Pharyngitis Clinical Trial
Official title:
Efficacy and Tolerability of Ambroxol Lozenge 20 mg in Relieving Pain of Sore Throat in Patients With Acute Viral Pharyngitis-A Randomised, Double-blind,Placebo- and Active-controlled Parallel Group Study
The purpose of this trial is to investigate efficacy and tolerability of lozenges containing 20 mg a mbroxol hydrochloride (Mucoangin?) relative to lozenges containing placebo and lozenges containing 3 mg benzocaine in relieving pain of sore throat in patients suffering from acute viral pharyngitis.
This is a randomised, double-blind, placebo- and active-controlled parallel group study in
adult pat ients, suffering from acute viral pharyngitis and throat pain of at least moderate
intensity.
The whole study will last for up to 4 days, on each of test days patients will take one
lozenge cont aining Ambroxol hydrochlorid 20 mg/ or placebo/ or benzocaine lozenge 3 mg up to
6 lozenges per day.
Using Patient Diaries the assessment of tolerability and efficacy by the patient will be
obtained.
Study Hypothesis:
The primary hypothesis to be tested is the test of superiority of ambroxol 20 mg in
comparison to placebo. If and only if the corresponding test of superiority to placebo is
statistically significant, the hypothesis of non-inferiority of am broxol 20 mg in comparison
to benzocaine 3 mg will be tested.
Comparison(s):
For the primary comparison the placebo lozenges will be used, for the secondary comparison
the benzocaine 3 mg lozenges will be used.
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