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CompletedNCT03539887Updated Mar 1, 2023Results posted

Trial of the Rapid Antisuicidal Effects of Intranasal Ketamine in Comorbid Depression and Alcohol Abuse

A Phase 3 interventional study of Intranasal ketamine and Placebo in Suicidal Ideation, Depression and Alcohol Abuse, sponsored by The University of Texas Health Science Center, Houston. Completed at 1 site in United States. Open to participants aged 21 Years to 60 Years. Per ClinicalTrials.gov, last updated 2023-03-01.

Sponsored by The University of Texas Health Science Center, Houston · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
33
Allocation
Randomized
Ages
21 Years to 60 Years
Sex
All
01

Study summary

This project aims to evaluate the potential rapid and sustained antisuicidal and antidepressant effects of a single intranasal dose of ketamine in inpatients during a mood episode in Major Depressive Disorder (MDD) or Bipolar Disorder (BD) with or without comorbid recent abuse of alcohol.

Read the detailed description

Clinicians have a limited ability to predict imminent suicidal behavior and efficacious treatments are not available to treat suicidal patients. Thus, Rapid-acting treatments for suicidal individuals are truly needed. This project aims to evaluate the potential rapid and sustained antisuicidal and antidepressant effects of a single intranasal dose of ketamine in inpatients during a mood episode (in Major Depressive Disorder, MDD or Bipolar Disorder, BD) with or without comorbid recent abuse of alcohol. These results will elucidate the antisuicidal effects of ketamine using the intranasal route along with the identification of associated mediators or moderators; this approach has the potential for enormous public health impact.

02

Conditions studied

  • Suicidal Ideation
  • Depression
  • Alcohol Abuse

Keywords

  • Ketamine
  • Depression
  • Suicidal Ideation
  • Alcohol Abuse
03

In context

Suicidal Ideation

530 studies on the registry are indexed under Suicidal Ideation; 198 are open to participants now.

This study's enrollment of 33 is below the median of 80 across 440 interventional studies indexed under Suicidal Ideation.

Browse Suicidal Ideation studies →

Lead sponsor

The University of Texas Health Science Center, Houston is the lead sponsor of 897 studies on the registry; 214 are open to participants now.

Of its 173 completed or terminated interventional studies of FDA-regulated products, 142 (82%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
21 Years to 60 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Voluntary admission to Harris County Psychiatry Center
  • Able to provide written informed consent
  • Current suicidal ideation and depressive symptoms and Diagnostic and Statistical Manual of Mental Disorders -IV- Text Revision(DSM-IV-TR) depressive episode (also MADRS greater than or equal to 12) and Young Mania Rating Scale (YMRS) score lower than 8
  • DSM-IV-TR criteria for current alcohol abuse (but not intoxicated/withdrawal, abstinent from drinking for > 5 days prior to admission).
  • Lifetime history of suicide attempt (patient)
  • Not taking any medication in the last 24hs.
  • Scale for Suicide Ideation (SSI) score over 4 (first five items) and Columbia scale (C-SSRS) score 4 or 5

Exclusion criteria

Exclusion Criteria:

  • Unstable medical condition or medical problem with known central nervous system (CNS) effects, e.g. uncontrolled hypertension systolic blood pressure (SBP) ≥170 and/or diastolic blood pressure (DBP) ≥100) or recent history (6 months) of alcohol-withdrawal seizures or significant abnormal laboratory tests (liver function test (LFT) 3 times higher than normal).
  • Prior diagnosis of a DSM-IV-TR psychotic spectrum disorder, psychotic symptoms, or personality disorder.
  • Currently under the acute effects of an illicit substance.
  • Pregnant or nursing women.
  • Subjects with a history of DSM-IV drug dependency or abuse (except for caffeine or nicotine dependence) within the preceding 3 months
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
33 participants (actual)

Study arms

  • Experimental
    Intranasal ketamine

    Intranasal ketamine

    Drug: Intranasal ketamine

  • Placebo comparator
    Placebo

    non-active placebo

    Drug: Placebo

Interventions

  • Intranasal ketamine will be prepared as 100mg/ml ketamine in 0.9% saline. An mucosal atomization device will be used to provide 5 intranasal applications of solution (volume 100 μl), separated by 3 minutes, over a total of 15 minutes. Each of five ketamine applications will provide 10 mg of study drug, for a total of 50mg. The dose to be used (0.5-1mg/Kg) is 6 to 18 times lower than the sedation dose (6-9mg/Kg).

  • DrugPlacebo

    Saline alone. An mucosal atomization device will be used to provide 5 intranasal applications of saline (volume 100 μl), separated by 3 minutes, over a total of 15 minutes.

06

What researchers measure

Primary outcomes

  1. Suicidal Ideation as Assessed by the Scale for Suicide Ideation (SSI)

    The scale contains 19 items rated on a scale from 0 to 2, allowing score range from 0 to 38, score over 4 (first five items) will be considered inclusion criteria. Higher values indicate worsening or presence of suicidal ideation.

    Time frame: 24 hours

Secondary outcomes

  1. Depression as Assessed by the Montgomery-Åsberg Depression Rating Scale (MADRS)

    It has ten items, each item yields a score of 0 to 6. Hence the overall score ranges from 0 to 60. Higher scores indicate more severe depression.

    Time frame: 24 hours

  2. Snaith-Hamilton Pleasure Scale

    The Snaith-Hamilton Pleasure Scale (SHAPS) is an assessment of anhedonia, which is the inability to experience pleasure. The SHAPS has 14 items. Each item has four possible responses: strongly disagree, disagree, agree, or strongly agree. A response of "strongly disagree" or "disagree" equals one point, and a response of "strongly agree" or "agree" equals 0 points. Thus, the final score ranges from 0 to 14. A score of 2 or less constitutes a "normal" score, while an "abnormal" score is defined as 3 or more.

    Time frame: 24 hours

  3. Alcohol Urge Questionnaire (AUQ)

    Alcohol Urge Questionnaire (AUQ) is a multi-item measure of self-reported urges to drink alcohol, predictor of drinking abuse and relapse. AUQ is an 8-item questionnaire. Each item is scored on a 1 to 7 scale (Strongly Disagree = 1 and Strongly Agree = 7). Items 2 and 7 are reverse scored. Total score ranges from 8 to 56, and a higher score reflects greater craving.

    Time frame: 24 hours

  4. Manic Symptoms as Assessed by Score on the Young Mania Rating Scale (YMRS)

    The YMRS has 11 items, and total score ranges from 0 to 88, with a higher score indicating greater mania.

    Time frame: 24 hours

  5. Dissociative State as Assessed by Score on Clinician-Administered Dissociative States Scale (CADSS)

    The CADSS consists of 23 items, and each item is rated on a scale from 0 (not at all) to 4 (severe), with the total score ranging from 0 to 92. A higher score indicates greater severity of dissociative state.

    Time frame: 24 hours

07

Results

Posted Mar 1, 2023

Participant flow

Participant flow — Overall Study
MilestoneIntranasal KetaminePlacebo
Started1711
Completed1711
Not completed00

Outcome measures

PrimarySuicidal Ideation as Assessed by the Scale for Suicide Ideation (SSI)

The scale contains 19 items rated on a scale from 0 to 2, allowing score range from 0 to 38, score over 4 (first five items) will be considered inclusion criteria. Higher values indicate worsening or presence of suicidal ideation.

Time frame:
24 hours
Reported as:
Mean · score on a scale
Suicidal Ideation as Assessed by the Scale for Suicide Ideation (SSI)
score on a scaleIntranasal KetaminePlacebo
Suicidal Ideation as Assessed by the Scale for Suicide Ideation (SSI)10.8 ± 8.0812.3 ± 7.83
SecondaryDepression as Assessed by the Montgomery-Åsberg Depression Rating Scale (MADRS)

It has ten items, each item yields a score of 0 to 6. Hence the overall score ranges from 0 to 60. Higher scores indicate more severe depression.

Time frame:
24 hours
Reported as:
Mean · score on a scale
Depression as Assessed by the Montgomery-Åsberg Depression Rating Scale (MADRS)
score on a scaleIntranasal KetaminePlacebo
Depression as Assessed by the Montgomery-Åsberg Depression Rating Scale (MADRS)16.8 ± 13.722.5 ± 17.7
SecondarySnaith-Hamilton Pleasure Scale

The Snaith-Hamilton Pleasure Scale (SHAPS) is an assessment of anhedonia, which is the inability to experience pleasure. The SHAPS has 14 items. Each item has four possible responses: strongly disagree, disagree, agree, or strongly agree. A response of "strongly disagree" or "disagree" equals one point, and a response of "strongly agree" or "agree" equals 0 points. Thus, the final score ranges from 0 to 14. A score of 2 or less constitutes a "normal" score, while an "abnormal" score is defined as 3 or more.

Time frame:
24 hours
Reported as:
Mean · score on a scale
Snaith-Hamilton Pleasure Scale
score on a scaleIntranasal KetaminePlacebo
Snaith-Hamilton Pleasure Scale4.12 ± 4.815.00 ± 4.29
SecondaryAlcohol Urge Questionnaire (AUQ)

Alcohol Urge Questionnaire (AUQ) is a multi-item measure of self-reported urges to drink alcohol, predictor of drinking abuse and relapse. AUQ is an 8-item questionnaire. Each item is scored on a 1 to 7 scale (Strongly Disagree = 1 and Strongly Agree = 7). Items 2 and 7 are reverse scored. Total score ranges from 8 to 56, and a higher score reflects greater craving.

Time frame:
24 hours
Reported as:
Mean · score on a scale
Alcohol Urge Questionnaire (AUQ)
score on a scaleIntranasal KetaminePlacebo
Alcohol Urge Questionnaire (AUQ)13.8 ± 12.216.3 ± 11.2
SecondaryManic Symptoms as Assessed by Score on the Young Mania Rating Scale (YMRS)

The YMRS has 11 items, and total score ranges from 0 to 88, with a higher score indicating greater mania.

Time frame:
24 hours
Reported as:
Mean · score on a scale
Manic Symptoms as Assessed by Score on the Young Mania Rating Scale (YMRS)
score on a scaleIntranasal KetaminePlacebo
Manic Symptoms as Assessed by Score on the Young Mania Rating Scale (YMRS)2.29 ± 2.852.40 ± 2.12
SecondaryDissociative State as Assessed by Score on Clinician-Administered Dissociative States Scale (CADSS)

The CADSS consists of 23 items, and each item is rated on a scale from 0 (not at all) to 4 (severe), with the total score ranging from 0 to 92. A higher score indicates greater severity of dissociative state.

Time frame:
24 hours
Reported as:
Mean · score on a scale
Dissociative State as Assessed by Score on Clinician-Administered Dissociative States Scale (CADSS)
score on a scaleIntranasal KetaminePlacebo
Dissociative State as Assessed by Score on Clinician-Administered Dissociative States Scale (CADSS)0.824 ± 2.901.60 ± 3.20

Adverse events

Collected over 48 hours. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Intranasal Ketamine0/17 (0%)0/17 (0%)12/17 (70.6%)
Placebo0/11 (0%)0/11 (0%)4/11 (36.4%)
Most frequent other events
Most frequent other events
EventIntranasal KetaminePlacebo
Cognitive side effectNervous system disorders12/174/11

Baseline characteristics

Age, Continuous
Age, Continuous(years)Intranasal KetaminePlaceboTotal
Mean39 ± 938.5 ± 13.838.8 ± 11.1
Sex: Female, Male
Sex: Female, Male(Participants)Intranasal KetaminePlaceboTotal
Female527
Male12921
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Intranasal KetaminePlaceboTotal
Hispanic or Latino303
Not Hispanic or Latino141125
Unknown or Not Reported000
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Intranasal KetaminePlaceboTotal
American Indian or Alaska Native000
Asian000
Native Hawaiian or Other Pacific Islander000
Black or African American336
White11819
More than one race000
Unknown or Not Reported303
Region of Enrollment
Region of Enrollment(Participants)Intranasal KetaminePlaceboTotal
United States171128
08

Study locations

1 site
  • The University of Texas Health Science Center at Houston
    Houston, Texas 77006, United States
09

References and documents

Publications

  • Jones GH, Vecera CM, Ruiz AC, Wu HE, McInturff SI, Orejarena MJ, Smith KA, Soares JC, Zarate CA, Lane SD, Machado-Vieira R. A Randomized, Double-Blind, Placebo-Controlled Pilot Trial of the Acute Antisuicidal and Antidepressant Effects of Intranasal (R,S)-Ketamine in Severe Unipolar and Bipolar Depression With and Without Comorbid Alcohol Use Disorder. J Clin Psychiatry. 2024 Apr 24;85(2):23m14974. doi: 10.4088/JCP.23m14974. PubMed 38696221 ↗

Study documents

  • Protocol and statistical analysis plan · Oct 9, 2019

Documents are hosted by the registry — open the source record to download them.

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 1, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03539887
Responsible party
Rodrigo Machado-Vieira, MD, PhD, MSc (Professor of Psychiatry, The University of Texas Health Science Center, Houston) — Principal investigator
First posted
May 29, 2018
Start date
May 1, 2018
Primary completion
Jan 15, 2022
Completion
Jan 15, 2022
Results posted
Mar 1, 2023
Last update
Mar 1, 2023

Study contacts

Rodrigo Machado-Vieira, MD, PhD, MSc
principal investigator · The University of Texas Health Science Center, Houston

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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