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Study aim
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the aim of this Study is to evaluate the therapeutic effect of melatonin in patients with COVID-19 admitted to Rasht Razi Hospital
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Design
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A phase 2/3 randomized,double blinded, controlled clinical trial with a parallel group design of 96 patients
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Settings and conduct
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96 Patients with COVID-19 admitted to Razi Hospital in Rasht with a positive RT-PCR test for SARS-CoV-2 will enter the study.32 patients will receive placebo and two groups(32 in each) will receive 6 mg and 12 mg of melatonin,per night for 5 times ,respectively.outcomes will be recorded on morning of the first (day before the intervention), fourth and sixth day. Participants , clinician, researcher, outcome assessor, analyst, and at the beginning of the study the safety monitoring committee and data except clinical pharmacist (responsible for randomization) don't know which arm the participant is assigned to and will be blind to the allocation of melatonin and placebo. Placebo tablets will be similar in shape,size and color to melatonin
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Participants/Inclusion and exclusion criteria
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Patients with moderate to severe whoes PCR test is positive for SARS-CoV will be included in the study.Inclusion Criteria for patients with moderate symptoms:evidence of lower respiratory disease( dyspnea, Chest compression و..) oxygen saturation (SpO2) between 90 to 93% and lung infiltrates<50%.
criteria for patients with sever symptoms: Dyspnea, respiratory frequency >30 breaths/min,oxygen saturation (SpO2) < 90% ,PaO2/FiO2 <300 mm Hg and lung infiltrates >50%.
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Intervention groups
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For all patients, there are standard protocols for the treatment of existing Covid 19 patients. In the placebo group, placebo tablets and in the intervention groups, 6 and 12 mg of melatonin are given as adjuvant
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Main outcome variables
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the level of CRP ESR, ICU requirement, hospitalization or death, and number of days hospitalized