The development of new drugs depends on several scientific steps, which culminate in clinical trials. The clinical trials pharmacy (CTP) is the place for receiving, preparing, storing and dispensing the investigational product or study drug. Therefore, it must have infrastructure and procedures that guarantee participant safety and quality of research data. This study aimed to systematize guidelines for CTP in Brazil. We conducted a scope review and organized the results using the Ishikawa Method (6Ms). In total, 51 publications were selected for each “M”, 39 laws, regulations or guidelines and 12 scientific articles: 25 publications for pharmaceutical services (pharmacy procedures to ensure participant safety from investigational product ordering to final disposition), 14 for Quality Indicators, 12 for Human Resources, 11 for Infrastructure, 11 for Material Resources and 5 for Investigational Product. Our results synthesize information for the organization, operation and evaluation of CTP in Brazil, emphasizes the inclusion of the pharmacist within the clinical trials context, and contributes to preparation for monitoring, auditing, and inspections conducted by regulatory agencies.