The Janssen Pharmaceutical Companies of Johnson & Johnson today announced the submission of a supplemental Biologics License Application (sBLA) to the U.S. Food and Drug Administration (FDA) seeking expanded approval of STELARA^??(ustekinumab) to treat pediatric patients ages 5 years and older with juvenile psoriatic arthritis (jPsA). The filing is supported by extrapolation of data from nine studies across both adult trials in active PsA and adult and pediatric studies in moderate to severe plaque psoriasis, totaling 3,997 patients evaluated across these closely associated diseases. Data extrapolation is the process of estimating response, trends or effects based on previous observations from patients with closely related conditions. With the limited availability of pediatric patients for clinical trial inclusion, researchers can extrapolate data from trials with adults to determine the potential efficacy and tolerability of a treatment for a pediatric population. A decision from the U.S. FDA is anticipated in late 2022. "As children and their families manage the debilitating symptoms of juvenile psoriatic arthritis, it is critical that their physicians have a breadth of treatment options to consider," said?Alyssa Johnsen, M.D., Ph.D., Vice President, Rheumatology Disease Area Leader, Janssen Research & Development, LLC. "With this latest submission, we're excited to work with the U.S. FDA to evaluate this potential therapeutic option that could help meet the needs of children living with psoriatic arthritis." STELARA is the first and only biologic targeting both cytokines interleukin (IL)-12 and IL-23, both of which play an important role in inflammation associated with immune-mediated diseases like PsA. Since receiving approval in?September 2009?for the treatment of adults living with moderate to severe plaque psoriasis, STELARA has received approval for four additional indications: children (ages 6 and older) with moderate to severe plaque psoriasis, adults with active PsA, adults with moderately to severely active Crohn's disease and adults with moderately to severely active ulcerative colitis. Juvenile arthritis occurs in an estimated 20 to 45 children per 100,000 children in the U.S., with approximately 5 percent of those children having jPsA.¹?jPsA is characterized by both joint inflammation and psoriatic skin lesions that resemble adult PsA.²?PsA can be a challenging disease to treat especially in younger populations, reinforcing the need for additional treatment options. "We're pleased to add data for pediatric patients with juvenile psoriatic arthritis to the current body of evidence for STELARA," said?Andrew Greenspan, M.D., Vice President, Immunology Medical Affairs, Janssen Scientific Affairs, LLC. "This submission reinforces our commitment to these patients and we are pleased to be taking these positive steps that could make this treatment option available." About STELARA^??(ustekinumab)
STELARA (ustekinumab), a human IL-12 and IL-23 antagonist, is approved in?the United States?for the treatment of: 1) adults and children 6 years and older with moderate to severe plaque psoriasis who are candidates for phototherapy or systemic therapy; 2) adult patients (18 years or older) with active PsA, used alone or in combination with methotrexate; 3) adult patients (18 years and older) with moderately to severely active Crohn's disease; 4) adult patients (18 years and older) with moderately to severely active ulcerative colitis. IMPORTANT SAFETY INFORMATION
STELARA^??is a prescription medicine that affects your immune system. STELARA^??can increase your chance of having serious side effects including: Serious Infections
STELARA^??may lower your ability to fight infections and may increase your risk of infections. While taking STELARA^?, some people have serious infections, which may require hospitalization, including tuberculosis (TB), and infections caused by bacteria, fungi, or viruses.

• Your doctor should check you for TB before starting STELARA^??and watch you closely for signs and symptoms of TB during treatment with STELARA^?.
• If your doctor feels that you are at risk for TB, you may be treated for TB before and during treatment with STELARA^?.

You should not start taking STELARA^??if you have any kind of infection unless your doctor says it is okay. Before starting STELARA^?, tell your doctor if you:

• think you have an infection or have symptoms of an infection such as:
  • fever, sweats, or chills
  • muscle aches
  • cough
  • shortness of breath
  • blood in phlegm
  • weight loss
  • warm, red, or painful skin or sores on your body
  • diarrhea or stomach pain
  • burning when you urinate or urinate more often than normal
  • feel very tired
• are being treated for an infection.
• get a lot of infections or have infections that keep coming back.
• have TB or have been in close contact with someone with TB.

After starting STELARA^?, call your doctor right away?if you have any symptoms of an infection (see above). These may be signs of infections such as chest infections, or skin infections or shingles that could have serious complications. STELARA? can make you more likely to get infections or make an infection that you have worse. People who have a genetic problem where the body does not make any of the proteins interleukin 12 (IL-12) and interleukin 23 (IL-23) are at a higher risk for certain serious infections that can spread throughout the body and cause death. People who take STELARA? may also be more likely to get these infections. Cancers
STELARA^??may decrease the activity of your immune system and increase your risk for certain types of cancer. Tell your doctor if you have ever had any type of cancer. Some people who had risk factors for skin cancer developed certain types of skin cancers while receiving STELARA^?. Tell your doctor if you have any new skin growths. Posterior Reversible Encephalopathy Syndrome (PRES)
PRES is a rare condition that affects the brain and can cause death. The cause of PRES is not known. If PRES is found early and treated, most people recover. Tell your doctor right away if you have any new or worsening medical problems including: headache, seizures, confusion, and vision problems. Serious Allergic Reactions
Serious allergic reactions can occur. Stop using STELARA^??and get medical help right away if you have any symptoms of a serious allergic reaction such as: feeling faint, swelling of your face, eyelids, tongue, or throat, chest tightness, or skin rash. Lung Inflammation
Cases of lung inflammation have happened in some people who receive STELARA^??and may be serious. These lung problems may need to be treated in a hospital. Tell your doctor right away if you develop shortness of breath or a cough that doesn't go away during treatment with STELARA^?. Before receiving STELARA^?, tell your doctor about all of your medical conditions, including if you:

• have any of the conditions or symptoms listed above for serious infections, cancers, or PRES.
• ever had an allergic reaction to STELARA^??or any of its ingredients. Ask your doctor if you are not sure.
• are allergic to latex. The needle cover on the prefilled syringe contains latex.
• have recently received or are scheduled to receive an immunization (vaccine). People who take STELARA^??should not receive live vaccines. Tell your doctor if anyone in your house needs a live vaccine. The viruses used in some types of live vaccines can spread to people with a weakened immune system, and can cause serious problems.?You should not receive the BCG vaccine during the one year before receiving STELARA^??or one year after you stop receiving STELARA^?.
• have any new or changing lesions within psoriasis areas or on normal skin.
• are receiving or have received allergy shots, especially for serious allergic reactions.
• receive or have received phototherapy for your psoriasis.
• are pregnant or plan to become pregnant. It is not known if STELARA^??can harm your unborn baby. You and your doctor should decide if you will receive STELARA^?.
• are breastfeeding or plan to breastfeed. It is thought that STELARA^??passes into your breast milk.
• talk to your doctor about the best way to feed your baby if you receive STELARA^?.

Tell your doctor about all the medicines you take, including prescription and over?the?counter medicines, vitamins, and herbal supplements. Know the medicines you take. Keep a list of them to show your doctor and pharmacist when you get a new medicine. When prescribed STELARA^?:

• Use STELARA^??exactly as your doctor tells you to.
• STELARA^??is intended for use under the guidance and supervision of your doctor. In children 6 years and older, it is recommended that STELARA^??be administered by a healthcare provider. If your doctor decides that you or a caregiver may give your injections of STELARA^??at home, you should receive training on the right way to prepare and inject STELARA^?. Your doctor will determine the right dose of STELARA^??for you, the amount for each injection, and how often you should receive it. Do not try to inject STELARA^??yourself until you or your caregiver have been shown how to inject STELARA^??by your doctor or nurse.

Common side effects of STELARA^??include:?nasal congestion, sore throat, and runny nose, upper respiratory infections, fever, headache, tiredness, itching, nausea and vomiting, redness at the injection site, vaginal yeast infections, urinary tract infections, sinus infection, bronchitis, diarrhea, stomach pain, and joint pain. These are not all of the possible side effects with STELARA?. Tell your doctor about any side effect that you experience. Ask your doctor or pharmacist for more information. Please read the full?Prescribing Information?and?Medication Guide?for STELARA^??and discuss any questions you have with your doctor. 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. cp-124932v3 About the Janssen Pharmaceutical Companies of Johnson & Johnson
At Janssen, we're creating a future where disease is a thing of the past. We're the Janssen Pharmaceutical Companies of Johnson & Johnson, working tirelessly to make that future a reality for patients everywhere by fighting sickness with science, improving access with ingenuity, and healing hopelessness with heart. We focus on areas of medicine where we can make the biggest difference: Cardiovascular & Metabolism, Immunology, Infectious Diseases & Vaccines, Neuroscience, Oncology, and Pulmonary Hypertension. Learn more at?www.janssen.com. Follow us at?www.twitter.com/JanssenGlobal?and?www.twitter.com/JanssenUS. Janssen Research & Development, LLC, Janssen Biotech, Inc. and Janssen Scientific Affairs, LLC are part of the Janssen Pharmaceutical Companies of Johnson & Johnson. Cautions Concerning Forward-Looking Statements
This press release contains "forward-looking statements" as defined in the Private Securities Litigation Reform Act of 1995 regarding STELARA?. The reader is cautioned not to rely on these forward-looking statements. These statements are based on current expectations of future events. If underlying assumptions prove inaccurate or known or unknown risks or uncertainties materialize, actual results could vary materially from the expectations and projections of Janssen Research & Development, LLC, any of the other Janssen Pharmaceutical Companies and/or Johnson & Johnson. Risks and uncertainties include, but are not limited to: challenges and uncertainties inherent in product research and development, including the uncertainty of clinical success and of obtaining regulatory approvals; uncertainty of commercial success; manufacturing difficulties and delays; competition, including technological advances, new products and patents attained by competitors; challenges to patents; product efficacy or safety concerns resulting in product recalls or regulatory action; changes in behavior and spending patterns of purchasers of health care products and services; changes to applicable laws and regulations, including global health care reforms; and trends toward health care cost containment. A further list and descriptions of these risks, uncertainties and other factors can be found in Johnson & Johnson's Annual Report on Form 10-K for the fiscal year ended?January 3, 2021, including in the sections captioned "Cautionary Note Regarding Forward-Looking Statements" and "Item 1A. Risk Factors," and in the company's most recently filed Quarterly Report on Form 10-Q, and the company's subsequent filings with the Securities and Exchange Commission. Copies of these filings are available online at?www.sec.gov,?www.jnj.com?or on request from Johnson & Johnson. None of the Janssen Pharmaceutical Companies nor Johnson & Johnson undertakes to update any forward-looking statement as a result of new information or future events or developments. ¹?National Psoriasis Foundation. PsA in Kids and Teens. Accessed?October 1, 2021. Available at?https://www.psoriasis.org/advance/psa-in-kids-and-teens/. ^2?Stoll ML, Punaro M. Psoriatic juvenile idiopathic arthritis: a tale of two subgroups.?Curr Opin Rheumatol. 2011;23(5):437-443. SOURCE Janssen Pharmaceutical Companies of Johnson & Johnson

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