β-lactamase

Presentations showcase diversity and momentum of Pfizer’s growing portfolio of vaccines and anti-infectives NEW YORK--(BUSINESS WIRE)-- Pfizer Inc. (NYSE: PFE) will present data across its infectious disease portfolio at the upcoming IDWeek 2023 held in Boston from October 11-15, 2023. Data from 45 abstracts will highlight the advances Pfizer is making in helping prevent and treat certain infectious diseases, particularly respiratory illnesses. This will include research featured in the IDWeek press program assessing the potential public health impact of ABRYSVO™ (Respiratory Syncytial Virus Vaccine), the company’s bivalent respiratory syncytial virus prefusion F (RSVpreF) vaccine for maternal immunization to protect infants against RSV illness. “The data at this year’s IDWeek highlight Pfizer’s commitment to transforming respiratory health, an area where we are proud to have delivered several innovative vaccine and treatment options over the last three years. We also continue to actively investigate infectious diseases more broadly, with a diverse pipeline of innovative vaccine and anti-infective treatment candidates,” said Annaliesa Anderson, Ph.D., Senior Vice President and Head, Vaccine Research and Development, Pfizer. “With our unique scientific capabilities and vaccine technology platforms, we are unwavering in the fight against the world’s most pressing disease challenges. We are excited to present our latest clinical results that support our growing infectious disease portfolio for the purpose of improving global health outcomes.” "The burden of respiratory illnesses on global public health is significant. It is particularly relevant as we enter the winter respiratory season in the Northern Hemisphere and once again face the threat of a possible tripledemic with influenza, RSV and COVID-19 co-circulating,” said Luis Jodar, Ph. D., Chief Medical Affairs Officer, Vaccines/Antivirals and Evidence Generation, Pfizer. “At IDWeek, we are pleased to share real-world data that will help educate healthcare professionals about the role Pfizer’s vaccines and treatments can play in helping mitigate the impact of certain respiratory infections during this critical period.” Pfizer's participation at IDWeek 2023 comprises breakthrough research from across the company’s robust infectious disease portfolio, covering RSV, COVID-19, pneumococcal disease, Lyme disease, meningococcal disease, multidrug-resistant gram-negative bacterial infections and more. Eight abstracts have been selected for oral presentation, including data on the successful coadministration of ABRYSVO with an influenza vaccine in older adults and results from the Phase 3 REVISIT study of Pfizer’s investigational antibiotic combination aztreonam-avibactam (ATM-AVI) candidate. Data highlighting the real-world effectiveness of Pfizer’s FDA-approved COVID-19 oral treatment for adults, PAXLOVID™ (nirmatrelvir tablets; ritonavir tablets), will also be featured at the meeting. A complete list of Pfizer-sponsored accepted abstracts is available here. Details for Pfizer-sponsored oral presentations are below: Title/ Abstract Number Presenting Name/Type Date/ Time EDT Location IDWEEK PRESS PROGRAM 1942 - Potential Public Health Impact of Bivalent Respiratory Syncytial Virus Prefusion F (RSVpreF) Maternal Vaccine for Prevention of RSV Among US Infants Amy W. Law, PharmD Oct 13 2:15 - 2:30 PM US ET 104 ABC ORAL PRESENTATIONS 1019 - Respiratory Syncytial Virus (RSV) Diagnoses in Hospitalized Patients Increases when Additional Specimen Types are Added to Nasopharyngeal Swab: Results from the RSV in Adults Multispecimen Study Elizabeth Begier, MD, MPH Oct 12 3:15 - 3:33 PM US ET 104 ABC 1941 - Coadministration of Bivalent Respiratory Syncytial Virus (RSVpreF) Vaccine with Influenza Vaccine in Older Adults James Baber, MBChB, MPH Oct 13 2:00 - 2:15 PM US ET 104 ABC 1944 - Tolerability and Safety of 20-Valent Pneumococcal Conjugate Vaccine (PCV20) in Infants and Older Children in Global Studies Kathleen McElwee, MD, MPH Oct 13 2:45 - 3:00 PM US ET 104 ABC 1948 - Rise of Candida auris Infections Worldwide and Trends on the Activity of Fosmanogepix and Comparator Agents Against C. auris Causing Invasive Infections Cecilia G. Carvalhaes, MD, PhD Oct 13 2:30 - 2:45 PM US ET 102 AB 1949 – Activity of Aztreonam-Avibactam Against Enterobacterales Resistant to Recently Approved Beta-Lactamase Inhibitor Combinations Collected Worldwide (ex-US: 2020-2022) Helio S. Sader, MD, PhD, FIDSA Oct 13 2:45 - 3:00 PM US ET 102 AB 2890 - Pharmacokinetics, Safety, and Efficacy of Ceftazidime-Avibactam in Neonates and Young Infants with Bacterial Infections: Results from a Phase 2a, 2-part, Open-label, Non-randomized, Multicenter Trial Richard D England, MD Oct 14 2:05 - 2:15 PM US ET 254 AB 2893 - Efficacy and Safety of Aztreonam-Avibactam for the Treatment of Serious Infections Due to Gram-Negative Bacteria, Including Metallo-β-Lactamase-Producing Pathogens: Phase 3 REVISIT Study Yehuda Carmeli, MD MPH Oct 14 2:35 - 2:45 PM US ET 254 AB INDICATIONS AND IMPORTANT SAFETY INFORMATION FOR ABRYSVO U.S. INDICATIONS ABRYSVOTM is a vaccine indicated for: the prevention of lower respiratory tract disease (LRTD) caused by respiratory syncytial virus (RSV) in people 60 years of age and older pregnant individuals at 32 through 36 weeks gestational age for the prevention of LRTD and severe LRTD caused by RSV in infants from birth through 6 months of age IMPORTANT SAFETY INFORMATION ABRYSVO should not be given to anyone with a history of severe allergic reaction (eg, anaphylaxis) to any of its components For pregnant individuals: to avoid the potential risks of preterm birth, ABRYSVO should be given during 32 through 36 weeks gestational age Fainting can happen after getting injectable vaccines, including ABRYSVO. Precautions should be taken to avoid falling and injury during fainting Adults with weakened immune systems, including those receiving medicines that suppress the immune system, may have a reduced immune response to ABRYSVO Vaccination with ABRYSVO may not protect all people In adults 60 years of age and older, the most common side effects (≥10%) were fatigue, headache, pain at the injection site, and muscle pain In pregnant individuals, the most common side effects (≥10%) were pain at the injection site, headache, muscle pain, nausea In clinical trials where ABRYSVO was compared to placebo, infants born to pregnant individuals experienced low birth weight (5.1% ABRYSVO versus 4.4% placebo) and jaundice (7.2% ABRYSVO versus 6.7% placebo View the full Prescribing Information. INDICATION, AUTHORIZED USE AND IMPORTANT SAFETY INFORMATION FOR PAXLOVID U.S. Indication PAXLOVID is indicated for the treatment of mild-to-moderate coronavirus disease 2019 (COVID-19) in adults who are at high risk for progression to severe COVID-19, including hospitalization or death. Limitations of Use PAXLOVID is not approved for use as pre-exposure or post-exposure prophylaxis for prevention of COVID-19. U.S. FDA Emergency Use Authorization Statement The U.S. Food and Drug Administration (FDA) has issued an Emergency Use Authorization (EUA) for the emergency use of PAXLOVID for the treatment of adults and pediatric patients (12 years of age and older weighing at least 40 kg) with mild to moderate coronavirus disease 2019 (COVID-19) and who are at high risk for progression to severe COVID-19, including hospitalization or death. PAXLOVID has not been approved, but has been authorized for emergency use by FDA under an EUA, for the treatment of mild-to-moderate COVID-19 in pediatric patients (12 years of age and older weighing at least 40 kg) who are at high risk for progression to severe COVID-19, including hospitalization or death. The emergency use of PAXLOVID is only authorized for the duration of the declaration that circumstances exist justifying the authorization of the emergency use of drugs and biological products during the COVID-19 pandemic under Section 564(b)(1) of the Act, 21 U.S.C. § 360bbb-3(b)(1), unless the declaration is terminated or authorization revoked sooner. IMPORTANT SAFETY INFORMATION WARNING: SIGNIFICANT DRUG INTERACTIONS WITH PAXLOVID PAXLOVID includes ritonavir, a strong CYP3A inhibitor, which may lead to greater exposure of certain concomitant medications, resulting in potentially severe, life-threatening, or fatal events Prior to prescribing PAXLOVID: 1) Review all medications taken by the patient to assess potential drug-drug interactions with a strong CYP3A inhibitor like PAXLOVID and 2) Determine if concomitant medications require a dose adjustment, interruption, and/or additional monitoring Consider the benefit of PAXLOVID treatment in reducing hospitalization and death, and whether the risk of potential drug-drug interactions for an individual patient can be appropriately managed PAXLOVID is contraindicated in patients with a history of clinically significant hypersensitivity reactions (eg, toxic epidermal necrolysis or Stevens-Johnson syndrome) to its active ingredients (nirmatrelvir or ritonavir) or any other components of the product. If signs and symptoms of a clinically significant hypersensitivity reaction or anaphylaxis occur, immediately discontinue PAXLOVID and initiate appropriate medications and/or supportive care. PAXLOVID is contraindicated with drugs that are primarily metabolized by CYP3A and for which elevated concentrations are associated with serious and/or life-threatening reactions and drugs that are strong CYP3A inducers where significantly reduced nirmatrelvir or ritonavir plasma concentrations may be associated with the potential for loss of virologic response and possible resistance. There are certain other drugs for which concomitant use with PAXLOVID should be avoided and/or dose adjustment, interruption, or therapeutic monitoring is recommended. Drugs listed here are a guide and not considered a comprehensive list of all drugs that may be contraindicated with PAXLOVID. The healthcare provider should consult other appropriate resources such as the prescribing information for the interacting drug for comprehensive information on dosing or monitoring with concomitant use of a strong CYP3A inhibitor like PAXLOVID. Drugs that are primarily metabolized by CYP3A for which elevated concentrations are associated with serious and/or life-threatening reactions: Alpha 1-adrenoreceptor antagonist: alfuzosin Antianginal: ranolazine Antiarrhythmic: amiodarone, dronedarone, flecainide, propafenone, quinidine Anti-gout: colchicine (in patients with renal and/or hepatic impairment) Antipsychotics: lurasidone, pimozide Benign prostatic hyperplasia agents: silodosin Cardiovascular agents: eplerenone, ivabradine Ergot derivatives: dihydroergotamine, ergotamine, methylergonovine HMG-CoA reductase inhibitors: lovastatin, simvastatin (these drugs can be temporarily discontinued to allow PAXLOVID use) Immunosuppressants: voclosporin Microsomal triglyceride transfer protein inhibitor: lomitapide Migraine medications: eletriptan, ubrogepant Mineralocorticoid receptor antagonists: finerenone Opioid antagonists: naloxegol PDE5 inhibitor: sildenafil (Revatio®) when used for pulmonary arterial hypertension Sedative/hypnotics: triazolam, oral midazolam Serotonin receptor 1A agonist/serotonin receptor 2A antagonist: flibanserin Vasopressin receptor antagonists: tolvaptan Drugs that are strong CYP3A inducers: PAXLOVID cannot be started immediately after discontinuation of any of the following medications due to the delayed offset of the recently discontinued CYP3A inducer: Anticancer drugs: apalutamide Anticonvulsant: carbamazepine, phenobarbital, primidone, phenytoin Antimycobacterials: rifampin, rifapentine Cystic fibrosis transmembrane conductance regulator potentiators: lumacaftor/ivacaftor Herbal Products: St. John’s Wort (hypericum perforatum) Risk of Serious Adverse Reactions Due to Drug Interactions: Initiation of PAXLOVID, which contains ritonavir, a strong CYP3A inhibitor, in patients receiving medications metabolized by CYP3A or initiation of medications metabolized by CYP3A in patients already receiving PAXLOVID, may increase plasma concentrations of medications metabolized by CYP3A. Medications that induce CYP3A may decrease concentrations of PAXLOVID. These interactions may lead to: Clinically significant adverse reactions, potentially leading to severe, life-threatening, or fatal events from greater exposures of concomitant medications Loss of therapeutic effect of PAXLOVID and possible development of viral resistance Severe, life-threatening, and/or fatal adverse reactions due to drug interactions have been reported in patients treated with PAXLOVID. The most commonly reported concomitant medications resulting in serious adverse reactions were calcineurin inhibitors (eg, tacrolimus, cyclosporine), followed by calcium channel blockers. Hepatotoxicity: Hepatic transaminase elevations, clinical hepatitis, and jaundice have occurred in patients receiving ritonavir. Therefore, caution should be exercised when administering PAXLOVID to patients with pre-existing liver diseases, liver enzyme abnormalities, or hepatitis. Because nirmatrelvir is coadministered with ritonavir, there may be a risk of HIV-1 developing resistance to HIV protease inhibitors in individuals with uncontrolled or undiagnosed HIV-1 infection. The most common adverse reactions in the PAXLOVID group (≥1%) that occurred at a greater frequency than in the placebo group were dysgeusia (5% and <1%, respectively) and diarrhea (3% and 2%, respectively). The following adverse reactions have been identified during use of PAXLOVID under Emergency Use Authorization: Immune System Disorders: Anaphylaxis, hypersensitivity reactions Skin and Subcutaneous Tissue Disorders: Toxic epidermal necrolysis, Stevens-Johnson syndrome Nervous System Disorders: Headache Vascular Disorders: Hypertension Gastrointestinal Disorders: Abdominal pain, nausea, vomiting General Disorders and Administration Site Conditions: Malaise PAXLOVID is a strong inhibitor of CYP3A, and an inhibitor of CYP2D6, P-gp, and OATP1B1. Coadministration of PAXLOVID with drugs that are primarily metabolized by CYP3A and CYP2D6 or are transported by P-gp or OATP1B1 may result in increased plasma concentrations of such drugs and increase the risk of adverse events. Coadministration with other CYP3A substrates may require a dose adjustment or additional monitoring. Pregnancy: Available data on the use of nirmatrelvir during pregnancy are insufficient to evaluate for a drug-associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes. Published observational studies on ritonavir use in pregnant women have not identified an increase in the risk of major birth defects. Published studies with ritonavir are insufficient to identify a drug-associated risk of miscarriage. There are maternal and fetal risks associated with untreated COVID-19 in pregnancy. Lactation: There are no available data on the presence of nirmatrelvir in human or animal milk, the effects on the breastfed infant, or the effects on milk production. A transient decrease in body weight was observed in the nursing offspring of rats administered nirmatrelvir. Limited published data report that ritonavir is present in human milk. There is no information on the effects of ritonavir on the breastfed infant or the effects of the drug on milk production. The developmental and health benefits of breastfeeding should be considered along with the mother's clinical need for PAXLOVID and any potential adverse effects on the breastfed infant from PAXLOVID or from the underlying maternal condition. Contraception: Use of ritonavir may reduce the efficacy of combined hormonal contraceptives. Advise patients using combined hormonal contraceptives to use an effective alternative contraceptive method or an additional barrier method of contraception. Pediatrics: The optimal dose of PAXLOVID has not been established in pediatric patients. Systemic exposure of nirmatrelvir increases in renally impaired patients with increase in the severity of renal impairment. No dosage adjustment is recommended in patients with mild renal impairment. Reduce the dose of PAXLOVID in patients with moderate renal impairment (eGFR ≥30 to <60 mL/min). PAXLOVID is not recommended in patients with severe renal impairment (eGFR <30 mL/min) or in patients with end-stage renal disease (eGFR <15 mL/min). PAXLOVID is not recommended for use in patients with severe hepatic impairment (Child-Pugh Class C). Please see Full Prescribing Information, including BOXED WARNING and Patient Information Click for Fact Sheets: For Consumers: EUA Fact sheet for Patients, Parents, and Caregivers For Healthcare Professionals: EUA Fact Sheet for HCPs INDICATIONS AND IMPORTANT SAFETY INFORMATION FOR PREVNAR 20 U.S. INDICATIONS PREVNAR 20® is a vaccine approved for: the prevention of invasive disease caused by 20 Streptococcus pneumoniae strains (1, 3, 4, 5, 6A, 6B, 7F, 8, 9V, 10A, 11A, 12F, 14, 15B, 18C, 19A, 19F, 22F, 23F, and 33F) in individuals 6 weeks and older. the prevention of otitis media (middle ear infection) caused by 7 of the 20 strains in individuals 6 weeks through 5 years. IMPORTANT SAFETY INFORMATION PREVNAR 20 should not be given to anyone who has had a severe allergic reaction to any component of PREVNAR 20 or to diphtheria–toxoid-containing vaccine. Individuals with weakened immune systems may have a lower immune response. Safety data are not available for these groups. A temporary pause in breathing after getting the vaccine has been observed in some infants who were born prematurely. For premature infants, talk to your doctor about the infant's medical status when deciding to get vaccinated with PREVNAR 20. In individuals 2, 4, 6, and 12 through 15 months of age vaccinated with a 4-dose schedule, the most common side effects reported at a rate of >10% were irritability, pain at the injection site, drowsiness, decreased appetite and injection site redness, injection site swelling, and fever. In individuals 15 months through 17 years of age vaccinated with a single dose, the most common side effects reported at a rate of >10% were irritability, pain at the injection site, drowsiness, fatigue and muscle pain, decreased appetite, injection site swelling and injection site redness, headache, and fever. Ask your doctor about the risks and benefits of PREVNAR 20. Only a doctor can decide if PREVNAR 20 is right for your child. View the full Prescribing Information. About Pfizer: Breakthroughs That Change Patients’ Lives At Pfizer, we apply science and our global resources to bring therapies to people that extend and significantly improve their lives. We strive to set the standard for quality, safety and value in the discovery, development and manufacture of health care products, including innovative medicines and vaccines. Every day, Pfizer colleagues work across developed and emerging markets to advance wellness, prevention, treatments and cures that challenge the most feared diseases of our time. Consistent with our responsibility as one of the world's premier innovative biopharmaceutical companies, we collaborate with health care providers, governments and local communities to support and expand access to reliable, affordable health care around the world. For more than 170 years, we have worked to make a difference for all who rely on us. We routinely post information that may be important to investors on our website at . In addition, to learn more, please visit us on and follow us on Twitter at @Pfizer and @Pfizer News, LinkedIn, YouTube and like us on Facebook at Facebook.com/Pfizer. Disclosure Notice The information contained in this release is as of October 5, 2023. Pfizer assumes no obligation to update forward-looking statements contained in this release as the result of new information or future events or developments. This release contains forward-looking information about Pfizer’s infectious disease pipeline, in-line products and product candidates, including ABRYSVO (RSVpreF), Pfizer’s aztreonam-avibactam (ATM-AVI) candidate and PAXLOVID, including their potential benefits, that involves substantial risks and uncertainties that could cause actual results to differ materially from those expressed or implied by such statements. Risks and uncertainties include, among other things, uncertainties regarding the commercial success of ABRYSVO (RSVpreF), Pfizer’s ATM-AVI candidate, PAXLOVID or any of Pfizer’s other infectious disease products or product candidates; the uncertainties inherent in research and development, including the ability to meet anticipated clinical endpoints, commencement and/or completion dates for our clinical trials, regulatory submission dates, regulatory approval dates and/or launch dates, as well as risks associated with pre-clinical and clinical data (including Phase 1/2/3 or Phase 4 or pre-clinical data for ABRYSVO (RSVpreF), Pfizer’s ATM-AVI candidate, PAXLOVID or any of Pfizer’s other infectious disease products or product candidates, including the data discussed in this release) in any of our studies in pediatrics, adolescents, or adults or real world evidence, including the possibility of unfavorable new pre-clinical, clinical or safety data and further analyses of existing pre-clinical, clinical or safety data; risks associated with interim data, including the risk that final results from the Phase 3 trials for RSVpreF could differ from the interim data; the risk that clinical trial data are subject to differing interpretations and assessments by regulatory authorities; the ability to produce comparable clinical or other results for ABRYSVO (RSVpreF), Pfizer’s ATM-AVI candidate, PAXLOVID or any of Pfizer’s other infectious disease products or product candidates, including efficacy, safety and tolerability pro to date, in additional analyses of the Phase 3 trial and additional studies, in real world data studies or in larger, more diverse populations following commercialization; the ability of ABRYSVO (RSVpreF) and PAXLOVID to be effective against emerging virus variants; the risk that the use of ABRYSVO (RSVpreF), Pfizer’s ATM-AVI candidate, PAXLOVID or any of Pfizer’s other infectious disease products or product candidates will lead to new information about efficacy, safety, or other developments, including the risk of additional adverse reactions, some of which may be serious; the risk that pre-clinical and clinical trial data are subject to differing interpretations and assessments, including during the peer review/publication process, in the scientific community generally, and by regulatory authorities; whether and when additional data from ABRYSVO (RSVpreF), Pfizer’s ATM-AVI candidate, PAXLOVID or any of Pfizer’s other infectious disease products or product candidates will be published in scientific journal publications and, if so, when and with what modifications and interpretations; whether regulatory authorities will be satisfied with the design of and results from our clinical studies; whether and when drug applications or submissions to request emergency use or conditional marketing authorizations for any potential indications for ABRYSVO (RSVpreF), Pfizer’s ATM-AVI candidate, PAXLOVID or any of Pfizer’s other infectious disease products or product candidates may be filed in any jurisdictions and if obtained, whether or when such emergency use authorization or licenses will expire or terminate; whether and when any applications that may be pending or filed for ABRYSVO (RSVpreF), Pfizer’s ATM-AVI candidate, PAXLOVID or any of Pfizer’s other infectious disease products or product candidates (including any requested amendments to the emergency use or conditional marketing authorizations) may be approved by regulatory authorities, which will depend on myriad factors, including making a determination as to whether the product's benefits outweigh its known risks and determination of the product's efficacy and, if approved, whether ABRYSVO (RSVpreF), Pfizer’s ATM-AVI candidate, PAXLOVID or any of Pfizer’s other infectious disease products or product candidates will be commercially successful; intellectual property and other litigation; decisions by regulatory authorities impacting labeling, manufacturing processes, safety and/or other matters that could affect the availability or commercial potential of ABRYSVO (RSVpreF), Pfizer’s ATM-AVI candidate, PAXLOVID or any of Pfizer’s other infectious disease products or product candidates, including the authorization or approval of products or therapies developed by other companies; the risk that demand for any of our products may be reduced, no longer exist or not meet expectations, which may lead to excess inventory on-hand and/or in the channel, inventory write-offs or reduced revenues; challenges related to and uncertainties regarding the timing of a transition to the commercial market for any of our products; uncertainties related to the public’s adherence to vaccines and boosters; risks related to our ability to achieve our revenue forecasts for any of Pfizer’s infectious disease products or product candidates; the risk that other companies may produce superior or competitive products; risks related to the availability of raw materials to manufacture or test Pfizer’s infectious disease products or product candidates; challenges related to our vaccine’s formulation, dosing schedule and attendant storage, distribution and administration requirements, including risks related to storage and handling after delivery by Pfizer; the risk that we may not be able to successfully develop other vaccine formulations, booster doses or potential future annual boosters or re-vaccinations or new variant-based or next generation vaccines or potential combination respiratory vaccines; whether and when additional supply or purchase agreements will be reached or existing agreements will be completed or renegotiated; uncertainties regarding the ability to obtain recommendations from vaccine advisory or technical committees and other public health authorities regarding ABRYSVO (RSVpreF) or any of Pfizer’s other infectious disease products or product candidates and uncertainties regarding the commercial impact of any such recommendations; pricing and access challenges; challenges related to public confidence in, or awareness of ABRYSVO (RSVpreF), Pfizer’s ATM-AVI candidate, PAXLOVID or any of Pfizer’s other infectious disease products or product candidates; uncertainties regarding the impact of COVID-19 on our business, operations and financial results; and competitive developments. A further description of risks and uncertainties can be found in Pfizer’s Annual Report on Form 10-K for the fiscal year ended December 31, 2022, and in its subsequent reports on Form 10-Q, including in the sections thereof captioned “Risk Factors” and “Forward-Looking Information and Factors That May Affect Future Results”, as well as in its subsequent reports on Form 8-K, all of which are filed with the U.S. Securities and Exchange Commission and available at and .

FLORHAM PARK, N.J.--(BUSINESS WIRE)-- Shionogi Inc., the United States subsidiary of Shionogi & Co., Ltd., (Head Office: Osaka, Japan; Chief Executive Officer: Isao Teshirogi, Ph.D.), announced the upcoming presentation of new data at IDWeek 2023 (October 11-15, 2023) on its investigational oral antiviral for COVID-19, ensitrelvir (Generic name: ensitrelvir fumaric acid, Code No.: S-217622, hereafter “ensitrelvir”), and Fetroja® (cefiderocol), an antibiotic marketed under the brand name Fetcroja® in Europe. Shionogi recently extended its infectious disease innovation platform with the acquisition of Qpex Biopharma Inc. (Qpex) in July. The acquisition brings a novel investigational ß-lactamase inhibitor to Shionogi, expanding the company’s pipeline of critically needed antimicrobials, and further augmenting its R&D capabilities and expertise. In addition to Shionogi’s data presentations at IDWeek, Olga Lomovskaya, Ph.D., Senior Vice President, Discovery and Clinical Microbiology, Qpex, will present information on xeruborbactam, its investigational ß-lactamase inhibitor, during a session titled, “New Antimicrobials in the Pipeline Part 1,” on Thursday, October 12, from 8:00 – 9:00 AM ET. Shionogi’s data presentations at IDWeek include: Ensitrelvir data: Poster #537: Safety and Effectiveness of Ensitrelvir for the Treatment of COVID-19 in Japanese Clinical Practice: A Post-Marketing Surveillance (Interim Analysis) Poster #549: Ensitrelvir for the Treatment of COVID-19 Infection: Evaluation of Taste Disorder and Smell Disorder in the Phase 3 Part of the Phase 2/3 SCORPIO-SR Randomized Controlled Trial Poster #548: Combined Results of the Phase 2a/2b/3 Randomized Controlled Trials of Ensitrelvir for the Treatment of COVID-19 Infection Poster #530: Population Pharmacokinetic Analysis of Ensitrelvir, an Inhibitor of 3C-like (3CL) Protease of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) for Patients with SARS-CoV-2 Infection Cefiderocol data: Poster #2752: Outcomes of Patients with Stenotrophomonas maltophilia Infections Treated with Cefiderocol in PROVE (Retrospective Cefiderocol Chart Review) Study Poster #2750: Pseudomonas aeruginosa Infections Treated with Cefiderocol: Associations of Site of Infection and Time to First Dose with Outcomes in PROVE (Retrospective Cefiderocol Chart Review) Study Poster #2751: Cefiderocol Use in Treating Patients with Confirmed Stenotrophomonas maltophilia Infections in US Hospitals During January 2020 - June 2022 Poster #2753: Real-World Use of Cefiderocol Treating Non-COVID Patients with Confirmed Gram-Negative Infections in US Hospitals During January 2020 - June 2022 Poster #2172: Activity of Cefiderocol and Comparator Agents Against Molecularly Characterized Multidrug-resistant Enterobacterales Clinical Isolates from United States Hospitals (2020-2022) Poster #2174: Cefiderocol Activity Against Multidrug-resistant and Molecularly Characterized Pseudomonas aeruginosa and Acinetobacter baumannii-calcoaceticus complex Clinical Isolates Causing Infection in United States Hospitals (2020–2022) Poster #2762: Activity of Cefiderocol and Comparator Agents Against Difficult to Treat Resistance (DTR) Gram-Negative Isolates, Collected During 2020-2022 as Part of SENTRY Antimicrobial Surveillance Program Poster #2761: Activity of Cefiderocol and Comparator Agents Against Achromobacter and Burkholderia Isolates, Collected During 2020-2022 as Part of SENTRY Antimicrobial Surveillance Program Poster #2790: Activity of Cefiderocol and Comparator Agents Against Pediatric Isolates of Enterobacterales, Pseudomonas aeruginosa, Acinetobacter baumannii-calcoaceticus species complex, and Stenotrophomonas maltophilia from the SENTRY Surveillance Program (2020-2022) Poster #2112: In vitro Activity of Cefiderocol and Comparator Agents Against Enterobacterales From United States Hospitals Stratified by Infection Type (2020-2022) Poster #2791: Antimicrobial Activity of Cefiderocol and Comparator Agents Against Isolates of Pseudomonas aeruginosa, Acinetobacter baumannii-calcoaceticus species complex, and Stenotrophomonas maltophilia by Infection Type from United States Hospitals in the SENTRY Antimicrobial Surveillance Program (2020-2022) Poster #603: Determining Effect of Media and Disk Source on Reproducibility and Relationship between Broth Microdilution and Disk Diffusion Testing of Cefiderocol For more information, including a complete list of abstracts, please visit . During IDWeek, Shionogi will host a Learning Lounge with David Nicolau, PharmD, titled Fetroja® (cefiderocol), An Overview of In Vitro and Clinical Data on Friday, October 13, from 10:15 – 11:00 AM ET. Shionogi will also host a symposium titled Acute and Long COVID-19 Management Post-Pandemic: To 2024 and Beyond, an Industry Education Evening (Non CE) on Saturday, October 14, from 7:00 – 9:00 PM ET. About Shionogi in Infectious Disease Since 1953 Shionogi has been a leader in infectious disease discovery and commercialization. Our R&D story extends beyond antibiotics to include novel medications for HIV and influenza. Today, our global pipeline includes investigational agents developed to address global health challenges including antimicrobial resistance, COVID-19, influenza, rare fungal diseases and respiratory syncytial virus. As part of our commitment to addressing unmet medical needs, Shionogi is partnering with several non-governmental organizations to increase equitable access to our medications worldwide. Shionogi has a landmark license and technology transfer agreement for cefiderocol with Global Antibiotic Research and Development Partnership (GARDP) and a collaboration agreement with the Clinton Health Access Initiative (CHAI) to transform the landscape of access to antibiotics in many low-income countries, most lower middle- and upper middle-income countries, and select high-income countries. We also have a voluntary license agreement with the Medicines Patent Pool (MPP) to facilitate additional production and distribution of ensitrelvir, pending regulatory authorization or approval, by granting sublicences to qualified generic manufacturers, with the goal of expanding access to people living in low- and middle-income countries (LMICs). For Full Prescribing Information, including approved Indications and Important Safety Information about our marketed product(s), please visit . About Shionogi Inc. Shionogi Inc. is the U.S. subsidiary of Shionogi & Co., Ltd., a Japanese research-driven pharmaceutical company. Since 1878, we have been harnessing the full potential of science to address global health challenges. Over the past six decades, we have discovered several novel antibiotics and medications for HIV and influenza. Today, we're building on our scientific legacy by conducting ongoing research into established products and new antibiotic compounds, as well as developing an investigational antiviral for COVID-19. Learn more at Shionogi.com. Forward-Looking Statements This announcement contains forward-looking statements. These statements are based on expectations in light of the information currently available, assumptions that are subject to risks and uncertainties which could cause actual results to differ materially from these statements. Risks and uncertainties include general domestic and international economic conditions such as general industry and market conditions, and changes of interest rate and currency exchange rate. These risks and uncertainties particularly apply with respect to product-related forward-looking statements. Product risks and uncertainties include, but are not limited to, completion and discontinuation of clinical trials; obtaining regulatory approvals; claims and concerns about product safety and efficacy; technological advances; adverse outcome of important litigation; domestic and foreign healthcare reforms and changes of laws and regulations. Also for existing products, there are manufacturing and marketing risks, which include, but are not limited to, inability to build production capacity to meet demand, lack of availability of raw materials and entry of competitive products. The company disclaims any intention or obligation to update or revise any forward-looking statements whether as a result of new information, future events or otherwise. View source version on businesswire.com: Contacts For Further Information: SHIONOGI Website Inquiry Form: U.S. Media: ShionogiCommunications@shionogi.com Source: Shionogi USA View this news release online at:

PARSIPPANY, N.J.--(BUSINESS WIRE)-- Melinta Therapeutics, LLC (Melinta), a commercial-stage company providing innovative therapies for acute and life-threatening illnesses, announced today a partnership with the Biomedical Advanced Research and Development Authority (BARDA) to advance two antibiotics currently FDA-approved for adults, BAXDELA® (delafloxacin) and VABOMERE® (meropenem and vaborbactam), for use in pediatrics. In addition, Melinta and BARDA will partner on the development of BAXDELA® against biothreat pathogens. Under this contract, BARDA has awarded $20.5M for the base period, with the potential of additional funding of $121.4M, amounting to total funding up to $141.9M if all options are exercised. With this BARDA funding, Melinta aims to submit four supplemental New Drug Applications (sNDAs) for these new indications. BARDA is part of the U.S. Department of Health and Human Services’ Administration for Strategic Preparedness and Response. This partnership may enable BAXDELA® and VABOMERE® to be integrated into national preparedness efforts as well as pediatric care for multi−drug-resistant bacterial infections, enhancing sustained availability of the products, increasing end-user familiarity, and striving for availability for the US pediatric population. "I am thrilled and honored that BARDA and Melinta have agreed to partner for this important research marking a significant milestone in our journey toward becoming legendary for providing innovative therapies to people impacted by acute and life-threatening illnesses,” said Christine Miller, Melinta President and CEO. “This contract fuels our excitement to explore expanded applications of BAXDELA® and VABOMERE® through innovative research. We are poised to make a lasting impact in healthcare, unlocking new avenues for patient care and addressing unmet needs. We will drive progress and redefine what is possible, paving the way for a healthier future.” BAXDELA® (delafloxacin) is a novel fluoroquinolone (FQ), approved for adults in IV and oral tablet formulations to treat acute bacterial skin and skin structure infection (ABSSSI) and community-acquired bacterial pneumonia (CABP). CABP remains a leading cause of pediatric hospitalization and mortality in the US, with the highest incidence and morbidity in children under 2 years of age. The partnership with BARDA will support the BAXDELA® pediatric development plan to extend the adult CABP indication to children aged 2 months to less than 18 years. In addition, Melinta aims to advance BAXDELA® as a potential treatment option against biothreat pathogens for both adults and children. Given its broad spectrum of activity and availability in both IV and oral formulations, BAXDELA® can provide flexibility for use following a biothreat public health emergency, in varied care settings and across spectrums of disease severity. VABOMERE® is an approved combination of the carbapenem, meropenem, and the novel ß-lactamase inhibitor (BLI), vaborbactam. VABOMERE® was specifically designed to address gram-negative bacteria that produce beta-lactamase enzymes, including strains producing the Klebsiella pneumoniae carbapenemase (KPC) enzyme, the predominant form of carbapenem-resistant Enterobacterales (CRE) in the US. The CDC (Centers for Disease Control) classifies CRE as an “urgent” threat because there are few alternative antibiotics to treat CRE-infections. The VABOMERE® pediatric development plan will support the filing of sNDAs to extend the adult cUTI indication to children aged 3 months to less than 18 years and target the indication of late onset neonatal sepsis in children aged less than 90 days. “The ability to partner with BARDA on these important programs is exactly the type of work that brought me to Melinta and what excites me about the work we do,” said Douglas Girgenti, MD, VP, Head of Development and Clinical Operations, Melinta. “Pediatric clinical development of BAXDELA® and VABOMERE® will help inform drug safety and tolerability as well as determine optimal antibiotic dosing, with the ultimate goal of enabling use in pediatric cases and expanding the arsenal of healthcare providers in their fight to save lives. The potential addition of BAXDELA® to the biodefense armamentarium will likewise provide a much-needed option for public health emergencies in both children and adults.” This project has been funded in whole or in part with federal funds from the Department of Health and Human Services; Administration for Strategic Preparedness and Response; Biomedical Advanced Research and Development Authority, under contract number 75A50123C00022. About Melinta Therapeutics Melinta Therapeutics is a biopharmaceutical company dedicated to providing innovative therapies to people impacted by acute and life-threatening illnesses. We focus our expanding portfolio on serving patients with an unmet need because that’s how we make the most meaningful impact. At Melinta, we’re visionaries dedicated to innovation while staying grounded in what matters most: patients. Our portfolio currently includes seven commercial-stage products: BAXDELA® (delafloxacin), KIMYRSA® (oritavancin), MINOCIN® (minocycline) for Injection, ORBACTIV® (oritavancin), REZZAYO™ (rezafungin for injection), TOPROL-XL® (metoprolol succinate) and VABOMERE® (meropenem and vaborbactam). For more information about Melinta Therapeutics, our commitment to patients, and to learn about our portfolio of therapies, visit Melinta.com. About BAXDELA® (delafloxacin) BAXDELA® is indicated in adults for the treatment of acute bacterial skin and skin structure infections (ABSSSI) caused by the following susceptible microorganisms: Staphylococcus aureus (including methicillin-resistant [MRSA] and methicillin-susceptible [MSSA] isolates), Staphylococcus haemolyticus, Staphylococcus lugdunensis, Streptococcus agalactiae, Streptococcus anginosus group (including Streptococcus anginosus, Streptococcus intermedius, and Streptococcus constellatus), Streptococcus pyogenes, and Enterococcus faecalis, Escherichia coli, Enterobacter cloacae, Klebsiella pneumoniae, and Pseudomonas aeruginosa. BAXDELA® is indicated in adults for the treatment of community-acquired bacterial pneumonia (CABP) caused by the following susceptible microorganisms: Streptococcus pneumoniae, Staphylococcus aureus (methicillin-susceptible [MSSA] isolates only), Klebsiella pneumoniae, Escherichia coli, Pseudomonas aeruginosa, Haemophilus influenzae, Haemophilus parainfluenzae, Chlamydia pneumoniae, Legionella pneumophila, and Mycoplasma pneumoniae. IMPORTANT SAFETY INFORMATION: WARNING: SERIOUS ADVERSE REACTIONS INCLUDING TENDINITIS, TENDON RUPTURE, PERIPHERAL NEUROPATHY, CENTRAL NERVOUS SYSTEM EFFECTS, and EXACERBATION OF MYASTHENIA GRAVIS Contraindications BAXDELA® is contraindicated in patients with known hypersensitivity to BAXDELA® or other fluoroquinolones. Warnings and Precautions Fluoroquinolones have been associated with disabling and potentially irreversible serious adverse reactions. Avoid use in patients who have experienced any of the following serious adverse reactions. If these reactions occur in patients receiving BAXDELA®, discontinue BAXDELA® immediately and institute appropriate treatment: Tendinitis, tendon rupture, with increased risk in elderly, patients taking corticosteroids and in patients with organ transplants Peripheral neuropathy, such as pain, burning, tingling, numbness, and/or weakness or other alterations of sensation in touch and/or motor strength Central nervous system adverse reactions such as seizures, increased intracranial pressure, dizziness, and tremors Exacerbation of myasthenia gravis, including death and requirement for ventilator Fluoroquinolones, including BAXDELA®, have been associated with an increased risk of psychiatric adverse reactions, including: toxic psychosis; hallucinations, or paranoia; depression, or suicidal thoughts or acts; delirium, disorientation, confusion, or disturbances in attention; anxiety, agitation, or nervousness; insomnia or nightmares; memory impairment. These adverse reactions may occur following the first dose. Hypersensitivity reactions have been reported in patients receiving fluoroquinolones, including BAXDELA®. Reactions can be serious and occasionally fatal (anaphylactic). Discontinue BAXDELA® at the first sign of hypersensitivity. Clostridium difficile-associated diarrhea has been reported with nearly all systemic antibacterial agents, including BAXDELA®, with severity ranging from mild diarrhea to fatal colitis. Evaluate if diarrhea occurs. Fluoroquinolones have been associated with an increased risk of aortic aneurysm and dissection, especially in elderly patients. In patients with a known aortic aneurysm or patients who are at greater risk for aortic aneurysms, reserve BAXDELA® for use only when there are no alternative antibacterial treatments available. Prescribing BAXDELA® in the absence of a proven or strongly suspected bacterial infection is unlikely to provide benefit to the patient and increases the risk of the development of drug-resistant bacteria. Fluoroquinolones have been associated with disturbances of blood glucose, including symptomatic hyperglycemia and hypoglycemia. Severe cases of hypoglycemia resulting in coma or death have been reported with other fluoroquinolones. Monitor blood glucose carefully in diabetic patients receiving oral hypoglycemic agents or insulin. Discontinue BAXDELA® and initiate appropriate therapy immediately if a hypoglycemic reaction occurs. Adverse Reactions The most common adverse reactions in patients treated with BAXDELA® were nausea (8%), diarrhea (8%), headache (3%), transaminase elevations (3%), and vomiting (2%). Visit for the full Prescribing Information, including the Boxed Warning. About VABOMERE® (meropenem and vaborbactam) VABOMERE® is indicated for the treatment of patients 18 years of age and older with complicated urinary tract infections (cUTI) including pyelonephritis caused by the following susceptible microorganisms: Escherichia coli, Klebsiella pneumoniae, and Enterobacter cloacae species complex. IMPORTANT SAFETY INFORMATION Contraindications VABOMERE® is contraindicated in patients with known hypersensitivity to any components of VABOMERE® (meropenem and vaborbactam), or to other drugs in the same class or in patients who have demonstrated anaphylactic reactions to beta-lactam antibacterial drugs. Warnings and Precautions Hypersensitivity reactions were reported in patients treated with VABOMERE® in the clinical trials. Serious and occasionally fatal hypersensitivity (anaphylactic) reactions and serious skin reactions have been reported in patients receiving therapy with beta-lactam antibacterial drugs. There have been reports of individuals with a history of penicillin hypersensitivity who have experienced severe hypersensitivity reactions when treated with another beta-lactam antibacterial drug. If an allergic reaction to VABOMERE® occurs, discontinue the drug immediately. Seizures and other adverse Central Nervous System (CNS) experiences have been reported during treatment with meropenem, which is a component of VABOMERE®. Close adherence to the recommended dosage regimens is urged, especially in patients with known factors that predispose to convulsive activity. Clostridioides difficile-associated diarrhea (CDAD) has been reported with use of nearly all antibacterial agents, including VABOMERE, and may range in severity from mild diarrhea to fatal colitis. Careful medical history is necessary since CDAD has been reported to occur over two months after the administration of antibacterial agents. If CDAD is suspected or confirmed, ongoing antibacterial drug use not directed against C. difficile may need to be discontinued. The concomitant use of VABOMERE® and valproic acid or divalproex sodium is generally not recommended. Case reports in the literature have shown that co-administration of carbapenems, including meropenem, to patients receiving valproic acid or divalproex sodium results in a reduction in valproic acid concentrations. The valproic acid concentrations may drop below the therapeutic range as a result of this interaction, therefore increasing the risk of breakthrough seizures. If administration of VABOMERE® is necessary, consider supplemental anticonvulsant therapy. In patients with renal impairment, thrombocytopenia has been observed in patients treated with meropenem, but no clinical bleeding has been reported. Alert patients receiving VABOMERE® on an outpatient basis regarding adverse reactions such as seizures, delirium, headaches and/or paresthesias that could interfere with mental alertness and/or cause motor impairment. Prescribing VABOMERE® in the absence of a proven or strongly suspected bacterial infection is unlikely to provide benefit to the patient and increases the risk of drug-resistant bacteria. As with other antibacterial drugs, prolonged use of VABOMERE® may result in overgrowth of nonsusceptible organisms. Adverse Reactions The most frequently reported adverse reactions occurring in ≥3% of patients treated with VABOMERE® were headache, phlebitis/infusion site reactions, and diarrhea. Visit for the full Prescribing Information.