Anterior chamber inflammation

– Findings from nine human factors studies, assessing design and user interface, suggest SelfJect functions as an effective delivery device when used as intended1 – – The SelfJect delivery device received the Arthritis Foundation's Ease of Use certification – DUBLIN, Sept. 17, 2024 /PRNewswire/ -- Mallinckrodt plc, a global specialty pharmaceutical company, today announced the publication of findings from seven formative and two validation human factors studies of recently launched Acthar Gel (repository corticotropin injection) Single-Dose Pre-filled SelfJect™ Injector ("SelfJect").2 The manuscript, describing the formative and human factor outcomes, was recently published online in Expert Opinion on Drug Delivery. Approved by the U.S. Food and Drug Administration (FDA) in February of 2024, SelfJect also received the Arthritis Foundation's Ease of Use® certification. This certification recognizes SelfJect for its easy-to-use design, based on testing by an independent third party. Acthar Gel is a naturally sourced complex mixture of adrenocorticotropic hormone (ACTH) analogs and other pituitary peptides.2 Acthar Gel is approved by the FDA for the treatment of several autoimmune disorders and medical conditions known to cause inflammation.2 SelfJect is available in 40 USP units/0.5 mL and 80 USP units/1.0 mL injectors and must be administered by people 18 years of age or older. SelfJect is not to be used for the treatment of infantile spasms. Please see Indications and Important Safety Information for Acthar Gel below. "We're proud of the extensive research and testing conducted to develop SelfJect, including these human factors studies which were critical to our application for FDA approval," said Lisa French, Executive Vice President & Chief Commercial Officer. "These results, and the Arthritis Foundation's Ease of Use certification, are a testament to our commitment to modernize Acthar Gel for our patient community. In keeping with our mission of listening for needs, SelfJect provides an administration option designed to better support patients, caregivers, and medical professionals in managing appropriate conditions." Arthritis Foundation President and CEO Steven Taylor said, "Ease of Use products and packaging are designed to help people with arthritis and those with physical limitations by making everyday tasks easier. We're excited to partner with companies like Mallinckrodt that understand the importance of developing products and packages with the needs of patients at the forefront." About the Studies Human factors studies were conducted utilizing SelfJect to assess the design of the injection device and its user interface, as well as mitigate potential use-related hazards, through observation of participants using the device and participant feedback.1 The published research includes results from nine studies, including seven formative studies, a validation study (with four prior pilot validation studies), and a supplemental validation study with participants including lay users, patients, caregivers, and healthcare providers.1 The formative studies tested and developed various components such as packaging and instructional material, whereas the validation study evaluated administration of the device with the intended-to-market user interface and representative users in representative simulated-use environments.1 Four pilot studies then generated additional protocol recommendations for the validation study.1 In the 160-participant validation study, 91% (n=146) of participants successfully administered their first injection, with 98% (n=156) cumulative success after the second trial.1 Use errors were rare with simulated-use (6.9% [n=194] of all evaluated tasks) and knowledge-based (1.6% [n=56] of all evaluated tasks) testing. The most common use errors were related to not appropriately warming the product before administration.1 Limitations of the studies include1: The controlled study setting may not have accurately replicated real-world complexities that play a role in the administration of Acthar Gel via SelfJect, potentially altering the number of study use errors and deviation. Injections were performed with placebo gel into an injection pad and not a patient. The feedback that a user receives when injecting into skin versus a surrogate injection pad may influence use behavior. A more realistic delivery container could have been used to cue the participant that this product would arrive cold and would need to be stored appropriately. Participant selection bias, reliance on self-reported and qualitative data, and small sample sizes in the formative and pilot studies may have impacted results. If a customer is interested in learning more about SelfJect, they can reach out to their local representative or visit ActharHCP.com. INDICATIONS Acthar Gel is indicated for: Inducing a diuresis or a remission of proteinuria in nephrotic syndrome without uremia of the idiopathic type or that due to lupus erythematosus Monotherapy for the treatment of infantile spasms in infants and children under 2 years of age Treatment of acute exacerbations of multiple sclerosis in adults. Controlled clinical trials have shown Acthar to be effective in speeding the resolution of acute exacerbations of multiple sclerosis. However, there is no evidence that it affects the ultimate outcome or natural history of the disease Severe acute and chronic allergic and inflammatory processes involving the eye and its adnexa such as: keratitis, iritis, iridocyclitis, diffuse posterior uveitis and choroiditis, optic neuritis, chorioretinitis, anterior segment inflammation Symptomatic sarcoidosis Treatment during an exacerbation or as maintenance therapy in selected cases of systemic lupus erythematosus Treatment during an exacerbation or as maintenance therapy in selected cases of systemic dermatomyositis (polymyositis) Adjunctive therapy for short-term administration (to tide the patient over an acute episode or exacerbation) in: psoriatic arthritis; rheumatoid arthritis, including juvenile rheumatoid arthritis (selected cases may require low-dose maintenance therapy); ankylosing spondylitis IMPORTANT SAFETY INFORMATION Contraindications Acthar is contraindicated: For intravenous administration In infants under 2 years of age who have suspected congenital infections With concomitant administration of live or live attenuated vaccines in patients receiving immunosuppressive doses of Acthar In patients with scleroderma, osteoporosis, systemic fungal infections, ocular herpes simplex, recent surgery, history of the presence of a peptic ulcer, congestive heart failure, uncontrolled hypertension, primary adrenocortical insufficiency, adrenocortical hyperfunction, or sensitivity to proteins of porcine origin Warnings and Precautions The adverse effects of Acthar are related primarily to its steroidogenic effects Acthar may increase susceptibility to new infection or reactivation of latent infections Suppression of the hypothalamic-pituitary-adrenal (HPA) axis may occur following prolonged therapy with the potential for adrenal insufficiency after withdrawal of the medication. Adrenal insufficiency may be minimized by tapering of the dose when discontinuing treatment. During recovery of the adrenal gland patients should be protected from the stress (e.g., trauma or surgery) by the use of corticosteroids. Monitor patients for effects of HPA axis suppression after stopping treatment Cushing's syndrome may occur during therapy but generally resolves after therapy is stopped. Monitor patients for signs and symptoms Acthar can cause elevation of blood pressure, salt and water retention, and hypokalemia. Monitor blood pressure and sodium and potassium levels Acthar often acts by masking symptoms of other diseases/disorders. Monitor patients carefully during and for a period following discontinuation of therapy Acthar can cause gastrointestinal (GI) bleeding and gastric ulcer. There is also an increased risk for perforation in patients with certain GI disorders. Monitor for signs of perforation and bleeding Acthar may be associated with central nervous system effects ranging from euphoria, insomnia, irritability, mood swings, personality changes, and severe depression to psychosis. Existing conditions may be aggravated Patients with comorbid disease may have that disease worsened. Caution should be used when prescribing Acthar in patients with diabetes and myasthenia gravis Prolonged use of Acthar may produce cataracts, glaucoma, and secondary ocular infections. Monitor for signs and symptoms Acthar is immunogenic and prolonged administration of Acthar may increase the risk of hypersensitivity reactions. Cases of anaphylaxis have been reported in the postmarketing setting. Neutralizing antibodies with chronic administration may lead to loss of endogenous ACTH and Acthar activity There may be an enhanced effect in patients with hypothyroidism and in those with cirrhosis of the liver Long-term use may have negative effects on growth and physical development in children. Monitor pediatric patients Decrease in bone density may occur. Bone density should be monitored in patients on long-term therapy Adverse Reactions Commonly reported postmarketing adverse reactions for Acthar include injection site reaction, asthenic conditions (including fatigue, malaise, asthenia, and lethargy), fluid retention (including peripheral swelling), insomnia, headache, and blood glucose increased The most common adverse reactions for the treatment of infantile spasms (IS) are increased risk of infections, convulsions, hypertension, irritability, and pyrexia. Some patients with IS progress to other forms of seizures; IS sometimes masks these seizures, which may become visible once the clinical spasms from IS resolve Pregnancy Acthar may cause fetal harm when administered to a pregnant woman Please see full Prescribing Information for additional Important Safety Information. ABOUT MALLINCKRODT Mallinckrodt is a global business consisting of multiple wholly owned subsidiaries that develop, manufacture, market and distribute specialty pharmaceutical products and therapies. The company's Specialty Brands reportable segment's areas of focus include autoimmune and rare diseases in specialty areas like neurology, rheumatology, hepatology, nephrology, pulmonology, ophthalmology, and oncology; immunotherapy and neonatal respiratory critical care therapies; analgesics; and gastrointestinal products. Its Specialty Generics reportable segment includes specialty generic drugs and active pharmaceutical ingredients. To learn more about Mallinckrodt, visit . CAUTIONARY STATEMENTS RELATED TO FORWARD-LOOKING STATEMENTS This release contains forward-looking statements, including with regard to Acthar Gel (repository corticotropin injection), the Acthar Gel Single-Dose Pre-filled SelfJect™ Injector, the potential of these products to improve health and treatment outcomes, their potential impact on patients and the availability of Acthar Gel Single-Dose Pre-filled SelfJect Injector in the U.S. in the future. The statements are based on assumptions about many important factors, including the following, which could cause actual results to differ materially from those in the forward-looking statements: the effects of Mallinckrodt's recent emergence from bankruptcy; satisfaction of, and compliance with, regulatory and other requirements; actions of regulatory bodies and other governmental authorities; changes in laws and regulations; changes in market demand; issues with product quality, manufacturing or supply, or patient safety issues or adverse side effects or adverse reactions associated with Acthar Gel and Acthar Gel Single-Dose Pre-filled SelfJect Injector; and other risks identified and described in more detail in the "Risk Factors" and "Management's Discussion and Analysis of Financial Condition and Results of Operations" sections of Mallinckrodt's most recent Annual Report on Form 10-K and other filings with the SEC, all of which are available on its website. The forward-looking statements made herein speak only as of the date hereof and Mallinckrodt does not assume any obligation to update or revise any forward-looking statement, whether as a result of new information, future events and developments or otherwise, except as required by law. CONTACT Media Inquiries Green Room Communications 908-577-4531 [email protected] Investor Relations Derek Belz Vice President, Investor Relations 314-654-3950 [email protected] Mallinckrodt, the "M" brand mark, SelfJect, and the Mallinckrodt Pharmaceuticals logo are trademarks of a Mallinckrodt company. Other brands are trademarks of a Mallinckrodt company or their respective owners. ©2024 Mallinckrodt. US-2400718 09/24 References 1 Linnane A, Lau M, Miranda P, Elliott S. Formative and Validation Human Factors Studies of a New Disposable Prefilled Injection Device for Subcutaneous Delivery of Acthar Gel (Repository Corticotropin Injection). Expert Opinion on Drug Delivery. 2024. . 2 Acthar® Gel (repository corticotropin injection) [prescribing information]. Bridgewater, NJ: Mallinckrodt ARD LLC. SOURCE Mallinckrodt plc WANT YOUR COMPANY'S NEWS FEATURED ON PRNEWSWIRE.COM? 440k+ Newsrooms & Influencers 9k+ Digital Media Outlets 270k+ Journalists Opted In GET STARTED

Bel-sar Demonstrated 80% Tumor Control Rate, 90% Visual Acuity Preservation, and a Highly Favorable Safety Profile Aura to Host a Virtual Ocular Oncology Investor Event Featuring Key Opinion Leaders Today at 8:00 am ET BOSTON, Sept. 12, 2024 (GLOBE NEWSWIRE) -- Aura Biosciences, Inc. (NASDAQ: AURA), a clinical-stage biotechnology company developing precision therapies for solid tumors designed to preserve organ function, today announced positive Phase 2 end of study results evaluating bel-sar (AU-011) for the first-line treatment of early-stage choroidal melanoma (CM), a vision and life-threatening ocular cancer. The results were presented at The Retina Society Annual Meeting, on Thursday, September 12, 2024, in Lisbon, Portugal. The Phase 2 study (NCT04417530) is an open-label, ascending single and repeat dose escalation trial in patients with early-stage CM (small CM and indeterminate lesions) designed to evaluate the safety, tolerability, and efficacy of up to three cycles of bel-sar treatment. The trial included both single and multiple ascending dose cohorts, with a total of 22 patients enrolled. Patients were closely monitored over a twelve-month follow-up period to assess tumor control, visual acuity preservation, and tumor growth rate. Tumor Control and Visual Acuity Preservation The Phase 2 results demonstrated that bel-sar achieved an 80% tumor control rate (n=8/10) among Phase 3-eligible patients who received the therapeutic regimen, with complete cessation of growth following treatment among responders (post-treatment average growth rate of 0.011 mm/yr among responders compared to 0.351 mm/yr prior to study entry; p<0.0001). Visual acuity preservation was achieved in 90% of these 10 patients. Importantly, 80% of these 10 patients were at high risk for vision loss with tumors close to the fovea or optic disc, highlighting the potential for vision preservation with this novel class of drugs. Of note, the current standard of care is radiotherapy, which leads to visual acuity of <20/200 (the cutoff for legal blindness) in the treated eye in up to 87% of patients.1 The Phase 2 results are a significant achievement considering the typically poor prognosis associated with choroidal melanoma, a rare and life-threatening ocular cancer, where there are no approved vision-preserving therapies to date. Highly Favorable Safety Profile with No Dose-Limiting Toxicities The safety profile of bel-sar was highly favorable in all participants regardless of dose. There were no treatment-related serious adverse events (SAEs) reported. Ocular treatment-related AEs (TRAEs) were mild (Grade 1), included anterior chamber inflammation (18%) or cell (9%) and resolved without sequelae. The vast majority (~70%) of the anterior chamber inflammation/cell events were self-limited, requiring no treatment, and resolved in a median of 6 days. For those events that did require treatment, topical steroid eye drops, administered for a median of 6 days, achieved complete resolution of the inflammation. Eye pain occurred in 9% of patients and was mild (Grade 1). Importantly, no treatment-related posterior inflammation events (no vitritis, choroiditis, retinitis, retinal pigment epithelium changes, or vasculitis) were reported. “Many patients with early-stage choroidal melanoma currently face the difficult choice of whether to treat the cancer and risk losing their vision in the treated eye, or delay treatment and risk the tumor progressing,” said Dr. Ivana Kim, Director of the Ocular Melanoma Center, Mass Eye and Ear / Harvard Medical School. “The Phase 2 end of study data that I presented at The Retina Society Annual Meeting showed 80% tumor control rate, 90% vision preservation, and a highly favorable safety profile in early-stage CM. Bel-sar has the potential to become the first treatment that achieves the dual goals of treating the tumor while also preserving vision, which could change the treatment paradigm for patients with this disease.” “We believe these Phase 2 results provide clinical evidence for bel-sar as a potential vision-sparing, first-line treatment option for patients with early-stage CM,” said Dr. Jill Hopkins, Chief Medical Officer and President of Research and Development at Aura Biosciences. “Bel-sar is potentially a first-in-class novel therapy and we are excited to continue to advance this program, which is currently enrolling patients in our ongoing global Phase 3 CoMpass trial.” Aura received written agreement from the U.S. Food and Drug Administration (FDA) under a Special Protocol Assessment (SPA) for the design and planned analysis of the global Phase 3 CoMpass trial indicating concurrence by the FDA with the adequacy of the study, if successful, to address the objectives necessary to support Aura’s planned biologics license application submission. Aura Biosciences is focused on enhancing treatment options and improving outcomes for patients with CM and other cancers. Aura Virtual Ocular Oncology Investor Event Aura will host a virtual ocular oncology investor event featuring Dr. Ivana Kim, MD (Mass Eye and Ear) and Dr. Prithvi Mruthyunjaya, MD, MHS (Stanford University Byers Eye Institute) to discuss the Phase 2 end of study data on Thursday, September 12, 2024, at 8:00 am Eastern Time. To register for the event, click here. A live question and answer session will follow the formal discussion. The live webcast of Aura’s virtual ocular oncology investor event will be available on the “Investors & Media” page under the “Events & Presentations” section of Aura’s website at https://ir.aurabiosciences.com/events-and-presentations, where a replay of the webcast will be archived for 90 days following the presentation date. About Aura Biosciences Aura Biosciences is a clinical-stage biotechnology company focused on developing precision therapies for solid tumors that aim to preserve organ function. Our lead candidate, bel-sar (AU-011), is currently in late-stage development for primary choroidal melanoma, and in early-stage development in other ocular oncology indications and bladder cancer. Aura Biosciences is headquartered in Boston, MA. Our mission is to grow as an innovative global oncology company that positively transforms the lives of patients. For more information, visit aurabiosciences.com. Follow us on X (formerly Twitter) @AuraBiosciences and visit us on LinkedIn. Forward-Looking Statements This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, as amended, and other federal securities laws. Any statements that are not statements of historical fact may be deemed to be forward looking statements. Words such as “may,” “will,” “could,” “should,” “expects,” “intends,” “plans,” “anticipates,” “believes,” “estimates,” “predicts,” “projects,” “seeks,” “endeavor,” “potential,” “continue” or the negative of such words or other similar expressions that can be used to identify forward-looking statements. These forward-looking statements include express or implied statements regarding Aura’s future expectations, plans and prospects, including, without limitation, statements regarding the therapeutic potential of bel-sar for the treatment of cancers including early-stage CM and other oncology indications; statements regarding Aura’s expectations for the Phase 3 clinical trial of bel-sar for early-stage CM; statements regarding Aura’s expectations for an improved quality of life of patients after treatment with bel-sar; statements regarding Aura’s beliefs and expectations for the urgent need for an effective local treatment in ocular and other oncology indications to preserve organ function; statements regarding Aura’s expectations for the estimated patient populations and related market opportunities for bel-sar; and the potential for regulatory approval of bel-sar. The forward-looking statements in this press release are neither promises nor guarantees, and investors should not place undue reliance on these forward-looking statements because they involve known and unknown risks, uncertainties and other factors, many of which are beyond Aura’s control and which could cause actual results to differ materially from those expressed or implied by these forward-looking statements, including, without limitation, uncertainties inherent in clinical trials and in the availability and timing of data from ongoing clinical trials; the expected timing for submissions for regulatory approval or review by governmental authorities; the risk that the results of Aura’s preclinical and clinical trials may not be predictive of future results in connection with future clinical trials; the risk that interim data from ongoing clinical trials may not be predictive of final data from completed clinical trials; the risk that governmental authorities may disagree with Aura’s clinical trial designs, even where Aura has obtained agreement with governmental authorities on the design of such trials, such as the Phase 3 SPA agreement with the FDA; whether Aura will receive regulatory approvals to conduct trials or to market products; whether Aura’s cash resources will be sufficient to fund its foreseeable and unforeseeable operating expenses and capital expenditure requirements; Aura’s ongoing and planned preclinical activities; and Aura’s ability to initiate, enroll, conduct or complete ongoing and planned clinical trials. These risks, uncertainties and other factors include those risks and uncertainties described under the heading “Risk Factors” in Aura’s most recent Annual Report on Form 10-K and Quarterly Report on Form 10-Q filed with the United States Securities and Exchange Commission (SEC) and in subsequent filings made by Aura with the SEC, which are available on the SEC’s website at www.sec.gov. Except as required by law, Aura disclaims any intention or responsibility for updating or revising any forward-looking statements contained in this press release in the event of new information, future developments or otherwise. These forward-looking statements are based on Aura’s current expectations and speak only as of the date hereof and no representations or warranties (express or implied) are made about the accuracy of any such forward-looking statements. Investor Contact:Alex DasallaHead of Investor Relations and Corporate CommunicationsIR@aurabiosciences.com Media Contact:Kimberly HaKKH Advisorskimberly.ha@kkhadvisors.com 917-291-5744 __________________1 Jarczak J, Karska-Basta I, Romanowska-Dixon B. Deterioration of visual acuity after brachytherapy and proton therapy of uveal melanoma, and methods of counteracting this complication based on recent publications. Medicina (Kaunas). 2023;59(6):1131.

– Acthar Gel is the first and only medication in its class of adrenocorticotropic hormone products available in a self-injection device to treat a range of chronic and acute inflammatory and autoimmune conditions1 – DUBLIN, Aug. 6, 2024 /PRNewswire/ -- Mallinckrodt plc, a global specialty pharmaceutical company, today announced the availability of the Acthar Gel (repository corticotropin injection) Single-Dose Pre-filled SelfJect™ Injector (herein referred to as "SelfJect"), offering a new administration option for Acthar Gel for appropriate patients with a range of chronic and acute inflammatory and autoimmune conditions.1 The U.S. Food and Drug Administration (FDA) previously approved Mallinckrodt's supplemental New Drug Application (sNDA) for SelfJect in February 2024. Continue Reading Acthar Gel Single-Dose Pre-filled SelfJect Injector Image Experience the full interactive Multichannel News Release here: Acthar Gel is a naturally sourced complex mixture of adrenocorticotropic hormone (ACTH) analogs and other pituitary peptides.1 Acthar Gel is approved by the FDA for the treatment of several autoimmune disorders and medical conditions known to cause inflammation.1 Please see Indications and Important Safety Information for Acthar Gel below. Acthar Gel is the first and only medication in its class of adrenocorticotropic hormone products available in two forms of administration ­­– multi-dose vial and syringe and SelfJect.1 The color-coded device is pre-filled with Acthar Gel, available in 40 USP units/0.5 mL (green label) and 80 USP units/1.0 mL (purple label) versions.1,2,3 SelfJect requires less preparation with fewer materials and steps for the administration of Acthar Gel compared to the multi-dose vial and syringe.2,3 The latex-free device also has additional safety elements, including a hidden needle intended to help protect patients against needlesticks.2,3,4 SelfJect is for subcutaneous administration by people 18 years of age or older and is designed to deliver the appropriate dose of Acthar Gel, as prescribed by a healthcare professional.1,2,3 "The launch of SelfJect is a significant advancement for patients who take Acthar Gel as it is designed to simplify the injection process, help ensure accurate dosing, and has enhanced safety features. SelfJect supports patients by helping to make treatment easier to administer than a multi-dose vial and syringe, particularly for patients with dexterity issues,"5 said Kostas Botsoglou, MD, Managing Partner of Rheumatology Center of Western New York. "I'm looking forward to being able to provide this option to appropriate patients in my practice to help them adhere to their treatment plans, which are intended to better their chances for improved outcomes." Acthar Gel has an established efficacy and safety profile, as well as a long track record of clinical experience spanning more than 70 years.1 Acthar Gel is accessible to over 220 million individuals covered by commercial insurance and Medicare.6 Acthar Gel has been prescribed by over 9,200 healthcare professionals and used by more than 43,500 patients (2013 to 2021).7 "We're excited to deliver an option that not only helps to address the needs of the patient communities we serve, but also underscores our commitment to the modernization of Acthar Gel. We know that managing chronic and acute inflammatory and autoimmune conditions can be difficult, and we're proud to offer this new delivery device, designed to better support patients, caregivers, and medical professionals in managing appropriate conditions," said Lisa French, Executive Vice President & Chief Commercial Officer. Mallinckrodt is committed to providing therapy for appropriate patients with difficult-to-treat conditions. Mallinckrodt offers a suite of services for eligible Acthar Gel patients including support with obtaining insurance coverage, commercial copay assistance, a patient assistance program, injection training services, and customized assistance by a nurse navigator. Mallinckrodt also offers a team of field-based experts who provide education for healthcare professionals on the reimbursement process as well as tools available for patients. For more information about Mallinckrodt's programs and patient support please visit ActharHCP.com. For patients who prefer or require the traditional administration method, Acthar Gel continues to be available in the multi-dose vial. This method remains appropriate for patients who require doses other than 40 or 80 units.1 SelfJect is not to be used for the treatment of infantile spasms. The process for starting new patients on Acthar Gel using SelfJect remains the same as for those starting with the multi-dose vial – there are no additional access steps for SelfJect. If a new customer is interested in learning more about SelfJect, they can reach out to their local representative or visit ActharHCP.com. INDICATIONS Acthar Gel is indicated for: Inducing a diuresis or a remission of proteinuria in nephrotic syndrome without uremia of the idiopathic type or that due to lupus erythematosus Monotherapy for the treatment of infantile spasms in infants and children under 2 years of age Treatment of acute exacerbations of multiple sclerosis in adults. Controlled clinical trials have shown Acthar to be effective in speeding the resolution of acute exacerbations of multiple sclerosis. However, there is no evidence that it affects the ultimate outcome or natural history of the disease Severe acute and chronic allergic and inflammatory processes involving the eye and its adnexa such as: keratitis, iritis, iridocyclitis, diffuse posterior uveitis and choroiditis, optic neuritis, chorioretinitis, anterior segment inflammation Symptomatic sarcoidosis Treatment during an exacerbation or as maintenance therapy in selected cases of systemic lupus erythematosus Treatment during an exacerbation or as maintenance therapy in selected cases of systemic dermatomyositis (polymyositis) Adjunctive therapy for short-term administration (to tide the patient over an acute episode or exacerbation) in: psoriatic arthritis; rheumatoid arthritis, including juvenile rheumatoid arthritis (selected cases may require low-dose maintenance therapy); ankylosing spondylitis IMPORTANT SAFETY INFORMATION Contraindications Acthar is contraindicated: For intravenous administration In infants under 2 years of age who have suspected congenital infections With concomitant administration of live or live attenuated vaccines in patients receiving immunosuppressive doses of Acthar In patients with scleroderma, osteoporosis, systemic fungal infections, ocular herpes simplex, recent surgery, history of the presence of a peptic ulcer, congestive heart failure, uncontrolled hypertension, primary adrenocortical insufficiency, adrenocortical hyperfunction, or sensitivity to proteins of porcine origin Warnings and Precautions The adverse effects of Acthar are related primarily to its steroidogenic effects Acthar may increase susceptibility to new infection or reactivation of latent infections Suppression of the hypothalamic-pituitary-adrenal (HPA) axis may occur following prolonged therapy with the potential for adrenal insufficiency after withdrawal of the medication. Adrenal insufficiency may be minimized by tapering of the dose when discontinuing treatment. During recovery of the adrenal gland patients should be protected from the stress (e.g., trauma or surgery) by the use of corticosteroids. Monitor patients for effects of HPA axis suppression after stopping treatment Cushing's syndrome may occur during therapy but generally resolves after therapy is stopped. Monitor patients for signs and symptoms Acthar can cause elevation of blood pressure, salt and water retention, and hypokalemia. Monitor blood pressure and sodium and potassium levels Acthar often acts by masking symptoms of other diseases/disorders. Monitor patients carefully during and for a period following discontinuation of therapy Acthar can cause gastrointestinal (GI) bleeding and gastric ulcer. There is also an increased risk for perforation in patients with certain GI disorders. Monitor for signs of perforation and bleeding Acthar may be associated with central nervous system effects ranging from euphoria, insomnia, irritability, mood swings, personality changes, and severe depression to psychosis. Existing conditions may be aggravated Patients with comorbid disease may have that disease worsened. Caution should be used when prescribing Acthar in patients with diabetes and myasthenia gravis Prolonged use of Acthar may produce cataracts, glaucoma, and secondary ocular infections. Monitor for signs and symptoms Acthar is immunogenic and prolonged administration of Acthar may increase the risk of hypersensitivity reactions. Cases of anaphylaxis have been reported in the postmarketing setting. Neutralizing antibodies with chronic administration may lead to loss of endogenous ACTH and Acthar activity There may be an enhanced effect in patients with hypothyroidism and in those with cirrhosis of the liver Long-term use may have negative effects on growth and physical development in children. Monitor pediatric patients Decrease in bone density may occur. Bone density should be monitored in patients on long-term therapy Adverse Reactions Commonly reported postmarketing adverse reactions for Acthar include injection site reaction, asthenic conditions (including fatigue, malaise, asthenia, and lethargy), fluid retention (including peripheral swelling), insomnia, headache, and blood glucose increased The most common adverse reactions for the treatment of infantile spasms (IS) are increased risk of infections, convulsions, hypertension, irritability, and pyrexia. Some patients with IS progress to other forms of seizures; IS sometimes masks theses seizures, which may become visible once the clinical spasms from IS resolve Pregnancy Acthar may cause fetal harm when administered to a pregnant woman Please see full Prescribing Information for additional Important Safety Information. ABOUT MALLINCKRODT Mallinckrodt is a global business consisting of multiple wholly owned subsidiaries that develop, manufacture, market and distribute specialty pharmaceutical products and therapies. The company's Specialty Brands reportable segment's areas of focus include autoimmune and rare diseases in specialty areas like neurology, rheumatology, hepatology, nephrology, pulmonology, ophthalmology, and oncology; immunotherapy and neonatal respiratory critical care therapies; analgesics; and gastrointestinal products. Its Specialty Generics reportable segment includes specialty generic drugs and active pharmaceutical ingredients. To learn more about Mallinckrodt, visit . CAUTIONARY STATEMENTS RELATED TO FORWARD-LOOKING STATEMENTS This release contains forward-looking statements, including with regard to Acthar Gel (repository corticotropin injection), the Acthar Gel Single-Dose Pre-filled SelfJect™ Injector, the potential of these products to improve health and treatment outcomes, their potential impact on patients and the availability of Acthar Gel Single-Dose Pre-filled SelfJect Injector in the U.S. in the future. The statements are based on assumptions about many important factors, including the following, which could cause actual results to differ materially from those in the forward-looking statements: the effects of Mallinckrodt's recent emergence from bankruptcy; satisfaction of, and compliance with, regulatory and other requirements; actions of regulatory bodies and other governmental authorities; changes in laws and regulations; changes in market demand; issues with product quality, manufacturing or supply, or patient safety issues or adverse side effects or adverse reactions associated with Acthar Gel and Acthar Gel Single-Dose Pre-filled SelfJect Injector; and other risks identified and described in more detail in the "Risk Factors" and "Management's Discussion and Analysis of Financial Condition and Results of Operations" sections of Mallinckrodt's most recent Annual Report on Form 10-K and other filings with the SEC, all of which are available on its website. The forward-looking statements made herein speak only as of the date hereof and Mallinckrodt does not assume any obligation to update or revise any forward-looking statement, whether as a result of new information, future events and developments or otherwise, except as required by law. CONTACT Media Inquiries Green Room Communications 908-577-4531 [email protected] Investor Relations Derek Belz Vice President, Investor Relations 314-654-3950 [email protected] Mallinckrodt, the "M" brand mark, SelfJect, and the Mallinckrodt Pharmaceuticals logo are trademarks of a Mallinckrodt company. Other brands are trademarks of a Mallinckrodt company or their respective owners. ©2024 Mallinckrodt. US-2400528 08/24 References 1 Acthar® Gel (repository corticotropin injection) [prescribing information]. Bridgewater, NJ: Mallinckrodt ARD LLC. 2 Acthar® Gel (repository corticotropin injection) [Instructions for Use (40 U)]. Bridgewater, NJ: Mallinckrodt ARD LLC. 3 Acthar® Gel (repository corticotropin injection) [Instructions for Use (80 U)]. Bridgewater, NJ: Mallinckrodt ARD LLC. 4 Data on File – ref-07435. Mallinckrodt Pharmaceuticals, Inc. 5 Data on File – ref-07341. Mallinckrodt Pharmaceuticals, Inc. 6 Data on File – ref-07530. Mallinckrodt Pharmaceuticals, Inc. 7 Data on File – ref-05336. Mallinckrodt Pharmaceuticals, Inc. SOURCE Mallinckrodt plc