ESSA Pharma Provides Corporate Update and Reports Financial Results for Fiscal Fourth Quarter and Year Ended September 30, 2024

Company has initiated a process to explore and review strategic options focused on maximizing shareholder value

SOUTH SAN FRANCISCO, California and VANCOUVER, Canada, Dec. 17, 2024 /PRNewswire/ - ESSA Pharma Inc. ("ESSA," or the "Company") (NASDAQ: EPIX), a clinical-stage pharmaceutical company that, prior to the discontinuation of its clinical trials and preclinical and other development programs, has been focused on developing novel therapies for the treatment of prostate cancer, today provided a corporate update and reported financial results for the fourth quarter and fiscal year ended September 30, 2024.

"We recently made the difficult decision to terminate the clinical development of masofaniten, and withdraw the related IND and CTAs, based on an interim analysis of the data from the Phase 2 combination study, concluding that masofaniten combined with enzalutamide was unlikely to meet its primary endpoint," said David Parkinson, MD, President and CEO of ESSA. "We are currently evaluating and reviewing our strategic options focused on maximizing shareholder value and look forward to providing further updates in the near future."

Fourth Quarter Fiscal 2024 and Recent Updates

    --  In October 2024, ESSA made the decision to terminate all clinical trials
        evaluating masofaniten and to withdraw the related IND and CTAs. The
        decision was based on the outcome of a futility analysis conducted as
        part of a protocol-specified interim review of the Phase 2 clinical
        trial evaluating masofaniten combined with enzalutamide versus
        enzalutamide monotherapy in patients with metastatic
        castration-resistant prostate cancer ("mCRPC") naïve to
        second-generation antiandrogens.


        --  The interim analysis, which reviewed the Phase 2 safety, PK and
            efficacy data, showed that the study enzalutamide monotherapy
            control arm (which is the standard of care for this patient
            population) had a much higher rate of PSA90 response than was
            expected based upon historical data. In addition, there was no clear
            efficacy benefit seen with the combination of masofaniten plus
            enzalutamide compared to enzalutamide single agent. A futility
            analysis determined a low likelihood of meeting the prespecified
            primary endpoint of the study. It was therefore concluded that the
            study was unlikely to achieve its primary endpoint.


        --  The combination of masofaniten plus enzalutamide was well-tolerated
            with no new safety signals and a safety profile similar to that seen
            in Phase 1 monotherapy and combination studies.


    --  ESSA has initiated a comprehensive process to explore and review a range
        of strategic options focused on maximizing shareholder value, which may
        include, but are not limited to a merger, amalgamation, take-over,
        business combination, asset sale or acquisition, shareholder
        distribution, wind-up, liquidation and dissolution, seek new products
        for development, or other strategic direction. The process is expected
        to involve headcount and other cost reductions.
    --  On December 12, 2024, ESSA provided a notice of termination of the
        License Agreement to the Licensors, notifying the Licensors that it
        terminated the License Agreement in accordance with its terms, effective
        as of December 12, 2024.

Summary Financial Results
(Amounts expressed in U.S. dollars)

    --  Net Loss. ESSA recorded a net loss of $28.5 million for the year ended
        September 30, 2024 compared to a net loss of $26.6 million for the year
        ended September 30, 2023. For the year ended September 30, 2024, this
        included non-cash share-based payments of $6.5 million compared to $5.3
        million for the prior year, recognized for stock options granted and
        vesting. Net loss for the fourth quarter ended September 30, 2024 was
        $6.4 million compared to a net loss of $5.5 million for the fourth
        quarter ended September 30, 2023.
    --  Research and Development ("R&D") expenditures. R&D expenditures for the
        year ended September 30, 2024 were $21.2 million compared to $21.3
        million for the year ended September 30, 2023, and include non-cash
        costs related to share-based payments ($1.8 million for the year ended
        2024 compared to $2.7 million for the year ended 2023). R&D expenditures
        for the fourth quarter ended September 30, 2024 were $4.2 million
        compared to $5.2 million for the fourth quarter ended September 30, 2023
        due to lower expenditures on preclinical and manufacturing.
    --  General and Administration ("G&A") expenditures. G&A expenditures for
        the year ended September 30, 2024 were $13.2 million compared to $10.8
        million for the year ended September 30, 2023, and include non-cash
        costs related to share-based payments of $4.7 million for the year ended
        2024 compared to $2.6 million for the year ended 2023. G&A expenditures
        for the fourth quarter ended September 30, 2024 were $3.5 million
        compared to $1.9 million for the fourth quarter ended September 30,
        2023. The increase for the fourth quarter was primarily due to increased
        share-based payments and higher salary figures.

Liquidity and Outstanding Share Capital

    --  As of September 30, 2024, the Company had available cash reserves and
        short-term investments of $126.8 million and net working capital of
        $124.3 million. The Company has no long-term debt facilities.
    --  As of September 30, 2024, the Company had 44,388,550 common shares
        issued and outstanding, and there were 2,920,000 common shares issuable
        upon the exercise of prefunded warrants at an exercise price of $0.0001.

About ESSA Pharma Inc.

ESSA is a clinical-stage pharmaceutical company that was previously focused on developing novel and proprietary therapies for the treatment of patients with prostate cancer. For more information, please visit www.essapharma.com.

Forward-Looking Statement Disclaimer

This release contains certain information which, as presented, constitutes "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995 and "forward-looking information" within the meaning of applicable Canadian securities laws (collectively, "forward-looking statements"). Forward-looking statements include, but are not limited to, statements that relate to future events and often addresses expected future business and financial performance, containing words such as "anticipate", "believe", "plan", "estimate", "expect", and "intend", statements that an action or event "may", "might", "could", "should", or "will" be taken or occur, or other similar expressions and includes, but is not limited to, statements regarding the termination of the Company's clinical studies of masofaniten, the Company's financial resources, the evaluation of the Company's strategic alternatives, the primary and PSA-related endpoints of the Phase 2 study and other statements surrounding the Company's evaluation of masofaniten.

Forward-looking statements are subject to various known and unknown risks and uncertainties, many of which are beyond the ability of ESSA to control or predict, and which may cause ESSA's actual results, performance or achievements to be materially different from those expressed or implied thereby. Such statements reflect ESSA's current views with respect to future events, are subject to risks and uncertainties and are necessarily based upon a number of estimates and assumptions that, while considered reasonable by ESSA as of the date of such statements, are inherently subject to significant medical, scientific, business, economic, competitive, political and social uncertainties and contingencies. In making forward looking statements, ESSA may make various material assumptions, including but not limited to (i) the accuracy of ESSA's financial projections; (ii) obtaining positive results of clinical trials; (iii) obtaining necessary regulatory approvals; (iv) that one or more strategic options may be available to the Company at reasonably acceptable terms; and (v) general business, market and economic conditions.

Forward-looking statements are developed based on assumptions about such risks, uncertainties and other factors set out herein and in ESSA's Annual Report on Form 10-K dated December [10], 2024, under the heading "Risk Factors", a copy of which is available on ESSA's profile on EDGAR at www.sec.gov and on SEDAR+ at www.sedarplus.ca, and as otherwise disclosed from time to time on ESSA's EDGAR and SEDAR+ profiles. Forward-looking statements are made based on management's beliefs, estimates and opinions on the date that statements are made and ESSA undertakes no obligation to update forward-looking statements if these beliefs, estimates and opinions or other circumstances should change, except as may be required by applicable United States and Canadian securities laws. Readers are cautioned against attributing undue certainty to forward-looking statements.

Contacts
ESSA Pharma Inc.
David Wood, Chief Financial Officer
778.331.0962
dwood@essapharma.com

Investors and Media
Argot Partners
212.600.1902
essa@argotpartners.com

ESSA PHARMA INC.
CONSOLIDATED BALANCE SHEETS
Amounts in thousands of United States dollars


                                                 September September
                                                       30,        30,
                                                      2024       2023





     Cash                                        $103,710    $33,702



     Prepaids and other assets                     24,402    115,420






     Total assets                                $128,112   $149,122





     Current liabilities                            3,301      3,495



     Long-term lease liability                        205



     Shareholders' deficiency                     124,606    145,627






     Total liabilities and shareholders' equity  $128,112   $149,122

ESSA PHARMA INC.
CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS
Amounts in thousands of United States dollars, except share and per share data


                                                     Three months         Three months          Year ended       Year ended
                                                            ended             ended
                                                                                             September 30,    September 30,
                                                        September
                                                              30,          September 30,             2024              2023
                                                             2024            2023





              
                OPERATING EXPENSES



                  Research and development                       $4,188         $5,226     $21,207           $21,323



                  Financing costs                                                   1                            7



                  General and administration                      3,507          1,922      13,214            10,812






              Total operating expenses                           (7,695)        (7,149)   (34,421)         (32,142)






                  Interest and other items                        1,339          1,668       5,878             5,560






              Net loss before taxes                              (6,356)        (5,481)   (28,543)         (26,582)



              Income tax expense (recovery)                                                                  (2)






              Net loss for the period                           $(6,356)       $(5,483)  $(28,543)        $(26,584)





              
                OTHER COMPREHENSIVE LOSS





              Unrealized gain (loss) on short-                       37              2          57                15
    term investments






              Loss and comprehensive loss for                   $(6,319)       $(5,479)  $(28,486)        $(26,569)
    the period





              Basic and diluted loss per                         $(0.14)     $(0.12)       $(0.64)          $(0.60)
    common share





              Weighted average number of                     44,366,126     44,092,374  44,277,050        44,089,557


              common shares outstanding

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