Initiation of the Phase 3 ENABLE-2 pivotal trial of ELVN-001 expected in the second half of 2026
Key data readout, regulatory interactions, and operational catalysts throughout 2026
Strong balance sheet with $463 million in cash, cash equivalents and marketable securities, which is expected to provide cash runway into the first half of 2029
BOULDER, Colo., March 3, 2026 /PRNewswire/ -- Enliven Therapeutics, Inc. (Enliven or the Company) (NASDAQ:ELVN), a clinical-stage biopharmaceutical company focused on the discovery and development of small molecule therapeutics, today reported financial results for the fourth quarter and full year ended December 31, 2025, and provided a business update, including highlights of positive initial data from the ongoing Phase 1b ENABLE clinical trial evaluating ELVN-001 in patients with chronic myeloid leukemia (CML) that is relapsed, refractory or intolerant to available tyrosine kinase inhibitors (TKIs) (NCT05304377).
"2025 was a year of meaningful progress as we advanced ELVN-001 toward a Phase 3 pivotal clinical trial," said Rick Fair, Chief Executive Officer of Enliven. "As we move into 2026, we're entering one of the most active and transformative periods in Enliven's history, with an important data readout, key regulatory interactions, and the planned initiation of our ENABLE-2 pivotal trial. We are focused on execution to demonstrate ELVN-001's potential as a best-in-class ATP-competitive inhibitor for people living with CML."
ELVN-001 Program Highlights
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 CML.
The Company announced positive initial Phase 1b data for ELVN-001 in patients with CML.
As of the cutoff date of December 22, 2025, 60 patients were enrolled in the initial cohorts of the Phase 1b trial. Patients were first enrolled in the 80 mg once daily (QD) cohort. Subsequent patients were randomized to either 60 mg QD or 120 mg QD.
Patients enrolled were heavily pretreated, consistent with patients from previously reported datasets. In these 60 patients:
53% of patients received four or more unique prior TKIs.
67% of patients received prior asciminib and 32% received prior ponatinib.
Despite the heavily pretreated patient population, the efficacy data below, which shows MMR rates by 24 weeks, highlights that ELVN-001 continues to demonstrate the profile of a best-in-class ATP-competitive inhibitor.
Dose (number of patients)
80 mg QD (n=19)
60/120 mg QD (n=41)
Cumulative Major Molecular Response (MMR)
47% (n=19)
69% (n=26)
Achieved MMR
38% (n=16)
53% (n=17)
Maintained MMR
100% (n=3)
100% (n=9)
Deep Molecular Response (DMR)
16% (n=19)
35% (n=26)
Upcoming ELVN-001 Milestones
Mid-year presentation of additional Phase 1 data from the ongoing ENABLE trial
Regulatory alignment with the FDA on dose selection and Phase 3 trial design
Initiation of ENABLE-2, the Phase 3 clinical trial of ELVN-001, in the second half of 2026
Additional Company Updates
The strength of the ELVN-001 data to-date and the Company's clear path forward to the initiation of its planned Phase 3 pivotal trial and potential commercialization have driven recent leadership and Board changes, including the appointment of Rick Fair as Chief Executive Officer in December 2025 and the addition of Scott Garland to the Board in January 2026.
These changes underscore Enliven's commitment to aligning experienced leadership and governance with its transition into late-stage development and future commercialization.
Fourth Quarter and Full Year 2025 Financial Results
Cash Position: As of December 31, 2025, the Company had cash, cash equivalents and marketable securities totaling $462.6 million, which is expected to provide cash runway into the first half of 2029.
Research and development (R&D) expenses: R&D expenses were $21.2 million for the fourth quarter of 2025, compared to $20.7 million for the fourth quarter of 2024. R&D expenses were $85.9 million for the full year 2025, compared to $80.8 million for the full year 2024.
General and administrative (G&A) expenses: G&A expenses for the fourth quarter of 2025 were $13.0 million, compared to $6.2 million for the fourth quarter of 2024, mainly driven by stock-based compensation related to the CEO transition announced in December 2025. G&A expenses were $33.8 million for the full year 2025, compared to $23.8 million for the full year 2024.
Net Loss: Enliven reported a net loss of $29.7 million for the fourth quarter of 2025, compared to a net loss of $23.2 million for the fourth quarter of 2024. Total net loss for the full year 2025 was $103.7 million, compared to $89.0 million for the full year 2024.
About Enliven Therapeutics
Enliven is a clinical-stage biopharmaceutical company focused on the discovery and development of small molecule therapeutics to help people not only live longer, but live better. Enliven aims to address existing and emerging unmet needs with a precision medicine approach that improves survival and enhances overall well-being. Enliven's discovery process combines deep insights into clinically validated biological targets and differentiated chemistry to design potentially first-in-class or best-in-class therapies. Enliven is based in Boulder, Colorado. To learn more, visit www.enliventherapeutics.com and connect with us on LinkedIn and X.
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 that involve substantial risks and uncertainties. These statements may discuss goals, intentions and expectations as to future plans, trends, events, results of operations and 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, ...
