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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT05049122
Other study ID # LPS16872
Secondary ID
Status Completed
Phase Phase 4
First received
Last updated
Start date October 22, 2021
Est. completion date July 5, 2023

Study information

Verified date January 2024
Source Sanofi
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This was a Phase 4, open-label, single-arm, multicenter study to evaluate the efficacy and safety of dupilumab subcutaneous (SC) injection monotherapy in Japanese participants aged 18 or older with CRSwNP that is not adequately controlled with existing therapies. Duration of study period (per participant): - Screening Period (2 to 4 weeks) - Intervention Period (up to 52 weeks±3 days)


Recruitment information / eligibility

Status Completed
Enrollment 25
Est. completion date July 5, 2023
Est. primary completion date December 21, 2022
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Participants ?18 years of age. - Participants with bilateral sinonasal polyposis that despite prior treatment with systemic corticosteroids (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 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 prior to Visit [V] 1) of nasal congestion/blockage/obstruction with moderate or severe symptom severity (score 2 or 3) at V1 and a weekly average severity of greater than 1 at the time of enrollment (V2), and loss of smell, rhinorrhea (anterior/posterior). - Participant's body weight > 30 kg at V1. - Signed written informed consent. Exclusion Criteria: - Participant 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; Eosinophilic granulomatosis with polyangiitis (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; - Participant with nasal cavity malignant tumor and benign tumors (eg, papilloma, blood boil, etc). - Participant diagnosed with, suspected of, or at high risk of endoparasitic infection, and/or use of antiparasitic drug within 2 weeks before V1 or during screening - Undergone any and/or sinus intranasal surgery within 6 months before V1. - Participant who had participated in prior dupilumab clinical study or had been treated with commercially available dupilumab The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
Dupilumab SAR231893
Pharmaceutical form: solution for injection Route of administration: subcutaneous (SC)

Locations

Country Name City State
Japan Investigational site JAPAN Japan

Sponsors (2)

Lead Sponsor Collaborator
Sanofi Regeneron Pharmaceuticals

Country where clinical trial is conducted

Japan, 

Outcome

Type Measure Description Time frame Safety issue
Primary Percentage of Participants With NPS Improvement From Baseline >=1 at Week 24 The NPS was the sum of right and left nostril scores as assessed by central video recordings of nasal endoscopy (NE). For each nostril, NPS was graded based on polyp size: Grade 0:No polyps; Grade 1:Small polyps in the middle meatus not reaching below the inferior border of the middle turbinate; Grade 2:Polyps reaching below the lower border of the middle turbinate; Grade 3:Large polyps reaching the lower border of the inferior turbinate or polyps medial to the middle turbinate; Grade 4:Large polyps causing complete obstruction of the inferior nasal cavity. Score ranged from 0-8; higher scores indicated more severity. The baseline value was defined as the last available value before first study treatment administration. Baseline (Day 1) and Week 24
Secondary Change From Baseline in Bilateral NPS at Week 24 The NPS was the sum of right and left nostril scores as assessed by central video recordings of NE. For each nostril, NPS was graded based on polyp size: Grade 0:No polyps; Grade 1:Small polyps in the middle meatus not reaching below the inferior border of the middle turbinate; Grade 2:Polyps reaching below the lower border of the middle turbinate; Grade 3:Large polyps reaching the lower border of the inferior turbinate or polyps medial to the middle turbinate; Grade 4:Large polyps causing complete obstruction of the inferior nasal cavity. Score ranged from 0-8; higher scores indicated more severity. For participants who discontinued for other reasons, missing data are imputed using multiple imputation techniques assuming missing at random, and non-missing data collected after treatment discontinuation were used in the analysis. The baseline value was defined as the last available value before first study treatment administration. Baseline (Day 1) and Week 24
Secondary Change From Baseline in Nasal Congestion/Obstruction (NC) Symptom Severity Score Using the CRSwNP Nasal Symptom Diary at Week 24 The NC was assessed by the participant using a diary on a daily basis from Visit 1 and throughout the study on a 0 to 3 categorical scale (where 0 = no symptoms, 1 = mild symptoms, 2 = moderate symptoms and 3 = severe symptoms). It was scored as a reflective score (evaluation of symptom severity over the past 24 hours) by the participants. The score ranged from 0-3; higher scores indicated more severity. The baseline value was defined as the last available value before first study treatment administration. For participants who discontinued for other reasons, missing data are imputed using multiple imputation techniques assuming missing at random, and non-missing data collected after treatment discontinuation were used in the analysis. The baseline value was defined as the last available value before first study treatment administration. Baseline (Day 1) and Week 24
Secondary Change From Baseline in Opacification of Sinuses Assessed by Computerized Tomography (CT) Scan Using the Lund Mackay (LMK) Score at Week 24 The LMK system is based on localization with points given for degree of opacification: 0 = normal, 1 = partial opacification, 2 = total opacification. These points were applied to the maxillary, anterior ethmoid, posterior ethmoid, sphenoid, and frontal sinus on each side. The osteomeatal complex (OC) was graded as 0 = not occluded or 2 = occluded. The total score was the sum of scores from each side and ranged from 0 (normal) to 24 (more opacified); higher score indicated more severe disease. For participants who discontinued for other reasons, missing data are imputed using multiple imputation techniques assuming missing at random, and non-missing data collected after treatment discontinuation were used in the analysis. The baseline value was defined as the last available value before first study treatment administration. Baseline (Day 1) and Week 24
Secondary Change From Baseline in Total Symptom Score (TSS) at Week 24 The TSS was the sum of participant-assessed nasal symptom scores for nasal congestion and/or obstruction, decreased/loss of sense of smell and rhinorrhea (average of the non-missing anterior/posterior nasal discharge). On a daily basis from Visit 1 and throughout the study, participants used a diary to respond to the morning individual rhinosinusitis symptom questions using a 0 to 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. For participants who discontinued for other reasons, missing data are imputed using multiple imputation techniques assuming missing at random, and non-missing data collected after treatment discontinuation were used in the analysis. The baseline value was defined as the last available value before first study treatment administration. Baseline (Day 1) and Week 24
Secondary Change From Baseline in Loss of Smell Symptom Severity Score Using the Nasal Symptom Diary at Week 24 The severity of loss of smell was reported by the participants using the nasal symptom diary with 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. For participants who discontinued for other reasons, missing data are imputed using multiple imputation techniques assuming missing at random, and non-missing data collected after treatment discontinuation were used in the analysis. The baseline value was defined as the last available value before first study treatment administration. Baseline (Day 1) and Week 24
Secondary Change From Baseline in Visual Analogue Scale (VAS) for Rhinosinusitis at Week 24 The VAS for rhinosinusitis was used to evaluate the total disease severity. Rhinosinusitis was divided into mild, moderate and severe based on total severity VAS score (0 to 10 centimeters [cm] where mild: VAS 0 to 3; moderate: VAS >3 to 7 and severe: VAS >7 to 10). The participants were asked to indicate on a 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 (worst thinkable troublesome), where higher score indicated worse disease. For participants who discontinued for other reasons, missing data were imputed using multiple imputation techniques assuming missing at random, and non-missing data collected after treatment discontinuation were used in the analysis. The baseline value was defined as the last available value before first study treatment administration. Baseline (Day 1) and Week 24
Secondary Number of Participants With Treatment-Emergent Adverse Events (TEAEs), Treatment-Emergent Serious Adverse Events (TESAEs) and TEAEs Leading to Treatment Discontinuation at the End of 24-Week Treatment Period An Adverse Event (AE) was defined as any untoward medical occurrence in a participant temporally associated with the use of study treatment, whether or not considered related to the study treatment. TEAEs were defined as AEs that developed or worsened in grade or became serious during TE period which was defined as the period from the time of first dose of study treatment until the last visit in the study. Serious adverse events (SAE) were 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 or significant disability/incapacity, was a congenital anomaly/birth defect, was a medically important event. Data reported is till the end of 24-week treatment period. From Baseline (Day 1) up to Week 24
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