GlobeNewswire Inc | Nov 5, 2020 07:30AM EST

November 05, 2020

Preliminary data from first-in-human trial of menin inhibitor KO-539 accepted for oral presentation at ASH

Encouraging safety, tolerability and activity with KO-539 highlighted in ASH abstract

Preclinical data support expansion opportunity for tipifarnib plus PI3K inhibitor in HRAS- and/or PI3K-dependent tumors

$325.4 million in cash, cash equivalents and investments provide runway into 2023

Management to host webcast and conference call today at 8:00 a.m. ET

SAN DIEGO, Nov. 05, 2020 (GLOBE NEWSWIRE) -- Kura Oncology, Inc. (Nasdaq: KURA), a clinical-stage biopharmaceutical company committed to realizing the promise of precision medicines for the treatment of cancer, today reported third quarter 2020 financial results and provided a corporate update.

"Our team is focused on developing novel therapies for patients with cancer, said Troy Wilson, Ph.D., J.D., President and Chief Executive Officer ofKura Oncology. With our menin inhibitor, KO-539, we are encouraged by the early evidence of activity in our KOMET-001 Phase 1/2 clinical trial in patients with acute myeloid leukemia (AML), and look forward to presenting updated data from the trial in an oral presentation at the American Society of Hematology (ASH) Annual Meeting next month. With tipifarnib, in addition to conducting our ongoing AIM-HN registration-directed trial of tipifarnib in recurrent or metastatic HRAS mutant head and neck squamous cell carcinoma (HNSCC), we recently presented preclinical data that underscore the potential to combine tipifarnib with a PI3K inhibitor to treat between 25% and 50% of HNSCC patients, and look forward to initiating a combination trial of these two targeted therapies in mid-2021.

Corporate Update

-- Preliminary data for KO-539 accepted for oral presentation at ASH An abstract reporting preliminary data from KOMET-001, a first-in-human study of the Companys oral, potent and selective menin inhibitor, KO-539, has been accepted for oral presentation at ASH. The abstract, posted on the ASH website on November 4, 2020, highlighted encouraging safety and tolerability, as well as evidence of anti-leukemic activity as of the data cutoff of August 10, 2020. Kura plans to present a more mature dataset, including data from approximately 10 patients, in the oral presentation at ASH on December 5, 2020, followed by a virtual investor event featuring two of the trials investigators. -- KO-539 approaching recommended Phase 2 dose, expansion cohorts Kura remains focused on its goal of reaching a recommended Phase 2 dose for KO-539 as KOMET-001 continues in dose escalation. The Company continues to add clinical sites in anticipation of moving into the expansion cohorts, pending additional clinical data. The planned expansion cohorts include NPM1-mutant AML and KMT2A(MLL)-rearranged AML, selected patient populations where KO539 has the potential to demonstrate increased clinical benefit. Kura believes KO-539 represents a differentiated approach to target genetic subsets representing potentially 35% or more of the total adult AML population. In addition, Kura continues to explore options to potentially broaden the opportunity in the treatment of acute leukemias. -- Preclinical data support expansion opportunity for tipifarnib in HNSCC Last month, Kura reported new preclinical data showing compelling activity of its late-stage drug candidate, tipifarnib, when combined with a PI3K inhibitor in models of HRAS-dependent and/or PI3K dependent HNSCC. The data, presented at the EORTC-NCI-AACR Symposium on Molecular Targets and Cancer Therapeutics, support the Companys upcoming Phase 1/2 trial of tipifarnib in combination with a PI3K inhibitor in advanced or unresectable relapsed/refractory HNSCC harboring PIK3CA mutations or amplifications and/or HRAS overexpression. Kura believes that the total addressable population for tipifarnib may be between 25-50% of HNSCC. -- Leadership team enhanced with addition of Dr. Stephen Dale In August, Kura appointed Stephen Dale, M.D., as its new Chief Medical Officer. Dr. Dale joined the Company most recently from Kyowa Kirin, where he served as Senior Vice President and Global Head of Medical Science with a primary focus in oncology. Previously, he was Global Clinical Vice President and Clinical Head of Oncology at AstraZeneca, where he oversaw the development of Tagrisso (osimertinib) for metastatic EGFR-T790M mutation-positive non-small cell lung cancer.

Financial Results

-- Research and development expenses for the third quarter of 2020 were $16.6 million, compared to $12.5 million for the third quarter of 2019. -- General and administrative expenses for the third quarter of 2020 were $7.6 million, compared to $5.1 million for the third quarter of 2019. -- Net loss for the third quarter of 2020 was $23.8 million, compared to a net loss of $16.4 million for the third quarter of 2019. -- Cash, cash equivalents and short-term investments totaled $325.4 million as of September 30, 2020, compared with $236.9 million as of December 31, 2019. -- Management expects that current cash, cash equivalents and short-term investments will be sufficient to fund current operations into 2023.

Conference Call and Webcast

Kuras management will host a webcast and conference call today at 8:00 a.m. ET / 5:00 a.m. PT today, November 5, 2020, to discuss the financial results for the third quarter 2020 and provide a corporate update. The live call may be accessed by dialing (877) 516-3514 for domestic callers and +1 (281) 973-6129 for international callers and entering the conference code: 7456326. A live webcast of the call will be available from the Investors and Media section of the Companys website at www.kuraoncology.com, and will be archived there for 30 days.

About Kura Oncology

Kura Oncology is a clinical-stage biopharmaceutical company committed to realizing the promise of precision medicines for the treatment of cancer. The Companys pipeline consists of two wholly-owned, small-molecule drug candidates that target cancer signaling pathways where there is a strong scientific and clinical rationale to improve outcomes by identifying those patients most likely to benefit from treatment. Kuras most advanced drug candidate is tipifarnib, a potent, selective and orally bioavailable farnesyl transferase inhibitor currently in a registration-directed trial (AIM-HN) in patients with recurrent or metastatic HRAS mutant HNSCC. The Companys pipeline is also highlighted by KO-539, a potent and selective inhibitor of the menin-KMT2A(MLL) protein-protein interaction currently in a Phase 1/2A clinical trial (KOMET-001) in patients with relapsed/refractory AML. For additional information about Kura, please visit the Companys website at www.kuraoncology.com.

Forward-Looking Statements

This news release contains certain forward-looking statements that involve risks and uncertainties that could cause actual results to be materially different from historical results or from any future results expressed or implied by such forward-looking statements. Such forward-looking statements include statements regarding, among other things, the efficacy, safety and therapeutic potential of Kuras drug candidates, tipifarnib and KO-539, progress and expected timing of Kuras drug development programs and clinical trials and submission of regulatory filings, the presentation of data from clinical trials, plans regarding regulatory filings and future clinical trials, the regulatory approval path for tipifarnib, the strength of Kuras balance sheet and the adequacy of cash on hand. Factors that may cause actual results to differ materially include the risk that compounds that appeared promising in early research or clinical trials do not demonstrate safety and/or efficacy in later preclinical studies or clinical trials, the risk that Kura may not obtain approval to market its drug candidates, uncertainties associated with performing clinical trials, regulatory filings, applications and other interactions with regulatory bodies, the risks associated with reliance on third parties to successfully conduct clinical trials, the risks associated with reliance on outside financing to meet capital requirements, the risks associated with the COVID-19 global pandemic, and other risks associated with the process of discovering, developing and commercializing drugs that are safe and effective for use as human therapeutics, and in the endeavor of building a business around such drugs. You are urged to consider statements that include the words "may," "will," "would," "could," "should," "believes," "estimates," "projects," "promise," "potential," "expects," "plans," "anticipates," "intends," "continues," "designed," "goal," or the negative of those words or other comparable words to be uncertain and forward-looking. For a further list and description of the risks and uncertainties the Company faces, please refer to the Company's periodic and other filings with the Securities and Exchange Commission, which are available at www.sec.gov. Such forward-looking statements are current only as of the date they are made, and Kura assumes no obligation to update any forward-looking statements, whether as a result of new information, future events or otherwise.

KURA ONCOLOGY, INC. Statements of Operations Data (unaudited) (in thousands, except per share data) Three Months Ended Nine Months Ended September 30, September 30, 2020 2019 2020 2019 Operating Expenses:Research and $ 16,601 $ 12,540 $ 42,873 $ 34,362 developmentGeneral and 7,593 5,134 22,694 14,154 administrativeTotaloperating 24,194 17,674 65,567 48,516 expensesOther income, 425 1,282 2,101 3,241 netNet loss $ (23,769 ) $ (16,392 ) $ (63,466 ) $ (45,275 )Net loss pershare, basic $ (0.42 ) $ (0.36 ) $ (1.24 ) $ (1.11 )and dilutedWeightedaverage numberof shares usedin computing 56,405 45,241 51,169 40,805 net loss per share,basic anddiluted

KURA ONCOLOGY, INC. Balance Sheet Data (unaudited) (in thousands) September December 30, 31, 2020 2019 Cash, cash equivalents and short-term $ 325,413 $ 236,891 investmentsWorking capital 307,206 224,039 Total assets 339,567 241,972 Long-term liabilities 11,367 7,627 Accumulated deficit (276,343 ) (212,877 )Stockholders? equity 306,495 218,781

Contacts

Company:Pete De SpainVice President, Investor Relations &Corporate Communications(858) 500-8803pete@kuraoncology.com

Investors:Robert H. UhlManaging DirectorWestwicke ICR(858) 356-5932robert.uhl@westwicke.com

Media:Jason SparkManaging DirectorCanale Communications(619) 849-6005jason@canalecomm.com