Dupilumab in CRSsNP (Liberty CRSsNP)

A Randomized, Double-blind, Placebo-controlled Study to Evaluate the Efficacy and Safety of Dupilumab in Patients With Uncontrolled, Chronic Rhinosinusitis Without Nasal Polyposis (CRSsNP)

Primary Objective:

To evaluate the efficacy of dupilumab as assessed by the reduction at Week 24 in sinus opacification on computerized tomography (CT) scan in the dupilumab group only

Secondary Objectives:

• To evaluate the efficacy of dupilumab as assessed by the reduction at Week 24 in sinus opacification on CT scan and sinus total symptom score (sTSS) compared to placebo
• To evaluate the safety and tolerability of dupilumab in CRSsNP patients compared to placebo
• To evaluate the pharmacokinetics (PK) of dupilumab in CRSsNP patients compared to placebo
• Assessment of immunogenicity to dupilumab over time compared to placebo

Study Overview

• Status: Completed
• Conditions: Chronic Sinusitis; Sinusitis; Chronic Rhinosinusitis Without Nasal Polyps; Sinus Disorder; Respiratory Disorder
• Intervention / Treatment: Drug: Dupilumab SAR231893; Drug: Placebo

Detailed Description

The duration of study for each participant will include 2-4 weeks of screening period, 24-52 weeks randomized investigational medicinal product (IMP) intervention period and 12 weeks of follow-up period.

• Study Type: Interventional
• Enrollment (Actual): 71
• Phase: Phase 3

Contacts and Locations

Study Locations

• Argentina
  • Buenos Aires, Argentina, C1121ABE
    • Investigational Site Number : 0320002
  • Ciudad Autonoma Buenos Aires, Argentina, C1414AIF
    • Investigational Site Number : 0320003
  • Ciudad Autonoma Buenos Aires, Argentina, C1425BEN
    • Investigational Site Number : 0320001
• Belgium
  • Gent, Belgium, 9000
    • Investigational Site Number : 0560002
  • Leuven, Belgium, 3000
    • Investigational Site Number : 0560001
• Canada
  • Quebec, Canada, G1V 4G5
    • Investigational Site Number : 1240005
  • Quebec, Canada, G1V 4W2
    • Investigational Site Number : 1240003
  • British Columbia
    • Vancouver, British Columbia, Canada, V6Z 1Y6
      • Investigational Site Number : 1240013
  • Ontario
    • Hamilton, Ontario, Canada, L8L 2X2
      • Investigational Site Number : 1240010
    • Kingston, Ontario, Canada, K7L 2V7
      • Investigational Site Number : 1240007
    • London, Ontario, Canada, N6A 4V2
      • Investigational Site Number : 1240016
  • Quebec
    • Montreal, Quebec, Canada, H2X 3E4
      • Investigational Site Number : 1240001
    • Montreal, Quebec, Canada, H4A 3J1
      • Investigational Site Number : 1240012
    • Trois-Rivieres, Quebec, Canada, G8T 7A1
      • Investigational Site Number : 1240002
• Chile
  • Reg Metropolitana De Santiago
    • Santiago, Reg Metropolitana De Santiago, Chile, 8207257
      • Investigational Site Number : 1520001
• China
  • Beijing, China, 100730
    • Investigational Site Number : 1560001
  • Changchun, China, 130021
    • Investigational Site Number : 1560005
  • Changsha, China, 410013
    • Investigational Site Number : 1560013
  • Chongqing, China, 400016
    • Investigational Site Number : 1560010
  • Shanghai, China, 200065
    • Investigational Site Number : 1560006
  • Yantai, China, 264000
    • Investigational Site Number : 1560008
• Hungary
  • Budapest, Hungary, 1115
    • Investigational Site Number : 3480004
  • Pécs, Hungary, 7621
    • Investigational Site Number : 3480001
• Korea, Republic of
  • Seoul-teukbyeolsi
    • Seoul, Seoul-teukbyeolsi, Korea, Republic of, 07061
      • Investigational Site Number : 4100003
    • Seoul, Seoul-teukbyeolsi, Korea, Republic of, 135-710
      • Investigational Site Number : 4100002
• Portugal
  • Aveiro, Portugal, 3810-501
    • Investigational Site Number : 6200002
  • Guimarães, Portugal, 4810-061
    • Investigational Site Number : 6200001
  • Matosinhos, Portugal, 4464-513
    • Investigational Site Number : 6200003
• Russian Federation
  • Moscow, Russian Federation, 121359
    • Investigational Site Number : 6430005
  • St-Petersburg, Russian Federation, 197022
    • Investigational Site Number : 6430002
  • St-Petersburg, Russian Federation, 197022
    • Investigational Site Number : 6430003
  • Stavropol, Russian Federation, 355020
    • Investigational Site Number : 6430001
• Spain
  • Madrid, Spain, 28034
    • Investigational Site Number : 7240010
  • Andalucia
    • Sevilla, Andalucia, Spain, 41009
      • Investigational Site Number : 7240002
  • Barcelona [Barcelona]
    • Barcelona, Barcelona [Barcelona], Spain, 08036
      • Investigational Site Number : 7240001
  • Cantabria
    • Santander, Cantabria, Spain, 39008
      • Investigational Site Number : 7240007
  • Cádiz
    • Jerez de la Frontera, Cádiz, Spain, 11407
      • Investigational Site Number : 7240004
  • Madrid, Comunidad De
    • Madrid, Madrid, Comunidad De, Spain, 28027
      • Investigational Site Number : 7240009
    • Madrid / Madrid, Madrid, Comunidad De, Spain, 28040
      • Investigational Site Number : 7240005
  • Navarra
    • Pamplona, Navarra, Spain, 31008
      • Investigational Site Number : 7240008
• Sweden
  • Stockholm, Sweden, 171 76
    • Investigational Site Number : 7520001
• Ukraine
  • Dnipro, Ukraine, 49006
    • Investigational Site Number : 8040005
  • Ivano-Frankivsk, Ukraine, 76018
    • Investigational Site Number : 8040001
  • Kharkiv, Ukraine, 61166
    • Investigational Site Number : 8040004
  • Kyiv, Ukraine, 01033
    • Investigational Site Number : 8040008
  • Kyiv, Ukraine, 03680
    • Investigational Site Number : 8040002
  • Kyiv, Ukraine, 04050
    • Investigational Site Number : 8040007
• United States
  • California
    • Roseville, California, United States, 95661
      • Sacramento Ear, Nose & Throat Site Number : 8400010
    • Stockton, California, United States, 95207
      • Bensch Clinical Research LLC Site Number : 8400015
  • Colorado
    • Denver, Colorado, United States, 80230
      • Colorado Allergy and Asthma Centers, PC Site Number : 8400003
  • Missouri
    • Columbia, Missouri, United States, 65212
      • University of Missouri Health System Site Number : 8400016
  • Nebraska
    • Papillion, Nebraska, United States, 68046
      • Nebraska Medical Research Institute Site Number : 8400007
  • Ohio
    • Columbus, Ohio, United States, 43235
      • Optimed Research, LTD Site Number : 8400017
  • Oklahoma
    • Tulsa, Oklahoma, United States, 74136
      • Vital Prospects Clinical Research Institute, P.C. Site Number : 8400004
    • Tulsa, Oklahoma, United States, 74137
      • Essential Medical Research, LLC Site Number : 8400014
  • Texas
    • Dallas, Texas, United States, 75231
      • Pharmaceutical Research & Consulting, Inc. Site Number : 8400006
    • San Antonio, Texas, United States, 78258
      • Alamo ENT Associates Site Number : 8400021
  • Virginia
    • Norfolk, Virginia, United States, 23507
      • Eastern Virginia Medical School (EVMS) Medical Group - Otola Site Number : 8400009

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 12 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

• Participant must be at least 18 years of age at the time of signing the informed consent form (ICF).
• Participants must have bilateral inflammation of paranasal sinuses in CT scan with LMK ≥8 and bilateral ethmoid opacification before randomization.
• Participants must have ongoing symptoms of loss of smell and rhinorrhea (anterior/posterior) of any severity, with or without facial pain/pressure for at least 12 consecutive weeks by Visit 1.
• Participants must have ongoing symptoms of nasal congestion (NC)/obstruction at least 12 consecutive weeks before Visit 1 and a NC score of ≥ 2 at Visit 1 (day score) and Visit 2 (weekly average score).
• Participants must have sTSS (NC, rhinorrhea, facial pain/pressure) ≥5 at Visit 1 (day score) and Visit 2 (weekly average score).

• Participants must have one of the 2 following features:

  • Prior sinonasal surgery (see note at end of section 5.2 for definitions of sinonasal surgery) for CRS,
  • Treatment with systemic corticosteroids (SCS) therapy for CRS as defined by any dose and duration within the prior 2 years before screening (Visit 1) or intolerance/contraindication to SCS.

Exclusion Criteria:

• Participants with nasal conditions/concomitant nasal diseases such as nasal polyposis in endoscopy at Visit 1 or with history of nasal polyposis etc., making them non-evaluable at Visit 1 or for the primary efficacy
• Nasal cavity malignant tumor and benign tumors.
• Forced expiratory volume (FEV1) ≤50% of predicted normal at Visit 1.
• Radiologic suspicion or confirmed invasive or expansive fungal rhinosinusitis.
• Severe concomitant illness(es) that, in the investigator's judgment, would adversely affect 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
• History of malignancy within 5 years before Visit 1, except completely treated in situ carcinoma of the cervix, and completely treated and resolved nonmetastatic squamous or basal cell carcinoma of the skin.
• 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.
• Participants in prior dupilumab clinical trial or have been treated with commercially available dupilumab within 12 months or who discontinued dupilumab use due to adverse event.
• Participants who are treated with intranasal corticosteroid drops; intranasal steroid emitting devices/stents; nasal spray using exhalation delivery system, such as Xhance™, during screening period.
• Participants on unstable dose of intranasal corticosteroids (INCS) spray 4 weeks prior to Screening Visit (Visit1) and during screening period.
• Participants who have undergone sinus intranasal surgery (including polypectomy) within 6 months prior to Visit 1.

• Participants 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 participant 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.
• Participants received SCS during screening period (between Visit 1 and Visit 2).
• 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.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Quadruple

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Part A and B: Dupilumab; Participants received dupilumab 300 milligrams (mg) via SC injection q2w for up to 53.1 weeks.	Drug: Dupilumab SAR231893; Pharmaceutical form:Injection solution Route of administration: Subcutaneous
Placebo Comparator: Part A and B: Matching placebo; Participants received matching placebo via SC injection q2w for up to 53.2 weeks.	Drug: Placebo; Pharmaceutical form:Injection solution Route of administration: Subcutaneous

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Change From Baseline to Week 24 in Opacification of Sinuses Assessed by Computed Tomography (CT) Scan Using the Lund Mackay (LMK) Score in Dupilumab Group	The CT scan LMK staging system represented 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 on each side). The extent of mucosal opacification is rated on a 3-point scale ranging from 0 = normal to 2 = total opacification. In addition, the ostiomeatal complex is graded as 0 = not occluded or 2 = occluded. The maximum score is therefore 12 per side; total score ranges from 0 (normal) to 24 (more opacified), corresponding to the sum of all sinuses and the ostiomeatal unit. Higher score indicated worse outcome. Baseline was defined as the last available value up to randomization date and prior to the first dose of study medication.	Baseline (Day 1) and Week 24

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Change From Baseline to Week 24 in Opacification of Sinuses Assessed by CT Scan Using the LMK Score	The CT scan LMK staging system represented 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 on each side). The extent of mucosal opacification is rated on a 3-point scale ranging from 0 = normal to 2 = total opacification. In addition, the ostiomeatal complex is graded as 0 = not occluded or 2 = occluded. The maximum score is therefore 12 per side; total score ranges from 0 (normal) to 24 (more opacified), corresponding to the sum of all sinuses and the ostiomeatal unit. Higher score indicated worse outcome. Baseline was defined as the last available value up to randomization date and prior to the first dose of study medication.	Baseline (Day 1) and Week 24
Change From Baseline to Week 24 in Sinus Total Symptom Score (sTSS)	The sTSS is a composite score derived from the following individual items: nasal congestion (NC), anterior/posterior rhinorrhea, and facial pain/pressure. Each of the individual items were scored from 0 (no symptoms) to 3 (severe symptoms). The total score ranges from 0 to 9 and consists of the sum of NC, the averaged rhinorrhea item scores, and facial pain/pressure scores. Higher scores on sTSS indicated greater overall symptom severity. Baseline was defined as the last available value up to randomization date and prior to the first dose of study medication.	Baseline (Day 1) and Week 24
Number of Participants With Treatment-Emergent Adverse Events (TEAEs), Treatment-Emergent Serious AEs (TESAEs), and TEAEs Leading to Treatment Discontinuation	An AE was any untoward medical occurrence in a participant or clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. TEAEs were AEs that developed, worsened or became serious during the treatment-emergent period. 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, was a medically important event.	From the first dose of study drug (Day 1) up to the last dose of study drug administration (373 days) + 98 days, up to 471 days
Serum Concentration of Dupilumab Over Time	Blood samples were collected at the specified timepoints to evaluate serum concentration of dupilumab.	Baseline (Day 1) and Weeks 12, 24 and 52
Number of Participants With Antidrug Antibody (ADA) Response to Dupilumab and Positive Neutralizing Antibody (Nab)	Plasma samples were collected to evaluate antibodies to dupilumab. Pre-existing immunoreactivity was defined as an ADA positive response in the assay at baseline with all post first dose ADA results negative, OR an ADA positive response at baseline with all post first dose ADA responses less than 4-fold over baseline titer levels. Treatment-emergent ADA responses were defined as a positive response in the ADA assay post first dose, when baseline results were negative or missing. Treatment-boosted response was defined as an ADA positive response in the assay post first dose that was greater-than or equal to 4-fold over baseline titer levels, when baseline results were positive. Samples positive in the ADA assay were further characterized for the presence of NAbs.	Baseline (Day 1) and up to Week 52

Collaborators and Investigators

• Sponsor: Sanofi
• Collaborators: Regeneron Pharmaceuticals
• Investigators: Study Director: Clinical Sciences & Operations, Sanofi

Publications and helpful links

Helpful Links

• EFC16723 Plain language Results Summary

Study record dates

Study Major Dates

• Study Start (Actual): December 2, 2020
• Primary Completion (Actual): November 14, 2023
• Study Completion (Actual): January 29, 2024

Study Registration Dates

• First Submitted: December 16, 2020
• First Submitted That Met QC Criteria: December 16, 2020
• First Posted (Actual): December 22, 2020

Study Record Updates

• Last Update Posted (Actual): March 25, 2025
• Last Update Submitted That Met QC Criteria: January 22, 2025
• Last Verified: January 1, 2025

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Pathological Conditions, Anatomical; Respiratory Tract Infections; Infections; Nose Diseases; Otorhinolaryngologic Diseases; Rhinitis; Paranasal Sinus Diseases; Polyps; Rhinosinusitis; Respiratory Tract Diseases; Nasal Polyps; Respiration Disorders; Sinusitis
• Other Study ID Numbers: EFC16723; 2020-003117-35 (EudraCT Number); U1111-1246-7522 (Registry Identifier: ICTRP)

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: YES
• IPD Plan Description: 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

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: Yes
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: Yes