The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our Annual Report on Form 10-K for the year endedDecember 31, 2021 , filed with theSEC onMarch 24, 2022 , or our Annual Report, as well as our unaudited condensed financial statements and related notes included in this Quarterly Report on Form 10-Q, or this Quarterly Report. Forward-Looking Statements This report contains forward-looking statements and information within the meaning of Section 27A of the Securities Act of 1933, as amended, or the Securities Act, and Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act, which are subject to the "safe harbor" created by those sections. These forward-looking statements include, but are not limited to, statements concerning our strategy, future operations, future financial position, future revenues, projected costs, prospects and plans and objectives of management. The words "anticipate," "believe," "could," "designed," "estimate," "expect," "intend," "may," "plan," "potential," "project," "will," "would," and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. We may not actually achieve the plans, intentions or expectations disclosed in our forward-looking statements and you should not place undue reliance on our forward-looking statements. Actual results or events could differ materially from the plans, intentions and expectations disclosed in the forward-looking statements that we make. These forward-looking statements involve risks and uncertainties that could cause our actual results to differ materially from those in the forward-looking statements, including, without limitation, the risks set forth in Part II, Item 1A, "Risk Factors" in this Quarterly Report on Form 10-Q, Part I, Item 1A, "Risk Factors" in our Annual Report and in our other filings with theSEC . The forward-looking statements are applicable only as of the date on which they are made, and we do not assume any obligation to update any forward-looking statements.
Overview
We are a clinical stage biopharmaceutical company focused on discovering and developing novel, controllable cellular immunotherapies for various forms of cancer, including both hematological cancers and solid tumors. We are advancing CAR-T cell therapies which are an innovative approach in which a patient's or donor's T cells are genetically modified to carry chimeric antigen receptors, or CARs. We are using our proprietary Chemical Induction of Dimerization, or CID, technology platform to engineer our product candidates with switch technologies that are designed to control components of the immune system in real time. By incorporating our CID platform, our product candidates may offer better efficacy and safety outcomes than are seen with current cellular immunotherapies. Cell behavior is controlled by cascades of specialized signaling proteins. CID consists of molecular switches, modified forms of these signaling proteins, which are triggered inside the patient by infusion of a small molecule, instead of by natural upstream signals. We genetically introduce these molecular switches into the appropriate immune cells and deliver the cells to the patient in the manner of conventional cellular immunotherapy. We have developed two such switches: an "activation switch," designed to stimulate activation, proliferation and persistence of the immunotherapy cells and provide other immunomodulatory benefits, and a "safety switch," designed to initiate programmed cell death, or apoptosis, of the immunotherapy cells. Each of our product candidates incorporates one or both switches, for enhanced, real time control of efficacy and safety: •The inducible MyD88/CD40 (iMC) activation switch that is incorporated into our GoCAR product candidates is designed to enhance CAR-based cell therapies by augmenting multiple mechanisms of action, including: 1) boosting effector cell proliferation; 2) enhancing functional persistence by resisting exhaustion and inhibitory signals found in the tumor microenvironment; and 3) stimulating the cancer patient's own immune system to intensify tumor killing. Unlike other CAR therapies that can behave unpredictably due to their autonomous activity, GoCAR antitumor effects are controlled through scheduled administration of rimiducid. In the event of severe side effects, GoCAR activity can be attenuated by extending the interval between rimiducid doses or suspending further rimiducid administration. •Our CaspaCIDe™ safety switch (also known as inducible Caspase-9, or iC9) is designed to be inactive unless the patient experiences a serious side effect (e.g., cytokine release syndrome, or CRS, neurologic toxicities or off-tumor / on-target toxicities). In that event, rimiducid or temsirolimus is administered to induce Caspase-9 and eliminate the cells, with the goal of attenuating the therapy and resolving the serious side effect. •Some of our product candidates are "dual-switch" GoCARs that are designed to provide a user-controlled system for managing proliferation, persistence and safety of tumor antigen-specific CAR cells by incorporating both our iMC and CaspaCIDe switches. We also have an active research effort to further develop and enhance these molecular switch approaches. 17 --------------------------------------------------------------------------------
By incorporating our novel switch technologies, we are developing product candidates with the potential to elicit positive clinical outcomes and ultimately change the treatment paradigm in various areas of cellular immunotherapy. Our most advanced programs are described below.
•BPX-601 is an autologous GoCAR-T product candidate containing our proprietary iMC activation switch, designed to treat solid tumors expressing prostate stem cell antigen, or PSCA. We believe iMC enhances T cell proliferation and persistence, enhances host immune activity, and modulates the tumor microenvironment to improve the potential to treat solid tumors compared to traditional CAR-T therapies. A Phase 1/2 clinical trial called BP-012 in patients with metastatic castration-resistant prostate cancer and metastatic pancreatic cancer expressing PSCA is ongoing. •BPX-603 is an autologous dual-switch GoCAR-T product candidate containing both the iMC activation and CaspaCIDe safety switches. BPX-603 is our first dual-switch GoCAR-T product candidate and is designed to target solid tumors that express the human epidermal growth factor receptor 2 antigen, or HER2. A Phase 1/2 clinical trial, called BPX603-201A, in patients with metastatic HER2+ solid tumors is ongoing. We have developed efficient and scalable processes to manufacture genetically modified T cells of high quality, which are currently being used to generate products for our clinical trials. We are leveraging this know how in combination with our proprietary cellular control technologies, resources, capabilities and expertise for the manufacture of CAR-T product candidates to create and develop first and best-in-class product candidates.
Impact of COVID-19
We have experienced limited impact to date, and do not anticipate experiencing a substantial impact in the future to our operations as a result of the ongoing COVID-19 pandemic. However, depending the duration and severity of the pandemic, we could experience impact in the future, including with respect to the operations of our manufacturing partners, clinical trial sites and regulatory agencies, all of which we are substantially dependent upon for our business. In particular, as we seek to pursue clinical trial enrollment and site activation for BPX-601 and BPX-603, it is possible that we may experience challenges in site enrollment due to factors related to the COVID-19 pandemic. For example, over the past three quarters, we experienced delays related to COVID-19 in patient screening and enrollment and site activation activities, delaying anticipated data presentations from our studies from 2022 to the first half of 2023. We are continuing to closely monitor the impact and potential future of the COVID-19 pandemic on our business. 18 --------------------------------------------------------------------------------
Results of Operations
The following table sets forth a summary of our statement of operations for the periods indicated: Three Months Ended Six Months Ended (in thousands) June 30, 2022 June 30, 2021 Change June 30, 2022 June 30, 2021 Change Revenues Supply agreement $ - $ 700$ (700) $ - $ 700$ (700) Revenues - 700 (700) - 700 (700) Operating expenses: Research and development 5,089 6,722 (1,633) 9,575 13,183
(3,608)
General and administrative 1,448 1,765 (317) 2,901 3,777
(876)
Total operating expenses 6,537 8,487 (1,950) 12,476 16,960 (4,484) Other operating expense: Loss on dispositions, net - - - - 464 (464) Loss from operations (6,537) (7,787)
1,250 (12,476) (16,724) 4,248
Other income (expense): Interest income 13 8 5 27 18 9 Interest expense - (1) 1 - (4) 4 Change in fair value of warrant derivative and private placement option liabilities 2,523 5,579 (3,056) 886 3,242 (2,356) Other expense - (1) 1 - (1) 1 Total other income 2,536 5,585 (3,049) 913 3,255 (2,342) Net loss$ (4,001) $ (2,202) $ (1,799) $ (11,563) $ (13,469) $ 1,906 Revenues The decrease in revenues for the three and six months endedJune 30, 2022 , compared to the same periods last year, was due to the inactivity of a supply agreement executed withTakeda Development Center Americas, Inc. (Takeda) in 2021. In the first quarter of 2021, we entered into a multi-year supply agreement for the supply of rimiducid for potential use in clinical trials of TAK-007 (CD19 CAR-NK cell therapy). The supply was fulfilled in the second quarter of 2021 generating revenue of$0.7 million . There was no rimiducid ordered or supplied during the first two quarters of 2022.
Research and Development Expenses (R&D)
The decrease in R&D expenses for the three and six months endedJune 30, 2022 , compared to the same periods last year, was primarily due to continued reduction of expenses related to rivo-cel activities and patient enrollment delays in our clinical trials. We discontinued active efforts to identify a partner for rivo-cel in late 2021. As a result, we have further decreased the budget on rivo-cel by limiting activities to maintaining regulatory compliance and long-term follow-up and monitoring of patients previously enrolled in rivo-cel clinical trials, leading to a reduction in clinical research and pharmaceutical development expenses of$1.0 million and$2.6 million for the three and six months endedJune 30, 2022 , respectively, compared to the same periods last year. Additionally, there have been delays in enrolling new patients for our clinical trials, which resulted in a reduction in clinical research costs of$1.1 million and$1.5 million for the three and six months endedJune 30, 2022 , respectively, compared to the same periods last year. These decreases were partially offset by an increase in salaries, benefits, travel, depreciation and share-based compensation related charges of$0.5 million for the three and six months endedJune 30, 2022 , respectively, as a result of increased R&D personnel hired during the second quarter of 2022.
General and Administrative Expenses (G&A)
The decrease in G&A expenses for the three months endedJune 30, 2022 , compared to the same period last year, was primarily due to the reduced share-based compensation expenses and depreciation expenses by$0.3 million . The decreased share-based 19 --------------------------------------------------------------------------------
compensation expenses is a result of expirations of stock options along with lower cost of new stock option grants driven by a lower average stock price.
The decrease in G&A expenses for the six months endedJune 30, 2022 , compared to the same period last year, was primarily due to the reduced personnel and share-based compensation expenses by$0.6 million , as a result of reduced headcount, along with the expirations of stock options and lower cost of new stock grants. Furthermore, our exit from theHouston and South San Francisco office facilities resulted in a combined reduction of$0.3 million in facility charges, depreciation expenses, and business property tax.
Loss on dispositions, net
For the three and six months endedJune 30, 2022 , we did not incur any gain or loss on dispositions. The loss recognized for the six months endedJune 30, 2021 was due to the lease termination of the South San Francisco office space. Upon the termination and exit of the office space, we disposed of substantially all of the assets and liabilities associated with the lease including a right-of-use asset of$0.6 million , leased equipment with net book value less than$0.1 million , and the related lease liability of$1.0 million . A loss on termination of$0.5 million was recognized for the six months endedJune 30, 2021 . Other Income (Expense) Other expense primarily consists of interest income and interest expense, offset by changes in fair value of our warrant derivative liability, which is remeasured at each reporting period. Due to the nature of the inputs in the model used to assess the fair value of the warrant derivative liability, the Company may experience significant fluctuations at each reporting period. These fluctuations may be due to a variety of factors, including changes in our stock price and changes in stock price volatility over the remaining term of the warrants. The decrease in other income for the three and six months endedJune 30, 2022 , compared to the same periods last year, was primarily due to decreased gains from the changes in fair value of our warrant liability of$3.1 million and$2.4 million , respectively. The smaller gains in the three and six months endedJune 30, 2022 , resulted from a less significant drop in the stock price and volatility, compared to the same periods last year.
Liquidity and Capital Resources
Going Concern and Management's Plans
The accompanying consolidated financial statements have been prepared on the basis that we will continue as a going concern, which contemplates realization of assets and the satisfaction of liabilities in the normal course of business. As ofJune 30, 2022 , we had cash and cash equivalents of$33.2 million , restricted cash of$1.5 million , and net cash used in operations of approximately$13.0 million for the six months endedJune 30, 2022 . Our cash resources are primarily consumed by operating activities and we expect negative cash flows from operations to continue for at least the next 12 months. We do not have any material contractual obligations or commitments as ofJune 30, 2022 . Our primary uses of capital are, and we expect will continue to be, compensation and related expenses, third-party clinical research and development services, clinical costs, legal and other regulatory expenses, and general overhead costs. Based on our current research and development plans and our timing expectations related to the progress of our programs, we believe there is substantial doubt that our cash and cash equivalents will be sufficient to fund our operating expenses and capital expenditure requirements through the next twelve months from the date the accompanying consolidated financial statements are issued. We plan to continue attempting to obtain future financing and/or engage in strategic transactions, but given the dynamic nature of our business, the COVID-19 pandemic and the macro-economic environment, including volatile equity markets, ongoing supply chain disruptions, inflation, and rising interest rates, we cannot predict with certainty the outcome of our actions to generate liquidity, including the availability of additional equity or debt financing, or whether such actions would generate the expected liquidity as currently planned. To continue as a going concern, we may postpone or eliminate some of our research and development programs and reduce our administrative costs. We may also intend to seek additional funding including, but not limited to any or all of the following potential sources: We have an effective shelf registration statement on Form S-3 for the offer and sale of up to$200.0 million of our securities, of which approximately$90.5 million remains available for future offerings. We may pursue additional funding through the sale of our securities in one or more offerings under this registration statement; however, we cannot assure you that we will be able to do so on favorable terms. Our ability to offer and sell our securities in a primary offering on our Form S-3 is currently limited by Instruction I.B.6 of Form S-3, commonly referred to as the 20 -------------------------------------------------------------------------------- "baby shelf" limitation. If 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 may include liquidation or other preferences that could adversely affect the rights of our existing stockholders. If we raise additional capital through the issuance of debt securities, we could incur fixed payment obligations and become subject to certain restrictive covenants, including limitations on our ability to incur additional debt and acquire or license intellectual property rights, and other operating restrictions that could restrict our ability to conduct our business. In addition, we may receive additional capital through the exercise of outstanding warrants to purchase our stock if our stock price sufficiently increases. As ofJune 30, 2022 , warrants to purchase 5,750,000 shares of our Series 1 preferred stock at an exercise price of$130.00 per share (equivalent to$13.00 per share of common stock), warrants to purchase 4,149,378 shares of our common stock at an exercise price of$6.50 per share and warrants to purchase 2,055,920 shares of our common stock at an exercise price of$1.69 per share were outstanding. The preferred stock warrants expire onAugust 21, 2026 , and the common warrants expire onNovember 3, 2025 , andDecember 7, 2028 , respectively. As a result of the COVID-19 pandemic, global inflation and the ongoing military conflict between Russian andUkraine , the global credit and financial markets have experienced extreme volatility, including diminished liquidity and credit availability, declines in consumer confidence, declines in economic growth, increases in unemployment rates and uncertainty about economic stability. Further deterioration in credit and financial markets and confidence in economic conditions could occur. If equity and credit markets deteriorate, it may make any necessary debt or equity financing more difficult to obtain, more costly and/or more dilutive. Moreover, if we do not obtain such additional funds, there could be substantial doubt about our ability to continue as a going concern and increased risk of insolvency, which could result in a total loss of investment to our stockholders and other security holders.
Cash Flows
Operating Activities
Net cash used in operating activities during the quarter endedJune 30, 2022 , was$13.0 million compared to$16.1 million for the same period last year. The primary operating activities during the six months endedJune 30, 2022 , were (1)$11.6 million of net losses, (2) a non-cash gain of$0.9 million recognized from the change in the fair value of the warrant derivative liability and (3)$1.7 million decrease from changes in operating assets and liabilities. These activities were partially offset by the$1.2 million share-based compensation expenses. Investing Activities Net cash used in investing activities during the quarter endedJune 30, 2022 , was less than$0.1 million compared to net cash provided by investing activities of less than$0.9 million for the same period last year. The cash used in investing activities during the six months endedJune 30, 2022 , was primarily for the purchase of computer equipment.
Financing Activities
There was no cash used in or provided by financing activities during the quarter endedJune 30, 2022 , compared to net cash used in financing activities of less than$0.1 million for the same period last year primarily due to payment on financing lease obligations.
As of
Critical Accounting Policies and Estimates
There have been no material changes to the Company's critical accounting policies and use of estimates from those disclosed in the Company's Form 10-K for the year endedDecember 31, 2021 . For a discussion of our critical accounting policies and use of estimates, refer to Management's Discussion and Analysis of Financial Condition and Results of Operations - Critical Accounting Policies and Significant Estimates in Part II, Item 7 of our Annual Report on Form 10-K for the year endedDecember 31, 2021 .
Recent Accounting Pronouncements
21 -------------------------------------------------------------------------------- Table of Contents See Note 1 - Organization, Basis of Presentation, and Summary of Significant Accounting Policies for discussion regarding recent accounting pronouncements.
Off-Balance Sheet Arrangements
During the periods presented, we did not have, and we do not currently have, any off-balance sheet arrangements, as defined in the rules and regulations of the Securities and Exchange Commissions.
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