NCT04116528

Brief Summary

To explore whether intravenous ketamine followed by buprenorphine produces more rapid and sustained anti-suicidal effects than ketamine followed by placebo, investigators will conduct a single study that will take approximately 2.5 years to complete. 60 subjects (60 infusions) or approximately 24 infusions per year.

Trial Health

75
On Track

Trial Health Score

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

Enrollment
60

participants targeted

Target at below P25 for phase_3 major-depressive-disorder

Timeline
2mo left

Started Aug 2020

Longer than P75 for phase_3 major-depressive-disorder

Geographic Reach
1 country

1 active site

Status
active not recruiting

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 Progress97%
Aug 2020Jul 2026

First Submitted

Initial submission to the registry

July 3, 2019

Completed
3 months until next milestone

First Posted

Study publicly available on registry

October 4, 2019

Completed
10 months until next milestone

Study Start

First participant enrolled

August 1, 2020

Completed
4.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 28, 2025

Completed
1.2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2026

Expected
Last Updated

February 21, 2025

Status Verified

February 1, 2025

Enrollment Period

4.7 years

First QC Date

July 3, 2019

Last Update Submit

February 19, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Change in Beck Suicidal Ideation Scale total scores will be analyzed as the primary outcome measure using analysis of variance model for repeated measures.

    The model will include the difference in total scores on the suicidality measure from days 3 to 31 as a within subject effect, treatment, and time, as well as time x treatment interaction. The model will include Day 3 score as well. The total scores range from 0 to 38, with higher values indicating a greater risk of suicide.All effects will use p\<.05 for simple effects and p=0.1 for interactions, Using a sample size of 60, the hypothesis test will be fully powered (i.e., 80%) to detect effect sizes of 0.35 or greater.

    change from Day 3-31 and add to the model the Day 0 to 3 change in response to ketamine.

Secondary Outcomes (1)

  • The investigators will assess opioid activity of ketamine as well as buprenorphine

    Day 3-31

Other Outcomes (2)

  • Serum prolactin level

    Day 1 and 3-31.

  • Pupillometry

    change from Day 3-31

Study Arms (2)

Ketamine

OTHER

Every eligible participant will receive 0.5mg/kg IV given over 40 minutes

Drug: Ketamine

Buprenorphine or Placebo

ACTIVE COMPARATOR

Buprenorphine or placebo once daily for 4 weeks

Drug: BuprenorphineDrug: Placebo oral tablet

Interventions

0.5mg/kg

Ketamine

Buprenorphine (0.2-0.8mg/day) or Placebo orally dissolving tablet

Buprenorphine or Placebo

Buprenorphine or Placebo orally dissolving tablet

Buprenorphine or Placebo

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Male or female, 18 to 70 years of age, inclusive, at screen.
  • Able to read, understand, and provide written, dated informed consent prior to screening. Participants will be deemed likely to comply with study protocol and communicate with study personnel about adverse events and other clinically important information.
  • Diagnosed with Major Depressive Disorder (MDD), single or recurrent or Bipolar-II Disorder and currently experiencing a Major Depressive Episode (MDE) of at least eight weeks in duration, prior to screening, according to the criteria defined in the Diagnosis and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision(DSM-IV-TR™). The diagnosis of MDD will be made by a site psychiatrist and supported by the Structured Clinical Interview for DSM-IV-TR™ (SCID-I/P).
  • Has a history of TRD during the current MDE, as assessed by the investigator. TRD is defined as failure to achieve a satisfactory response (e.g., less than 50% improvement of depression symptoms), as perceived by the participant, to at least one "treatment course" of a therapeutic dose of an antidepressant therapy of at least 8 weeks duration. The adequacy of dose and duration of the antidepressant therapy will be determined as per the MGH ATRQ criteria. Participants must currently be on a stable (for at least 4 weeks) and adequate (according to the MGH ATRQ) dose of ongoing SSRI or SNRI antidepressant therapy, of which total duration must be at least 8 weeks. Participants may also have a history of intolerance to at least 2 antidepressant medications. These patients with the intolerance history will not be required to be currently taking an antidepressant medication.
  • Meet the threshold on the total SSI score of \>/=6 at both screening and baseline visits.
  • Participants must qualify as "Moderately Treatment Refractory" using the Maudsley staging method, which incorporates past treatments, severity of symptoms and duration of presenting episode.
  • In good general health, as ascertained by medical history, physical examination (PE) (including measurement of supine and standing vital signs), clinical laboratory evaluations, and 3-lead electrocardiogram (ECG) if no evaluation available from the last 6 months.
  • If female, a status of non-childbearing potential or use of an acceptable form of birth control per the following specific criteria:
  • a. 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 b. 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 randomization 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.
  • Body mass index between 17-40kg/m2.
  • Concurrent psychotherapy will be allowed if the type (e.g., supportive, cognitive behavioral, insight-oriented, et al) and frequency (e.g., weekly or monthly) of the therapy has been stable for at least three months prior to screening and if the type and frequency of the therapy is expected to remain stable during the course of the subject's participation in the study.
  • Concurrent hypnotic therapy (e.g., with zolpidem, zaleplon, melatonin, or trazodone) will be allowed if the therapy has been stable for at least 4 weeks prior to screening and if it is expected to remain stable during the course of the subject's participation in the study.

You may not qualify if:

  • A potential participant will NOT be eligible for participation in this study if any of the following criteria are met:
  • Female of childbearing potential who is not willing to use one of the specified forms of birth control during the study.
  • Female that is pregnant or breastfeeding.
  • Female with a positive pregnancy test at screening or baseline.
  • Total SSI score of \<6 at the screen or baseline visits.
  • \. Current diagnosis of a Substance Use Disorder (Abuse or Dependence, as defined by DSM-IV-TR™), with the exception of nicotine dependence, at screening or within six months prior to screening.
  • \. Current diagnosis of Axis I disorders other than Dysthymic Disorder, Generalized Anxiety Disorder, Social Anxiety Disorder, Panic Disorder, Agoraphobia, or Specific Phobia (unless one of these is comorbid and clinically unstable, and/or the focus of the participant's treatment for the past six months or more).
  • \. History of schizophrenia or schizoaffective disorders, or any history of psychotic symptoms in the current or previous depressive episodes.
  • \. History of anorexia nervosa, bulimia nervosa, or eating disorder not otherwise specified, within one year of screening.
  • \. Any Axis I or Axis II Disorder, which at screening is clinically predominant to their MDD or has been predominant to their MDD at any time within six months prior to screening. A diagnosis of borderline personality disorder is excluded.
  • \. In the judgment of the investigator, the subject is at significant risk for suicidal behavior during the course of his/her participation in the study.
  • \. Has dementia, delirium, amnestic, or any other cognitive disorder.
  • \. Has a clinically significant abnormality on the screening physical examination that might affect safety, study participation, or confound interpretation of study results.
  • \. Participation in any clinical trial with an investigational drug or device within the past month or concurrent to study participation.
  • \. Known history or current episode of:
  • +17 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Stanford University School of Medicine

Stanford, California, 94305, United States

Location

MeSH Terms

Conditions

Depressive Disorder, Major

Interventions

KetamineBuprenorphine

Condition Hierarchy (Ancestors)

Depressive DisorderMood DisordersMental Disorders

Intervention Hierarchy (Ancestors)

CyclohexanesCycloparaffinsHydrocarbons, AlicyclicHydrocarbons, CyclicHydrocarbonsOrganic ChemicalsMorphinansOpiate AlkaloidsAlkaloidsHeterocyclic CompoundsHeterocyclic Compounds, Bridged-RingHeterocyclic Compounds, 4 or More RingsHeterocyclic Compounds, Fused-RingPhenanthrenesPolycyclic Aromatic HydrocarbonsPolycyclic Compounds

Study Officials

  • Alan F. Schatzberg

    Stanford University

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

July 3, 2019

First Posted

October 4, 2019

Study Start

August 1, 2020

Primary Completion

April 28, 2025

Study Completion (Estimated)

July 1, 2026

Last Updated

February 21, 2025

Record last verified: 2025-02

Locations