenues for the years ended
Operating Expenses Overview Total operating expenses for the year endedDecember 31, 2022 were$16,134,996 as compared to$12,618,307 for the year endedDecember 31, 2021 , an increase of approximately 27.9%. The increase in total operating expenses is due to the increase in research and development and general and administrative expenses.
Research and Development Expenses
For the year endedDecember 31, 2022 , we incurred$6,324,928 in research and development expenses as compared to$4,336,414 for the year endedDecember 31, 2021 , an increase of approximately 45.9%. These expenses were incurred pursuant to developing Byrostatin-1, specifically expenses relating to our ongoing Phase 2 clinical trial for AD. Of these expenses, for the year endedDecember 31, 2022 ,$5,422,142 was incurred principally relating to our current confirmatory clinical trial and related storage of drug product,$327,908 for clinical consulting services,$29,999 of amortization of prepaid licensing fees relating to theStanford andMount Sinai license agreements,$69,608 for development of alternative drug supply withStanford University and$475,271 of non-cash stock options compensation expense as compared to$3,276,465 for the year endedDecember 31, 2021 , which includes an expense offset of$1,652,429 reimbursed pursuant to ourNIH grant, was incurred principally relating to our confirmatory clinical trial and related storage of drug product,$299,178 for clinical consulting services,$30,001 of amortization of prepaid licensing fees relating to theStanford andMount Sinai license agreements,$60,731 for development of alternative drug supply withStanford University and$670,039 of non-cash stock options compensation expense. 63 Table of Contents We expect our research and development expenses to substantially decrease in the short term, as our ongoing Phase 2 clinical trial for AD is coming to an end. Other development expenses might increase, as our resources permit, in order to advance our potential product candidates. We are continuing to determine how to proceed with respect to our other current development programs for Bryostatin-1.
General and Administrative Expenses
We incurred$9,810,068 and$8,281,893 of general and administrative expenses for the years endedDecember 31, 2022 and 2021, respectively, an increase of approximately 18.5%. Of the amounts for the year endedDecember 31, 2022 , as compared to the comparable 2021 period:$1,670,242 was incurred primarily for wages, bonuses, vacation pay, severance, taxes and insurance, versus$1,765,502 for the 2021 comparable period;$678,903 was incurred for legal expenses, versus$662,921 for the 2021 comparable period;$1,022,713 was incurred for outside operations consulting services, versus$1,567,060 for the 2021 comparable period as, for the year endedDecember 31, 2021 , we incurred additional non-cash expenses associated with warrant issuances for investment banking consulting services;$107,316 was incurred for travel expenses, versus$60,387 for the 2021 comparable period. Travel for 2022 returned to pre-pandemic levels;$755,760 was incurred for investor relations services, versus$301,410 for the 2021 comparable period as, for 2022, we incurred additional non-cash expenses relating to communications surrounding our clinical trial results;$178,545 was incurred for professional fees associated with auditing, financial, accounting and tax advisory services, versus$176,365 for the 2021 comparable period;$736,225 was incurred for insurance, versus$705,133 for the 2021 comparable period;$493,649 was incurred for franchise taxes, utilities, supplies, license fees, filing costs, rent, advertising and other, versus$430,770 for the 2021 comparable period;$898,023 of non-cash expenses reflect the allocated cost associated with our issuance of warrants, versus$0 for the 2021 comparable period; and$3,268,692 was recorded as non-cash stock options compensation expense, versus$2,612,345 for the 2021 comparable period.
Other Income / Expense
We recognized total other income of$10,561,039 for the year endedDecember 31, 2022 , versus$7,110 for the year endedDecember 31, 2021 . We earned$335,039 of interest income for the year endedDecember 31, 2022 as compared to$7,110 for the year endedDecember 31, 2021 on funds deposited in interest bearing money market accounts. The increase is primarily attributable to the increase in money market interest income rates for the year endedDecember 31, 2022 versus 2021. In addition, during the fourth quarter 2022, the Company recorded a decrease in fair value of warrant liability of$8,405,000 and a change in fair value of derivative liability of$1,821,000 . These changes in fair value are based upon the revaluation of their related liabilities at year end versus the liabilities reflected at the time of the Company's November Private Placement.
Net loss
We incurred losses of$5,573,957 and$12,611,197 for the years endedDecember 31, 2022 and 2021, respectively. The decreased loss was primarily attributable to the changes in fair value of warrant and derivative liabilities and increase in interest income offset by an increase in net research and development expenses associated with our ongoing Phase 2 confirmatory clinical trial and general and administrative expenses.
Financial Condition, Liquidity and Capital Resources
Since inception, we have incurred negative cash flows from operations. As ofDecember 31, 2022 , we had working capital of$37,272,851 as compared to working capital of$33,509,304 as ofDecember 31, 2021 . The$3,763,548 increase in working capital was primarily attributable to our November Private Placement resulting in net cash proceeds of approximately$13.9 million , cash proceeds from warrant exercises of approximately$553,000 million , offset by approximately$10.2 million from operating expenses. We expect that our cash and cash equivalents of approximately$37.5 million as ofDecember 31, 2022 will be sufficient to support our projected operating requirements for at least the next 12 months from the date of filing this Annual Report on Form 10-K, which would include the continuing development of Bryostatin-1, our novel drug candidate targeting the activation of PKC epsilon. We expect to require additional capital in order to initiate, pursue and complete all potential AD clinical trials and obtain regulatory approval of one or more therapeutic candidates. However, additional future funding may not
be available to us on acceptable 64 Table of Contents
terms, or at all. If we are unable to access additional funds when needed, we may not be able to initiate, pursue and complete all planned clinical trials or continue the development of our product candidates or we could be required to delay, scale back or eliminate some or all of our development programs and operations. Any additional equity financing, if available, may not be available on favorable terms, would most likely be significantly dilutive to our current stockholders and debt financing, if available, and may involve restrictive covenants. If we are able to access funds through collaborative or licensing arrangements, we may be required to relinquish rights to some of our technologies or product candidates that we would otherwise seek to develop or commercialize on our own, on terms that are not favorable to us. Our ability to access capital when needed is not assured and, if not achieved on a timely basis, would likely materially harm our business and financial condition.
Sources and Uses of Liquidity
Prior to the Spin Off, we satisfied our operating cash requirements from transfers of cash fromNeurotrope , which was raised byNeurotrope through the private placement of equity securities sold principally to outside investors. Following the Spin Off, we have satisfied our operating cash requirements through the private placements described above. We expect to continue to incur expenses, resulting in losses and negative cash flows from operations, over at least the next several years as we may continue to develop AD and other therapeutic products. We anticipate that this development may include clinical trials in addition to our current ongoing clinical trial and additional research and development expenditures. Years EndedDecember 31, 2022 2021
Cash used in operating activities
7,414 3,199
Cash provided by financing activities 14,483,150 37,132,858
Cash used in operating activities was$11,211,245 for the year endedDecember 31, 2022 , compared to$8,710,725 for the year endedDecember 31, 2021 . The$2,500,521 increase primarily resulted from the decrease in accounts payable and accrued expenses of approximately$1.2 million and changes in fair value of warrant and derivative liabilities of approximately$10.2 million offset by a decrease in net loss of approximately$7.0 million , an increase in non-cash stock-based compensation expenses of approximately$460,000 million , an increase in non-cash warrant issuance cost of approximately$0.9 million and a decrease in prepaid expenses of approximately$540,000 for the year endedDecember 31, 2022 .
Net cash used in investing activities was$7,414 for the year endedDecember 31, 2022 compared to$3,199 for the year endedDecember 31, 2021 . The cash used in investing activities for both years was for capital expenditures.
Net Cash Provided by Financing Activities
Net cash provided by financing activities was$14,483,150 for the year endedDecember 31, 2022 compared to cash used in financing activities of$37,132,858 for the year endedDecember 31, 2021 . The change in net cash provided by financing activities for 2022 and 2021 were principally the result of approximately$13.9 million of net proceeds from our private placement offering and approximately$553,000 in warrant exercises for 2022 and$23.7 million of net proceeds from our private placement offerings and$13.4 million from warrant exercises during 2021.
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