IRCT20131119015455N4 IRCT 2020-01-26 Esfahan University of Medical Sciences Effect of Topical Gabapentin in Itching Evaluation of the Effect of Topical Gabapentin in Itching in Patients with Macular Amyloidosis; A pilot study 2019-11-21 anticipated 40 Complete https://irct.ir/trial/43411 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Used, Assignment: Parallel, Purpose: Treatment, Randomization description: Randomization is performed using software to allocate each side of the lesion to the main drug and placebo group and the other side to the gabapentin treatment group. N/A macular amyloidosis. Intervention 1: Intervention group: One side of the lesion (left or right) on the back of each patient is randomly allocated to receive topical Gabapentin in gel based with 0.06 concentration (Temad and Farabi company) that is used as a thin layer and twice a day for 3 months. Intervention 2: Control group: The other side of the lesion (left or right) on the back of each patient is selected to receive placebo in gel based (Timad company) that is used as a thin layer and twice a day. Yes - There is a plan to make this available What will be shared: Primary outcome data can be shared. When: Starting 6 months after publication To whom: People working in academic institutions Conditions: Descriptive analysis is allowed to report on data Where to obtain: Bahareh Abtahi Skin Diseases and Leishmaniasis Research Center, Isfahan, Iran Email: bahareh.abtahi@med.mui.ac.ir How to obtain: The request is discussed in the Center Committee and after approval, the data is submitted to the applicant over a period of approximately one month. Comments: