Sodium Oxybate/Potassium Oxybate/Calcium Oxybate/Magnesium Oxybate

– 15% year-over-year revenue increase from combined key growth drivers: Xywav®, Epidiolex® and Rylaze® – – Oncology revenues grew 10% year-over-year – – Zanidatamab granted Priority Review by U.S. FDA for 2L BTC; PDUFA date of November 29, 2024 – – Near-term, late-stage pipeline catalysts anticipated through 2025 – – Narrowing 2024 total revenue guidance to $4.0 to $4.1 billion – – Affirming GAAP and non-GAAP adjusted net income guidance – DUBLIN, July 31, 2024 /PRNewswire/ -- Jazz Pharmaceuticals plc (Nasdaq: JAZZ) today announced financial results for the second quarter of 2024 and updated guidance for 2024. "Jazz's record revenues of over $1 billion in the second quarter were driven by strong execution and increased demand for our key growth drivers, Xywav, Epidiolex and Rylaze. Our launch preparations are well underway for zanidatamab, which was recently granted Priority Review in BTC, and we are pleased to have initiated the Phase 3 EmpowHER trial in HER2-positive breast cancer in patients whose disease has progressed after T-DXd treatment," said Bruce Cozadd, chairman and chief executive officer, Jazz Pharmaceuticals. "Based on projections for the remainder of the year, we are narrowing and maintaining the mid-point of our Neuroscience guidance and lowering our Oncology guidance. Importantly, our Oncology guidance still includes double-digit growth at the mid-point and we continue to expect double-digit growth from our combined key growth drivers in 2024." Key Highlights Key growth drivers: Xywav net product sales grew 13% year-over-year. Epidiolex/Epidyolex® net product sales grew 22% year-over-year. Rylaze/Enrylaze® net product sales grew 6% year-over-year. Zanidatamab: Granted Priority Review by U.S. FDA for 2L BTC; MAA validated by EMA. Initiated Phase 3 EmpowHER trial in late-line HER2+ breast cancer. Near-term, late-stage pipeline catalysts anticipated: Top-line data from Epidyolex Phase 3 trial in Japan in 2H24. Top-line data from Zepzelca® 1L SCLC Phase 3 trial by the end of 2024. Top-line PFS data from zanidatamab in Phase 3 1L GEA estimated to be 2Q25. 2024 Financial Guidance: Narrowing 2024 total revenue guidance range to $4.0 to $4.1 billion. Narrowing Neuroscience guidance to $2.825 to $2.925 billion. Lowering Oncology guidance to $1.10 to $1.15 billion. Affirming GAAP net income guidance of $385 to $530 million and non-GAAP adjusted net income guidance of $1.275 to $1.350 billion.1 Raising GAAP EPS guidance range by approximately $1.00 to $6.00 to $8.00 and non-GAAP EPS guidance to $19.20 to $20.30.1 Vision 2025: The Company is no longer providing the Vision 2025 metrics; however, the priorities highlighted in Vision 2025 remain the same: Achieving commercial excellence to drive a growing and diversified revenue base; Reaching more patients and creating value for shareholders by investing in our business and pipeline, including through corporate development; and Maintaining disciplined capital allocation to generate long-term sustainable growth and value. Business Updates Key Commercial Products Xywav (calcium, magnesium, potassium, and sodium oxybates) oral solution: Xywav net product sales were $368.5 million in 2Q24, an increase of 13% compared to the same period in 2023. There were approximately 13,225 active Xywav patients exiting 2Q24 comprised of: Approximately 9,925 narcolepsy patients. Approximately 3,300 idiopathic hypersomnia (IH) patients, with 250 net patient adds. As the only low-sodium oxybate and the only therapy approved to treat IH, expect Xywav to remain the oxybate of choice. Expert recommendations for optimizing flexible and individualized dosing regimens of low-sodium Xywav in narcolepsy and IH were published in Neurology and Therapy. Nearly 90% of HCPs surveyed felt the ability to adjust Xywav dosing to accommodate routine changes was important or very important and had a positive impact on their ability to provide care. Data presented at SLEEP 2024 included two late-breaking posters assessing the burden experienced by patients with IH. One poster demonstrated substantial comorbidity and health-related quality-of-life burdens for IH patients. Another poster reported greater economic burden, including work productivity impairment, compared to people living without IH. Xyrem® (sodium oxybate) oral solution and high-sodium oxybate authorized generic (AG) royalties: Xyrem net product sales were $62.2 million in 2Q24, a decrease of 61% compared to the same period in 2023. Royalties from high-sodium oxybate AGs were $54.2 million in 2Q24, an increase of $48.7 million compared to the same period in 2023. The Company expects high-sodium oxybate AG royalty revenue to exceed $200 million in 2024. Epidiolex/ Epidyolex (cannabidiol): Epidiolex/Epidyolex net product sales were $247.1 million in 2Q24, an increase of 22% compared to the same period in 2023. Outside of the U.S., Epidyolex is approved in more than 35 countries with additional launches and reimbursements anticipated through the end of 2024. A plain language summary of the BECOME survey results was published in Future Neurology. In addition to reporting an 85% reduction in the frequency of seizures, caregivers also reported improvements in non-seizure benefits such as cognitive, emotional and social functioning. Retrospective review of the validated REST-LGS questionnaire was evaluated in a real-world setting and the majority of patients who had not been previously diagnosed with Lennox-Gastaut syndrome (LGS) were identified, highlighting the potential of the screening tool to identify patients with LGS who may benefit from further diagnostic evaluation. Rylaze/ Enrylaze (asparaginase erwinia chrysanthemi (recombinant)-rywn): Rylaze/Enrylaze net product sales were $107.8 million in 2Q24, an increase of 6% compared to the same period in 2023. Zepzelca (lurbinectedin): Zepzelca net product sales were $81.0 million in 2Q24, an increase of 15% compared to the same period in 2023. Enrollment in the Phase 3 trial evaluating first-line (1L) use of Zepzelca in combination with Tecentriq ® (atezolizumab) in small cell lung cancer (SCLC), in partnership with Roche, was completed in 1Q24. The Company expects top-line progression-free survival (PFS) data readout by the end of 2024. Key Pipeline Highlights Zanidatamab: In 2Q24, the U.S. FDA accepted and granted Priority Review of the Biologics License Application for zanidatamab with a target action date of November 29, 2024. If approved, zanidatamab would be the first HER2-targeted treatment specifically approved for biliary tract cancer (BTC) in the U.S. A confirmatory trial in 1L metastatic BTC is ongoing. The European Medicines Agency (EMA) validated the marketing authorization application (MAA) for zanidatamab in second-line (2L) BTC. Updated zanidatamab data from the HERIZON-BTC-01 trial were presented at the ASCO Annual Meeting 2024, demonstrating a confirmed objective response rate was maintained at 41.3%, median duration of response increased by approximately two months to 14.9 months compared to findings reported in 2023, and a median overall survival of 15.5 months in all patients with HER2+ BTC and 18.1 months in patients with immunohistochemistry (IHC) 3+ tumors. The pivotal HERIZON-GEA-01 trial, evaluating zanidatamab in 1L gastroesophageal adenocarcinoma (GEA), is ongoing and enrollment remains on track. Based on an updated blinded assessment of progression events, the Company estimates top-line PFS data will be available in 2Q25. The Company continues to track events in the trial relative to the initial protocol assumptions. The Company initiated 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 trastuzumab deruxtecan (T-DXd) treatment. Suvecaltamide (JZP385): Announced top-line results from the Phase 2b trial of suvecaltamide in essential tremor did not achieve statistical significance. The improvement in placebo from baseline to week 12 exceeded the Company's expectations and was higher than what was observed for placebo in the prior T-CALM trial of suvecaltamide. A Phase 2 trial in patients with Parkinson's disease tremor (PDT) is ongoing, with results expected 1Q25. The Company awaits results from the PDT trial to determine next steps, if any, for the program. JZP441: Pending input from FDA, the Company is planning to initiate a Phase 1b trial of JZP441 in type 1 narcolepsy patients in 2H24. Expect this trial will further the Company's understanding of JZP441 and more broadly orexin agonism, providing key learnings that could inform future development efforts. Share Repurchases of Approximately $161 Million and New $500 Million Authorization The Company resumed repurchases of its ordinary shares on the open market in the second quarter of 2024 as part of the Company's previously authorized and announced share repurchase program. Under this share repurchase program, the Company was authorized to repurchase its ordinary shares for up to an aggregate purchase price of $1.5 billion, exclusive of any brokerage commissions. As of June 30, 2024, a nominal amount remained outstanding under this authorization, reflecting the purchase of shares worth approximately $161 million during the second quarter of 2024. The remaining amount will be utilized under the newly authorized repurchase program described below. On July 25, 2024, the Board of Directors authorized a new share repurchase program with no expiration date pursuant to which the Company may repurchase its ordinary shares for up to an aggregate purchase price of $500 million, exclusive of any brokerage commissions. The timing and amount of repurchases under the program will depend on a variety of factors, including the amount and timing of corporate development transactions, repayment of debt, restrictions under the Company's credit agreement, corporate and regulatory requirements, market conditions and the price of the Company's ordinary shares. Term Loan B Repricing The Company completed a repricing of the approximately $2.7 billion outstanding balance of its U.S. dollar term loans under its credit facility. The applicable margin above the Term Secured Overnight Financing Rate was reduced by 75 basis points (from 300 basis points to 225 basis points) and the credit spread adjustment of approximately 11 basis points has also been removed, resulting in anticipated interest savings of approximately $23 million on an annualized basis. All other terms are substantially unchanged. Irrevocable Election of Settlement Method for the 2.000% Exchangeable Senior Notes due 2026 Jazz Investments I Limited (the "Issuer"), a subsidiary of Jazz Pharmaceuticals, announced that it provided written notice to the exchange agent, the trustee and the holders of its 2.000% Exchangeable Senior Notes due 2026 (the "2026 notes") that it has irrevocably elected to fix the settlement method for exchanges of the 2026 notes to combination settlement with a specified cash amount equal to or in excess of $1,000. As a result, an exchanging holder will receive (i) up to $1,000 in cash per $1,000 principal amount of 2026 notes exchanged and (ii) cash, ordinary shares, or any combination thereof, at the Issuer's election, in respect of the remainder, if any, of its exchange obligation in excess of $1,000 per $1,000 principal amount of 2026 notes exchanged. Financial Highlights GAAP net income for 2Q24 was $168.6 million, or $2.49 per diluted share, compared to $104.4 million, or $1.52 per diluted share, for 2Q23. Non-GAAP adjusted net income for 2Q24 was $364.7 million, or $5.30 per diluted share, compared to $325.1 million, or $4.51 per diluted share, for 2Q23. Reconciliations of applicable GAAP reported to non-GAAP adjusted information are included at the end of this press release. Total Revenues Total revenues increased 7% in 2Q24 compared to the same period in 2023. Total neuroscience revenue, including high-sodium oxybate AG royalty revenue, was $738.3 million in 2Q24, an increase of 6% compared to $696.9 million in 2Q23, primarily due to increased high-sodium oxybate AG royalty revenue and increased Epidiolex/Epidyolex and Xywav net product sales, partially offset by decreased Xyrem revenues. Oncology net product sales were $277.3 million in 2Q24, an increase of 10% compared to the same period in 2023, and included higher net product sales from Zepzelca and Rylaze/Enrylaze, which increased 15% and 6% to $81.0 million and $107.8 million, respectively. Operating Expenses and Effective Tax Rate Changes in operating expenses in 2Q24 over the prior year period are primarily due to the following: Cost of product sales on a GAAP basis increased in 2Q24 compared to the same period in 2023 due to higher acquisition accounting inventory fair value step-up expense and changes in product mix. Cost of product sales on a non-GAAP adjusted basis increased in 2Q24 compared to the same period in 2023, due to changes in product mix. Selling, general and administrative (SG&A) expenses on a GAAP basis decreased in 2Q24 compared to the same period in 2023 primarily due to costs related to program terminations incurred in 2Q23. SG&A expenses on a GAAP and on a non-GAAP adjusted basis included increased investment in our priority programs in 2Q24 as compared to the same period in 2023. Research and development (R&D) expenses on a GAAP and on a non-GAAP adjusted basis increased in 2Q24 compared to the same period in 2023 primarily due to higher costs related to zanidatamab, as well as our other key pipeline programs. Cash Flow and Balance Sheet As of June 30, 2024, cash, cash equivalents and investments were $2.0 billion, and the outstanding principal balance of the Company's long-term debt was $5.8 billion. In addition, the Company had undrawn borrowing capacity under a revolving credit facility of $500.0 million. For the six months ended June 30, 2024, the Company generated $598.6 million of cash from operations reflecting strong business performance and continued financial discipline. 2024 Financial Guidance The Company is updating its full year 2024 financial guidance as follows: 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. IST) to provide a business and financial update and discuss its 2024 second quarter results. 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: 9124647 Interested parties may access the live audio webcast via the Investors section of the Jazz Pharmaceuticals website at . 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 . About Jazz Pharmaceuticals Jazz Pharmaceuticals plc (NASDAQ: JAZZ) is a global biopharmaceutical company whose purpose is to innovate to transform the lives of patients and their families. We are dedicated to developing life-changing medicines for people with serious diseases — often with limited or no therapeutic options. We have a diverse portfolio of marketed medicines, including leading therapies for sleep disorders and epilepsy, and a growing portfolio of cancer treatments. Our patient-focused and science-driven approach powers pioneering research and development advancements across our robust pipeline of innovative therapeutics in oncology and neuroscience. Jazz is headquartered in Dublin, Ireland with research and development laboratories, manufacturing facilities and employees in multiple countries committed to serving patients worldwide. Please visit for more information. Non-GAAP Financial Measures To supplement Jazz Pharmaceuticals' financial results and guidance presented in accordance with U.S. generally accepted accounting principles (GAAP), the Company uses certain non-GAAP (also referred to as adjusted or non-GAAP adjusted) financial measures in this press release and the accompanying tables. In particular, the Company presents non-GAAP adjusted net income (and the related per share measure) and its line-item components, as well as certain non-GAAP adjusted financial measures derived therefrom, including non-GAAP adjusted gross margin percentage and non-GAAP adjusted effective tax rate. Non-GAAP adjusted net income (and the related per share measure) and its line-item components exclude from GAAP reported net income (and the related per share measure) and its line-item components certain items, as detailed in the reconciliation tables that follow, and in the case of non-GAAP adjusted net income (and the related per share measure), adjust for the income tax effect of the non-GAAP adjustments. In this regard, the components of non-GAAP adjusted net income, including non-GAAP adjusted cost of product sales, SG&A expenses and R&D expenses, are income statement line items prepared on the same basis as, and therefore components of, the overall non-GAAP adjusted net income measure. The Company believes that each of these non-GAAP financial measures provides useful supplementary information to, and facilitates additional analysis by, investors and analysts and that each of these non-GAAP financial measures, when considered together with the Company's financial information prepared in accordance with GAAP, can enhance investors' and analysts' ability to meaningfully compare the Company's results from period to period, to its forward-looking guidance, and to identify operating trends in the Company's business. In addition, these non-GAAP financial measures are regularly used by investors and analysts to model and track the Company's financial performance. Jazz Pharmaceuticals' management also regularly uses these non-GAAP financial measures internally to understand, manage and evaluate the Company's business and to make operating decisions, and compensation of executives is based in part on certain of these non-GAAP financial measures. Because these non-GAAP financial measures are important internal measurements for Jazz Pharmaceuticals' management, the Company also believes that these non-GAAP financial measures are useful to investors and analysts since these measures allow for greater transparency with respect to key financial metrics the Company uses in assessing its own operating performance and making operating decisions. These non-GAAP financial measures are not meant to be considered in isolation or as a substitute for comparable GAAP measures; should be read in conjunction with the Company's consolidated financial statements prepared in accordance with GAAP; have no standardized meaning prescribed by GAAP; and are not prepared under any comprehensive set of accounting rules or principles in the reconciliation tables that follow. In addition, from time to time in the future there may be other items that the Company may exclude for purposes of its non-GAAP financial measures; and the Company has ceased, and may in the future cease, to exclude items that it has historically excluded for purposes of its non-GAAP financial measures. Likewise, the Company may determine to modify the nature of its adjustments to arrive at its non-GAAP financial measures. Because of the non-standardized definitions of non-GAAP financial measures, the non-GAAP financial measures as used by Jazz Pharmaceuticals in this press release and the accompanying tables have limits in their usefulness to investors and may be calculated differently from, and therefore may not be directly comparable to, similarly titled measures used by other companies. Caution Concerning Forward-Looking Statements This press release contains forward-looking statements, including, but not limited to, statements related to: the Company's growth prospects and future financial and operating results, including the Company's 2024 financial guidance and the Company's expectations related thereto and anticipated catalysts; expectations that Xywav will remain the oxybate of choice; expectations of high-sodium oxybate AG royalty revenue in 2024; the ability to generate long-term sustainable growth and value; the Company's advancement of pipeline programs and the timing of development activities, regulatory activities and submissions related thereto; planned or anticipated clinical trial events, including with respect to initiations, enrollment and data read-outs, and the anticipated timing thereof, including: expectations of near-term, late-stage pipeline catalysts through 2025, top-line data from a Phase 2 trial of suvecaltamide in PDT, top-line PFS data from a Phase 3 trial of zanidatamab in 1L GEA, top-line data from a Phase 3 trial of Epidyolex in DS, LGS and TSC in Japan and top-line PFS data from a Phase 3 trial of Zepzelca in 1L SCLC; and the Company's development, regulatory and commercialization strategy, including the Company's expectations to executing multiple Epidyolex launches through 2024; the Company's expectations with respect to its products and product candidates and the potential of the Company's products and product candidates and the potential regulatory path related thereto; the Company's capital allocation and corporate development strategy; the potential successful future development, manufacturing, regulatory and commercialization activities; the Company's ability to realize the commercial potential of its products; the Company's net product sales and goals for net product sales from new and acquired products; the Company's views and expectations relating to its patent portfolio, including with respect to expected patent protection, as well as expectations with respect to exclusivity; the Company's clinical trials confirming clinical benefit or enabling regulatory submissions; planned or anticipated regulatory submissions and filings, and the anticipated timing thereof; potential regulatory approvals; and other statements that are not historical facts. These forward-looking statements are based on the Company's current plans, objectives, estimates, expectations and intentions and inherently involve significant risks and uncertainties. Actual results and the timing of events could differ materially from those anticipated in such forward- looking statements as a result of these risks and uncertainties, which include, without limitation, risks and uncertainties associated with: maintaining or increasing sales of, and revenue from, Xywav, Rylaze and Epidiolex/Epidyolex and other marketed products; the introduction of new products into the U.S. market that compete with, or otherwise disrupt the market for the Company's products and product candidates; effectively launching and commercializing the Company's other products and product candidates; the successful completion of development and regulatory activities with respect to the Company's product candidates, obtaining and maintaining adequate coverage and reimbursement for the Company's products; the time-consuming and uncertain regulatory approval process, including the risk that the Company's current and/or planned regulatory submissions may not be submitted, accepted or approved by applicable regulatory authorities in a timely manner or at all; the costly and time-consuming pharmaceutical product development and the uncertainty of clinical success, including risks related to failure or delays in successfully initiating or completing clinical trials and assessing patients; global economic, financial, and healthcare system disruptions and the current and potential future negative impacts to the Company's business operations and financial results; geopolitical events, including the conflict between Russia and Ukraine and related sanctions; macroeconomic conditions, including global financial markets, rising interest rates and inflation and recent and potential banking disruptions; regulatory initiatives and changes in tax laws; market volatility; protecting and enhancing the Company's intellectual property rights and the Company's commercial success being dependent upon the Company obtaining, maintaining and defending intellectual property protection and exclusivity for its products and product candidates; delays or problems in the supply or manufacture of the Company's products and product candidates; complying with applicable U.S. and non-U.S. regulatory requirements, including those governing the research, development, manufacturing and distribution of controlled substances; government investigations, legal proceedings and other actions; identifying and consummating corporate development transactions, financing these transactions and successfully integrating acquired product candidates, products and businesses; the Company's ability to realize the anticipated benefits of its corporate development transactions and its collaborations and license agreements with third parties; the sufficiency of the Company's cash flows and capital resources; the Company's ability to achieve targeted or expected future financial performance and results and the uncertainty of future tax, accounting and other provisions and estimates; the Company's ability to meet its projected long-term goals and objectives, in the time periods that the Company anticipates, or at all, and the inherent uncertainty and significant judgments and assumptions underlying the Company's long-term goals and objectives; fluctuations in the market price and trading volume of the Company's ordinary shares; the timing and availability of alternative investment opportunities; and other risks and uncertainties affecting the Company, including those described from time to time under the caption "Risk Factors" and elsewhere in Jazz Pharmaceuticals' Securities and Exchange Commission filings and reports, including the Company's Annual Report on Form 10-K for the year ended December 31, 2023, as supplemented by our Quarterly Report on Form 10-Q for the quarter ended March 31, 2024, and future filings and reports by the Company. Other risks and uncertainties of which the Company is not currently aware may also affect the Company's forward-looking statements and may cause actual results and the timing of events to differ materially from those anticipated. Contacts: Investors: Andrea N. Flynn, Ph.D. Vice President, Head, Investor Relations Jazz Pharmaceuticals plc [email protected] Ireland +353 1 634 3211 U.S. +1 650 496 2717 Media: Kristin Bhavnani Head of Global Corporate Communications Jazz Pharmaceuticals plc [email protected] Ireland +353 1 637 2141 U.S. +1 215 867 4948 SOURCE Jazz Pharmaceuticals plc

Thirteen abstracts, including five late-breaking abstracts, underscore Jazz's ongoing commitment to advancing the understanding and treatment of serious sleep disorders Oral presentation of XYLO study design to assess systolic blood pressure changes in oxybate patients after switching to low-sodium Xywav® DUBLIN, May 30, 2024 /PRNewswire/ --Jazz Pharmaceuticals, Inc. (Nasdaq: JAZZ) today announced that thirteen abstracts, including five late-breaking abstracts, featuring new data from across its sleep medicine portfolio will be presented at SLEEP 2024, the 38th annual meeting of the Associated Professional Sleep Societies being held June 1-5, 2024, in Houston, Texas. Two abstracts were selected for oral presentations, including one that showcases the design elements from the Phase 4 XYLO study, which measures changes in 24-hour average systolic blood pressure after switching to low-sodium oxybate, Xywav® (calcium, magnesium, potassium, and sodium oxybates) oral solution from a high-sodium oxybate oral solution in patients with narcolepsy. An additional oral presentation describes a post-hoc analysis of Xywav efficacy and safety data in patients with narcolepsy with or without a medical history of psychiatric and/or neurologic comorbidities, which found that the efficacy and safety of Xywav was similar among the two groups. "For nearly two decades, we have been dedicated to advancing and delivering patient-centric solutions for those living with serious conditions, such as narcolepsy and idiopathic hypersomnia, which are chronic, debilitating neurologic sleep disorders that often require lifelong treatment," said Kelvin Tan, MB BCh, MRCPCH, senior vice president and chief medical officer of Jazz Pharmaceuticals. "I am proud of the range of data being presented at SLEEP 2024, which continues to demonstrate our commitment to the sleep community and the importance of addressing the needs of patients with these multi-symptom, and often underrecognized, sleep disorders." Additional highlights at SLEEP 2024 include: Two late-breaking poster presentations, which utilized the U.S. National Health and Wellness Survey data to assess the burden experienced by patients with idiopathic hypersomnia. One analysis examined the clinical and humanistic burden on U.S. adults with idiopathic hypersomnia, which demonstrates the substantial comorbidity and health-related quality-of-life burden that patients experience. The second analysis examined the healthcare resource utilization and medical costs for U.S. adults with idiopathic hypersomnia, which found patients reported significantly greater economic burden, including work productivity, compared to those without idiopathic hypersomnia. Four posters, including two late-breaking abstracts, showcase design elements and baseline characteristics of participants (enrolled as of February 5, 2024) in the Develop hypersomnia Understanding by Evaluating low-sodium oxybate Treatment (DUET) study. The DUET study is a Phase 4, prospective study to assess the effect of Xywav treatment on excessive daytime sleepiness, polysomnography parameters, and functional outcomes in adults with idiopathic hypersomnia or narcolepsy. A poster describing a post-hoc analysis of a Phase 3 trial assessing the efficacy and safety of Xywav in participants with narcolepsy with and without cardiovascular or cardiometabolic comorbidities. The analysis demonstrates similar efficacy and safety of Xywav in participants with narcolepsy with and without these comorbidities. The SLEEP 2024 abstracts are available online at the following link: . A full list of Jazz presentations follows: About Narcolepsy Narcolepsy is a chronic, debilitating neurologic sleep disorder characterized by excessive daytime sleepiness (the inability to stay awake and alert during the day resulting in the irrepressible need to sleep or unplanned lapses into sleep or drowsiness), or EDS, and an inability to regulate sleep-wake cycles normally.1 Patients with EDS due to narcolepsy experience sleep attacks and, despite fighting the urge to sleep, may unintentionally fall asleep for short periods.2,3 These sleep attacks may happen at inappropriate or potentially dangerous times such as during driving, cycling, eating, or mid-conversation.4 There is no cure for narcolepsy, therefore this EDS is lifelong and has a substantial negative impact on a person's ability to function psychologically, socially and professionally.5 Patients with narcolepsy are at increased risk for hypertension, cardiometabolic morbidity, stroke, myocardial infarction, heart failure, cardiac arrest, and death.6,7,8,9 As narcolepsy is a chronic condition that requires lifelong, nightly treatment, early access to an effective, low-sodium treatment can transform lives and reduce the impact of narcolepsy on a person's physical and mental health.5 About Idiopathic Hypersomnia Idiopathic hypersomnia is an often debilitating, neurologic sleep disorder that goes beyond chronic excessive daytime sleepiness.10,11,12,13 Idiopathic hypersomnia is a 24-hour sleep disorder, and symptoms may include a prolonged but non-restorative main (nighttime) sleep episode of more than 9 hours, or a sleep duration of 11 hours or longer over a 24-hour period; cognitive impairment; long and unrefreshing naps; brain fog, or the inability to focus for long periods of time; and severe sleep inertia (prolonged difficulty waking, with frequent reentries into sleep, confusion, and irritability).10,11,12,13,14 Although there are overlapping clinical features with narcolepsy, idiopathic hypersomnia is a condition with its own specific diagnostic criteria.13,15 Idiopathic hypersomnia is a debilitating illness that can significantly affect social, educational, and occupational functioning.16,17 In the U.S., approximately 37,000 adult patients have been diagnosed with idiopathic hypersomnia and are actively seeking healthcare.18 This low number of people may be due to the many difficulties in identifying and diagnosing idiopathic hypersomnia, as well as distinguishing it from other similar sleep disorders. It is estimated that far fewer patients are currently receiving pharmacological treatment for their idiopathic hypersomnia.18,19,20,21 About Xywav® (calcium, magnesium, potassium, and sodium oxybates) oral solution Xywav is a low-sodium oxybate approved by the U.S. Food and Drug Administration (FDA) for the treatment of cataplexy or excessive daytime sleepiness (EDS) in patients 7 years of age and older with narcolepsy. The FDA recognized seven years of Orphan Drug Exclusivity for Xywav for the treatment of cataplexy or EDS in patients 7 years of age and older with narcolepsy. The Office of Orphan Product Development (OOPD) at the FDA also published its summary of clinical superiority findings for Xywav for the treatment of cataplexy or EDS in patients 7 years of age and older with narcolepsy by means of greater cardiovascular safety compared to Xyrem® (sodium oxybate) oral solution. The decision of the OOPD is based on the FDA findings that Xywav provides a greatly reduced chronic sodium burden compared to Xyrem. Xywav has 131 mg of sodium at the maximum recommended nightly dose. Xywav is comprised of a unique composition of cations resulting in 92% less sodium, or a reduction of approximately 1,000 to 1,500 mg/night. Xywav is the only low-sodium oxybate therapy approved by the FDA, and the only oxybate that does not carry a warning in the label related to use in patients sensitive to high sodium intake. Xywav is also the first and only U.S. FDA-approved treatment option for idiopathic hypersomnia in adults. The FDA recognized seven years of Orphan Drug Exclusivity for Xywav for the treatment of idiopathic hypersomnia in adults. Xywav is the only FDA-approved treatment studied across the multiple symptoms of idiopathic hypersomnia, such as EDS, sleep inertia (severe grogginess or confusion when waking up), long sleep duration and cognitive impairment. Xywav can be administered as a twice- or once-nightly regimen for the treatment of idiopathic hypersomnia in adults. The exact mechanism of action of Xywav in the treatment of adults with idiopathic hypersomnia and of cataplexy and EDS in narcolepsy is unknown. It is hypothesized that the therapeutic effects of Xywav are mediated through GABAB actions during sleep at noradrenergic and dopaminergic neurons, as well as thalamocortical neurons.1 The U.S. Drug Enforcement Agency (DEA) has designated Xywav as a Schedule III medicine. The DEA defines Schedule III drugs, substances, or chemicals as drugs with a moderate to low potential for physical and psychological dependence.1,2 Because of the risks of central nervous system (CNS) depression and abuse and misuse, Xywav is available only through a restricted program under a Risk Evaluation and Mitigation Strategy (REMS) called the XYWAV and XYREM REMS. Important Safety Information for Xywav WARNING: Taking XYWAV with other central nervous system (CNS) depressants such as medicines used to make you or your child fall asleep, including opioid analgesics, benzodiazepines, sedating antidepressants, antipsychotics, sedating anti-epileptic medicines, general anesthetics, muscle relaxants, alcohol, or street drugs, may cause serious medical problems, including trouble breathing (respiratory depression), low blood pressure (hypotension), changes in alertness (drowsiness), fainting (syncope), and death. The active ingredient of XYWAV is a form of gamma hydroxybutyrate (GHB). Abuse or misuse of illegal GHB alone or with other drugs that cause changes in alertness (or consciousness) has caused serious side effects. These effects include seizures, trouble breathing (respiratory depression), changes in alertness (drowsiness), coma, and death. Call your doctor right away if you or your child has any of these serious side effects. Because of these risks, you have to go through the XYWAV and XYREM REMS to have your or your child's prescription for XYWAV filled. Do not take XYWAV if you take or your child takes other sleep medicines or sedatives (medicines that cause sleepiness), drinks alcohol, or has a rare problem called succinic semialdehyde dehydrogenase deficiency. Keep XYWAV in a safe place to prevent abuse and misuse. Selling or giving away XYWAV may harm others and is against the law. Tell your doctor if you have ever abused or been dependent on alcohol, prescription medicines, or street drugs. Anyone who takes XYWAV should not do anything that requires them to be fully awake or is dangerous, including driving a car, using heavy machinery, or flying an airplane, for at least 6 hours after taking XYWAV. Those activities should not be done until you know how XYWAV affects you or your child. XYWAV can cause serious side effects, including the following: Breathing problems, including slower breathing, trouble breathing, and/or short periods of not breathing while sleeping (sleep apnea). People who already have breathing or lung problems have a higher chance of having breathing problems when they use XYWAV. Mental health problems, including confusion, seeing or hearing things that are not real (hallucinations), unusual or disturbing thoughts (abnormal thinking), feeling anxious or upset, depression, thoughts of killing yourself or trying to kill yourself, increased tiredness, feelings of guilt or worthlessness, or difficulty concentrating. Tell your doctor if you or your child have or had depression or have tried to harm yourself or themselves. Call your doctor right away if you have or your child has symptoms of mental health problems or a change in weight or appetite. Sleepwalking. XYWAV can cause sleepwalking, which can cause injuries. Call your doctor if this occurs. The most common side effects of XYWAV in adults include nausea, headache, dizziness, anxiety, insomnia, decreased appetite, excessive sweating (hyperhidrosis), vomiting, diarrhea, dry mouth, parasomnia (a sleep disorder that can include abnormal dreams, abnormal rapid eye movement (REM) sleep, sleep paralysis, sleep talking, sleep terror, sleep-related eating disorder, sleep walking, and other abnormal sleep-related events), somnolence, fatigue, and tremor. The most common side effects of XYREM (which also contains oxybate like XYWAV) in children include nausea, bedwetting, vomiting, headache, weight decrease, decreased appetite, dizziness, and sleepwalking. XYWAV can cause physical dependence and craving for the medicine when it is not taken as directed. These are not all the possible side effects of XYWAV. You are encouraged to report negative side effects of prescription drugs to the FDA. Visit , or call 1-800-FDA-1088. Please see full Prescribing Information, including Boxed Warning, here: About Xyrem® (sodium oxybate) Xyrem oral solution, CIII, is a product approved by the U.S. Food and Drug Administration (FDA) for both cataplexy and excessive daytime sleepiness in narcolepsy in adult and pediatric patients ages 7 and older.3 Xyrem may only be dispensed to patients enrolled in the XYWAV and XYREM REMS. Xyrem was first approved in the U.S. in 2002, based on clinical trial data in adults. Important Safety Information for Xyrem WARNING: Taking XYREM with other CNS depressants such as medicines used to make you or your child fall asleep, including opioid analgesics, benzodiazepines, sedating antidepressants, antipsychotics, sedating anti-epileptic medicines, general anesthetics, muscle relaxants, alcohol, or street drugs, may cause serious medical problems, including trouble breathing (respiratory depression), low blood pressure (hypotension), changes in alertness (drowsiness), dizziness (syncope), and death. XYREM is a form of gamma hydroxybutyrate (GHB). Abuse or misuse of illegal GHB alone or with other drugs that cause changes in alertness (or consciousness) has caused serious side effects. These effects include seizures, trouble breathing (respiratory depression), changes in alertness (drowsiness), coma, and death. Because of these risks, you have to go through the XYWAV and XYREM REMS to have your or your child's prescription for XYREM filled. Do not take XYREM if you take or your child takes other sleep medicines or sedatives (medicines that cause sleepiness), drink alcohol, or have a rare problem called succinic semialdehyde dehydrogenase deficiency. Keep XYREM in a safe place to prevent abuse and misuse. Selling or giving away XYREM may harm others and is against the law. Tell your doctor if you have ever abused or been dependent on alcohol, prescription medicines, or street drugs. Anyone who takes XYREM should not do anything that requires them to be fully awake or is dangerous, including driving a car, using heavy machinery, or flying an airplane, for at least 6 hours after taking XYREM. Those activities should not be done until you know how XYREM affects you or your child. XYREM can cause serious side effects, including the following: Breathing problems, including slower breathing, trouble breathing, and/or short periods of not breathing while sleeping (sleep apnea). People who already have breathing or lung problems have a higher chance of having breathing problems when they use XYREM. Mental health problems, including confusion, seeing or hearing things that are not real (hallucinations), unusual or disturbing thoughts (abnormal thinking), feeling anxious or upset, depression, or thoughts of killing yourself or trying to kill yourself. Tell your doctor if you or your child have or had depression or have tried to harm yourself. Call your doctor right away if you have or your child has symptoms of mental health problems. Sleepwalking. Sleepwalking can cause injuries. Call your doctor if you or your child starts sleepwalking. Your doctor should check you or your child. Tell your doctor if you are or your child is on a salt-restricted diet or if you have or your child has high blood pressure, heart failure, or kidney problems. XYREM contains a lot of sodium (salt) and may not be right for you or your child. The most common side effects of XYREM include nausea, sleepiness, dizziness, vomiting, bedwetting, and tremor (in adults). In pediatric patients, headache, decreased appetite, and weight decrease were also common. Your side effects may increase when you take higher doses of XYREM. XYREM can cause physical dependence and craving for the medicine when it is not taken as directed. These are not all the possible side effects of XYREM. You are encouraged to report negative side effects of prescription drugs to the FDA. Visit , or call 1-800-FDA-1088. Please find full prescribing information here: About Jazz Pharmaceuticals plc Jazz Pharmaceuticals plc (Nasdaq: JAZZ) is a global biopharmaceutical company whose purpose is to innovate to transform the lives of patients and their families. We are dedicated to developing life-changing medicines for people with serious diseases — often with limited or no therapeutic options. We have a diverse portfolio of marketed medicines, including leading therapies for sleep disorders and epilepsy, and a growing portfolio of cancer treatments. Our patient-focused and science-driven approach powers pioneering research and development advancements across our robust pipeline of innovative therapeutics in oncology and neuroscience. Jazz is headquartered in Dublin, Ireland with research and development laboratories, manufacturing facilities and employees in multiple countries committed to serving patients worldwide. Please visit for more information. Investors: Andrea N. Flynn, Ph.D. Vice President, Head, Investor Relations Jazz Pharmaceuticals plc InvestorInfo@jazzpharma.com Ireland +353 1 634 3211 U.S. +1 650 496 2717 References: National Institute of Neurological Disorders and Stroke. Narcolepsy. . Accessed April 2024. Dauvilliers Y, Arnulf I, Mignot E. Narcolepsy with cataplexy. Lancet. 2007;369(9560):499-511. Colten HR, Altevogt BM, Institute of Medicine (US) Committee on Sleep Medicine and Research, eds. Sleep Disorders and Sleep Deprivation: An Unmet Public Health Problem. Washington (DC): National Academies Press (US); 2006. Peacock J, Benca RM. Narcolepsy: clinical features, co-morbidities & treatment. Indian Journal of Medical Research. 2010;131(2):338-349. National Health Service. Narcolepsy – Overview. 2019. . Accessed April 2024. Ben-Joseph RH, Saad R, Black J, et al. Cardiovascular burden of narcolepsy disease (CV-BOND): a real-world evidence study. Presented at: 2022 AAN Annual Meeting; April 2-7; Seattle, Washington. Poster 1203. Black J, Reaven NL, Funk SE, et al. Medical comorbidity in narcolepsy: findings from the Burden of Narcolepsy Disease (BOND) study. Sleep Med. 2017;33:13-18. Ohayon MM, Black J, Lai C, et al. Increased mortality in narcolepsy. Sleep. 2014;37(3):439-444. Ohayon MM. Narcolepsy is complicated by high medical and psychiatric comorbidities: a comparison with the general population. Sleep Med. 2013;14(6):488-492. Billiard M, Sonka K. Idiopathic hypersomnia. Sleep Med Rev. 2016;29:23-33. Trotti LM. Idiopathic hypersomnia. Sleep Med Clin. 2017;12(3):331-344. American Academy of Sleep Medicine. The International Classification of Sleep Disorders. Third Edition (ICSD-3). 2014. Khan Z, Trotti LM. Central disorders of hypersomnolence: focus on the narcolepsies and idiopathic hypersomnia. Chest. 2015 Jul;148(1):262-273. American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders. Fifth Edition (DSM-5). 2020. Jazz Pharmaceuticals, Inc, Data on file. JZP258-2020-047-29 Oct 2020. Evangelista E, Lopez R, Dauvilliers Y. Update on treatment for idiopathic hypersomnia. Expert Opin Investig Drugs. 2018;27(2):187-192. Ozaki A, Inoue Y, Hayashida K, et al. Quality of life in patients with narcolepsy with cataplexy, narcolepsy without cataplexy, and idiopathic hypersomnia without long sleep time: comparison between patients on psychostimulants, drug-naïve patients and the general Japanese population. Sleep Med. 2012;13(2):200-206. Jazz Pharmaceuticals, Inc, Data on file. Anderson KN, Pilsworth S, Sharples LD, et al. Idiopathic hypersomnia: a study of 77 cases. Sleep. 2007;30(10):1274-1281. Masri TJ, Gonzales CG, Kushida CA. Idiopathic hypersomnia. Sleep Med Clin. 2012;7(2):283-289. Trotti LM, Arnulf I. Idiopathic hypersomnia and other hypersomnia syndromes. Neurotherapeutics. 2021;18(1):20-31. Xywav (calcium, magnesium, potassium and sodium oxybates) oral solution. Prescribing Information. Palo Alto, CA: Jazz Pharmaceuticals, Inc. 2021. United States Drug Enforcement Agency. Drug Scheduling. . Accessed April 2024. Xyrem (sodium oxybate) oral solution. Prescribing Information. Palo Alto, CA: Jazz Pharmaceuticals, Inc. 2022. Company Codes: NASDAQ-NMS:JAZZ