Etokimab in Adults With Chronic Rhinosinusitis With Nasal Polyps (CRSwNP)

Study Overview
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Brief Summary
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A study to evaluate the safety and efficacy of multiple doses of etokimab in adults with chronic rhinosinusitis with nasal polyps.

Detailed Description
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This study is a randomized, placebo controlled, double-blind, multi-dose study to assess the efficacy of two different dose regimens of etokimab compared to placebo in adults with moderate-to-severe chronic sinusitis with nasal polyposis (CRSwNP). During the screening period, all subjects will undergo evaluation for eligibility. A centralized reader will be used to confirm the diagnosis of CRSwNP as assessed by nasal endoscopy, computed tomography (CT) scan of sinuses, and symptom scoring to reduce the risk of interpretation variation. Participants will also be provided mometasone furoate nasal spray (MFNS) for use during the trial and are required to undergo a minimum run-in period of 20 days prior to Day 1 with approximately 80% compliance. Participants will be randomly assigned on Day 1 to one of the three treatment arms in a 1:1:1 ratio.

Official Title
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A Phase 2, Double-Blind, Placebo-Controlled, Parallel Group, Multiple Dose Study to Investigate Etokimab (ANB020) in Adult Subjects With Chronic Rhinosinusitis With Nasal Polyposis

Conditions
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Chronic Rhinosinusitis

Intervention / Treatment
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* Biological: Etokimab
* Biological: Placebo
* Drug: Mometasone Furoate Nasal Spray


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Clinically confirmed diagnosis of CRSwNP Nasal polyp score (NPS) ≥ 4 out of a maximum score for both nostrils (with at least a score of 1 for each nostril). 22 Item Sino-Nasal Outcome Test (SNOT-22) score > 15. Presence of at least two of the following symptoms prior to screening: nasal blockade/obstruction/congestion or nasal discharge (anterior/posterior nasal drip); facial pain/pressure; reduction or loss of smell Body mass index (BMI) of 18 to 42 kg/m^2 (inclusive) and total body weight > 50 kg (110 lb). BMI=weight (kg)/(height [m^2]). Exclusion Criteria: Use of investigational drugs or prohibited therapy for this study within 8 weeks before screening or 5 half-lives, whichever is longer. Have experienced severe life threatening anaphylactic reactions. Participation in any interventional study for the treatment of CRSwNP in the 3 months before screening. If female, is pregnant or lactating, or intend to become pregnant during the study period. History (or suspected history) of alcohol or substance abuse. Current smokers or former smokers with a smoking history of ≥ 10 pack years. If a patient has less than 10 pack years smoking history, he or she should have quit smoking at least 2 months before screening to enroll in the study. Note: Other protocol defined Inclusion/Exclusion criteria may apply.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 70 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Triple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Etokimab 300 mg + 150 mg Q4W<br>Participants received a 300 mg loading dose of etokimab administered by subcutaneous injection at Week 0 then 150 mg etokimab by subcutaneous injection every 4 weeks (Q4W) up to Week 12 (Weeks 4, 8, and 12). Participants also used mometasone furoate nasal spray (MFNS) of 2 actuations (50 μg/actuation) in each nostril twice daily (BID). | Biological: Etokimab<br>* Administered by subcutaneous injection<br>* Other names: ANB020;Drug: Mometasone Furoate Nasal Spray<br>* Mometasone Furoate Nasal Spray (MFNS) was used from 4 weeks prior to Day 1 (Run-in period) through the end of the study. Participants used 2 actuations (50 μg/actuation) in each nostril BID, total daily dose of 400 μg. Participants intolerant to BID intranasal corticosteroids (INCS) could use the lower dose regimen of 1 actuation in each nostril BID, total daily dose of 200 μg.<br>|
| Experimental: Etokimab 300 mg + 150 mg Q8W<br>Participants received a 300 mg loading dose of etokimab administered by subcutaneous injection at Week 0 then etokimab 150 mg by subcutaneous injection every 8 weeks (Q8W) up to Week 12 and placebo at Weeks 4 and 12. Participants also used MFNS of 2 actuations (50 μg/actuation) in each nostril BID. | Biological: Etokimab<br>* Administered by subcutaneous injection<br>* Other names: ANB020;Biological: Placebo<br>* Administered by subcutaneous injection<br>Drug: Mometasone Furoate Nasal Spray<br>* Mometasone Furoate Nasal Spray (MFNS) was used from 4 weeks prior to Day 1 (Run-in period) through the end of the study. Participants used 2 actuations (50 μg/actuation) in each nostril BID, total daily dose of 400 μg. Participants intolerant to BID intranasal corticosteroids (INCS) could use the lower dose regimen of 1 actuation in each nostril BID, total daily dose of 200 μg.<br>|
| Placebo Comparator: Placebo<br>Participants received placebo subcutaneous injection once every 4 weeks up to Week 12. Participants also used MFNS of 2 actuations (50 μg/actuation) in each nostril BID. | Biological: Placebo<br>* Administered by subcutaneous injection<br>Drug: Mometasone Furoate Nasal Spray<br>* Mometasone Furoate Nasal Spray (MFNS) was used from 4 weeks prior to Day 1 (Run-in period) through the end of the study. Participants used 2 actuations (50 μg/actuation) in each nostril BID, total daily dose of 400 μg. Participants intolerant to BID intranasal corticosteroids (INCS) could use the lower dose regimen of 1 actuation in each nostril BID, total daily dose of 200 μg.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change From Baseline in Nasal Polyp Score (NPS) to Week 16 | Nasal polyps were evaluated by nasal endoscopy using centralized imaging data assessments scored by an independent reviewer. Each nostril was scored on a scale from 0 to 4, where a score of 0 means no polyps, and a score of 4 means the presence of polyps causing complete obstruction of the inferior nasal cavity. The bilateral NPS score is the sum of the right and left nostril scores, and hence the total NPS value is between 0 and 8 (worst). A negative change from Baseline indicates improvement. | Baseline and Week 16 | 
| Change From Baseline in Sino-Nasal Outcome Test-22 (SNOT-22) Score at Week 16 | SNOT-22 is a 22-item outcome measure on a 5-category scale that assesses symptoms and social/emotional consequences of rhinosinusitis. Each item is scored from 0 (No problem at all) to 5 (Problem as bad as it can be), and the total score ranges from 0 to 110. Higher SNOT-22 scores are indicative of greater impact of rhinosinusitis on quality of life. A negative change from Baseline indicates improvement. | Baseline and Week 16 | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change From Baseline in Eosinophil Count |  | Baseline, Week 16, and Week 24 | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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ANB020, Etokimab, CRSwNP