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Kura Oncology (NASDAQ: KURA) posts Q1 revenue and updates AML pipeline

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(Moderate)
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(Neutral)
Form Type
8-K

Rhea-AI Filing Summary

Kura Oncology reported first quarter 2026 results highlighted by the first commercial sales of KOMZIFTI, its menin inhibitor for relapsed or refractory NPM1‑mutated AML. KOMZIFTI generated $5.8 million in net product revenue, with 85 new patient starts, 157 total prescriptions and more than 93% payer coverage.

Total revenue was $18.3 million, up from $14.1 million a year earlier, driven by new product revenue and $12.5 million of collaboration revenue. Kura posted a net loss of $73.3 million as it increased R&D and commercialization spending. Cash and investments of $580.8 million, plus $180 million in anticipated collaboration payments, are expected to fund its ziftomenib AML program through topline Phase 3 KOMET‑017 results anticipated in 2028.

Positive

  • First commercial revenue from KOMZIFTI reached $5.8 million in Q1 2026, with 85 new patient starts, 157 prescriptions and more than 93% payer coverage, demonstrating initial market uptake for Kura’s lead AML therapy.
  • Robust balance sheet and runway with $580.8 million in cash, cash equivalents and short-term investments plus $180 million in anticipated collaboration payments, expected to fund the ziftomenib AML program through topline KOMET-017 Phase 3 results anticipated in 2028.
  • Promising pipeline data including a 44% objective response rate and 94% disease control rate for darlifarnib plus cabozantinib in renal cell carcinoma support continued development of the solid tumor portfolio.

Negative

  • None.

Insights

First KOMZIFTI sales and strong cash runway mark an important transition.

Kura Oncology has moved into its first full quarter of commercialization, with KOMZIFTI net product revenue of $5.8M. Early demand signals—85 new patient starts, 157 prescriptions and >93% payer coverage—show initial market uptake in relapsed/refractory NPM1‑mutant AML.

Total revenue reached $18.3M, up from $14.1M, but higher R&D and SG&A spending led to a larger net loss of $73.3M. Cash and investments of $580.8M, together with $180M in anticipated Kyowa Kirin collaboration payments, are expected to fund the ziftomenib AML program through topline KOMET‑017 Phase 3 results in 2028.

The company also reported encouraging early darlifarnib data, including a 44% objective response rate and 94% disease control rate in renal cell carcinoma, plus multiple 2026 data and commercial milestones. Subsequent disclosures around KOMET‑017 progress and commercial trends in future periods will further clarify the long‑term trajectory.

Item 2.02 Results of Operations and Financial Condition Financial
Disclosure of earnings results, typically an earnings press release or preliminary financials.
Item 9.01 Financial Statements and Exhibits Exhibits
Financial statements, pro forma financial information, and exhibit attachments filed with this report.
KOMZIFTI net product revenue $5.8M First full commercial quarter, Q1 2026
Total revenue $18.3M Q1 2026 vs $14.1M in Q1 2025
Net loss $73.3M Q1 2026 net loss vs $57.4M in Q1 2025
Research and development expenses $65.3M Q1 2026, primarily ziftomenib combination trials
Selling, general and administrative expenses $31.6M Q1 2026 commercialization-related investments
Cash, cash equivalents and short-term investments $580.8M Balance as of March 31, 2026
Anticipated collaboration payments $180M Expected under Kyowa Kirin collaboration
KOMZIFTI payer coverage >93% Coverage across plans for more than 12M lives
menin inhibitor medical
"KOMZIFTI™ (ziftomenib), a biopharmaceutical company focused on precision medicines for cancer, today reported..."
A menin inhibitor is a type of experimental drug that blocks the action of a protein called menin, which some cancers use to keep growing. Think of it as flipping off a switch that cancer cells rely on to survive; by doing so, these drugs can slow or stop tumor growth. Investors watch menin inhibitors because clinical trial results, regulatory approvals, and market demand determine whether they become valuable cancer treatments and potential revenue drivers.
relapsed or refractory acute myeloid leukemia medical
"approved once-daily, oral menin inhibitor for the treatment of adults with relapsed or refractory NPM1-mutated acute myeloid leukemia"
differentiation syndrome medical
"Boxed WARNING: DIFFERENTIATION SYNDROME Differentiation syndrome, which can be fatal, has occurred with KOMZIFTI."
Differentiation syndrome is a potentially serious treatment reaction that can occur when certain cancer drugs force immature tumor cells to mature quickly, causing widespread inflammation, fluid buildup, breathing problems or organ stress — like a sudden crowd surge that clogs exits and streets. It matters to investors because the risk and management of this side effect can influence clinical trial results, drug approvals, safety labeling, prescribing use and ultimately a therapy’s market value and adoption.
objective response rate medical
"The data support darlifarnib’s potential... with • 44% objective response rate (ORR)"
The objective response rate (ORR) is the percentage of patients in a clinical trial whose tumors measurably shrink or disappear according to preset rules. Investors use it as a quick, objective signal of a drug’s ability to produce a clear treatment effect—like counting how many plants visibly respond after applying a new fertilizer—and higher ORR can improve odds of regulatory approval, commercial success, and company valuation.
disease control rate medical
"The data support darlifarnib’s potential... • 94% disease control rate (DCR)"
The disease control rate is the share of patients in a clinical trial whose cancer or condition either shrinks or stops getting worse for a specified period after treatment. Think of it like the percentage of people for whom a treatment hits pause or nudges back the problem rather than letting it progress; higher rates suggest the therapy can meaningfully limit disease, which matters to investors assessing a drug’s potential efficacy and commercial value.
short-term investments financial
"As of March 31, 2026, Kura had $580.8 million in cash, cash equivalents and short-term investments"
Short-term investments are financial assets purchased with the goal of turning them back into cash within about a year, including things like Treasury bills, money market funds, and short-duration bonds. They matter to investors because they provide a lower-risk, more accessible place to park money than stocks or long-term bonds—like a nearby savings box that earns some interest while staying ready for immediate needs or opportunities.
Total revenue $18.3M +29% YoY
Net loss $73.3M +28% YoY
KOMZIFTI net product revenue $5.8M N/A (new product)
Guidance

Kura believes existing cash, cash equivalents, short-term investments and $180M in anticipated collaboration payments will fund the ziftomenib AML program through topline KOMET-017 Phase 3 results anticipated in 2028.

false000142214300014221432026-05-122026-05-12

 

 

 

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): May 12, 2026

KURA ONCOLOGY, INC.

(Exact name of Registrant as Specified in Its Charter)

Delaware

001-37620

61-1547851

(State or Other Jurisdiction

of Incorporation)

(Commission File Number)

(IRS Employer

Identification No.)

 

 

 

4930 Directors Place, Suite 500, San Diego, CA

92121

(Address of Principal Executive Offices)

(Zip Code)

Registrant’s Telephone Number, Including Area Code: (858) 500-8800

N/A

(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 Instructions 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 $0.0001 per share

KURA

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 2.02 Results of Operations and Financial Condition.

On May 12, 2026, Kura Oncology, Inc. (the “Company”) issued a press release announcing the Company’s financial results for the first quarter ended March 31, 2026 and providing a corporate update. A copy of this press release is furnished herewith as Exhibit 99.1.

The information contained in this Current Report on Form 8-K under Item 2.02 and Exhibit 99.1 hereto are being furnished and shall not be deemed to be “filed” for the purposes of Section 18 of the Securities and Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section and will not be incorporated by reference into any registration statement filed by the Company, under the Securities Act of 1933, as amended, unless specifically identified as being incorporated therein by reference.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

 

Exhibit

Number

Description

99.1

Press release dated May 12, 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 thereunto duly authorized.

 

KURA ONCOLOGY, INC.

Date: May 12, 2026

By:

/s/ Teresa Bair

Teresa Bair

Chief Legal Officer

 

 

 


Exhibit 99.1

img71811756_0.jpg

 

 

Kura Oncology Reports FIRST Quarter 2026 Financial Results

 

– $5.8 million in KOMZIFTI™ (ziftomenib) net product revenue in first full quarter of commercialization –

 

– Robust new patient starts and early launch dynamics, including repeat use, switching and combination adoption, reflect strong early momentum –

 

– Broad and rapid payer access achieved, with > 93% coverage and favorable positioning across > 12 million lives –

 

– Multiple 2026 data readouts expected to support ziftomenib as a broadly combinable backbone across AML –

 

– $580.8 million in cash, cash equivalents and short-term investments, plus $180 million in anticipated collaboration payments, expected to support advancement of ziftomenib AML program through first topline KOMET-017 Phase 3 results –

 

– Management to host webcast and conference call today at 4:30 p.m. ET –

 

SAN DIEGO, May 12, 2026 – Kura Oncology, Inc. (Nasdaq: KURA), a biopharmaceutical company focused on precision medicines for cancer, today reported first quarter 2026 financial results and provided a corporate update.

 

“In its first full quarter of commercial availability, KOMZIFTI generated $5.8 million in net revenue, with early launch dynamics indicating growing physician adoption and utilization patterns based on product profile. We believe these early signals support KOMZIFTI’s potential to become the leading therapy in relapsed/refractory NPM1-mutant AML,” said Troy Wilson, Ph.D., J.D., President and Chief Executive Officer of Kura Oncology. “Supported by a robust clinical development program designed to establish it as a broadly combinable backbone across the AML treatment continuum, and with multiple data readouts expected this year across frontline and combination settings, we are well positioned for the next phase of growth.”

 

Recent Developments

 

KOMZIFTI Launch Performance (First Quarter 2026)

 

 


 

KOMZIFTI delivered a strong first full quarter of commercial performance, with early indicators supporting adoption and continued momentum:

 

$5.8 million in net product revenue in the first full quarter of commercial sales

 

85 new patient starts and 157 total prescriptions, reflective of both uptake and repeat use

 

> 93% payer coverage achieved, with favorable positioning across plans covering more than 12 million lives

 

Early market dynamics, including repeat prescribing, expanding use across treatment settings, initial combination use and instances of switching from other menin inhibitors, indicate growing physician adoption based on product profile.

 

Advancing Ziftomenib Across the Acute Myeloid Leukemia (AML) Treatment Continuum

 

Kura continues to execute on its strategy to establish ziftomenib as a broadly combinable backbone therapy across AML:

 

KOMET-017 (Phase 3 Frontline Program): Ongoing site activation and patient enrollment for both studies across global sites with strong early progress

 

KOMET-008 (FLT3 Relapsed/Refractory [R/R] Population): Ongoing enrollment evaluating ziftomenib combined with gilteritinib in patients with R/R AML harboring FLT3-ITD/NPM1 co-mutations

 

KOMET-007 (FLT3 Frontline Population): Ongoing enrollment evaluating ziftomenib combined with quizartinib plus cytarabine and daunorubicin (7+3) induction chemotherapy in patients with newly diagnosed AML harboring FLT3-ITD/NPM1 co-mutations

 

Japanese Registrational Trial: First patient dosed in Phase 2 trial (jRCT2031250550) for treatment of R/R NPM1-m AML, representing a significant step toward bringing a potential new treatment option to patients in Japan

 

Multiple clinical data readouts expected in 2026 across combination regimens and treatment settings, supporting ziftomenib’s potential use broadly across the AML landscape.

 

 


 

 

Solid Tumor Pipeline Progress

 

Kura continues to advance darlifarnib as a novel approach to overcoming resistance in targeted therapy:

 

Proof-of-mechanism data for darlifarnib in combination with cabozantinib: At the 2026 International Kidney Cancer Symposium: Europe (IKCS) conference, Kura presented proof-of-mechanism data for darlifarnib in combination with cabozantinib in patients with clear cell renal cell carcinoma previously treated with cabozantinib

 

The data support darlifarnib’s potential to overcome resistance and resensitize tumors to VEGF TKI therapy, with

 

44% objective response rate (ORR)
94% disease control rate (DCR)
Tumor shrinkage in 75% of patients

 

FIT-001 Phase 1b dose expansion: Enrollment is ongoing

 

 

2026 Commercial Priorities and Anticipated Development Milestones

 

Kura expects multiple value-driving catalysts in 2026 across commercial development and clinical development:

 

KOMZIFTI Commercial Execution

 

Drive clear differentiation within the menin inhibitor class
Deliver sustained quarter-over-quarter growth in revenue and adoption
Establish leading class share in R/R NPM1-m AML

 

Ziftomenib – Frontline AML

 

Present updated results for ziftomenib / 7+3 combination in frontline NPM1-m/KMT2A-r AML (KOMET-007) in an oral presentation at the European Hematology Association (EHA) 2026 Congress in June 2026

 

Ziftomenib – Relapsed/Refractory AML

 

Publish data for ziftomenib plus venetoclax + azacitidine in R/R NPM1-m AML (1H 2026)
Present preliminary KOMET-008 data for ziftomenib and gilteritinib combination in R/R NPM1-m/FLT3-m AML (2H 2026)

 


 

 

Ziftomenib and Menin Inhibition – Expansion Beyond AML

 

Continue enrollment of KOMET-015 evaluating ziftomenib + imatinib in gastrointestinal stromal tumors (GIST)
Progress preclinical development of next-generation menin inhibitor for use in other solid tumors

 

Darlifarnib

 

Present preliminary clinical data for darlifarnib plus adagrasib in KRASG12C-mutated solid tumors at the upcoming American Society of Clinical Oncology (ASCO) 2026 Annual Meeting in May 2026
Present updated Phase 1a data with the first report of long-term follow-up for darlifarnib plus cabozantinib in advanced RCC (2H 2026)

 

KO-7246 (Next-Generation Menin Inhibitor)

 

Advance KO-7246 into IND-enabling studies for diabetes and cardiometabolic disease
Present additional preclinical data for menin inhibitors in diabetes

 

 

First Quarter 2026 Financial Results

 

Net product revenue: $5.8 million, compared to none for Q1 2025
Collaboration revenue: $12.5 million, compared to $14.1 million for Q1 2025
R&D expenses: $65.3 million, compared to $56.0 million for Q1 2025, primarily driven by advancement of ziftomenib combination trials, including KOMET-017
SG&A expenses: $31.6 million, compared to $22.8 million for Q1 2025, reflecting commercialization-related investments
Net loss: $73.3 million, compared to $57.4 million for Q1 2025. Net loss includes $8.4 million in non-cash, share-based compensation expense compared to $7.8 million for the same period in 2025.

As of March 31, 2026, Kura had $580.8 million in cash, cash equivalents and short-term investments, compared to $667.2 million as of December 31, 2025.

The Company believes its cash, cash equivalents and short-term investments as of March 31, 2026, when combined with $180 million in anticipated payments under the collaboration agreement with Kyowa Kirin, will be sufficient to fund the ziftomenib AML

 


 

program through the topline results from the first pivotal Phase 3 KOMET-017 frontline trial, anticipated in 2028.

Conference Call and Webcast

Kura’s management will host a webcast and conference call at 4:30 p.m. ET / 1:30 p.m. PT today, May 12, 2026, to discuss financial results and to provide a corporate update. A live webcast and archived replay of the event will be available here or from the Investors section of the Company’s website at www.kuraoncology.com.

About Kura Oncology

 

Kura Oncology is a biopharmaceutical company committed to realizing the promise of precision medicines for the treatment of cancer. Kura’s pipeline of small molecule drug candidates is designed to target cancer signaling pathways and address high-need hematologic malignancies and solid tumors. Kura developed and is commercializing KOMZIFTI™ (ziftomenib), the FDA-approved once-daily, oral menin inhibitor for the treatment of adults with relapsed or refractory NPM1-mutated acute myeloid leukemia, and continues to pioneer advancements in menin inhibition and farnesyl transferase inhibition. For additional information, please visit the Kura website and follow us on X and LinkedIn.

 

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, Kura’s future performance in 2026; the commercial potential of KOMZIFTI; KOMZIFTI’s potential market leadership in R/R NPM1-m AML; KOMZIFTI’s potential as a broadly combinable backbone across the AML treatment continuum; Kura’s research, preclinical and clinical development activities; plans and projected timelines for ziftomenib, darlifarnib, KO-7246 and other preclinical assets; the expected timing and presentation of results and data from clinical trials; and Kura’s anticipated cash runway. Factors that may cause actual results to differ materially include risks associated with market competition, market acceptance and commercialization of KOMZIFTI; risks associated with the conduct of preclinical studies and clinical trials; risks that Kura’s actual future financial and operating results may differ from its expectations or goals; the risk that Kura’s product candidates may not receive regulatory approval; the potential for KOMZIFTI or Kura’s product candidates to have unexpected adverse side effects; the risk that Kura may not be able to obtain additional financing; the risk that the collaboration with Kyowa Kirin is unsuccessful; 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.

 

FLT3, Fms-like tyrosine kinase 3 gene; KMT2A, lysine methyltransferase 2A gene; NPM1, nucleophosmin 1 gene; -m, mutant; -r, rearranged; ITD, Internal Random Duplication; KRAS, Kirsten Rat Sarcoma Virus oncogene homolog.

 

 

 

KURA ONCOLOGY, INC.

 

Statements of Operations Data

 

(unaudited)

 

(in thousands, except per share data)

 

 

 

 

 

 

 

 

 

 

Three Months Ended

 

 

 

March 31,

 

 

 

2026

 

 

2025

 

Revenue

 

 

 

 

 

 

Product revenue, net

 

$

5,766

 

 

$

 

Collaboration revenue

 

 

12,499

 

 

 

14,108

 

Total revenue

 

 

18,265

 

 

 

14,108

 

Operating expenses

 

 

 

 

 

 

Cost of product sales

 

 

262

 

 

 

 

Research and development

 

 

65,263

 

 

 

55,973

 

Selling, general and administrative

 

 

31,555

 

 

 

22,835

 

Total operating expenses

 

 

97,080

 

 

 

78,808

 

Other income, net

 

 

5,490

 

 

 

7,497

 

Income tax expense

 

 

8

 

 

 

226

 

Net loss

 

$

(73,333

)

 

$

(57,429

)

Net loss per share, basic and diluted

 

$

(0.83

)

 

$

(0.66

)

Weighted average number of shares used in computing net loss per share, basic and diluted

 

 

88,610

 

 

 

87,415

 

 

 

 

 

 

 

 

 

 


 

KURA ONCOLOGY, INC.

 

Balance Sheet Data

 

(unaudited)

 

(in thousands)

 

 

 

 

 

 

 

 

 

 

March 31,

 

 

December 31,

 

 

 

2026

 

 

2025

 

Cash, cash equivalents and short-term investments

 

$

580,823

 

 

$

667,240

 

Working capital

 

 

522,286

 

 

 

591,689

 

Total assets

 

 

652,551

 

 

 

738,363

 

Long-term liabilities

 

 

443,172

 

 

 

447,254

 

Accumulated deficit

 

 

(1,247,421

)

 

 

(1,174,088

)

Stockholders’ equity

 

 

107,883

 

 

 

174,135

 

 

About KOMZIFTI™ (ziftomenib)

KOMZIFTI (ziftomenib) is an oral menin inhibitor approved for the treatment of adult patients with relapsed or refractory acute myeloid leukemia (AML) with a susceptible NPM1 mutation who have no satisfactory alternative treatment options.

 

Ziftomenib is in development for the treatment of frontline and R/R AML harboring NPM1 mutations, KMT2A translocations and FLT3 mutations, with the potential to be combined with approved therapies and benefit a broad spectrum of patients.

 

IMPORTANT SAFETY INFORMATION FOR KOMZIFTI FROM THE U.S. PRESCRIBING INFORMATION

 

Boxed WARNING: DIFFERENTIATION SYNDROME

Differentiation syndrome, which can be fatal, has occurred with KOMZIFTI. Signs and symptoms may include fever, joint pain, hypotension, hypoxia, dyspnea, rapid weight gain or peripheral edema, pleural or pericardial effusions, pulmonary infiltrates, acute kidney injury, and rashes. If differentiation syndrome is suspected, interrupt KOMZIFTI, and initiate oral or intravenous corticosteroids with hemodynamic and laboratory monitoring until symptom resolution; resume KOMZIFTI upon symptom improvement.

 

WARNINGS AND PRECAUTIONS

Differentiation Syndrome

KOMZIFTI can cause fatal or life-threatening differentiation syndrome (DS). DS is associated with rapid proliferation and differentiation of myeloid cells. Symptoms of DS, including those seen in patients treated with KOMZIFTI, may include fever, hypoxia, joint pain, hypotension, dyspnea, rapid weight gain or peripheral edema, pleural or pericardial effusions, acute kidney injury, and rashes.

 


 

In the clinical trial, DS occurred in 29 (26%) of 112 patients with R/R AML with an NPM1 mutation who were treated with KOMZIFTI at the recommended dosage. DS was Grade 3 in 13% and fatal in two patients. In broader evaluation of all patients with any genetic form of AML treated with KOMZIFTI monotherapy in clinical trials, DS occurred in 25% of patients. Four fatal cases of DS occurred out of 39 patients with KMT2A-rearranged AML treated with KOMZIFTI. KOMZIFTI is not approved for use in patients with KMT2A-rearranged AML.

In the 112 patients with an NPM1 mutation, DS was observed with and without concomitant hyperleukocytosis, in as early as 3 days and up to 46 days after KOMZIFTI initiation. The median time to onset was 15 days. Two patients experienced more than one DS event. Treatment was interrupted and resumed in 15 (13%) patients, while it was permanently discontinued in 2 (2%) patients.

Prior to starting treatment with KOMZIFTI, reduce the WBC counts to less than 25 x 10⁹/L. If DS is suspected, interrupt KOMZIFTI, initiate oral or intravenous corticosteroids (e.g., dexamethasone 10 mg every 12 hours) for a minimum of 3 days with hemodynamic and laboratory monitoring. Resume treatment with KOMZIFTI at the same dose level when signs and symptoms improve and are Grade 2 or lower. Taper corticosteroids over a minimum of 3 days after adequate control or resolution of symptoms. Symptoms of DS may recur with premature discontinuation of corticosteroid treatment.

QTc Interval Prolongation

KOMZIFTI can cause QTc interval prolongation. In the clinical trial, QTc interval prolongation was reported as an adverse reaction in 12% of 112 patients treated with KOMZIFTI at the recommended dosage for R/R AML with an NPM1 mutation. QTc interval prolongation was Grade 3 in 8% of patients. The heart-rate corrected QT interval (using Fridericia’s method) (QTcF) was greater than 500 msec in 9% of patients, and the increase from baseline QTcF was greater than 60 msec in 12% of patients. KOMZIFTI dose reduction was required for 1% of patients due to QTc interval prolongation. QTc prolongation occurred in 14% of the 42 patients less than 65 years of age and in 10% of the 70 patients 65 years of age or older.

Correct electrolyte abnormalities, including hypokalemia and hypomagnesemia, prior to treatment with KOMZIFTI. Perform an ECG prior to initiation of treatment with KOMZIFTI, and do not initiate KOMZIFTI in patients with QTcF > 480 msec. Perform an ECG at least once weekly for the first four weeks on treatment, and at least monthly thereafter. Interrupt KOMZIFTI if the QTc interval is > 500 ms or the change from baseline is > 60 ms (Grade 3). In patients with congenital long QTc syndrome, congestive heart failure, electrolyte abnormalities, or those who are taking medications known to prolong the QTc interval, more frequent ECG monitoring may be necessary.

 


 

Concomitant use of KOMZIFTI with drugs known to prolong the QTc interval may increase the risk of QTc interval prolongation, result in a greater increase in the QTc interval and adverse reactions associated with QTc interval prolongation, including Torsades de Pointes, other serious arrhythmias, and sudden death.

Embryo-Fetal Toxicity

Based on findings in animals and its mechanism of action, KOMZIFTI can cause embryo-fetal harm when administered to a pregnant woman. Advise pregnant women of the potential risk to the fetus. Advise females of reproductive potential to use effective contraception during treatment with KOMZIFTI and for 6 months after the last dose. Advise males with female partners of reproductive potential to use effective contraception during treatment with KOMZIFTI and for 3 months after the last dose.

ADVERSE REACTIONS

Fatal adverse reactions occurred in 4 (4%) patients who received KOMZIFTI, including 2 with differentiation syndrome, 1 with infection, and 1 with sudden death. Serious adverse reactions were reported in 79% of patients who received KOMZIFTI. Serious adverse reactions occurring in ≥ 5% of patients included infection without an identified pathogen (29%), febrile neutropenia (18%), bacterial infection (16%), differentiation syndrome (16%), and dyspnea (6%).

Dosage interruption of KOMZIFTI due to an adverse reaction occurred in 54% of patients. Adverse reactions that required dose interruption in ≥ 2% of patients included infection without an identified pathogen (15%), differentiation syndrome (13%), febrile neutropenia (5%), pyrexia (4%), electrocardiogram QT prolonged (4%), leukocytosis (4%), bacterial infection (3%), cardiac failure (2%), cholecystitis (2%), diarrhea (2%), pruritus (2%), and thrombosis (2%). Dose reduction of KOMZIFTI due to an adverse reaction occurred in 4% of patients. Permanent discontinuation of KOMZIFTI due to an adverse reaction occurred in 21% of patients. Adverse reactions that required permanent discontinuation of KOMZIFTI in ≥ 2% of patients were infection without an identified pathogen (8%), bacterial infection (4%), cardiac arrest (2%), and differentiation syndrome (2%).

Most common (≥ 20%) adverse reactions, including laboratory abnormalities, were aspartate aminotransferase increased (53%), infection without an identified pathogen (52%), potassium decreased (52%), albumin decreased (51%), alanine aminotransferase increased (50%), sodium decreased (49%), creatinine increased (45%), alkaline phosphatase increased (41%), hemorrhage (38%), diarrhea (36%), nausea (35%), fatigue (34%), edema (30%), bacterial infection (28%), musculoskeletal pain (28%), bilirubin increased (27%), potassium increased (26%), differentiation syndrome (26%), pruritus (23%), febrile neutropenia (22%), and transaminases increased (21%).

 


 

 

DRUG INTERACTIONS

Drug interactions may occur when KOMZIFTI is concomitantly used with:

Strong or Moderate CYP3A4 Inhibitors: Monitor patients more frequently for KOMZIFTI-associated adverse reactions.
Strong or Moderate CYP3A4 Inducers: Avoid concomitant use of KOMZIFTI.
Gastric Acid Reducing Agents: Avoid concomitant use of KOMZIFTI with proton pump inhibitors (PPIs), H2 receptor antagonists (H2RAs), or locally acting antacids. If concomitant use with H2RAs or locally acting antacids cannot be avoided, modify KOMZIFTI administration time.
o
Take KOMZIFTI 2 hours before or 10 hours after administration of an H2 receptor antagonist.
o
Take KOMZIFTI 2 hours before or 2 hours after administration of a locally acting antacid.
Drugs that Prolong the QTc Interval: Avoid concomitant use of KOMZIFTI. If concomitant use cannot be avoided, obtain ECGs when initiating, during concomitant use, and as clinically indicated. Interrupt KOMZIFTI if the QTc interval is > 500 ms or the change from baseline is > 60 ms.

 

USE IN SPECIFIC POPULATIONS

Pregnancy: Based on findings in animals and its mechanism of action, KOMZIFTI can cause embryo-fetal harm when administered to a pregnant woman. Advise pregnant women of the potential risk to a fetus. Verify pregnancy status in females of reproductive potential prior to starting KOMZIFTI.

Lactation: Because of the potential for adverse reactions in the breastfed child, advise women not to breastfeed during treatment with KOMZIFTI and for 2 weeks after the last dose.

Infertility: Based on findings in animals, KOMZIFTI may impair fertility in females and males of reproductive potential.

 

Please see full Prescribing Information, including Boxed WARNING.

 

 

Contacts

 

Investors and media:

Greg Mann
858-987-4046
gmann@kuraoncology.com

 


FAQ

How did Kura Oncology (KURA) perform financially in Q1 2026?

Kura Oncology reported total revenue of $18.3 million in Q1 2026, up from $14.1 million in Q1 2025. The company recorded a net loss of $73.3 million, compared with a $57.4 million net loss a year earlier, reflecting increased R&D and commercialization spending.

What were KOMZIFTI sales and launch metrics for Kura Oncology in Q1 2026?

KOMZIFTI generated $5.8 million in net product revenue in its first full commercial quarter. Kura reported 85 new patient starts, 157 total prescriptions and more than 93% payer coverage, indicating early adoption and broad access in relapsed or refractory NPM1‑mutant AML.

How much cash does Kura Oncology (KURA) have and what is its runway?

As of March 31, 2026, Kura held $580.8 million in cash, cash equivalents and short-term investments. Combined with $180 million in anticipated Kyowa Kirin collaboration payments, this is expected to fund the ziftomenib AML program through topline KOMET‑017 Phase 3 results anticipated in 2028.

How did Kura Oncology’s R&D and SG&A expenses change in Q1 2026?

Research and development expenses were $65.3 million in Q1 2026, up from $56.0 million in Q1 2025, mainly from ziftomenib combination trials. Selling, general and administrative costs rose to $31.6 million from $22.8 million, reflecting commercialization-related investments.

What key clinical results did Kura Oncology highlight for darlifarnib?

Kura reported proof-of-mechanism data for darlifarnib plus cabozantinib in clear cell renal cell carcinoma, showing a 44% objective response rate, 94% disease control rate and tumor shrinkage in 75% of patients. These findings support darlifarnib’s potential to address resistance to VEGF TKI therapy.

What upcoming milestones did Kura Oncology outline for 2026?

Kura expects multiple 2026 milestones, including updated ziftomenib/7+3 frontline AML data at EHA 2026, preliminary KOMET‑008 combination data in the second half, publications for ziftomenib combinations, new darlifarnib combination data at ASCO 2026, and advancing KO‑7246 into IND‑enabling studies.

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