Chinese Medicine for Treating Chronic Pharyngolaryngitis

Trial statusRecruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age18+
SponsorChinese University of Hong Kong

About this trial

A randomized, double-blinded, placebo-controlled clinical trial using a Chinese Medicine formula in treating Chronic pharyngolaryngitis. Subjects will be randomized into a treatment group or placebo group for 8 weeks, and then followed by an 8-week post-treatment visit.

Eligibility criteria

Qualifiers

18 years of age or above (Chinese subjects only);

Persistent symptoms of pharyngitis (sore throat, globus, dry throat, dry cough, throat irritation) for more than 3 weeks;

Determined to be the following Chinese medicine syndromes by Registered Chinese Medicine Practitioners (RCMPs): Wind-heat invading the upper-jiao, or phlegm heat or Yin deficiency;

Visual analog scale (VAS) score for pain ≥ 50 mm;

Disqualifiers

Known severe medical conditions, such as cardiovascular, liver or renal dysfunction, diabetes mellitus, cancers, cerebrovascular diseases, blood system diseases;

Concomitant use of steroids, nonsteroidal anti-inflammatory drugs (NSAIDs), anticoagulants, and immunotherapy within the past week;

Impaired hematological profile and liver / renal function exceed the upper limit of the reference value by 2 times;

Known Allergic rhinitis;

Trial design

Treatments tested in this trial

  • Qingyan Lihou Decoction
  • Placebo

Treatment groups

74 Participants
are divided into 2 treatment groups