Dupilumab

1 INDICATIONS AND USAGE DUPIXENT is an interleukin-4 receptor alpha antagonist indicated: Atopic Dermatitis for the treatment of adult and pediatric patients aged 6 months and older with moderate-to-severe AD whose disease is not adequately controlled with topical prescription therapies or when those therapies are not advisable. DUPIXENT can be used with or without topical corticosteroids. ( 1.1 ) Asthma as an add-on maintenance treatment of adult and pediatric patients aged 6 years and older with moderate-to-severe asthma characterized by an eosinophilic phenotype or with oral corticosteroid dependent asthma. ( 1.2 ) Limitations of Use: Not for the relief of acute bronchospasm or status asthmaticus. ( 1.2 ) Chronic Rhinosinusitis with Nasal Polyps as an add-on maintenance treatment in adult and pediatric patients aged 12 years and older with inadequately controlled chronic rhinosinusitis with nasal polyps (CRSwNP). ( 1.3 ) Eosinophilic Esophagitis for the treatment of adult and pediatric patients aged 1 year and older, weighing at least 15 kg, with eosinophilic esophagitis (EoE). ( 1.4 ) Prurigo Nodularis for the treatment of adult patients with prurigo nodularis (PN). ( 1.5 ) Chronic Obstructive Pulmonary Disease as an add-on maintenance treatment of adult patients with inadequately controlled chronic obstructive pulmonary disease (COPD) and an eosinophilic phenotype. ( 1.6 ) Limitations of Use: Not for the relief of acute bronchospasm. ( 1.6 ) Chronic Spontaneous Urticaria for the treatment of adult and pediatric patients aged 2 years and older with chronic spontaneous urticaria (CSU) who remain symptomatic despite H1 antihistamine treatment. ( 1.7 ) Limitations of Use: Not indicated for other forms of urticaria. ( 1.7 ) Bullous Pemphigoid for the treatment of adult patients with bullous pemphigoid (BP). ( 1.8 ) Allergic Fungal Rhinosinusitis for the treatment of adult and pediatric patients aged 6 years and older with allergic fungal rhinosinusitis (AFRS) who have a history of sino-nasal surgery. ( 1.9 ) 1.1 Atopic Dermatitis DUPIXENT is indicated for the treatment of adult and pediatric patients aged 6 months and older with moderate-to-severe atopic dermatitis (AD) whose disease is not adequately controlled with topical prescription therapies or when those therapies are not advisable. DUPIXENT can be used with or without topical corticosteroids. 1.2 Asthma DUPIXENT is indicated as an add-on maintenance treatment of adult and pediatric patients aged 6 years and older with moderate-to-severe asthma characterized by an eosinophilic phenotype or with oral corticosteroid dependent asthma. Limitations of Use DUPIXENT is not indicated for the relief of acute bronchospasm or status asthmaticus. 1.3 Chronic Rhinosinusitis with Nasal Polyps DUPIXENT is indicated as an add-on maintenance treatment in adult and pediatric patients aged 12 years and older with inadequately controlled chronic rhinosinusitis with nasal polyps (CRSwNP). 1.4 Eosinophilic Esophagitis DUPIXENT is indicated for the treatment of adult and pediatric patients aged 1 year and older, weighing at least 15 kg, with eosinophilic esophagitis (EoE). 1.5 Prurigo Nodularis DUPIXENT is indicated for the treatment of adult patients with prurigo nodularis (PN). 1.6 Chronic Obstructive Pulmonary Disease DUPIXENT is indicated as an add-on maintenance treatment of adult patients with inadequately controlled chronic obstructive pulmonary disease (COPD) and an eosinophilic phenotype. Limitations of Use DUPIXENT is not indicated for the relief of acute bronchospasm. 1.7 Chronic Spontaneous Urticaria DUPIXENT is indicated for the treatment of adult and pediatric patients aged 2 years and older with chronic spontaneous urticaria (CSU) who remain symptomatic despite H1 antihistamine treatment. Limitations of Use: DUPIXENT is not indicated for treatment of other forms of urticaria. 1.8 Bullous Pemphigoid DUPIXENT is indicated for the treatment of adult patients with bullous pemphigoid (BP). 1.9 Allergic Fungal Rhinosinusitis DUPIXENT is indicated for the treatment of adult and pediatric patients aged 6 years and older with allergic fungal rhinosinusitis (AFRS) who have a history of sino-nasal surgery.

5 WARNINGS AND PRECAUTIONS Hypersensitivity: Hypersensitivity reactions including anaphylaxis, acute generalized exanthematous pustulosis (AGEP), serum sickness, angioedema, urticaria, rash, erythema nodosum, and erythema multiforme have occurred. Discontinue DUPIXENT in the event of a hypersensitivity reaction. ( 5.1 ) Conjunctivitis, Keratitis, and Blepharitis: Advise patients to promptly report new onset or worsening eye symptoms to their healthcare provider. If symptoms persist or worsen, consider discontinuation of DUPIXENT. Consider ophthalmological examination, as appropriate. ( 5.2 ) Eosinophilic Conditions: Be alert to vasculitic rash, worsening pulmonary symptoms, cardiac complications, kidney injury and/or neuropathy, especially upon reduction of oral corticosteroids. ( 5.3 ) Reduction of Corticosteroid Dosage: Do not discontinue systemic, topical, or inhaled corticosteroids abruptly upon initiation of DUPIXENT. Decrease steroids gradually, if appropriate. ( 5.5 ) Psoriasis: Advise patients to report new-onset psoriasis symptoms to their healthcare provider. If symptoms persist or worsen, consider dermatologic evaluation and/or discontinuation of DUPIXENT. ( 5.7 ) Arthralgia and Psoriatic Arthritis: Advise patients to report new onset joint symptoms to their healthcare provider. If symptoms persist or worsen, consider rheumatological evaluation and/or discontinuation of DUPIXENT. ( 5.8 ) Parasitic (Helminth) Infections: Treat pre-existing helminth infections before initiating DUPIXENT. If patients become infected while receiving DUPIXENT and do not respond to anti-helminth treatment, discontinue DUPIXENT until the infection resolves. ( 5.9) Vaccinations: Avoid use of live vaccines. ( 5.10 ) 5.1 Hypersensitivity Hypersensitivity reactions, including anaphylaxis, acute generalized exanthematous pustulosis (AGEP), serum sickness or serum sickness-like reactions, angioedema, generalized urticaria, rash, erythema nodosum and erythema multiforme have been reported. A case of AGEP was reported in an adult subject who participated in the bullous pemphigoid development program. If a clinically significant hypersensitivity reaction occurs, institute appropriate therapy and discontinue DUPIXENT [see Adverse Reactions (6.1 , 6.2) and Clinical Pharmacology (12.6) ] . 5.2 Conjunctivitis, Keratitis, and Blepharitis Conjunctivitis and keratitis adverse reactions have been reported in clinical trials [see Adverse Reactions (6.1) ] . Conjunctivitis and keratitis occurred more frequently in AD subjects who received DUPIXENT compared to those who received placebo. Conjunctivitis was the most frequently reported eye disorder. Most subjects with conjunctivitis or keratitis recovered or were recovering during the treatment period. Among subjects with asthma, the frequencies of conjunctivitis and keratitis were similar between DUPIXENT and placebo. In adult subjects with CRSwNP, the frequency of conjunctivitis was 2% in the DUPIXENT group compared to 1% in the placebo group in the 24-week safety pool; these subjects recovered. Among subjects with EoE, there were no reports of conjunctivitis and keratitis in the DUPIXENT group in placebo-controlled trials. In subjects with PN, the frequency of conjunctivitis was 4% in the DUPIXENT group compared to 1% in the placebo group; these subjects recovered or were recovering during the treatment period. Among subjects with COPD, the frequency of conjunctivitis and keratitis was 1.4% and 0.1% in the DUPIXENT group and 1% and 0% in the placebo group, respectively. In subjects with CSU, the frequency of conjunctivitis was similar between DUPIXENT and placebo. Among subjects with BP, the frequency of conjunctivitis and keratitis was 7.5% and 3.8% in the DUPIXENT group and 0% and 0% in the placebo group, respectively. Conjunctivitis, keratitis, and blepharitis adverse reactions have also been reported with DUPIXENT in postmarketing settings, predominantly in AD patients. Some patients reported varying degrees of transient or ongoing visual impairment including blindness associated with conjunctivitis, keratitis, or blepharitis leading to discontinuation of DUPIXENT and/or surgical intervention. Advise patients or their caregivers to promptly report new onset or worsening eye symptoms to their healthcare provider. Consider discontinuation of DUPIXENT and prompt ophthalmological examination for patients who develop signs and symptoms suggestive of keratitis, or when conjunctivitis or blepharitis do not resolve following standard treatment, as appropriate. Use with caution in patients with significant dry eye disease, history of significant lid abnormalities/surgeries, or history of nasolacrimal surgery [see Adverse Reactions (6.1 , 6.2) ] . 5.3 Eosinophilic Conditions Patients being treated for asthma may present with clinical features of eosinophilic pneumonia or eosinophilic granulomatosis with polyangiitis (EGPA). These events may be associated with the reduction of oral corticosteroid therapy. Healthcare providers should be alert to vasculitic rash, worsening pulmonary symptoms, cardiac complications, kidney injury, and/or neuropathy presenting in their patients with eosinophilia. Cases of eosinophilic pneumonia were reported in adults who participated in the asthma development program. Cases of EGPA have been reported with DUPIXENT in adults who participated in the asthma development program as well as in adults with co-morbid asthma in the CRSwNP development program. Advise patients to report signs of eosinophilic pneumonia and EGPA to their healthcare provider. Consider withholding DUPIXENT if eosinophilic pneumonia or EGPA are suspected. 5.4 Acute Symptoms of Asthma or Chronic Obstructive Pulmonary Disease or Acute Deteriorating Disease DUPIXENT should not be used to treat acute symptoms or acute exacerbations of asthma or COPD. Do not use DUPIXENT to treat acute bronchospasm or status asthmaticus. Patients should seek medical advice if their asthma or COPD remains uncontrolled or worsens after initiation of treatment with DUPIXENT. 5.5 Risk Associated with Abrupt Reduction of Corticosteroid Dosage Do not discontinue systemic, topical, or inhaled corticosteroids abruptly upon initiation of therapy with DUPIXENT. Reductions in corticosteroid dose, if appropriate, should be gradual and performed under the direct supervision of a healthcare provider. Reduction in corticosteroid dose may be associated with systemic withdrawal symptoms and/or unmask conditions previously suppressed by systemic corticosteroid therapy. 5.6 Patients with Co-morbid Asthma Advise patients with co-morbid asthma not to adjust or stop their asthma treatments without consultation with their physicians. 5.7 Psoriasis Cases of new-onset psoriasis have been reported with the use of DUPIXENT for the treatment of atopic dermatitis and asthma, including in patients without a family history of psoriasis. In postmarketing reports, onset of psoriasis varied from weeks to months after the first dose of DUPIXENT and resulted in partial or complete resolution of psoriasis with discontinuation of dupilumab, with or without use of supplemental treatment for psoriasis (topical or systemic). Those who continued on dupilumab received supplemental treatment for psoriasis to improve associated symptoms. Advise patients to report new-onset psoriasis symptoms to their healthcare provider. If symptoms persist or worsen, consider dermatologic evaluation and/or discontinuation of DUPIXENT. 5.8 Arthralgia and Psoriatic Arthritis Arthralgia has been reported with the use of DUPIXENT with some patients reporting gait disturbances or decreased mobility associated with joint symptoms; some cases resulted in hospitalization [see Adverse Reactions (6.1) ] . In postmarketing reports, onset of arthralgia was variable, ranging from days to months after the first dose of DUPIXENT. Cases of new-onset psoriatic arthritis requiring systemic treatment have been reported with the use of DUPIXENT. Some patients’ symptoms resolved while continuing treatment with DUPIXENT, and other patients recovered or were recovering following discontinuation of DUPIXENT. Advise patients to report new onset or worsening joint symptoms to their healthcare provider. If symptoms persist or worsen, consider rheumatological evaluation and/or discontinuation of DUPIXENT. 5.9 Parasitic (Helminth) Infections Patients with known helminth infections were excluded from participation in clinical studies. It is unknown if DUPIXENT will influence the immune response against helminth infections. Treat patients with pre-existing helminth infections before initiating therapy with DUPIXENT. If patients become infected while receiving treatment with DUPIXENT and do not respond to anti-helminth treatment, discontinue treatment with DUPIXENT until the infection resolves. Adverse reactions of helminth infections (5 cases of enterobiasis and 1 case of ascariasis) were reported in pediatric subjects 6 to 11 years old who participated in the pediatric asthma development program [see Adverse Reactions (6.1) ] . 5.10 Vaccinations Consider completing all age-appropriate vaccinations as recommended by current immunization guidelines prior to initiating treatment with DUPIXENT. Avoid use of live vaccines during treatment with DUPIXENT. It is unknown if administration of live vaccines during DUPIXENT treatment will impact the safety or effectiveness of these vaccines. Limited data are available regarding coadministration of DUPIXENT with non-live vaccines [see Clinical Pharmacology (12.2) ] .

6 ADVERSE REACTIONS The following clinically significant adverse reactions are described elsewhere in the labeling: Hypersensitivity [see Warnings and Precautions (5.1) ] Conjunctivitis and Keratitis [see Warnings and Precautions (5.2) ] Psoriasis [see Warnings and Precautions (5.7) ] Arthralgia and Psoriatic Arthritis [see Warnings and Precautions (5.8) ] Parasitic (Helminth) Infections [see Warnings and Precautions (5.9) ] Most common adverse reactions are: Atopic Dermatitis (incidence ≥1%): injection site reactions, conjunctivitis, blepharitis, oral herpes, keratitis, eye pruritus, other herpes simplex virus infection, dry eye, and eosinophilia. ( 6.1 ) Asthma (incidence ≥1%): injection site reactions, oropharyngeal pain, and eosinophilia. ( 6.1 ) Chronic Rhinosinusitis with Nasal Polyps (incidence ≥1%): injection site reactions, eosinophilia, insomnia, toothache, gastritis, arthralgia, and conjunctivitis. ( 6.1 ) Eosinophilic Esophagitis (incidence ≥2%): injection site reactions, upper respiratory tract infections, arthralgia, and herpes viral infections. ( 6.1 ) Prurigo Nodularis (incidence ≥2%): nasopharyngitis, conjunctivitis, herpes infection, dizziness, myalgia, and diarrhea. ( 6.1 ) Chronic Obstructive Pulmonary Disease (incidence ≥2%): viral infection, headache, nasopharyngitis, back pain, diarrhea, arthralgia, urinary tract infection, local administration reactions, rhinitis, eosinophilia, toothache, and gastritis. ( 6.1 ) Chronic Spontaneous Urticaria (incidence ≥2%): injection site reactions. ( 6.1 ) Bullous Pemphigoid (incidence ≥2%): arthralgia, conjunctivitis, vision blurred, herpes viral infections, keratitis. ( 6.1 ) Allergic Fungal Rhinosinusitis: similar to adverse reactions for Chronic Rhinosinusitis with Nasal Polyps. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Regeneron at 1-844-387-4936 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. Atopic Dermatitis Adults with Atopic Dermatitis Three randomized, double-blind, placebo-controlled, multicenter trials (SOLO 1, SOLO 2, and CHRONOS) and one dose-ranging trial (AD-1021) evaluated the safety of DUPIXENT in subjects with moderate-to-severe atopic dermatitis (AD) [see Clinical Studies (14.1) ] . In terms of co-morbid conditions, 48% of the subjects had asthma, 49% had allergic rhinitis, 37% had food allergy, and 27% had allergic conjunctivitis. In these 4 trials, 1472 subjects were treated with subcutaneous injections of DUPIXENT, with or without concomitant topical corticosteroids (TCS). A total of 739 subjects were treated with DUPIXENT for at least 1 year in the development program for moderate-to-severe AD. SOLO 1, SOLO 2, and AD-1021 compared the safety of DUPIXENT monotherapy to placebo through Week 16. CHRONOS compared the safety of DUPIXENT + TCS to placebo + TCS through Week 52. AD-1225 is a multicenter, open-label extension (OLE) trial which assessed the long-term safety of repeat doses of DUPIXENT through 260 weeks of treatment in adults with moderate-to-severe AD who had previously participated in controlled trials of DUPIXENT or had been screened for SOLO 1 or SOLO 2. The safety data in AD-1225 reflect exposure to DUPIXENT 200 mg QW, 300 mg QW and 300 mg Q2W in 2677 subjects, including 2254 exposed for at least 52 weeks, 1224 exposed for at least 100 weeks, 561 exposed for at least 148 weeks and 179 exposed for at least 260 weeks. Weeks 0 to 16 (SOLO 1, SOLO 2, CHRONOS, and AD-1021) In DUPIXENT monotherapy trials (SOLO 1, SOLO 2, and AD-1021) through Week 16, the proportion of subjects who discontinued treatment because of adverse events was 1.9% in both the DUPIXENT 300 mg Q2W and placebo groups. Table 9 summarizes the adverse reactions that occurred at a rate of at least 1% in the DUPIXENT 300 mg Q2W monotherapy groups, and in the DUPIXENT + TCS group, all at a higher rate than in their respective comparator groups during the first 16 weeks of treatment. Table 9: Adverse Reactions Occurring in ≥1% of the DUPIXENT Monotherapy Group or the DUPIXENT + TCS Group in the Atopic Dermatitis Trials through Week 16 Adverse Reaction DUPIXENT Monotherapy Pooled analysis of SOLO 1, SOLO 2, and AD-1021. DUPIXENT + TCS Analysis of CHRONOS where subjects were on background TCS therapy. DUPIXENT 300 mg Q2W DUPIXENT 600 mg at Week 0, followed by 300 mg every 2 weeks. Placebo DUPIXENT 300 mg Q2W + TCS Placebo + TCS N=529 n (%) N=517 n (%) N=110 n (%) N=315 n (%) Injection site reaction 51 (10) 28 (5) 11 (10) 18 (6) Conjunctivitis Conjunctivitis cluster includes conjunctivitis, allergic conjunctivitis, bacterial conjunctivitis, viral conjunctivitis, giant papillary conjunctivitis, eye irritation, and eye inflammation. 51 (10) 12 (2) 10 (9) 15 (5) Blepharitis 2 (<1) 1 (<1) 5 (5) 2 (1) Oral herpes 20 (4) 8 (2) 3 (3) 5 (2) Keratitis Keratitis cluster includes keratitis, ulcerative keratitis, allergic keratitis, atopic keratoconjunctivitis, and ophthalmic herpes simplex. 1 (<1) 0 4 (4) 0 Eye pruritus 3 (1) 1 (<1) 2 (2) 2 (1) Other herpes simplex virus infection Other herpes simplex virus infection cluster includes herpes simplex, genital herpes, herpes simplex otitis externa, and herpes virus infection, but excludes eczema herpeticum. 10 (2) 6 (1) 1 (1) 1 (<1) Dry eye 1 (<1) 0 2 (2) 1 (<1) Safety through Week 52 (CHRONOS) In the DUPIXENT with concomitant TCS trial (CHRONOS) through Week 52, the proportion of subjects who discontinued treatment because of adverse events was 1.8% in DUPIXENT 300 mg Q2W + TCS group and 7.6% in the placebo + TCS group. Two subjects discontinued DUPIXENT because of adverse reactions: atopic dermatitis (1 subject) and exfoliative dermatitis (1 subject). The safety profile of DUPIXENT + TCS through Week 52 was generally consistent with the safety profile observed at Week 16. Safety through 260 Weeks (AD-1225) The long-term safety profile observed in this trial through 260 weeks was generally consistent with the safety profile of DUPIXENT observed in controlled studies. Pediatric Subjects 12 Years of Age and Older with Atopic Dermatitis The safety of DUPIXENT was assessed in a trial of 250 pediatric subjects 12 years of age and older with moderate-to-severe AD (AD-1526). The safety profile of DUPIXENT in these subjects through Week 16 was similar to the safety profile seen in adults with AD. The long-term safety of DUPIXENT was assessed in an open-label extension study in pediatric subjects 12 years of age and older with moderate-to-severe AD (AD-1434). The safety profile of DUPIXENT in subjects followed through Week 52 was similar to the safety profile observed at Week 16 in AD-1526. The long-term safety profile of DUPIXENT observed in pediatric subjects 12 years of age and older was consistent with that seen in adults with AD. Pediatric Subjects 6 to 11 Years of Age with Atopic Dermatitis The safety of DUPIXENT with concomitant TCS was assessed in a trial of 367 pediatric subjects 6 to 11 years of age with severe AD (AD-1652). The safety profile of DUPIXENT + TCS in these subjects through Week 16 was similar to the safety profile from trials in adult and pediatric subjects 12 years of age and older with AD. The long-term safety of DUPIXENT ± TCS was assessed in an open-label extension study of 368 pediatric subjects 6 to 11 years of age with AD (AD-1434). Among subjects who entered this study, 110 (30%) had moderate and 72 (20%) had severe AD at the time of enrollment in AD-1434. The safety profile of DUPIXENT ± TCS in subjects followed through Week 52 was similar to the safety profile observed through Week 16 in AD-1652. The long-term safety profile of DUPIXENT ± TCS observed in pediatric subjects 6 to 11 years of age was consistent with that seen in adult and pediatric subjects 12 years of age and older with AD. Pediatric Subjects 6 Months to 5 Years of Age with Atopic Dermatitis The safety of DUPIXENT with concomitant TCS was assessed in a trial of 161 pediatric subjects 6 months to 5 years of age with moderate-to-severe AD (AD-1539). The safety profile of DUPIXENT + TCS in these subjects through Week 16 was similar to the safety profile from trials in adults and pediatric subjects 6 years of age and older with AD. The long-term safety of DUPIXENT ± TCS was assessed in an open-label extension study of 180 pediatric subjects 6 months to 5 years of age with AD (AD-1434). The majority of subjects were treated with DUPIXENT 300 mg every 4 weeks. The safety profile of DUPIXENT ± TCS in subjects followed through Week 52 was similar to the safety profile observed through Week 16 in AD-1539. The long-term safety profile of DUPIXENT ± TCS observed in pediatric subjects 6 months to 5 years of age was consistent with that seen in adults and pediatric subjects 6 years of age and older with AD. In addition, hand-foot-and-mouth disease was reported in 9 (5%) pediatric subjects and skin papilloma was reported in 4 (2%) pediatric subjects treated with DUPIXENT ± TCS. These cases did not lead to study drug discontinuation. Atopic Dermatitis with Hand and/or Foot Involvement The safety of DUPIXENT was assessed in a 16-week, multicenter, randomized, double-blind, parallel-group, placebo-controlled trial (Liberty-AD-HAFT) in 133 adult and pediatric subjects 12 to 17 years of age with atopic dermatitis with moderate-to-severe hand and/or foot involvement [see Clinical Studies (14) ] . In this trial 67 subjects received DUPIXENT, and 66 subjects received placebo. DUPIXENT-treated subjects received the recommended dosage based on their age and body weight [see Dosage and Administration (2.3) ] . The safety profile of DUPIXENT in these subjects through Week 16 was consistent with the safety profile from studies in adult and pediatric subjects 6 months of age and older with moderate-to-severe AD. Asthma Adults and Pediatric Subjects 12 Years of Age and Older with Asthma A total of 2888 adult and pediatric subjects 12 to 17 years of age with moderate-to-severe asthma (AS) were evaluated in 3 randomized, placebo-controlled, multicenter trials of 24 to 52 weeks duration (DRI12544, QUEST, and VENTURE). Of these, 2678 had a history of 1 or more severe exacerbations in the year prior to enrollment despite regular use of medium to high-dose inhaled corticosteroids plus an additional controller(s) (DRI12544 and QUEST). A total of 210 subjects with oral corticosteroid-dependent asthma receiving high-dose inhaled corticosteroids plus up to two additional controllers were enrolled (VENTURE). The safety population (DRI12544 and QUEST) was 12-87 years of age, of which 63% were female, and 82% were White. DUPIXENT 200 mg or 300 mg was administered subcutaneously Q2W, following an initial dose of 400 mg or 600 mg, respectively. In DRI12544 and QUEST, the proportion of subjects who discontinued treatment due to adverse events was 4% of the placebo group, 3% of the DUPIXENT 200 mg Q2W group, and 6% of the DUPIXENT 300 mg Q2W group. Table 10 summarizes the adverse reactions that occurred at a rate of at least 1% in subjects treated with DUPIXENT and at a higher rate than in their respective comparator groups in DRI12544 and QUEST. Table 10: Adverse Reactions Occurring in ≥1% of Adult and Pediatric Subjects 12 Years of Age and Older with Asthma in the DUPIXENT Groups in DRI12544 and QUEST and Greater than Placebo (6 Month Safety Pool) Adverse Reaction DRI12544 and QUEST DUPIXENT 200 mg Q2W DUPIXENT 300 mg Q2W Placebo N=779 n (%) N=788 n (%) N=792 n (%) Injection site reactions Injection site reactions cluster includes erythema, edema, pruritus, pain, and inflammation. 111 (14%) 144 (18%) 50 (6%) Oropharyngeal pain 13 (2%) 19 (2%) 7 (1%) Eosinophilia Eosinophilia = blood eosinophils ≥3,000 cells/mcL or deemed by the investigator to be an adverse event. None met the criteria for serious eosinophilic conditions [see Warnings and Precautions (5.3) ] . 17 (2%) 16 (2%) 2 (<1%) Injection site reactions were most common with the loading (initial) dose. The safety profile of DUPIXENT through Week 52 was generally consistent with the safety profile observed at Week 24. Pediatric Subjects 6 to 11 Years of Age with Asthma The safety of DUPIXENT was assessed in 405 pediatric subjects 6 to 11 years of age with moderate-to-severe asthma (VOYAGE). The safety profile of DUPIXENT in these subjects through Week 52 was similar to the safety profile from studies in adult and pediatric subjects 12 years of age and older with moderate-to-severe asthma with the addition of helminth infections. Helminth infections were reported in 2.2% (6 subjects) in the DUPIXENT group and 0.7% (1 subject) in the placebo group. The majority of cases were enterobiasis, reported in 1.8% (5 subjects) in the DUPIXENT group and none in the placebo group. There was one case of ascariasis in the DUPIXENT group. All helminth infection cases were mild to moderate and subjects recovered with anti-helminth treatment without DUPIXENT treatment discontinuation. Chronic Rhinosinusitis with Nasal Polyps A total of 722 adult subjects with chronic rhinosinusitis with nasal polyps (CRSwNP) were evaluated in 2 randomized, placebo-controlled, multicenter trials of 24 to 52 weeks duration (SINUS-24 and SINUS-52). The safety pool consisted of data from the first 24 weeks of treatment from both studies. In the safety pool, the proportion of adult subjects who discontinued treatment due to adverse events was 5% of the placebo group and 2% of the DUPIXENT 300 mg Q2W group. Table 11 summarizes the adverse reactions that occurred at a rate of at least 1% in adult subjects treated with DUPIXENT and at a higher rate than in their respective comparator group in SINUS-24 and SINUS-52. Table 11: Adverse Reactions Occurring in ≥1% of Adult Subjects with CRSwNP in the DUPIXENT Group in SINUS-24 and SINUS-52 and Greater than Placebo (24-Week Safety Pool) Adverse Reaction SINUS-24 and SINUS-52 DUPIXENT 300 mg Q2W Placebo N=440 n (%) N=282 n (%) Injection site reactions Injection site reactions cluster includes injection site reaction, pain, bruising and swelling. 28 (6%) 12 (4%) Conjunctivitis Conjunctivitis cluster includes conjunctivitis, allergic conjunctivitis, bacterial conjunctivitis, viral conjunctivitis, giant papillary conjunctivitis, eye irritation, and eye inflammation. 7 (2%) 2 (1%) Arthralgia 14 (3%) 5 (2%) Gastritis 7 (2%) 2 (1%) Insomnia 6 (1%) 0 (<1%) Eosinophilia 5 (1%) 1 (<1%) Toothache 5 (1%) 1 (<1%) The safety profile of DUPIXENT through Week 52 was generally consistent with the safety profile observed at Week 24. Eosinophilic Esophagitis Adults and Pediatric Subjects 12 Years of Age and Older with EoE A total of 239 adult and pediatric subjects 12 years of age and older, weighing at least 40 kg, with eosinophilic esophagitis (EoE) were evaluated in a randomized, double-blind, parallel-group, multicenter, placebo-controlled trial, including two 24-week treatment periods (Study EoE-1 Parts A and B) and received either DUPIXENT 300 mg QW or placebo [see Clinical Studies (14.4) ] . The proportion of subjects who discontinued treatment due to adverse events was 2% of the placebo group and 2% of the DUPIXENT 300 mg QW group. Table 12 summarizes the adverse reactions that occurred at a rate of at least 2% in subjects treated with DUPIXENT and at a higher rate than in their respective comparator group in Parts A and B. Table 12: Adverse Reactions Occurring in ≥2% of Adult and Pediatric Subjects 12 Years of Age and Older with EoE Treated with DUPIXENT in a Placebo-Controlled Trial (Study EoE-1 Parts A and B; 24-Week Safety Pool) Study EoE-1 Parts A and B Adverse Reaction DUPIXENT 300 mg QW N=122 n (%) Placebo N=117 n (%) Injection site reactions Injection site reactions are composed of several terms including, but not limited to, injection site swelling, pain, and bruising. 46 (38%) 39 (33%) Upper respiratory tract infections Upper respiratory tract infections are composed of several terms including, but not limited to, COVID-19, sinusitis, and upper respiratory tract infection. 22 (18%) 12 (10%) Arthralgia 3 (2%) 1 (1%) Herpes viral infections Herpes viral infections are composed of oral herpes and herpes simplex. 3 (2%) 1 (1%) The safety profile of DUPIXENT in 72 pediatric subjects 12 to 17 years of age, weighing at least 40 kg, and adults in Parts A and B was similar. Pediatric Subjects 1 to 11 Years of Age, Weighing at least 15 kg, with EoE A total of 61 pediatric subjects 1 to 11 years of age, weighing at least 15 kg, with EoE were evaluated in a randomized, blinded, parallel-group, multicenter trial, including an initial 16-week placebo-controlled treatment period (Study EoE-2 Part A) and a 36-week extended active treatment period (Study EoE-2 Part B). Subjects in Part A received a weight-based dosing regimen of DUPIXENT or placebo [see Clinical Studies (14.4) ] . All subjects in Part B completed Part A and received active treatment with weight-based dosing regimens of DUPIXENT in Part B (N=47). The safety profile of DUPIXENT through Week 16 of Study EoE-2 Part A was generally similar to the safety profile in adult and pediatric subjects 12 years of age and older with EoE. In Part B, a helminth infection was reported in one DUPIXENT-treated subject. Prurigo Nodularis A total of 309 adult subjects with prurigo nodularis (PN) were evaluated in two 24-week randomized, double-blind, placebo-controlled, multicenter trials (PRIME and PRIME2) [see Clinical Studies (14.5) ] . The safety pool included data from the 24-week treatment and 12-week follow-up periods from both trials. The proportion of subjects who discontinued treatment due to adverse events was 3% of the placebo group and 0% of the DUPIXENT 300 mg Q2W group. Subjects with co-morbid conditions included 43% of subjects with a history of atopy (defined as having a medical history of AD, allergic rhinitis/rhino conjunctivitis, asthma, or food allergy), 8% of subjects with a history of hypothyroidism and 9% of subjects with a history of diabetes mellitus type 2. Table 13 summarizes the adverse reactions that occurred at a rate of at least 2% in subjects treated with DUPIXENT and at a higher rate than in their respective comparator group in PRIME and PRIME2. Table 13: Adverse Reactions Occurring in ≥2% of Adult Subjects with PN in the DUPIXENT Group in PRIME and PRIME2 and Greater than Placebo Adverse Reaction PRIME and PRIME2 DUPIXENT 300 mg Q2W Placebo N=152 n (%) N=157 n (%) Nasopharyngitis Nasopharyngitis includes pharyngitis 8 (5%) 3 (2%) Conjunctivitis Conjunctivitis includes conjunctivitis and allergic conjunctivitis. 6 (4%) 2 (1%) Herpes Infection Herpes infection includes oral herpes, genital herpes simplex, herpes zoster and ophthalmic herpes zoster 5 (3%) 0% Dizziness Dizziness includes dizziness postural, vertigo and vertigo positional 5 (3%) 2 (1%) Myalgia Myalgia includes musculoskeletal pain and musculoskeletal chest pain 5 (3%) 2 (1%) Diarrhea 4 (3%) 1 (1%) Chronic Obstructive Pulmonary Disease A total of 1874 adult subjects with inadequately controlled chronic obstructive pulmonary disease (COPD) and an eosinophilic phenotype were evaluated in two randomized, double-blind, multicenter, parallel-group, placebo-controlled trials with a 52-week treatment period (BOREAS and NOTUS) [see Clinical Studies (14.6) ] . Of those randomized, 1872 subjects received at least one dose of DUPIXENT 300 mg or placebo subcutaneously every 2 weeks (Q2W). The safety of DUPIXENT was assessed in the pooled safety population from BOREAS and NOTUS, which consisted of 938 adult subjects treated with DUPIXENT. Of the subjects treated with DUPIXENT, 98% utilized inhaled triple therapy at baseline (comprising of an inhaled corticosteroid, long-acting beta-agonist, and long-acting muscarinic antagonist), and 97% had chronic bronchitis. Table 14 summarizes the adverse reactions that occurred in at least 2% of subjects treated with DUPIXENT and at a higher rate than placebo in BOREAS and NOTUS trials. Table 14: Adverse Reactions That Occurred in ≥2% of Adult Subjects with COPD Treated with DUPIXENT in BOREAS and NOTUS Trials (Pooled Safety Population) and Greater than Placebo Adverse Reaction BOREAS and NOTUS DUPIXENT 300 mg Q2W Placebo N=938 n (%) N=934 n (%) Viral Infection Consists of multiple similar terms. 133 (14.2) 115 (12.3) Headache 73 (7.8) 62 (6.6) Nasopharyngitis 73 (7.8) 69 (7.4) Back Pain 42 (4.5) 29 (3.1) Diarrhea 35 (3.7) 30 (3.2) Arthralgia 29 (3.1) 25 (2.7) Urinary Tract Infection 28 (3.0) 18 (1.9) Local Administration Reaction 26 (2.8) 6 (0.6) Injection Site Reaction 11 (1.2) 2 (0.2) Rhinitis 24 (2.6) 17 (1.8) Eosinophilia Eosinophilia was defined as blood eosinophils ≥3,000 cells/mcL or deemed by the investigator to be an adverse event. None met the criteria for serious eosinophilic conditions. 22 (2.3) 7 (0.7) Toothache 20 (2.1) 11 (1.2) Gastritis 19 (2) 7 (0.7) Less Common Adverse Reaction in Subjects with COPD: Cholecystitis In adult subjects with COPD, cholecystitis was reported in 6 subjects (0.6%) in the DUPIXENT group compared to 1 subject (0.1%) in the placebo group. Among these subjects, serious cholecystitis was reported in 4 (0.4%) of the DUPIXENT group compared with 0% of the placebo group. Chronic Spontaneous Urticaria Adults and Pediatric Subjects 12 Years of Age and Older with CSU The pooled safety data below reflects the safety of DUPIXENT in adult and pediatric subjects 12 years of age and older with chronic spontaneous urticaria (CSU) who remain symptomatic despite H1 antihistamine treatment. A total of 392 adult and pediatric subjects 12 years of age and older with CSU were evaluated for safety in three randomized, double-blind, parallel-group, multicenter, placebo-controlled, studies, Study A, B, and C, conducted under a master protocol (CUPID) for 36 weeks [see Clinical Studies (14.7) ] . The pooled safety population received an initial dose of DUPIXENT 600 mg or 400 mg, followed by DUPIXENT 300 mg or 200 mg, respectively, or matching placebo, administered subcutaneously every 2 weeks (Q2W) [see Dosage and Administration (2.9) ] . Table 15 summarizes the adverse reactions that occurred in at least 2% in subjects treated with DUPIXENT and at a higher rate than placebo in CUPID Study A, B and C (pooled safety population). Table 15: Adverse Reactions That Occurred in ≥2% of Adult and Pediatric Subjects 12 Years of Age and Older with CSU Treated with DUPIXENT in CUPID Study A, B, and C (Pooled Safety Population) and Greater than Placebo Adverse Reaction CUPID Study A, B, and C DUPIXENT 200 mg Q2W or 300 mg Q2W Placebo N=195 n (%) N=197 n (%) Injection site reactions Injection site reactions cluster includes injection site dermatitis, injection site erythema, injection site hematoma, injection site induration, injection site pain, injection site pruritus, injection site reaction, injection site swelling 20 (10.3) 16 (8.1) Pediatric Subjects 2 to 11 Years of Age with CSU The safety of DUPIXENT was assessed in 18 subjects 2 to 11 years of age who received DUPIXENT based on weight [see Dosage and Administration (2.9) and Use in Specific Populations (8.4) ] . No new adverse reactions were identified in pediatric subjects aged 2 to 11 years who received DUPIXENT. Bullous Pemphigoid The safety of DUPIXENT was evaluated in a 52-week, randomized, double-blind, parallel-group, multicenter, placebo-controlled trial (ADEPT) in a total of 106 adult subjects with moderate-to-severe bullous pemphigoid (BP) [see Clinical Studies (14.8) ] . Of the 106 randomized subjects, all received at least one dose of DUPIXENT or placebo with a course of oral corticosteroids (OCS) with a prespecified taper. At the time of analysis, 87 subjects had completed Week 36 and 65 subjects had completed Week 52. Table 16 summarizes the adverse reactions that occurred in at least 2% of subjects treated with DUPIXENT and at a higher rate than placebo in the ADEPT trial. Table 16: Adverse Reactions Occurring in ≥2% of Adult Subjects with BP Treated with DUPIXENT in ADEPT and Greater than Placebo In combination with a tapering course of oral corticosteroids Adverse Reaction ADEPT DUPIXENT 300 mg Q2W + OCS Placebo + OCS N=53 n (%) N=53 n (%) Arthralgia 5 (9%) 3 (6%) Conjunctivitis 4 (8%) 0% Vision blurred 4 (8%) 0% Herpes viral infections Herpes viral infections include herpes simplex and herpes zoster 3 (6%) 0% Keratitis 2 (4%) 0% A case of AGEP was reported in 1 subject with BP treated with DUPIXENT compared with 0 subjects in the placebo group. Allergic Fungal Rhinosinusitis Adults and Pediatric Subjects 6 Years of Age and Older with AFRS A total of 62 adult and pediatric subjects 6 years of age and older with allergic fungal rhinosinusitis (AFRS) were evaluated in a randomized, double-blind, parallel-group, placebo-controlled trial (AIMS) with a 52-week treatment period [see Clinical Studies (14.9) ] . The adult subjects (n=30) received DUPIXENT 300 mg every 2 weeks and pediatric subjects aged 6 to 17 years (n=3) received DUPIXENT based on body weight [see Dosage and Administration (2.11) ] . The safety profile of DUPIXENT in patients with AFRS was similar to the safety profile of DUPIXENT in patients with CRSwNP (see Chronic Rhinosinusitis with Nasal Polyps ). Specific Adverse Reactions for AD, Asthma, CRSwNP, EoE, PN, COPD, CSU, BP, and AFRS Conjunctivitis and Keratitis In adult subjects with AD, conjunctivitis was reported in 10% (34 per 100 patient-years) in the 300 mg Q2W dose group and in 2% of the placebo group (8 per 100 patient-years) during the 16-week treatment period of the monotherapy trials (SOLO 1, SOLO 2, and AD-1021). During the 52-week treatment period of concomitant therapy AD trial (CHRONOS), conjunctivitis was reported in 16% of the DUPIXENT 300 mg Q2W + TCS group (20 per 100 patient-years) and in 9% of the placebo + TCS group (10 per 100 patient-years). During the long-term OLE trial with data through 260 weeks (AD-1225), conjunctivitis was reported in 21% of the DUPIXENT group (12 per 100 patient-years). In DUPIXENT AD monotherapy trials (SOLO 1, SOLO 2, and AD-1021) through Week 16, keratitis was reported in <1% of the DUPIXENT group (1 per 100 patient-years) and in 0% of the placebo group (0 per 100 patient-years). In the 52-week DUPIXENT + topical corticosteroids (TCS) AD trial (CHRONOS), keratitis was reported in 4% of the DUPIXENT + TCS group (4 per 100 patient-years) and in 2% of the placebo + TCS group (2 per 100 patient-years). Conjunctivitis and keratitis occurred more frequently in AD subjects who received DUPIXENT. Conjunctivitis was the most frequently reported eye disorder. During the long-term OLE trial with data through 260 weeks (AD-1225), keratitis was reported in 3% of the DUPIXENT group (1 per 100 patient-years). Most subjects with conjunctivitis or keratitis recovered or were recovering during the treatment period. Among subjects with asthma, the frequency of conjunctivitis and keratitis was similar between DUPIXENT and placebo. In adult subjects with CRSwNP, the frequency of conjunctivitis was 2% in the DUPIXENT group compared to 1% in the placebo group in the 24-week safety pool; these subjects recovered. In the 52-week CRSwNP study (SINUS-52), the frequency of conjunctivitis was 3% in the DUPIXENT adult subjects and 1% in the placebo subjects; all of these subjects recovered. Among subjects with EoE, there were no reports of conjunctivitis and keratitis in the DUPIXENT group in placebo-controlled trials. In the 36-week active treatment extension period of Study EoE-2 Part B, conjunctivitis was reported in 4% of DUPIXENT-treated pediatric subjects with EoE. Among subjects with PN, the frequency of conjunctivitis was 4% in the DUPIXENT group compared to 1% in the placebo group; all of these subjects recovered or were recovering during the treatment period. Among subjects with COPD, the frequency of conjunctivitis and keratitis was 1.4% and 0.1% in the DUPIXENT group and 1% and 0% in the placebo group, respectively. Among subjects with CSU in the pooled safety population, the frequency of conjunctivitis was similar between DUPIXENT and placebo. Among subjects with BP, the frequency of conjunctivitis and keratitis was 8% and 4% in the DUPIXENT group and 0% and 0% in the placebo group, respectively. Eczema Herpeticum and Herpes Zoster The rate of eczema herpeticum was similar in the placebo and DUPIXENT groups in the AD trials. The rates remained stable through 260 weeks in the long-term OLE trial (AD-1225). Herpes zoster was reported in <1% of the DUPIXENT groups (1 per 100 patient-years) and in <1% of the placebo group (1 per 100 patient-years) in the 16-week AD monotherapy trials. In the 52-week DUPIXENT + TCS AD trial, herpes zoster was reported in 1% of the DUPIXENT + TCS group (1 per 100 patient-years) and 2% of the placebo + TCS group (2 per 100 patient-years). During the long-term OLE trial with data through 260 weeks (AD-1225), 2.0% of DUPIXENT-treated subjects reported herpes zoster (0.94 per 100 patient-years of follow up). Among asthma subjects the frequency of herpes zoster was similar between DUPIXENT and placebo. Among subjects with CRSwNP or EoE there were no reported cases of herpes zoster or eczema herpeticum. Among subjects with PN, herpes zoster and ophthalmic herpes zoster were each reported in <1% of the DUPIXENT group (1 per 100 patient-years) and 0% of the placebo group. Among subjects with COPD, herpes zoster was reported in 0.9% of the DUPIXENT group and 0.2% of the placebo group. Ophthalmic herpes zoster was reported in 0.1% of the DUPIXENT group and 0.2% of the placebo group. Among subjects with CSU in the pooled safety population, herpes zoster was reported in <1% of the DUPIXENT and placebo groups (1 per 100 patient-years). Among subjects with BP, herpes zoster was reported in 4% of the DUPIXENT group and 0% of the placebo group. Hypersensitivity Reactions Hypersensitivity reactions were reported in <1% of DUPIXENT-treated subjects. These included anaphylaxis, AGEP, serum sickness or serum sickness-like reactions, generalized urticaria, rash, erythema nodosum, and erythema multiforme [see Contraindications (4) and Clinical Pharmacology (12.6) ] . Eosinophils DUPIXENT-treated subjects with AD, asthma, CRSwNP, and COPD had a greater initial increase from baseline in blood eosinophil count compared to subjects receiving placebo. In adult subjects with AD (SOLO 1, SOLO 2, and AD-1021), the mean and median increases in blood eosinophils from baseline to Week 4 were 100 and 0 cells/mcL, respectively. In pediatric subjects less than 6 years old with AD, the mean and median increases from baseline to week 4 were 478 and 90 cells/mcL, respectively. In adult and pediatric subjects 12 years of age and older with asthma (DRI12544 and QUEST), the mean and median increases in blood eosinophils from baseline to Week 4 were 130 and 10 cells/mcL, respectively. In subjects 6 to 11 years of age with asthma (VOYAGE), the mean and median increases in blood eosinophils from baseline to Week 12 were 124 and 0 cells/mcL, respectively. In adult subjects with CRSwNP (SINUS-24 and SINUS-52), the mean and median increases in blood eosinophils from baseline to Week 16 were 150 and 50 cells/mcL, respectively. In subjects with COPD (BOREAS and NOTUS), the mean and median increases in blood eosinophils from baseline to Week 8 were 60 and 0 cells/mcL, respectively. An increase from baseline in blood eosinophil count was not observed in adult and pediatric subjects 12 years of age and older with EoE treated with DUPIXENT as compared to placebo (Study EoE-1). In pediatric subjects 1 to 11 years of age with EoE (Study EoE-2 Part A), blood eosinophil counts were generally consistent with those observed in Study EoE-1. In adult and pediatric subjects 12 years of age and older with CSU (CUPID Study A, Study B, and Study C) treated with DUPIXENT, an increase from baseline in blood eosinophil count was not observed compared to placebo at Week 12. In pediatric subjects 2 to 11 years of age with CSU (Study PKM16982) treated with DUPIXENT, an increase from baseline in blood eosinophil count was not observed at week 24. In subjects with PN (PRIME and PRIME2), the mean and median decrease in blood eosinophils from baseline to Week 4 were 9 and 10 cells/mcL, respectively. In DUPIXENT-treated subjects with BP in ADEPT, all of whom received background oral corticosteroid (OCS) treatment, the mean and median decrease in blood eosinophils from baseline to Week 4 were 1022 and 485 cells/mcL, respectively. In the trials for the COPD indication, treatment-emergent eosinophilia (≥500 cells/mcL) was higher in DUPIXENT (41.7%) than in the placebo group (39.4%); none of the cases were associated with clinical symptoms, and treatment-emergent eosinophilia (≥1000 cells/mcL) was higher in DUPIXENT (13.6%) than in the placebo group (8.1%). Across the trials for AD, asthma, CRSwNP, CSU, and AFRS indications, the incidence of treatment-emergent eosinophilia (≥500 cells/mcL) was similar in DUPIXENT and placebo groups. In the trials for the PN indication, the incidence of treatment-emergent eosinophilia (≥500 cells/mcL) was lower in DUPIXENT than in the placebo group. In the trial for the BP indication, the incidence of treatment-emergent eosinophilia (≥500 cells/mcL) was higher in DUPIXENT (21%) than in the placebo group (11%). In adult and pediatric subjects with AFRS (AIMS) treated with DUPIXENT, an increase from baseline in blood eosinophil count was not observed compared to placebo at Week 12. Treatment-emergent eosinophilia (≥5,000 cells/mcL) was observed in <3% of DUPIXENT-treated subjects and <0.5% in subjects receiving placebo (SOLO 1, SOLO 2, and AD-1021; DRI12544, QUEST, and VOYAGE; SINUS-24 and SINUS-52; PRIME and PRIME2; BOREAS and NOTUS; CUPID Study A, B, and C). Blood eosinophil counts declined to near baseline or remained below baseline levels (PRIME and PRIME2; BOREAS and NOTUS; ADEPT) during treatment. In trial AD-1539, treatment-emergent eosinophilia (≥5,000 cells/mcL) was reported in 8% of DUPIXENT-treated subjects and 0% in subjects receiving placebo [see Warnings and Precautions (5.3) ] . Cardiovascular Thromboembolic Events In the 1-year placebo-controlled trial in adult and pediatric subjects 12 years of age and older with asthma (QUEST), cardiovascular thromboembolic events (cardiovascular deaths, non-fatal myocardial infarctions, and non-fatal strokes) were reported in 1 (0.2%) of the DUPIXENT 200 mg Q2W group, 4 (0.6%) of the DUPIXENT 300 mg Q2W group, and 2 (0.3%) of the placebo group. In the 1-year placebo-controlled trial in subjects with AD (CHRONOS), cardiovascular thromboembolic events (cardiovascular deaths, non-fatal myocardial infarctions, and non-fatal strokes) were reported in 1 (0.9%) of the DUPIXENT + TCS 300 mg Q2W group, 0 (0.0%) of the DUPIXENT + TCS 300 mg QW group, and 1 (0.3%) of the placebo + TCS group. In the 24-week placebo-controlled trial in adult subjects with CRSwNP (SINUS-24), cardiovascular thromboembolic events (cardiovascular deaths, non-fatal myocardial infarctions, and non-fatal strokes) were reported in 1 (0.7%) of the DUPIXENT group and 0 (0.0%) of the placebo group. In the 1-year placebo-controlled trial in adult subjects with CRSwNP (SINUS-52), there were no cases of cardiovascular thromboembolic events (cardiovascular deaths, non-fatal myocardial infarctions, and non-fatal strokes) reported in any treatment arm. In the 24-week placebo-controlled trial in subjects with EoE (Study EoE-1 Parts A and B), there were no cases of cardiovascular thromboembolic events (cardiovascular deaths, non-fatal myocardial infarctions, and non-fatal strokes) reported in any treatment arm. In the 24-week placebo-controlled trial in subjects with CSU (CUPID Study A, B, and C), there were no cases of cardiovascular thromboembolic events (cardiovascular deaths, non-fatal myocardial infarctions, and non-fatal strokes) reported in any treatment arm. In the 52-week placebo-controlled trial in subjects with AFRS (AIMS), there were no cases of cardiovascular thromboembolic events (cardiovascular deaths, non-fatal myocardial infarctions, and non-fatal strokes) reported in any treatment arm. 6.2 Postmarketing Experience The following adverse reactions have been identified during post-approval use of DUPIXENT. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Immune system disorders: angioedema Musculoskeletal system disorders: psoriatic arthritis Skin and subcutaneous tissue disorders: Facial skin reactions, including erythema, rash, scaling, edema, papules, pruritus, burning, and pain; new-onset psoriasis, vasculitis Ocular disorders: Ectropion, cicatricial disease/cicatricial ectropion, punctal stenosis/canalicular obstruction, symblepharon, and temporary or ongoing vision loss, including visual impairment and blindness associated with conjunctivitis, keratitis, or blepharitis [see Warnings and Precautions (5.2) ]

8 USE IN SPECIFIC POPULATIONS 8.1 Pregnancy Pregnancy Exposure Registry There is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to DUPIXENT during pregnancy. Risk Summary Available data from case reports and case series with DUPIXENT use in pregnant women have not identified a drug-associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes. Human IgG antibodies are known to cross the placental barrier; therefore, DUPIXENT may be transmitted from the mother to the developing fetus. There are adverse effects on maternal and fetal outcomes associated with asthma in pregnancy ( see Clinical Considerations ). In an enhanced pre- and post-natal developmental study, no adverse developmental effects were observed in offspring born to pregnant monkeys after subcutaneous administration of a homologous antibody against interleukin-4-receptor alpha (IL-4Rα) during organogenesis through parturition at doses up to 10-times the maximum recommended human dose (MRHD) ( see Data ) . The background risk of major birth defects and miscarriage for the indicated populations are unknown. All pregnancies have a background risk of birth defect, loss or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. Clinical Considerations Disease-Associated Maternal and/or Embryo-fetal Risk In women with poorly or moderately controlled asthma, evidence demonstrates that there is an increased risk of preeclampsia in the mother and prematurity, low birth weight, and small for gestational age in the neonate. The level of asthma control should be closely monitored in pregnant women and treatment adjusted as necessary to maintain optimal control. Fetal/Neonatal Adverse Reactions Transport of endogenous IgG antibodies across the placenta increases as pregnancy progresses, and peaks during the third trimester. Therefore, DUPIXENT may be present in infants exposed in utero . The potential clinical impact of dupilumab exposure in infants exposed in utero should be considered. Data Animal Data In an enhanced pre- and post-natal development toxicity study, pregnant cynomolgus monkeys were administered weekly subcutaneous doses of homologous antibody against IL-4Rα up to 10 times the MRHD (on a mg/kg basis of 100 mg/kg/week) from the beginning of organogenesis to parturition. No treatment-related adverse effects on embryo-fetal toxicity or malformations, or on morphological, functional, or immunological development were observed in the infants from birth through 6 months of age. 8.2 Lactation Risk Summary There are no data on the presence of dupilumab in human milk, the effects on the breastfed infant, or the effects on milk production. Maternal IgG is known to be present in human milk. The effects of local gastrointestinal exposure and limited systemic exposure to dupilumab on the breastfed infant are unknown. The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for DUPIXENT and any potential adverse effects on the breastfed child from DUPIXENT or from the underlying maternal condition. 8.4 Pediatric Use Atopic Dermatitis The safety and effectiveness of DUPIXENT have been established in pediatric patients 6 months of age and older with moderate-to-severe AD, whose disease is not adequately controlled with topical prescription therapies or when those therapies are not advisable. Use of DUPIXENT in this age group is supported by data from the following clinical trials: AD-1526 which included 251 pediatric subjects 12 years of age and older with moderate-to-severe AD. Of the 251 subjects, 82 were treated with DUPIXENT 200 mg Q2W (<60 kg) or 300 mg Q2W (≥60 kg) and 85 were treated with matching placebo AD-1652 which included 367 pediatric subjects 6 to 11 years of age with severe AD. Of the 367 subjects, 120 were treated with DUPIXENT 300 mg Q4W + TCS (15 to <30 kg) or 200 mg Q2W + TCS (≥30 kg) and 123 were treated with matching placebo + TCS AD-1539 which included 162 pediatric subjects 6 months to 5 years of age with moderate-to-severe AD. Of the 162 subjects, 83 were treated with DUPIXENT 200 mg Q4W + TCS (5 to <15 kg) or 300 mg Q4W + TCS (15 to <30 kg) and 79 subjects were assigned to be treated with matching placebo + TCS AD-1434, an open-label extension study that enrolled 275 pediatric subjects 12 years of age and older treated with DUPIXENT ± TCS, 368 pediatric subjects 6 to 11 years of age treated with DUPIXENT ± TCS, and 180 pediatric subjects 6 months to 5 years of age treated with DUPIXENT ± TCS Liberty-AD-HAFT which included 27 pediatric subjects 12 years of age and older with atopic dermatitis with moderate-to-severe hand and/or foot involvement treated with DUPIXENT (N=14) or matching placebo (N=13) The safety and effectiveness were generally consistent between pediatric and adult patients. In addition, hand-foot-and-mouth disease was reported in 9 (5%) pediatric subjects and skin papilloma was reported in 4 (2%) pediatric subjects 6 months to 5 years of age treated with DUPIXENT ± TCS in AD-1434. These cases did not lead to study drug discontinuation [see Adverse Reactions (6.1) and Clinical Studies (14.1) ] . Safety and effectiveness of DUPIXENT have not been established in pediatric patients younger than 6 months of age with AD. Asthma The safety and effectiveness of DUPIXENT for an add-on maintenance treatment in patients with moderate-to-severe asthma characterized by an eosinophilic phenotype or with oral corticosteroid dependent asthma have been established in pediatric patients 6 years of age and older. Use of DUPIXENT for this indication is supported by evidence from adequate and well-controlled studies in adult and pediatric patients 6 years and older [see Clinical Studies (14.2)] . Pediatric Subjects 12 to 17 Years of Age : A total of 107 pediatric subjects 12 to 17 years of age with moderate-to-severe asthma were enrolled in QUEST and received either 200 mg (N=21) or 300 mg (N=18) DUPIXENT (or matching placebo either 200 mg [N=34] or 300 mg [N=34]) Q2W. Asthma exacerbations and lung function were assessed in both pediatric subjects 12 to 17 years of age and adults. For both the 200 mg and 300 mg Q2W doses, improvements in FEV 1 (LS mean change from baseline at Week 12) were observed (0.36 L and 0.27 L, respectively). For the 200 mg Q2W dose, subjects had a reduction in the rate of severe exacerbations that was consistent with adults. Dupilumab exposure was higher in pediatric subjects 12 to 17 years of age than that in adults at the respective dose level which was mainly accounted for by difference in body weight [see Clinical Pharmacology (12.3) ] . The adverse event profile in pediatric subjects 12 to 17 years of age was generally similar to the adults [see Adverse Reactions (6.1) ] . Pediatric Subjects 6 to 11 Years of Age : A total of 408 pediatric subjects 6 to 11 years of age with moderate-to-severe asthma were enrolled in VOYAGE, which evaluated doses of 100 mg Q2W or 200 mg Q2W. Improvement in asthma exacerbations and lung function were demonstrated [see Clinical Studies (14.2) ] . The effectiveness of DUPIXENT 300 mg Q4W in subjects 6 to 11 years of age with body weight 15 to <30 kg was extrapolated from efficacy of 100 mg Q2W in VOYAGE with support from population pharmacokinetic analyses showing higher drug exposure levels with 300 mg Q4W [see Clinical Pharmacology (12.3) ] . Subjects who completed the treatment period of the VOYAGE study could participate in the open-label extension study (LTS14424). Eighteen subjects (≥15 to <30 kg) out of 365 subjects were exposed to 300 mg Q4W in this study, and the safety profile in these eighteen subjects was consistent with that seen in VOYAGE. Additional safety for DUPIXENT 300 mg Q4W is based upon available safety information from the pediatric AD indication [see Adverse Reactions (6.1) and Clinical Pharmacology (12.3) ] . Safety and effectiveness of DUPIXENT have not been established in pediatric patients younger than 6 years of age with asthma. CRSwNP The safety and effectiveness of DUPIXENT for add-on maintenance treatment in patients with inadequately controlled CRSwNP have been established in pediatric patients aged 12 years and older. Use of DUPIXENT for this indication is supported by evidence from adequate and well-controlled studies of DUPIXENT as add-on maintenance treatment in adults with inadequately controlled CRSwNP (SINUS-24 and SINUS-52) with the following additional data: Pharmacokinetic (PK) data from adult and pediatric patients aged 12 years and older with moderate-to-severe asthma and adult patients with inadequately controlled CRSwNP Safety data in pediatric patients aged 12 years and older with moderate-to-severe asthma [see Adverse Reactions (6.1) , Clinical Pharmacology (12.3) , and Clinical Studies (14.3) ] Safety and effectiveness of DUPIXENT have not been established in pediatric patients younger than 12 years of age with CRSwNP. EoE The safety and effectiveness of DUPIXENT for the treatment of EoE have been established in pediatric subjects 1 year of age and older, weighing at least 15 kg. Use of DUPIXENT in this population is supported by an adequate well-controlled study in adults and 72 pediatric subjects 12 to 17 years of age (Study EoE-1), a clinical study in 61 pediatric subjects 1 to 11 years of age (Study EoE-2), and pharmacokinetic data in adult and pediatric subjects 1 to 17 years of age. The safety of DUPIXENT in pediatric subjects 1 to 17 years of age was similar to adults [see Adverse Reactions (6.1) , Clinical Pharmacology (12.3) , and Clinical Studies (14.4) ] . Safety and effectiveness of DUPIXENT have not been established in pediatric patients younger than 1 year of age, or weighing less than 15 kg, with EoE. Prurigo Nodularis Safety and effectiveness of DUPIXENT have not been established in pediatric patients with PN. Chronic Obstructive Pulmonary Disease The safety and effectiveness of DUPIXENT have not been established in pediatric patients with COPD. COPD is largely a disease of adult patients. Chronic Spontaneous Urticaria The safety and effectiveness of DUPIXENT for the treatment of CSU in patients who remain symptomatic despite H1 antihistamine treatment have been established in pediatric patients 2 years of age and older. Use of DUPIXENT in this indication is supported by evidence from two adequate and well-controlled studies in adults and pediatric patients aged 12 years and older [see Clinical Studies (14.7) ] with the following additional data: Pharmacokinetic (PK) data in 6 pediatric patients 12 to 17 years of age, PK data in 18 pediatric patients 2 to 11 years of age, and safety data in pediatric patients in other indications [see Adverse Reactions (6.1) and Clinical Pharmacology (12.3) ] Safety and effectiveness of DUPIXENT have not been established in pediatric patients younger than 2 years of age, and/or weighing less than 5 kg, with CSU. Bullous Pemphigoid The safety and effectiveness of DUPIXENT have not been established in pediatric patients with BP. BP is largely a disease of adult patients. Allergic Fungal Rhinosinusitis The safety and effectiveness of DUPIXENT for the treatment of AFRS in patients who have a history of sino-nasal surgery have been established in pediatric patients 6 years of age and older. Use of DUPIXENT in this indication is supported by evidence from an adequate and well-controlled study (AIMS) in adults and pediatric patients aged 12 years and older [see Clinical Studies (14.9) ] , with the following additional data: Pharmacokinetic (PK) data in 3 pediatric patients 12 years of age and older with AFRS [see Clinical Pharmacology (12.3) ] PK and safety data in pediatric patients 6 years to 11 years of age in other indications. [see Adverse Reactions (6.1) and Clinical Pharmacology (12.3) ] Safety and effectiveness in pediatric patients younger than 6 years of age with AFRS have not been established. 8.5 Geriatric Use Of the 1539 subjects with AD exposed to DUPIXENT in a dose-ranging study and placebo-controlled trials, 70 subjects were 65 years or older. Clinical trials of DUPIXENT in AD did not include sufficient numbers of subjects aged 65 years and older to determine whether they respond differently from younger subjects. Of the 1977 subjects with asthma exposed to DUPIXENT, a total of 240 subjects were 65 years or older. Efficacy and safety in this age group were similar to the overall study population. Of the 440 subjects with CRSwNP exposed to DUPIXENT, a total of 79 subjects were 65 years or older. Efficacy and safety in this age group were similar to the overall study population. Clinical studies of DUPIXENT in EoE did not include sufficient numbers of subjects aged 65 years and older to determine whether they respond differently from younger adult subjects. Of the 152 subjects with PN exposed to DUPIXENT, a total of 37 were 65 years or older including 8 subjects 75 years or older. Clinical trials did not include a sufficient number of subjects 65 years of age and older to determine whether they respond differently from younger adult subjects. Of the 1874 subjects with COPD randomized in clinical trials of DUPIXENT, a total of 1072 were 65 years or older, while 244 subjects were 75 years or older. No overall differences in safety or effectiveness of DUPIXENT have been observed between subjects 65 years of age and older and younger adult subjects. Of the 198 subjects with CSU exposed to DUPIXENT, a total of 30 subjects were 65 years or older, including 7 subjects 75 years or older. Efficacy and safety in subjects 65 years or older were similar to the overall study population. Of the 53 subjects with BP exposed to DUPIXENT, a total of 40 were 65 years or older, including 22 subjects 75 years or older. Ten percent of subjects aged 65 years and older treated with DUPIXENT had an adverse reaction of vision blurred compared to zero in younger adult subjects. Clinical studies of DUPIXENT in AFRS did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects.

8.1 Pregnancy Pregnancy Exposure Registry There is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to DUPIXENT during pregnancy. Risk Summary Available data from case reports and case series with DUPIXENT use in pregnant women have not identified a drug-associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes. Human IgG antibodies are known to cross the placental barrier; therefore, DUPIXENT may be transmitted from the mother to the developing fetus. There are adverse effects on maternal and fetal outcomes associated with asthma in pregnancy ( see Clinical Considerations ). In an enhanced pre- and post-natal developmental study, no adverse developmental effects were observed in offspring born to pregnant monkeys after subcutaneous administration of a homologous antibody against interleukin-4-receptor alpha (IL-4Rα) during organogenesis through parturition at doses up to 10-times the maximum recommended human dose (MRHD) ( see Data ) . The background risk of major birth defects and miscarriage for the indicated populations are unknown. All pregnancies have a background risk of birth defect, loss or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. Clinical Considerations Disease-Associated Maternal and/or Embryo-fetal Risk In women with poorly or moderately controlled asthma, evidence demonstrates that there is an increased risk of preeclampsia in the mother and prematurity, low birth weight, and small for gestational age in the neonate. The level of asthma control should be closely monitored in pregnant women and treatment adjusted as necessary to maintain optimal control. Fetal/Neonatal Adverse Reactions Transport of endogenous IgG antibodies across the placenta increases as pregnancy progresses, and peaks during the third trimester. Therefore, DUPIXENT may be present in infants exposed in utero . The potential clinical impact of dupilumab exposure in infants exposed in utero should be considered. Data Animal Data In an enhanced pre- and post-natal development toxicity study, pregnant cynomolgus monkeys were administered weekly subcutaneous doses of homologous antibody against IL-4Rα up to 10 times the MRHD (on a mg/kg basis of 100 mg/kg/week) from the beginning of organogenesis to parturition. No treatment-related adverse effects on embryo-fetal toxicity or malformations, or on morphological, functional, or immunological development were observed in the infants from birth through 6 months of age.

8.4 Pediatric Use Atopic Dermatitis The safety and effectiveness of DUPIXENT have been established in pediatric patients 6 months of age and older with moderate-to-severe AD, whose disease is not adequately controlled with topical prescription therapies or when those therapies are not advisable. Use of DUPIXENT in this age group is supported by data from the following clinical trials: AD-1526 which included 251 pediatric subjects 12 years of age and older with moderate-to-severe AD. Of the 251 subjects, 82 were treated with DUPIXENT 200 mg Q2W (<60 kg) or 300 mg Q2W (≥60 kg) and 85 were treated with matching placebo AD-1652 which included 367 pediatric subjects 6 to 11 years of age with severe AD. Of the 367 subjects, 120 were treated with DUPIXENT 300 mg Q4W + TCS (15 to <30 kg) or 200 mg Q2W + TCS (≥30 kg) and 123 were treated with matching placebo + TCS AD-1539 which included 162 pediatric subjects 6 months to 5 years of age with moderate-to-severe AD. Of the 162 subjects, 83 were treated with DUPIXENT 200 mg Q4W + TCS (5 to <15 kg) or 300 mg Q4W + TCS (15 to <30 kg) and 79 subjects were assigned to be treated with matching placebo + TCS AD-1434, an open-label extension study that enrolled 275 pediatric subjects 12 years of age and older treated with DUPIXENT ± TCS, 368 pediatric subjects 6 to 11 years of age treated with DUPIXENT ± TCS, and 180 pediatric subjects 6 months to 5 years of age treated with DUPIXENT ± TCS Liberty-AD-HAFT which included 27 pediatric subjects 12 years of age and older with atopic dermatitis with moderate-to-severe hand and/or foot involvement treated with DUPIXENT (N=14) or matching placebo (N=13) The safety and effectiveness were generally consistent between pediatric and adult patients. In addition, hand-foot-and-mouth disease was reported in 9 (5%) pediatric subjects and skin papilloma was reported in 4 (2%) pediatric subjects 6 months to 5 years of age treated with DUPIXENT ± TCS in AD-1434. These cases did not lead to study drug discontinuation [see Adverse Reactions (6.1) and Clinical Studies (14.1) ] . Safety and effectiveness of DUPIXENT have not been established in pediatric patients younger than 6 months of age with AD. Asthma The safety and effectiveness of DUPIXENT for an add-on maintenance treatment in patients with moderate-to-severe asthma characterized by an eosinophilic phenotype or with oral corticosteroid dependent asthma have been established in pediatric patients 6 years of age and older. Use of DUPIXENT for this indication is supported by evidence from adequate and well-controlled studies in adult and pediatric patients 6 years and older [see Clinical Studies (14.2)] . Pediatric Subjects 12 to 17 Years of Age : A total of 107 pediatric subjects 12 to 17 years of age with moderate-to-severe asthma were enrolled in QUEST and received either 200 mg (N=21) or 300 mg (N=18) DUPIXENT (or matching placebo either 200 mg [N=34] or 300 mg [N=34]) Q2W. Asthma exacerbations and lung function were assessed in both pediatric subjects 12 to 17 years of age and adults. For both the 200 mg and 300 mg Q2W doses, improvements in FEV 1 (LS mean change from baseline at Week 12) were observed (0.36 L and 0.27 L, respectively). For the 200 mg Q2W dose, subjects had a reduction in the rate of severe exacerbations that was consistent with adults. Dupilumab exposure was higher in pediatric subjects 12 to 17 years of age than that in adults at the respective dose level which was mainly accounted for by difference in body weight [see Clinical Pharmacology (12.3) ] . The adverse event profile in pediatric subjects 12 to 17 years of age was generally similar to the adults [see Adverse Reactions (6.1) ] . Pediatric Subjects 6 to 11 Years of Age : A total of 408 pediatric subjects 6 to 11 years of age with moderate-to-severe asthma were enrolled in VOYAGE, which evaluated doses of 100 mg Q2W or 200 mg Q2W. Improvement in asthma exacerbations and lung function were demonstrated [see Clinical Studies (14.2) ] . The effectiveness of DUPIXENT 300 mg Q4W in subjects 6 to 11 years of age with body weight 15 to <30 kg was extrapolated from efficacy of 100 mg Q2W in VOYAGE with support from population pharmacokinetic analyses showing higher drug exposure levels with 300 mg Q4W [see Clinical Pharmacology (12.3) ] . Subjects who completed the treatment period of the VOYAGE study could participate in the open-label extension study (LTS14424). Eighteen subjects (≥15 to <30 kg) out of 365 subjects were exposed to 300 mg Q4W in this study, and the safety profile in these eighteen subjects was consistent with that seen in VOYAGE. Additional safety for DUPIXENT 300 mg Q4W is based upon available safety information from the pediatric AD indication [see Adverse Reactions (6.1) and Clinical Pharmacology (12.3) ] . Safety and effectiveness of DUPIXENT have not been established in pediatric patients younger than 6 years of age with asthma. CRSwNP The safety and effectiveness of DUPIXENT for add-on maintenance treatment in patients with inadequately controlled CRSwNP have been established in pediatric patients aged 12 years and older. Use of DUPIXENT for this indication is supported by evidence from adequate and well-controlled studies of DUPIXENT as add-on maintenance treatment in adults with inadequately controlled CRSwNP (SINUS-24 and SINUS-52) with the following additional data: Pharmacokinetic (PK) data from adult and pediatric patients aged 12 years and older with moderate-to-severe asthma and adult patients with inadequately controlled CRSwNP Safety data in pediatric patients aged 12 years and older with moderate-to-severe asthma [see Adverse Reactions (6.1) , Clinical Pharmacology (12.3) , and Clinical Studies (14.3) ] Safety and effectiveness of DUPIXENT have not been established in pediatric patients younger than 12 years of age with CRSwNP. EoE The safety and effectiveness of DUPIXENT for the treatment of EoE have been established in pediatric subjects 1 year of age and older, weighing at least 15 kg. Use of DUPIXENT in this population is supported by an adequate well-controlled study in adults and 72 pediatric subjects 12 to 17 years of age (Study EoE-1), a clinical study in 61 pediatric subjects 1 to 11 years of age (Study EoE-2), and pharmacokinetic data in adult and pediatric subjects 1 to 17 years of age. The safety of DUPIXENT in pediatric subjects 1 to 17 years of age was similar to adults [see Adverse Reactions (6.1) , Clinical Pharmacology (12.3) , and Clinical Studies (14.4) ] . Safety and effectiveness of DUPIXENT have not been established in pediatric patients younger than 1 year of age, or weighing less than 15 kg, with EoE. Prurigo Nodularis Safety and effectiveness of DUPIXENT have not been established in pediatric patients with PN. Chronic Obstructive Pulmonary Disease The safety and effectiveness of DUPIXENT have not been established in pediatric patients with COPD. COPD is largely a disease of adult patients. Chronic Spontaneous Urticaria The safety and effectiveness of DUPIXENT for the treatment of CSU in patients who remain symptomatic despite H1 antihistamine treatment have been established in pediatric patients 2 years of age and older. Use of DUPIXENT in this indication is supported by evidence from two adequate and well-controlled studies in adults and pediatric patients aged 12 years and older [see Clinical Studies (14.7) ] with the following additional data: Pharmacokinetic (PK) data in 6 pediatric patients 12 to 17 years of age, PK data in 18 pediatric patients 2 to 11 years of age, and safety data in pediatric patients in other indications [see Adverse Reactions (6.1) and Clinical Pharmacology (12.3) ] Safety and effectiveness of DUPIXENT have not been established in pediatric patients younger than 2 years of age, and/or weighing less than 5 kg, with CSU. Bullous Pemphigoid The safety and effectiveness of DUPIXENT have not been established in pediatric patients with BP. BP is largely a disease of adult patients. Allergic Fungal Rhinosinusitis The safety and effectiveness of DUPIXENT for the treatment of AFRS in patients who have a history of sino-nasal surgery have been established in pediatric patients 6 years of age and older. Use of DUPIXENT in this indication is supported by evidence from an adequate and well-controlled study (AIMS) in adults and pediatric patients aged 12 years and older [see Clinical Studies (14.9) ] , with the following additional data: Pharmacokinetic (PK) data in 3 pediatric patients 12 years of age and older with AFRS [see Clinical Pharmacology (12.3) ] PK and safety data in pediatric patients 6 years to 11 years of age in other indications. [see Adverse Reactions (6.1) and Clinical Pharmacology (12.3) ] Safety and effectiveness in pediatric patients younger than 6 years of age with AFRS have not been established.