At a glance
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A Herbal Formula (SBL) for the Treatment of Perennial Allergic Rhinitis: A Randomized, Double-blind, Placebo-controlled Clinical Trial
In Brief
A Phase 2 clinical trial evaluating Shi-Bi-Lin and Placebo for Perennial Allergic Rhinitis. Completed, enrolled 126 participants across 2 sites.
Detailed Summary
Allergic rhinitis(AR) is one of the most common allergic disorders throughout the world.The conventional therapies are effective in alleviating symptoms but the efficacy are limited and not persistent. Furthermonre, the cost and side-effect are known defects. A classical Chinese herbal formula, has been used for AR for centries. Our study purpose is to evaluate the clinical efficacy and safety of this formula verus placebo in perennial allergic rhinitis (PAR). Hypothesis: the classical herbal formula would improve the symptoms of PAR patients and change some immunological parameters in the peripheral blood when comparing with the placebo.
Study Details
Timeline
Interventions
4 weeks of treatment, dose of 1 g (two capsules), twice daily
4 weeks of colormatched placebo capsules, dose of 1 g (two capsules), twice daily