IRCT20100218003361N2 IRCT 2018-12-30 Shiraz University of Medical Sciences Evaluation of Platanus orientalis L. distillate effects on allergic rhinitis The clinical efficacy of Platanus orientalis L. distillate, as nasal drop, in allergic rhinitis- a pilot, randomized, double-blind, placebo-controlled clinical trial 2018-12-19 anticipated 30 Complete https://irct.ir/trial/35498 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Used, Assignment: Parallel, Purpose: Treatment, Randomization description: Permuted block randomization method was applied. Random allocation software was used. Equal block sizes were used and based on the sample size (30) and two treatment groups, eight permuted blocks of four were produced. In this method, the number of test and control cases is equal in each block. All of the randomized permuted blocks of 4 are noted and in each step one of them is selected randomly, Blinding description: Subjects and study personnel (including principal investigator) were blinded in this study. Nasal drops in placebo and test group were prepared in identical packages (with a number based on the randomization method) by research center personnel who were not associated with the subject’s clinical management, data collection and analysis, to ensure blinding. Because of the similar packaging, placebo and test drops were not distinguishable. 0 (exploratory trials) Allergic rhinitis. Intervention 1: Intervention group: Platanus Orientalis L. distillate, prepared as nasal drop. It is applied 4 times a day for one month. Distillate is prepared in research center and is filled in the drop containers following filtration. Intervention 2: Control group: distilled water. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is Researchers have not decided about the data publication yet. They decide to publish the data as article and they would published the data which are required ethically.