Jazz Pharmaceuticals, Inc.

First presentation of top-line efficacy and safety results from the Phase 4 DUET (Develop hypersomnia Understanding by Evaluating low-sodium oxybate Treatment) trial of adults with narcolepsy or idiopathic hypersomnia For U.S. media and investors only DUBLIN, Oct. 31, 2024 /PRNewswire/ -- Jazz Pharmaceuticals plc (Nasdaq: JAZZ) today announced that eight abstracts presenting data from across its sleep portfolio were featured at the 37th annual Psych Congress, held in Boston from October 29 through November 2, 2024. The data includes the top-line results of the Phase 4 DUET (Develop hypersomnia Understanding by Evaluating low-sodium oxybate Treatment) trial, evaluating the effectiveness of low-sodium oxybate on key sleep outcomes in adults with narcolepsy or idiopathic hypersomnia (IH). Notably, these DUET data are the first to show prospective improvements on excessive daytime sleepiness (EDS), as well as key polysomnography (PSG) outcomes of sleep disruption, among adults with narcolepsy treated with Xywav® (calcium, magnesium, potassium, and sodium oxybates) oral solution. Further, new DUET data evaluating nighttime Xywav treatment in adults with IH demonstrate clinical improvements on daytime symptoms, including sleep inertia measured by the Patient Global Impression of Change (PGIc). The DUET trial is a Phase 4, prospective, single-arm, open-label study to assess the effect of Xywav treatment on EDS, polysomnography parameters, and functional outcomes in adults with narcolepsy or IH. Observed adverse events were consistent with the known safety profile of Xywav, with the most common including nausea, dizziness and headache. "The new DUET data presented today demonstrate the impact of low-sodium Xywav treatment on key narcolepsy and idiopathic hypersomnia symptoms," said Logan Schneider, MD, adjunct clinical associate professor of sleep medicine, Stanford Sleep Center and Consultant Neurologist, Stanford/VA Alzheimer's Center. "These data build on our confidence that appropriate treatment can meaningfully impact the outcomes that matter to patients and their functioning." Presentation highlights include: Xywav DUET Narcolepsy Top-line Results (P166): Novel analysis of primary and key secondary outcomes in participants with narcolepsy show improvements in daytime and nighttime symptoms with Xywav treatment compared to baseline across daytime sleepiness and PSG-based measures of sleep disruption, including sleep stage shifts from deeper to lighter stages of sleep, time spent in deep sleep, and number of awakenings. Specifically, the statistically significant change (least square mean, standard error) from baseline on the Epworth Sleepiness Scale (ESS) was −7.7 (0.9), P<0.0001, while changes for total shifts from deeper to lighter stages of sleep, N3 sleep (deep sleep) duration in minutes, and number of awakenings were −13.1 (3.0), P<0.0001; 45.0 (8.8), P<0.0001; and −3.2 (0.9), P=0.0015, respectively (N=34 each). Xywav DUET IH Top-line Results (P165): First presentation of primary and key secondary outcomes in participants with IH show Xywav treatment resulted in improvements in EDS, measured by ESS and Idiopathic Hypersomnia Severity Scale (IHSS). Additionally, improvements were observed across PGIc measures of overall symptoms, with new data on sleep inertia measured within the PGIc. Statistically significant changes (least square mean, standard error) in ESS (N=40) and IHSS (N=36) from baseline to end of treatment were −8.4 (0.7), P<0.0001 and −15.5 (1.5), P<0.0001, respectively. Most participants reported improvement (very much, much, minimally) on the PGIc overall (94.6%; N=37) and PGIc sleep inertia inventory (81.1%; N=37). "These DUET data are the first to show Xywav's impact on polysomnography measures of nighttime awakenings, sleep stage shifts, and deep sleep for people living with narcolepsy, as well as improvements among adults with IH in key outcomes important for daily life," said Kelvin Tan, MBBCh, MRCPCH, chief medical affairs officer of Jazz Pharmaceuticals. "Jazz is committed to our leadership in sleep, as exemplified by our presentations at Psych Congress of the DUET trial data, which studied the effectiveness of low-sodium Xywav on symptoms of narcolepsy and IH by demonstrating improvements in measures which are key for patients to wake up more refreshed with improved wakefulness during the day." The Psych Congress 2024 presentations are available on-demand through the conference mobile application. Abstracts and posters will also be published on HMP Global's Psychiatry & Behavioral Health Learning Network 30-60 days after the event ends. A full list of Jazz presentations follows below: 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 an often 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 the only 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 whereas other high sodium oxybates have 1640 mg at the equivalent 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 at the recommended dose range of 6 g to 9 g/night. Xywav is the only oxybate therapy 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 Contraindications XYWAV is contraindicated in combination with sedative hypnotics or alcohol and in patients with succinic semialdehyde dehydrogenase deficiency. Warnings and Precautions Central Nervous System Depression The concurrent use of XYWAV with other CNS depressants, including but not limited to opioid analgesics, benzodiazepines, sedating antidepressants or antipsychotics, sedating anti-epileptic drugs, general anesthetics, muscle relaxants, and/or illicit CNS depressants, may increase the risk of respiratory depression, hypotension, profound sedation, syncope, and death. If use of these CNS depressants in combination with XYWAV is required, dose reduction or discontinuation of one or more CNS depressants (including XYWAV) should be considered. In addition, if short-term use of an opioid (eg, post- or perioperative) is required, interruption of treatment with XYWAV should be considered. After first initiating treatment and until certain that XYWAV does not affect them adversely (eg, impair judgment, thinking, or motor skills), caution patients against hazardous activities requiring complete mental alertness or motor coordination such as operating hazardous machinery, including automobiles or airplanes. Also caution patients against these hazardous activities for at least 6 hours after taking XYWAV. Patients should be queried about CNS depression-related events upon initiation of XYWAV therapy and periodically thereafter. Abuse and Misuse XYWAV is a Schedule Ill controlled substance. The active moiety of XYWAV is oxybate, also known as gamma-hydroxybutyrate (GHB), a Schedule I controlled substance. Abuse of illicit GHB, either alone or in combination with other CNS depressants, is associated with CNS adverse reactions, including seizure, respiratory depression, decreases in the level of consciousness, coma, and death. The rapid onset of sedation, coupled with the amnestic features of GHB particularly when combined with alcohol, has proven to be dangerous for the voluntary and involuntary user (eg, assault victim). Physicians should carefully evaluate patients for a history of drug abuse and follow such patients closely. XYWAV and XYREM REMS Because of the risks of central nervous system depression and abuse and misuse, XYWAV is available only through a restricted distribution program called the XYWAV and XYREM REMS. Notable requirements of the XYWAV and XYREM REMS include the following: Healthcare Providers who prescribe XYWAV are specially certified XYWAV will be dispensed only by the central pharmacy that is specially certified XYWAV will be dispensed and shipped only to patients who are enrolled in the XYWAV and XYREM REMS with documentation of safe use Further information is available at or 1-866-997-3688. Respiratory Depression and Sleep-Disordered Breathing XYWAV may impair respiratory drive, especially in patients with compromised respiratory function. In overdoses of oxybate and with illicit use of GHB, life-threatening respiratory depression has been reported. Increased apnea and reduced oxygenation may occur with XYWAV administration in adult and pediatric patients. A significant increase in the number of central apneas and clinically significant oxygen desaturation may occur in patients with obstructive sleep apnea treated with XYWAV. Prescribers should be aware that sleep-related breathing disorders tend to be more prevalent in obese patients, in men, in postmenopausal women not on hormone replacement therapy, and among patients with narcolepsy. Depression and Suicidality In Study 1, the randomized-withdrawal clinical trial in adult patients with narcolepsy (n=201), depression and depressed mood were reported in 3% and 4%, respectively, of patients treated with XYWAV. Two patients (1%) discontinued XYWAV because of depression. In most cases, no change in XYWAV treatment was required. In Study 2, the randomized-withdrawal clinical trial in adult patients with idiopathic hypersomnia (n=154), depression and depressed mood were reported in 1% and 3%, respectively, of patients treated with XYWAV. All patients continued XYWAV treatment. Two suicides and two attempted suicides occurred in adult clinical trials with oxybate (same active moiety as XYWAV). One patient experienced suicidal ideation and two patients reported depression in a pediatric clinical trial with oxybate. These events occurred in patients with and without previous histories of depressive disorders. The emergence of depression in patients treated with XYWAV requires careful and immediate evaluation. Monitor patients for the emergence of increased depressive symptoms and/or suicidality while taking XYWAV. Other Behavioral or Psychiatric Adverse Reactions In Study 1, confusion and anxiety occurred in 1% and 5% of patients with narcolepsy treated with XYWAV, respectively. One patient experienced visual hallucinations and confusion after ingesting approximately 9 grams of XYWAV. In Study 2, confusion and anxiety occurred in 3% and 16% of patients with idiopathic hypersomnia, respectively. One patient experienced visual hallucinations, which led to discontinuation of XYWAV. Other neuropsychiatric reactions reported with oxybate (same active moiety as XYWAV) in adult or pediatric clinical trials and in the postmarketing setting include hallucinations, paranoia, psychosis, aggression, agitation, confusion and anxiety. The emergence or increase in the occurrence of behavioral or psychiatric events in patients taking XYWAV should be carefully monitored. Parasomnias Parasomnias can occur in patients taking XYWAV. In Study 1 and Study 2, parasomnias, including sleepwalking, were reported in 6% and 5% of adult patients treated with XYWAV, respectively. In a clinical trial of XYREM (same active moiety as XYWAV) in adult patients with narcolepsy, five instances of sleepwalking with potential injury or significant injury were reported. Parasomnias, including sleepwalking, have been reported in a pediatric clinical trial with sodium oxybate (same active moiety as XYWAV) and in postmarketing experience with sodium oxybate. Episodes of sleepwalking should be fully evaluated and appropriate interventions considered. Most Common Adverse Reactions The most common adverse reactions (occurring in ≥5% of XYWAV-treated patients in adult clinical trials in either narcolepsy or IH) were nausea, headache, dizziness, anxiety, insomnia, decreased appetite, hyperhidrosis, vomiting, diarrhea, dry mouth, parasomnia, somnolence, fatigue, and tremor. In the pediatric clinical trial with XYREM (same active moiety as XYWAV) that included pediatric patients 7 to 17 years of age with narcolepsy, the most common adverse reactions (≥5%) were nausea (20%), enuresis (19%), vomiting (18%), headache (17%), weight decreased (13%), decreased appetite (9%), dizziness (8%), and sleepwalking (6%). The overall adverse reaction profile of XYREM in the pediatric clinical trial was similar to that seen in the adult clinical trial program. The safety profile in pediatric patients with XYWAV is expected to be similar to that of adult patients treated with XYWAV and to that of pediatric patients treated with XYREM. Additional Adverse Reactions Adverse reactions that occurred in 2-<5% of adult patients treated with XYWAV in the Open­ Label Titration and Stable Dose Periods of the randomized-withdrawal study in adult patients with narcolepsy with cataplexy (Study 1) were fatigue, dry mouth, depressed mood, enuresis, irritability, paresthesia, depression, tremor, somnolence, and muscle spasms. Adverse reactions occurring in 2-<5% of patients treated with XYWAV in the IH study include balance disorder, muscle spasms, fall, paresthesia, snoring, weight decreased, bruxism, confusional state, depressed mood, feeling drunk, and irritability. Adverse reactions that occurred in ≥2% of patients in clinical studies with oxybate (but not in Study 1) and which may be relevant for XYWAV, were pain, feeling drunk, pain in extremity, cataplexy, disturbance in attention, sleep paralysis, and disorientation. Discontinuation: In Study 1, 9 of 201 patients (4%) reported adverse reactions that led to withdrawal from the study (anxiety, decreased appetite, depressed mood, depression, fatigue, headache, irritability, nausea, pain in extremity, parasomnia, somnolence, and vomiting). The most common adverse reaction leading to discontinuation was nausea (1.5%). In Study 2, 17 of 154 (11%) patients across all study periods (excluding placebo during the DB RWP) (up to 42 weeks) reported adverse reactions that led to withdrawal from the study (anxiety, nausea, insomnia, vomiting, fatigue, feeling abnormal, fall, decreased appetite, dizziness, paresthesia, tremor, parasomnia, confusional state, hallucination visual, and irritability). The most common adverse reaction leading to discontinuation was anxiety (3.2%). In Study 1 and Study 2, the majority of adverse reactions leading to discontinuation began during the first few weeks of treatment. In the pediatric clinical trial with XYREM (same active moiety as XYWAV), 7 of 104 patients reported adverse reactions that led to withdrawal from the study (hallucination, tactile; suicidal ideation; weight decreased; sleep apnea syndrome; affect lability; anger, anxiety, depression; and headache). Drug Interactions XYWAV is contraindicated in combination with alcohol or sedative hypnotics. Use of other CNS depressants may potentiate the CNS-depressant effects of XYWAV. Concomitant use of sodium oxybate with divalproex sodium results in an increase in systemic exposure to GHB, which was shown to cause a greater impairment on some tests of attention and working memory in a clinical study. A similar increase in exposure is expected with concomitant use of XYWAV and divalproex sodium; therefore, an initial dose reduction of XYWAV is recommended when used concomitantly with divalproex sodium. Prescribers are advised to monitor patient response closely and adjust dose accordingly if concomitant use of XYWAV and divalproex sodium is warranted. Pregnancy and Lactation There are no adequate data on the developmental risk associated with the use of XYWAV or sodium oxybate in pregnant women. XYWAV should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. GHB is excreted in human milk after oral administration of sodium oxybate. There is insufficient information on the risk to a breastfed infant, and there is insufficient information on milk production in nursing mothers. The developmental and health benefits of breastfeeding should be considered along with the mother's clinical need for XYWAV and any potential adverse effects on the breastfed infant from XYWAV or from the underlying maternal condition. Pediatric Use The safety and effectiveness of XYWAV for the treatment of cataplexy or excessive daytime sleepiness in pediatric patients 7 years of age and older with narcolepsy have been established. XYWAV has not been studied in a pediatric clinical trial for narcolepsy or IH. Use of XYWAV in pediatric patients 7 years of age and older with narcolepsy is supported by evidence from an adequate and well­controlled study of sodium oxybate in pediatric patients 7 to 17 years of age, a study in adults showing a treatment effect of XYWAV similar to that observed with sodium oxybate, pharmacokinetic data of sodium oxybate from adult and pediatric patients, and pharmacokinetic data of XYWAV from healthy adult volunteers. Safety and effectiveness of XYWAV in pediatric patients below the age of 7 years with narcolepsy have not been established. Safety and effectiveness of XYWAV for the treatment of idiopathic hypersomnia in pediatric patients have not been established. Geriatric Use In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy. Hepatic Impairment The starting dose of XYWAV should be reduced in patients with liver impairment. Dosage Modification in Patients with Hepatic Impairment: The recommended starting dosage in patients with hepatic impairment is one-half of the original dosage per night, administered orally, divided into two doses. Dependence and Tolerance There have been case reports of withdrawal, ranging from mild to severe, following discontinuation of illicit use of GHB at frequent repeated doses (18 g to 250 g per day) in excess of the recommended dosage range. Signs and symptoms of GHB withdrawal following abrupt discontinuation included insomnia, restlessness, anxiety, psychosis, lethargy, nausea, tremor, sweating, muscle cramps, tachycardia, headache, dizziness, rebound fatigue and sleepiness, confusion, and, particularly in the case of severe withdrawal, visual hallucinations, agitation, and delirium. These symptoms generally abated in 3 to 14 days. In cases of severe withdrawal, hospitalization may be required. In the clinical trial experience with XYREM in narcolepsy/cataplexy patients at recommended doses, two patients reported anxiety and one reported insomnia following abrupt discontinuation at the termination of the clinical trial; in the two patients with anxiety, the frequency of cataplexy had increased markedly at the same time. In the XYWAV clinical trial in adult narcolepsy/cataplexy patients at recommended doses, one patient reported insomnia following abrupt discontinuation of XYWAV. In the XYWAV clinical trial in adult idiopathic hypersomnia patients at recommended doses, six patients reported insomnia, two patients reported early insomnia, and one patient reported visual and auditory hallucinations following abrupt discontinuation of XYWAV. Tolerance to XYWAV has not been systematically studied in controlled clinical trials. There have been some case reports of symptoms of tolerance developing after illicit use at dosages far in excess of the recommended XYWAV dosage regimen. Important Safety Information for Xyrem Contraindications XYREM is contraindicated for use in combination with sedative hypnotics or alcohol and in patients with succinic semialdehyde dehydrogenase deficiency. Warnings and Precautions CNS Depression: Use caution when considering the concurrent use of Xyrem with other CNS depressants. If concurrent use is required, consider dose reduction or discontinuation of one or more CNS depressants (including XYREM). Consider interrupting XYREM treatment if short-term opioid use is required. After first initiating treatment and until certain that XYREM does not affect them adversely, caution patients against hazardous activities requiring complete mental alertness or motor coordination such as operating hazardous machinery, including automobiles or airplanes. Also caution patients against these hazardous activities for at least 6 hours after taking XYREM. Patients should be queried about CNS depression-related events upon initiation of XYREM therapy and periodically thereafter. Abuse and Misuse: XYREM is a Schedule III controlled substance. The rapid onset of sedation, coupled with the amnestic features of XYREM, particularly when combined with alcohol, has proven to be dangerous for the voluntary and involuntary user (eg, assault victim). Respiratory Depression and Sleep-Disordered Breathing: XYREM may impair respiratory drive, especially in patients with compromised respiratory function. In overdoses, life-threatening respiratory depression has been reported. Prescribers should be aware that increased central apneas and clinically relevant desaturation events have been observed with XYREM administration in adult and pediatric patients. Sleep-related breathing disorders tend to be more prevalent in obese patients, in men, in postmenopausal women not on hormone replacement therapy and among patients with narcolepsy. Depression and Suicidality: In adult clinical trials in patients with narcolepsy (n=781), depression was reported by 7% of XYREM-treated patients, with four patients (<1%) discontinuing because of depression. In the pediatric clinical trial in patients with narcolepsy (n=104), one patient experienced suicidal ideation and two patients reported depression while taking XYREM. Monitor patients for emergent or increased depression and/or suicidality, which require careful and immediate evaluation. Other Behavioral or Psychiatric Adverse Reactions: Monitor patients for impaired motor/cognitive function or the emergence of or increase in anxiety and/or confusion. The emergence or increase in the occurrence of behavioral or psychiatric events in adult and pediatric patients taking XYREM should be carefully monitored. Parasomnias: Episodes of sleepwalking should be fully evaluated and appropriate interventions considered. Five instances of significant injury or potential injury were associated with sleepwalking during a clinical trial of XYREM in adult patients with narcolepsy. Parasomnias, including sleepwalking, also have been reported in the pediatric clinical trial and in postmarketing experience with XYREM. Patients Sensitive to High Sodium Intake: XYREM has a high salt content. In patients sensitive to salt intake (eg, those with heart failure, hypertension, or renal impairment), consider the amount of daily sodium intake in each dose of XYREM. Most Common Adverse Reactions In three controlled adult clinical trials in patients with narcolepsy, the most common adverse reactions (incidence ≥5% and twice the rate of placebo) in XYREM-treated patients were nausea, dizziness, vomiting, somnolence, enuresis, and tremor. In the pediatric clinical trial in patients 7 years of age and older with narcolepsy, the most common adverse reactions (≥5%) were nausea (20%), enuresis (19%), vomiting (18%), headache (17%), weight decreased (13%), decreased appetite (9%), dizziness (8%) and sleepwalking (6%). About Jazz Pharmaceuticals Jazz Pharmaceuticals plc is a global biopharma company whose purpose is to innovate to transform the lives of patients and their families. We are dedicated to developing potentially 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. Contacts: Media: Kristin Bhavnani Head of Global Corporate Communications Jazz Pharmaceuticals plc [email protected] Ireland +353 1 637 2141 U.S. +1 215 867 4948 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 References: National Institute of Neurological Disorders and Stroke. Narcolepsy. . Accessed October 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 October 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. SOURCE Jazz Pharmaceuticals plc WANT YOUR COMPANY'S NEWS FEATURED ON PRNEWSWIRE.COM? 440k+ Newsrooms & Influencers 9k+ Digital Media Outlets 270k+ Journalists Opted In GET STARTED

DUBLIN, Oct. 31, 2024 (GLOBE NEWSWIRE) -- Avadel Pharmaceuticals plc (Nasdaq: AVDL), a biopharmaceutical company focused on transforming medicines to transform lives, announced that yesterday, the U.S. District Court for the District of Columbia (“Court”) ruled in favor of the Food and Drug Administration (“FDA”) in a suit brought by Jazz Pharmaceuticals Inc. (“Jazz”) under the Administrative Procedure Act regarding the FDA’s approval of LUMRYZTM, the first and only once-at-bedtime oxybate treatment for cataplexy or excessive daytime sleepiness in adults with narcolepsy. With this ruling, the approval of LUMRYZ is upheld based on the FDA’s determination that LUMRYZ is clinically superior to Jazz’s twice-nightly oxybate products. Following the FDA’s final approval and grant of Orphan Drug Exclusivity (“ODE”) to LUMRYZ in May 2023, Jazz filed a complaint against the FDA claiming that LUMRYZ’s approval was not in alignment with the Orphan Drug Act. Avadel CNS Pharmaceuticals, LLC (“Avadel CNS”) intervened to defend the FDA’s actions and successfully argued to uphold approval of LUMRYZ. “We are pleased with the Court’s ruling in favor of the FDA’s clinical superiority determination for LUMRYZ in conjunction with final approval for use in adults with narcolepsy. With the Court’s decision, LUMRYZ will continue to be available to the narcolepsy community and retain its Orphan Drug Exclusivity,” said Greg Divis, Chief Executive Officer at Avadel Pharmaceuticals. “Yesterday’s ruling further solidifies LUMRYZ’s unique once-at-bedtime dosing schedule as a major contribution to patient care and enables us to continue executing on our commercial launch and expanding LUMRYZ’s reach within the narcolepsy community.” About LUMRYZ™ (sodium oxybate) for extended-release oral suspension LUMRYZ is an extended-release sodium oxybate medication approved by the FDA on May 1, 2023, as the first and only once-at-bedtime treatment for cataplexy or excessive daytime sleepiness (EDS) in adults with narcolepsy. On October 16, 2024, LUMRYZ was additionally approved as a once-at-bedtime treatment for cataplexy or EDS in pediatric patients 7 years of age and older with narcolepsy. The FDA approval of LUMRYZ was supported by results from REST-ON, a randomized, double-blind, placebo-controlled, pivotal Phase 3 trial in adults with narcolepsy. LUMRYZ demonstrated statistically significant and clinically meaningful improvements in the three co-primary endpoints: EDS (MWT), clinicians’ overall assessment of patients’ functioning (CGI-I), and cataplexy attacks, for all three evaluated doses when compared to placebo. With its original approval in May 2023, the FDA granted 7 years of Orphan Drug Exclusivity to LUMRYZ for the treatment of cataplexy or EDS in adults with narcolepsy due to a finding of clinical superiority of LUMRYZ relative to currently available oxybate treatments. In particular, the FDA found that LUMRYZ makes a major contribution to patient care over currently available, twice-nightly oxybate products by providing a once-nightly dosing regimen that avoids nocturnal arousal to take a second dose. Similarly, with its pediatric approval in October of 2024, the FDA granted another 7 years of Orphan Drug Exclusivity to LUMRYZ for the treatment of cataplexy or EDS in patients 7 years and older with narcolepsy due to a finding of clinical superiority of LUMRYZ relative to currently available oxybate treatments. In particular, the FDA found there that LUMRYZ’s dosing makes a major contribution to patient care by providing an opportunity to minimize sleep fragmentation and disruption of sleep architecture in a way that is not possible for a patient on a twice-nightly dosing regimen of oxybate. About Avadel Pharmaceuticals plc Avadel Pharmaceuticals plc (Nasdaq: AVDL) is a biopharmaceutical company focused on transforming medicines to transform lives. Our approach includes applying innovative solutions to the development of medications that address the challenges patients face with current treatment options. Avadel’s commercial product, LUMRYZ, was approved by the U.S. Food & Drug Administration (FDA) as the first and only once-at-bedtime oxybate for the treatment of cataplexy or excessive daytime sleepiness (EDS) in patients 7 years and older with narcolepsy. For more information, please visit www.avadel.com. IMPORTANT SAFETY INFORMATION WARNING: Taking LUMRYZ™ (sodium oxybate) with other central nervous system (CNS) depressants, such as medicines used to make you 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 LUMRYZ (sodium oxybate) is a form of gamma hydroxybutyrate (GHB), a controlled substance. Abuse or misuse of illegal GHB alone or with other CNS depressants (drugs that cause changes in alertness or consciousness) have 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 have any of these serious side effects.Because of these risks, LUMRYZ is available only by prescription and filled through certified pharmacies in the LUMRYZ REMS. You must be enrolled in the LUMRYZ REMS to receive LUMRYZ. Further information is available at www.LUMRYZREMS.com or by calling 1-877-453-1029. INDICATIONSLUMRYZ (sodium oxybate) for extended-release oral suspension is a prescription medicine used to treat the following symptoms in patients 7 years of age and older with narcolepsy: sudden onset of weak or paralyzed muscles (cataplexy)excessive daytime sleepiness (EDS) Do not take LUMRYZ 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 LUMRYZ in a safe place to prevent abuse and misuse. Selling or giving away LUMRYZ may harm others and is against the law. Tell your doctor if you or your child have ever abused or been dependent on alcohol, prescription medicines or street drugs. Anyone who takes LUMRYZ 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 six (6) hours after taking LUMRYZ. Those activities should not be done until you know how LUMRYZ affects you. Falling asleep quickly, including while standing or while getting up from the bed, has led to falls with injuries that have required some people to be hospitalized. LUMRYZ can cause serious side effects, including the following: Breathing problems, including slower breathing, trouble breathing and/or short periods of not breathing while sleeping (e.g., sleep apnea). People who already have breathing or lung problems have a higher chance of having breathing problems when they take LUMRYZ.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 and difficulty concentrating. 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 or your child have symptoms of mental health problems or a change in weight or appetite.Sleepwalking. Sleepwalking can cause injuries. Call your doctor if you or your child start sleepwalking. Tell your doctor if you or your child are on a salt-restricted diet or have high blood pressure, heart failure or kidney problems. LUMRYZ contains a lot of sodium (salt) and may not be right for you.The most common side effects of LUMRYZ in adults include nausea, dizziness, bedwetting, headache and vomiting. Your side effects may increase when you take higher doses of LUMRYZ. The most common side effects in children include nausea, bedwetting, vomiting, headache, decreased weight, decreased appetite, dizziness, and sleepwalking. LUMRYZ 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 LUMRYZ. For more information, ask your doctor or pharmacist. Call your doctor for medical advice about side effects. You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch, or call 1-800-FDA-1088. Please see full Prescribing Information, including BOXED Warning. Cautionary Disclosure Regarding Forward-Looking StatementsThis press release includes “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. These forward-looking statements relate to our future expectations, beliefs, plans, strategies, objectives, results, conditions, financial performance, prospects or other events. Such forward-looking statements include, but are not limited to, expectations regarding the potential benefits of the outcome of the litigation involving Jazz Pharmaceuticals Inc.; and the potential expansion and commercialization efforts for LUMRYZ. In some cases, forward-looking statements can be identified by the use of words such as “will,” “may,” “could,” “believe,” “expect,” “look forward,” “on track,” “guidance,” “anticipate,” “estimate,” “project,” “next steps” and similar expressions and the negatives thereof (if applicable). The Company’s forward-looking statements are based on estimates and assumptions that are made within the bounds of our knowledge of our business and operations and that we consider reasonable. However, the Company’s business and operations are subject to significant risks, and, as a result, there can be no assurance that actual results and the results of the company’s business and operations will not differ materially from the results contemplated in such forward-looking statements. Factors that could cause actual results to differ from expectations in the Company’s forward-looking statements include the risks and uncertainties described in the “Risk Factors” section of Part I, Item 1A of the Company’s Annual Report on Form 10-K for the year ended December 31, 2023, which was filed with the Securities and Exchange Commission (SEC) on February 29, 2024, and subsequent SEC filings. Forward-looking statements speak only as of the date they are made and are not guarantees of future performance. Accordingly, you should not place undue reliance on forward-looking statements. The Company does not undertake any obligation to publicly update or revise our forward-looking statements, except as required by law. Investor Contact:Courtney MogerleyPrecision AQCourtney.Mogerley@precisionAQ.com(212) 698-8687 Media Contact:Lesley StanleyReal Chemistrylestanley@realchemistry.com(609) 273-3162

Phase 2 updated results for zanidatamab in HER2-positive mGEA included a confirmed objective response rate (cORR) of 84%, duration of response (DoR) of 18.7 months, median progression-free survival (mPFS) of 15.2 months and a Kaplan-Meier–estimated overall survival (OS) of 59% at 30 months DUBLIN, Sept. 16, 2024 /PRNewswire/ -- Jazz Pharmaceuticals plc (Nasdaq: JAZZ) today announced updated data, including median progression-free survival (mPFS) and overall survival (OS) findings, from the Phase 2 trial of zanidatamab, an investigational dual HER2-targeted bispecific antibody, in combination with chemotherapy as first-line treatment for patients with HER2-expressing advanced or metastatic gastroesophageal adenocarcinoma (mGEA). Data from 41 patients with HER2-positive mGEA who were treated with zanidatamab in combination with physician's choice of chemotherapy treatment demonstrated a mPFS of 15.2 [95% CI: 9.5, 33.4] months. After a median duration of follow-up of 41.5 (range, 23.0-52.7) months, the median OS was not mature, a Kaplan-Meier–estimated 24-month OS was 65% [95% CI: 48.0, 78.0] and the 30-month overall survival was 59% [95% CI: 41.0, 73.0]. "Gastroesophageal adenocarcinoma (GEA) represents one of the most common tumor types worldwide; however, developing effective treatment options for GEA patients has been challenging," said Dr. Elena Elimova, lead trial investigator and a medical oncologist at Princess Margaret Cancer Centre, Toronto, Canada. "Despite recent advancements for patients, the sustained clinical antitumor activity seen in this trial demonstrates the potential for zanidatamab to address a significant unmet patient need in HER2-positive GEA." "The updated results from this Phase 2 trial reaffirm zanidatamab's potential as a foundational treatment for patients with HER2-positive mGEA and showcase the promise of this HER2-targeted bispecific antibody to treat HER2-expressing cancers," said Rob Iannone, M.D., M.S.C.E., executive vice president, global head of research and development, and chief medical officer of Jazz Pharmaceuticals. "We look forward to continuing to advance our broader clinical development program for zanidatamab in GEA, including the Phase 3 first-line clinical trial HERIZON-GEA-01 that is expected to read out in the second quarter of 2025, and other HER2-expressing solid tumors, with the goal of supporting more patients with HER2-positive cancers." Phase 2 mGEA Trial Results The data include efficacy and tolerability findings from an ongoing, open-label Phase 2 study (NCT03929666) evaluating zanidatamab in combination with chemotherapy as first-line treatment for patients with HER2-expressing mGEA, which comprises gastric, esophageal and gastroesophageal junction (GEJ) adenocarcinomas. Patients had not received prior HER2-targeted agents nor systemic treatment for mGEA. A total of 46 patients with HER2-expressing mGEA (41 patients with HER2-positive mGEA) were enrolled from 15 sites across the United States, Canada and South Korea, and patients were administered zanidatamab with physician's choice of chemotherapy treatment. Currently, chemotherapy-based regimens are the standard first-line combination therapy for 1L mGEA. The longer-term data (median duration of follow-up of 41.5 [range, 23.0-52.7] months) demonstrates the promising antitumor activity of zanidamatab combined with chemotherapy as a first-line therapy for HER2-positive mGEA. Treatment with zanidatamab resulted in a cORR of 84% [95% CI: 68.0, 94.0], an increase of 5% from the cORR previously reported, and one additional patient achieved a complete response for a total of four patients achieving complete response among 37-response evaluable patients. The median duration of response was 18.7 months [95% CI: 8.3-NE] with 10 patients having an ongoing response at the time of data cutoff. The mPFS was 15.2 [95% CI: 9.5, 33.4] months. The Kaplan-Meier–estimated 24-month OS was 65% [95% CI: 48.0, 78.0] with a 30-month overall survival of 59% [95% CI: 41.0, 73.0]. With additional follow-up, the safety and tolerability profile of zanidatamab plus chemotherapy remained manageable with no new safety signals identified. Diarrhea was the most common Grade 3-4 treatment-related adverse events (TRAEs) (35%); the incidence of Grade 3-4 diarrhea was <15% for patients treated after the implementation of mandated antidiarrheal prophylaxis. Treatment discontinuation due to TRAEs were infrequent, and there were no treatment-related deaths. These data were presented in a poster session entitled Zanidatamab + Chemotherapy for First-Line Treatment for HER2+ Advanced or Metastatic Gastroesophageal Adenocarcinoma (mGEA) during the European Society for Medical Oncology (ESMO) Annual Meeting taking place in Barcelona, Spain. The presentation is available to conference registrants on the ESMO conference website (Presentation Number 1423P). Jazz continues to enroll patients in the Phase 3 randomized clinical trial, HERIZON-GEA-01 (NCT05152147), evaluating zanidatamab in combination with chemotherapy plus or minus tislelizumab as a first-line treatment for HER2-expressing mGEA. This is an events-based trial; top-line data from this trial is expected to read out in the second quarter of 2025. Phase 2 Colorectal Cancer (CRC) Trial Results Presented as Mini-Oral at ESMO 2024 In addition to the mGEA trial presentation, a mini-oral was also presented at ESMO 2024 from another arm of the same Phase 2, open-label trial (NCT03929666) that includes a cohort of patients with metastatic CRC treated with first-line zanidatamab plus chemotherapy ± bevacizumab (bev). In 11 response-evaluable patients, there were 10 confirmed partial responses and 1 patient with stable disease as a best response. The cORR was 91% (95% CI: 58.7, 99.8) and median duration of response was not reached (2.9+,16.7+ months). All patients experienced TRAEs – Grade 3-4 TRAEs occurred in five (38%) patients, three (23%) of whom experienced diarrhea. No patients discontinued zanidatamab due to a TRAE and there were no treatment-related deaths. Zanidatamab plus chemotherapy ± bev demonstrated encouraging antitumor activity with a generally manageable safety profile as first-line treatment for patients with HER2-positive mCRC. About Zanidatamab Zanidatamab is an investigational dual HER2-targeted bispecific antibody that simultaneously binds to two distinct sites on HER2, known as biparatopic binding. This unique design and enhanced binding results in multiple mechanisms of action, including HER2 and HER3 signal blockade, removal of HER2 protein from the cell surface and enhanced immune effector functions, such as complement-dependent cytotoxicity (CDC), which leads to encouraging antitumor activity. Zanidatamab is being developed in multiple clinical trials as a targeted treatment option for patients with solid tumors that express HER2. Zanidatamab is being developed by Jazz and BeiGene, Ltd. (BeiGene) under license agreements from Zymeworks, which first developed the molecule. The U.S. Food and Drug Administration (FDA) has accepted and granted Priority Review of the Biologics License Application (BLA) for zanidatamab with a Prescription Drug User Fee Act (PDUFA) action date of November 29, 2024. Zanidatamab was also granted Breakthrough Therapy designation in patients with previously treated HER2 gene-amplified biliary tract cancers (BTC) and given two Fast Track designations: one as a single agent for refractory BTC and one in combination with standard of care chemotherapy for 1L gastroesophageal adenocarcinoma (GEA). Additionally, zanidatamab has received Orphan Drug designations from FDA for the treatment of BTC and GEA, as well as Orphan Drug designation from the European Medicines Agency for the treatment of BTC and gastric cancer. Zanidatamab was also granted Breakthrough Therapy designation from the Center for Drug Evaluation (CDE) in China. About Gastroesophageal Adenocarcinoma Gastroesophageal adenocarcinoma (GEA) is the fifth most common cancer worldwide, and approximately 20% of patients have HER2–positive disease.1,2,3 HER2–positive GEA has high morbidity and mortality, and patients are urgently in need of new treatment options. About Jazz Pharmaceuticals Jazz Pharmaceuticals plc (Nasdaq: JAZZ) is a global biopharma 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. Jazz Pharmaceuticals plc Caution Concerning Forward-Looking Statements This press release contains forward-looking statements, including, but not limited to, statements related to zanidatamab's potential as a foundational treatment for patients with HER2-positive mGEA, the promise of HER2-targeted bispecific antibodies to treat HER2-expressing cancers and zanidatamab's potential to address a significant unmet patient need, growing our portfolio of innovative oncology products and investigational therapies, advancing our broader clinical development program for zanidatamab, including expectations with respect to the timing of the GEA Phase 3 clinical trial read out and other statements that are not historical facts. These forward-looking statements are based on Jazz Pharmaceuticals' 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 pharmaceutical product development, and other risks and uncertainties affecting Jazz Pharmaceuticals and its development programs, including those described from time to time under the caption "Risk Factors" and elsewhere in Jazz Pharmaceuticals plc's Securities and Exchange Commission filings and reports (Commission File No. 001-33500), including Jazz Pharmaceuticals' 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 Jazz Pharmaceuticals. Other risks and uncertainties of which Jazz Pharmaceuticals is not currently aware may also affect Jazz Pharmaceuticals' forward-looking statements and may cause actual results and the timing of events to differ materially from those anticipated. The forward-looking statements herein are made only as of the date hereof or as of the dates indicated in the forward-looking statements, even if they are subsequently made available by Jazz Pharmaceuticals on its website or otherwise. Jazz Pharmaceuticals undertakes no obligation to update or supplement any forward-looking statements to reflect actual results, new information, future events, changes in its expectations or other circumstances that exist after the date as of which the forward-looking statements were made. Contacts: Jazz Media Contact: Kristin Bhavnani Head of Global Corporate Communications Jazz Pharmaceuticals plc [email protected] Ireland +353 1 637 2141 U.S. +1 215 867 4948 Jazz Investor Contact: 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 References: 1 Abrahao-Machado I.F., et al. HER2 testing in gastric cancer: An update WorldJGastroenterol. 2016;22(19):4619-4625. 2 Van Custem E., et al. HER2 screening data from ToGA: targeting HER2 in gastric and gastroesophageal junction cancer. Gastric Cancer. 2015;18(3):476-484. 3 Stroes, C.I., et al. A systematic review of HER2 blockade for the curative treatment of gastroesophageal adenocarcinoma: Successes achieved and opportunities ahead. CancerTreatRev. 2021;99:102249. SOURCE Jazz Pharmaceuticals plc WANT YOUR COMPANY'S NEWS FEATURED ON PRNEWSWIRE.COM? 440k+ Newsrooms & Influencers 9k+ Digital Media Outlets 270k+ Journalists Opted In GET STARTED