Electro-Magnetic Convulsive Therapies for Depression: a Non-inferiority Study

Inclusion Criteria: * Major Depressive Disorder or Bipolar Depression in accordance to the Diagnostic and Statistical Manual (DSM) criteria * Score equal to or great than 17 points on the Hamilton Depression Rating Scale * Treatment-resistant depression, defined as insufficient relief of symptoms after two different first line treatments using therapeutic doses and for four to six weeks * Adequate health and clinical conditions, as assessed by an anaesthesiologist and a psychiatrist Exclusion Criteria: * Pregnancy * Other psychiatric conditions such as Schizophrenia, Schizoaffective Disorder, Substance Abuse, Borderline Personality Disorder, PTSD, or Intellectual Deficiency * Depressive symptoms due to a clinical condition * Any clinical or neurological conditions without proper management * ECT or any other neuromodulation treatment on the last six months * Inability to consent