- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02122562
Ketamine Alcohol (in Treatment-Resistant Depression)
The Neurophysiological Effects of Intravenous Alcohol as Potential Biomarkers of Ketamine's Rapid Antidepressant Effects in Major Depressive Disorder
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Objective:
Glutamate-based medications including the glutamate modulator ketamine result in rapid, robust and sustained (typically up to one week) antidepressant effects in randomized controlled trials in treatment-refractory unipolar and bipolar depression. Previous work by the investigators' group has demonstrated that a family history of alcohol dependence predicts a more robust antidepressant response to ketamine in both treatment-resistant unipolar and bipolar depression.
Recently-detoxified alcoholics and affected first-degree relatives display blunted psychotomimetic, cognitive and other neuropsychiatric effects when administered a subanesthetic dose of ketamine. A family history of alcoholism also predicts differential response to intravenous alcohol. Based on the prior post hoc results, the investigators seek to prospectively demonstrate that a family history of an alcohol use disorder predicts a more robust antidepressant response to ketamine. The research team will also explore potential biomarkers of ketamine's antidepressant effects in treatment-refractory depressed patients at greater risk of developing an alcohol use disorder, using physiological and neurochemical responses to alcohol.
Study Population:
21-65 year old TRD without psychotic features patients in a current major depressive episode of at least moderate severity will be recruited and enrolled in this study. All subjects must not have a lifetime substance use disorder (except nicotine or caffeine), no lifetime history of an alcohol use disorder and socially drink. All subjects must be psychotropic medication-free for at least two weeks prior to the first alcohol infusion. The targeted number of completers is 50 depressed subjects (60 signing consent to account for attrition): 25 FHP subjects [as defined by either one first degree relative or two second-degree relatives with an alcohol user disorder on the Family Interview for Genetics Studies (FIGS) and Family Tree Questionnaire (FTQ)] and 25 FHN negative subjects.
Design:
This study is a now two-site, open-label protocol in psychotropic medication-free depressed subjects. This protocol consists of two phases. Phase I consists of a medication taper (if needed) and at least two week drug-free period. Phase II has three subphases: Subphase IIA (alcohol clamp infusion #1 with neurophysiological assessments), Subphase IIB (alcohol clamp infusion #2 during 7T-MRI) and Subphase IIC (subanesthetic/antidepressant dose ketamine infusion during 7T-MRI).
Outcome Measures:
The primary hypothesis/outcome measure will be mean change in MADRS total score from the pre-ketamine infusion (baseline) to 7 days post-infusion between the FHP and FHN groups. Other exploratory measures include neurophysiological responses to intravenous alcohol, glutamate) alterations during intravenous alcohol infusion and ketamine infusions, and rs-fMRI as a function of family history status.
Study Type
Enrollment (Estimated)
Phase
- Phase 2
Contacts and Locations
Study Contact
- Name: Mark J Niciu, M.D. Ph.D.
- Phone Number: (319)-594-8687
- Email: mark-niciu@uiowa.edu
Study Contact Backup
- Name: Emerson Buse, B.A.
- Phone Number: (319)-353-8536
- Email: emerson-buse@uiowa.edu
Study Locations
-
-
Iowa
-
Iowa City, Iowa, United States, 52242
- Recruiting
- University of Iowa Health Care
-
Contact:
- Mark J Niciu, M.D. Ph.D.
- Phone Number: 319-356-1549
- Email: mark-niciu@uiowa.edu
-
Contact:
- Emersosn Buse, B.A.
- Phone Number: 319-353-8536
- Email: emerson-buse@uiowa.edu
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
INCLUSION CRITERIA:
- 21 to 65 years of age.
- A level of understanding sufficient to agree to all required tests and examinations, sign an informed consent document and verify understanding by a score greater than or equal to 90% on the consent quiz.
- Diagnostic and Statistical Manual-4th Edition-Text Revision (DSM-IV-TR)) diagnosis of major depressive disorder (MDD), single-episode (296.30) or recurrent (296.20) without psychotic features based on clinical assessment and confirmed by a Structured Clinical Interview for the DSM-IV- Patient Version (SCID-P). Subjects must be experiencing a current major depressive episode of at least 2 weeks duration.
- Past failure of greater than or equal to one standard antidepressant trial based on the Antidepressant Treatment History Form (ATHF).
- MADRS score greater than or equal to 20 at baseline and the day of ketamine infusion.
EXCLUSION CRITERIA:
- Inadequate knowledge of family mental and substance use history, e.g. adoption.
- Current psychotic features or prior diagnosis of a DSM-IV-TR psychotic spectrum disorder, e.g. schizophrenia, schizoaffective disorder, bipolar I disorder with psychotic features, MDD with psychotic features, or bipolar disorder, e.g. bipolar I disorder without psychotic features, bipolar II disorder and bipolar disorder not otherwise specified (NOS).
- Current/active DSM-IV-TR drug or alcohol use disorder (except for caffeine or nicotine dependence), currently seeking help for alcohol problems, abstinent with a history of an alcohol use disorder, non-drinkers (no alcohol in the past year), or a history of alcohol-induced flushing reactions.
- Pregnant or nursing women or women of child bearing potential not using at least one medically accepted means of contraception (to include oral, injectable, or implant birth control, condom or diaphragm with spermicide, intrauterine devices (IUD), tubal ligation, abstinence or partner with vasectomy).
- Serious, unstable medical conditions/problems including hepatic, renal, gastroenterologic, respiratory, cardiovascular, endocrinologic, neurologic, immunologic, or hematologic disease, e.g. uncontrolled asthma, uncontrolled hyper/hypothyroidism or active cancer.
- Presence of any medical illness likely to alter brain morphology and/or physiology (e.g., hypertension, diabetes) even if controlled by medications.
- Clinically significant abnormal laboratory tests.
- Subjects with one or more seizures without clear and resolved etiology and head injury with loss of consciousness for > 5 minutes or requiring hospitalization.
- Treatment with psychiatric medications, e.g. selective serotonin reuptake inhibitors, serotonin norepinephrine reuptake inhibitors, benzodiazepines and antipsychotics, at least two weeks of study phase II.
- Treatment with fluoxetine within 5 weeks of study phase II.
- Treatment with device-based treatment for depression, e.g. electroconvulsive therapy (ECT), transcranial magnetic stimulation (TMS) and vagal nerve stimulation (VNS), within 4 weeks of study phase II.
- Lifetime history of deep brain stimulation.
- Treatment with any disallowed concomitant medications.
- Positive HIV test
- Presence of ferromagnetic implants, e.g, heart pacemaker or aneurysm clip, or other contraindications to magnetic resonance imaging (MRI), e.g. claustrophobia or hearing loss.
- Clinically-significant anatomical brain abnormalities detected on routine brain MRI.
- Subjects who, in the investigator's judgment, pose a current serious suicidal or homicidal risk, or who have a MADRS item 10 score of greater than or equal to 4.
- A current NIMH employee/staff or their immediate family member (N.B. former exclusion criteria likely to be no longer relevant at the University of Iowa Health Care).
- Currently engaged in an evidence-based structured psychotherapy for mood and/or anxiety disorders, e.g. cognitive-behavioral therapy (CBT) or interpersonal psychotherapy (IPT).
Additionally, the investigators may exclude or terminate any patient for clinical reasons.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Non-Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Montgomery-Åsberg Depression Rating Scale (MADRS)
Time Frame: Pre-ketamine (baseline) to one week post-ketamine infusion
|
The MADRS contains 10 items, and each item is scored 0-6.
These item scores are summed to create a scale score; thus, scale scores range from 0 to 60.
A scale score of 0 indicates the absence of depressive symptoms, while a score of 60 indicates severe depression.
The primary outcome is the mean change in total MADRS score.
A decrease in the mean MADRS score indicates a decrease (or improvement) in depressive symptoms, whereas an increase in the mean MADRS score indicates an increase (or worsening) in depressive symptoms.
|
Pre-ketamine (baseline) to one week post-ketamine infusion
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Biphasic Alcohol Effects Scale (BAES)
Time Frame: Prior to and during first alcohol infusion
|
The BAES is a self-reported rating scale that consists of 14 items that comprise two subscales: stimulant and sedative effects.
The items from each subscale are summed to create the subscale score.
Subscale scores range from 0 to 70, with 0 indicating a sober state and 70 indicating a state of severe intoxication.
|
Prior to and during first alcohol infusion
|
Drug Effects Questionnaire (DEQ)
Time Frame: Prior to and during first alcohol infusion
|
DEQ is a measure of alcohol's effects and the desire to consume more alcohol.
The DEQ consists of 4 subscales: Feel (the effects), Like (the effects), High (from drug), and Want More (of drug), all of which are on a 0 to 100 scale, where 0 = not at all, 50 = neutral, and 100 = very much/a lot.
|
Prior to and during first alcohol infusion
|
Profile of Mood States (POMS)
Time Frame: Prior to and during first alcohol infusion
|
POMS assesses transitory changes in mood.
It consists of 65 adjectives, rating of 6 domains (tension-anxiety, depression-dejection, anger-hostility, fatigue-inertia, vigor-activity and confusion-bewilderment) on an escalating 5-point scale (0=not at all; 1=a little; 2=moderately; 3-quite a bit; 4=extremely).
Item scores are summed to create a scale score, and subscale scores are added to create a measure of total mood disturbance.
A score of 0 indicates absence of mood disturbance while higher scores indicate greater mood disturbances.
|
Prior to and during first alcohol infusion
|
Number of Drinks Questionnaire (NODQ)
Time Frame: Prior to and during first alcohol infusion
|
NODQ is a single-item questionnaire that asks the subject how many drinks it feels like they have consumed at a given time point.
|
Prior to and during first alcohol infusion
|
Self Rating of the Effects of Alcohol (SRE) scale
Time Frame: Prior to and during first alcohol infusion
|
SRE is 12-item instrument used to retrospectively assess the number of drinks it takes to experience physiological effects from alcohol.
This is recorded for 3 periods in the individual's lifetime, i.e. the first 5 times that the individual drank, during a regular drinking period and during the period of heaviest drinking.
|
Prior to and during first alcohol infusion
|
Heart Rate Variability
Time Frame: Prior to and during first alcohol infusion
|
This will be recorded using a heart rate monitor placed on the chest at the start of the study session.
|
Prior to and during first alcohol infusion
|
Grooved Pegboard (GPB)
Time Frame: Prior to and during first alcohol infusion
|
GPB performance has been to assess fine motor and manipulative dexterity.
The device consists of 25 holes with randomly positioned slots.
The pegs (which have a key along one side) must be rotated to match the hole before insertion.
The participant will be asked to insert the pegs into each hole with being timed to completion and number of drops measured.
|
Prior to and during first alcohol infusion
|
Body Sway
Time Frame: Prior to and during first alcohol infusion
|
Two minutes eyes-open and two minutes eyes-closed body weight distribution will be measured using a Wii balance board.
|
Prior to and during first alcohol infusion
|
Balloon Analogue Risk Task (BART)
Time Frame: Prior to and during first alcohol infusion
|
BART is a computer-based task that measures behavioral disinhibition and risk-taking.
Subjects will click a mouse to pump up a virtual balloon on the computer screen.
The bigger the subject pumps up the balloon, the more points he or she could win; however, if the balloon pops before the subject stops pumping the balloon and collects his or her winnings, they will lose the virtual money earned.
There are 20 trials in each task run.
A greater number of pumps indicates increased behavioral disinhibition.
Greater pumps during the alcohol clamp in comparison to before alcohol infusion indicates increasing disinhibition in response to alcohol.
|
Prior to and during first alcohol infusion
|
Risk Taking Task
Time Frame: Prior to and during first alcohol infusion
|
The Risk Taking Task is computer-based task in which subjects have the option of pressing a button to choose a safe but small reward or a greater reward that may result in either a win or a loss.
Increased incidence of selecting the riskier reward at baseline indicates greater impulsivity.
Greater selection of riskier rewards during the alcohol clamp in comparison to baseline indicates increasing disinhibition in response to alcohol.
|
Prior to and during first alcohol infusion
|
Concentration of Glutamate and Other Neurometabolites
Time Frame: Prior to and during second alcohol and ketamine infusions
|
High-magnetic field strength (7T) proton magnetic resonance spectroscopy (1H-MRS) detectable glutamate and other neurometabolites, e.g.
N-acetylaspartate and creatine
|
Prior to and during second alcohol and ketamine infusions
|
Resting State Functional Connectivity
Time Frame: Prior to and during second alcohol and ketamine infusions
|
Task-free ("resting state") functional magnetic resonance imaging (rs-FMRI) to detect changes in blood oxygen-level dependent (BOLD) signal
|
Prior to and during second alcohol and ketamine infusions
|
Hamilton Depression Rating Scale (HDRS)
Time Frame: Pre-ketamine (baseline) to one week post-ketamine infusion
|
The HDRS is a clinician-administered depression rating scale that contains 21 items.
The first 17 items are summed to create a total scale score.
Score ranges indicate depression severity: 0-7 indicates the absence of depression, 8-13 indicates mild depression, 14-18 indicates moderate depression, 19-22 indicates severe depression, and >22 indicates very severe depression.
|
Pre-ketamine (baseline) to one week post-ketamine infusion
|
Beck Depression Inventory (BDI)
Time Frame: Pre-ketamine (baseline) to one week post-ketamine infusion
|
The BDI is a self-administered 21-item measure of depression severity.
Each item is scored (in increasing severity) on a scale from 0-3.
Total scores range from 0-63: 0-9 indicates no depression, 10-18 indicates mild depression, 19-29 indicates moderate depression, >29 indicates severe depression.
|
Pre-ketamine (baseline) to one week post-ketamine infusion
|
Hamilton Psychiatric Rating Scale for Anxiety (HAM-A)
Time Frame: Pre-ketamine (baseline) to one week post-ketamine infusion
|
The HAM-A is a clinician-administered scale of anxiety severity that comprises 14 items rated on a scale of 0-4.
The HAM-A total score is the sum of 14 items with a score range from 0-56, with lower scores indicating low levels of anxiety and higher scores indicating greater anxiety severity.
|
Pre-ketamine (baseline) to one week post-ketamine infusion
|
Young Mania Rating Scale (YMRS)
Time Frame: Pre-ketamine (baseline) to one week post-ketamine infusion
|
The YMRS scale is an 11-item clinician-administered rating scale to assess hypo/manic symptoms.
Items 5, 6, 8, and 9 (irritability, speech, content and disruptive-aggressive behavior) are rated on a scale from 0 (symptom not present) to 8 (symptom extremely severe).
The remaining items are rated on a scale from 0 (symptom not present) to 4 (symptom extremely severe).
Items 5, 6, 8, and 9 are given twice the weight of the remaining 7 items.
The YMRS total score ranges from 0 to 60. Lower scores indicate absence of manic-like symptoms while higher scores indicate increasingly severe manic-like symptoms.
|
Pre-ketamine (baseline) to one week post-ketamine infusion
|
Snaith-Hamilton Pleasure Scale (SHAPS)
Time Frame: Pre-ketamine (baseline) to one week post-ketamine infusion
|
The SHAPS scale is a 14-item self-reported instrument to measure anhedonia.
Scale scores are created by summing each item.
Higher scale scores indicate more anhedonia, and lower scale scores indicate increased hedonic value.
|
Pre-ketamine (baseline) to one week post-ketamine infusion
|
Temporal Experience of Pleasure Scale (TEPS)
Time Frame: Pre-ketamine (baseline) to one week post-ketamine infusion
|
The TEPS scale is an 18-item self-reported questionnaire that measures pleasure associated with the consumption and anticipation of rewards.
Lower scores indicate less pleasure while higher scores indicate greater hedonic value.
|
Pre-ketamine (baseline) to one week post-ketamine infusion
|
Scale for Suicidal Ideation (SSI)
Time Frame: Pre-ketamine (baseline) to one week post-ketamine infusion
|
The SSI is a 19-item clinician-administered instrument designed to quantify the intensity of current conscious suicidal ideation in various dimensions of self-destructive thoughts or wishes: the extent of the wish to die, the desire to make an actual suicide attempt, and details of any plans; also, internal deterrents to an active attempt, and subjective feelings of control and/or courage regarding a proposed attempt.
We will administer both the full and a short (5-item) version to assess rapid change in suicidal thinking.
Scale scores are calculated by summing item scores and range from 0-38.
Lower scores indicate less suicidal ideation and higher scores indicate escalating severity of suicidal thinking.
|
Pre-ketamine (baseline) to one week post-ketamine infusion
|
Columbia-Suicide Severity Rating Scale (C-SSRS)
Time Frame: Pre-ketamine (baseline) to one week post-ketamine infusion
|
The C-SSRS is a clinician-administered instrument designed to measures suicidal ideation/behaviors with both "Lifetime/Recent" and "Since Last Visit" versions.
There are four subscales.
Severity of ideation subscale is measured on a 5-point ordinal scale in which 1=wish to be dead, 2=nonspecific active suicidal thoughts, 3=suicidal thoughts with methods, 4=suicidal intent, and 5=suicidal intent with plan.
The intensity of ideation subscale has 5 items: frequency, duration, controllability, deterrents, and reason for ideation, which is rated on a 5 point scale.
The suicidal behavior subscale is rated on attempts, preparatory behavior, and nonsuicidal self-injury.
The lethality subscale measures lethalities of actual attempts, which is rated on a 6 point scale.
|
Pre-ketamine (baseline) to one week post-ketamine infusion
|
Alcohol Urge Questionnaire (AUQ)
Time Frame: Pre-ketamine (baseline) to one week post-ketamine infusion
|
The AUQ is an 8-item self-report scale to assess acute alcohol cravings.
It utilizes a 7 point Likert scale, and items are summed for a total scale score, where higher scores indicate greater cravings/urges to drink alcohol.
This measure will be used to assess alcohol-related expectancies with both alcohol and ketamine.
|
Pre-ketamine (baseline) to one week post-ketamine infusion
|
Obsessive Compulsive Drinking Scale (OCDS)
Time Frame: Pre-ketamine (baseline) to one week post-ketamine infusion
|
The OCDS is a self-administered instrument that consists of 14 items that has been shown to be sensitive and specific for the obsessive and compulsive characteristics of alcohol misuse: drinking-related preoccupations, urges to drink, and the ability to desist these thoughts/urges.
This measure will also be used to assess alcohol-related expectancies related to both alcohol and ketamine infusions.
Items are rated on a 5 point Likert scale.
Higher scores indicate more preoccupation, urges, or difficulty controlling urges to drink/consume alcohol.
|
Pre-ketamine (baseline) to one week post-ketamine infusion
|
Brief Psychiatric Rating Scale (BPRS)
Time Frame: Pre-ketamine (baseline) to one week post-ketamine infusion
|
The BPRS is a clinician-administered instrument with 4 key items will be used as an index of positive symptoms of schizophrenia.
These 4 key positive domains are conceptual disorganization, hallucinatory behavior, suspiciousness and unusual thought content.
3 additional BPRS items - blunted affect, emotional withdrawal and motor retardation - are selected as a measure of negative schizophrenia symptoms.
Each item is scored on a 7 point Likert scale, with 1 indicating absence of a given symptom and 7 indicating highest measured severity.
Individual item are added to form a total scale score.
|
Pre-ketamine (baseline) to one week post-ketamine infusion
|
Visual Analog Scale (VAS)
Time Frame: Pre-ketamine (baseline) to one week post-ketamine infusion
|
The VAS is a 7-item self-administered Likert-type measure with individual items scored between 0-10.
This instrument rates 7 domains: happy/euphoric, restless, sad, anxious, irritated/angry, drowsy and alert.
A score of 0 is described as "none", 1-3 is "mild", 4-6 is "moderate", 7-9 is "marked" and 10 is "extreme" for each given item.
|
Pre-ketamine (baseline) to one week post-ketamine infusion
|
Clinician-Administered Dissociative States Scale (CADSS)
Time Frame: Pre-ketamine (baseline) to one week post-ketamine infusion
|
The CADSS is a measure of perceptual, behavioral and attentional changes occurring during dissociative experiences that has been tested in healthy subjects and post-traumatic stress disorder (PTSD).
This scale involves 19 self-reported questions and 8 observer ratings scored from 0 (not at all) - 4 (extremely).
Greater scores indicate greater ketamine-induced dissociation.
|
Pre-ketamine (baseline) to one week post-ketamine infusion
|
Clinical Global Impression/Severity (CGI)
Time Frame: Pre-ketamine (baseline) to one week post-ketamine infusion
|
The CGI is a clinician-measured scale of 3 items: Severity of Illness (item 1), Global Improvement (item 2), and Efficacy Index (item 3).
Items 1 and 2 are rated on a 7-point Likert scale (1=normal, 7=among the most extremely ill patients) with a possible response of "not assessed."
Item 3 is rated on a 4-point Likert scale from "none" to "outweighs therapeutic effect."
Items 1 and 3 are assessed in relation to last clinical encounter (if possible).
|
Pre-ketamine (baseline) to one week post-ketamine infusion
|
Modified Version of the NIMH Data Safety Event Codes (NIMH-DSEC)
Time Frame: Pre-ketamine (baseline) to one week post-ketamine infusion
|
This clinician-collected form collects information over 100 symptoms/signs across multiple organ systems.
The "Specific" form is for tracking side effects that are often seen during the infusion at multiple time points.
The "Regular" form is for the baseline (-60 minutes), +230 minute post-ketamine infusion (final time point on the day of ketamine infusion) and other daily time points post-ketamine infusion.
|
Pre-ketamine (baseline) to one week post-ketamine infusion
|
The Positive and Negative Affect Schedule (PANAS)
Time Frame: Pre-ketamine (baseline) to one week post-ketamine infusion
|
The PANAS is a self-report questionnaire comprised of 2 mood scales, one that measures positive affect and one that measures negative affect.
Used as a psychometric scale, the PANAS can show relations between positive and negative affect with personality states and traits.
10 descriptors are used for each positive and negative affect scale to define their meanings.
Participants are asked to respond to a 20-item test, and each individual item is scored on a a 5-point Likert scale that ranges from very slightly or not at all (1) to extremely (5).
|
Pre-ketamine (baseline) to one week post-ketamine infusion
|
Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Mark J Niciu, M.D. Ph.D., University of Iowa Health Care (UIHC)
Publications and helpful links
General Publications
- Zarate CA Jr, Singh JB, Carlson PJ, Brutsche NE, Ameli R, Luckenbaugh DA, Charney DS, Manji HK. A randomized trial of an N-methyl-D-aspartate antagonist in treatment-resistant major depression. Arch Gen Psychiatry. 2006 Aug;63(8):856-64. doi: 10.1001/archpsyc.63.8.856.
- Berman RM, Cappiello A, Anand A, Oren DA, Heninger GR, Charney DS, Krystal JH. Antidepressant effects of ketamine in depressed patients. Biol Psychiatry. 2000 Feb 15;47(4):351-4. doi: 10.1016/s0006-3223(99)00230-9.
- Valentine GW, Mason GF, Gomez R, Fasula M, Watzl J, Pittman B, Krystal JH, Sanacora G. The antidepressant effect of ketamine is not associated with changes in occipital amino acid neurotransmitter content as measured by [(1)H]-MRS. Psychiatry Res. 2011 Feb 28;191(2):122-7. doi: 10.1016/j.pscychresns.2010.10.009. Epub 2011 Jan 12.
Study record dates
Study Major Dates
Study Start
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimated)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Behavioral Symptoms
- Mental Disorders
- Chemically-Induced Disorders
- Alcohol-Related Disorders
- Substance-Related Disorders
- Mood Disorders
- Alcoholism
- Depression
- Depressive Disorder
- Depressive Disorder, Major
- Physiological Effects of Drugs
- Neurotransmitter Agents
- Molecular Mechanisms of Pharmacological Action
- Central Nervous System Depressants
- Peripheral Nervous System Agents
- Analgesics
- Sensory System Agents
- Anesthetics, Dissociative
- Anesthetics, Intravenous
- Anesthetics, General
- Anesthetics
- Excitatory Amino Acid Antagonists
- Excitatory Amino Acid Agents
- Ketamine
Other Study ID Numbers
- 201906726
- 14-M-0085 (Other Identifier: National Institutes of Health)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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