Exhibit 99.1

Enliven Therapeutics Reports Second Quarter Financial Results and Provides a Business Update

Dosed the first patient in the Phase 1b arm of the clinical trial evaluating ELVN-001 in patients with CML that is relapsed, refractory or intolerant to available TKIs

Dosed the first patient in the Phase 1a clinical trial evaluating ELVN-002 in combination with trastuzumab +/- chemotherapeutic agents in HER2+ MBC and CRC

Strong balance sheet with $312 million in cash, cash equivalents and marketable securities, which is expected to provide cash runway into late 2026

BOULDER, Colo., Aug. 13, 2024 (GLOBE NEWSWIRE) – Enliven Therapeutics, Inc. (Enliven or the Company) (Nasdaq: ELVN), a clinical-stage precision oncology company focused on the discovery and development of next-generation small molecule kinase inhibitors, today reported financial results for the second quarter ended June 30, 2024, and provided a business update, including highlights of pipeline progress.

“The second quarter of 2024 marked another period of significant progress for both of our parallel lead programs, ELVN-001 and ELVN-002,” said Sam Kintz, MBA, Enliven’s Co-founder and Chief Executive Officer. “We began dosing patients in the Phase 1b arm for ELVN-001 and in two combination trials for ELVN-002. Additionally, an abstract updating the data from the ongoing Phase 1a trial for ELVN-001 has been accepted for presentation at the upcoming ESH-iCMLf Conference in September.”

Pipeline Updates

ELVN-001 is a potent, highly selective, potentially best-in-class small molecule kinase inhibitor designed to specifically target the BCR-ABL gene fusion, the oncogenic driver for patients with chronic myeloid leukemia (CML).

ELVN-002 is a potent, highly selective, central nervous system penetrant and irreversible HER2 inhibitor with activity against wild type HER2 and various HER2 mutations.

Second Quarter 2024 Financial Results

About Enliven Therapeutics

Enliven Therapeutics is a clinical-stage biopharmaceutical company focused on the discovery and development of small molecule inhibitors to help people with cancer not only live longer, but live better. Enliven aims to address existing and emerging unmet needs with a precision oncology approach that improves survival and enhances overall well-being. Enliven’s discovery process combines deep insights in clinically validated biological targets and differentiated chemistry to design potentially first-in-class or best-in-class therapies. Enliven is based in Boulder, Colorado.

Forward Looking Statements

This press release contains forward-looking statements (including within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended, and Section 27A of the Securities Act of 1933, as amended) concerning Enliven and other matters. These statements may discuss goals, intentions and expectations as to future plans, trends, events, results of operations or financial condition, or otherwise, based on current beliefs of the management of Enliven, as well as assumptions made by, and information currently available to, management of Enliven. Forward-looking statements generally include statements that are predictive in nature and depend upon or refer to future events or conditions, and include words such as “may,” “will,” “should,” “would,” “expect,” “anticipate,” “plan,” “likely,” “believe,” “estimate,”

“project,” “intend,” and other similar expressions or the negative or plural of these words, or other similar expressions that are predictions or indicate future events or prospects, although not all forward-looking statements contain these words. Statements that are not historical facts are forward-looking statements. Forward-looking statements in this press release include, but are not limited to, statements regarding the potential of, and plans and expectations regarding Enliven’s programs, including ELVN-001 and ELVN-002; Enliven’s pipeline of product candidates; expected milestones for ELVN-001 and ELVN-002, including the expected timing of data from the clinical trials of ELVN-001 and ELVN-002 and the number of patients included in such data; statements relating to Enliven’s expected cash runway; and statements by Enliven’s Co-founder and Chief Executive Officer. Forward-looking statements are based on current beliefs and assumptions that are subject to risks and uncertainties and are not guarantees of future performance. Actual results could differ materially from those contained in any forward-looking statement as a result of various risks and uncertainties, including, without limitation: the limited operating history of Enliven; the ability to advance product candidates through preclinical and clinical development; the ability to obtain regulatory approval for, and ultimately commercialize, product candidates; the outcome of preclinical testing and early clinical trials for product candidates and the potential that the outcome of preclinical testing and early clinical trials may not be predictive of the success of later clinical trials; Enliven’s limited resources; the risk of failing to demonstrate safety and efficacy of product candidates; Enliven’s limited experience as a company in designing and conducting clinical trials; the potential for interim, topline and preliminary data from Enliven’s preclinical studies and clinical trials to materially change from the final data; potential delays or difficulties in the enrollment or maintenance of patients in clinical trials; developments relating to Enliven’s competitors and its industry, including competing product candidates and therapies; the decision to develop or seek strategic collaborations to develop Enliven’s current or future product candidates in combination with other therapies and the cost of combination therapies; the ability to attract, hire, and retain highly skilled executive officers and employees; the ability of Enliven to protect its intellectual property and proprietary technologies; the scope of any patent protection Enliven obtains or the loss of any of Enliven’s patent protection; reliance on third parties, including contract manufacturing organizations, contract research organizations and strategic partners; general market or macroeconomic conditions; Enliven’s ability to obtain additional capital to fund Enliven’s general corporate activities and to fund Enliven’s research and development; and other risks and uncertainties, including those more fully described in Enliven’s filings with the Securities and Exchange Commission (SEC), which may be found in the section titled “Risk Factors” in Enliven’s Annual and Quarterly Reports on Form 10-K and 10-Q filed with the SEC and in Enliven’s future reports to be filed with the SEC. Except as required by applicable law, Enliven undertakes no obligation to revise or update any forward-looking statement, or to make any other forward-looking statements, whether as a result of new information, future events or otherwise.

Contact

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Media

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Enliven Therapeutics, Inc.

Selected Condensed Consolidated Financial Information

(in thousands, except per share data)

(unaudited)