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Major Depressive DisorderPhase 1NCT03977675

The Role of HNKs in the Antidepressant Effect of Ketamine

A Phase 1 study testing Ketamine in people with Major Depressive Disorder, run by Columbia University at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The objective of the proposed study is to examine the relationship between serum concentrations of HNK and changes in the Hamilton Depression Rating Scale (HDRS), Beck Depression Inventory (BDI), and the Profile of Mood States (POMS), as well as glutamatergic/GABAergic response. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Major Depressive Disorder
What is being tested?
Ketamine
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
8 participants
Where
1 siteUnited States
Study dates
15 May 2019to 2 Jul 2020
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Current major depressive episode (MDE) as part of major depressive disorder (MDD). May be psychiatric medication-free or, if on psychiatric medications, not responding adequately.
  • Off all psychotropic and other types of drugs likely to interact with glutamate for at least 14 days before starting the study OR likely able to tolerate a medication washout.
  • Female subjects of child-bearing potential must be using an acceptable method of birth control throughout the study.

Who cannot join

  • Lifetime history of schizophrenia, schizoaffective illness, bipolar disorder, or psychosis.
  • First-degree relative with schizophrenia, schizoaffective disorder, or bipolar disorder if the subject is less than 33 years old.
  • Significant uncontrolled physical illness.
  • Electroconvulsive therapy (ECT) within the last 3 months for current MDE.
  • Pregnancy or plans to conceive during the course of study participation.
  • Heart pacemaker, body implant or other metal in body.
Show all 10Show fewer
  • Neurological disease or prior head trauma with evidence of cognitive impairment.
  • Claustrophobia sufficient to preclude MRI.
  • Prior ineffective trial of, or adverse effect to, ketamine.
  • IV drug use or history of ketamine use as a recreational drug ≥ 2 times or an adverse reaction to ketamine; any other drug or alcohol dependence within past 6 months.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • New York State Psychiatric Institute

    New York, New York, 10032

Other trials in United States

About this study

The objective of the proposed study is to examine the relationship between serum concentrations of HNK and changes in the Hamilton Depression Rating Scale (HDRS), Beck Depression Inventory (BDI), and the Profile of Mood States (POMS), as well as glutamatergic/GABAergic response. To achieve these aims the investigators propose a double-blind, uncontrolled (no placebo, no healthy control subjects) study with several different doses of ketamine. The investigators will conduct MRI scans to measure Glu and GABA before and during the ketamine treatment.

Read the detailed description

Major depressive disorder (MDD) is a common illness, affecting over 14 million American adults each year. MDD is a leading cause of disability worldwide and is responsible for huge workplace and healthcare costs. The several week delay between onset of treatment and improvement in MDD symptoms with currently available treatments further increases the burden of the disorder. Shortening this delay is a major unmet challenge in the treatment of MDD. Studies report that a single intravenous low dose of a drug called ketamine can bring about substantial improvement in depression in hours, even in patients that have not improved with other antidepressant treatments. Certain aspects of ketamine's drug action are fairly well understood, but the question remains of how these properties relate to antidepressant effect.

Preliminary data support the rapid antidepressant benefit from ketamine but do not show a relationship between clinical improvement and the amount of ketamine, norketamine or dehydronorketamine (DHNK)(two of ketamine's metabolites) in the blood. The investigators hypothesize that a different metabolite of ketamine, hydroxynorketamine (HNK), produces the antidepressant effect of ketamine. The investigators have also used a scanner to measure the effects of ketamine on two major brain chemical transmitters and found that it causes a significant increase (more than 60%) in glutamate (Glu) and gamma aminobutyric acid (GABA) levels in the front of the brain. The investigators hypothesize that this increase in Glu and GABA levels is responsible for the antidepressant action of the drug. Knowing how ketamine works could help to develop better medications that can be used orally and used for maintenance of the improvement seen with ketamine.

Being tested
Ketamine
Keywords
Magnetic Resonance Spectroscopy, Ketamine
Medical subject headings
Depressive Disorder, Major

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • KetamineDrug

    Patients are assigned to one of three ketamine doses (0.3, 0.5, or 0.7 mg/kg) that will be administered intravenously.

Study groups in NCT03977675
Study groupRoleWhat they receive
Ketamine 0.3 mg/kgExperimentalSubjects are assigned to receive a dose of 0.3 mg/kg of Ketamine.
Receives: Drug: Ketamine
Ketamine 0.5 mg/kgExperimentalSubjects are assigned to receive a dose of 0.5 mg/kg of Ketamine.
Receives: Drug: Ketamine
Ketamine 0.7 mg/kgExperimentalSubjects are assigned to receive a dose of 0.7 mg/kg of Ketamine.
Receives: Drug: Ketamine

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in HNK Plasma Concentration

    HNK levels will be measured after ketamine administration.

    Measured: Baseline and 80 minutes post-infusion

  2. Change in DHNK Plasma Concentration

    DHNK levels will be measured after ketamine administration.

    Measured: Baseline and 80 minutes post-infusion

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted6 Jun 2019
  2. Study start15 May 2019
  3. Primary completion2 Jul 2020
  4. Study completion2 Jul 2020

Why it stopped: PI left the institution

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
8 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03977675
Sponsor's protocol ID
NYSPI 7558
Status last verified
Jan 2021
First submitted
5 Jun 2019
Last updated
22 Jan 2021
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Ketamine in people with Major Depressive Disorder, run by Columbia University at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 22 Jan 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was stopped early (reason given: PI left the institution). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in HNK Plasma Concentration (time frame: Baseline and 80 minutes post-infusion). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 22 Jan 2021.

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