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Form 8-K

sec.gov

8-K — Enliven Therapeutics, Inc.

Accession: 0001193125-26-266731

Filed: 2026-06-11

Period: 2026-06-11

CIK: 0001672619

SIC: 2834 (PHARMACEUTICAL PREPARATIONS)

Item: Regulation FD Disclosure

Item: Other Events

Item: Financial Statements and Exhibits

Documents

8-K — d202685d8k.htm (Primary)

EX-99.1 (d202685dex991.htm)

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): June 11, 2026

Enliven Therapeutics, Inc.

(Exact name of registrant as specified in its charter)

Delaware

001-39247

81-1523849

(State or other jurisdiction

of incorporation)

(Commission

File Number)

(IRS Employer

Identification No.)

205 Park Road

Burlingame, California

94010

(Address of principal executive offices)

(Zip Code)

Registrant’s telephone number, including area code: 650-547-5814

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading

Symbol(s)

Name of each exchange

on which registered

Common Stock, par value $0.001 per share

ELVN

The Nasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 7.01

Regulation FD Disclosure.

On June 11, 2026, Enliven Therapeutics, Inc. (the “Company”) issued a press release announcing updated positive data from the Phase 1 ENABLE clinical trial evaluating ELVN-001 in patients with chronic myeloid leukemia (“CML”). The press release is attached hereto as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.

All of the information furnished in this Item 7.01 (including Exhibit 99.1) shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Item 8.01

Other Events.

On June 11, 2026, the Company announced updated positive data from the Phase 1 ENABLE clinical trial evaluating ELVN-001 in patients with CML and key outcomes from the Company’s End-of-Phase 1 meeting with the U.S. Food and Drug Administration (the “FDA”).

ELVN-001 Updated Data Highlights

ENABLE Has Enrolled a Heavily Pretreated Patient Population

As of the cutoff date of March 10, 2026, 161 patients were enrolled in the ongoing Phase 1 trial across dose levels ranging from 10-240 mg daily.

Most patients (76%) remain on study with a median treatment duration of 35 weeks.

Patients enrolled were heavily pretreated, with 70% having received three or more prior unique tyrosine kinase inhibitors (“TKIs”) and 23% having received five or more unique TKIs.

62% of patients received prior asciminib, and these patients were more heavily pretreated than the overall trial population: 93% received three or more prior unique TKIs, and 34% received five or more unique TKIs.

8% of patients enrolled with mutations associated with resistance to allosteric inhibitors, increasing from 4% in Phase 1a to 11% in Phase 1b.

Encouraging ELVN-001 Efficacy Data by 24 Weeks

Of the 90 patients enrolled in the Phase 1b, 78 had typical BCR::ABL1 transcripts and had at least one post-baseline transcript; 69 patients were evaluable for major molecular response (MMR) by 24 weeks.

Additionally, of the 49 patients enrolled in the 80 mg once daily (QD) Phase 1b cohort, 37 had typical BCR::ABL1 transcripts and had at least one post-baseline transcript; 28 patients were evaluable for MMR by 24 weeks.

Cohort (n = evaluable for MMR)

Phase 1b

Phase 1b 80 mg QD Cohort

Overall MMR

54% (n=69)

61% (n=28)

Achieved MMR

40% (n=53)

48% (n=21)

Maintained MMR

100% (n=16)

100% (n=7)

Deep Molecular Response (DMR) achievement rates were also encouraging.

By 24 weeks, DMR was achieved in 22% of patients in the overall Phase 1b and 30% of patients in the 80 mg QD Phase 1b cohort.

Response rates were higher in less heavily pretreated patients, and prior asciminib exposure did not meaningfully impact response rates.

Achieved Response Rates by 24-weeks (n = evaluable for MMR)

Prior number of unique TKIs:

Phase 1b (n=69)

Phase 1b post-asciminib (n=43)

1-2

55% (n=27)

60% (n=6)

3-4

32% (n=26)

28% (n=22)

5+

29% (n=16)

29% (n=15)

ELVN-001’s Safety Profile Consistent with High Selectivity for ABL1

ELVN-001 was generally well-tolerated, consistent with its high selectivity.

6% of patients discontinued due to adverse events.

The majority of treatment-emergent adverse events (TEAEs) were Grade 1 or 2.

Grade ≥3 TEAEs were reported in 53/158 (34%) patients overall; with thrombocytopenia (6%), neutropenia (6%) and lipase elevation (6%) as the most common.

At the biologically optimal dose of 80 mg QD (n=62), Grade ≥3 TEAEs were reported in 15/62 (24%) patients, with thrombocytopenia (6%) being the only Grade ≥3 TEAE reported in >5% of patients.

Key Outcomes from the End-of-Phase 1 Meeting with the FDA

80 mg QD selected as the recommended dose for Phase 3 ENABLE-2 trial.

ENABLE-2 is expected to enroll patients with CML previously treated with one or more TKIs, and to be randomized to receive either ELVN-001 or physician’s choice of an ATP-competitive TKI.

Additional details of the Phase 3 trial design are expected to be finalized following further discussions with the FDA, including at a planned End-of-Phase 2 meeting anticipated in the third quarter of 2026.

Cautionary Note Regarding Forward-Looking Statements

This Current Report on Form 8-K 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 the Company 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 the Company, as well as assumptions made by, and information currently available to, management of the Company. 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 Current Report on Form 8-K include, but are not limited to: statements regarding the potential profile, activity, selectivity, safety, tolerability, efficacy, differentiated attributes, therapeutic benefit and potential best-in-class or complementary profile of ELVN-001 to allosteric inhibitors; the interpretation of data from the ongoing ENABLE trial, including MMR rate, safety and tolerability data; comparisons to historical or precedent clinical trial results; the timing, content and availability of additional clinical data and presentation materials; the continued conduct, design, objectives, endpoints, dose selection and future clinical evaluation of ELVN-001, including the planned ENABLE-2 Phase 3 trial, the potential timing of initiation of ENABLE-2, the potential timing and outcome of further FDA discussions and the finalization of additional Phase 3 trial design details; and statements by the Company’s Chief Medical Officer and Dennis Kim, M.D., Professor of Medicine, Department of Medical Oncology and Hematology at the Princess Margaret Cancer Centre, Canada. 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 potential for interim, topline and preliminary results from the Company’s clinical trials to materially change as additional patient data become available or following more comprehensive review; the potential for results from the ongoing or any future clinical trial of ELVN-001 to differ from the results of earlier trials of ELVN-001; ELVN-001 failing to demonstrate sufficient safety, efficacy, tolerability, durability, differentiated attributes or therapeutic benefit in current or future clinical trials; risks associated with unexpected events during the remainder of the ENABLE trial, including serious adverse events, toxicities, dose reductions, discontinuations or other undesirable side effects;

delays or difficulties in recruiting, enrolling or maintaining patients in ELVN-001 clinical trials; the risks of delays in completing the ongoing ENABLE trial or initiating ENABLE-2; the Company failing to complete the ongoing ENABLE trial, to present additional data, to initiate ENABLE-2 or to advance ELVN-001 through clinical development; regulatory authorities disagreeing with the Company’s clinical trial design, dose selection, endpoints or interpretation of data, or requiring additional studies or diagnostics; lack of reliability of cross-trial comparisons because the referenced data are derived from different clinical trials at different points in time, with differences in trial design and patient populations, and results may differ in head-to-head studies; developments relating to the Company’s competitors and industry which may affect the development or potential market opportunity for ELVN-001; and the potential inability of the Company to obtain regulatory approval for, or ultimately commercialize or license, ELVN-001 or other product candidates; the Company’s limited resources; the ability to attract, hire, and retain highly skilled executive officers and employees; the ability of the Company to protect its intellectual property and proprietary technologies; the scope of any patent protection the Company obtains or the loss of any of the Company’s patent protection; reliance on third parties, including medical institutions, contract manufacturing organizations, contract research organizations and strategic partners; geo-political developments, general market or macroeconomic conditions; the Company’s ability to obtain additional capital to fund the Company’s general corporate activities and to fund the Company’s research and development; and other risks and uncertainties more fully described in the Company’s filings with the Securities and Exchange Commission (“SEC”), including under the heading “Risk Factors” in the Company’s Annual and Quarterly Reports on Form 10-K and Form 10-Q filed with the SEC and in the Company’s future SEC filings. Except as required by applicable law, the Company 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. However, readers should carefully review the reports and documents the Company files or furnishes from time to time with the SEC, particularly its Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, and Current Reports on Form 8-K.

Head-to-Head Comparisons

The Company has not performed any head-to-head trials for ELVN-001. As a result, the data referenced in this Current Report on Form 8-K are derived from different clinical trials at different points in time, with differences in trial design and patient populations. As a result, conclusions from cross-trial comparisons cannot be made.

Item 9.01

Financial Statements and Exhibits

(d) Exhibits

See the Exhibit Index below, which is incorporated by reference herein.

EXHIBIT INDEX

Exhibit

No.

Description

99.1

Press Release, dated June 11, 2026.

104

Cover Page Interactive Data File (embedded within the Inline XBRL document).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Enliven Therapeutics, Inc.

Date: June 11, 2026

By:

/s/ Benjamin Hohl

Name:

Benjamin Hohl

Title:

Chief Financial Officer and Head of Corporate Development

EX-99.1

EX-99.1

Filename: d202685dex991.htm · Sequence: 2

EX-99.1

Exhibit 99.1

Enliven Therapeutics Announces Updated Positive Phase 1 Clinical Data and Alignment with FDA on Key Phase 3 Trial

Design Components

61% overall MMR and 48% MMR achievement by 24 weeks in the 80 mg QD Phase 1b cohort

67% overall MMR and 55% MMR achievement by 24 weeks in all Phase 1b patients who had previously received 1 or 2 prior unique TKIs

Favorable safety and tolerability profile with 161 patients enrolled and a median treatment duration of 35 weeks

Alignment with the FDA on 80 mg QD as the recommended Phase 3 dose and on the 2L+ patient population for the

ENABLE-2 pivotal trial, which is expected to initiate in the second half of this year

BURLINGAME, Calif.,

June 11, 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 presented updated

positive data from the Phase 1 ENABLE clinical trial evaluating ELVN-001 in patients with previously treated chronic myeloid leukemia (CML). An oral presentation will be delivered later today at the European

Hematology Association (EHA) 2026 Congress, taking place June 11-15 in Stockholm, Sweden, and virtually. The Company also provided an update on recent regulatory interactions with the Food and Drug

Administration (FDA). Enliven will host a webcast and conference call today, June 11, at 8:30 a.m. ET / 2:30 p.m. CEST.

“Despite recent advances in

CML treatment, there remains a need for highly effective therapies with excellent safety and tolerability profiles optimized for long-term treatment and capable of deep and durable molecular responses,” said Dennis Kim, M.D., Professor of

Medicine in the Department of Medical Oncology and Hematology at the Princess Margaret Cancer Centre, Canada. “The updated data from the ENABLE trial are very promising and encouraging. The trial demonstrated meaningful responses across lines

of therapy in heavily pretreated patients, including responses in patients who had shown a lack of efficacy to the most effective approved therapies. Further, ELVN-001 demonstrated a favorable safety and

tolerability profile, reflecting its high selectivity. I look forward to the initiation of the planned Phase 3 ENABLE-2 trial, which could establish ELVN-001 as an

important new treatment option for patients with previously treated CML.”

“These promising results continue to showcase the consistency of ELVN-001’s overall profile and reinforce its potential to be a best-in-class

ATP-competitive inhibitor with differentiated activity relative to allosteric inhibitors,” said Helen Collins, M.D., Chief Medical Officer of Enliven. “In these data, we observed higher response

rates in patients treated in earlier lines of therapy, and comparable response

rates regardless of prior asciminib exposure. We are also thrilled by the outcome of our recent End-of- Phase 1

meeting with the FDA, where we reached alignment on the 80 mg once daily dose and the inclusion of patients who have received at least one prior TKI in the planned ENABLE-2 Phase 3 trial. This is an important

milestone as we advance towards initiating ENABLE-2 later this year.”

ELVN-001 is a potent, highly selective, potentially

best-in-class small molecule kinase inhibitor designed to specifically target the BCR::ABL1 gene fusion, the oncogenic driver for patients living with CML. Data

presented at EHA are from the ongoing ENABLE Phase 1 clinical trial, which enrolled patients with CML that is relapsed, refractory or intolerant to available tyrosine kinase inhibitors (TKIs) (NCT05304377).

ELVN-001 Updated Data Highlights

ENABLE Has Enrolled a Heavily Pretreated Patient Population

As of the cutoff date of March 10, 2026, 161 patients were enrolled in the ongoing Phase 1 trial across dose levels

ranging from 10-240 mg daily.

Most patients (76%) remain on study with a median treatment duration of 35 weeks.

Patients enrolled were heavily pretreated, with 70% having received three or more prior unique TKIs and 23% having

received five or more unique TKIs.

62% of patients received prior asciminib, and these patients were more heavily pretreated than the overall trial

population: 93% received three or more prior unique TKIs, and 34% received five or more unique TKIs.

8% of patients enrolled with mutations associated with resistance to allosteric inhibitors, increasing from 4% in Phase

1a to 11% in Phase 1b.

Encouraging ELVN-001 Efficacy Data by 24 Weeks

Of the 90 patients enrolled in the Phase 1b, 78 had typical BCR::ABL1 transcripts and had at least one post-baseline

transcript; 69 patients were evaluable for major molecular response (MMR) by 24 weeks.

Additionally, of the 49 patients enrolled in the 80 mg once daily (QD) Phase 1b cohort, 37 had typical BCR::ABL1

transcripts and had at least one post-baseline transcript; 28 patients were evaluable for MMR by 24 weeks.

Cohort (n = evaluable for MMR)

Phase 1b

Phase 1b 80 mg QD Cohort

Overall MMR

54% (n=69)

61% (n=28)

Achieved MMR

40% (n=53)

48% (n=21)

Maintained MMR

100% (n=16)

100% (n=7)

Deep Molecular Response (DMR) achievement rates were also encouraging.

By 24 weeks, DMR was achieved in 22% of patients in the overall Phase 1b and 30% of patients in the 80 mg QD Phase 1b

cohort.

Response rates were higher in less heavily pretreated patients, and prior asciminib exposure did not meaningfully impact

response rates.

Achieved Response Rates by 24-weeks (n = evaluable for MMR)

Prior number of unique TKIs:

Phase 1b (n=69)

Phase 1b post-asciminib (n=43)

1-2

55% (n=27)

60% (n=6)

3-4

32% (n=26)

28% (n=22)

5+

29% (n=16)

29% (n=15)

ELVN-001’s Safety Profile Consistent with High Selectivity for ABL1

ELVN-001 was generally well-tolerated, consistent with its high selectivity.

6% of patients discontinued due to adverse events.

The majority of treatment-emergent adverse events (TEAEs) were Grade 1 or 2.

Grade ≥3 TEAEs were reported in 53/158 (34%) patients overall;

with thrombocytopenia (6%), neutropenia (6%) and lipase elevation (6%) as the most common.

At the biologically optimal dose of 80 mg QD (n=62), Grade ≥3

TEAEs were reported in 15/62 (24%) patients, with thrombocytopenia (6%) being the only Grade ≥3 TEAE reported in >5% of patients.

Key Outcomes from the End-of-Phase 1 Meeting with the FDA

80 mg QD selected as the recommended dose for Phase 3 ENABLE-2 trial.

ENABLE-2 is expected to enroll patients with CML previously treated with one or

more TKIs, and to be randomized to receive either ELVN-001 or physician’s choice of an ATP-competitive TKI.

Additional details of the Phase 3 trial design are expected to be finalized following further discussions with the FDA,

including at a planned End-of-Phase 2 meeting anticipated in the third quarter of 2026.

The oral presentation titled: “ENABLE: Updated Efficacy and Safety Results of ELVN-001, a Novel Selective ATP-Competitive Inhibitor of BCR::ABL1, in Patients with Previously Treated CP-CML” will be presented today at 5:45 p.m. CEST during the European Hematology

Association Congress in Stockholm, Sweden, by Dennis Kim, M.D., Professor of Medicine, Department of Medical Oncology and Hematology at the Princess Margaret Cancer Centre, Canada. A copy of the presentation will be available on the

“Program Presentations & Publications” section of the Company’s website at www.enliventherapeutics.com.

Webcast and

Conference Call Information

Enliven will host a live webcast and conference call today at 8:30 a.m. ET / 2:30 p.m. CEST. To participate in the live event,

please register using this link. Following registration, participants will have access to dial in numbers and a unique passcode should they prefer to participate by phone. The event and accompanying slides can also be accessed by visiting the

investor relations section of the Company’s website at https://ir.enliventherapeutics.com. An archived webcast will be available on the Company’s website following the event.

About the ENABLE Trial

The ENABLE study (NCT05304377) is a Phase 1 study of ELVN-001 in patients with previously treated CML. ENABLE is a dose

escalation and expansion trial designed to evaluate safety and tolerability and to determine the recommended dose for further clinical evaluation of ELVN-001 in patients with CML with and without T315I

mutations that is relapsed, refractory or intolerant to TKIs. Secondary endpoints include pharmacokinetics, MMR by central quantitative reverse transcriptase polymerase chain reaction, duration of MMR, BCR::ABL1 transcript levels and complete

hematologic response.

About ELVN-001

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. ELVN-001, a highly selective active-site TKI, has a mechanism of action that is complementary to allosteric BCR::ABL1 inhibitors, which may play an increasingly important role in the standard of care. ELVN-001 was designed to have activity against the T315I mutation, the most common BCR::ABL1 mutation, which confers resistance to nearly all approved TKIs, as well as activity against mutations known to confer

resistance to allosteric BCR::ABL1 inhibitors.

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. 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 Enliven’s management, as well as

assumptions made by, and information currently available to, Enliven’s management. 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 profile, activity, selectivity, safety, tolerability, efficacy, differentiated attributes, therapeutic benefit and potential

best-in-class or complementary profile of ELVN-001 to allosteric inhibitors; the interpretation of data from the ongoing ENABLE

trial, including MMR rate, safety and tolerability data; comparisons to historical or precedent clinical trial results; the timing, content and availability of additional clinical data and presentation materials; the continued conduct, design,

objectives, endpoints, dose selection and future clinical evaluation of ELVN-001, including the planned ENABLE-2 Phase 3 trial, the potential timing of initiation of ENABLE-2, the potential timing and outcome of further FDA discussions and the finalization of additional Phase 3 trial design details; and statements by Enliven’s Chief Medical Officer, and Dennis Kim, M.D.,

Professor of Medicine, Department of Medical Oncology and Hematology at the Princess Margaret Cancer Centre, Canada. 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 potential for interim, topline and

preliminary results from Enliven’s clinical trials to materially change as additional patient data become available or following more comprehensive review; the potential for results from the ongoing or any future clinical trial of ELVN-001 to differ from the results of earlier trials of ELVN-001; ELVN-001 failing to demonstrate sufficient safety, efficacy, tolerability, durability, differentiated

attributes or therapeutic benefit in current or future clinical trials; risks associated with unexpected events during the remainder of the ENABLE trial including serious adverse events, toxicities, dose reductions, discontinuations or other

undesirable side effects; delays or difficulties in recruiting, enrolling or maintaining patients in ELVN-001 clinical trials; the risks of delays in completing the ongoing ENABLE trial or initiating ENABLE-2; Enliven failing to complete the ongoing ENABLE trial, to present additional data, to initiate ENABLE-2 or to advance ELVN-001

through clinical development; regulatory authorities disagreeing with Enliven’s clinical trial design, dose selection, endpoints or interpretation of data, or requiring additional studies or diagnostics; lack of reliability of cross-trial

comparisons because the referenced data are derived from different clinical trials at different points in time, with differences in trial design and patient populations, and results may differ in head-to-head studies; developments relating to Enliven’s competitors and industry which may affect the development or potential market opportunity for ELVN-001;

and the potential inability of Enliven to obtain regulatory approval for, or ultimately commercialize or license, ELVN-001 or other product candidates; Enliven’s limited resources; 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 medical institutions, contract manufacturing organizations, contract research organizations and strategic partners; geo-political

developments, 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 more fully described in Enliven’s filings with the Securities and Exchange Commission (SEC), including under the heading “Risk

Factors” in Enliven’s Annual and Quarterly Reports on Form 10-K and Form 10-Q filed with the SEC and in Enliven’s

future SEC filings. 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.

This press release contains hyperlinks to information that is not deemed to be incorporated by reference into this press release.

Head-to-Head Comparisons

The Company has not performed any head-to-head trials for ELVN-001. As a result, the data referenced in this press release are derived from different clinical trials at different points in time, with differences in trial design and patient populations. As a result,

conclusions from cross-trial comparisons cannot be made.

Contact:

Investors

ir@enliventherapeutics.com

Media

media@enliventherapeutics.com

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The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

+ References

No definition available.

+ Details

Name:

dei_DocumentType

Namespace Prefix:

dei_

Data Type:

dei:submissionTypeItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Address Line 1 such as Attn, Building Name, Street Name

+ References

No definition available.

+ Details

Name:

dei_EntityAddressAddressLine1

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Name of the City or Town

+ References

No definition available.

+ Details

Name:

dei_EntityAddressCityOrTown

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Code for the postal or zip code

+ References

No definition available.

+ Details

Name:

dei_EntityAddressPostalZipCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Name of the state or province.

+ References

No definition available.

+ Details

Name:

dei_EntityAddressStateOrProvince

Namespace Prefix:

dei_

Data Type:

dei:stateOrProvinceItemType

Balance Type:

na

Period Type:

duration

X

- Definition

A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityCentralIndexKey

Namespace Prefix:

dei_

Data Type:

dei:centralIndexKeyItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Indicate if registrant meets the emerging growth company criteria.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityEmergingGrowthCompany

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.

+ References

No definition available.

+ Details

Name:

dei_EntityFileNumber

Namespace Prefix:

dei_

Data Type:

dei:fileNumberItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Two-character EDGAR code representing the state or country of incorporation.

+ References

No definition available.

+ Details

Name:

dei_EntityIncorporationStateCountryCode

Namespace Prefix:

dei_

Data Type:

dei:edgarStateCountryItemType

Balance Type:

na

Period Type:

duration

X

- Definition

The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityRegistrantName

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityTaxIdentificationNumber

Namespace Prefix:

dei_

Data Type:

dei:employerIdItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Local phone number for entity.

+ References

No definition available.

+ Details

Name:

dei_LocalPhoneNumber

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 13e

-Subsection 4c

+ Details

Name:

dei_PreCommencementIssuerTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

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Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14d

-Subsection 2b

+ Details

Name:

dei_PreCommencementTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

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Period Type:

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X

- Definition

Title of a 12(b) registered security.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b

+ Details

Name:

dei_Security12bTitle

Namespace Prefix:

dei_

Data Type:

dei:securityTitleItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Name of the Exchange on which a security is registered.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection d1-1

+ Details

Name:

dei_SecurityExchangeName

Namespace Prefix:

dei_

Data Type:

dei:edgarExchangeCodeItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14a

-Subsection 12

+ Details

Name:

dei_SolicitingMaterial

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Trading symbol of an instrument as listed on an exchange.

+ References

No definition available.

+ Details

Name:

dei_TradingSymbol

Namespace Prefix:

dei_

Data Type:

dei:tradingSymbolItemType

Balance Type:

na

Period Type:

duration

X

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Securities Act

-Number 230

-Section 425

+ Details

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dei_WrittenCommunications

Namespace Prefix:

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Data Type:

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