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Dupilumab SAR231893

Phase 3

Allergic Fungal Rhinosinusitis | Small molecule | Respiratory |Sanofi|Last Updated: Sep 3, 2026

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment62

FDA Designations

PRIORITY_REVIEWORPHAN_DRUG

Clinical trial landscape

Dupilumab SAR231893 · 11 trials · 12 indications

Phase 3 10Phase 2 1
NCT04678882Dupilumab in Japanese Patients With Atopic DermatitisAtopic Dermatitis
COMPLETED62 Analytics
NCT04681729Dupilumab for the Treatment of Chronic Inducible Cold Urticaria in Patients Who Remain Symptomatic Despite the Use of H1-antihistamine (LIBERTY-CINDU CUrIADS)Cold Urticaria
COMPLETED82 Analytics
NCT04684524Dupilumab in Allergic Fungal Rhinosinusitis (AFRS)Allergic Fungal Rhinosinusitis
COMPLETED62 Analytics
NCT04456673Pivotal Study to Assess the Efficacy, Safety and Tolerability of Dupilumab in Patients With Moderate to Severe COPD With Type 2 InflammationChronic Obstructive Pulmonary Disease
COMPLETED935 Analytics
NCT04202679Study of Dupilumab for the Treatment of Patients With Prurigo Nodularis, Inadequately Controlled on Topical Prescription Therapies or When Those Therapies Are Not Advisable (PRIME2)Neurodermatitis
COMPLETED160 Analytics
NCT04183335Study of Dupilumab for the Treatment of Patients With Prurigo Nodularis, Inadequately Controlled on Topical Prescription Therapies or When Those Therapies Are Not Advisable (LIBERTY-PN PRIME)Neurodermatitis
COMPLETED151 Analytics
NCT04180488Dupilumab for the Treatment of Chronic Spontaneous Urticaria in Patients Who Remain Symptomatic Despite the Use of H1 Antihistamine and Who Are naïve to, Intolerant of, or Incomplete Responders to Omalizumab (LIBERTY-CSU CUPID)Chronic Spontaneous Urticaria
COMPLETED397 Analytics
NCT03930732Pivotal Study to Assess the Efficacy, Safety and Tolerability of Dupilumab in Patients With Moderate-to-severe COPD With Type 2 InflammationChronic Obstructive Pulmonary Disease
COMPLETED939 Analytics
NCT02912468A Controlled Clinical Study of Dupilumab in Patients With Bilateral Nasal PolypsChronic Rhinosinusitis Phenotype With Nasal Polyps (CRSwNP)
COMPLETED276 Analytics
NCT02898454Controlled Clinical Study of Dupilumab in Patients With Nasal PolypsChronic Rhinosinusitis Phenotype With Nasal Polyps (CRSwNP)
COMPLETED448 Analytics
PHASE3COMPLETED
Dupilumab in Japanese Patients With Atopic Dermatitis
Atopic DermatitisUnlock trial analytics
PHASE3COMPLETED
Dupilumab for the Treatment of Chronic Inducible Cold Urticaria in Patients Who Remain Symptomatic Despite the Use of H1-antihistamine (LIBERTY-CINDU CUrIADS)
Cold UrticariaUnlock trial analytics
PHASE3COMPLETED
Dupilumab in Allergic Fungal Rhinosinusitis (AFRS)
Allergic Fungal RhinosinusitisUnlock trial analytics
PHASE3COMPLETED
Pivotal Study to Assess the Efficacy, Safety and Tolerability of Dupilumab in Patients With Moderate to Severe COPD With Type 2 Inflammation
Chronic Obstructive Pulmonary DiseaseUnlock trial analytics
PHASE3COMPLETED
Study of Dupilumab for the Treatment of Patients With Prurigo Nodularis, Inadequately Controlled on Topical Prescription Therapies or When Those Therapies Are Not Advisable (PRIME2)
NeurodermatitisUnlock trial analytics
PHASE3COMPLETED
Study of Dupilumab for the Treatment of Patients With Prurigo Nodularis, Inadequately Controlled on Topical Prescription Therapies or When Those Therapies Are Not Advisable (LIBERTY-PN PRIME)
NeurodermatitisUnlock trial analytics
PHASE3COMPLETED
Dupilumab for the Treatment of Chronic Spontaneous Urticaria in Patients Who Remain Symptomatic Despite the Use of H1 Antihistamine and Who Are naïve to, Intolerant of, or Incomplete Responders to Omalizumab (LIBERTY-CSU CUPID)
Chronic Spontaneous UrticariaUnlock trial analytics
PHASE3COMPLETED
Pivotal Study to Assess the Efficacy, Safety and Tolerability of Dupilumab in Patients With Moderate-to-severe COPD With Type 2 Inflammation
Chronic Obstructive Pulmonary DiseaseUnlock trial analytics
PHASE3COMPLETED
A Controlled Clinical Study of Dupilumab in Patients With Bilateral Nasal Polyps
Chronic Rhinosinusitis Phenotype With Nasal Polyps (CRSwNP)Unlock trial analytics
PHASE3COMPLETED
Controlled Clinical Study of Dupilumab in Patients With Nasal Polyps
Chronic Rhinosinusitis Phenotype With Nasal Polyps (CRSwNP)Unlock trial analytics

Study Endpoints

Primary Endpoints

Proportion of participants with Eczema Area and Severity Index (EASI)-75 (≥75% improvement from baseline EASI)
At Week 16

The EASI is a composite index with scores ranging from 0 to 72.Higher scores indicates worse condition

Percentage of Participants With Negative Ice Cube Provocation Test at Week 24
Week 24

The ice cube provocation test is the most frequently used provocation method for cold urticaria (ColdU). A negative ice cube provocation test was defined as the absence of confluent hives/wheal at the entire skin site of exposure after ice cube provocation test. Ice cube was applied on forearm skin for 5 minutes. Provocation test reading time was 10 minutes after removal of ice cube.

Change From Baseline to Week 52 in Opacification of Sinuses Assessed by CT Scan Using the LMK Score
Baseline (Day 1) and Week 52

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.

Annualized Rate of Moderate or Severe Chronic Obstructive Pulmonary Disease (COPD) Exacerbations Over the 52-week Treatment Period
Baseline (Day 1) to Week 52

Moderate exacerbations were recorded by the Investigator and defined as acute exacerbation of COPD (AECOPD) event that required either systemic corticosteroids (such as intramuscular, intravenous, or oral) and/or antibiotics. Severe exacerbations were also recorded by the Investigator and defined as AECOPD event that required hospitalization or observation for \>24 hours in an emergency department/urgent care facility or resulted in death. For both moderate and severe events to be counted as separate events, they were separated by at least 14 days. Annualized event rate was the total number of events that occurred during the 52-week treatment period divided by the total number of participant-years followed in the 52-week treatment period.

Percentage of Participants With Greater Than or Equal to (>=) 4 Points Improvement (Reduction) From Baseline in Worst-Itch Numeric Rating Scale (WI-NRS) Scores at Week 12
Baseline, Week 12

WI-NRS is a validated measure of itch severity. Participants were asked daily to rate the intensity of their worst pruritus (itch) over the past 24 hours, using a 11-point scale ranging from 0 (no itch) to 10 (worst imaginable itch). Higher scores indicated more severity. Percentage of participants with \>=4 points improvement (reduction) from baseline in WI-NRS scores at Week 12 is reported in this outcome measure.

Percentage of Participants With Improvement (Reduction) in Worst Itch Numeric Rating Scale (WI-NRS) Scores by Greater Than or Equal to (>=) 4 Points From Baseline to Week 24
Baseline, Week 24

WI-NRS is a validated measure of itch severity. Participants were asked daily to rate the intensity of their worst pruritus (itch) over the past 24 hours, using a 11-point scale ranging from 0 (no itch) to 10 (worst imaginable itch). Higher scores indicated more severity. Percentage of participants with improvement (reduction) in WI-NRS scores by \>=4 points from Baseline to Week 24 is reported in this outcome measure.

Change From Baseline in Weekly Itch Severity Score at Week 24
Baseline (Day 1) and Week 24

ISS was recorded in e-diary. The ISS represents severity of itch on a scale ranging from 0 (none) to 3 (intense). The ISS7 score was the sum of daily ISS scores recorded by a participant at the same time each day over 7 days with an overall scale of 0 (no impact) to 21 (severe impact). Higher scores indicated greater intensity of itch. Least squares (LS) mean is presented. Baseline was defined as the sum of daily scores obtained for 7 days prior to randomization.

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

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.

Change From Baseline at Week 24 in Nasal Polyp Score
Baseline, Week 24

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.

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
Baseline (Day 1) and Week 24

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.

Secondary Endpoints

Percent change in EASI score
From baseline to week 16
Percent change in weekly average of daily worst itch numerical rating scale (NRS) for participants aged ≥6 years to <12 years old
From baseline to week 16
Proportion of participants with Investigator's Global Assessment (IGA) 0 or 1
At Week 16
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
DupilumabEXPERIMENTALDouble dose on day1 and followed by single dose every 2 weeks or single dose every 4 weeks
PlaceboPLACEBO_COMPARATORDouble dose on day1 and followed by single dose every 2 weeks or single dose every 4 weeks
Matched PlaceboPLACEBO_COMPARATORPlacebo, on top of regular/as needed non-sedating H1-antihistamine
Matching placeboPLACEBO_COMPARATORPlacebo administered every 2 or 4 weeks based on weights
Dupilumab 300 mg Q2WEXPERIMENTALParticipants received dupilumab at a loading dose of 600 mg, SC on Day 1 followed by dupilumab 300 mg q2w for 24 weeks added to background therapy of TCS/TCI at stable dose.
Study A DupilumabEXPERIMENTALParticipants who were omalizumab naïve received dupilumab for 24 weeks as follows: * 300 milligrams (mg) SC injection every 2 weeks (q2w) for adults and those adolescents who weighed \>=60 kilograms (kg) at screening starting from Week 2 following a loading dose of 600 mg (2×300 mg injections) on Day 1, * 200 mg SC injection q2w for adolescents who weighed \<60 kg and children (\>=6 to \<12 years of age) who weighed \>=30 kg at screening starting from Week 2 following a loading dose of 400 mg (2×200 mg injections) on Day 1 and * 300 mg SC injection every 4 weeks (q4w) for children (\>=6 to \<12 years of age) who weighed \<30 kg and \>=15 kg at screening starting from Week 4 following a loading dose of 600 mg (2×300 mg injections) on Day 1.
Study A PlaceboPLACEBO_COMPARATORParticipants who were omalizumab naïve received placebo matched to dupilumab as subcutaneous (SC) injection including loading dose from Day 1 up to 24 weeks.
Study B DupilumabEXPERIMENTALParticipants who were intolerant or incomplete responders to omalizumab received dupilumab for 24 weeks as follows: * 300 mg SC injection q2w for adults and those adolescents weighing \>=60 kg at screening starting from Week 2 following a loading dose of 600 mg (2×300 mg injections) on Day 1 or * 200 mg SC injection q2w for adolescents weighing \<60 kg at screening starting from Week 2 following a loading dose of 400 mg (2×200 mg injections) on Day 1.
Study B PlaceboPLACEBO_COMPARATORParticipants who were intolerant or incomplete responders to omalizumab received placebo matched to dupilumab as SC injection including loading dose from Day 1 up to 24 weeks.
Study C DupilumabEXPERIMENTALParticipants who were omalizumab naïve received dupilumab for 24 weeks as follows: * 300 mg SC injection q2w for adults and those adolescents who weighed \>=60 kg at screening starting from Week 2 following a loading dose of 600 mg (2×300 mg injections) on Day 1, * 200 mg SC injection q2w for adolescents who weighed \<60 kg and children (\>=6 to \<12 years of age) who weighed \>=30 kg at screening starting from Week 2 following a loading dose of 400 mg (2×200 mg injections) on Day 1 and * 300 mg SC injection q4w for children (\>=6 to \<12 years of age) who weighed \<30 kg and \>=15 kg at screening starting from Week 4 following a loading dose of 600 mg (2×300 mg injections) on Day 1.
Study C PlaceboPLACEBO_COMPARATORParticipants who were omalizumab naïve received placebo matched to dupilumab as SC injection including loading dose from Day 1 up to 24 weeks.
Dupilumab 300 mgEXPERIMENTALDupilumab 300 mg SC injection q2w from Day 1 of Week 0 up to Week 24 added to background therapy of intranasal MFNS at stable dose.
Dupilumab 300 mg q2w then q4wEXPERIMENTALDupilumab 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.
Part A and B: DupilumabEXPERIMENTALParticipants received dupilumab 300 milligrams (mg) via SC injection q2w for up to 53.1 weeks.
Part A and B: Matching placeboPLACEBO_COMPARATORParticipants received matching placebo via SC injection q2w for up to 53.2 weeks.

Interventions

NameTypeDescription
PlaceboDRUGPharmaceutical form: solution for injection Route of administration: subcutaneous (SC)
Dupilumab SAR231893DRUGPharmaceutical form: solution for injection Route of administration: subcutaneous (SC)
Non sedating H1-antihistamineDRUGPharmaceutical form: Tablet Route of administration: Oral
Inhaled CorticosteroidDRUGPharmaceutical form: Inhaled Powder Route of administration: Oral inhalation
Inhaled Long-Acting Beta AgonistDRUGPharmaceutical form: Inhaled Powder Route of administration: Oral inhalation
Inhaled Long-Acting Muscarinic AntagonistDRUGPharmaceutical form: Inhaled Powder Route of administration: Oral inhalation
MoisturizersDRUGPharmaceutical form: Route of administration: Topical
Low to medium potent topical corticosteroidsDRUGPharmaceutical form: Route of administration: Topical
Topical calcineurin inhibitorsDRUGPharmaceutical form: Route of administration: Topical
Dupilumab SAR231893 (REGN668)DRUGPharmaceutical form: Solution Route of administration: Subcutaneous
Mometasone furoate 50 microgramsDRUGPharmaceutical form: Suspension (Nasal spray) Route of administration: Intranasal
Mometasone furoate nasal sprayDRUGPharmaceutical form: Suspension Route of administration: Intranasal
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Eligibility Criteria

Age Range6 Months to 17 Years
SexALL
Healthy VolunteersNo
Study Sites19

Inclusion criteria : Japanese and ≥6 months to \<18 years of age, at the time of signing the informed consent and/or assent. Diagnosis of AD according to the American Academy of Dermatology consensus criteria at screening visit. Chronic AD diagnosed at least 1 year prior to the screening visit (f...

Countries:JapanUnited StatesArgentinaCanadaGermanyChinaIndiaIsraelSaudi ArabiaTurkey (Türkiye)AustraliaBelgiumBrazilBulgariaChileColombiaCzechiaFranceGreeceHungaryLatviaLithuaniaMexicoNetherlandsPeruPolandPortugalRomaniaRussiaSerbiaSlovakiaSouth AfricaSpainUkraineUnited KingdomItalySouth KoreaTaiwanDenmarkFinlandSweden
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Recent Changes (Last 90 Days)

MEDIUMAug 30, 2026NCT04678856TRIAL_REMOVED: changed
MEDIUMAug 30, 2026NCT04678856TRIAL_REMOVED: changed
MEDIUMAug 30, 2026NCT04678856TRIAL_REMOVED: changed

Frequently asked questions about Dupilumab SAR231893

What is Dupilumab SAR231893 used for?

Dupilumab SAR231893 is an investigational drug being studied for allergic fungal rhinosinusitis, chronic rhinosinusitis with nasal polyps (CRSwNP), cold urticaria, atopic dermatitis, chronic spontaneous urticaria, and chronic obstructive pulmonary disease. It is in Phase 3 clinical development for these respiratory and inflammatory conditions.

Who makes Dupilumab SAR231893?

Dupilumab SAR231893 is being developed by Sanofi, a biopharmaceutical company traded on the stock exchange under the ticker symbol SNY. The drug is currently in Phase 3 clinical trials for multiple indications including chronic rhinosinusitis with nasal polyps and chronic spontaneous urticaria.

What phase is Dupilumab SAR231893 in?

Dupilumab SAR231893 is in Phase 3 clinical development. It has received FDA designations including Priority Review and Orphan Drug designation. The drug is investigational and not yet approved, with completed Phase 3 trials in chronic rhinosinusitis with nasal polyps and chronic spontaneous urticaria.

What clinical trials is Dupilumab SAR231893 in?

Dupilumab SAR231893 has completed three Phase 3 trials: NCT02898454 and NCT02912468 for chronic rhinosinusitis with nasal polyps, and NCT04180488 for chronic spontaneous urticaria. These trials enrolled a total of 1,874 participants across multiple countries including the United States, Japan, and European nations.

Is Dupilumab SAR231893 the same as SAR231893?

Yes, Dupilumab SAR231893 is also known as SAR231893. The drug is being developed by Sanofi and is in Phase 3 clinical trials for conditions such as chronic rhinosinusitis with nasal polyps and chronic spontaneous urticaria. It has received FDA Priority Review and Orphan Drug designations.