IRCT20100102002954N20 IRCT 2020-09-26 Shahroud University of Medical Sciences The effect of zinc sulfate on sleep quality in patients undergoing chemotherapy Effect of Zinc sulfate on sleep quality in chemotherapy patients in Imam Hossain hospital of Shahroud , a randomized clinical trial 2020-10-21 anticipated 100 Complete https://irct.ir/trial/51182 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Used, Assignment: Parallel, Purpose: Treatment, Randomization description: Patients were allocated to intervention and control groups according to random allocation table that illustrated by a statistician. Randomization was done using permuted block randomization method (Block size was 4) using blocked random allocation syntax in SPSS software. For calculation sample size was 100 and number of blocks was 25. Allocation concealment was done using closed opaque envelope. 2-3 Condition 1: End-stage renal disease. Condition 2: Nonorganic sleep disorders. Intervention 1: Intervention group: Patients in the intervention group are prescribed one 220 mg zinc sulfate tablet daily for the first month and then two zinc sulfate tablets (440 mg) daily for the second month. Intervention 2: Control group: Patients in the control group will be given one starch tablet apparently similar to a placebo daily for the first month and then two placebo tablets daily for the second month. 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 Upon completion of the study, a decision will be made on its publication.