Indication
DUPIXENT is indicated for the treatment of adult and pediatric patients aged 1 year and older, weighing at least 15 kg, with Eosinophilic Esophagits (EoE).
Additional indications
Atopic dermatitis Dupixent is indicated for the treatment of moderate-to-severe atopic dermatitis in adults and adolescents 12 years and older who are candidates for systemic therapy.
Dupixent is indicated for the treatment of severe atopic dermatitis in children 6 to 11 years old who are candidates for systemic therapy. Asthma Dupixent is indicated in adults and adolescents 12 years and older as add-on maintenance treatment for severe asthma with type 2 inflammation characterised by raised blood eosinophils and/or raised fraction of exhaled nitric oxide (FeNO), who are inadequately controlled with high dose inhaled corticosteroids (ICS) plus another medicinal product for maintenance treatment.
Dupixent is indicated in children 6 to 11 years old as add-on maintenance treatment for severe asthma with type 2 inflammation characterised by raised blood eosinophils and/or raised fraction of exhaled nitric oxide (FeNO), who are inadequately controlled with medium to high dose inhaled corticosteroids (ICS) plus another medicinal product for maintenance treatment.
Chronic rhinosinusitis with nasal polyposis (CRSwNP)
Dupixent is indicated as an add-on therapy with intranasal corticosteroids for the treatment of adults with severe CRSwNP for whom therapy with systemic corticosteroids and/or surgery do not provide adequate disease control.
CRS, chronic rhinosinusitis.
Prurigo Nodularis for the treatment of adult patients with prurigo nodularis (PN).
EoE is a chronic, progressive disease of the esophagus driven by type 2 inflammation1-3
Many patients with eosinophilic esophagitis (EoE) remain uncontrolled with the current standard of care, leading to high disease burden and increased risk of progression4-7
Prevalence of EoE
~1 IN 4,000 PEOPLE
worldwide8
Disabling Symptoms
Patients with EoE experience1,5,9,10:
- Dysphagia
- Food impaction and subsequent bolus removal
- Noncardiac chest pain
- Regurgitation
Insufficient Management Strategies
Most EoE patients had recurring symptoms despite repeated treatment with oral topical corticosteroidsa
~ 48,000
EoE patients have failed on multiple treatments7,11
Underlying Inflammation
~ 75%
of EoE patients have at least one coexisting type 2 inflammatory disease3,12:
> Allergic rhinitis
> Atopic dermatitis
> Asthma
> Food allergies
Patients need a therapy that treats the underlying type 2 inflammation that drives EoE
e61% of adult patients repeated treatment with oral topical steroids at least once.
Dupixent—the first and only biologic targeting type 2 inflammation in EoE
Type 2 inflammation is the underlying driver in the majority of patients with eosinophilic esophagitis (EoE)3,12

Dupixent works locally and systemically to target type 2 inflammation and control eoe activity13-16
Rapid improvement in swallowing for patients and sustained symptom reduction
DUPIXENT significantly improved swallowing vs placebo as early as Week 4, with lasting improvement through Week 24 and Week 5213
Percentage reduction in DSQ total score from baseline through Week 24 (co-primary endpoint) and Week 52

The Dysphagia Symptom Questionnaire (DSQ) is a patient-reported assessment that measures the frequency and severity of dysphagia. DSQ scores range from 0 to 84, with a lower score indicating less frequent or less severe dysphagia.
The difference Dupixent can make in the disease burden of EoE
TREET study design, Part A, A/C13

82% of patients achieved substantial histological response by week 5217
DUPIXENT significantly reduced peak esophageal intraepithelial eosinophil count vs placebo at Week 24 with sustained results through Week 5213,17
Proportion of patients who achieved histological response and remission rates from baseline through Week 52a


Histological response is reached when patients achieve <15 EOS/HPF

Histological remission is reached when patients achieve ≤6 EOS/HPF

64% of patients achieved response (<15 EOS/HPF) and 60% achieved remission (≤6 EOS/HPF) at Week 24 with DUPIXENT vs 8% response and 5% remission with placebo (P<0.001)d
Peak esophageal intraepithelial eosinophil count (eosinophils per high-power field, or EOS/HPF) determines histologic outcome, using both percent change in peak EOS/HPF as well as proportion of patients achieving a treatment response.
aSecondary endpoints were proportion of patients achieving peak esophageal intraepithelial eosinophil count of <15 EOS/HPF at Week 24, proportion of patients achieving <6 EOS/HPF at Weeks 24 and 52.
b 82% of patients who received DUPIXENT from baseline achieved histological response (n=34), and 70% of patients who switched to DUPIXENT from placebo at Week 24 achieved histological response (n=30).
c 56% of patients who received DUPIXENT from baseline achieved histological remission at Week 52 (n=34), and 60% of patients who switched to DUPIXENT from placebo at Week 24 achieved histological remission (n=30).
dCoprimary endpoint was the proportion of patients achieving peak esophageal intraepithelial eosinophil count of ≤6 EOS/HPF at Week 24.
The histological normalization results
Proportion of patients who achieved normalization rates from baseline through Week 24 and Week 5218


UP TO 29% Achieved normalization on Dupixent at week 52 19,a
a29% of patients who received DUPIXENT from baseline achieved histological normalization at Week 52 (n=34), and 27% of patients who switched to DUPIXENT from placebo at Week 24 achieved histological normalization (n=30).
The study design
TREET study design, Part A, A/C13

Visible improvement in severity of endoscopic signs by targeting deep in the tissue
DUPIXENT significantly improved endoscopic findings (EREFS) vs placebo at Week 24, with continued improvement through Week 5213,17
Week 24 (DUPIXENT vs placebo)a
10X percentage reduction in EREFS vs placebobb
Week 52 (all patients on DUPIXENT)
63% improvement in EREFS from baselinec
EoE-Endoscopic Reference Score (EREFS) correlates with proximal, mid, and distal eosinophilia and accurately measures the disease severity and treatment response of 5 endoscopic findings—edema (0–2), rings (0–3), exudates (0–2), furrows (0–2), and strictures (0–1)— grading separately for each third of the esophagus. Scores range from 0 to 18, with a higher score indicating higher severity/presence
aSecondary endpoint was change from baseline in EREFS at Week 24.
b51% reduction at Week 24 with DUPIXENT (n=42) vs 5% with placebo (n=29) (P<0.001).
c63% reduction in patients who received DUPIXENT from baseline (n=35), and 65% reduction in patients who switched to DUPIXENT from placebo at Week 24 (n=30).
THE STUDY DESIGN
TREET study design, Part A, A/C13

Patients feel liberated from EoE with transformative change to quality of life
DUPIXENT signficantly improved quality of life vs placebo at Week 2420
Symptom frequency at week 24
Improvement in symptom frequency at Week 24
2X Improvement in symptom frequency with Dupixent vs placebo (p<0.01)a

Chest Pain

Stomach Pain

Heartburn

Regurgitation

Vomiting
The 5-Item EoE Symptom Questionnaire (EoE-SQ-Frequency) is a patient-reported assessment that measures the frequency of symptoms other than dysphagia or swallowing pain. The maximum score is 25, with higher scores indicating greater symptom severity and frequency.
aAs measured by EoE-SQ-Frequency, DUPIXENT score was -3.4 at Week 24 vs -1.7 for placebo.
Disease burden at week 24
Symptom frequency at week 24
Improvement in symptom frequency at Week 24
2X Improvement in symptom frequency with Dupixent vs placebo (p<0.01)a
Improvement in disease burden at Week 24
~2.5X Improvement in disease burden with Dupixent vs placebo (p<0.01)b
Emotional
- Bothered by symptoms of
- EoE Worried about trouble swallowing
- Worried about choking
Productivity
- Difficulty keeping up with things at work or school
- Missing work or school
Social
- Embarrassed
- Worried about trouble swallowing while in a public place
- Difficulty taking part in social activities that involve eating food
- Impact on relationships with family and friends
Sleep
- Sleep disruption
The 11-Item EoE Impact Questionnaire (EoE-IQ) is a patient-reported assessment that measures health-related impacts of EoE: Patients record responses to questions that evaluate quality of life using a 5-point response option: ranging from “Not at all” to “Extremely.” The maximum score is 5, with higher scores indicating a greater impact on quality of life.
bAs measured by EoE-IQ, DUPIXENT score was -0.61 at Week 24 vs -0.25 for placebo.
The study design
TREET study design, Part A, A/C13

Dupixent offers EoE patients more than short-term options for their uncontrolled symptoms
My Story
Ever since I was diagnosed with EoE, trying to manage it has been a pain. Swallowing topical corticosteroids has been especially rough for me. They're disgusting and they hardly help at all, so sometimes I don't even take them. No matter what I’ve tried, the treatments don't seem worth it.
My symptoms
- My trouble swallowing is painful and really limits my diet
- I get nausea and heartburn when food gets stuck in my throat
- The taste of my topical corticosteroid slurry is awful. I hate taking it
Treatment and goals
- My doctor started me on an elimination diet, then tried a high-dose PPI for 8 weeks
- Oral topical corticosteroids taste terrible and hardly work for me, so I only take them sometimes
- I want a therapy I can actually tolerate that can give me some lasting symptom control
PPI, proton pump inhibitor.

Patient profiles are representative and are not actual patients on DUPIXENT. Individual patient response may vary.
My Story
I had an active social life before I got my EoE diagnosis. Even with the management strategies my doctor recommended, it’s been years since I’ve been able to go out to dinner without worrying about choking in public. No matter what I’ve tried, my symptoms are still uncontrolled.
My symptoms
- It hurts when I have trouble swallowing, and it’s really humiliating when it happens in public
- Food gets stuck in my throat on a regular basis
- My doctor had to dilate my esophagus because my throat had narrowed so much
Treatment and goals
- My doctor first recommended I cut foods that are difficult to swallow out of my diet
- I tried topical corticosteroid slurries multiple times, but I haven’t seen any satisfying results from them
- I need a treatment option that can get my symptoms under control and give me my life back

Patient profiles are representative and are not actual patients on DUPIXENT. Individual patient response may vary.
Established safety in adults and adolescents with eosinophilic esophagitis13
DUPIXENT is a fully human monoclonal antibody with a safety pro"le comparable to placebo13,a
Adverse events in EoE, CRSwNP, asthma, and atopic dermatitis clinical trialsa
MeDRA System Organ Class |
Frequencyb |
Adverse Reaction |
Blood and lymphatic system disorder |
Common |
Eosinophilia |
Immune system disorders |
Uncommon |
Angioedemac |
Musculoskeletal and connective tissue disorders |
Common |
Arthralgiac |
Skin and subcutaneous tissue disorders |
Uncommon |
Facial rashd |
General disorders and administration site conditions |
Common |
Injection site reactions (includes erythema, edema, pruritus, and pain) |
Safety heritage across multiple indications and real-world use in [750,000] adult, adolescent, and pediatric patients21

Dupixent is not an immunosuppressant
aDUPIXENT was studied in 12 randomized, placebo-controlled trials, including atopic dermatitis, asthma, CRSwNP, and EoE patients. The pivotal controlled studies involved 4,206 patients receiving dupilumab and 2,326 patients receiving placebo during the controlled period.
bEye disorders and oral herpes occurred predominantly in atopic dermatitis studies.
cThe frequencies for eye pruritus, blepharitis, and dry eye were common, and ulcerative keratitis was uncommon in atopic dermatitis studies.
dFrom postmarketing reporting.
AE, adverse events; MedDRA, Medical Dictionary for Regulatory Activities.
AE occurring predominantly in atopic dermatitis clinical trials
Adverse events in EoE, CRSwNP, asthma, and atopic dermatitis clinical trialsa
MeDRA System Organ Class |
Frequencya |
Adverse Reaction |
Infections and infestations |
Common |
Conjunctivitis |
Eye disorders |
Common Uncommon Rare |
Conjunctivitis allergic Keratitisb Ulcerative keratititisb,c |
aEye disorders and oral herpes occurred predominantly in atopic dermatitis studies.
bThe frequencies for eye pruritus, blepharitis, and dry eye were common, and ulcerative keratitis was uncommon in atopic dermatitis studies.
c From postmarketing reporting.
Dupixent—transform the course of eoe with rapid and sustained results
DUPIXENT targets type 2 inflammation, the underlying cause of EoE, to deliver rapid and sustained improvements across key clinical disease measures3,12,13
The first and only biologic targeting type 2 inflammation in EoE
Clinical: Reduced frequency and severity of dysphagia
up to 75% reduction in dysphagia at Week 5213,a
Histologic: Achieved remission in peak esophageal intraepithelial eosinophil count
up to 82% of patients achieved histological response (<15 EOS/HPF) at Week 5217,b
Endoscopic: Reduced endoscopic signs of inflammation and fibrosis (strictures)
up to 63% reduction in dysphagia at Week 5213,a
a75% reduction in patients who received DUPIXENT from baseline (n=40), and 66% reduction in patients who switched to DUPIXENT from placebo at Week 24 (n=37).
b 82% of patients who received DUPIXENT from baseline achieved histological response (n=34), and 70% of patients who switched to DUPIXENT from placebo achieved histological response (n=30).
c63% reduction in patients who received DUPIXENT from baseline (n=35), and 65% reduction in patients who switched to DUPIXENT from placebo at Week 24 (n=30).
Histological normalization is possible with Dupixent
DUPIXENT significantly normalized peak esophageal intraepithelial eosinophil count vs placebo at Week 24, with continued improvement at Week 5218
Proportion of patients who achieved normalization rates from baseline through Week 24 and Week 5218


UP TO 29% Achieved normalization on Dupixent at week 52 19,a
Peak esophageal intraepithelial eosinophil count (eosinophils per high-power field, or EOS/HPF) determines histologic outcome, using both percent change in peak EOS/HPF as well as proportion of patients achieving a treatment response.
a29% of patients who received DUPIXENT from baseline achieved histological normalization at Week 52 (n=34), and 27% of patients who switched to DUPIXENT from placebo at Week 24 achieved histological normalization (n=30).
Transformative improvement in histological severity beyond reducing eosinophil count
DUPIXENT signficantly improved histology vs placebo at Week 24, with sustained improvements through Week 5213
Severity of histological abnormalities (grade) at Week 24a

Extent of histological abnormalities (stage) at Week 24a

Improvements in degree and extent of histological severity were sustained through Week 52
The Eosinophilic Esophagitis Histologic Scoring System (EoE-HSS) measures histologic changes in the esophagus beyond eosinophil count and includes features of epithelial barrier function and remodeling. The EoE-HSS grades 8 features of EoE to quantify frequency, severity, and extent of esophageal abnormality.
Histological degree of severity (grade) and histological extent of severity (stage) are scored using a 4-point scale for each feature (0=normal, 3=most severe or extensive). The maximum possible grade or stage score for each biopsy is 24.
aSecondary endpoints were severity of histological abnormalities (grade) and extent of histological abnormalities (stage) at Week 24.
Patients feel "Much better" after taking dupixent
DUPIXENT offers patients improvement they can feel vs placebo at Week 2420
Patient Global Impression of Change (PGIC)


47% of patients reported feeling "Very much better" At week 24 vs 11% on placebo
The Patient Global Impression of Change (PGIC) is a patient-reported assessment that measures their feelings regarding the dysphagia symptoms of EoE. Patients record responses to questions on a scale ranging from “very much better” to “very much worse.”
Simple weekly dosing
You decide: patients administer at home or you administer at the office13
Dosage regimen in adults and pediatric patients

NO LOADING DOSE
300 mg weeklya,b
1 pre-filled pen or syringe
Administration methods

300 mg dose shown
a300 mg=2 mL solution.
bDUPIXENT 300 mg weekly has not been studied in patients with EoE who weigh less than 40 kg.
How to use Dupixent

- Administer the subcutaneous injection into the thigh or abdomen, except for the 5 cm around the navel
- The upper arm can also be used if a caregiver administers the injection
- Rotate the injection site with each injection. DO NOT inject DUPIXENT into skin that is tender, damaged, bruised, or scarred

Injection by caregiver only

Self-injection or injection by caregiver
How to use DUPIXENT
DUPIXENT is intended for use under the guidance of a healthcare provider
A patient or caregiver may inject DUPIXENT after receiving training in subcutaneous injection technique using the pre-filled syringe or pre-filled pen
- In pediatric patients 12 years of age and older, it is recommended that DUPIXENT be administered by or under the supervision of an adult
- Provide proper training to patients and/or caregivers on the preparation and administration of DUPIXENT prior to use, according to the Instructions for Use
DUPIXENT can be administered in the office under the guidance of a healthcare provider if the patient is not an appropriate candidate for at-home administration
Missed dose information
If a weekly dose is missed, administer the dose as soon as possible, starting a new schedule based on this date
Dupixent was studied in adolescent and adult patients with EoE
The clinical trial program consisted of a 24-week treatment study followed by a 28-week extended active-treatment period13
TREET study design, Part A, A/C13

Co-primary endpoints:
- Histological remission (peak esophageal intraepithelial eosinophil count ≤6 EOS/HPF) at Week 24
- Change from baseline in DSQ score at Week 24
Secondary endpoints:
- Percent change from baseline in peak esophageal intraepithelial eosinophil count
- Absolute change from baseline in EoE-HSS mean grade score
- Absolute change from baseline in EoE-HSS mean stage score
- Absolute change from baseline in EoE-EREFS
- Proportion of patients achieving peak esophageal intraepithelial eosinophil count of <15 EOS/HPF
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Chehade M, Jones SM, Pesek RD, et al. Phenotypic characterization of eosinophilic esophagitis in a large multicenter patient population from the Consortium for Food Allergy Research. J Allergy Clin Immunol Pract. 2018;6(5):1534-1544.e5. doi:10.1016/j.jaip.2018.05.038
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Wolf WA, Dellon ES. Eosinophilic esophagitis and proton pump inhibitors: controversies and implications for clinical practice. Gastroenterol Hepatol (N Y). 2014;10(7):427- 432.
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D’Alessandro A, Esposito D, Pesce M, Cuomo R, De Palma GD, Sarnelli G. Eosinophilic esophagitis: from pathophysiology to treatment. World J Gastrointest Pathophysiol. 2015;6(4):150-158. doi:104291/wjgp.v6.i4.150
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Gomez Torrijos E, Gonzalez-Mendiola R, Alvarado M, et al. Eosinophilic esophagitis: review and update. Front Med (Lausanne). 2018;5:247. doi:10.3389/fmed.2018.00247
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Lucendo AJ, Molina-Infante J, Arias Á, et al. Guidelines on eosinophilic esophagitis: evidence-based statements and recommendations for diagnosis and management in children and adults. United European Gastroenterol J. 2017;5(3):335-358. doi:10.1177/2050640616689525
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Dellon ES, Hirano I. Epidemiology and natural history of eosinophilic esophagitis. Gastroenterology. 2018;154(2):319-332.e3. doi:10.1053/j.gastro.2017.06.067
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Li-Kim-Moy JP, Tobias V, Day AS, Leach S, Lemberg DA. Esophageal subepithelial fibrosis and hyalinization are features of eosinophilic esophagitis. J Pediatr Gastroenterol Nutr. 2011;52(2):147-153. doi:10.1097/MPG.0b013e3181ef37a1
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Straumann A, Bussmann C, Zuber M, Vannini S, Simon HU, Schoepfer A. Eosinophilic esophagitis: analysis of food impaction and perforation in 251 adolescent and adult patients. Clin Gastroenterol Hepatol. 2008;6(5):598-600. doi:10.1016/j.cgh.2008.02.003
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Second DUPIXENT® (dupilumab) phase 3 eosinophilic esophagitis trial to demonstrate significant disease improvements, underscoring role of type 2 inflammation in this complex disease. Press release. Sanofi. March 25, 2021. Accessed June 13, 2022. https://www.sanofi.com/en/media-room/press-releases/2021/2021-10-25-05-00-00-2319486#
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van Rhijn BD, Bredenoord AJ. Management of eosinophilic esophagitis based on pathophysiological evidence. J Clin Gastroenterol. 2017;51(8):659-668. doi:10.1097/mcg.0000000000000879
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Dupixent USPI 2022 .
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Bredenoord AJ, Patel K, Schoepfer AM, et al. Disease burden and unmet need in eosinophilic esophagitis. Am J Gastroenterol. 2022. doi:10.14309/ajg.0000000000001777
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O’Shea KM, Aceves SS, Dellon ES, et al. Pathophysiology of eosinophilic esophagitis. Gastroenterology. 2018;154(2):333-345.
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Hill DA, Spergel JM. The immunologic mechanisms of eosinophilic esophagitis. Curr Allergy Asthma Rep. 2016;16(2):9. doi:10.1007/s11882-015-0592-3
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Dellon ES, Rothenberg ME, Collins MH, et al. Dupilumab efficacy and safety up to 52 weeks in adult and adolescent patients with eosinophilic oesophagitis: results from Part A and C of a randomized, placebo-controlled, three-part Phase 3 LIBERTY EoE TREET study. United European Gastroenterology. 2021.
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Dellon ES, Rothenberg ME, Collins MH, et al. A phase 3, randomized, 3-part study to investigate the efficacy and safety of dupilumab in adult and adolescent patients with eosinophilic esophagitis: results from part A. American College of Gastroenterology 2020 Virtual. October 23-28, 2020. CSR. 2022.
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Data on file, Regeneron Pharmaceuticals, Inc. TREET Part C. CSR. 2022.
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Dellon ES, Rothenberg ME, Hirano I, et al. Dupilumab improves health-related quality of life and reduces symptom burden in patients with eosinophilic esophagitis: results from part A of a randomized, placebo-controlled, three-part, phase 3 study. Gastro 2021 Prague. December 2021.
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DUPIXENT® (dupilumab) approved by European Commission for children aged 6 to 11 years with severe asthma with type 2 inflammation. Press release. Sanofi. April 7, 2022. Accessed June 15, 2022. https://www.sanofi.com/en/media-room/press-releases/2022/2022-04-07-05-00-00-2418107#