CClinicalTrials.gg
CompletedNCT04684524AIMSUpdated Sep 3, 2026Results posted

Dupilumab in Allergic Fungal Rhinosinusitis (AFRS)

A Phase 3 interventional study of Dupilumab SAR231893 and Placebo in Allergic Fungal Rhinosinusitis, sponsored by Sanofi. Completed at 47 sites in 9 countries. Open to participants aged 6 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-09-03.

Sponsored by Sanofi · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
62
Allocation
Randomized
Ages
6 Years and older
Sex
All
01

Study summary

Primary Objective:

  • To evaluate the efficacy of treatment with dupilumab to reduce sinus opacification in a population with allergic fungal rhinosinusitis (AFRS)

Secondary Objectives:

  • To evaluate the efficacy of treatment with dupilumab to reduce sinus opacification in a population with allergic fungal rhinosinusitis (AFRS) at Week 24
  • To assess the efficacy of dupilumab to reduce the need for rescue treatments
  • To evaluate the efficacy of treatment with dupilumab in improving symptoms in AFRS
  • To evaluate the efficacy of dupilumab to reduce nasal polyp formation in participants with AFRS
  • To evaluate the efficacy of dupilumab in improving overall symptom severity and quality of life in AFRS
  • To evaluate the efficacy of dupilumab in improving sense of smell in participants with AFRS
  • To explore the effect of dupilumab as assessed by three-Dimensional CT volumetric measurement of the paranasal sinuses
  • To evaluate the safety and tolerability of dupilumab when administered to participants with AFRS
  • To evaluate the pharmacokinetics (PK) of dupilumab in participants with AFRS
  • To characterize the effect of dupilumab on total IgE and specific IgE
  • To assess immunogenicity to dupilumab in participants with AFRS
Read the detailed description

The duration of study for each participant will include 2-4 weeks of screening period (2 additional weeks could be allowed), 52 weeks of randomized investigational medicinal product (IMP) intervention period and 12 weeks of follow-up period.

02

Conditions studied

  • Allergic Fungal Rhinosinusitis
03

In context

Lead sponsor

Sanofi is the lead sponsor of 1,508 studies on the registry; 90 are open to participants now.

Of its 198 completed or terminated interventional studies of FDA-regulated products, 118 (60%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
6 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

Participant must be at least 6 years of age (or the minimum legal age for adolescents in the country of the investigational site) at the time of signing the informed consent.

Participants with the diagnosis of AFRS adapted from criteria by Bent and Kuhn (meeting all):

  • IgE mediated inflammatory response to fungal hyphae (specific IgE serology or skin test) Evidence of sensitization to fungus by skin testing (at screening or documented historical positive skin test in the previous 12 months), or positive fungal-specific IgE in serum at screening.
  • Nasal polyposis confirmed by nasal endoscopy at screening.
  • Characteristic CT signs to be performed during screening period and can include any of the below signs as assessed by central reader:

    • hyperdensities
    • bony demineralization
    • bone erosion of sinus
  • Eosinophilic mucin/mucus identified within 5 years prior to screening or at screening with or without positive fungal stain

AFRS patients with the following:

  • An endoscopic NPS of at least 2 out of 4 for unilateral polyps or 3 out of 8 for bilateral polyps at Visit 1 (central reading) and Visit 2 (local reading) and,
  • Sinus opacification in CT scan with an LMK score of 9 for patients with unilateral polyps or 12 for patients with bilateral polyps during screening period and,

Body weight ≥15 kg

Exclusion criteria

Exclusion Criteria:

  • Patients with nasal conditions/concomitant nasal diseases making them non-evaluable at Visit 1 or for the primary efficacy
  • Nasal cavity malignant tumor and benign tumors.
  • Known of fungal invasion into sinus tissue.
  • Severe concomitant illness(es) that, in the investigator's judgment, would adversely affect the patient's participation in the study
  • Active tuberculosis or non-tuberculous mycobacterial infection, or a history of incompletely treated tuberculosis unless documented adequately treated.
  • Diagnosed active endoparasitic infections; suspected or high risk of endoparasitic infection
  • Known or suspected immunodeficiency
  • Active chronic or acute infection requiring treatment with systemic antibiotics, antivirals, or antifungals within 2 weeks before the Screening Visit 1 or during the screening period.
  • History of systemic hypersensitivity or anaphylaxis to dupilumab or any of its excipients.
  • Treatment with commercially available dupilumab within 12 months, participation in prior dupilumab clinical trial, or discontinued dupilumab use due to adverse event.
  • Patients who are treated with intranasal corticosteroid drops; intranasal steroid emitting devices/stents; nasal spray using exhalation delivery system, such as Xhance™, during screening period.
  • Patients who are on intranasal corticosteroids (INCS) spray unless they have received stable dose for at least 4 weeks prior to Visit 1.
  • Patients who have undergone sinus intranasal surgery (including polypectomy) within 6 months prior to Visit 1.
  • Patients who have taken:

    • Biologic therapy/systemic immunosuppressant to treat inflammatory disease or autoimmune disease within 5 half-lives prior to Visit 1
    • Any investigational mAb within 5 half-lives prior to Visit 1
    • Anti-IgE therapy (omalizumab) within 4 months prior to Visit 1. - Treatment with a live (attenuated) vaccine within 4 weeks prior to Visit 1
  • Leukotriene antagonists/modifiers unless patient is on a continuous treatment for at least 30 days prior to Visit 1.
  • Initiation of allergen immunotherapy within 3 months prior to Visit 1 or a plan to begin therapy or change its dose during the screening or treatment period. - Patients received SCS during screening period. - Either intravenous immunoglobulin therapy and/or plasmapheresis within 30 days prior to Screening Visit (Visit 1).

The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
62 participants (actual)

Study arms

  • Experimental
    Dupilumab

    Dupilumab administered every 2 or 4 weeks based on weights

    Drug: Dupilumab SAR231893

  • Placebo comparator
    Matching placebo

    Placebo administered every 2 or 4 weeks based on weights

    Drug: Placebo

Interventions

  • DrugDupilumab SAR231893

    Pharmaceutical form:Injection solution Route of administration: Subcutaneous

  • DrugPlacebo

    Pharmaceutical form:Injection solution Route of administration: Subcutaneous

06

What researchers measure

Primary outcomes

  1. Change From Baseline to Week 52 in Opacification of Sinuses Assessed by CT Scan Using the LMK Score

    The LMK score is used to quantify the degree of opacification of each sinus on CT scan. The CT scan LMK staging system represents the most widely established method of sinus CT scoring. The LMK total score is based on assessment of the CT scan findings for each sinus area (maxillary, anterior ethmoid, posterior ethmoid, sphenoid, and frontal sinus plus the osteomeatal complex on each side). The extent of sinus opacification is rated on a 3-point scale ranging from 0 = normal to 2 = total opacification. In addition, the osteomeatal complex is graded as 0 = not occluded or 2 = occluded. The maximum score is 12 per side; total score ranges from 0 (normal) to 24 (more opacified) corresponding to the sum of all sinuses and the osteomeatal complexes bilaterally. Higher score indicate worse outcome; a negative change from baseline indicate improvement. Baseline was defined as the last available value before the first dose of study drug.

    Time frame: Baseline (Day 1) and Week 52

Secondary outcomes

  1. Change From Baseline to Week 24 in Monthly Average Nasal Congestion/Obstruction Score From the Nasal Symptom Diary

    The nasal symptom diary is designed to assess the severity of chronic rhinosinusitis (CRS) nasal symptoms on daily basis. Score range: 0 = no symptoms, 1 = mild symptoms (symptoms clearly present, but minimal awareness and easily tolerated), 2= moderate symptoms (definite awareness of symptoms that is bothersome but tolerable) and 3 = severe symptoms (symptoms that are hard to tolerate, cause interference with activities or daily living). Higher scores denote greater symptom severity; a negative change from baseline indicate improvement. Baseline was defined as the average of the scores in the 7 days prior to the first dose of study drug.

    Time frame: Baseline (Day -7 to Day -1) and Week 24

  2. Change From Baseline to Week 24 in Endoscopy Nasal Polyp Score (NPS)

    The bilateral endoscopy NPS is determined by the clinician who assesses nasal polyp formation. Polyps on each side of the nose are graded based on polyp size; scores: 0 = no polyps; 1 = small polyps in the middle meatus not reaching below the inferior border of the middle turbinate; 2 = polyps reaching below the lower border of the middle turbinate; 3 = large polyps reaching the lower border of the inferior turbinate or polyps medial to the middle turbinate and 4 = large polyps causing complete obstruction. The total score is the sum of the right and left nostrils, ranging from 0 (no obstruction) to 8 (complete obstruction); higher score indicating worse outcome; a negative change from baseline indicate improvement. Baseline was defined as the last available value before the first dose of study drug.

    Time frame: Baseline (Day 1) and Week 24

  3. Change From Baseline to Week 24 in Opacification of Sinuses Assessed by CT Scan Using the LMK Score

    The LMK score is used to quantify the degree of opacification of each sinus on CT scan. The CT scan LMK staging system represents the most widely established method of sinus CT scoring. The LMK total score is based on assessment of the CT scan findings for each sinus area (maxillary, anterior ethmoid, posterior ethmoid, sphenoid, and frontal sinus plus the osteomeatal complex on each side). The extent of sinus opacification is rated on a 3-point scale ranging from 0 = normal to 2 = total opacification. In addition, the osteomeatal complex is graded as 0 = not occluded or 2 = occluded. The maximum score is 12 per side; total score ranges from 0 (normal) to 24 (more opacified) corresponding to the sum of all sinuses and the osteomeatal complexes bilaterally. Higher score indicate worse outcome; a negative change from baseline indicate improvement. Baseline was defined as the last available value before the first dose of study drug.

    Time frame: Baseline (Day 1) and Week 24

  4. Change From Baseline to Week 24 in Monthly Average Total Symptom Score (TSS) Derived From the Nasal Symptom Diary

    The nasal symptom diary is designed to assess the severity of CRS nasal symptoms on daily basis. The TSS is a composite score consisting of the sum of the following symptoms assessed daily in the morning: nasal congestion/obstruction, decreased/loss of sense of smell, rhinorrhea (average of anterior/posterior nasal discharge). Each of the individual items were scored from 0 = no symptoms to 3 = severe symptoms. TSS is the sum of individual items and ranges between 0 = no symptoms and 9 = severe symptoms. Higher scores on the TSS indicate greater symptom severity; a negative change from baseline indicate improvement. Baseline was defined as the average of the scores in the 7 days prior to the first dose of study drug.

    Time frame: Baseline (Day -7 to Day -1) and Week 24

  5. Change From Baseline to Week 24 in University of Pennsylvania Smell Identification Test (UPSIT)

    The UPSIT (UPSIT 40 odorant test) is a rapid and easy-to-administer method to quantitatively assess human olfactory function. The test consists of 4 booklets, each containing 10 odorants with 1 odorant per page. Above each odorant strip is a multiple-choice question with 4 alternative words to describe the odor and the participant is asked to indicate which word best describes the odor. Each smell has a possible of 4 answers with one being correct, therefore the potential total scores can range from 0 (worst possible score) to 40 (best possible score), with 1 point being awarded for each correctly identified odor. Scores of \<=18 were classified as anosmia, 19 to 25 as severe microsmia, 26 to 30 as moderate microsmia, 31 to 34 as mild microsmia, and 35 to 40 as normal smell appreciation. Higher scores indicated better olfactory function; i.e. better sense of smell. Baseline was defined as the last available value before the first dose of study drug.

    Time frame: Baseline (Day 1) and Week 24

  6. Change From Baseline to Week 24 in Monthly Average Decreased/Loss of Smell Using the Nasal Symptom Diary

    The nasal symptom diary is designed to assess the severity of CRS nasal symptoms on daily basis. Decreased/loss of smell is scored as: 0 = no symptoms, 1 = mild symptoms (symptoms clearly present, but minimal awareness and easily tolerated), 2= moderate symptoms (definite awareness of symptoms that is bothersome but tolerable) and 3 = severe symptoms (symptoms that are hard to tolerate, cause interference with activities or daily living). Higher scores denote greater symptom severity; a negative change from baseline indicate improvement. Baseline was defined as the average of the scores in the 7 days prior to the first dose of study drug.

    Time frame: Baseline (Day -7 to Day -1) and Week 24

  7. Change From Baseline to Week 52 in Endoscopy NPS

    The bilateral endoscopy NPS is determined by the clinician who assesses nasal polyp formation. Polyps on each side of the nose are graded based on polyp size; scores: 0 = no polyps; 1 = small polyps in the middle meatus not reaching below the inferior border of the middle turbinate; 2 = polyps reaching below the lower border of the middle turbinate; 3 = large polyps reaching the lower border of the inferior turbinate or polyps medial to the middle turbinate and 4 = large polyps causing complete obstruction. The total score is the sum of the right and left nostrils, ranging from 0 (no obstruction) to 8 (complete obstruction); higher score indicating worse outcome; a negative change from baseline indicate improvement. Baseline was defined as the last available value before the first dose of study drug.

    Time frame: Baseline (Day 1) and Week 52

  8. Change From Baseline to Week 52 in Monthly Average Nasal Congestion/Obstruction Score From the Nasal Symptom Diary

    The nasal symptom diary is designed to assess the severity of CRS nasal symptoms on daily basis. Score range: 0 = no symptoms, 1 = mild symptoms (symptoms clearly present, but minimal awareness and easily tolerated), 2= moderate symptoms (definite awareness of symptoms that is bothersome but tolerable) and 3 = severe symptoms (symptoms that are hard to tolerate, cause interference with activities or daily living). Higher scores denote greater symptom severity; a negative change from baseline indicate improvement. Baseline was defined as the average of the scores in the 7 days prior to the first dose of study drug.

    Time frame: Baseline (Day -7 to Day -1) and Week 52

  9. Change From Baseline to Week 52 in 22-item Sino-Nasal Outcome Test (SNOT-22) Total Score

    The SNOT-22 is a validated questionnaire designed to assess the impact of CRS on participants health-related quality of life (HRQoL) and has 22 items covering symptoms, social/emotional impact, productivity, and sleep consequences of CRS. The recall period is past 2 weeks. Each item is rated on a 6-point Likert scale; response options ranging from 0 = no problem to 5 = problem as bad as it can be. A global score ranging from 0 (no impact) to 110 (severe impact) is calculated by summing the responses to all items; higher score indicates greater rhinosinusitis-related health burden; a negative change from baseline indicate improvement. Baseline was defined as the last available value before the first dose of study drug.

    Time frame: Baseline (Day 1) and Week 52

  10. Change From Baseline to Week 52 in Three-dimensional CT Total Volume Occupied by Disease in All Sinuses

    This method is used to calculate the percent occupied by disease. It is performed at locations including ethmoid sinus, frontal sinus, maxillary sinus, and sphenoid sinus. The total volume occupied by disease in all sinuses is reported here. For the analysis, central reading at baseline was used for comparison with Week 52 reading. It is graded on a scale of 0-100%; a higher score is worse and indicates greater volume occupied by disease. A negative change from baseline indicated improvement. Baseline was defined as the last available value before the first dose of study drug.

    Time frame: Baseline (Day 1) and Week 52

  11. Percentage of Participants Who Received Systemic Corticosteroids (SCS) and/or Underwent or Planned to Undergo Surgery for Allergic Fungal Rhinosinusitis (AFRS) at Week 52

    SCS use was defined as the use of SCS for rescue treatment of AFRS or for another reason and was captured by the Investigator (or designee) in electronic case report form (eCRF). Participants who underwent or planned to undergo surgery for AFRS were also recorded in eCRF.

    Time frame: Week 52

  12. Change From Baseline to Week 24 in SNOT-22 Total Score

    The SNOT-22 is a validated questionnaire designed to assess the impact of CRS on participants HRQoL and has 22 items covering symptoms, social/emotional impact, productivity, and sleep consequences of CRS. The recall period is past 2 weeks. Each item is rated on a 6-point Likert scale; response options ranging from 0 = no problem to 5 = problem as bad as it can be. A global score ranging from 0 (no impact) to 110 (severe impact) is calculated by summing the responses to all items; higher score indicates greater rhinosinusitis-related health burden; a negative change from baseline indicate improvement. Baseline was defined as the last available value before the first dose of study drug.

    Time frame: Baseline (Day 1) and Week 24

  13. Percent Change From Baseline in Serum Total Immunoglobulin-E (IgE) to Week 52

    Blood samples were collected at specified timepoints for the assessment of IgE. Total IgE was measured with a quantitative method approved for diagnostic testing; a negative change from baseline indicate improvement. Baseline was defined as the last available value before the first dose of study drug.

    Time frame: Baseline (Day 1) and Week 52

  14. Change From Baseline to Weeks 24 and 52 in the Monthly Average Rhinorrhea Score From the Nasal Symptom Diary

    The nasal symptom diary is designed to assess the severity of CRS nasal symptoms on daily basis. Score range: 0 = no symptoms, 1 = mild symptoms (symptoms clearly present, but minimal awareness and easily tolerated), 2= moderate symptoms (definite awareness of symptoms that is bothersome but tolerable) and 3 = severe symptoms (symptoms that are hard to tolerate, cause interference with activities or daily living). Higher scores denote greater symptom severity; a negative change from baseline indicate improvement. Severity of rhinorrhea (average of anterior \[runny nose\]/posterior nasal discharge \[post-nasal drip\]) is presented here. Baseline was defined as the average of the scores in the 7 days prior to the first dose of study drug.

    Time frame: Baseline (Day -7 to Day -1) and Weeks 24 and 52

  15. Change From Baseline to Week 52 in Monthly Average TSS Derived From the Nasal Symptom Diary

    The nasal symptom diary is designed to assess the severity of CRS nasal symptoms on daily basis. The TSS is a composite score consisting of the sum of the following symptoms assessed daily in the morning: nasal congestion/obstruction, decreased/loss of sense of smell, rhinorrhea (average of anterior/posterior nasal discharge). Each of the individual items were scored from 0 = no symptoms to 3 = severe symptoms. TSS is the sum of individual items and ranges between 0 = no symptoms and 9 = severe symptoms. Higher scores on the TSS indicate greater symptom severity; a negative change from baseline indicate improvement. Baseline was defined as the average of the scores in the 7 days prior to the first dose of study drug.

    Time frame: Baseline (Day -7 to Day -1) and Week 52

  16. Change From Baseline to Weeks 24 and 52 in Visual Analog Scale (VAS) Rhinosinusitis

    The rhinosinusitis VAS is used to evaluate the overall severity of the rhinosinusitis. It is a recommended scale to determine the participant's disease severity and to guide the treatment for CRS. The participant is asked to answer the following question: "How troublesome are your symptoms of your rhinosinusitis" on a 10-centimeter VAS from 0 = not troublesome to 10 = worst thinkable troublesome. Based on their score on the VAS, the severity of rhinosinusitis is divided into 3 categories as follows: mild = VAS 0 to 3, moderate = VAS \>3 to 7 and severe = VAS \>7 to 10; higher score indicating worse outcome; a negative change from baseline indicate improvement. Baseline was defined as the last available value before the first dose of study drug.

    Time frame: Baseline (Day 1) and Weeks 24 and 52

  17. Change From Baseline to Week 52 in UPSIT

    The UPSIT (UPSIT 40 odorant test) is a rapid and easy-to-administer method to quantitatively assess human olfactory function. The test consists of 4 booklets, each containing 10 odorants with 1 odorant per page. Above each odorant strip is a multiple-choice question with 4 alternative words to describe the odor and the participant is asked to indicate which word best describes the odor. Each smell has a possible of 4 answers with one being correct, therefore the potential total scores can range from 0 (worst possible score) to 40 (best possible score), with 1 point being awarded for each correctly identified odor. Scores of \<=18 were classified as anosmia, 19 to 25 as severe microsmia, 26 to 30 as moderate microsmia, 31 to 34 as mild microsmia, and 35 to 40 as normal smell appreciation. Higher scores indicated better olfactory function, i.e. better sense of smell. Baseline was defined as the last available value before the first dose of study drug.

    Time frame: Baseline (Day 1) and Week 52

  18. Change From Baseline to Week 52 in Monthly Average Decreased/Loss of Smell Using the Nasal Symptom Diary

    The nasal symptom diary is designed to assess the severity of CRS nasal symptoms on daily basis. Decreased/loss of smell is scored as: 0 = no symptoms, 1 = mild symptoms (symptoms clearly present, but minimal awareness and easily tolerated), 2= moderate symptoms (definite awareness of symptoms that is bothersome but tolerable) and 3 = severe symptoms (symptoms that are hard to tolerate, cause interference with activities or daily living). Higher scores denote greater symptom severity; a negative change from baseline indicate improvement. Baseline was defined as the average of the scores in the 7 days prior to the first dose of study drug.

    Time frame: Baseline (Day -7 to Day -1) and Week 52

  19. Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs)

    An AE was any untoward medical occurrence in a participant or clinical study participant, temporally associated with the use of study drug, whether or not considered related to the study drug. A SAE was defined as any untoward medical occurrence that, at any dose: resulted in death, was life-threatening, required inpatient hospitalization or prolongation of existing hospitalization, resulted in persistent disability/incapacity, was a congenital anomaly/birth defect or was a medically important event. TEAEs were AEs that developed, worsened or became serious during the treatment-emergent period.

    Time frame: From first dose of study drug (Day 1) up to end of follow-up per participant, up to approximately 64 weeks

  20. Serum Concentration of Dupilumab Over Time

    Blood samples were collected at the specified timepoints to obtain serum concentration of dupilumab.

    Time frame: Baseline (Day 1) and Weeks 12, 24 and 52

  21. Percent Change From Baseline in Fungal-specific IgE at Week 52

    Blood samples were collected at specified timepoints for the assessment of fungal-specific IgE which was measured with a quantitative method approved for diagnostic testing; a negative change from baseline indicated improvement. Baseline was defined as the last available value before the first dose of study drug.

    Time frame: Baseline (Day 1) and Week 52

  22. Number of Participants With Treatment-emergent Anti-drug Antibodies (ADA) to Dupilumab

    Plasma samples were collected to evaluate antibodies to dupilumab. Treatment-emergent ADA responses were defined as a positive response in the ADA assay post first dose, when baseline results were negative or missing.

    Time frame: From first dose of study drug (Day 1) up to end of follow-up per participant, up to approximately 64 weeks

07

Results

Posted Dec 22, 2025

Participant flow

This study was conducted at 45 centers in 9 countries. A total of 152 participants were screened from 01-Dec-2020 to 28-Nov-2023 of which 90 were screen failures. Screen failures were mainly due to not meeting eligibility criteria.

Participant flow — Overall Study
MilestonePlaceboDupilumab
Started2933
Randomized and treated2833
Completed2129
Not completed84
Withdrew: Other20
Withdrew: Withdrawal by subject53
Withdrew: Adverse event11

Outcome measures

PrimaryChange From Baseline to Week 52 in Opacification of Sinuses Assessed by CT Scan Using the LMK Score

The LMK score is used to quantify the degree of opacification of each sinus on CT scan. The CT scan LMK staging system represents the most widely established method of sinus CT scoring. The LMK total score is based on assessment of the CT scan findings for each sinus area (maxillary, anterior ethmoid, posterior ethmoid, sphenoid, and frontal sinus plus the osteomeatal complex on each side). The extent of sinus opacification is rated on a 3-point scale ranging from 0 = normal to 2 = total opacification. In addition, the osteomeatal complex is graded as 0 = not occluded or 2 = occluded. The maximum score is 12 per side; total score ranges from 0 (normal) to 24 (more opacified) corresponding to the sum of all sinuses and the osteomeatal complexes bilaterally. Higher score indicate worse outcome; a negative change from baseline indicate improvement. Baseline was defined as the last available value before the first dose of study drug.

Time frame:
Baseline (Day 1) and Week 52
Reported as:
Least squares mean · score on a scale
Change From Baseline to Week 52 in Opacification of Sinuses Assessed by CT Scan Using the LMK Score
score on a scalePlaceboDupilumab
Change From Baseline to Week 52 in Opacification of Sinuses Assessed by CT Scan Using the LMK Score-1.81 ± 0.81-9.17 ± 0.74
Statistical analysis
  • Placebo vs Dupilumab · ANCOVA · p = <0.0001 · Least squares (ls) mean difference: -7.36 · 95% CI -9.38 to -5.35
SecondaryChange From Baseline to Week 24 in Monthly Average Nasal Congestion/Obstruction Score From the Nasal Symptom Diary

The nasal symptom diary is designed to assess the severity of chronic rhinosinusitis (CRS) nasal symptoms on daily basis. Score range: 0 = no symptoms, 1 = mild symptoms (symptoms clearly present, but minimal awareness and easily tolerated), 2= moderate symptoms (definite awareness of symptoms that is bothersome but tolerable) and 3 = severe symptoms (symptoms that are hard to tolerate, cause interference with activities or daily living). Higher scores denote greater symptom severity; a negative change from baseline indicate improvement. Baseline was defined as the average of the scores in the 7 days prior to the first dose of study drug.

Time frame:
Baseline (Day -7 to Day -1) and Week 24
Reported as:
Least squares mean · score on a scale
Change From Baseline to Week 24 in Monthly Average Nasal Congestion/Obstruction Score From the Nasal Symptom Diary
score on a scalePlaceboDupilumab
Change From Baseline to Week 24 in Monthly Average Nasal Congestion/Obstruction Score From the Nasal Symptom Diary-0.43 ± 0.13-1.30 ± 0.11
Statistical analysis
  • Placebo vs Dupilumab · ANCOVA · p = <0.0001 · Ls mean difference: -0.87 · 95% CI -1.18 to -0.56
SecondaryChange From Baseline to Week 24 in Endoscopy Nasal Polyp Score (NPS)

The bilateral endoscopy NPS is determined by the clinician who assesses nasal polyp formation. Polyps on each side of the nose are graded based on polyp size; scores: 0 = no polyps; 1 = small polyps in the middle meatus not reaching below the inferior border of the middle turbinate; 2 = polyps reaching below the lower border of the middle turbinate; 3 = large polyps reaching the lower border of the inferior turbinate or polyps medial to the middle turbinate and 4 = large polyps causing complete obstruction. The total score is the sum of the right and left nostrils, ranging from 0 (no obstruction) to 8 (complete obstruction); higher score indicating worse outcome; a negative change from baseline indicate improvement. Baseline was defined as the last available value before the first dose of study drug.

Time frame:
Baseline (Day 1) and Week 24
Reported as:
Least squares mean · score on a scale
Change From Baseline to Week 24 in Endoscopy Nasal Polyp Score (NPS)
score on a scalePlaceboDupilumab
Change From Baseline to Week 24 in Endoscopy Nasal Polyp Score (NPS)-0.80 ± 0.38-3.16 ± 0.34
Statistical analysis
  • Placebo vs Dupilumab · ANCOVA · p = <0.0001 · Ls mean difference: -2.36 · 95% CI -3.31 to -1.41
SecondaryChange From Baseline to Week 24 in Opacification of Sinuses Assessed by CT Scan Using the LMK Score

The LMK score is used to quantify the degree of opacification of each sinus on CT scan. The CT scan LMK staging system represents the most widely established method of sinus CT scoring. The LMK total score is based on assessment of the CT scan findings for each sinus area (maxillary, anterior ethmoid, posterior ethmoid, sphenoid, and frontal sinus plus the osteomeatal complex on each side). The extent of sinus opacification is rated on a 3-point scale ranging from 0 = normal to 2 = total opacification. In addition, the osteomeatal complex is graded as 0 = not occluded or 2 = occluded. The maximum score is 12 per side; total score ranges from 0 (normal) to 24 (more opacified) corresponding to the sum of all sinuses and the osteomeatal complexes bilaterally. Higher score indicate worse outcome; a negative change from baseline indicate improvement. Baseline was defined as the last available value before the first dose of study drug.

Time frame:
Baseline (Day 1) and Week 24
Reported as:
Least squares mean · score on a scale
Change From Baseline to Week 24 in Opacification of Sinuses Assessed by CT Scan Using the LMK Score
score on a scalePlaceboDupilumab
Change From Baseline to Week 24 in Opacification of Sinuses Assessed by CT Scan Using the LMK Score-1.93 ± 0.82-7.38 ± 0.80
Statistical analysis
  • Placebo vs Dupilumab · ANCOVA · p = <0.0001 · Ls mean difference: -5.45 · 95% CI -7.48 to -3.43
SecondaryChange From Baseline to Week 24 in Monthly Average Total Symptom Score (TSS) Derived From the Nasal Symptom Diary

The nasal symptom diary is designed to assess the severity of CRS nasal symptoms on daily basis. The TSS is a composite score consisting of the sum of the following symptoms assessed daily in the morning: nasal congestion/obstruction, decreased/loss of sense of smell, rhinorrhea (average of anterior/posterior nasal discharge). Each of the individual items were scored from 0 = no symptoms to 3 = severe symptoms. TSS is the sum of individual items and ranges between 0 = no symptoms and 9 = severe symptoms. Higher scores on the TSS indicate greater symptom severity; a negative change from baseline indicate improvement. Baseline was defined as the average of the scores in the 7 days prior to the first dose of study drug.

Time frame:
Baseline (Day -7 to Day -1) and Week 24
Reported as:
Least squares mean · score on a scale
Change From Baseline to Week 24 in Monthly Average Total Symptom Score (TSS) Derived From the Nasal Symptom Diary
score on a scalePlaceboDupilumab
Change From Baseline to Week 24 in Monthly Average Total Symptom Score (TSS) Derived From the Nasal Symptom Diary-1.26 ± 0.35-3.45 ± 0.31
Statistical analysis
  • Placebo vs Dupilumab · ANCOVA · p = <0.0001 · Ls mean difference: -2.18 · 95% CI -3.04 to -1.32
SecondaryChange From Baseline to Week 24 in University of Pennsylvania Smell Identification Test (UPSIT)

The UPSIT (UPSIT 40 odorant test) is a rapid and easy-to-administer method to quantitatively assess human olfactory function. The test consists of 4 booklets, each containing 10 odorants with 1 odorant per page. Above each odorant strip is a multiple-choice question with 4 alternative words to describe the odor and the participant is asked to indicate which word best describes the odor. Each smell has a possible of 4 answers with one being correct, therefore the potential total scores can range from 0 (worst possible score) to 40 (best possible score), with 1 point being awarded for each correctly identified odor. Scores of \<=18 were classified as anosmia, 19 to 25 as severe microsmia, 26 to 30 as moderate microsmia, 31 to 34 as mild microsmia, and 35 to 40 as normal smell appreciation. Higher scores indicated better olfactory function; i.e. better sense of smell. Baseline was defined as the last available value before the first dose of study drug.

Time frame:
Baseline (Day 1) and Week 24
Reported as:
Least squares mean · score on a scale
Change From Baseline to Week 24 in University of Pennsylvania Smell Identification Test (UPSIT)
score on a scalePlaceboDupilumab
Change From Baseline to Week 24 in University of Pennsylvania Smell Identification Test (UPSIT)4.41 ± 1.718.87 ± 1.60
Statistical analysis
  • Placebo vs Dupilumab · ANCOVA · p = 0.0392 · Ls mean difference: 4.46 · 95% CI 0.22 to 8.71
SecondaryChange From Baseline to Week 24 in Monthly Average Decreased/Loss of Smell Using the Nasal Symptom Diary

The nasal symptom diary is designed to assess the severity of CRS nasal symptoms on daily basis. Decreased/loss of smell is scored as: 0 = no symptoms, 1 = mild symptoms (symptoms clearly present, but minimal awareness and easily tolerated), 2= moderate symptoms (definite awareness of symptoms that is bothersome but tolerable) and 3 = severe symptoms (symptoms that are hard to tolerate, cause interference with activities or daily living). Higher scores denote greater symptom severity; a negative change from baseline indicate improvement. Baseline was defined as the average of the scores in the 7 days prior to the first dose of study drug.

Time frame:
Baseline (Day -7 to Day -1) and Week 24
Reported as:
Least squares mean · score on a scale
Change From Baseline to Week 24 in Monthly Average Decreased/Loss of Smell Using the Nasal Symptom Diary
score on a scalePlaceboDupilumab
Change From Baseline to Week 24 in Monthly Average Decreased/Loss of Smell Using the Nasal Symptom Diary-0.39 ± 0.16-1.28 ± 0.15
Statistical analysis
  • Placebo vs Dupilumab · ANCOVA · p = <0.0001 · Ls mean difference: -0.89 · 95% CI -1.29 to -0.49
SecondaryChange From Baseline to Week 52 in Endoscopy NPS

The bilateral endoscopy NPS is determined by the clinician who assesses nasal polyp formation. Polyps on each side of the nose are graded based on polyp size; scores: 0 = no polyps; 1 = small polyps in the middle meatus not reaching below the inferior border of the middle turbinate; 2 = polyps reaching below the lower border of the middle turbinate; 3 = large polyps reaching the lower border of the inferior turbinate or polyps medial to the middle turbinate and 4 = large polyps causing complete obstruction. The total score is the sum of the right and left nostrils, ranging from 0 (no obstruction) to 8 (complete obstruction); higher score indicating worse outcome; a negative change from baseline indicate improvement. Baseline was defined as the last available value before the first dose of study drug.

Time frame:
Baseline (Day 1) and Week 52
Reported as:
Least squares mean · score on a scale
Change From Baseline to Week 52 in Endoscopy NPS
score on a scalePlaceboDupilumab
Change From Baseline to Week 52 in Endoscopy NPS-0.55 ± 0.43-3.32 ± 0.39
Statistical analysis
  • Placebo vs Dupilumab · ANCOVA · p = <0.0001 · Ls mean difference: -2.77 · 95% CI -3.82 to -1.72
SecondaryChange From Baseline to Week 52 in Monthly Average Nasal Congestion/Obstruction Score From the Nasal Symptom Diary

The nasal symptom diary is designed to assess the severity of CRS nasal symptoms on daily basis. Score range: 0 = no symptoms, 1 = mild symptoms (symptoms clearly present, but minimal awareness and easily tolerated), 2= moderate symptoms (definite awareness of symptoms that is bothersome but tolerable) and 3 = severe symptoms (symptoms that are hard to tolerate, cause interference with activities or daily living). Higher scores denote greater symptom severity; a negative change from baseline indicate improvement. Baseline was defined as the average of the scores in the 7 days prior to the first dose of study drug.

Time frame:
Baseline (Day -7 to Day -1) and Week 52
Reported as:
Least squares mean · score on a scale
Change From Baseline to Week 52 in Monthly Average Nasal Congestion/Obstruction Score From the Nasal Symptom Diary
score on a scalePlaceboDupilumab
Change From Baseline to Week 52 in Monthly Average Nasal Congestion/Obstruction Score From the Nasal Symptom Diary-0.17 ± 0.15-1.57 ± 0.14
Statistical analysis
  • Placebo vs Dupilumab · ANCOVA · p = <0.0001 · Ls mean difference: -1.40 · 95% CI -1.77 to -1.02
SecondaryChange From Baseline to Week 52 in 22-item Sino-Nasal Outcome Test (SNOT-22) Total Score

The SNOT-22 is a validated questionnaire designed to assess the impact of CRS on participants health-related quality of life (HRQoL) and has 22 items covering symptoms, social/emotional impact, productivity, and sleep consequences of CRS. The recall period is past 2 weeks. Each item is rated on a 6-point Likert scale; response options ranging from 0 = no problem to 5 = problem as bad as it can be. A global score ranging from 0 (no impact) to 110 (severe impact) is calculated by summing the responses to all items; higher score indicates greater rhinosinusitis-related health burden; a negative change from baseline indicate improvement. Baseline was defined as the last available value before the first dose of study drug.

Time frame:
Baseline (Day 1) and Week 52
Reported as:
Least squares mean · score on a scale
Change From Baseline to Week 52 in 22-item Sino-Nasal Outcome Test (SNOT-22) Total Score
score on a scalePlaceboDupilumab
Change From Baseline to Week 52 in 22-item Sino-Nasal Outcome Test (SNOT-22) Total Score-12.64 ± 4.06-29.94 ± 3.75
Statistical analysis
  • Placebo vs Dupilumab · ANCOVA · p = 0.0004 · Ls mean difference: -17.30 · 95% CI -26.86 to -7.74
SecondaryChange From Baseline to Week 52 in Three-dimensional CT Total Volume Occupied by Disease in All Sinuses

This method is used to calculate the percent occupied by disease. It is performed at locations including ethmoid sinus, frontal sinus, maxillary sinus, and sphenoid sinus. The total volume occupied by disease in all sinuses is reported here. For the analysis, central reading at baseline was used for comparison with Week 52 reading. It is graded on a scale of 0-100%; a higher score is worse and indicates greater volume occupied by disease. A negative change from baseline indicated improvement. Baseline was defined as the last available value before the first dose of study drug.

Time frame:
Baseline (Day 1) and Week 52
Reported as:
Least squares mean · percent
Change From Baseline to Week 52 in Three-dimensional CT Total Volume Occupied by Disease in All Sinuses
percentPlaceboDupilumab
Change From Baseline to Week 52 in Three-dimensional CT Total Volume Occupied by Disease in All Sinuses-5.73 ± 3.91-42.04 ± 3.47
Statistical analysis
  • Placebo vs Dupilumab · ANCOVA · p = <0.0001 · Ls mean difference: -36.31 · 95% CI -45.59 to -27.03
SecondaryPercentage of Participants Who Received Systemic Corticosteroids (SCS) and/or Underwent or Planned to Undergo Surgery for Allergic Fungal Rhinosinusitis (AFRS) at Week 52

SCS use was defined as the use of SCS for rescue treatment of AFRS or for another reason and was captured by the Investigator (or designee) in electronic case report form (eCRF). Participants who underwent or planned to undergo surgery for AFRS were also recorded in eCRF.

Time frame:
Week 52
Reported as:
Number · percentage of particpants
Percentage of Participants Who Received Systemic Corticosteroids (SCS) and/or Underwent or Planned to Undergo Surgery for Allergic Fungal Rhinosinusitis (AFRS) at Week 52
percentage of particpantsPlaceboDupilumab
Percentage of Participants Who Received Systemic Corticosteroids (SCS) and/or Underwent or Planned to Undergo Surgery for Allergic Fungal Rhinosinusitis (AFRS) at Week 5231.03.0
Statistical analysis
  • Placebo vs Dupilumab · Mantel Haenszel · p = 0.0010 · Risk difference (rd): -29.1 · 95% CI -46.42 to -11.79
SecondaryChange From Baseline to Week 24 in SNOT-22 Total Score

The SNOT-22 is a validated questionnaire designed to assess the impact of CRS on participants HRQoL and has 22 items covering symptoms, social/emotional impact, productivity, and sleep consequences of CRS. The recall period is past 2 weeks. Each item is rated on a 6-point Likert scale; response options ranging from 0 = no problem to 5 = problem as bad as it can be. A global score ranging from 0 (no impact) to 110 (severe impact) is calculated by summing the responses to all items; higher score indicates greater rhinosinusitis-related health burden; a negative change from baseline indicate improvement. Baseline was defined as the last available value before the first dose of study drug.

Time frame:
Baseline (Day 1) and Week 24
Reported as:
Least squares mean · score on a scale
Change From Baseline to Week 24 in SNOT-22 Total Score
score on a scalePlaceboDupilumab
Change From Baseline to Week 24 in SNOT-22 Total Score-11.63 ± 4.02-26.74 ± 3.81
Statistical analysis
  • Placebo vs Dupilumab · ANCOVA · p = 0.0032 · Ls mean difference: -15.11 · 95% CI -25.15 to -5.07
SecondaryPercent Change From Baseline in Serum Total Immunoglobulin-E (IgE) to Week 52

Blood samples were collected at specified timepoints for the assessment of IgE. Total IgE was measured with a quantitative method approved for diagnostic testing; a negative change from baseline indicate improvement. Baseline was defined as the last available value before the first dose of study drug.

Time frame:
Baseline (Day 1) and Week 52
Reported as:
Least squares mean · percent change
Percent Change From Baseline in Serum Total Immunoglobulin-E (IgE) to Week 52
percent changePlaceboDupilumab
Percent Change From Baseline in Serum Total Immunoglobulin-E (IgE) to Week 526.91 ± 10.86-73.81 ± 11.40
Statistical analysis
  • Placebo vs Dupilumab · ANCOVA · p = <0.0001 · Ls mean difference: -80.72 · 95% CI -112.82 to -48.61
SecondaryChange From Baseline to Weeks 24 and 52 in the Monthly Average Rhinorrhea Score From the Nasal Symptom Diary

The nasal symptom diary is designed to assess the severity of CRS nasal symptoms on daily basis. Score range: 0 = no symptoms, 1 = mild symptoms (symptoms clearly present, but minimal awareness and easily tolerated), 2= moderate symptoms (definite awareness of symptoms that is bothersome but tolerable) and 3 = severe symptoms (symptoms that are hard to tolerate, cause interference with activities or daily living). Higher scores denote greater symptom severity; a negative change from baseline indicate improvement. Severity of rhinorrhea (average of anterior \[runny nose\]/posterior nasal discharge \[post-nasal drip\]) is presented here. Baseline was defined as the average of the scores in the 7 days prior to the first dose of study drug.

Time frame:
Baseline (Day -7 to Day -1) and Weeks 24 and 52
Reported as:
Least squares mean · score on a scale
Change From Baseline to Weeks 24 and 52 in the Monthly Average Rhinorrhea Score From the Nasal Symptom Diary
score on a scalePlaceboDupilumab
Week 24-0.44 ± 0.13-0.92 ± 0.12
Week 52-0.33 ± 0.15-1.09 ± 0.13
SecondaryChange From Baseline to Week 52 in Monthly Average TSS Derived From the Nasal Symptom Diary

The nasal symptom diary is designed to assess the severity of CRS nasal symptoms on daily basis. The TSS is a composite score consisting of the sum of the following symptoms assessed daily in the morning: nasal congestion/obstruction, decreased/loss of sense of smell, rhinorrhea (average of anterior/posterior nasal discharge). Each of the individual items were scored from 0 = no symptoms to 3 = severe symptoms. TSS is the sum of individual items and ranges between 0 = no symptoms and 9 = severe symptoms. Higher scores on the TSS indicate greater symptom severity; a negative change from baseline indicate improvement. Baseline was defined as the average of the scores in the 7 days prior to the first dose of study drug.

Time frame:
Baseline (Day -7 to Day -1) and Week 52
Reported as:
Least squares mean · score on a scale
Change From Baseline to Week 52 in Monthly Average TSS Derived From the Nasal Symptom Diary
score on a scalePlaceboDupilumab
Change From Baseline to Week 52 in Monthly Average TSS Derived From the Nasal Symptom Diary-0.71 ± 0.39-4.10 ± 0.35
SecondaryChange From Baseline to Weeks 24 and 52 in Visual Analog Scale (VAS) Rhinosinusitis

The rhinosinusitis VAS is used to evaluate the overall severity of the rhinosinusitis. It is a recommended scale to determine the participant's disease severity and to guide the treatment for CRS. The participant is asked to answer the following question: "How troublesome are your symptoms of your rhinosinusitis" on a 10-centimeter VAS from 0 = not troublesome to 10 = worst thinkable troublesome. Based on their score on the VAS, the severity of rhinosinusitis is divided into 3 categories as follows: mild = VAS 0 to 3, moderate = VAS \>3 to 7 and severe = VAS \>7 to 10; higher score indicating worse outcome; a negative change from baseline indicate improvement. Baseline was defined as the last available value before the first dose of study drug.

Time frame:
Baseline (Day 1) and Weeks 24 and 52
Reported as:
Least squares mean · score on a scale
Change From Baseline to Weeks 24 and 52 in Visual Analog Scale (VAS) Rhinosinusitis
score on a scalePlaceboDupilumab
Week 24-1.29 ± 0.61-4.30 ± 0.58
Week 52-1.20 ± 0.57-5.52 ± 0.54
SecondaryChange From Baseline to Week 52 in UPSIT

The UPSIT (UPSIT 40 odorant test) is a rapid and easy-to-administer method to quantitatively assess human olfactory function. The test consists of 4 booklets, each containing 10 odorants with 1 odorant per page. Above each odorant strip is a multiple-choice question with 4 alternative words to describe the odor and the participant is asked to indicate which word best describes the odor. Each smell has a possible of 4 answers with one being correct, therefore the potential total scores can range from 0 (worst possible score) to 40 (best possible score), with 1 point being awarded for each correctly identified odor. Scores of \<=18 were classified as anosmia, 19 to 25 as severe microsmia, 26 to 30 as moderate microsmia, 31 to 34 as mild microsmia, and 35 to 40 as normal smell appreciation. Higher scores indicated better olfactory function, i.e. better sense of smell. Baseline was defined as the last available value before the first dose of study drug.

Time frame:
Baseline (Day 1) and Week 52
Reported as:
Least squares mean · score on a scale
Change From Baseline to Week 52 in UPSIT
score on a scalePlaceboDupilumab
Change From Baseline to Week 52 in UPSIT2.12 ± 1.739.45 ± 1.57
SecondaryChange From Baseline to Week 52 in Monthly Average Decreased/Loss of Smell Using the Nasal Symptom Diary

The nasal symptom diary is designed to assess the severity of CRS nasal symptoms on daily basis. Decreased/loss of smell is scored as: 0 = no symptoms, 1 = mild symptoms (symptoms clearly present, but minimal awareness and easily tolerated), 2= moderate symptoms (definite awareness of symptoms that is bothersome but tolerable) and 3 = severe symptoms (symptoms that are hard to tolerate, cause interference with activities or daily living). Higher scores denote greater symptom severity; a negative change from baseline indicate improvement. Baseline was defined as the average of the scores in the 7 days prior to the first dose of study drug.

Time frame:
Baseline (Day -7 to Day -1) and Week 52
Reported as:
Least squares mean · score on a scale
Change From Baseline to Week 52 in Monthly Average Decreased/Loss of Smell Using the Nasal Symptom Diary
score on a scalePlaceboDupilumab
Change From Baseline to Week 52 in Monthly Average Decreased/Loss of Smell Using the Nasal Symptom Diary-0.24 ± 0.17-1.41 ± 0.16
SecondaryNumber of Participants With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs)

An AE was any untoward medical occurrence in a participant or clinical study participant, temporally associated with the use of study drug, whether or not considered related to the study drug. A SAE was defined as any untoward medical occurrence that, at any dose: resulted in death, was life-threatening, required inpatient hospitalization or prolongation of existing hospitalization, resulted in persistent disability/incapacity, was a congenital anomaly/birth defect or was a medically important event. TEAEs were AEs that developed, worsened or became serious during the treatment-emergent period.

Time frame:
From first dose of study drug (Day 1) up to end of follow-up per participant, up to approximately 64 weeks
Reported as:
Count of participants · Participants
Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Treatment-emergent Serious Adverse Events (TESAEs)
ParticipantsPlaceboDupilumab
TEAEs2223
TESAEs30
SecondarySerum Concentration of Dupilumab Over Time

Blood samples were collected at the specified timepoints to obtain serum concentration of dupilumab.

Time frame:
Baseline (Day 1) and Weeks 12, 24 and 52
Reported as:
Mean · nanogram/milliliter
Serum Concentration of Dupilumab Over Time
nanogram/milliliterDupilumab
Day 10.00 ± 0.00
Week 1247750.00 ± 17828.70
Week 2449597.78 ± 26542.80
Week 5257284.21 ± 27401.32
SecondaryPercent Change From Baseline in Fungal-specific IgE at Week 52

Blood samples were collected at specified timepoints for the assessment of fungal-specific IgE which was measured with a quantitative method approved for diagnostic testing; a negative change from baseline indicated improvement. Baseline was defined as the last available value before the first dose of study drug.

Time frame:
Baseline (Day 1) and Week 52
Reported as:
Mean · percent change
Percent Change From Baseline in Fungal-specific IgE at Week 52
percent changePlaceboDupilumab
A. fumigatus Antigen IgE Antibody (AB)-65.79-77.20 ± 9.00
F. proliferatum Antigen IgE AB-20.18 ± 38.03-66.09 ± 16.88
C. lunata Antigen IgE AB1.56 ± 29.80-74.82 ± 12.34
S. rostrata Antigen IgE AB28.89 ± 52.58-61.77 ± 14.37
C. albicans Antigen IgE AB15.69 ± 33.17-63.60 ± 17.06
B. spicifera Antigen IgE AB19.12 ± 52.10-56.26 ± 22.36
A. niger Antigen IgE AB2.46 ± 55.43-67.48 ± 13.72
A. flavus Antigen IgE AB0.75 ± 44.77-52.94 ± 19.62
A. tenuis alternata Antigen IgE AB16.06 ± 47.96-56.07 ± 21.78
Mould Mix 2 IgE-17.50 ± 29.93-66.81 ± 20.86
SecondaryNumber of Participants With Treatment-emergent Anti-drug Antibodies (ADA) to Dupilumab

Plasma samples were collected to evaluate antibodies to dupilumab. Treatment-emergent ADA responses were defined as a positive response in the ADA assay post first dose, when baseline results were negative or missing.

Time frame:
From first dose of study drug (Day 1) up to end of follow-up per participant, up to approximately 64 weeks
Reported as:
Count of participants · Participants
Number of Participants With Treatment-emergent Anti-drug Antibodies (ADA) to Dupilumab
ParticipantsPlaceboDupilumab
Number of Participants With Treatment-emergent Anti-drug Antibodies (ADA) to Dupilumab01

Adverse events

Collected over Adverse events and deaths were assessed from first dose of study drug (Day 1) up to end of follow-up per participant, up to approximately 64 weeks. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Placebo0/28 (0%)3/28 (10.7%)15/28 (53.6%)
Dupilumab0/33 (0%)0/33 (0%)16/33 (48.5%)
Most frequent serious events
Most frequent serious events
EventPlaceboDupilumab
Allergic Fungal RhinosinusitisRespiratory, thoracic and mediastinal disorders2/280/33
InfectionInfections and infestations1/280/33
UreterolithiasisRenal and urinary disorders1/280/33
Most frequent other events
Showing 10 of 12
Most frequent other events
EventPlaceboDupilumab
Allergic Fungal RhinosinusitisRespiratory, thoracic and mediastinal disorders6/281/33
Covid-19Infections and infestations4/285/33
Accidental OverdoseInjury, poisoning and procedural complications4/283/33
EpistaxisRespiratory, thoracic and mediastinal disorders1/284/33
AsthmaRespiratory, thoracic and mediastinal disorders2/280/33
Pain In ExtremityMusculoskeletal and connective tissue disorders2/280/33
Thermal BurnInjury, poisoning and procedural complications2/280/33
Suspected Covid-19Infections and infestations0/282/33
HeadacheNervous system disorders0/282/33
Abdominal PainGastrointestinal disorders0/282/33

Baseline characteristics

Analysis was performed on randomized population which included all participants from screened population who were allocated to a randomized drug by interactive response technology regardless of whether the drug was received or not.

Age, Continuous
Age, Continuous(years)PlaceboDupilumabTotal
Mean37.4 ± 14.041.9 ± 17.539.8 ± 16.0
Sex: Female, Male
Sex: Female, Male(Participants)PlaceboDupilumabTotal
Female41317
Male252045
Race (NIH/OMB)
Race (NIH/OMB)(Participants)PlaceboDupilumabTotal
American Indian or Alaska Native000
Asian131225
Native Hawaiian or Other Pacific Islander000
Black or African American358
White121527
More than one race000
Unknown or Not Reported112
Lund Mackay (LMK) score
Lund Mackay (LMK) score(score on a scale)PlaceboDupilumabTotal
Mean18.4 ± 3.417.5 ± 3.817.9 ± 3.6
08

Study locations

47 sites
  • Asthma Allergy & Immunology Clinical Research Unit Site Number : 8400001
    Tampa, Florida 33613, United States
  • Emory University Hospital Midtown Campus Site Number : 8400009
    Atlanta, Georgia 30308, United States
  • Advanced ENT and Allergy Site Number : 8400004
    Louisville, Kentucky 40220, United States
  • South Louisiana Ear, Nose, Throat and Facial Plastic Surgery Site Number : 8400019
    Mandeville, Louisiana 70471, United States
  • National Allergy and Asthma Research, LLC Site Number : 8400002
    Charleston, South Carolina 29407, United States
  • Vanderbilt University Medical Center Site Number : 8400013
    Nashville, Tennessee 37232, United States
  • REX Clinical Trials Site Number : 8400017
    Beaumont, Texas 77701-3713, United States
  • Ut- Houston Medical School Site Number : 8400010
    Houston, Texas 77030, United States
  • USA Clinical Trials Site Number : 8400020
    San Antonio, Texas 78229, United States
  • Alamo ENT Associates Site Number : 8400018
    San Antonio, Texas 78258, United States
  • Eastern Virginia Medical School (EVMS) Medical Group - Otola Site Number : 8400008
    Norfolk, Virginia 23507, United States
  • Investigational Site Number : 0320003
    CABA, Buenos Aires C1414AIF, Argentina
  • Investigational Site Number : 0320001
    CABA, Buenos Aires C1425BEN, Argentina
  • Investigational Site Number : 0320005
    Rosario, Santa Fe Province 2000, Argentina
  • Investigational Site Number : 0320002
    Buenos Aires, C1121ABE, Argentina
  • Investigational Site Number : 0320004
    Mendoza, 5500, Argentina
  • Investigational Site Number : 1240001
    Vancouver, British Columbia V6Z 1Y6, Canada
  • Investigational Site Number : 1560005
    Beijing, 100050, China
  • Investigational Site Number : 1560001
    Beijing, 100730, China
  • Investigational Site Number : 1560004
    Changsha, 410013, China
  • Investigational Site Number : 1560003
    Chengdu, 610041, China
  • Investigational Site Number : 1560013
    Fuzhou, 350005, China
  • Investigational Site Number : 1560006
    Hangzhou, 310003, China
  • Investigational Site Number : 1560012
    Hefei, China
  • Investigational Site Number : 1560002
    Nanjing, 210029, China
  • Investigational Site Number : 1560011
    Qingdao, 266555, China
  • Investigational Site Number : 1560009
    Shanghai, 200030, China
  • Investigational Site Number : 1560008
    Taiyuan, 030001, China
  • Investigational Site Number : 3560003
    Coimbatore, 641028, India
  • Investigational Site Number : 3560006
    Jodhpur, 342005, India
  • Investigational Site Number : 3560008
    New Delhi, 110 062., India
  • Investigational Site Number : 3760001
    Petah Tikva, 49100, Israel
  • Investigational Site Number : 3760002
    Rehovot, 76100, Israel
  • Investigational Site Number : 3920010
    Isehara, Kanagawa 2591193, Japan
  • Investigational Site Number : 3920006
    Shizuoka, Shizuoka 420-0853, Japan
  • Investigational Site Number : 3920008
    Bunkyo-ku, Tokyo 113-8431, Japan
  • Investigational Site Number : 3920001
    Meguro-ku, Tokyo 153-8515, Japan
  • Investigational Site Number : 3920003
    Shinagawa-ku, Tokyo 141-0001, Japan
  • Investigational Site Number : 3920009
    Shinjuku-ku, Tokyo 160-8582, Japan
  • Investigational Site Number : 6820002
    Riyadh, 12713, Saudi Arabia
  • Investigational Site Number : 6820001
    Riyadh, 22252, Saudi Arabia
  • Investigational Site Number : 7920004
    Adana, 01380, Turkey (Türkiye)
  • Investigational Site Number : 7920001
    Istanbul, 34093, Turkey (Türkiye)
  • Investigational Site Number : 7920007
    Istanbul, 34865, Turkey (Türkiye)
  • Investigational Site Number : 7920006
    Izmir, 35100, Turkey (Türkiye)
  • Investigational Site Number : 7920003
    Izmir, 35340, Turkey (Türkiye)
  • Investigational Site Number : 7920005
    Malatya, 44280, Turkey (Türkiye)
09

References and documents

Publications

  • Luong AU, Levy JM, Wise SK, Han JK, Yoshikawa M, Zhang L, Schlosser R, Ranganathan P, Dakin P, Maloney J, Yancopoulos GD, Fontenot AP, Phadke NA, Robinson LR. Dupilumab for patients with allergic fungal rhinosinusitis. J Allergy Clin Immunol. 2026 Jul 24:S0091-6749(26)00522-1. doi: 10.1016/j.jaci.2026.07.006. Online ahead of print. PubMed 42498125 ↗

Study documents

  • Study protocol · Mar 1, 2023
  • Statistical analysis plan · Jan 22, 2025

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: Yes — Qualified researchers may request access to patient level data and related study documents including the clinical study report, study protocol with any amendments, blank case report form, statistical analysis plan, and dataset specifications. Patient level data will be anonymized and study documents will be redacted to protect the privacy of trial participants. Further details on Sanofi's data sharing criteria, eligible studies, and process for requesting access can be found at: https://vivli.org

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 3, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT04684524
Lead sponsor
Sanofi
Collaborators
Regeneron Pharmaceuticals
Responsible party
Sponsor
First posted
Dec 24, 2020
Start date
Dec 1, 2020
Primary completion
Dec 14, 2024
Completion
Mar 7, 2025
Results posted
Dec 22, 2025
Last update
Sep 3, 2026

Study contacts

Clinical Sciences & Operations
study director · Sanofi

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.

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