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acetylcysteine

Phase 3

Rhinosinusitis | Small molecule | ENT |Novartis AG|Last Updated: Nov 19, 2021

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLEDBiomarker
Total Trials1
Total Enrollment944
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT04123405Efficacy and Safety of Acetylcysteine for the Treatment of Acute Uncomplicated RhinosinusitisPHASE3 COMPLETED 944Oct 22, 2020Apr 20, 2021Nov 19, 202137 Bulgaria, Germany +2
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Study Endpoints
Primary Endpoints
Mean Change From Baseline in the Daily Major Symptom Score (MSS) Over the Entire Treatment Period, Full Analysis Set
Baseline (Day 1), Day 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 and 15

The MSS combines the 5 most relevant symptoms of rhinosinusitis based on expert clinician recommendations (rhinorrhea/ anterior discharge, postnasal drip, nasal congestion, headache, and facial pain/pressure). The patient rated the severity of each of the five symptoms of the MSS using a four-point rating scale of increasing severity (0 = none/not present, 1 = mild, 2 = moderate, 3 = severe). The MSS is then the sum of single ratings with a possible range from 0 to 15. Mean change from baseline in the daily Major Symptom Score (MSS) over the entire treatment period was calculated as the average total score from Day 2 to 15 compared to Baseline (Day 1). Negative change from baseline means improvement.

Mean Change From Baseline in the Daily Major Symptom Score (MSS) Over the Entire Treatment Period, Per-Protocol Set
Baseline (Day 1), Day 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 and 15

The MSS combines the 5 most relevant symptoms of rhinosinusitis based on expert clinician recommendations (rhinorrhea/ anterior discharge, postnasal drip, nasal congestion, headache, and facial pain/pressure). The patient rated the severity of each of the five symptoms of the MSS using a four-point rating scale of increasing severity (0 = none/not present, 1 = mild, 2 = moderate, 3 = severe). The MSS is then the sum of single ratings with a possible range from 0 to 15. Mean change from baseline in the daily Major Symptom Score (MSS) over the entire treatment period was calculated as the average total score from Day 2 to 15 compared to Baseline (Day 1). Negative change from baseline means improvement.

Secondary Endpoints
Time to Onset of Action, Full Analysis Set
Baseline (Day 1), Day 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 and 15
Time to Onset of Action, Per-Protocol Set
Baseline (Day 1), Day 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 and 15
Major Symptom Score (MSS) Development Over the Course of the Study, Full Analysis Set
Baseline (Day 1), Day 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 and 15
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Study Design & Arms
AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Group A: 600 mg acetylcysteineEXPERIMENTALone tablet test product plus three tablets placebo per day (taken as two tablets dissolved in a glass of water, twice daily)
Group B: 1200 mg acetylcysteineEXPERIMENTALtwo tablets test product plus two tablets placebo per day (taken as two tablets dissolved in a glass of water, twice daily)
Group C: 2400 mg acetylcysteineEXPERIMENTALfour tablets test product per day (taken as two tablets dissolved in a glass of water, twice daily)
Group D: PlaceboPLACEBO_COMPARATORfour tablets placebo per day (taken as two tablets dissolved in a glass of water, twice daily)
Interventions
NameTypeDescription
acetylcysteineDRUG600 mg tablet
PlaceboDRUGPlacebo to acetylcysteine
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Eligibility Criteria
Age Range14 Years — 75 Years
SexALL
Healthy VolunteersNo
Study Sites37

Inclusion Criteria: 1. Male or female subjects aged between 14 and 75 years inclusive on the date of consent 2. Diagnosis of acute, uncomplicated rhinosinusitis defined at screening visit 1 and at Visit 2 as: 1. major symptom score (MSS) assessed by the patient ≥8 and ≤12 points for the followi...

Countries:BulgariaGermanyMoldovaRussia
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Competitive Landscape -Chronic Rhinosinusitis 12 trials