NCT00088699

Brief Summary

Depressive disorders may be severe, chronic and often life-threatening illnesses. Impairment in physical and social functioning resulting from depression can be just as severe as other chronic medical illnesses. Recent preclinical and clinical studies suggest that the glutamatergic system is involved in the mechanism of action of antidepressants. This study examines whether ketamine can cause a rapid-next day antidepressant effect in patients with Major Depressive Disorder. This study was designed to address the questions: Does the NMDA antagonist ketamine produce rapid antidepressant effects in patients with treatment-resistant major depression? What are the neurobiological correlates of antidepressant response (examining multi-modal MRI, MEG, polysomnography and serum markers) Patients, ages 18 to 65 years with treatment-resistant major (unipolar) depression will in a double-blind crossover study receive either intravenous ketamine or saline solution.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
67

participants targeted

Target at P50-P75 for phase_1 depression

Timeline
Completed

Started Jul 2004

Longer than P75 for phase_1 depression

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 26, 2004

Completed
4 days until next milestone

First Submitted

Initial submission to the registry

July 30, 2004

Completed
3 days until next milestone

First Posted

Study publicly available on registry

August 2, 2004

Completed
13 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 31, 2017

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 31, 2017

Completed
1.2 years until next milestone

Results Posted

Study results publicly available

October 12, 2018

Completed
Last Updated

October 12, 2018

Status Verified

July 31, 2017

Enrollment Period

13 years

First QC Date

July 30, 2004

Results QC Date

July 30, 2018

Last Update Submit

September 12, 2018

Conditions

Keywords

DepressionNMDA AntagonistTreatment ResistantGlutamatergic SystemMajor Depression

Outcome Measures

Primary Outcomes (2)

  • MADRS Score - Baseline

    Antidepressant effects were assessed using the Montgomery-Ă…sberg Depression Rating Scale (MADRS). It is a ten-item diagnostic questionnaire which psychiatrists use to measure the severity of depressive episodes. Higher MADRS score indicates more severe depression, and each item yields a score of 0 to 6. The overall score ranges from 0 to 60.

    Baseline

  • MADRS Score - Day 1 Following Intervention

    Antidepressant effects were assessed using the Montgomery-Ă…sberg Depression Rating Scale (MADRS). It is a ten-item diagnostic questionnaire which psychiatrists use to measure the severity of depressive episodes. Higher MADRS score indicates more severe depression, and each item yields a score of 0 to 6. The overall score ranges from 0 to 60.

    Day 1

Study Arms (2)

Ketamine, Then Placebo

EXPERIMENTAL

Ketamine and placebo infusions were administered two weeks apart, with Ketamine's dose being 0.5 mg/kg.

Drug: KetamineDrug: Placebo

Placebo, Then Ketamine

EXPERIMENTAL

Placebo and Ketamine infusions were administered two weeks apart, with Ketamine's dose being 0.5 mg/kg

Drug: KetamineDrug: Placebo

Interventions

Ketamine, Then PlaceboPlacebo, Then Ketamine
Ketamine, Then PlaceboPlacebo, Then Ketamine

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Male or female subjects, 18 to 65 years of age.
  • Each subject must have a level of understanding sufficient to agree to all required tests and examinations and sign an informed consent document.
  • Subjects must fulfill DSM-IV criteria for Major Depressive Disorder (MDD) without psychotic features, based on clinical assessment and confirmed by a structured diagnostic interview, SCID-P.
  • Subjects must have an initial score of at least 20 on the MADRS at screen and at baseline of study phase I.
  • Subjects must have failed to respond in the past to an adequate dose and duration of at least one antidepressant (SSRI, bupropion, or venlafaxine) during a depressive episode
  • Current depressive episode of at least 4 weeks duration.
  • Age of onset less than 40 years of age.
  • Subjects with MDD must fulfill DSM-IV criteria for Major Depression single episode or recurrent without psychotic features based on clinical assessment and confirmed by a structured diagnostic interview (SCID-P).
  • A failed adequate trial of ECT would count as an adequate antidepressant trial.
  • In women of childbearing age, a negative pregnancy test within 24 hours of MRI.
  • Age 18-65 years.
  • Written informed consent completed.

You may not qualify if:

  • Current or past diagnosis of Schizophrenia or any other psychotic disorder as defined in the DSM-IV.
  • Subjects with a history of DSM-IV drug or alcohol dependency or abuse (except for nicotine or caffeine) within the preceding 3 months.
  • Female subjects who are either pregnant or nursing.
  • Serious, unstable illnesses including hepatic, renal, gastroenterologic, respiratory, cardiovascular (including ischemic heart disease), endocrinologic, neurologic, immunologic, or hematologic disease.
  • Subjects with uncorrected hypothyroidism or hyperthyroidism.
  • Subjects with one or more seizures without a clear and resolved etiology.
  • Treatment with a reversible MAOI within 4 weeks prior to study phase I.
  • Treatment with fluoxetine within 5 weeks prior to study phase I.
  • Treatment with any other concomitant medication not allowed (Appendix A for Substudy 2; Appendix G for Substudy 4) 14 days prior to study phase I.
  • No structured psychotherapy will be permitted during the study.
  • Current NIMH employee/staff or their immediate family member.
  • \. Previous treatment with ketamine or hypersensitivity to amantadine.
  • Subjects who currently are using drugs (except for caffeine or nicotine), must not have used illicit substances in the 2 weeks prior to screen and must have a negative alcohol and drug urine test (except for prescribed benzodiazepines) urine test at screening.
  • 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.
  • +9 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Institutes of Health Clinical Center, 9000 Rockville Pike

Bethesda, Maryland, 20892, United States

Location

Related Publications (50)

  • Nugent AC, Ballard ED, Gould TD, Park LT, Moaddel R, Brutsche NE, Zarate CA Jr. Ketamine has distinct electrophysiological and behavioral effects in depressed and healthy subjects. Mol Psychiatry. 2019 Jul;24(7):1040-1052. doi: 10.1038/s41380-018-0028-2. Epub 2018 Feb 27.

  • Evans JW, Lally N, An L, Li N, Nugent AC, Banerjee D, Snider SL, Shen J, Roiser JP, Zarate CA Jr. 7T 1H-MRS in major depressive disorder: a Ketamine Treatment Study. Neuropsychopharmacology. 2018 Aug;43(9):1908-1914. doi: 10.1038/s41386-018-0057-1. Epub 2018 Apr 5.

  • Gilbert JR, Yarrington JS, Wills KE, Nugent AC, Zarate CA. Glutamatergic Signaling Drives Ketamine-Mediated Response in Depression: Evidence from Dynamic Causal Modeling. Int J Neuropsychopharmacol. 2018 Aug 1;21(8):740-747. doi: 10.1093/ijnp/pyy041.

  • Evans JW, Szczepanik J, Brutsche N, Park LT, Nugent AC, Zarate CA Jr. Default Mode Connectivity in Major Depressive Disorder Measured Up to 10 Days After Ketamine Administration. Biol Psychiatry. 2018 Oct 15;84(8):582-590. doi: 10.1016/j.biopsych.2018.01.027. Epub 2018 Feb 15.

  • Nugent AC, Zarate CA Jr. Using Neuroimaging to Decipher the Mechanism of Action of Ketamine: A Pathway to Novel Therapeutics? Biol Psychiatry Cogn Neurosci Neuroimaging. 2017 Oct;2(7):549-551. doi: 10.1016/j.bpsc.2017.08.006. Epub 2017 Oct 5. No abstract available.

  • Kadriu B, Gold PW, Luckenbaugh DA, Lener MS, Ballard ED, Niciu MJ, Henter ID, Park LT, De Sousa RT, Yuan P, Machado-Vieira R, Zarate CA. Acute ketamine administration corrects abnormal inflammatory bone markers in major depressive disorder. Mol Psychiatry. 2018 Jul;23(7):1626-1631. doi: 10.1038/mp.2017.109. Epub 2017 May 30.

  • Kheirkhah M, Hejazi NS, Nugent AC, Gilbert JR, Leistritz L, Walter M, Duncan WC Jr, Goldman D, Zarate CA Jr. Exploring the link between waking gamma and sleep delta power in healthy volunteers and individuals with treatment-resistant depression. J Affect Disord. 2025 Sep 15;385:119448. doi: 10.1016/j.jad.2025.119448. Epub 2025 May 19.

  • Kheirkhah M, Duncan WC Jr, Yuan Q, Wang PR, Jamalabadi H, Leistritz L, Walter M, Goldman D, Zarate CA Jr, Hejazi NS. REM density predicts rapid antidepressant response to ketamine in individuals with treatment-resistant depression. Neuropsychopharmacology. 2025 May;50(6):941-946. doi: 10.1038/s41386-025-02066-7. Epub 2025 Feb 15.

  • Ballard ED, Greenstein D, Reiss PT, Crainiceanu CM, Cui E, Duncan WC Jr, Hejazi NS, Zarate CA Jr. Functional changes in sleep-related arousal after ketamine administration in individuals with treatment-resistant depression. Transl Psychiatry. 2024 Jun 4;14(1):238. doi: 10.1038/s41398-024-02956-2.

  • Alexander L, Hawkins PCT, Evans JW, Mehta MA, Zarate CA Jr. Preliminary evidence that ketamine alters anterior cingulate resting-state functional connectivity in depressed individuals. Transl Psychiatry. 2023 Dec 1;13(1):371. doi: 10.1038/s41398-023-02674-1.

  • Punturieri C, Duncan WC Jr, Greenstein D, Shandler G, Zarate CA Jr, Evans JW. An exploration of actigraphy in the context of ketamine and treatment-resistant depression. Int J Methods Psychiatr Res. 2023 Sep 5;33(1):e1984. doi: 10.1002/mpr.1984. Online ahead of print.

  • Quintanilla B, Medeiros GC, Greenstein D, Yuan P, Johnston JN, Park LT, Goes FS, Gould TD, Zarate CA Jr. kappa-Opioid Receptor Plasma Levels Are Associated With Sex and Diagnosis of Major Depressive Disorder But Not Response to Ketamine. J Clin Psychopharmacol. 2023 Mar-Apr 01;43(2):89-96. doi: 10.1097/JCP.0000000000001663.

  • Hejazi NS, Farmer CA, Oppenheimer M, Falodun TB, Park LT, Duncan WC Jr, Zarate CA Jr. The relationship between the HDRS insomnia items and polysomnographic (PSG) measures in individuals with treatment-resistant depression. J Psychiatr Res. 2022 Apr;148:27-33. doi: 10.1016/j.jpsychires.2022.01.022. Epub 2022 Jan 11.

  • Dean RL, Marquardt T, Hurducas C, Spyridi S, Barnes A, Smith R, Cowen PJ, McShane R, Hawton K, Malhi GS, Geddes J, Cipriani A. Ketamine and other glutamate receptor modulators for depression in adults with bipolar disorder. Cochrane Database Syst Rev. 2021 Oct 8;10(10):CD011611. doi: 10.1002/14651858.CD011611.pub3.

  • Gilbert JR, Galiano CS, Nugent AC, Zarate CA. Ketamine and Attentional Bias Toward Emotional Faces: Dynamic Causal Modeling of Magnetoencephalographic Connectivity in Treatment-Resistant Depression. Front Psychiatry. 2021 Jun 18;12:673159. doi: 10.3389/fpsyt.2021.673159. eCollection 2021.

  • Acevedo-Diaz EE, Greenwald M, Cavanaugh GW, Greenstein DK, Kraus C, Kadriu B, Zarate CA Jr, Park LT. Reply to: "Letter to the Editor: Are ketamine-induced subjective bodily experiences associated with antidepressant effects? A sensation of floating and a sensation of Lightnessare not the same - A comment on Acevedo-Diaz et al." (Jpsychiatrres-D-21-00121). J Psychiatr Res. 2021 May;137:409-410. doi: 10.1016/j.jpsychires.2021.03.018. Epub 2021 Mar 16. No abstract available.

  • Lundin NB, Sepe-Forrest L, Gilbert JR, Carver FW, Furey ML, Zarate CA Jr, Nugent AC. Ketamine Alters Electrophysiological Responses to Emotional Faces in Major Depressive Disorder. J Affect Disord. 2021 Jan 15;279:239-249. doi: 10.1016/j.jad.2020.10.007. Epub 2020 Oct 7.

  • Mkrtchian A, Evans JW, Kraus C, Yuan P, Kadriu B, Nugent AC, Roiser JP, Zarate CA Jr. Ketamine modulates fronto-striatal circuitry in depressed and healthy individuals. Mol Psychiatry. 2021 Jul;26(7):3292-3301. doi: 10.1038/s41380-020-00878-1. Epub 2020 Sep 14.

  • Nugent AC, Ballard ED, Gilbert JR, Tewarie PK, Brookes MJ, Zarate CA Jr. Multilayer MEG functional connectivity as a potential marker for suicidal thoughts in major depressive disorder. Neuroimage Clin. 2020;28:102378. doi: 10.1016/j.nicl.2020.102378. Epub 2020 Aug 8.

  • Kraus C, Mkrtchian A, Kadriu B, Nugent AC, Zarate CA Jr, Evans JW. Evaluating global brain connectivity as an imaging marker for depression: influence of preprocessing strategies and placebo-controlled ketamine treatment. Neuropsychopharmacology. 2020 May;45(6):982-989. doi: 10.1038/s41386-020-0624-0. Epub 2020 Jan 29.

  • Gilbert JR, Ballard ED, Galiano CS, Nugent AC, Zarate CA Jr. Magnetoencephalographic Correlates of Suicidal Ideation in Major Depression. Biol Psychiatry Cogn Neurosci Neuroimaging. 2020 Mar;5(3):354-363. doi: 10.1016/j.bpsc.2019.11.011. Epub 2019 Dec 3.

  • Acevedo-Diaz EE, Cavanaugh GW, Greenstein D, Kraus C, Kadriu B, Zarate CA, Park LT. Comprehensive assessment of side effects associated with a single dose of ketamine in treatment-resistant depression. J Affect Disord. 2020 Feb 15;263:568-575. doi: 10.1016/j.jad.2019.11.028. Epub 2019 Nov 10.

  • Kadriu B, Farmer CA, Yuan P, Park LT, Deng ZD, Moaddel R, Henter ID, Shovestul B, Ballard ED, Kraus C, Gold PW, Machado-Vieira R, Zarate CA Jr. The kynurenine pathway and bipolar disorder: intersection of the monoaminergic and glutamatergic systems and immune response. Mol Psychiatry. 2021 Aug;26(8):4085-4095. doi: 10.1038/s41380-019-0589-8. Epub 2019 Nov 15.

  • Reed JL, Nugent AC, Furey ML, Szczepanik JE, Evans JW, Zarate CA Jr. Effects of Ketamine on Brain Activity During Emotional Processing: Differential Findings in Depressed Versus Healthy Control Participants. Biol Psychiatry Cogn Neurosci Neuroimaging. 2019 Jul;4(7):610-618. doi: 10.1016/j.bpsc.2019.01.005. Epub 2019 Jan 25.

  • Ballard ED, Reed JL, Szczepanik J, Evans JW, Yarrington JS, Dickstein DP, Nock MK, Nugent AC, Zarate CA Jr. Functional Imaging of the Implicit Association of the Self With Life and Death. Suicide Life Threat Behav. 2019 Dec;49(6):1600-1608. doi: 10.1111/sltb.12543. Epub 2019 Feb 13.

  • Nugent AC, Wills KE, Gilbert JR, Zarate CA Jr. Synaptic potentiation and rapid antidepressant response to ketamine in treatment-resistant major depression: A replication study. Psychiatry Res Neuroimaging. 2019 Jan 30;283:64-66. doi: 10.1016/j.pscychresns.2018.09.001. Epub 2018 Sep 12.

  • Ballard ED, Yarrington JS, Farmer CA, Richards E, Machado-Vieira R, Kadriu B, Niciu MJ, Yuan P, Park L, Zarate CA Jr. Characterizing the course of suicidal ideation response to ketamine. J Affect Disord. 2018 Dec 1;241:86-93. doi: 10.1016/j.jad.2018.07.077. Epub 2018 Jul 30.

  • Reed JL, Nugent AC, Furey ML, Szczepanik JE, Evans JW, Zarate CA Jr. Ketamine normalizes brain activity during emotionally valenced attentional processing in depression. Neuroimage Clin. 2018 Jul 5;20:92-101. doi: 10.1016/j.nicl.2018.07.006. eCollection 2018.

  • Ballard ED, Yarrington JS, Farmer CA, Lener MS, Kadriu B, Lally N, Williams D, Machado-Vieira R, Niciu MJ, Park L, Zarate CA Jr. Parsing the heterogeneity of depression: An exploratory factor analysis across commonly used depression rating scales. J Affect Disord. 2018 Apr 15;231:51-57. doi: 10.1016/j.jad.2018.01.027. Epub 2018 Feb 5.

  • Duncan WC Jr, Slonena E, Hejazi NS, Brutsche N, Yu KC, Park L, Ballard ED, Zarate CA Jr. Motor-Activity Markers of Circadian Timekeeping Are Related to Ketamine's Rapid Antidepressant Properties. Biol Psychiatry. 2017 Sep 1;82(5):361-369. doi: 10.1016/j.biopsych.2017.03.011. Epub 2017 Mar 28.

  • Vande Voort JL, Ballard ED, Luckenbaugh DA, Bernert RA, Richards EM, Niciu MJ, Park LT, Machado-Vieira R, Duncan WC Jr, Zarate CA Jr. Antisuicidal Response Following Ketamine Infusion Is Associated With Decreased Nighttime Wakefulness in Major Depressive Disorder and Bipolar Disorder. J Clin Psychiatry. 2017 Sep/Oct;78(8):1068-1074. doi: 10.4088/JCP.15m10440.

  • Lepow L, Luckenbaugh DA, Park L, Henter ID, Zarate CA Jr. Case series: Antidepressant effects of low-affinity and low-trapping NMDA receptor antagonists did not predict response to ketamine in seven subjects. J Psychiatr Res. 2017 Mar;86:55-57. doi: 10.1016/j.jpsychires.2016.10.023. Epub 2016 Nov 22. No abstract available.

  • Pennybaker SJ, Niciu MJ, Luckenbaugh DA, Zarate CA. Symptomatology and predictors of antidepressant efficacy in extended responders to a single ketamine infusion. J Affect Disord. 2017 Jan 15;208:560-566. doi: 10.1016/j.jad.2016.10.026. Epub 2016 Oct 26.

  • Bernert RA, Luckenbaugh DA, Duncan WC, Iwata NG, Ballard ED, Zarate CA. Sleep architecture parameters as a putative biomarker of suicidal ideation in treatment-resistant depression. J Affect Disord. 2017 Jan 15;208:309-315. doi: 10.1016/j.jad.2016.08.050. Epub 2016 Oct 14.

  • Park M, Newman LE, Gold PW, Luckenbaugh DA, Yuan P, Machado-Vieira R, Zarate CA Jr. Change in cytokine levels is not associated with rapid antidepressant response to ketamine in treatment-resistant depression. J Psychiatr Res. 2017 Jan;84:113-118. doi: 10.1016/j.jpsychires.2016.09.025. Epub 2016 Sep 30.

  • Berg HE, Ballard ED, Luckenbaugh DA, Nugent AC, Ionescu DF, Zarate CA Jr. Recognition of emotional facial expressions in anxious and nonanxious depression. Compr Psychiatry. 2016 Oct;70:1-8. doi: 10.1016/j.comppsych.2016.06.007. Epub 2016 Jun 14.

  • Ballard ED, Vande Voort JL, Luckenbaugh DA, Machado-Vieira R, Tohen M, Zarate CA. Acute risk factors for suicide attempts and death: prospective findings from the STEP-BD study. Bipolar Disord. 2016 Jun;18(4):363-72. doi: 10.1111/bdi.12397. Epub 2016 May 27.

  • Ballard ED, Luckenbaugh DA, Richards EM, Walls TL, Brutsche NE, Ameli R, Niciu MJ, Vande Voort JL, Zarate CA Jr. Assessing measures of suicidal ideation in clinical trials with a rapid-acting antidepressant. J Psychiatr Res. 2015 Sep;68:68-73. doi: 10.1016/j.jpsychires.2015.06.003. Epub 2015 Jun 16.

  • Luckenbaugh DA, Ameli R, Brutsche NE, Zarate CA Jr. Rating depression over brief time intervals with the Hamilton Depression Rating Scale: standard vs. abbreviated scales. J Psychiatr Res. 2015 Feb;61:40-5. doi: 10.1016/j.jpsychires.2014.12.015. Epub 2014 Dec 27.

  • Ortiz R, Niciu MJ, Lukkahati N, Saligan LN, Nugent AC, Luckenbaugh DA, Machado-Vieira R, Zarate CA Jr. Shank3 as a potential biomarker of antidepressant response to ketamine and its neural correlates in bipolar depression. J Affect Disord. 2015 Feb 1;172:307-11. doi: 10.1016/j.jad.2014.09.015. Epub 2014 Oct 16.

  • Ionescu DF, Luckenbaugh DA, Niciu MJ, Richards EM, Zarate CA Jr. A single infusion of ketamine improves depression scores in patients with anxious bipolar depression. Bipolar Disord. 2015 Jun;17(4):438-43. doi: 10.1111/bdi.12277. Epub 2014 Nov 14.

  • Ionescu DF, Luckenbaugh DA, Niciu MJ, Richards EM, Slonena EE, Vande Voort JL, Brutsche NE, Zarate CA Jr. Effect of baseline anxious depression on initial and sustained antidepressant response to ketamine. J Clin Psychiatry. 2014 Sep;75(9):e932-8. doi: 10.4088/JCP.14m09049.

  • Ballard ED, Ionescu DF, Vande Voort JL, Niciu MJ, Richards EM, Luckenbaugh DA, Brutsche NE, Ameli R, Furey ML, Zarate CA Jr. Improvement in suicidal ideation after ketamine infusion: relationship to reductions in depression and anxiety. J Psychiatr Res. 2014 Nov;58:161-6. doi: 10.1016/j.jpsychires.2014.07.027. Epub 2014 Aug 12.

  • Cornwell BR, Salvadore G, Furey M, Marquardt CA, Brutsche NE, Grillon C, Zarate CA Jr. Synaptic potentiation is critical for rapid antidepressant response to ketamine in treatment-resistant major depression. Biol Psychiatry. 2012 Oct 1;72(7):555-61. doi: 10.1016/j.biopsych.2012.03.029. Epub 2012 Apr 21.

  • Zarate CA Jr, Brutsche NE, Ibrahim L, Franco-Chaves J, Diazgranados N, Cravchik A, Selter J, Marquardt CA, Liberty V, Luckenbaugh DA. Replication of ketamine's antidepressant efficacy in bipolar depression: a randomized controlled add-on trial. Biol Psychiatry. 2012 Jun 1;71(11):939-46. doi: 10.1016/j.biopsych.2011.12.010. Epub 2012 Jan 31.

  • Diazgranados N, Ibrahim L, Brutsche NE, Newberg A, Kronstein P, Khalife S, Kammerer WA, Quezado Z, Luckenbaugh DA, Salvadore G, Machado-Vieira R, Manji HK, Zarate CA Jr. A randomized add-on trial of an N-methyl-D-aspartate antagonist in treatment-resistant bipolar depression. Arch Gen Psychiatry. 2010 Aug;67(8):793-802. doi: 10.1001/archgenpsychiatry.2010.90.

  • DiazGranados N, Ibrahim LA, Brutsche NE, Ameli R, Henter ID, Luckenbaugh DA, Machado-Vieira R, Zarate CA Jr. Rapid resolution of suicidal ideation after a single infusion of an N-methyl-D-aspartate antagonist in patients with treatment-resistant major depressive disorder. J Clin Psychiatry. 2010 Dec;71(12):1605-11. doi: 10.4088/JCP.09m05327blu. Epub 2010 Jul 13.

  • Machado-Vieira R, Yuan P, Brutsche N, DiazGranados N, Luckenbaugh D, Manji HK, Zarate CA Jr. Brain-derived neurotrophic factor and initial antidepressant response to an N-methyl-D-aspartate antagonist. J Clin Psychiatry. 2009 Dec;70(12):1662-6. doi: 10.4088/JCP.08m04659. Epub 2009 Sep 8.

  • Phelps LE, Brutsche N, Moral JR, Luckenbaugh DA, Manji HK, Zarate CA Jr. Family history of alcohol dependence and initial antidepressant response to an N-methyl-D-aspartate antagonist. Biol Psychiatry. 2009 Jan 15;65(2):181-4. doi: 10.1016/j.biopsych.2008.09.029. Epub 2008 Nov 8.

  • 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.

MeSH Terms

Conditions

DepressionMood DisordersDepressive Disorder, Major

Interventions

Ketamine

Condition Hierarchy (Ancestors)

Behavioral SymptomsBehaviorMental DisordersDepressive Disorder

Intervention Hierarchy (Ancestors)

CyclohexanesCycloparaffinsHydrocarbons, AlicyclicHydrocarbons, CyclicHydrocarbonsOrganic Chemicals

Results Point of Contact

Title
Zarate, Carlos
Organization
National Institute of Mental Health

Study Officials

  • Carlos A Zarate, M.D.

    National Institute of Mental Health (NIMH)

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
OTHER
Intervention Model
CROSSOVER
Sponsor Type
NIH
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 30, 2004

First Posted

August 2, 2004

Study Start

July 26, 2004

Primary Completion

July 31, 2017

Study Completion

July 31, 2017

Last Updated

October 12, 2018

Results First Posted

October 12, 2018

Record last verified: 2017-07-31

Locations