Quality of life and well-being from the perspective of patients on opioid agonist maintenance treatment: study protocol for a systematic review of qualitative research and a scoping review of measures.

The findings from the reviews will contribute to obtain a genuine understanding of the perspective from users on OAMT regarding their perception of well-being and quality of life and will likely lead to greater patient centeredness when assessing such variables, which in turn may contribute to a more patient-centered care.