APR-548

BOSTON, Aug. 11, 2022 (GLOBE NEWSWIRE) -- Aprea Therapeutics, Inc. (Nasdaq: APRE), a biopharmaceutical company focused on developing and commercializing novel synthetic lethality-based cancer therapeutics targeting DNA damage response (DDR) pathways today reported financial results for the three and six months ended June 30, 2022 and provided a business update. “This is an exciting time for Aprea as we advance our ATR program into clinical development this year, continue to progress our WEE1 program toward IND submission and leverage our unique discovery platform capabilities to build for future success,” said Oren Gilad, Ph.D., President and Chief Executive Officer of Aprea. “We believe our current cash resources will last through the end of 2023 and enable us to execute on our development plan to reach near term clinical milestones.” Second Quarter Financial Results Cash and cash equivalents: As of June 30, 2022, the Company had $39.1 million of cash and cash equivalents compared to $53.1 million of cash and cash equivalents as of December 31, 2021. The Company believes its cash and cash equivalents as of June 30, 2022 will be sufficient to meet its current projected operating requirements through the end of 2023.Research and Development (R&D) expenses: R&D expenses were $6.8 million for the quarter ended June 30, 2022, compared to $6.7 million for the comparable period in 2021. R&D expenses for the quarter ended June 30, 2022 primarily represented close out costs for (i) the Company’s pivotal Phase 3 clinical trial of eprenetapopt with azacitidine for the frontline treatment of TP53 mutant MDS, (ii) the Company’s Phase 2 post-transplant MDS/AML clinical trial, (iii) the Company’s Phase 1 AML trial, and (iv) the Company’s Phase 1/2 solid tumor trial and the Company’s Phase 1 dose-escalation trial of APR-548.General and Administrative (G&A) expenses: G&A expenses were $15.6 million for the quarter ended June 30, 2022, compared to $3.3 million for the comparable period in 2021. The increase in G&A expenses was primarily due to an increase in non-cash stock-based compensation expense resulting from the acceleration of vesting of all outstanding stock options and restricted stock units in connection with the acquisition of Atrin in May 2022.Acquired In-Process Research and Development (IPR&D) expenses: Acquired IPR&D expense was $76.0 million for the quarter ended June 30, 2022. Acquired IPR&D resulted from the Atrin Acquisition in May 2022 which was accounted for as an asset acquisition. The acquisition cost allocated to acquired IPR&D with no alternative future use was recorded as an expense as of the closing date.Net loss: Net loss was $98.3 million, or $4.34 per share for the quarter ended June 30, 2022, compared to a net loss of $10.3 million, or $0.48 per share for the quarter ended June 30, 2021. The increase in net loss was primarily attributable to the acquired in process research and development of $76.0 million associated with the Atrin acquisition. The Company had 23,401,846 shares of common stock outstanding as of June 30, 2022. Business Operations Update: On May 16, 2022 the Company completed the acquisition of Atrin Pharmaceuticals, Inc. (“Atrin”), a privately held biotechnology company focused on the discovery and development of novel therapeutics targeting proteins in the DDR, pathway in oncology through synthetic lethality. Following the Company’s Annual Meeting of Stockholders on July 28, 2022, Christian S. Schade transitioned to the role of Executive Chairman of the Board of Directors and Oren Gilad, Ph.D., assumed the role of Chief Executive Officer. DDR Programs ATRN-119 – ATRN-119 is an orally-bioavailable, highly potent and selective macrocyclic small molecule inhibitor of ATR, a protein with key roles in response to DNA damage. ATRN-119 has received FDA IND approval for a first-in-human clinical trial for cancer patients and this trial is expected to begin in the third quarter of 2022. ATRN-W1051 – ATRN-W1051 is an orally-bioavailable, highly potent and selective small molecule inhibitor of WEE1, a key regulator of multiple phases of the cell cycle. ATRN-W1051 is currently in preclinical development and we anticipate commencing IND-enabling studies in the second half of 2022. p53 Reactivator Programs Eprenetapopt - APR-246, or eprenetapopt, is a small molecule p53 reactivator that has been tested in clinical trials for solid tumors and for hematologic malignancies. A manuscript describing the results of a Phase 2 clinical trial of eprenetapopt with azacitidine after allogeneic stem-cell transplantation in TP53 mutant acute myeloid leukemia and myelodyspastic syndromes has recently been published online in the Journal of Clinical Oncology and a manuscript describing results of a Phase 1b clinical trial of eprenetapopt with pembrolizumab in advanced solid tumors has been accepted for publication in ESMO Open. We currently have no ongoing clinical trials of eprenetapopt. APR-548 - APR-548 is a second generation p53 reactivator that is a unique analog of eprenetapopt. APR-548 exhibits high oral bioavailability in preclinical testing and is being developed in an oral dosage form. We initiated a Phase 1 clinical trial testing APR-548 in relapsed/refractory MDS and AML. Enrollment in the first dosing cohort was completed. There are currently no patients receiving APR-548 in this trial and enrollment into the trial has been closed. About Aprea Therapeutics, Inc. Aprea Therapeutics, Inc. is a biopharmaceutical company headquartered in Boston, Massachusetts with research facilities in Doylestown, Pennsylvania, focused on developing and commercializing novel cancer therapeutics that target DNA damage response pathways. The Company’s lead program is ATRN-119, a Phase 1-ready small molecule ATR inhibitor being developed for solid tumor indications. For more information, please visit the company website at www.aprea.com. The Company may use, and intends to use, its investor relations website at https://ir.aprea.com/ as a means of disclosing material nonpublic information and for complying with its disclosure obligations under Regulation FD. Forward Looking Statement Certain information contained in this press release includes “forward-looking statements”, within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, related to our study analyses, clinical trials, regulatory submissions, and projected cash position. We may, in some cases use terms such as “future,” “predicts,” “believes,” “potential,” “continue,” “anticipates,” “estimates,” “expects,” “plans,” “intends,” “targeting,” “confidence,” “may,” “could,” “might,” “likely,” “will,” “should” or other words that convey uncertainty of the future events or outcomes to identify these forward-looking statements. Our forward-looking statements are based on current beliefs and expectations of our management team that involve risks, potential changes in circumstances, assumptions, and uncertainties. Any or all of the forward-looking statements may turn out to be wrong or be affected by inaccurate assumptions we might make or by known or unknown risks and uncertainties. These forward-looking statements are subject to risks and uncertainties including risks related to the success and timing of our clinical trials or other studies, risks associated with the coronavirus pandemic and the other risks set forth in our filings with the U.S. Securities and Exchange Commission. For all these reasons, actual results and developments could be materially different from those expressed in or implied by our forward-looking statements. You are cautioned not to place undue reliance on these forward-looking statements, which are made only as of the date of this press release. We undertake no obligation to publicly update such forward-looking statements to reflect subsequent events or circumstances. Source: Aprea Therapeutics, Inc. Corporate Contacts: Scott M. CoianteSr. Vice President and Chief Financial Officer617-463-9385 Gregory A. KorbelSr. Vice President and Chief Operating Officer617-463-9385 Aprea Therapeutics, Inc.Condensed Consolidated Balance Sheets(Unaudited) June 30, 2022 December 31, 2021Assets Current assets: Cash and cash equivalents$39,062,415 $53,076,052 Prepaid expenses and other current assets 1,400,837 3,508,358 Total current assets 40,463,252 56,584,410 Property and equipment, net 20,258 23,870 Right of use lease and other noncurrent assets 200,326 215,183 Total assets$40,683,836 $56,823,463 Liabilities and Stockholders’ Equity (Deficit) Current liabilities: Accounts payable$3,989,794 $1,773,032 Accrued expenses 3,505,287 5,352,996 Lease liability—current 189,116 190,471 Total current liabilities 7,684,197 7,316,499 Lease liability—noncurrent -- -- Total liabilities 7,684,197 7,316,499 Commitments and contingencies Preferred stock, par value $0.001; 2,949,630 and 0 shares issued and outstanding at June 30, 2022 and December 31, 2021, respectively 68,777,468 -- Stockholders’ equity (deficit): Common stock, par value $0.001; 23,401,846 and 21,859,413 shares issued and outstanding at June 30, 2022 and December 31, 2021, respectively. 23,401 21,859 Additional paid-in capital 261,795,121 240,978,439 Accumulated other comprehensive loss (10,266,806) (10,358,956) Accumulated deficit (287,329,545) (181,134,378) Total stockholders’ equity (35,777,829) 49,506,964 Total liabilities and stockholders’ equity (deficit)$40,683,836 $56,823,463 Aprea Therapeutics, Inc.Condensed Consolidated Statements of Operations and Comprehensive Loss(Unaudited) Three Months Ended June 30, Six Months Ended June 30, 2022 2021 2022 2021 Operating expenses: Research and development $6,811,609 $6,654,257 $10,901,186 $13,418,105 General and administrative 15,633,738 3,343,325 19,619,036 6,769,158 Acquired in-process research and development 76,020,184 -- 76,020,184 -- Total operating expenses 98,465,531 9,997,582 106,540,406 20,187,263 Other income (expense): Interest income (expense) 52,491 (588) 54,462 (1,645) Foreign currency (loss) gain 154,566 (252,843) 290,777 269,140 Total other income (expense) 207,057 (253,431) 345,239 267,495 Net loss $(98,258,474) $(10,251,013) $(106,195,167) $(19,919,768) Other comprehensive income (loss): Foreign currency translation 157,655 193,020 92,150 (209,830) Total comprehensive loss (98,100,819) (10,057,993) (106,103,017) (20,129,598) Net loss per share attributable to common stockholders, basic and diluted $(4.34) $(0.48) $(4.77) $(0.94) Weighted-average common shares outstanding, basic and diluted 22,661,835 21,186,827 22,283,783 21,186,827

BOSTON, Aug. 12, 2021 (GLOBE NEWSWIRE) -- Aprea Therapeutics, Inc. (Nasdaq: APRE), a biopharmaceutical company focused on developing and commercializing novel cancer therapeutics that reactivate the mutant tumor suppressor protein, p53, today reported financial results for the three and six months ended June 30, 2021 and provided a business update. Business Operations Update: The Company is conducting, supporting, and planning multiple clinical trials of eprenetapopt (APR-246) and APR-548. On August 4, 2021, the U.S. Food and Drug Administration (FDA) placed a partial clinical hold on the clinical trials of eprenetapopt in combination with azacitidine in our myeloid malignancy programs. There are approximately 20 patients currently receiving eprenetapopt in combination with azacitidine in our myeloid malignancy programs, which includes the MDS, AML and post-transplant maintenance trials, all of which have completed enrollment. Patients who are benefiting from treatment can continue to receive study treatment. As part of the partial clinical hold, no additional patients should be enrolled to these clinical trials until the partial clinical hold is resolved, The Company intends to work closely with the FDA to analyze the data, address the specific questions raised, and seek to resolve the partial clinical hold as soon as possible. On August 11, 2021, the FDA placed a clinical hold on the Company’s clinical trial evaluating eprenetapopt with acalabrutinib or with venetoclax and rituximab in lymphoid malignancies. There is one CLL patient currently on study treatment receiving eprenetapopt in combination with venetoclax and rituximab. This patient may continue to receive study treatment as long as the patient is deriving clinical benefit. No additional patients can be enrolled until the clinical hold is resolved. The Company intends to work closely with the FDA to address the specific questions raised, and seek to resolve the clinical hold as soon as possible. The Company’s current clinical trials are as follows: Second Quarter Financial Results About Aprea Therapeutics, Inc. Aprea Therapeutics, Inc. is a biopharmaceutical company headquartered in Boston, Massachusetts with research facilities in Stockholm, Sweden, focused on developing and commercializing novel cancer therapeutics that reactivate mutant tumor suppressor protein, p53. The Company’s lead product candidate is eprenetapopt (APR-246), a small molecule in clinical development for hematologic malignancies and solid tumors. A pivotal Phase 3 clinical trial of eprenetapopt and azacitidine for frontline treatment of TP53 mutant MDS has been completed and failed to meet the primary statistical endpoint of complete remission. Eprenetapopt is currently on clinical hold in myeloid and lymphoid malignancies. Eprenetapopt has received Breakthrough Therapy, Orphan Drug and Fast Track designations from the FDA for myelodysplastic syndromes (MDS), Orphan Drug and Fast Track designations from the FDA for acute myeloid leukemia (AML), and Orphan Drug designation from the European Commission for MDS and AML. APR-548, a next generation small molecule reactivator of mutant p53, is being developed for oral administration. For more information, please visit the company website at . The Company may use, and intends to use, its investor relations website at as a means of disclosing material nonpublic information and for complying with its disclosure obligations under Regulation FD. Forward-Looking Statement Certain information contained in this press release includes “forward-looking statements”, within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, related to our study analyses, clinical trials, regulatory submissions, and projected cash position. We may, in some cases use terms such as “future,” “predicts,” “believes,” “potential,” “continue,” “anticipates,” “estimates,” “expects,” “plans,” “intends,” “targeting,” “confidence,” “may,” “could,” “might,” “likely,” “will,” “should” or other words that convey uncertainty of the future events or outcomes to identify these forward-looking statements. Our forward-looking statements are based on current beliefs and expectations of our management team that involve risks, potential changes in circumstances, assumptions, and uncertainties. Any or all of the forward-looking statements may turn out to be wrong or be affected by inaccurate assumptions we might make or by known or unknown risks and uncertainties. These forward-looking statements are subject to risks and uncertainties including risks related to the success and timing of our clinical trials or other studies, risks associated with the coronavirus pandemic and the other risks set forth in our filings with the U.S. Securities and Exchange Commission. For all these reasons, actual results and developments could be materially different from those expressed in or implied by our forward-looking statements. You are cautioned not to place undue reliance on these forward-looking statements, which are made only as of the date of this press release. We undertake no obligation to publicly update such forward-looking statements to reflect subsequent events or circumstances. Source: Aprea Therapeutics, Inc. Corporate Contacts: Scott M. CoianteSr. Vice President and Chief Financial Officer617-463-9385 Gregory A. KorbelSr. Vice President and Chief Business Officer617-463-9385 Aprea Therapeutics, Inc.Condensed Consolidated Balance Sheets(Unaudited) Aprea Therapeutics, Inc.Condensed Consolidated Statements of Operations and Comprehensive Loss(Unaudited)