1. A clinical research study in which both the researcher and the participant know which treatment or intervention is being administered, as opposed to a blinded study where this information is concealed
The open-label study allowed patients to know they were receiving the experimental drug.
O estudo aberto permitiu que os pacientes soubessem que estavam recebendo o medicamento experimental.
2. A phase of clinical trials where the treatment assignment is not hidden from either the investigator or the subject
After the double-blind phase, patients entered an open-label study to assess long-term safety.
Após a fase duplo-cega, os pacientes entraram em um estudo aberto para avaliar a segurança a longo prazo.