Patients in palliative care often have infections caused by multidrug resistant bacterial such as beta-lactamase producing bacteria. In this context, we hypothesize Ertapenem subcutaneously is not inferior to the same drug intravenously for the treatment of urinary infections in patients on oncologic palliative care. A non-inferiority clinical trial would be adequate and could provide stronger evidence on the possibility of this alternative route for antibiotic therapy in urinary tract infections, with important advantages such as greater convenience of use.