Depression
Conditions
Brief summary
Subjects with depressive episodes will be recruited to undergo a brief 2 week course of IV infusions of ketamine in combination with cognitive behavioral therapy for 8 weeks.
Detailed description
Twelve subjects with current diagnosis of depressive episode will be recruited to undergo a brief course of 4 intravenous infusions of ketamine, given twice weekly for two weeks in combination with CBT, given twice weekly. The CBT course will be 16 total sessions (given over 8 weeks), will begin the day following the initial ketamine infusion, and will be performed by a therapist who has successfully completed extensive training at the Beck Institute for Cognitive Therapy and Research and has experience with similar studies. Homework assignments will include thought records and activity charts which are used in standard practice to facilitate CBT interventions.
Interventions
DRUGKetamine
Subjects will undergo a twice weekly two week course of IV infusions of ketamine
BEHAVIORALCognitive Behavioral Therapy (CBT)
Subjects will undergo twice weekly CBT for a total of 8 weeks
Sponsors
Yale University
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No
Inclusion criteria
* suffering from a depressive episode (DSM 5; either Major Depressive Disorder or Bipolar Disorder) and having failed one or more standard antidepressant treatments during the current episode; * Age 18-65; * Hamilton Depression Rating Scale (17-HAM-D) score of 21 or more prior to study entry.
Exclusion criteria
* Any Axis I or Axis II Disorder, which at screening is clinically predominant to their depressive episode or has been predominant to their depressive episode at any time within 6 months prior to screening; * Active suicidal thoughts with a plan; current or recent (\<6 months ago) substance use disorder; * Non-affective psychosis (such as schizophrenia or schizoaffective disorder); * Pregnancy or breastfeeding; * Inability to speak English fluently; * A clinically significant abnormality on the screening physical examination that might affect safety, study participation, or confound interpretation of study results; * A history of CBT treatment in the past 12 months; * Dementia; * Delirium; * Any other neurological or mental disease that might affect cognition or the ability to meaningfully participate in CBT. * Untreated hypertension as defined by a systolic blood pressure ≥140 mmHg or diastolic blood pressure ≥90 mmHg at screening on two of three measurements. * Recent myocardial infarction (within one year) * Syncopal event within the past year. * Congestive heart failure (CHF) New York Heart Association Criteria \>Stage 2 * Angina pectoris. * Heart rate \<50 or \>105 beats per minute at screening Females are eligible provided they meet criteria A or B below: 1. Non-childbearing potential: e.g., physiologically incapable of becoming pregnant, i.e., permanently sterilized (status post hysterectomy, bilateral tubal ligation), or is post-menopausal with her last menses at least one year prior to screening; or 2. Childbearing potential, and meets the following criteria: i. Childbearing potential, including women using any form of hormonal birth control, on hormone replacement therapy started prior to 12 months of amenorrhea, using an intrauterine device (IUD), having a monogamous relationship with a partner who has had a vasectomy, or is sexually abstinent. ii. Negative urinary pregnancy test at screening, confirmed by a negative urinary pregnancy test at enrollment prior to receiving study treatment. iii. Willing and able to continuously use one of the following methods of birth control during the course of the study, defined as those which result in a low failure rate (i.e., less than 1% per year) when used consistently and correctly: implants, injectable or patch hormonal contraception, oral contraceptives, IUD, double-barrier contraception, sexual abstinence. The form of birth control will be documented at screening and baseline.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Extinction Learning Task performance | 24 hours Post ketamine infusion | Hopkins Verbal Learning Test and extinction learning tasks will be administered both one week before and 24-hours after the first ketamine infusion and the change in scores compared. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Montgomery-Asberg Depression Rating Scale (MADRS) | 8 weeks | Change in MADRS from baseline through week eight using a random effects model |
Countries
United States
Outcome results
None listed