Patients will first be screened using the G8 screening tool. If the resulting score is altered (G8 <= 14), patients will be included in the main study and randomized according to 2 modalities: Arm A / Usual care (treatment according to on-going regimens in oncology) or Arm B /Case management (assessment of the patient by the nurse and the geriatrician with interventions as prescribed by the geriatrician). The intervention will be considered effective if, at one year, compared to usual care there is a significant clinical improvement in overall survival (OS) without a significant deterioration or/and clinical improvement of at least one of the targeted quality of life (QoL) scores, without significant clinical deterioration in at least one of the targeted QoL scores and without significant difference in OS in favor of usual care.