Enrollment commenced in the ACESOT-1051 Phase 1 trial evaluating APR-1051 – no myelosuppression observed in the first of eight planned cohorts at sub-therapeutic dose $28.7 million in cash and cash equivalents as of June 30, 2024 with cash runway extended into Q4 2025 DOYLESTOWN, Pa., Aug. 12, 2024 (GLOBE NEWSWIRE) -- Aprea Therapeutics, Inc. (Nasdaq: APRE) (“Aprea”, or the “Company”), a clinical-stage biopharmaceutical company focused on precision oncology through synthetic lethality, today reported financ ...

DOYLESTOWN, Pa., June 21, 2024 (GLOBE NEWSWIRE) -- Aprea Therapeutics, Inc. (NASDAQ:APRE) ("Aprea", or the "Company"), a clinical-stage biopharmaceutical company focused on precision oncology through synthetic lethality, today announced that it will host a virtual KOL event to discuss APR-1051, a highly selective and potentially best-in-class oral WEE1 inhibitor, on Monday, June 24, 2024 at 9:00 AM ET. To register, click here. The webinar will feature Joseph Vacca, PhD, Medicinal Chemistry Expert and Consul ...

APR-1051 is a highly selective and potentially best-in-class oral WEE1 inhibitor Phase 1 ACESOT-1051 clinical trial is evaluating APR-1051 as monotherapy treatment in patients with significant unmet medical need Dosing of the first patient in the ACESOT-1051 study represents a key advancement in Aprea's clinical pipeline DOYLESTOWN, Pa., June 17, 2024 (GLOBE NEWSWIRE) -- Aprea Therapeutics, Inc. (NASDAQ:APRE) ("Aprea", or the "Company"), a clinical-stage biopharmaceutical company focused on precision oncolo ...

Core Insights - ATRN-119 is the first and only macrocyclic ATR inhibitor in clinical trials, showing best-in-class potential [1] - The ongoing ABOYA-119 clinical trial is on track to complete dose escalation and potentially generate initial human efficacy data in the second half of 2024 [1][4] - Safety Review Committee has approved the commencement of dosing at 800 mg once daily for Cohort 6, following positive safety and pharmacokinetic data from Cohort 5 [2][3] Clinical Trial Progress - A total of 17 patients have been enrolled across the first five cohorts with doses ranging from 50 mg to 550 mg once daily [3] - Preliminary signs of clinical benefit have been observed, with two patients achieving stable disease at different dose levels [3] - The Phase 1 dose escalation is expected to be completed by the fourth quarter of 2024, with the recommended Phase 2 dose anticipated in the first quarter of 2025 [4] Drug Characteristics - ATRN-119 is designed for patients with mutations in DNA damage response (DDR) pathways, addressing a high unmet medical need in oncology [4] - The drug has demonstrated a differentiated selectivity and toxicity profile compared to other ATR inhibitors [2][4] - Pharmacokinetic data indicate that systemic exposure increases with each dose level, with therapeutic plasma concentrations observed at doses of 550 mg and above [2][5]

Exhibit 99.1 Aprea Therapeutics Reports First quarter 2024 Financial Results and Provides a Business Update U.S. FDA cleared IND for APR-1051, a highly selective and potentially best-in-class oral WEE1 inhibitor; Company plans to initiate Phase 1 ACESOT-1051 clinical trial in June 2024 First-in-class macrocyclic ATR inhibitor, ATRN-119, on track to complete dose escalation in ABOYA-119 clinical trial and potentially generate initial human ef icacy data in 2H 2024 Company had four poster presentations at the ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-39069 Aprea Therapeutics, Inc. (Exact name of registrant as specified in its charter) Delaware 84-2246769 (State or other ...

DOYLESTOWN, Pa., May 02, 2024 (GLOBE NEWSWIRE) -- Aprea Therapeutics, Inc. (NASDAQ:APRE) ("Aprea", or the "Company"), a clinical-stage biopharmaceutical company focused on precision oncology through synthetic lethality, today announced the appointment of Nadeem Q. Mirza, M.D., M.P.H. as Chief Medical Officer (CMO) of the Company, effective May 1, 2024. Dr. Mirza has been an integral part of the Company's senior team as a consultant since February, 2023 and will now assume a more central role in leading the ...

Pre-clinical findings underscore the potential of APR-1051, a next-generation WEE1 kinase inhibitor, to be a well-tolerated and effective treatment for Cyclin E-overexpressing cancers IND for APR-1051 has been cleared; details on planned Phase 1 first in human trial (ACESOT-1051) presented ATRN-119, a novel macrocyclic ATR inhibitor, continues to appear safe and well tolerated with no Dose Limiting Toxicities observed in ongoing Phase 1/2a study; preliminary signs of clinical benefit reported; enrollment in ...

Exhibit 99.1 Aprea Therapeutics Reports Fourth Quarter and Full Year 2023 Financial Results and Provides a Business Update First-in-class macrocyclic ATR inhibitor, ATRN-119, on track to complete dose escalation and potentially generate human ef icacy data in H2 2024 U.S. FDA cleared IND for APR-1051, a highly selective and potentially best-in-class oral WEE1 inhibitor; Company plans to initiate Phase 1 ACESOT-1051 clinical trial in H1 2024. $21.6 million in cash and cash equivalents as of December 31, 2023 ...

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