Mifepristone Treatment for Patients With Non-psychotic Major Depressive Disorder Receiving Bilateral ECT

Patients referred to the Stanford ECT Service who provide informed consent for this study will be screened for eligibility. Day -4 to 0: Screening (visit 1) will occur three to six days prior to the first ECT treatment. Screening procedures will include: Psychiatric interviews and ratings (including MINI, Hamilton Depression Rating Scale and Clinician's Global Impression) and review/retrieval of results of pre-ECT physical exam, ECG, chest x-ray, laboratory evaluations (including comprehensive metabolic panel, comprehensive blood count, and urine toxicology), and vital signs from the subject's medical record. A urine pregnancy test will be included for females of childbearing potential. Concomitant medications and pre-existing health issues will be recorded. Subjects who are deemed eligible for this study will then undergo a battery of neuropsychiatric assessments and will be admitted to GCRC for collection of blood samples to measure adrenocorticotropin (ACTH) and cortisol levels. These samples will be collected hourly beginning at 1pm and ending at 4pm. Day 1: Subjects will be randomized 1:1 to receive either mifepristone 600mg or placebo each day at bedtime beginning two days prior to the first ECT treatment. Subjects will be administered study medication on Day 1 through Day 8. Day 3: Subjects will be interviewed with the Hamilton Depression Rating Scale and Clinician's Global Impression before their first ECT treatment. Day 11: (visit 2) assessments will include psychiatric ratings (including Hamilton Depression Rating Scale and Clinician's Global Impression) and a battery of neuropsychiatric assessments. Adverse events and concomitant medications will be reviewed and recorded. Subjects will be admitted to the GCRC for collection of blood samples to measure ACTH and cortisol levels. Samples will be collected hourly beginning at 1pm and ending at 4pm. Day 18: (visit 3) assessments will include psychiatric ratings (including Hamilton Depression Rating Scale and Clinician's Global Impression). Adverse events and concomitant medications will be reviewed and recorded. Clinical laboratory assessments will be completed (including a urine pregnancy test for females, comprehensive metabolic panel, comprehensive blood count, urine toxicology, and ECG.) Final visit: (visit 4) will occur 24-72 hours after the last ECT treatment. Assessments will include psychiatric ratings (including Hamilton Depression Rating Scale and Clinician's Global Impression) and a battery of neuropsychiatric assessments. Adverse events and concomitant medications will be reviewed and recorded. A urine pregnancy test will be completed for females. In addition to the ECT treatment consent, the following materials will be collected from the participant's medical record for every ECT treatment: ECT treatment orders, ECT procedure note and the results of each pre-ECT Montgomery-Asberg Depression Rating Scale (MADRS). ECT treatments at Stanford's ECT Service run every Monday, Wednesday and Friday.