Efficacy and Safety of Depemokimab Monotherapy Without Concomitant Use of Intranasal Corticosteroids (INCS) in Japanese Participants With Chronic Rhinosinusitis With Nasal Polyps (CRSwNP)

ConditionNasal Polyps
Trial statusRecruiting
Trial phasePhase 4
Trial typeInterventional
Biological sexAll
Age18+
SponsorGlaxoSmithKline

About this trial

This study will evaluate the efficacy and safety of depemokimab (GSK3511294) without concomitant use of Intranasal corticosteroids (INCS) in participants with Chronic rhinosinusitis with nasal polyps (CRSwNP).

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

18 years of age and older inclusive, at the time of signing the informed consent

Endoscopic bilateral NP score of at least 5 out of a maximum score of 8 (with a minimum score of 2 in each nasal cavity) assessed by the investigator

Participants who have had previous nasal surgery for the removal of nasal polyps, have used at least three consecutive days of systemic corticosteroids in the previous 2 years for the treatment of nasal polyps, or are medically unsuitable or intolerant to systemic corticosteroid

Participants presenting with severe nasal polyp symptoms defined as symptoms of nasal congestion/blockade/obstruction with moderate or severe severity and loss of smell or rhinorrhoea (runny nose) based on clinical assessment by the investigator

Disqualifiers

As a result of medical interview, physical examination, or screening investigation the physician responsible considers the participant unfit for the study

Cystic fibrosis

Antrochoanal polyps

Nasal cavity tumor (malignant or benign)

Trial design

Design model

Single group

Treatments tested in this trial

  • Depemokimab

    Biological/Vaccine

    Participants will receive depemokimab.

Treatment groups

28 Participants
are divided into 1 treatment group
Group A: Depemokimab + SoCExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

Percentage of Participants Achieving a One-point or Greater Decrease from Baseline in Total Endoscopic Nasal Polyp (NP) Score Without First Having Nasal Surgery (Actual) or Disease-Modulating Medication for CRSwNP

The total endoscopic NP score will evaluate the size and extent of nasal polyps via endoscopy. The assessments will be performed using centrally reviewed video recordings of nasal endoscopy. The right and left nostrils will be scored from 0 to 4 (0 = No polyps; 1 = Small polyps in the middle meatus not reaching below the inferior border of the middle concha; 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 concha; and 4 = Large polyps causing complete obstruction of the inferior meatus). The scores will be graded based on NP size and will be recorded as the sum of the right and left nostril scores, ranging from 0 (no polyps) to 8 (large polyps), calculated by summing the scores \[0 to 4\] in each nostril, with higher scores indicating worse status.

Time frame
At Week 52

Secondary outcomes

1

Change from Baseline in Total Endoscopic NP Score

The total endoscopic NP score will evaluate the size and extent of nasal polyps via endoscopy. The assessments will be performed using centrally reviewed video recordings of nasal endoscopy. The right and left nostrils will be scored from 0 to 4 (0 = No polyps; 1 = Small polyps in the middle meatus not reaching below the inferior border of the middle concha; 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 concha; and 4 = Large polyps causing complete obstruction of the inferior meatus). The scores will be graded based on NP size and will be recorded as the sum of the right and left nostril scores, ranging from 0 (no polyps) to 8 (large polyps), calculated by summing the scores \[0 to 4\] in each nostril, with higher scores indicating worse status.

Time frame
Baseline (Day 1) and Week 52
2

Change from Baseline in Mean Nasal Obstruction Score Using Verbal Response Scale (VRS)

Participants will use a VRS to rate nasal obstruction severity, with scores to be averaged over the specified period to assess treatment impact on nasal obstruction symptoms. Participants will be asked to indicate the severity of nasal obstruction at its worst over the last 24 hours using a 4-point VRS, with options of no symptoms, mild symptoms, moderate symptoms, and severe symptoms. This will be scored on a scale ranging from 0 (no symptoms) to 3 (severe symptoms), with higher scores indicating worse status. The average of daily scores in 4-weekly intervals will be calculated, and data will be presented for Weeks 49-52.

Time frame
Baseline (Day 1) and from Week 49 through to Week 52
3

Change from Baseline in Mean Symptom Score for Rhinorrhoea (Runny Nose) Using VRS

Participants will be asked to indicate the severity of rhinorrhoea (runny nose) at its worst over the last 24 hours using a 4-point VRS, with options of no symptoms, mild symptoms, moderate symptoms, and severe symptoms. This will be scored on a scale ranging from 0 (no symptoms) to 3 (severe symptoms), with higher scores indicating worse status. The average of daily scores in 4-weekly intervals will be calculated, and data will be presented for Weeks 49-52.

Time frame
Baseline (Day 1) and from Week 49 through to Week 52
4

Change from Baseline in Mean Symptom Score for Loss of Smell Using VRS

Participants will be asked to indicate the severity of loss of smell at its worst over the last 24 hours using a 4-point VRS, with options of no symptoms, mild symptoms, moderate symptoms, and severe symptoms. This will be scored on a scale ranging from 0 (no symptoms) to 3 (severe symptoms), with higher scores indicating worse status. The average of daily scores in 4-weekly intervals will be calculated, and data will be presented for Weeks 49-52.

Time frame
Baseline (Day 1) and from Week 49 through to Week 52

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.