Actually very few real life data are available for patients with multiple myeloma (MM), whereas they're playing a more and more important role in health care decisions. Treatments choice for medical care of patient with MM depends of their age, their general status, their eligibility to high dose treatment (autograft), and also based on cytogenetic risk (standard/high risk). Therapeutic strategies are multiple and based on drugs associations including proteasome inhibitors, immuno-modulators and monoclonal antibodies. Therapeutic medical care objective is to improve quality and response duration through more effective induction schemas, systematic consolidation for patients who have undergone high dose therapy and/or maintenance treatment, ensuring patients safety and well-being in the health care pathway. Quality of life evaluation has to take in consideration disease outcome and secondary effects impact from treatments prescribed for MM. With clinical trials, new therapeutic strategies are proposed with innovative drugs but participants are selected and do not represent all patients with MM. Therefore, there is a large gap between clinical trials and real life data. That's why the CHU Toulouse intends to set up a prospective cohort to evaluate the health care pathway of patients with MM in West-Occitanie region and studies impact of treatments prescribed on the disease and on the patients' quality of life. With this research, standard of care practices for patients with MM will be followed, prognostic scores and clinical trials results will be validated in real life, impact of outpatient support procedure will be assessed (AMA procedure) and sociodemographic/quality of life data will be available for research teams.