University of Sao Paulo, Brasilie

The aim of this work is to conduct a randomized, double-blind, placebo-controlled clinical trial to assess the efficacy and safety of cannabidiol (CBD - 300 mg a day) in patients infected with SARS-CoV-2. The specific objectives are to assess whether, in patients with mild and moderate forms of SARS-CoV-2, daily use of CBD 300 mg for fourteen days is capable of:

i) decrease viral load;

ii) modify inflammatory parameters, such as cytokines, measured from serum;

iii) reduce clinical and emotional symptoms through daily clinical evaluation; iv) improve sleep; v) reduce hospitalization and worsen the severity of the disease;

v) Monitor the possible adverse effects of CBD use in these patients.

The present study will be a single-center, randomized, parallel, double-blind, placebo-controlled clinical trial of CBD in patients with mild to moderate SARS-CoV-2 infection. The investigators will use random stratification by minimizing the sample to stratify all eligible patients according to gender, age, disease severity (mild or moderate) and presence of comorbidity (controlled diabetes and/or hypertension), followed by random designation (in a ratio 1: 1) in each stratum to ensure a balanced distribution of disease severity among treatment groups (CBD plus symptomatic clinical and pharmacological measures) and control (symptomatic clinical and pharmacological measures and placebo). All patients will receive the clinical and pharmacological measures standardized by the Brazilian Ministry of Health's practical guidelines for diagnosis and treatment for mild and moderate cases for SARS-CoV-2.