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Controlled Clinical Study of Dupilumab in Patients With Nasal Polyps

A Randomized, Double-blind, 52-week, Placebo Controlled Efficacy and Safety Study of Dupilumab, in Patients With Bilateral Nasal Polyposis on a Background Therapy With Intranasal Corticosteroids

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02898454
Acronym
SINUS-52
Enrollment
448
Registered
2016-09-13
Start date
2016-11-28
Completion date
2018-11-16
Last updated
2019-10-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chronic Rhinosinusitis Phenotype With Nasal Polyps (CRSwNP)

Brief summary

Primary Objective: To evaluate the efficacy of dupilumab 300 mg every 2 weeks (q2w) compared to placebo on a background of mometasone furoate nasal spray (MFNS) in reducing nasal congestion (NC)/obstruction severity and endoscopic nasal polyp score (NPS) in participants with bilateral nasal polyps (NP). In addition for Japanese participants, reduction in computed tomography (CT) scan opacification of the sinuses was a co-primary objective. Secondary Objectives: * To evaluate the efficacy of dupilumab in improving total symptoms score. * To evaluate the efficacy of dupilumab in improving sense of smell. * To evaluate the efficacy of dupilumab in reducing CT scan opacification of the sinuses (primary objective for Japanese participants). * To evaluate ability of dupilumab in reducing proportion of participants who required treatment with systemic corticosteroids (SCS) or surgery for NP. * To evaluate the effect of dupilumab on participant reported outcomes and health related quality of life. * To evaluate the efficacy of dupilumab 300 mg q2w up to Week 52. * To evaluate the efficacy of dupilumab 300 mg q2w up to Week 24 followed by 300 mg every 4 weeks (q4w) up to Week 52. * To evaluate the effect of dupilumab in the subgroups of participants with prior surgery and comorbid asthma including non-steroid anti-inflammatory drug exacerbated respiratory disease. * To evaluate the safety of dupilumab in participants with bilateral NP. * To evaluate functional dupilumab concentrations (systemic exposure) and incidence of treatment emergent anti-drug antibodies.

Detailed description

The total study duration per participant was up to 68 weeks that consisted of a 4-weeks run-in period, 52-weeks treatment period, and a 12-weeks post treatment period.

Interventions

Pharmaceutical form: Solution Route of administration: Subcutaneous

DRUGPlacebo

Pharmaceutical form: Solution Route of administration: Subcutaneous

DRUGMometasone furoate nasal spray

Pharmaceutical form: Suspension Route of administration: Intranasal

Sponsors

Regeneron Pharmaceuticals
CollaboratorINDUSTRY
Sanofi
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

: * Participants with bilateral sino-nasal polyposis that despite prior treatment with SCS anytime within the past 2 years; and/or had a medical contraindication/intolerance to SCS; and/or had prior surgery for NP at the screening visit, had: * An endoscopic bilateral NPS at Visit 1 (V1) of at least 5 out of a maximum score of 8 (with a minimum score of 2 in each nasal cavity). * Ongoing symptoms (for at least 8 weeks before V1) of NC/blockage/obstruction with moderate or severe symptom severity (score 2 or 3) at V1 and a weekly average severity of greater than 1 at time of randomization (V2), and another symptom such as loss of smell, rhinorrhea (anterior/posterior). * Signed written informed consent.

Exclusion criteria

* Participants \<18 years of age. * Participant who had been previously treated in dupilumab studies. * Participant who had taken: * Biologic therapy/ systemic immunosuppressant to treat inflammatory disease or autoimmune disease (eg, rheumatoid arthritis, inflammatory bowel disease, primary biliary cirrhosis, systemic lupus erythematosus, multiple sclerosis, etc.) within 2 months before V1 or 5 half-lives, whichever was longer. * Any experimental monoclonal antibody within 5 half-lives or within 6 months before V1 if the half-life was unknown. * Anti-immunoglobulin E therapy (omalizumab) within 130 days prior to V1. * Participants who received leukotriene antagonists/modifiers at V1 unless they were on a continuous treatment for at least 30 days prior to V1. * Initiation of allergen immunotherapy within 3 months prior to V1 or a plan to begin therapy or change its dose during the run-in period or the randomized treatment period. * Participants who underwent any and/or sinus surgery (including polypectomy) within 6 months before V1. * Participants who had a sino-nasal or sinus surgery changing the lateral wall structure of the nose making impossible the evaluation of NPS. * Participants with conditions/concomitant diseases making them non evaluable at V1 or for the primary efficacy endpoint such as: * Antrochoanal polyps, * Nasal septal deviation that would occlude at least one nostril, * Acute sinusitis, nasal infection or upper respiratory infection, * Ongoing rhinitis medicamentosa, * Allergic granulomatous angiitis (Churg-Strauss syndrome), granulomatosis with polyangiitis (Wegener's granulomatosis),Young's syndrome, Kartagener's syndrome or other dyskinetic ciliary syndromes, concomitant cystic fibrosis, * Radiologic suspicion, or confirmed invasive or expansive fungal rhinosinusitis. * Participants with nasal cavity malignant tumor and benign tumors (eg, papilloma, blood boil etc.). * Participants with forced expiratory volume 50% or less (of predicted normal). * Participants who received concomitant treatment prohibited in the study. * Treatment with a live (attenuated) vaccine within 4 weeks before the baseline visit. * Treatment with a live (attenuated) vaccine within 12 weeks before the baseline visit. * History of human immunodeficiency virus (HIV) infection or positive HIV serology at screening. * Positive with hepatitis B surface antigen or hepatitis C antibody at the screening visit. * Active chronic or acute infection requiring systemic treatment within 2 weeks before the baseline visit. * Known or suspected history of immunosuppression. * Pregnant or breastfeeding women, or women planning to become pregnant or breastfeed during the study. * Women unwilling to use adequate birth control, if of reproductive potential and sexually active. The above information was not intended to contain all considerations relevant to a Participant's potential participation in a clinical trial.

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline at Week 24 in Nasal Congestion/Obstruction Symptom Severity ScoreBaseline, Week 24NC symptom severity was assessed by the participants on a daily basis from visit 1 and throughout the study using an e-diary on a scale of 0 to 3, where 0 = no symptoms, 1 = mild symptoms, 2 = moderate symptoms and 3 = severe symptoms, with higher scores indicated more severity. Least squares (LS) means and standard error (SE) were obtained from Analysis of covariance (ANCOVA) model described in Statistical Analysis Overview. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.
Change From Baseline at Week 24 in Nasal Polyp ScoreBaseline, Week 24NPS: sum of right, left nostril scores, evaluated by nasal endoscopy. For each nostril, NPS was graded based on polyp size from 0 = no polyps to 4 = large polyps causing complete obstruction of inferior nasal cavity; lower score = smaller sized polyps. Total NPS: sum of right and left nostril scores, ranges from 0 (no polyps) to 8 (large polyps), higher score = more severe disease. NPS was assessed by centralized, blinded, independent review of the nasal endoscopy video recordings. LS means and SE were obtained from ANCOVA model described in Statistical Analysis Overview. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.

Secondary

MeasureTime frameDescription
Change From Baseline at Week 24 in the University of Pennsylvania Smell Identification Test (UPSIT) ScoreBaseline, Week 24The UPSIT was a 40-item test to measure the individual's ability to detect odors. Total score ranges from 0 (anosmia) to 40 (normal sense of smell), lower score indicated severe smell loss. LS means and SE were obtained from ANCOVA model described in Statistical Analysis Overview. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.
Change From Baseline at Week 24 in Severity of Decreased/Loss of Smell as Assessed by Participant DailyBaseline, Week 24The severity of decreased/loss of sense of smell was reported by the participants using a 0 to 3 categorical scale (where 0 = no symptoms, 1 = mild symptoms, 2 = moderate symptoms and 3 = severe symptoms), higher score indicated more severe symptoms. LS means and SE were obtained from ANCOVA model described in Statistical Analysis Overview. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.
Change From Baseline at Week 24 in 22-item Sino-nasal Outcome Test (SNOT-22) ScoresBaseline, Week 24The SNOT-22 is a validated questionnaire was used to assess the impact of chronic rhinosinusitis phenotype with nasal polyps (CRSwNP) on health-related quality of life (HRQoL). It is a 22 item questionnaire with each item assigned a score ranging from 0 (no problem) to 5 (problem as bad as it can be). The total score may range from 0 (no disease) to 110 (worst disease), lower scores representing better health related quality of life. LS means and SE were obtained from ANCOVA model described in Statistical Analysis Overview. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.
Change From Baseline at Week 52 in Nasal Polyp ScoreBaseline, Week 52NPS was the sum of right and left nostril scores, as evaluated by means of nasal endoscopy. For each nostril, NPS was graded based on polyp size from 0 to 4 (0 = no polyps to 4 = large polyps causing complete obstruction of the inferior nasal cavity), with a lower score indicating smaller-sized polyps. Total NPS was the sum of right and left nostril scores and ranges from 0 (no polyp) to 8 (large polyp), with highest score representing more severe disease. NPS was assessed by centralized, blinded, independent review of the nasal endoscopy video recordings. Data were analyzed using a hybrid method of the WOCF and MI. LS means and SE were obtained from ANCOVA model described in Statistical Analysis Overview.
Change From Baseline at Week 52 in Nasal Congestion/Obstruction Symptom Severity ScoreBaseline, Week 52NC symptom severity was assessed by the participants on a daily basis from Visit 1 and throughout the study using an e-diary on a scale of 0 to 3, where 0 = no symptoms, 1 = mild symptoms, 2 = moderate symptoms and 3 = severe symptoms, with higher scores indicated more severity. LS means and SE were obtained from ANCOVA model described in Statistical Analysis Overview.
Change From Baseline at Week 52 in 22-item Sino-nasal Outcome Test ScoresBaseline, Week 52The SNOT-22 is a validated questionnaire that was used to assess the impact of CRSwNP on HRQoL. It is a 22 item questionnaire with each item assigned a score ranging from 0 (no problem) to 5 (problem as bad as it can be). The total score may range from 0 (no disease) to 110 (worst disease), lower scores representing better health related quality of life. LS means and SE were obtained from ANCOVA model described in Statistical Analysis Overview.
Rescue Treatment Use: Estimate of Percentage of Participants With Greater Than or Equal to (>=) 1 Event by Week 52 Obtained Using Kaplan-Meier MethodBaseline up to 52 weeksRescue treatment was defined as usage of systemic corticosteroids (SCS) or NP surgery (actual or planned) during the treatment period. Rescue treatment included: * SCS: betamethasone, deflazacort, dexamethasone, dexamethasone sodium phosphate, hydrocortisone, meprednisone, methylprednisolone, methylprednisolone sodium succinate, prednisolone, prednisolone sodium succinate, prednisone, stelamin, triamcinolone, and triamcinolone acetonide. * Sino-nasal surgery for nasal polyps when there was worsening of signs and/or symptoms during the study. Estimate of percentage of participants with event by Week 52 was obtained using Kaplan-Meier method.
Change From Baseline at Week 52 in Total Symptom ScoreBaseline, Week 52The TSS was the sum of participant-assessed nasal symptom scores for NC/obstruction, decreased/loss of sense of smell, and rhinorrhea (anterior/posterior nasal discharge), each accessed on 0-3 categorical scale (where 0 = no symptoms, 1 = mild symptoms, 2 = moderate symptoms and 3 = severe symptoms). Total score ranged from 0 (no symptoms) to 9 (severe symptoms). Higher score indicated more severe symptoms. Data was analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates.
Change From Baseline at Week 52 in the University of Pennsylvania Smell Identification Test ScoreBaseline, Week 52The UPSIT was a 40-item test to measure the individual's ability to detect odors. Total score ranges from 0 (anosmia) to 40 (normal sense of smell), lower score indicated severe smell loss. Data was analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates.
Change From Baseline at Week 52 in Severity of Decreased/Loss of SmellBaseline, Week 52The severity of decreased/loss of sense of smell was reported by the participants using a 0 to 3 categorical scale (where 0 = no symptoms, 1 = mild symptoms, 2 = moderate symptoms and 3 = severe symptoms), higher score indicated more severe symptoms. Data was analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates.
Change From Baseline at Week 52 in Opacification of Sinuses Measured by Lund-Mackay ScoreBaseline, Week 52The LMK scoring system rated each of both the left and right frontal, maxillary, sphenoid, ostiomeatal complex, anterior ethmoid and posterior ethmoid sinuses using following grading: 0 = normal, 1 = partial opacification, 2 = total opacification. The total score was the sum of scores from each side and ranges from 0 (normal) to 24 (more opacified); higher score indicated more severe disease. Data was analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates.
Change From Baseline at Week 24 in Visual Analogue Scale (VAS) for RhinosinusitisBaseline, Week 24The VAS for rhinosinusitis was used to evaluate the total disease severity. The participants were asked to indicate on a 10 centimeters VAS the answer to the question, How troublesome are your symptoms of your rhinosinusitis? The range of the VAS was from 0 (not troublesome) to 10 (worse thinkable troublesome), where higher score indicated worse thinkable troublesome. Data was analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.
Change From Baseline at Week 52 in Visual Analogue Scale for RhinosinusitisBaseline, Week 52The VAS for rhinosinusitis was used to evaluate the total disease severity. The participants were asked to indicate on a 10 centimeters VAS the answer to the question, How troublesome are your symptoms of your rhinosinusitis? The range of the VAS was from 0 (not troublesome) to 10 (worse thinkable troublesome), where higher score indicated worse thinkable troublesome. Data was analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates.
Change From Baseline at Week 24 in Nasal Peak Inspiratory Flow (NPIF)Baseline, Week 24NPIF evaluation represented a physiologic measure of the air flow through both nasal cavities during forced inspiration expressed in liters per minute. Higher NPIF values were indicative of better nasal air flow. Data was analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.
Change From Baseline at Week 24 in Rhinorrhea Daily Symptom ScoreBaseline, Week 24Rhinorrhea was reported by the participants using a 0 to 3 categorical scale (where 0 = no symptoms, 1 = mild symptoms, 2 = moderate symptoms and 3 = severe symptoms), where higher scores indicated more severe symptoms. Data was analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.
Change From Baseline at Week 52 in Rhinorrhea Daily Symptom ScoreBaseline, Week 52Rhinorrhea was reported by the participants using a 0 to 3 categorical scale (where 0 = no symptoms, 1 = mild symptoms, 2 = moderate symptoms and 3 = severe symptoms), where higher scores indicated more severe symptoms. Data was analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates.
Mean Total Systemic Corticosteroids Rescue Dose Prescribed During Treatment PeriodBaseline to Week 52SCS included: betamethasone, deflazacort, dexamethasone, dexamethasone sodium phosphate, hydrocortisone, meprednisone, methylprednisolone, methylprednisolone sodium succinate, prednisolone, prednisolone sodium succinate, prednisone, stelamin, triamcinolone, and triamcinolone acetonide. For every participant, the total dose was calculated as (prescribed total daily dose\*duration of SCS use). Then, mean of the total dose of 64 participants (placebo group), 17 participants (dupilumab 300 mg q2w then q4w) and 22 participants (dupilumab 300 mg q2w) was derived.
Total Systemic Corticosteroids Rescue Intake Duration: Average Duration Per ParticipantBaseline to Week 52Rescue treatment was defined as usage of SCS or NP surgery (actual or planned) during the treatment period. SCS Rescue intake duration was defined as the duration (in days) from start of SCS rescue medication till the end of SCS rescue treatment.
Changed From Baseline at Week 24 in Forced Expiratory Volume in 1 Second (FEV1) for Participants With AsthmaBaseline, Week 24FEV1 was the volume of air exhaled in the first second of a forced expiration as measured by spirometer. Data was analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment group, prior surgery history, and regions as covariates. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.
Change From Baseline at Week 52 in Forced Expiratory Volume in 1 Second for Participants With AsthmaBaseline, Week 52FEV1 was the volume of air exhaled in the first second of a forced expiration as measured by spirometer. Data was analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment group, prior surgery history, and regions as covariates.
Change From Baseline at Week 24 in Asthma Control Questionnaire-6 (ACQ-6) for Participants With AsthmaBaseline, Week 24ACQ-6 had 6 questions which assessed the most common asthma symptoms (woken by asthma, symptoms on waking, activity limitation, shortness of breath, wheezing, puffs/inhalations use). Participants were asked to recall how their asthma had been during the previous week and to respond to the symptom questions on a 7-point scale ranged from 0 = no impairment to 6 = maximum impairment. The ACQ-6 score was the mean of the scores of all 6 questions and therefore, ranged from 0 (totally controlled) to 6 (severely uncontrolled), with higher scores indicated lower asthma control. Data were analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment, asthma status, prior surgery history, and regions as covariates. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.
Change From Baseline at Week 52 in Asthma Control Questionnaire-6 for Participants With AsthmaBaseline, Week 52ACQ-6 had 6 questions which assessed the most common asthma symptoms (woken by asthma, symptoms on waking, activity limitation, shortness of breath, wheezing, puffs/inhalations use). Participants were asked to recall how their asthma had been during the previous week and to respond to the symptom questions on a 7-point scale ranged from 0 = no impairment to 6 = maximum impairment. The ACQ-6 score was the mean of the scores of all 6 questions and therefore, ranged from 0 (totally controlled) to 6 (severely uncontrolled), with higher scores indicated lower asthma control. Data were analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment, asthma status, prior surgery history, and regions as covariates.
Change From Baseline at Week 24 in Nasal Congestion/Obstruction Symptom Severity Score: Subgroup of Participants With AsthmaBaseline, Week 24NC symptom severity was assessed by the participants on a daily basis from Visit 1 and throughout the study using an e-diary on a scale of 0 to 3, where 0 = no symptoms, 1 = mild symptoms, 2 = moderate symptoms and 3 = severe symptoms, with higher scores indicated more severity. Data were analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting ANCOVA model with corresponding baseline, treatment group, prior surgery history, and regions as covariates. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.
Change From Baseline at Week 52 in Nasal Congestion/Obstruction Symptom Severity Score: Subgroup of Participants With AsthmaBaseline, Week 52NC symptom severity was assessed by the participants on a daily basis from Visit 1 and throughout the study using an e-diary on a scale of 0 to 3, where 0 = no symptoms, 1 = mild symptoms, 2 = moderate symptoms and 3 = severe symptoms, with higher scores indicated more severity. Data were analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting ANCOVA model with corresponding baseline, treatment group, prior surgery history, and regions as covariates.
Change From Baseline at Week 24 in Nasal Congestion/Obstruction Symptom Severity Score: Subgroup of Participants With Prior Nasal Polyp SurgeryBaseline, Week 24NC symptom severity was assessed by the participants on a daily basis from Visit 1 and throughout the study using an e-diary on a scale of 0 to 3, where 0 = no symptoms, 1 = mild symptoms, 2 = moderate symptoms and 3 = severe symptoms, with higher scores indicated more severity. Data were analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting ANCOVA model with corresponding baseline, treatment group, prior surgery history, and regions as covariates. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.
Change From Baseline at Week 52 in Nasal Congestion/Obstruction Symptom Severity Score: Subgroup of Participants With Prior Nasal Polyp SurgeryBaseline, Week 52NC symptom severity was assessed by the participants on a daily basis from Visit 1 and throughout the study using an e-diary on a scale of 0 to 3, where 0 = no symptoms, 1 = mild symptoms, 2 = moderate symptoms and 3 = severe symptoms, with higher scores indicated more severity. Data were analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline, treatment group, asthma/NSAID-ERD status, and regions as covariates.
Change From Baseline at Week 24 in Nasal Polyp Score: Subgroup of Participants With AsthmaBaseline, Week 24NPS was the sum of right and left nostril scores, as evaluated by means of nasal endoscopy. For each nostril, NPS was graded from 0 to 4 (0 = no polyps to 4 = large polyps causing complete obstruction of the inferior nasal cavity), with a lower score indicating smaller-sized polyps. Total NPS was the sum of right and left nostril scores and ranges from 0 (no polyp) to 8 (large polyp), with highest score representing more severe disease. NPS was assessed by centralized, blinded, independent review of the nasal endoscopy video recordings. Data were analyzed using a hybrid method of the WOCF and MI. LS mean and SE were obtained from ANCOVA model. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.
Change From Baseline at Week 52 in Nasal Polyp Score: Subgroup of Participants With AsthmaBaseline, Week 52NPS was the sum of right and left nostril scores, as evaluated by means of nasal endoscopy. For each nostril, NPS was graded from 0 to 4 (0 = no polyps to 4 = large polyps causing complete obstruction of the inferior nasal cavity), with a lower score indicating smaller-sized polyps. Total NPS was the sum of right and left nostril scores and ranges from 0 (no polyp) to 8 (large polyp), with highest score representing more severe disease. NPS was assessed by centralized, blinded, independent review of the nasal endoscopy video recordings. Data were analyzed using a hybrid method of the WOCF and MI. LS mean and SE were obtained from ANCOVA model.
Change From Baseline at Week 24 in Nasal Polyp Score: Subgroup of Participants With Prior Nasal Polyp SurgeryBaseline, Week 24NPS was the sum of right and left nostril scores, as evaluated by means of nasal endoscopy. For each nostril, NPS was graded from 0 to 4 (0 = no polyps to 4 = large polyps causing complete obstruction of the inferior nasal cavity), with a lower score indicating smaller-sized polyps. Total NPS was the sum of right and left nostril scores and ranges from 0 (no polyp) to 8 (large polyp), with highest score representing more severe disease. NPS was assessed by centralized, blinded, independent review of the nasal endoscopy video recordings. Data were analyzed using a hybrid method of the WOCF and MI. LS mean and SE were obtained from ANCOVA model. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.
Change From Baseline at Week 52 in Nasal Polyp Score: Subgroup of Participants With Prior Nasal Polyp SurgeryBaseline, Week 52NPS was the sum of right and left nostril scores, as evaluated by means of nasal endoscopy. For each nostril, NPS was graded from 0 to 4 (0 = no polyps to 4 = large polyps causing complete obstruction of the inferior nasal cavity), with a lower score indicating smaller-sized polyps. Total NPS was the sum of right and left nostril scores and ranges from 0 (no polyp) to 8 (large polyp), with highest score representing more severe disease. NPS was assessed by centralized, blinded, independent review of the nasal endoscopy video recordings. Data were analyzed using a hybrid method of the WOCF and MI. LS mean and SE were obtained from ANCOVA model.
Change From Baseline at Week 24 in Opacification of Sinuses Measured by Lund Mackay Score: Subgroup of Participants With AsthmaBaseline, Week 24The LMK scoring system rated each of both the left and right frontal, maxillary, sphenoid, ostiomeatal complex, anterior ethmoid and posterior ethmoid sinuses using following grading: 0 = normal, 1 = partial opacification, 2 = total opacification. The total score was the sum of scores from each side and ranges from 0 (normal) to 24 (more opacified); higher score indicated more severe disease. Data was analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.
Change From Baseline at Week 52 in Opacification of Sinuses Measured by Lund Mackay Score: Subgroup of Participants With AsthmaBaseline, Week 52The LMK scoring system rated each of both the left and right frontal, maxillary, sphenoid, ostiomeatal complex, anterior ethmoid and posterior ethmoid sinuses using following grading: 0 = normal, 1 = partial opacification, 2 = total opacification. The total score was the sum of scores from each side and ranges from 0 (normal) to 24 (more opacified); higher score indicated more severe disease. Data was analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates.
Change From Baseline at Week 24 in Opacification of Sinuses Measured by Lund Mackay Score: Subgroup of Participants With Prior Nasal Polyp SurgeryBaseline, Week 24The LMK scoring system rated each of both the left and right frontal, maxillary, sphenoid, ostiomeatal complex, anterior ethmoid and posterior ethmoid sinuses using following grading: 0 = normal, 1 = partial opacification, 2 = total opacification. The total score was the sum of scores from each side and ranges from 0 (normal) to 24 (more opacified); higher score indicated more severe disease. Data were analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline, treatment group, asthma/NSAID-ERD status, and regions as covariates. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.
Change From Baseline at Week 52 in Opacification of Sinuses Measured by Lund Mackay Score: Subgroup of Participants With Prior Nasal Polyp SurgeryBaseline, Week 52The LMK scoring system rated each of both the left and right frontal, maxillary, sphenoid, ostiomeatal complex, anterior ethmoid and posterior ethmoid sinuses using following grading: 0 = normal, 1 = partial opacification, 2 = total opacification. The total score was the sum of scores from each side and ranges from 0 (normal) to 24 (more opacified); higher score indicated more severe disease. Data were analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline, treatment group, asthma/NSAID-ERD status, and regions as covariates.
Number of Participants With Treatment-emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs) and TEAEs Leading to Treatment DiscontinuationBaseline up to 84 days after last dose of study drug (up to 64 weeks)An Adverse Event (AE) was defined as any untoward medical occurrence that did not necessarily have to have a causal relationship with the study treatment. TEAEs were defined as AEs that developed or worsened in grade or became serious during TEAE period which was defined as the period from the time of first dose of drug until 84 days following the last administration of drug. SAE was defined as any untoward medical occurrence that at any dose: results in death, is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect, is a medically important event.
Change From Baseline at Week 24 in Opacification of Sinuses Measured by Lund Mackay (LMK) ScoreBaseline, Week 24The LMK scoring system rated each of both the left and right frontal, maxillary, sphenoid, ostiomeatal complex, anterior ethmoid and posterior ethmoid sinuses using following grading: 0 = normal, 1 = partial opacification, 2 = total opacification. The total score was the sum of scores from each side and ranges from 0 (normal) to 24 (more opacified); higher score indicated more severe disease. LS means and SE were obtained from ANCOVA model described in Statistical Analysis Overview. NOTE: For Japan regulatory submission only, this endpoint is not included as a secondary outcome measure and is instead one of the co-primary outcome measures. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.
Change From Baseline at Week 52 in European Quality of Life 5 Dimension Scale Visual Analog Scale ScoreBaseline, Week 52The EQ-5D was a standardized HRQoL questionnaire consisting of EQ-5D descriptive system and EQ VAS. The EQ-5D descriptive system comprised of 5 dimensions: mobility, selfcare, usual activities, pain/discomfort and anxiety/depression. Each dimension had 5 levels: no problems, slight problems, moderate problems, severe problems, and extreme problems. EQ VAS recorded the participant's self-rated health on a vertical VAS that allowed them to indicate their health state that can range from 0 (worst imaginable) to 100 (best imaginable).
Functional Dupilumab Concentration in SerumBaseline, Week 2, Week 4, Week 16, Week 24, Week 40, End of treatment (Week 52), End of study (Week 64)
Number of Participants With Treatment-Emergent And Treatment-Boosted Anti-drug Antibodies Response (ADA)Baseline to Week 52ADA response were categorized as: treatment emergent and treatment boosted response. 1) Treatment emergent was defined as a positive response in the ADA assay post first dose, when baseline results are negative or missing. 2) Treatment boosted was defined as: an ADA positive response in the assay post first dose that is greater-than or equal to 4-fold over baseline titer levels, when baseline results are positive.
Change From Baseline at Week 24 in European Quality of Life 5 Dimension Scale (EQ-5D) Visual Analog Scale ScoreBaseline, Week 24The EQ-5D was a standardized HRQoL questionnaire consisting of EQ-5D descriptive system and EQ VAS. The EQ-5D descriptive system comprised of 5 dimensions: mobility, selfcare, usual activities, pain/discomfort and anxiety/depression. Each dimension had 5 levels: no problems, slight problems, moderate problems, severe problems, and extreme problems. EQ VAS recorded the participant's self-rated health on a vertical VAS that allowed them to indicate their health state that can range from 0 (worst imaginable) to 100 (best imaginable). All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.
Change From Baseline at Week 24 in Total Symptom Score (TSS)Baseline, Week 24The TSS was the sum of participant-assessed nasal symptom scores for NC/obstruction, decreased/loss of sense of smell, and rhinorrhea (anterior/posterior nasal discharge), each accessed on 0-3 categorical scale (where 0 = no symptoms, 1 = mild symptoms, 2 = moderate symptoms and 3 = severe symptoms). Total score ranged from 0 (no symptoms) to 9 (severe symptoms). Higher score indicated more severe symptoms. LS means and SE were obtained from ANCOVA model described in Statistical Analysis Overview. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.

Countries

Argentina, Australia, Belgium, Canada, Chile, Israel, Japan, Mexico, Portugal, Russia, Spain, Sweden, Turkey (Türkiye), United States

Participant flow

Recruitment details

Study participants were involved in the study from 28 November 2016 to 16 November 2018 at 117 centers in 14 countries. A total of 806 participants were screened, of which 448 participants were enrolled and randomized to receive dupilumab 300 mg or placebo. A total of 358 participants had screen failures due to failure to meet inclusion criteria.

Pre-assignment details

Randomization was stratified according to asthma and/or non-steroidal anti-inflammatory drug exacerbated respiratory disease (NSAID-ERD) history (yes/no), prior nasal polyps (NP) surgery (yes or not), and country.

Participants by arm

ArmCount
Placebo
Placebo (for dupilumab), 1 SC injection q2w from Day 1 of Week 0 up to Week 52 added to background therapy of intranasal MFNS at stable dose.
153
Dupilumab 300 mg q2w Then q4w
Dupilumab 300 mg SC injection q2w from Day 1 of Week 0 up to Week 24 and then 300 mg q4w until Week 52 added to background therapy of intranasal MFNS at stable dose. After Week 24, Dupilumab administration was alternated with matched placebo injection every other week up to Week 50.
145
Dupilumab 300mg q2w
Dupilumab 300 mg SC injection q2w from Day 1 of Week 0 up to Week 52 added to background therapy of intranasal MFNS at stable dose.
150
Total448

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyAdverse Event412
Overall StudyDid Not Met Eligibility Criteria100
Overall StudyLack of Efficacy410
Overall StudyLost to Follow-up100
Overall StudyProtocol Violation101
Overall StudyWithdrawal by Subject633

Baseline characteristics

CharacteristicPlaceboTotalDupilumab 300mg q2wDupilumab 300 mg q2w Then q4w
Age, Continuous51.67 years
STANDARD_DEVIATION 12.66
51.95 years
STANDARD_DEVIATION 12.45
51.91 years
STANDARD_DEVIATION 11.88
52.28 years
STANDARD_DEVIATION 12.87
Ethnicity (NIH/OMB)
Hispanic or Latino
40 Participants132 Participants50 Participants42 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
113 Participants315 Participants100 Participants102 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants1 Participants0 Participants1 Participants
Nasal Congestion/Obstruction (NC) Symptom Severity Score2.38 score on a scale
STANDARD_DEVIATION 0.54
2.43 score on a scale
STANDARD_DEVIATION 0.59
2.48 score on a scale
STANDARD_DEVIATION 0.62
2.44 score on a scale
STANDARD_DEVIATION 0.59
Nasal Polyp Score (NPS)5.96 score on a scale
STANDARD_DEVIATION 1.21
6.10 score on a scale
STANDARD_DEVIATION 1.21
6.07 score on a scale
STANDARD_DEVIATION 1.22
6.29 score on a scale
STANDARD_DEVIATION 1.2
Race/Ethnicity, Customized
American Indian or Alaska Native
3 Participants12 Participants7 Participants2 Participants
Race/Ethnicity, Customized
Asian/Oriental
18 Participants54 Participants17 Participants19 Participants
Race/Ethnicity, Customized
Black/of African descent
3 Participants7 Participants2 Participants2 Participants
Race/Ethnicity, Customized
Caucasian/White
128 Participants372 Participants124 Participants120 Participants
Race/Ethnicity, Customized
Multiple
1 Participants2 Participants0 Participants1 Participants
Race/Ethnicity, Customized
Native Hawaiian or Other Pacific Islander
0 Participants1 Participants0 Participants1 Participants
Sex: Female, Male
Female
58 Participants169 Participants53 Participants58 Participants
Sex: Female, Male
Male
95 Participants279 Participants97 Participants87 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 1501 / 1480 / 149
other
Total, other adverse events
111 / 15095 / 14890 / 149
serious
Total, serious adverse events
16 / 15012 / 1488 / 149

Outcome results

Primary

Change From Baseline at Week 24 in Nasal Congestion/Obstruction Symptom Severity Score

NC symptom severity was assessed by the participants on a daily basis from visit 1 and throughout the study using an e-diary on a scale of 0 to 3, where 0 = no symptoms, 1 = mild symptoms, 2 = moderate symptoms and 3 = severe symptoms, with higher scores indicated more severity. Least squares (LS) means and standard error (SE) were obtained from Analysis of covariance (ANCOVA) model described in Statistical Analysis Overview. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.

Time frame: Baseline, Week 24

Population: The analysis was performed on intent-to-treat (ITT) population which included all randomized participants who were analyzed according to the treatment group allocated by randomization. Data for this outcome measure was planned to be analyzed for the combined population of participants who received Dupilumab.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 24 in Nasal Congestion/Obstruction Symptom Severity Score-0.38 score on a scaleStandard Error 0.07
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 24 in Nasal Congestion/Obstruction Symptom Severity Score-1.25 score on a scaleStandard Error 0.06
Comparison: Data was analyzed using a hybrid method of the worst-observation carried forward (WOCF) and multiple imputation (MI). The imputed completed data were analyzed by fitting ANCOVA model with the corresponding baseline, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates. Statistical inference obtained from all imputed data was combined using Rubin's rule.p-value: <0.000195% CI: [-1.03, -0.71]ANCOVA
Primary

Change From Baseline at Week 24 in Nasal Polyp Score

NPS: sum of right, left nostril scores, evaluated by nasal endoscopy. For each nostril, NPS was graded based on polyp size from 0 = no polyps to 4 = large polyps causing complete obstruction of inferior nasal cavity; lower score = smaller sized polyps. Total NPS: sum of right and left nostril scores, ranges from 0 (no polyps) to 8 (large polyps), higher score = more severe disease. NPS was assessed by centralized, blinded, independent review of the nasal endoscopy video recordings. LS means and SE were obtained from ANCOVA model described in Statistical Analysis Overview. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.

Time frame: Baseline, Week 24

Population: Analysis was performed on ITT population. Here, 'overall number of participants analyzed' = participants evaluable for this outcome measure. Data for this outcome measure was planned to be analyzed for the combined population of participants who received Dupilumab.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 24 in Nasal Polyp Score0.10 score on a scaleStandard Error 0.14
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 24 in Nasal Polyp Score-1.71 score on a scaleStandard Error 0.11
Comparison: Data was analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates. Statistical inference obtained from all imputed data was combined using Rubin's rule.p-value: <0.000195% CI: [-2.1, -1.51]ANCOVA
Secondary

Changed From Baseline at Week 24 in Forced Expiratory Volume in 1 Second (FEV1) for Participants With Asthma

FEV1 was the volume of air exhaled in the first second of a forced expiration as measured by spirometer. Data was analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment group, prior surgery history, and regions as covariates. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.

Time frame: Baseline, Week 24

Population: Analysis was performed on a subset of participants which included all randomized participants with asthma and had available data for this outcome measure. Data for this outcome measure was planned to be analyzed for the combined population of participants who received Dupilumab.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChanged From Baseline at Week 24 in Forced Expiratory Volume in 1 Second (FEV1) for Participants With Asthma-0.05 litersStandard Error 0.05
Dupilumab 300 mg (24 Weeks Pooled Arm)Changed From Baseline at Week 24 in Forced Expiratory Volume in 1 Second (FEV1) for Participants With Asthma0.17 litersStandard Error 0.04
Secondary

Change From Baseline at Week 24 in 22-item Sino-nasal Outcome Test (SNOT-22) Scores

The SNOT-22 is a validated questionnaire was used to assess the impact of chronic rhinosinusitis phenotype with nasal polyps (CRSwNP) on health-related quality of life (HRQoL). It is a 22 item questionnaire with each item assigned a score ranging from 0 (no problem) to 5 (problem as bad as it can be). The total score may range from 0 (no disease) to 110 (worst disease), lower scores representing better health related quality of life. LS means and SE were obtained from ANCOVA model described in Statistical Analysis Overview. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.

Time frame: Baseline, Week 24

Population: Analysis was performed on ITT population. Here, 'overall number of participants analyzed' = participants evaluable for this outcome measure. Data for this outcome measure was planned to be analyzed for the combined population of participants who received Dupilumab.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 24 in 22-item Sino-nasal Outcome Test (SNOT-22) Scores-10.40 score on a scaleStandard Error 1.61
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 24 in 22-item Sino-nasal Outcome Test (SNOT-22) Scores-27.77 score on a scaleStandard Error 1.26
Comparison: Data were analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates. Statistical inference obtained from all imputed data was combined using Rubin's rule.p-value: <0.000195% CI: [-20.87, -13.85]ANCOVA
Secondary

Change From Baseline at Week 24 in Asthma Control Questionnaire-6 (ACQ-6) for Participants With Asthma

ACQ-6 had 6 questions which assessed the most common asthma symptoms (woken by asthma, symptoms on waking, activity limitation, shortness of breath, wheezing, puffs/inhalations use). Participants were asked to recall how their asthma had been during the previous week and to respond to the symptom questions on a 7-point scale ranged from 0 = no impairment to 6 = maximum impairment. The ACQ-6 score was the mean of the scores of all 6 questions and therefore, ranged from 0 (totally controlled) to 6 (severely uncontrolled), with higher scores indicated lower asthma control. Data were analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment, asthma status, prior surgery history, and regions as covariates. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.

Time frame: Baseline, Week 24

Population: Analysis was performed on a subset of participants which included all randomized participants with asthma and had available data for this outcome measure. Data for this outcome measure was planned to be analyzed for the combined population of participants who received Dupilumab.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 24 in Asthma Control Questionnaire-6 (ACQ-6) for Participants With Asthma0.08 score on a scaleStandard Error 0.09
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 24 in Asthma Control Questionnaire-6 (ACQ-6) for Participants With Asthma-0.78 score on a scaleStandard Error 0.07
Secondary

Change From Baseline at Week 24 in European Quality of Life 5 Dimension Scale (EQ-5D) Visual Analog Scale Score

The EQ-5D was a standardized HRQoL questionnaire consisting of EQ-5D descriptive system and EQ VAS. The EQ-5D descriptive system comprised of 5 dimensions: mobility, selfcare, usual activities, pain/discomfort and anxiety/depression. Each dimension had 5 levels: no problems, slight problems, moderate problems, severe problems, and extreme problems. EQ VAS recorded the participant's self-rated health on a vertical VAS that allowed them to indicate their health state that can range from 0 (worst imaginable) to 100 (best imaginable). All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.

Time frame: Baseline, Week 24

Population: Analysis was performed on ITT population. Here, 'overall number of participants analyzed' = participants evaluable for this outcome measure. Data for this outcome measure was planned to be analyzed for the combined population of participants who received Dupilumab.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 24 in European Quality of Life 5 Dimension Scale (EQ-5D) Visual Analog Scale Score3.91 score on a scaleStandard Error 1.5
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 24 in European Quality of Life 5 Dimension Scale (EQ-5D) Visual Analog Scale Score10.83 score on a scaleStandard Error 1.16
Secondary

Change From Baseline at Week 24 in Nasal Congestion/Obstruction Symptom Severity Score: Subgroup of Participants With Asthma

NC symptom severity was assessed by the participants on a daily basis from Visit 1 and throughout the study using an e-diary on a scale of 0 to 3, where 0 = no symptoms, 1 = mild symptoms, 2 = moderate symptoms and 3 = severe symptoms, with higher scores indicated more severity. Data were analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting ANCOVA model with corresponding baseline, treatment group, prior surgery history, and regions as covariates. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.

Time frame: Baseline, Week 24

Population: Analysis was performed on a subset of participants which included all randomized participants with asthma.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 24 in Nasal Congestion/Obstruction Symptom Severity Score: Subgroup of Participants With Asthma-0.39 score on a scaleStandard Error 0.09
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 24 in Nasal Congestion/Obstruction Symptom Severity Score: Subgroup of Participants With Asthma-1.36 score on a scaleStandard Error 0.07
Secondary

Change From Baseline at Week 24 in Nasal Congestion/Obstruction Symptom Severity Score: Subgroup of Participants With Prior Nasal Polyp Surgery

NC symptom severity was assessed by the participants on a daily basis from Visit 1 and throughout the study using an e-diary on a scale of 0 to 3, where 0 = no symptoms, 1 = mild symptoms, 2 = moderate symptoms and 3 = severe symptoms, with higher scores indicated more severity. Data were analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting ANCOVA model with corresponding baseline, treatment group, prior surgery history, and regions as covariates. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.

Time frame: Baseline, Week 24

Population: Analysis was performed on a subset of participants which included all randomized participants with prior NP surgery history.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 24 in Nasal Congestion/Obstruction Symptom Severity Score: Subgroup of Participants With Prior Nasal Polyp Surgery-0.27 score on a scaleStandard Error 0.1
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 24 in Nasal Congestion/Obstruction Symptom Severity Score: Subgroup of Participants With Prior Nasal Polyp Surgery-1.30 score on a scaleStandard Error 0.08
Secondary

Change From Baseline at Week 24 in Nasal Peak Inspiratory Flow (NPIF)

NPIF evaluation represented a physiologic measure of the air flow through both nasal cavities during forced inspiration expressed in liters per minute. Higher NPIF values were indicative of better nasal air flow. Data was analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.

Time frame: Baseline, Week 24

Population: Analysis was performed on ITT population. Data for this outcome measure was planned to be analyzed for the combined population of participants who received dupilumab.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 24 in Nasal Peak Inspiratory Flow (NPIF)18.65 liters per minuteStandard Error 3.95
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 24 in Nasal Peak Inspiratory Flow (NPIF)55.29 liters per minuteStandard Error 3.08
Secondary

Change From Baseline at Week 24 in Nasal Polyp Score: Subgroup of Participants With Asthma

NPS was the sum of right and left nostril scores, as evaluated by means of nasal endoscopy. For each nostril, NPS was graded from 0 to 4 (0 = no polyps to 4 = large polyps causing complete obstruction of the inferior nasal cavity), with a lower score indicating smaller-sized polyps. Total NPS was the sum of right and left nostril scores and ranges from 0 (no polyp) to 8 (large polyp), with highest score representing more severe disease. NPS was assessed by centralized, blinded, independent review of the nasal endoscopy video recordings. Data were analyzed using a hybrid method of the WOCF and MI. LS mean and SE were obtained from ANCOVA model. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.

Time frame: Baseline, Week 24

Population: Analysis was performed on a subset of participants which included all randomized participants with asthma and had available data for this outcome measure.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 24 in Nasal Polyp Score: Subgroup of Participants With Asthma0.13 score on a scaleStandard Error 0.17
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 24 in Nasal Polyp Score: Subgroup of Participants With Asthma-1.88 score on a scaleStandard Error 0.13
Secondary

Change From Baseline at Week 24 in Nasal Polyp Score: Subgroup of Participants With Prior Nasal Polyp Surgery

NPS was the sum of right and left nostril scores, as evaluated by means of nasal endoscopy. For each nostril, NPS was graded from 0 to 4 (0 = no polyps to 4 = large polyps causing complete obstruction of the inferior nasal cavity), with a lower score indicating smaller-sized polyps. Total NPS was the sum of right and left nostril scores and ranges from 0 (no polyp) to 8 (large polyp), with highest score representing more severe disease. NPS was assessed by centralized, blinded, independent review of the nasal endoscopy video recordings. Data were analyzed using a hybrid method of the WOCF and MI. LS mean and SE were obtained from ANCOVA model. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.

Time frame: Baseline, Week 24

Population: Analysis was performed on a subset of participants which included all randomized participants with prior NP surgery history and had available data for this outcome measure.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 24 in Nasal Polyp Score: Subgroup of Participants With Prior Nasal Polyp Surgery0.22 score on a scaleStandard Error 0.19
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 24 in Nasal Polyp Score: Subgroup of Participants With Prior Nasal Polyp Surgery-1.73 score on a scaleStandard Error 0.15
Secondary

Change From Baseline at Week 24 in Opacification of Sinuses Measured by Lund Mackay (LMK) Score

The LMK scoring system rated each of both the left and right frontal, maxillary, sphenoid, ostiomeatal complex, anterior ethmoid and posterior ethmoid sinuses using following grading: 0 = normal, 1 = partial opacification, 2 = total opacification. The total score was the sum of scores from each side and ranges from 0 (normal) to 24 (more opacified); higher score indicated more severe disease. LS means and SE were obtained from ANCOVA model described in Statistical Analysis Overview. NOTE: For Japan regulatory submission only, this endpoint is not included as a secondary outcome measure and is instead one of the co-primary outcome measures. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.

Time frame: Baseline, Week 24

Population: Analysis was performed on ITT population. Here, 'overall number of participants analyzed' = participants evaluable for this outcome measure.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 24 in Opacification of Sinuses Measured by Lund Mackay (LMK) Score-0.09 score on a scaleStandard Error 0.31
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 24 in Opacification of Sinuses Measured by Lund Mackay (LMK) Score-5.21 score on a scaleStandard Error 0.24
Comparison: Data were analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates. Statistical inference obtained from all imputed data was combined using Rubin's rule.p-value: <0.000195% CI: [-5.8, -4.46]ANCOVA
Secondary

Change From Baseline at Week 24 in Opacification of Sinuses Measured by Lund Mackay Score: Subgroup of Participants With Asthma

The LMK scoring system rated each of both the left and right frontal, maxillary, sphenoid, ostiomeatal complex, anterior ethmoid and posterior ethmoid sinuses using following grading: 0 = normal, 1 = partial opacification, 2 = total opacification. The total score was the sum of scores from each side and ranges from 0 (normal) to 24 (more opacified); higher score indicated more severe disease. Data was analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.

Time frame: Baseline, Week 24

Population: Analysis was performed on a subset of participants which included all randomized participants with asthma and had available data for this outcome measure.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 24 in Opacification of Sinuses Measured by Lund Mackay Score: Subgroup of Participants With Asthma-0.33 score on a scaleStandard Error 0.4
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 24 in Opacification of Sinuses Measured by Lund Mackay Score: Subgroup of Participants With Asthma-5.86 score on a scaleStandard Error 0.31
Secondary

Change From Baseline at Week 24 in Opacification of Sinuses Measured by Lund Mackay Score: Subgroup of Participants With Prior Nasal Polyp Surgery

The LMK scoring system rated each of both the left and right frontal, maxillary, sphenoid, ostiomeatal complex, anterior ethmoid and posterior ethmoid sinuses using following grading: 0 = normal, 1 = partial opacification, 2 = total opacification. The total score was the sum of scores from each side and ranges from 0 (normal) to 24 (more opacified); higher score indicated more severe disease. Data were analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline, treatment group, asthma/NSAID-ERD status, and regions as covariates. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.

Time frame: Baseline, Week 24

Population: Analysis was performed on a subset of participants which included all randomized participants with prior NP surgery history and had available data for this outcome measure.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 24 in Opacification of Sinuses Measured by Lund Mackay Score: Subgroup of Participants With Prior Nasal Polyp Surgery-0.10 score on a scaleStandard Error 0.42
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 24 in Opacification of Sinuses Measured by Lund Mackay Score: Subgroup of Participants With Prior Nasal Polyp Surgery-5.42 score on a scaleStandard Error 0.33
Secondary

Change From Baseline at Week 24 in Rhinorrhea Daily Symptom Score

Rhinorrhea was reported by the participants using a 0 to 3 categorical scale (where 0 = no symptoms, 1 = mild symptoms, 2 = moderate symptoms and 3 = severe symptoms), where higher scores indicated more severe symptoms. Data was analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.

Time frame: Baseline, Week 24

Population: Analysis was performed on ITT population. Data for this outcome measure was planned to be analyzed for the combined population of participants who received Dupilumab.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 24 in Rhinorrhea Daily Symptom Score-0.40 score on a scaleStandard Error 0.07
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 24 in Rhinorrhea Daily Symptom Score-0.99 score on a scaleStandard Error 0.05
Secondary

Change From Baseline at Week 24 in Severity of Decreased/Loss of Smell as Assessed by Participant Daily

The severity of decreased/loss of sense of smell was reported by the participants using a 0 to 3 categorical scale (where 0 = no symptoms, 1 = mild symptoms, 2 = moderate symptoms and 3 = severe symptoms), higher score indicated more severe symptoms. LS means and SE were obtained from ANCOVA model described in Statistical Analysis Overview. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.

Time frame: Baseline, Week 24

Population: Analysis was performed on ITT population. Data for this outcome measure was planned to be analyzed for the combined population of participants who received Dupilumab.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 24 in Severity of Decreased/Loss of Smell as Assessed by Participant Daily-0.23 score on a scaleStandard Error 0.08
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 24 in Severity of Decreased/Loss of Smell as Assessed by Participant Daily-1.21 score on a scaleStandard Error 0.06
Comparison: Data were analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates. Statistical inference obtained from all imputed data was combined using Rubin's rule.p-value: <0.000195% CI: [-1.15, -0.81]ANCOVA
Secondary

Change From Baseline at Week 24 in the University of Pennsylvania Smell Identification Test (UPSIT) Score

The UPSIT was a 40-item test to measure the individual's ability to detect odors. Total score ranges from 0 (anosmia) to 40 (normal sense of smell), lower score indicated severe smell loss. LS means and SE were obtained from ANCOVA model described in Statistical Analysis Overview. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.

Time frame: Baseline, Week 24

Population: Analysis was performed on ITT population. Here, 'overall number of participants analyzed' = participants evaluable for this outcome measure. Data for this outcome measure was planned to be analyzed for the combined population of participants who received Dupilumab.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 24 in the University of Pennsylvania Smell Identification Test (UPSIT) Score-0.81 score on a scaleStandard Error 0.71
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 24 in the University of Pennsylvania Smell Identification Test (UPSIT) Score9.71 score on a scaleStandard Error 0.56
Comparison: Data were analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates. Statistical inference obtained from all imputed data was combined using Rubin's rule.p-value: <0.000195% CI: [8.98, 12.07]ANCOVA
Secondary

Change From Baseline at Week 24 in Total Symptom Score (TSS)

The TSS was the sum of participant-assessed nasal symptom scores for NC/obstruction, decreased/loss of sense of smell, and rhinorrhea (anterior/posterior nasal discharge), each accessed on 0-3 categorical scale (where 0 = no symptoms, 1 = mild symptoms, 2 = moderate symptoms and 3 = severe symptoms). Total score ranged from 0 (no symptoms) to 9 (severe symptoms). Higher score indicated more severe symptoms. LS means and SE were obtained from ANCOVA model described in Statistical Analysis Overview. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.

Time frame: Baseline, Week 24

Population: Analysis was performed on ITT population. Data for this outcome measure was planned to be analyzed for the combined population of participants who received Dupilumab.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 24 in Total Symptom Score (TSS)-1.00 score on a scaleStandard Error 0.2
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 24 in Total Symptom Score (TSS)-3.45 score on a scaleStandard Error 0.15
Comparison: Data were analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates. Statistical inference obtained from all imputed data was combined using Rubin's rule.p-value: <0.000195% CI: [-2.87, -2.02]ANCOVA
Secondary

Change From Baseline at Week 24 in Visual Analogue Scale (VAS) for Rhinosinusitis

The VAS for rhinosinusitis was used to evaluate the total disease severity. The participants were asked to indicate on a 10 centimeters VAS the answer to the question, How troublesome are your symptoms of your rhinosinusitis? The range of the VAS was from 0 (not troublesome) to 10 (worse thinkable troublesome), where higher score indicated worse thinkable troublesome. Data was analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates. All participants randomized to receive Dupilumab had been on 300 mg q2w regimen until Week 24 and analyzed as a pooled population for Week 24 assessments.

Time frame: Baseline, Week 24

Population: Analysis was performed on ITT population. Here, 'overall number of participants analyzed' = participants evaluable for this outcome measure. Data for this outcome measure was planned to be analyzed for the combined population of participants who received Dupilumab.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 24 in Visual Analogue Scale (VAS) for Rhinosinusitis-1.39 centimetersStandard Error 0.24
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 24 in Visual Analogue Scale (VAS) for Rhinosinusitis-4.32 centimetersStandard Error 0.19
Secondary

Change From Baseline at Week 52 in 22-item Sino-nasal Outcome Test Scores

The SNOT-22 is a validated questionnaire that was used to assess the impact of CRSwNP on HRQoL. It is a 22 item questionnaire with each item assigned a score ranging from 0 (no problem) to 5 (problem as bad as it can be). The total score may range from 0 (no disease) to 110 (worst disease), lower scores representing better health related quality of life. LS means and SE were obtained from ANCOVA model described in Statistical Analysis Overview.

Time frame: Baseline, Week 52

Population: Analysis was performed on ITT population. Here, 'overall number of participants analyzed' = participants evaluable for this outcome measure.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 52 in 22-item Sino-nasal Outcome Test Scores-9.06 score on a scaleStandard Error 1.61
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 52 in 22-item Sino-nasal Outcome Test Scores-30.42 score on a scaleStandard Error 1.65
Dupilumab 300 mg q2wChange From Baseline at Week 52 in 22-item Sino-nasal Outcome Test Scores-29.79 score on a scaleStandard Error 1.64
Comparison: Data were analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates. Statistical inference obtained from all imputed data was combined using Rubin's rule.p-value: <0.000195% CI: [-25.45, -17.27]ANCOVA
Comparison: Data were analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates. Statistical inference obtained from all imputed data was combined using Rubin's rule.p-value: <0.000195% CI: [-24.81, -16.65]ANCOVA
Secondary

Change From Baseline at Week 52 in Asthma Control Questionnaire-6 for Participants With Asthma

ACQ-6 had 6 questions which assessed the most common asthma symptoms (woken by asthma, symptoms on waking, activity limitation, shortness of breath, wheezing, puffs/inhalations use). Participants were asked to recall how their asthma had been during the previous week and to respond to the symptom questions on a 7-point scale ranged from 0 = no impairment to 6 = maximum impairment. The ACQ-6 score was the mean of the scores of all 6 questions and therefore, ranged from 0 (totally controlled) to 6 (severely uncontrolled), with higher scores indicated lower asthma control. Data were analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment, asthma status, prior surgery history, and regions as covariates.

Time frame: Baseline, Week 52

Population: Analysis was performed on a subset of participants which included all randomized participants with Asthma and had available data for this outcome measure.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 52 in Asthma Control Questionnaire-6 for Participants With Asthma0.12 score on a scaleStandard Error 0.1
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 52 in Asthma Control Questionnaire-6 for Participants With Asthma-0.76 score on a scaleStandard Error 0.1
Dupilumab 300 mg q2wChange From Baseline at Week 52 in Asthma Control Questionnaire-6 for Participants With Asthma-0.83 score on a scaleStandard Error 0.1
Secondary

Change From Baseline at Week 52 in European Quality of Life 5 Dimension Scale Visual Analog Scale Score

The EQ-5D was a standardized HRQoL questionnaire consisting of EQ-5D descriptive system and EQ VAS. The EQ-5D descriptive system comprised of 5 dimensions: mobility, selfcare, usual activities, pain/discomfort and anxiety/depression. Each dimension had 5 levels: no problems, slight problems, moderate problems, severe problems, and extreme problems. EQ VAS recorded the participant's self-rated health on a vertical VAS that allowed them to indicate their health state that can range from 0 (worst imaginable) to 100 (best imaginable).

Time frame: Baseline, Week 52

Population: Analysis was performed on ITT population. Here, 'overall number of participants analyzed' = participants evaluable for this outcome measure.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 52 in European Quality of Life 5 Dimension Scale Visual Analog Scale Score1.38 score on a scaleStandard Error 1.6
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 52 in European Quality of Life 5 Dimension Scale Visual Analog Scale Score11.98 score on a scaleStandard Error 1.63
Dupilumab 300 mg q2wChange From Baseline at Week 52 in European Quality of Life 5 Dimension Scale Visual Analog Scale Score13.14 score on a scaleStandard Error 1.62
Secondary

Change From Baseline at Week 52 in Forced Expiratory Volume in 1 Second for Participants With Asthma

FEV1 was the volume of air exhaled in the first second of a forced expiration as measured by spirometer. Data was analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment group, prior surgery history, and regions as covariates.

Time frame: Baseline, Week 52

Population: Analysis was performed on a subset of participants which included all randomized participants with asthma and had available data for this outcome measure.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 52 in Forced Expiratory Volume in 1 Second for Participants With Asthma-0.18 litersStandard Error 0.05
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 52 in Forced Expiratory Volume in 1 Second for Participants With Asthma0.10 litersStandard Error 0.05
Dupilumab 300 mg q2wChange From Baseline at Week 52 in Forced Expiratory Volume in 1 Second for Participants With Asthma0.06 litersStandard Error 0.05
Secondary

Change From Baseline at Week 52 in Nasal Congestion/Obstruction Symptom Severity Score

NC symptom severity was assessed by the participants on a daily basis from Visit 1 and throughout the study using an e-diary on a scale of 0 to 3, where 0 = no symptoms, 1 = mild symptoms, 2 = moderate symptoms and 3 = severe symptoms, with higher scores indicated more severity. LS means and SE were obtained from ANCOVA model described in Statistical Analysis Overview.

Time frame: Baseline, Week 52

Population: Analysis was performed on ITT population.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 52 in Nasal Congestion/Obstruction Symptom Severity Score-0.37 score on a scaleStandard Error 0.08
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 52 in Nasal Congestion/Obstruction Symptom Severity Score-1.48 score on a scaleStandard Error 0.08
Dupilumab 300 mg q2wChange From Baseline at Week 52 in Nasal Congestion/Obstruction Symptom Severity Score-1.36 score on a scaleStandard Error 0.07
Comparison: Data were analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates. Statistical inference obtained from all imputed data was combined using Rubin's rule.p-value: <0.000195% CI: [-1.3, -0.92]ANCOVA
Comparison: Data were analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates. Statistical inference obtained from all imputed data was combined using Rubin's rule.p-value: <0.000195% CI: [-1.18, -0.8]ANCOVA
Secondary

Change From Baseline at Week 52 in Nasal Congestion/Obstruction Symptom Severity Score: Subgroup of Participants With Asthma

NC symptom severity was assessed by the participants on a daily basis from Visit 1 and throughout the study using an e-diary on a scale of 0 to 3, where 0 = no symptoms, 1 = mild symptoms, 2 = moderate symptoms and 3 = severe symptoms, with higher scores indicated more severity. Data were analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting ANCOVA model with corresponding baseline, treatment group, prior surgery history, and regions as covariates.

Time frame: Baseline, Week 52

Population: Analysis was performed on a subset of participants which included all randomized participants with asthma.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 52 in Nasal Congestion/Obstruction Symptom Severity Score: Subgroup of Participants With Asthma-0.34 score on a scaleStandard Error 0.09
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 52 in Nasal Congestion/Obstruction Symptom Severity Score: Subgroup of Participants With Asthma-1.51 score on a scaleStandard Error 0.09
Dupilumab 300 mg q2wChange From Baseline at Week 52 in Nasal Congestion/Obstruction Symptom Severity Score: Subgroup of Participants With Asthma-1.44 score on a scaleStandard Error 0.09
Secondary

Change From Baseline at Week 52 in Nasal Congestion/Obstruction Symptom Severity Score: Subgroup of Participants With Prior Nasal Polyp Surgery

NC symptom severity was assessed by the participants on a daily basis from Visit 1 and throughout the study using an e-diary on a scale of 0 to 3, where 0 = no symptoms, 1 = mild symptoms, 2 = moderate symptoms and 3 = severe symptoms, with higher scores indicated more severity. Data were analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline, treatment group, asthma/NSAID-ERD status, and regions as covariates.

Time frame: Baseline, Week 52

Population: Analysis was performed on a subset of participants which included all randomized participants with prior NP surgery history.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 52 in Nasal Congestion/Obstruction Symptom Severity Score: Subgroup of Participants With Prior Nasal Polyp Surgery-0.25 score on a scaleStandard Error 0.1
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 52 in Nasal Congestion/Obstruction Symptom Severity Score: Subgroup of Participants With Prior Nasal Polyp Surgery-1.54 score on a scaleStandard Error 0.1
Dupilumab 300 mg q2wChange From Baseline at Week 52 in Nasal Congestion/Obstruction Symptom Severity Score: Subgroup of Participants With Prior Nasal Polyp Surgery-1.35 score on a scaleStandard Error 0.09
Secondary

Change From Baseline at Week 52 in Nasal Polyp Score

NPS was the sum of right and left nostril scores, as evaluated by means of nasal endoscopy. For each nostril, NPS was graded based on polyp size from 0 to 4 (0 = no polyps to 4 = large polyps causing complete obstruction of the inferior nasal cavity), with a lower score indicating smaller-sized polyps. Total NPS was the sum of right and left nostril scores and ranges from 0 (no polyp) to 8 (large polyp), with highest score representing more severe disease. NPS was assessed by centralized, blinded, independent review of the nasal endoscopy video recordings. Data were analyzed using a hybrid method of the WOCF and MI. LS means and SE were obtained from ANCOVA model described in Statistical Analysis Overview.

Time frame: Baseline, Week 52

Population: Analysis was performed on ITT population. Here, overall number of participants analyzed= participants evaluable for this outcome measure.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 52 in Nasal Polyp Score0.16 score on a scaleStandard Error 0.15
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 52 in Nasal Polyp Score-2.05 score on a scaleStandard Error 0.15
Dupilumab 300 mg q2wChange From Baseline at Week 52 in Nasal Polyp Score-2.24 score on a scaleStandard Error 0.15
Comparison: Data were analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates. Statistical inference obtained from all imputed data was combined using Rubin's rule.p-value: <0.000195% CI: [-2.59, -1.83]ANCOVA
Comparison: Data were analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates. Statistical inference obtained from all imputed data was combined using Rubin's rule.p-value: <0.000195% CI: [-2.78, -2.03]ANCOVA
Secondary

Change From Baseline at Week 52 in Nasal Polyp Score: Subgroup of Participants With Asthma

NPS was the sum of right and left nostril scores, as evaluated by means of nasal endoscopy. For each nostril, NPS was graded from 0 to 4 (0 = no polyps to 4 = large polyps causing complete obstruction of the inferior nasal cavity), with a lower score indicating smaller-sized polyps. Total NPS was the sum of right and left nostril scores and ranges from 0 (no polyp) to 8 (large polyp), with highest score representing more severe disease. NPS was assessed by centralized, blinded, independent review of the nasal endoscopy video recordings. Data were analyzed using a hybrid method of the WOCF and MI. LS mean and SE were obtained from ANCOVA model.

Time frame: Baseline, Week 52

Population: Analysis was performed on a subset of participants which included all randomized participants with asthma and had available data for this outcome measure.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 52 in Nasal Polyp Score: Subgroup of Participants With Asthma0.29 score on a scaleStandard Error 0.2
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 52 in Nasal Polyp Score: Subgroup of Participants With Asthma-2.25 score on a scaleStandard Error 0.2
Dupilumab 300 mg q2wChange From Baseline at Week 52 in Nasal Polyp Score: Subgroup of Participants With Asthma-2.34 score on a scaleStandard Error 0.2
Secondary

Change From Baseline at Week 52 in Nasal Polyp Score: Subgroup of Participants With Prior Nasal Polyp Surgery

NPS was the sum of right and left nostril scores, as evaluated by means of nasal endoscopy. For each nostril, NPS was graded from 0 to 4 (0 = no polyps to 4 = large polyps causing complete obstruction of the inferior nasal cavity), with a lower score indicating smaller-sized polyps. Total NPS was the sum of right and left nostril scores and ranges from 0 (no polyp) to 8 (large polyp), with highest score representing more severe disease. NPS was assessed by centralized, blinded, independent review of the nasal endoscopy video recordings. Data were analyzed using a hybrid method of the WOCF and MI. LS mean and SE were obtained from ANCOVA model.

Time frame: Baseline, Week 52

Population: Analysis was performed on a subset of participants which included all randomized participants with prior NP surgery history and had available data for this outcome measure.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 52 in Nasal Polyp Score: Subgroup of Participants With Prior Nasal Polyp Surgery0.21 score on a scaleStandard Error 0.21
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 52 in Nasal Polyp Score: Subgroup of Participants With Prior Nasal Polyp Surgery-2.22 score on a scaleStandard Error 0.22
Dupilumab 300 mg q2wChange From Baseline at Week 52 in Nasal Polyp Score: Subgroup of Participants With Prior Nasal Polyp Surgery-2.56 score on a scaleStandard Error 0.21
Secondary

Change From Baseline at Week 52 in Opacification of Sinuses Measured by Lund-Mackay Score

The LMK scoring system rated each of both the left and right frontal, maxillary, sphenoid, ostiomeatal complex, anterior ethmoid and posterior ethmoid sinuses using following grading: 0 = normal, 1 = partial opacification, 2 = total opacification. The total score was the sum of scores from each side and ranges from 0 (normal) to 24 (more opacified); higher score indicated more severe disease. Data was analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates.

Time frame: Baseline, Week 52

Population: Analysis was performed on ITT population. Here, 'overall number of participants analyzed' = participants evaluable for this outcome measure.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 52 in Opacification of Sinuses Measured by Lund-Mackay Score0.11 score on a scaleStandard Error 0.37
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 52 in Opacification of Sinuses Measured by Lund-Mackay Score-5.60 score on a scaleStandard Error 0.37
Dupilumab 300 mg q2wChange From Baseline at Week 52 in Opacification of Sinuses Measured by Lund-Mackay Score-6.83 score on a scaleStandard Error 0.37
Secondary

Change From Baseline at Week 52 in Opacification of Sinuses Measured by Lund Mackay Score: Subgroup of Participants With Asthma

The LMK scoring system rated each of both the left and right frontal, maxillary, sphenoid, ostiomeatal complex, anterior ethmoid and posterior ethmoid sinuses using following grading: 0 = normal, 1 = partial opacification, 2 = total opacification. The total score was the sum of scores from each side and ranges from 0 (normal) to 24 (more opacified); higher score indicated more severe disease. Data was analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates.

Time frame: Baseline, Week 52

Population: Analysis was performed on a subset of participants which included all randomized participants with asthma and had available data for this outcome measure.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 52 in Opacification of Sinuses Measured by Lund Mackay Score: Subgroup of Participants With Asthma-0.20 score on a scaleStandard Error 0.46
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 52 in Opacification of Sinuses Measured by Lund Mackay Score: Subgroup of Participants With Asthma-6.23 score on a scaleStandard Error 0.45
Dupilumab 300 mg q2wChange From Baseline at Week 52 in Opacification of Sinuses Measured by Lund Mackay Score: Subgroup of Participants With Asthma-7.22 score on a scaleStandard Error 0.47
Secondary

Change From Baseline at Week 52 in Opacification of Sinuses Measured by Lund Mackay Score: Subgroup of Participants With Prior Nasal Polyp Surgery

The LMK scoring system rated each of both the left and right frontal, maxillary, sphenoid, ostiomeatal complex, anterior ethmoid and posterior ethmoid sinuses using following grading: 0 = normal, 1 = partial opacification, 2 = total opacification. The total score was the sum of scores from each side and ranges from 0 (normal) to 24 (more opacified); higher score indicated more severe disease. Data were analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline, treatment group, asthma/NSAID-ERD status, and regions as covariates.

Time frame: Baseline, Week 52

Population: Analysis was performed on a subset of participants which included all randomized participants with prior NP surgery history and had available data for this outcome measure.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 52 in Opacification of Sinuses Measured by Lund Mackay Score: Subgroup of Participants With Prior Nasal Polyp Surgery-0.06 score on a scaleStandard Error 0.5
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 52 in Opacification of Sinuses Measured by Lund Mackay Score: Subgroup of Participants With Prior Nasal Polyp Surgery-6.01 score on a scaleStandard Error 0.5
Dupilumab 300 mg q2wChange From Baseline at Week 52 in Opacification of Sinuses Measured by Lund Mackay Score: Subgroup of Participants With Prior Nasal Polyp Surgery-7.45 score on a scaleStandard Error 0.49
Secondary

Change From Baseline at Week 52 in Rhinorrhea Daily Symptom Score

Rhinorrhea was reported by the participants using a 0 to 3 categorical scale (where 0 = no symptoms, 1 = mild symptoms, 2 = moderate symptoms and 3 = severe symptoms), where higher scores indicated more severe symptoms. Data was analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates.

Time frame: Baseline, Week 52

Population: Analysis was performed on ITT population.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 52 in Rhinorrhea Daily Symptom Score-0.35 score on a scaleStandard Error 0.07
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 52 in Rhinorrhea Daily Symptom Score-1.19 score on a scaleStandard Error 0.07
Dupilumab 300 mg q2wChange From Baseline at Week 52 in Rhinorrhea Daily Symptom Score-1.15 score on a scaleStandard Error 0.07
Secondary

Change From Baseline at Week 52 in Severity of Decreased/Loss of Smell

The severity of decreased/loss of sense of smell was reported by the participants using a 0 to 3 categorical scale (where 0 = no symptoms, 1 = mild symptoms, 2 = moderate symptoms and 3 = severe symptoms), higher score indicated more severe symptoms. Data was analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates.

Time frame: Baseline, Week 52

Population: Analysis was performed on ITT population.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 52 in Severity of Decreased/Loss of Smell-0.18 score on a scaleStandard Error 0.09
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 52 in Severity of Decreased/Loss of Smell-1.49 score on a scaleStandard Error 0.09
Dupilumab 300 mg q2wChange From Baseline at Week 52 in Severity of Decreased/Loss of Smell-1.29 score on a scaleStandard Error 0.08
Secondary

Change From Baseline at Week 52 in the University of Pennsylvania Smell Identification Test Score

The UPSIT was a 40-item test to measure the individual's ability to detect odors. Total score ranges from 0 (anosmia) to 40 (normal sense of smell), lower score indicated severe smell loss. Data was analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates.

Time frame: Baseline, Week 52

Population: Analysis was performed on ITT population. Here, 'overall number of participants analyzed' = participants evaluable for this outcome measure.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 52 in the University of Pennsylvania Smell Identification Test Score-0.78 score on a scaleStandard Error 0.71
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 52 in the University of Pennsylvania Smell Identification Test Score9.99 score on a scaleStandard Error 0.73
Dupilumab 300 mg q2wChange From Baseline at Week 52 in the University of Pennsylvania Smell Identification Test Score9.53 score on a scaleStandard Error 0.72
Secondary

Change From Baseline at Week 52 in Total Symptom Score

The TSS was the sum of participant-assessed nasal symptom scores for NC/obstruction, decreased/loss of sense of smell, and rhinorrhea (anterior/posterior nasal discharge), each accessed on 0-3 categorical scale (where 0 = no symptoms, 1 = mild symptoms, 2 = moderate symptoms and 3 = severe symptoms). Total score ranged from 0 (no symptoms) to 9 (severe symptoms). Higher score indicated more severe symptoms. Data was analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates.

Time frame: Baseline, Week 52

Population: Analysis was performed on ITT population.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 52 in Total Symptom Score-0.93 score on a scaleStandard Error 0.2
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 52 in Total Symptom Score-4.17 score on a scaleStandard Error 0.2
Dupilumab 300 mg q2wChange From Baseline at Week 52 in Total Symptom Score-3.79 score on a scaleStandard Error 0.2
Secondary

Change From Baseline at Week 52 in Visual Analogue Scale for Rhinosinusitis

The VAS for rhinosinusitis was used to evaluate the total disease severity. The participants were asked to indicate on a 10 centimeters VAS the answer to the question, How troublesome are your symptoms of your rhinosinusitis? The range of the VAS was from 0 (not troublesome) to 10 (worse thinkable troublesome), where higher score indicated worse thinkable troublesome. Data was analyzed using a hybrid method of the WOCF and MI. The imputed completed data were analyzed by fitting an ANCOVA model with corresponding baseline value, treatment group, asthma/NSAID-ERD status, prior surgery history, and regions as covariates.

Time frame: Baseline, Week 52

Population: Analysis was performed on ITT population. Here, 'overall number of participants analyzed' = participants evaluable for this outcome measure.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboChange From Baseline at Week 52 in Visual Analogue Scale for Rhinosinusitis-0.93 centimetersStandard Error 0.26
Dupilumab 300 mg (24 Weeks Pooled Arm)Change From Baseline at Week 52 in Visual Analogue Scale for Rhinosinusitis-4.39 centimetersStandard Error 0.26
Dupilumab 300 mg q2wChange From Baseline at Week 52 in Visual Analogue Scale for Rhinosinusitis-4.74 centimetersStandard Error 0.26
Secondary

Functional Dupilumab Concentration in Serum

Time frame: Baseline, Week 2, Week 4, Week 16, Week 24, Week 40, End of treatment (Week 52), End of study (Week 64)

Population: Analysis performed on pharmacokinetics population (PK) which included all participants who received at least 1 dose of IMP with at least 1 evaluable functional dupilumab concentration result. Here, 'number analyzed' = number of participants with available data for each time point. PK data was not collected and assessed for the placebo arm.

ArmMeasureGroupValue (MEAN)Dispersion
PlaceboFunctional Dupilumab Concentration in SerumBaseline0.00 nanogram/milliliterStandard Deviation 0
PlaceboFunctional Dupilumab Concentration in SerumWeek 221545.79 nanogram/milliliterStandard Deviation 9120.36
PlaceboFunctional Dupilumab Concentration in SerumWeek 433760.62 nanogram/milliliterStandard Deviation 16419.72
PlaceboFunctional Dupilumab Concentration in SerumWeek 1670503.07 nanogram/milliliterStandard Deviation 31234.86
PlaceboFunctional Dupilumab Concentration in SerumWeek 2475929.41 nanogram/milliliterStandard Deviation 35466
PlaceboFunctional Dupilumab Concentration in SerumWeek 4021052.06 nanogram/milliliterStandard Deviation 18588.68
PlaceboFunctional Dupilumab Concentration in SerumWeek 5217276.13 nanogram/milliliterStandard Deviation 16353.2
PlaceboFunctional Dupilumab Concentration in SerumWeek 6453.60 nanogram/milliliterStandard Deviation 160.53
Dupilumab 300 mg (24 Weeks Pooled Arm)Functional Dupilumab Concentration in SerumWeek 64851.30 nanogram/milliliterStandard Deviation 2682.21
Dupilumab 300 mg (24 Weeks Pooled Arm)Functional Dupilumab Concentration in SerumBaseline0.00 nanogram/milliliterStandard Deviation 0
Dupilumab 300 mg (24 Weeks Pooled Arm)Functional Dupilumab Concentration in SerumWeek 2479890.06 nanogram/milliliterStandard Deviation 35361.97
Dupilumab 300 mg (24 Weeks Pooled Arm)Functional Dupilumab Concentration in SerumWeek 222285.67 nanogram/milliliterStandard Deviation 8459.01
Dupilumab 300 mg (24 Weeks Pooled Arm)Functional Dupilumab Concentration in SerumWeek 5275872.58 nanogram/milliliterStandard Deviation 34127.85
Dupilumab 300 mg (24 Weeks Pooled Arm)Functional Dupilumab Concentration in SerumWeek 437326.31 nanogram/milliliterStandard Deviation 14226.12
Dupilumab 300 mg (24 Weeks Pooled Arm)Functional Dupilumab Concentration in SerumWeek 4080526.37 nanogram/milliliterStandard Deviation 34048.41
Dupilumab 300 mg (24 Weeks Pooled Arm)Functional Dupilumab Concentration in SerumWeek 1674382.04 nanogram/milliliterStandard Deviation 33118.68
Secondary

Mean Total Systemic Corticosteroids Rescue Dose Prescribed During Treatment Period

SCS included: betamethasone, deflazacort, dexamethasone, dexamethasone sodium phosphate, hydrocortisone, meprednisone, methylprednisolone, methylprednisolone sodium succinate, prednisolone, prednisolone sodium succinate, prednisone, stelamin, triamcinolone, and triamcinolone acetonide. For every participant, the total dose was calculated as (prescribed total daily dose\*duration of SCS use). Then, mean of the total dose of 64 participants (placebo group), 17 participants (dupilumab 300 mg q2w then q4w) and 22 participants (dupilumab 300 mg q2w) was derived.

Time frame: Baseline to Week 52

Population: The analysis was performed on ITT population. Here, overall number of participants analyzed signifies participants evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
PlaceboMean Total Systemic Corticosteroids Rescue Dose Prescribed During Treatment Period547.56 milligramsStandard Deviation 665.4
Dupilumab 300 mg (24 Weeks Pooled Arm)Mean Total Systemic Corticosteroids Rescue Dose Prescribed During Treatment Period282.38 milligramsStandard Deviation 243.15
Dupilumab 300 mg q2wMean Total Systemic Corticosteroids Rescue Dose Prescribed During Treatment Period389.68 milligramsStandard Deviation 502.61
Secondary

Number of Participants With Treatment-emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs) and TEAEs Leading to Treatment Discontinuation

An Adverse Event (AE) was defined as any untoward medical occurrence that did not necessarily have to have a causal relationship with the study treatment. TEAEs were defined as AEs that developed or worsened in grade or became serious during TEAE period which was defined as the period from the time of first dose of drug until 84 days following the last administration of drug. SAE was defined as any untoward medical occurrence that at any dose: results in death, is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect, is a medically important event.

Time frame: Baseline up to 84 days after last dose of study drug (up to 64 weeks)

Population: Analysis was performed on safety population which included all participants who received at least 1 dose or part of a dose of the investigational medicinal product (IMP), analyzed according to the treatment actually received.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
PlaceboNumber of Participants With Treatment-emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs) and TEAEs Leading to Treatment DiscontinuationTEAE leading to treatment discontinuation17 Participants
PlaceboNumber of Participants With Treatment-emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs) and TEAEs Leading to Treatment DiscontinuationAny TEAE138 Participants
PlaceboNumber of Participants With Treatment-emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs) and TEAEs Leading to Treatment DiscontinuationAny TEAE leading to death0 Participants
PlaceboNumber of Participants With Treatment-emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs) and TEAEs Leading to Treatment DiscontinuationAny treatment emergent SAE16 Participants
Dupilumab 300 mg (24 Weeks Pooled Arm)Number of Participants With Treatment-emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs) and TEAEs Leading to Treatment DiscontinuationAny TEAE leading to death1 Participants
Dupilumab 300 mg (24 Weeks Pooled Arm)Number of Participants With Treatment-emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs) and TEAEs Leading to Treatment DiscontinuationTEAE leading to treatment discontinuation2 Participants
Dupilumab 300 mg (24 Weeks Pooled Arm)Number of Participants With Treatment-emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs) and TEAEs Leading to Treatment DiscontinuationAny treatment emergent SAE12 Participants
Dupilumab 300 mg (24 Weeks Pooled Arm)Number of Participants With Treatment-emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs) and TEAEs Leading to Treatment DiscontinuationAny TEAE134 Participants
Dupilumab 300 mg q2wNumber of Participants With Treatment-emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs) and TEAEs Leading to Treatment DiscontinuationTEAE leading to treatment discontinuation6 Participants
Dupilumab 300 mg q2wNumber of Participants With Treatment-emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs) and TEAEs Leading to Treatment DiscontinuationAny treatment emergent SAE8 Participants
Dupilumab 300 mg q2wNumber of Participants With Treatment-emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs) and TEAEs Leading to Treatment DiscontinuationAny TEAE leading to death0 Participants
Dupilumab 300 mg q2wNumber of Participants With Treatment-emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs) and TEAEs Leading to Treatment DiscontinuationAny TEAE125 Participants
Secondary

Number of Participants With Treatment-Emergent And Treatment-Boosted Anti-drug Antibodies Response (ADA)

ADA response were categorized as: treatment emergent and treatment boosted response. 1) Treatment emergent was defined as a positive response in the ADA assay post first dose, when baseline results are negative or missing. 2) Treatment boosted was defined as: an ADA positive response in the assay post first dose that is greater-than or equal to 4-fold over baseline titer levels, when baseline results are positive.

Time frame: Baseline to Week 52

Population: The analysis was performed on ADA population which included participants who received at least 1 dose of IMP with at least one evaluable ADA serum sample that was assayed successfully in the ADA assay (either 'ADA negative' or 'ADA positive') following the first dose of the study medication.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
PlaceboNumber of Participants With Treatment-Emergent And Treatment-Boosted Anti-drug Antibodies Response (ADA)With treatment-emergent ADA6 Participants
PlaceboNumber of Participants With Treatment-Emergent And Treatment-Boosted Anti-drug Antibodies Response (ADA)With treatment-boosted ADA1 Participants
Dupilumab 300 mg (24 Weeks Pooled Arm)Number of Participants With Treatment-Emergent And Treatment-Boosted Anti-drug Antibodies Response (ADA)With treatment-emergent ADA18 Participants
Dupilumab 300 mg (24 Weeks Pooled Arm)Number of Participants With Treatment-Emergent And Treatment-Boosted Anti-drug Antibodies Response (ADA)With treatment-boosted ADA0 Participants
Dupilumab 300 mg q2wNumber of Participants With Treatment-Emergent And Treatment-Boosted Anti-drug Antibodies Response (ADA)With treatment-emergent ADA8 Participants
Dupilumab 300 mg q2wNumber of Participants With Treatment-Emergent And Treatment-Boosted Anti-drug Antibodies Response (ADA)With treatment-boosted ADA0 Participants
Secondary

Rescue Treatment Use: Estimate of Percentage of Participants With Greater Than or Equal to (>=) 1 Event by Week 52 Obtained Using Kaplan-Meier Method

Rescue treatment was defined as usage of systemic corticosteroids (SCS) or NP surgery (actual or planned) during the treatment period. Rescue treatment included: * SCS: betamethasone, deflazacort, dexamethasone, dexamethasone sodium phosphate, hydrocortisone, meprednisone, methylprednisolone, methylprednisolone sodium succinate, prednisolone, prednisolone sodium succinate, prednisone, stelamin, triamcinolone, and triamcinolone acetonide. * Sino-nasal surgery for nasal polyps when there was worsening of signs and/or symptoms during the study. Estimate of percentage of participants with event by Week 52 was obtained using Kaplan-Meier method.

Time frame: Baseline up to 52 weeks

Population: Analysis was performed on ITT population. Data for this outcome measure was planned to be collected and analyzed for the pooled population of participants receiving Dupilumab.

ArmMeasureGroupValue (NUMBER)
PlaceboRescue Treatment Use: Estimate of Percentage of Participants With Greater Than or Equal to (>=) 1 Event by Week 52 Obtained Using Kaplan-Meier MethodSCS treatment42.5 percentage of participants with event
PlaceboRescue Treatment Use: Estimate of Percentage of Participants With Greater Than or Equal to (>=) 1 Event by Week 52 Obtained Using Kaplan-Meier MethodNP surgery28.3 percentage of participants with event
Dupilumab 300 mg (24 Weeks Pooled Arm)Rescue Treatment Use: Estimate of Percentage of Participants With Greater Than or Equal to (>=) 1 Event by Week 52 Obtained Using Kaplan-Meier MethodSCS treatment13.1 percentage of participants with event
Dupilumab 300 mg (24 Weeks Pooled Arm)Rescue Treatment Use: Estimate of Percentage of Participants With Greater Than or Equal to (>=) 1 Event by Week 52 Obtained Using Kaplan-Meier MethodNP surgery5.5 percentage of participants with event
Secondary

Total Systemic Corticosteroids Rescue Intake Duration: Average Duration Per Participant

Rescue treatment was defined as usage of SCS or NP surgery (actual or planned) during the treatment period. SCS Rescue intake duration was defined as the duration (in days) from start of SCS rescue medication till the end of SCS rescue treatment.

Time frame: Baseline to Week 52

Population: Analysis was performed on ITT population. Here, 'overall number of participants analyzed' = participants evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
PlaceboTotal Systemic Corticosteroids Rescue Intake Duration: Average Duration Per Participant19.58 daysStandard Deviation 17.67
Dupilumab 300 mg (24 Weeks Pooled Arm)Total Systemic Corticosteroids Rescue Intake Duration: Average Duration Per Participant10.71 daysStandard Deviation 9
Dupilumab 300 mg q2wTotal Systemic Corticosteroids Rescue Intake Duration: Average Duration Per Participant23.23 daysStandard Deviation 55.23

Source: ClinicalTrials.gov · Data processed: Mar 4, 2026