FDA Grants Priority Review to Merck’s Application for KEYTRUDA® (pembrolizumab) Plus Standard of Care as Perioperative Treatment for Resectable Locally Advanced Head and Neck Squamous Cell Carcinoma

On February 25, 2025 Merck (NYSE: MRK), known as MSD outside of the United States and Canada, reported the U.S. Food and Drug Administration (FDA) has accepted for priority review a new supplemental Biologics License Application (sBLA) seeking approval for KEYTRUDA (pembrolizumab), Merck’s anti-PD-1 therapy, for the treatment of patients with resectable locally advanced head and neck squamous cell carcinoma (LA-HNSCC) as neoadjuvant treatment, then continued as adjuvant treatment in combination with standard of care radiotherapy with or without cisplatin and then as a single agent (Press release, Merck & Co, FEB 25, 2025, View Source [SID1234650538]). The FDA has set a Prescription Drug User Fee Act (PDUFA), or target action, date of June 23, 2025.

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The sBLA is based on data from the Phase 3 KEYNOTE-689 trial. Results from a pre-specified first interim analysis, which will be presented at an upcoming medical meeting, showed that in patients with resectable LA-HNSCC, the KEYTRUDA perioperative treatment regimen demonstrated a statistically significant and clinically meaningful improvement in event-free survival (EFS) compared to adjuvant radiotherapy (with or without cisplatin) alone. The study also showed a statistically significant improvement in major pathological response (mPR), a key secondary endpoint, for patients in the KEYTRUDA arm compared with adjuvant radiotherapy alone. The safety profile of KEYTRUDA was consistent with that observed in previously reported studies; no new safety signals were identified.

"The standard of care for patients with resectable locally advanced head and neck squamous cell carcinoma has remained the same for over two decades, representing a significant unmet need for new treatment options," said Dr. Marjorie Green, senior vice president and head of oncology, global clinical development, Merck Research Laboratories. "Based on the compelling results of the KEYNOTE-689 trial, we hope to reduce the risk of recurrence and disease progression in earlier stages of disease. We look forward to working with the FDA to potentially bring KEYTRUDA to these patients as soon as possible."

This review is being conducted under Project Orbis, an initiative of the FDA Oncology Center of Excellence that provides a framework for coordinated submission and review of oncology drugs among its international partners. Health authorities in Israel, Canada, Australia, Singapore, Brazil and Switzerland will review this application as part of Project Orbis.

KEYTRUDA is currently approved as monotherapy and in combination regimens for appropriate patients with metastatic or with unresectable, recurrent HNSCC in the U.S., Europe, China, Japan and other countries around the world. For more information, please see the "Selected KEYTRUDA (pembrolizumab) Indications in the U.S." section below.

About KEYNOTE-689

KEYNOTE-689 is a randomized, active-controlled, open-label Phase 3 trial (ClinicalTrials.gov, NCT03765918) evaluating KEYTRUDA as neoadjuvant treatment and KEYTRUDA in combination with standard of care radiotherapy (with or without cisplatin) as adjuvant treatment in treatment-naïve patients with newly diagnosed, stage III or IVA resectable, locally advanced, head and neck squamous cell carcinoma. Efficacy outcomes are classified by programmed cell death ligand 1 (PD-L1) combined positive score (CPS) status. The primary endpoint is EFS, and key secondary endpoints include overall survival, major pathological response, pathological complete response and safety. The study enrolled an estimated 704 patients who were randomized (1:1) to receive either:

KEYTRUDA (200 mg intravenously [IV] every three weeks [Q3W] for two cycles) as neoadjuvant therapy prior to surgery, followed by either KEYTRUDA (200 mg IV Q3W for 15 cycles) plus standard of care radiotherapy with cisplatin (100 mg/m2 IV Q3W for three cycles) as adjuvant therapy following surgery for high-risk patients or KEYTRUDA (200 mg IV Q3W for 15 cycles) plus standard of care radiotherapy without cisplatin as adjuvant therapy following surgery for low-risk patients; or
No neoadjuvant therapy prior to surgery, followed by either standard of care radiotherapy with cisplatin (100 mg/m2 IV Q3W for three cycles) as adjuvant therapy following surgery for high-risk patients or standard of care radiotherapy without cisplatin as adjuvant therapy following surgery for low-risk patients.
About head and neck cancer

Head and neck cancer describes a number of different tumors that develop in or around the throat, larynx, nose, sinuses and mouth. Most head and neck cancers are squamous cell carcinomas that begin in the flat, squamous cells that make up the thin surface layer of the structures in the head and neck. Locally advanced head and neck squamous cell carcinoma (LA-HNSCC) is cancer that has grown outside the original location, but has not yet spread to distant parts of the body. There are several factors that greatly increase the risk of developing head and neck cancer, including tobacco and alcohol use and human papillomavirus (HPV). It is estimated there were more than 891,500 new cases of head and neck cancer diagnosed and over 458,100 deaths from the disease in 2022 globally. In the U.S., it is estimated there will be more than 58,450 new cases of head and neck cancer diagnosed and more than 12,230 deaths from the disease in 2024.

LIXTE Adds Northwestern University’s Lurie Cancer Center as Second Site in Ongoing Clinical Trial for Ovarian Clear Cell Cancer

On February 25, 2025 LIXTE Biotechnology Holdings, Inc. ("LIXTE" or the "Company") (Nasdaq: LIXT and LIXTW), a clinical stage pharmaceutical company, reported it has added the Robert H. Lurie Comprehensive Cancer Center (Lurie Cancer Center) of Northwestern University as a second site in a clinical trial combining the Company’s proprietary compound LB-100 with GSK’s Dostarlimab to treat ovarian clear cell cancer (Press release, Lixte Biotechnology, FEB 25, 2025, View Source [SID1234650537]).

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Emily M. Hinchcliff, MD, MPH, will lead the clinical trial at Lurie Cancer Center, a renown Chicago-based National Cancer Institute-designated Comprehensive Cancer Center, which is located at Northwestern Memorial Hospital’s downtown medical campus. Patient recruitment is underway, and the first patient has been dosed.

"Clinical trials testing potentially effective therapies are essential to move our field forward, with many recent great successes," said Dr. Hinchcliff. "We are pleased to be participating in this important clinical trial to assess whether adding LIXTE’s LB-100 to GSK’s Dostarlimab will enhance the effectiveness of immunotherapy in the treatment of ovarian clear cell carcinoma, a disease of high unmet need."

Bas van der Baan, LIXTE’s Chief Executive Officer, said, "The addition of Lurie Cancer Center is a positive step in expanding the patient population and accelerating this clinical trial, which was initiated in January 2024 at The University of Texas MD Anderson Cancer Center. The trial is directed by lead clinical investigator Amir Jazaeri, MD, Professor of Gynecologic Oncology."

Kura Oncology to Participate in Three Upcoming Investor Conferences

On February 25, 2025 Kura Oncology, Inc. (the "Company") (Nasdaq: KURA), a clinical-stage biopharmaceutical company committed to realizing the promise of precision medicines for the treatment of cancer, reported that Troy Wilson, Ph.D., J.D., President and Chief Executive Officer, is scheduled to participate in three upcoming investor conferences (Press release, Kura Oncology, FEB 25, 2025, View Source [SID1234650536]):

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A fireside chat at the TD Cowen Health Care Conference in Boston at 2:30 p.m. ET / 11:30 a.m. PT on March 4, 2025;

A fireside chat at the Barclays Global Healthcare Conference in Miami at 9:30 a.m. ET / 6:30 a.m. PT on March 11, 2025; and

A fireside chat at the Leerink Partners Global Biopharma Conference in Miami at 8:00 a.m. ET / 5:00 a.m. PT on March 12, 2025.
Live audio webcasts will be available in the Investors section of Kura’s website at View Source, with archived replays available following all three events.

Kiniksa Pharmaceuticals Reports Fourth Quarter and Full Year 2024 Financial Results and Recent Portfolio Execution

On February 25, 2025 Kiniksa Pharmaceuticals International, plc (Nasdaq: KNSA) (Kiniksa), a biopharmaceutical company developing and commercializing novel therapies for diseases with unmet need, with a focus on cardiovascular indications, reported fourth quarter and full year 2024 financial results and recent portfolio execution (Press release, Kiniksa Pharmaceuticals, FEB 25, 2025, View Source [SID1234650531]).

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"Strong commercial execution in 2024 resulted in 79% year-over-year ARCALYST sales growth to $417.0 million. We believe substantial opportunity remains for ARCALYST, and expect 2025 sales of between $560 and $580 million," said Sanj K. Patel, Chairman and Chief Executive Officer of Kiniksa. "Today, we are excited to announce the development program for KPL-387, which we believe could expand the treatment options for recurrent pericarditis patients by enabling a single monthly subcutaneous injection in a liquid formulation. We have interacted with the FDA and plan to initiate a Phase 2/3 clinical trial of KPL-387 in recurrent pericarditis in mid-2025. In line with our prioritization of cardiovascular indications, we plan to discontinue the development of abiprubart in Sjögren’s Disease. On behalf of our entire organization, I would like to thank the patients, caregivers, and investigators who contributed to our study."

Corporate Update

· Kiniksa continues to focus development on diseases with unmet need, prioritizing cardiovascular indications.

o Kiniksa announced today the development of KPL-387 in recurrent pericarditis, with a target profile of monthly subcutaneous (SC) dosing. KPL-387 is a fully human immunoglobulin G2 (IgG2) monoclonal antibody that binds human interleukin-1 receptor 1 (IL-1R1), inhibiting the signaling of the cytokines interleukin-1α (IL-1α) and interleukin-1β (IL-1β).

o Kiniksa announced today that it is advancing KPL-1161 towards clinical development with a target profile of quarterly SC dosing. KPL-1161 is an Fc-modified IgG2 monoclonal antibody that binds IL-1R1, inhibiting the signaling of the cytokines IL-1α and IL-1β.

o Kiniksa announced today that it plans to discontinue abiprubart development in Sjögren’s Disease. The company will explore strategic alternatives for the asset.

o Kiniksa announced today that it has exercised its right to terminate its exclusive license agreement for mavrilimumab with MedImmune.

Portfolio Execution

ARCALYST (IL-1α and IL-1β cytokine trap)

· ARCALYST net product revenue was $122.5 million and $417.0 million for the fourth quarter and full year 2024, respectively.

· Since launch, more than 2,850 prescribers have written ARCALYST prescriptions for recurrent pericarditis.

· As of the end of the fourth quarter of 2024, average total duration of ARCALYST therapy in recurrent pericarditis was approximately 27 months.

· As of the end of the fourth quarter of 2024, approximately 13% of the target 14,000 multiple-recurrence patients were actively on ARCALYST treatment.

KPL-387 (monoclonal antibody IL-1 receptor antagonist)

· Kiniksa is conducting a single ascending dose (SAD) and multiple ascending dose Phase 1 clinical trial of KPL-387 in healthy volunteers.

o Topline data from the SAD portion of the Phase 1 trial support potential monthly SC dosing in recurrent pericarditis.

· Kiniksa has interacted with the U.S. Food and Drug Administration (FDA) and expects to initiate a Phase 2/3 clinical trial of KPL-387 in recurrent pericarditis in mid-2025, with Phase 2 data expected in the second half of 2026.

KPL-1161 (Fc-modified monoclonal antibody IL-1 receptor antagonist)

· Kiniksa is conducting Investigational New Drug (IND)-enabling development activities with a target profile of quarterly SC dosing.

Financial Results

· Total revenue for the fourth quarter of 2024 was $122.5 million, compared to $83.4 million for the fourth quarter of 2023. Total revenue for the full year 2024 was $423.2 million, compared to $270.3 million for the full year 2023.

— Total revenue for the fourth quarter of 2024 did not include any license and collaboration revenue, compared to $12.2 million for the fourth quarter of 2023.

— Total revenue for the full year 2024 included $6.2 million in license and collaboration revenue, compared to $37.1 million for the full year 2023.

· Total operating expenses for the fourth quarter of 2024 were $141.8 million, compared to $83.3 million for the fourth quarter of 2023. Total operating expenses for the full year 2024 were $468.9 million, compared to $295.5 million for the full year 2023.

— Total operating expenses for the fourth quarter of 2024 included $48.2 million in collaboration expenses, which are driven by ARCALYST collaboration profitability, compared to $16.9 million for the fourth quarter of 2023. Total operating expenses for the full year 2024 included $128.3 million in collaboration expenses, compared to $56.5 million for the full year 2023.

— Total operating expenses for the fourth quarter of 2024 included $8.3 million in non-cash, share-based compensation expense, compared to $7.8 million for the fourth quarter of 2023. Total operating expenses for the full year 2024 included $30.7 million in non-cash, share-based compensation expense, compared to $27.1 million for the full year 2023.

· Net loss for the fourth quarter of 2024 was $8.9 million, compared to a net income of $25.2 million for the fourth quarter of 2023. Net loss for the full year 2024 was $43.2 million, compared to net income of $14.1 million for the full year 2023.

— Net loss for the fourth quarter of 2024 included a tax benefit of $8.1 million, compared to a tax benefit of $22.8 million for the fourth quarter of 2023, both primarily due to the treatment of non-cash deferred tax assets.

— Net loss for the full year 2024 included a tax expense of $7.0 million, compared to a tax benefit of $30.7 million for the full year 2023, both primarily due to the treatment of non-cash deferred tax assets.

· As of December 31, 2024, Kiniksa had $243.6 million of cash, cash equivalents, and short-term investments and no debt, compared to $206.4 million as of December 31, 2023.

Financial Guidance

· Kiniksa expects 2025 ARCALYST net product revenue of between $560 million and $580 million.

· Kiniksa expects its current operating plan to remain cash flow positive on an annual basis.

Conference Call Information

· Kiniksa will host a conference call and webcast at 8:30 a.m. Eastern Time on Tuesday, February 25, 2025, to discuss fourth quarter and full year 2024 financial results and to provide a corporate update.

· Individuals interested in participating in the call via telephone may register here. Upon registration, all telephone participants will receive a confirmation email detailing how to join the conference call, including the dial-in number along with a unique passcode and registrant ID that can be used to access the call. To access the webcast, please visit the Investors and Media section of Kiniksa’s website. A replay of the event will also be available on Kiniksa’s website within approximately 48 hours after the event.

Jazz Pharmaceuticals Announces Full Year and Fourth Quarter 2024 Financial Results and Provides 2025 Financial Guidance

On February 25, 2025 Jazz Pharmaceuticals plc (Nasdaq: JAZZ) reported financial results for the full year and fourth quarter of 2024 and provided guidance for 2025 (Press release, Jazz Pharmaceuticals, FEB 25, 2025, View Source [SID1234650530]).

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"2024 was another strong year as our proven team delivered significant top- and bottom-line growth along with record total revenues of over $4 billion. Our diversified portfolio spanning sleep1, epilepsy and oncology, with each annualizing at over $1 billion, continued to drive growth," said Bruce Cozadd, chairman and chief executive officer, Jazz Pharmaceuticals. "We are pleased with the continued progress of our late-stage pipeline assets, including the recent launch of Ziihera in 2L HER2+ (IHC3+) BTC, upcoming top-line data readout from the HERIZON-GEA-01 trial in 1L GEA, which we now expect in the second half of 2025, and highly encouraging results from the Phase 3 IMforte trial, which we expect to submit as part of an sNDA for Zepzelca in 1L ES-SCLC in the first half of 2025."

Mr. Cozadd continued, "The strength of our 2024 results reinforces our confidence that Jazz is well-positioned to deliver top- and bottom-line growth in 2025 and drive long-term shareholder value. Our focus remains on disciplined capital allocation, which we expect to drive growth of our diversified commercial portfolio, continue advancement of our pipeline and provide flexibility to remain active in corporate development."

Key Highlights

•Total revenues in 2024 grew 6% year-over-year; generated over $1.4 billion in cash from operations.
•Zanidatamab:
◦Received U.S. FDA approval of and launched Ziihera in 2L HER2+ (IHC3+) BTC.
◦Top-line PFS data from zanidatamab in Phase 3 1L GEA expected in 2H25.
•On track to submit an sNDA in 1H25 for Zepzelca in combination with Tecentriq (atezolizumab) as maintenance therapy in 1L ES-SCLC based on the potentially practice-changing results from the Phase 3 IMforte trial.
•Top- and bottom-line growth expected in 2025; 2025 total revenue guidance of $4.15 – $4.40 billion, representing 5% growth at the midpoint.
◦Total revenue guidance is underpinned by expected continued growth in diversified commercial portfolio spanning sleep1, epilepsy and oncology.

Business Updates

Commercial Updates
Xywav (calcium, magnesium, potassium, and sodium oxybates) oral solution:
•Xywav net product sales increased 16% to $1,473.2 million in 2024 and increased 19% to $401.0 million in 4Q24 compared to the same periods in 2023.
•Meaningful Xywav net patient adds in 4Q24 (approximately 525 patients) with approximately 14,150 active Xywav patients exiting 4Q24, comprised of:
◦Approximately 10,250 narcolepsy patients.
◦Approximately 3,900 idiopathic hypersomnia (IH) patients, with 350 net patient adds.
•Xywav is the only low-sodium oxybate, the #1 branded treatment for narcolepsy2 and the only FDA-approved therapy to treat IH.

Xyrem (sodium oxybate) oral solution and high-sodium oxybate authorized generic (AG) royalties:
•Xyrem net product sales decreased 59% to $233.8 million in 2024 and decreased 54% to $49.3 million in 4Q24 compared to the same periods in 2023.
•Royalties from high-sodium oxybate AGs increased by $141.7 million to $217.6 million in 2024 and increased $15.9 million to $55.3 million in 4Q24, compared to the same periods in 2023.

Epidiolex/Epidyolex (cannabidiol):
•Epidiolex/Epidyolex net product sales increased 15% to $972.4 million in 2024 and increased 14% to $275.0 million in 4Q24 compared to the same periods in 2023.
•Outside of the U.S., Epidyolex is approved in more than 35 countries.
•Presented data at the American Epilepsy Society 2024 Annual meeting, including novel findings from the BECOME-LTC, BECOME-TSC and EpiCom studies, demonstrating the meaningful impact of Epidiolex in the treatment of patients with rare epilepsies including benefits of Epidiolex’s benefits beyond seizure control.
•Remain confident in achieving blockbuster status for Epidiolex/Epidyolex in 2025.

Rylaze/Enrylaze (asparaginase erwinia chrysanthemi (recombinant)-rywn):
•Rylaze/Enrylaze net product sales increased 4% to $410.8 million in 2024 and were in line in 4Q24 compared to the same periods in 2023 despite headwinds from Children’s Oncology Group (COG) protocol changes that impacted timing of asparaginase administration.
•The temporary impact to Rylaze net product sales due to previously announced COG pediatric acute lymphoblastic leukemia (ALL) protocol updates is still expected to normalize by early 2025.

Zepzelca (lurbinectedin):
•Zepzelca net product sales increased 11% to $320.3 million in 2024 and increased 6% to $78.3 million in 4Q24 compared to the same periods in 2023.
•Based on potentially practice-changing positive results from the Phase 3 IMforte trial, the Company plans to submit a supplemental New Drug Application (sNDA) for Zepzelca’s use in combination with Tecentriq as maintenance therapy in first-line (1L) extensive-stage (ES) small cell lung cancer (SCLC) in 1H25.

Ziihera (zanidatamab-hrii):
•Ziihera net product sales were $1.1 million in 2024 and 4Q24 after the initial product launch and availability in December of 2024 following FDA approval in November.
•Initial positive reception by prescribers with the first patient treated in December.
•Ziihera added to National Comprehensive Cancer Network (NCCN) Clinical Practice Guidelines in Oncology.

•Ziihera added to European Society for Medical Oncology (ESMO) (Free ESMO Whitepaper) Clinical Practice Guidelines for Biliary Tract Cancers.

Key Pipeline Highlights
Zanidatamab:
•In 4Q24, announced U.S. FDA granted accelerated approval of Ziihera (zanidatamab-hrii) for the treatment of adults with previously treated, unresectable or metastatic HER2-positive (IHC 3+) biliary tract cancer (BTC).
•The pivotal HERIZON-GEA-01 trial, evaluating zanidatamab in 1L gastroesophageal adenocarcinoma (GEA), is expected to read out in 2H25 based on an updated assessment of progression events. Recruitment for the trial remains on track.
•Data presented at the San Antonio Breast Cancer Symposium 2024 continued to underscore zanidatamab’s potential for patients previously treated with trastuzumab deruxtecan (T-DXd) and showcased the advancement of our clinical program in breast cancer.
•The Phase 3 EmpowHER-BC-303 trial to evaluate zanidatamab plus chemotherapy or trastuzumab plus chemotherapy in patients with HER2-positive breast cancer whose disease has progressed on previous T-DXd treatment continues to enroll patients.
•First patient enrolled in the Phase 2 pan-tumor trial to evaluate HER2-positive solid tumors.

Financial Highlights
Three Months Ended
December 31, Year Ended
December 31,
(In thousands, except per share amounts) 2024 2023 2024 2023
Total revenues $ 1,088,173 $ 1,011,935 $ 4,068,950 $ 3,834,204
GAAP net income $ 191,115 $ 94,154 $ 560,120 $ 414,832
Non-GAAP adjusted net income $ 405,863 $ 345,286 $ 1,369,729 $ 1,295,824
GAAP earnings per share $ 3.11 $ 1.42 $ 8.65 $ 6.10
Non-GAAP adjusted EPS $ 6.60 $ 5.02 $ 20.90 $ 18.29

GAAP net income for 2024 was $560.1 million, or $8.65 per diluted share, compared to $414.8 million, or $6.10 per diluted share, for 2023. GAAP net income for 4Q24 was $191.1 million, or $3.11 per diluted share, compared to a GAAP net income of $94.2 million, or $1.42 per diluted share, for 4Q23.
Non-GAAP adjusted net income for 2024 was $1,369.7 million, or $20.90 per diluted share, compared to $1,295.8 million, or $18.29 per diluted share, for 2023. Non-GAAP adjusted net income for 4Q24 was $405.9 million, or $6.60 per diluted share, compared to $345.3 million, or $5.02 per diluted share, for 4Q23.
Reconciliations of applicable GAAP reported to non-GAAP adjusted information are included at the end of this press release.

Total Revenues
Three Months Ended
December 31, Year Ended
December 31,
(In thousands) 2024 2023 2024 2023
Xywav $ 400,964 $ 337,019 $ 1,473,202 $ 1,272,977
Xyrem 49,290 106,721 233,816 569,730
Epidiolex/Epidyolex 275,047 240,622 972,423 845,468
Sativex 5,173 5,137 18,877 19,668
Total Neuroscience 730,474 689,499 2,698,318 2,707,843
Rylaze/Enrylaze 101,487 101,747 410,846 394,226
Zepzelca 78,328 74,010 320,318 289,533
Defitelio/defibrotide 57,650 51,083 216,565 184,000
Vyxeos 53,247 46,912 162,595 147,495
Ziihera 1,051 — 1,051 —
Total Oncology 291,763 273,752 1,111,375 1,015,254
Other 2,974 4,088 11,471 13,846
Product sales, net 1,025,211 967,339 3,821,164 3,736,943
High-sodium oxybate AG royalty revenue 55,307 39,387 217,575 75,918
Other royalty and contract revenues 7,655 5,209 30,211 21,343
Total revenues $ 1,088,173 $ 1,011,935 $ 4,068,950 $ 3,834,204

Total revenues increased 6% in 2024 and 8% in 4Q24 compared to the same periods in 2023.
Total neuroscience revenue, including high-sodium oxybate AG royalty revenue, was $2,915.9 million in 2024, an increase of 5% compared to $2,783.8 million in 2023 and $785.8 million in 4Q24, an increase of 8% compared to $728.9 million in 4Q23. The increase in 2024 and 4Q24 was due to higher Xywav and Epidiolex/Epidyolex net product sales together with increased high-sodium oxybate AG royalty revenue, partially offset by decreased Xyrem net product sales.
Oncology net product sales were $1,111.4 million in 2024, an increase of 9% compared to $1,015.3 million in 2023 and $291.8 million in 4Q24, an increase of 7% compared to $273.8 million in 2023, and included higher net product sales from Defitelio/defibrotide which increased 18% in 2024 and 13% in 4Q24 and Zepzelca which increased 11% in 2024 and 6% in 4Q24. In 4Q24, Rylaze net product sales were negatively impacted due to an update to the COG pediatric treatment protocols for ALL, which impacts the timing of asparaginase administration.

Operating Expenses and Effective Tax Rate
Three Months Ended
December 31, Year Ended
December 31,
(In thousands, except percentages) 2024 2023 2024 2023
GAAP:
Cost of product sales $ 128,713 $ 107,243 $ 445,713 $ 435,577
Gross margin 87.4% 88.9% 88.3% 88.3%
Selling, general and administrative $ 369,287 $ 396,034 $ 1,385,294 $ 1,343,105
% of total revenues 33.9% 39.1% 34.0% 35.0%
Research and development $ 240,500 $ 216,608 $ 884,000 $ 849,658
% of total revenues 22.1% 21.4% 21.7% 22.2%
Acquired in-process research and development $ — $ 18,000 $ 10,000 $ 19,000
Income tax benefit1
$ (57,912) $ (33,089) $ (91,429) $ (119,912)
Effective tax rate 1
(43.5)% (53.8)% (19.4)% (40.2)%

_________________________
1.The GAAP income tax benefit increased in the three months ended December 31, 2024, compared to the same period in 2023, primarily due to patent box benefits recognized in the period and decreased in the year ended December 31, 2024, compared to the same period in 2023, primarily due to the change in income mix across our jurisdictions, partially offset by patent box benefits.

Three Months Ended
December 31, Year Ended
December 31,
(In thousands, except percentages) 2024 2023 2024 2023
Non-GAAP adjusted:
Cost of product sales $ 86,492 $ 71,238 $ 295,897 $ 269,079
Gross margin 91.6% 92.6% 92.3% 92.8%
Selling, general and administrative $ 323,167 $ 300,520 $ 1,226,724 $ 1,110,948
% of total revenues 29.7% 29.7% 30.1% 29.0%
Research and development $ 220,857 $ 201,107 $ 809,327 $ 784,811
% of total revenues 20.3% 19.9% 19.9% 20.5%
Acquired in-process research and development $ — $ 18,000 $ 10,000 $ 19,000
Income tax expense1
$ 308 $ 20,475 $ 131,307 $ 93,260
Effective tax rate1
0.1% 5.6% 8.7% 6.7%

_________________________
1.The non-GAAP income tax expense decreased in the three months ended December 31, 2024, compared to the same period in 2023, primarily due to patent box benefits recognized in the period and increased in the year ended December 31, 2024, compared to the same period in 2023, due to the change in income mix across our jurisdictions, partially offset by patent box benefits.

Changes in operating expenses in 2024 and 4Q24 over the prior year periods are primarily due to the following:
•Cost of product sales, on a GAAP and non-GAAP adjusted basis, increased in 2024 and 4Q24, compared to the same periods in 2023, primarily due to higher inventory provisions and changes in product mix. Cost of product sales, on a GAAP basis, included lower acquisition accounting inventory fair value step up expense in 2024 as compared to the previous period.
•Selling, general and administrative (SG&A) expenses, on a GAAP and non-GAAP adjusted basis, increased in 2024 compared to the same period in 2023, primarily due to higher compensation-related expenses, increased investment in sales and marketing and increased litigation costs, partially offset, on a GAAP basis, by costs related to impairment of facility assets and program terminations in 2023. SG&A expenses, on a GAAP basis, decreased in 4Q24 compared to the same period in 2023, primarily due to the impairment of facility assets in 4Q23, partially offset by higher compensation related expenses. SG&A expenses, on a non-GAAP adjusted basis, increased in 4Q24 primarily due to higher compensation-related expenses.
•Research and development (R&D) expenses, on a GAAP and non-GAAP adjusted basis, increased in 2024 and 4Q24, compared to the same period in 2023, primarily due to increased compensation related expenses and clinical study costs primarily related to zanidatamab, partially offset by reduced costs related to JZP150 and JZP385.
•Acquired in-process research and development (IPR&D) expense in 2024, on a GAAP and non-GAAP adjusted basis, related to an upfront payment made in connection with our asset purchase and collaboration agreement with Redx Pharma plc. Acquired IPR&D expense in 2023, on a GAAP and non-GAAP adjusted basis, primarily related to an upfront payment made in connection with our licensing and collaboration agreement with Autifony Therapeutics Limited.

Cash Flow and Balance Sheet
As of December 31, 2024, cash, cash equivalents and investments were $3.0 billion, and the outstanding principal balance of the Company’s long-term debt was $6.2 billion. In addition, the Company had undrawn borrowing capacity under a revolving credit facility of $885.0 million. For the year ended December 31, 2024, the Company generated $1.4 billion of cash from operations reflecting strong business performance and continued financial discipline. In January 2025, the Company made a voluntary prepayment of $750.0 million principal amount on the Term Loan B.

2025 Financial Guidance
Jazz Pharmaceutical’s full year 2025 financial guidance is as follows:

(In millions) Guidance
Total Revenues $4,150 – $4,400

(In millions, except per share amounts and percentages) GAAP Non-GAAP
Gross margin % 88%
92%1,6
SG&A expenses $1,404 – $1,483
$1,250 – $1,3102,6
R&D expenses $792 – $851
$720 – $7703,6
Effective tax rate (5)% – 10%
13% – 15%4,6
Net income $560 – $720
$1,400 – $1,5005,6
Net income per diluted share $9.15 – $11.50
$22.50 – $24.005,6
Weighted-average ordinary shares used in per share calculations 62 – 63 62 – 63

Conference Call Details
Jazz Pharmaceuticals will host an investor conference call and live audio webcast today at 4:30 p.m. ET (9:30 p.m. GMT) to provide a business and financial update and discuss its 2024 full year and 4Q24 results and 2025 guidance.
Audio webcast/conference call:
U.S. Dial-In Number: +1 800 715 9871
Ireland Dial-In Number: +353 1800 943 926
Additional global dial-in numbers are available here.
Passcode: 5080203

Interested parties may access the live audio webcast via the Investors section of the Jazz Pharmaceuticals website at www.jazzpharmaceuticals.com. To ensure a timely connection, it is recommended that participants register at least 15 minutes prior to the scheduled webcast.

A replay of the webcast will be available via the Investors section of the Jazz Pharmaceuticals website at www.jazzpharmaceuticals.com.