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DepressionPhase 2NCT03102736

Ketamine and Nitroprusside for Depression

A Phase 2 study testing Ketamine and Nitroprusside in people with Depression, run by Icahn School of Medicine at Mount Sinai at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to test the effects of the medication ketamine and the medication called nitroprusside in patients with major depression. Ketamine has both good and bad effects. Some studies have shown that ketamine improves depression. Read more about this study

Who is it for?
Ages 21 to 65 years
Conditions the study is for
Depression
What is being tested?
Ketamine and Nitroprusside
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
40 participants
Where
1 siteUnited States
Study dates
14 Feb 2017to 12 Jun 2019
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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

Who may be able to join

  • Male or female patients, 21-65 years of age;
  • Female individuals who are not of childbearing potential (i.e., surgically sterile, postmenopausal for at least one year) or using a medically accepted reliable means of contraception. Women using oral contraceptive medication for birth control must also be using a barrier contraceptive. Women of childbearing potential must also have a negative pregnancy test at screening and at pre-infusion;
  • Participants must fulfill current DSM-5 criteria for Major Depression without psychotic features or Persistent Depressive Disorder with specifier of "with persistent major depressive episode";
  • Depression is at least moderate severity, defined as a CGI-S score of ≥ 4;
  • Current major depressive episode is of at least 4 weeks duration
  • Each participant must have a level of understanding sufficient to agree to all tests and examinations required by the protocol and must sign an informed consent document
  • Each participant must be able to identify a family member, physician, or friend who will act as an emergency contact

Who cannot join

  • Lifetime history of psychotic features, diagnosis of schizophrenia or any other psychotic disorder, or diagnosis of bipolar disorder;
  • Lifetime histories of autism, mental retardation, pervasive developmental disorders, or Tourette's syndrome;
  • Current diagnosis of obsessive compulsive disorder (OCD) or eating disorder (bulimia nervosa or anorexia nervosa);
  • Subjects with DSM-V drug or alcohol abuse/dependence within the preceding 2 years;
  • Patients with schizotypal or antisocial personality disorder, or any clinically significant axis II disorder that would, in the investigator's judgment, preclude safe study participation;
  • Patients judged clinically to be at serious and imminent suicidal or homicidal risk;
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  • Women who are either pregnant or nursing;
  • Any serious, unstable medical illnesses including hepatic, renal impairment, gastroenterologic, respiratory, cardiovascular, endocrinologic, neurologic, immunologic, or hematologic disease;
  • History of congestive heart failure or established coronary artery disease;
  • History of cerebrovascular insufficiency
  • History of intrapulmonary arteriovenous shunts, co-arctation of the aorta or other conditions where cardiac outflow tract is obstructed;
  • Vitamin B12 deficiency;
  • Clinically significant abnormal findings of laboratory parameters, physical examination, or ECG;
  • Renal impairment, as reflected by a BUN > 20 mg/dL and/or creatinin clearance of >1.3 mg/dL;
  • Thyroid impairment, as reflected by a thyroid-stimulating hormone (TSH) > 4.2 mU/L;
  • Hepatic injury, as reflected by AST or ALT greater than twice the upper limit of the reference range (AST: >80; ALT >110)
  • Patients who have a positive urine toxicology for illicit substances at screening and within 24 hours of the infusion;
  • Treatment with an irreversible MAOI within 2 weeks prior to randomization or fluoxetine within 4 weeks prior to randomization;
  • Treatment with other antidepressants (classified as SSRIs, SNRIs, Atypical Antidepressants, MAOIs, TCAs) within one week of randomization.
  • Previous recreational use of phencyclidine (PCP) or KET;
  • Hypertension with systolic BP >160 mm Hg or diastolic BP >90 mm Hg at screening, systolic BP > 165 mm Hg or diastolic BP > 95 mm Hg immediately prior to treatment with study drug or hypotension with systolic BP < 90 or diastolic < 60 at screening or immediately prior to treatment with study drug; heart rate >110 or <60 at either of these time points;
  • Treatment with sildenafil (Viagra), tadalafil (Cialis), Avanafil (Stendra), Vardenafil (Levitra) or other drugs in the same category of phosphodiesterase-5 enzyme inhibitors within 2 weeks of infusion.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Icahn School of Medicine at Mount Sinai

    New York, New York, 10029

Other trials in United States

About this study

Official title: Pharmacologic Attenuation of Ketamine Using Nitroprusside

The purpose of this study is to test the effects of the medication ketamine and the medication called nitroprusside in patients with major depression. Ketamine has both good and bad effects. Some studies have shown that ketamine improves depression. However, studies have also shown that it causes strange and sometimes unpleasant sensations referred to "psychotic" or "dissociative" symptoms. An example of a psychotic symptom would be hearing or seeing something that in reality is not there. The study team would like to see if nitroprusside can prevent the reported bad effects of ketamine without blocking the reported good effects. This might make ketamine a better treatment for depression.

Read the detailed description

Ketamine is an effective fast-acting therapeutic intervention for patients with treatment refractory depression that is known to have the unwanted effect of inducing temporary psychotomimetic symptoms (i.e., delusions, hallucinations and thought disorganization) in some patients. The precise mechanisms of these psychotropic effects remain to be elucidated, but for several decades the NMDA-type glutamate receptor has been hypothesized to be of central importance. In this vain, recent studies of the antihypertensive agent nitroprusside - which increases the availability of the molecular nitric oxide, a known by-product of NMDA activity - have found evidence for antipsychotic properties both in humans with psychotic illness and healthy subjects given ketamine. Here, the clinical team proposes a study that will build on this work by evaluate the effects of nitroprusside on both the antidepressant and psychotomimetic effects of ketamine given to patients to treat refractory depression. In addition, as an exploratory aim, by collecting serial blood samples from the subjects, as the subjects are administered ketamine and nitroprusside, the clinical team will seek to determine functional markers of therapeutic effect and the mechanisms by which ketamine modulates both mood and psychotic states Research Question: The clinical team will test whether the effects of ketamine (KET) on mood and psychotic states is modified by co-administration with sodium nitroprusside (NP) in patients with depression. Furthermore, the clinical team will evaluate the extent to which the underlying biology of disease states and drug mechanisms can be inferred through analysis of brain-derived molecular material isolated from the peripheral circulation.

Specific Aims:

Aim I. To test whether co-administration with NP has any impact on the efficacy of KET as an antidepressant.

Aim II: To test the ability of NP to prevent the psychotomimetic effects of KET in patients with depression.

Research Hypotheses:

Research Hypothesis I. Patients pre-treated with NP will experience attenuated antidepressant effects (measured by MADRS score) following KET compared to pre-treatment with placebo.

Research Hypothesis II: Patients pre-treated with NP will experience attenuated psychotomimetic effects (e.g., CADSS score) immediately following KET compared to pre-treatment with placebo.

Conditions
Depression
Being tested
Placebos, Ketamine, Nitroprusside
Keywords
depression, ketamine, nitroprusside
Medical subject headings
Depression

What participants receive

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

  • PlacebosDrug

    Placebo saline

  • KetamineDrug

    0.5 mg/kg ketamine

  • NitroprussideDrug

    0.5 mcg/kg nitroprusside

Study groups in NCT03102736
Study groupRoleWhat they receive
Placebo and KetaminePlacebo comparatorPlacebo saline given over 240 minutes + 0.5 mg/kg ketamine given over 40 minutes
Receives: Drug: Placebos; Drug: Ketamine
Nitroprusside and KetamineExperimental0.5 mcg/kg/min nitroprusside given over 240 min (4 hours) - 0.5 mg/kg ketamine given over the last 40 min of the nitroprusside infusion (starting at minute 200 the two drugs are given together)
Receives: Drug: Ketamine; Drug: Nitroprusside

What is being measured

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

  1. Montgomery-Asberg Depression Rating Scale

    This is a 10-item instrument used for the evaluation of depressive symptoms in adults and for the assessment of any changes to those symptoms. Each of the 10 items is rated on a scale of 0 to 6, with differing descriptors for each item. These individual item scores are added together to form a total score, which can range between 0 (normal) and 60 (severe depression).

    Measured: 24 hours after start of infusion

Secondary outcomes (3)
  1. Clinician-Administered Dissociative States Scale

    This is used to measure dissociative effects during the infusions. The scale includes 23 clinician administered items scored from 0 (not at all) to 4 (extremely). The CADSS measures impairment in body perception, environmental perception, time perception, memory impairment, and feelings of unreality. Full scale from 0-92, with lower score indicating better health outcomes.

    Measured: 240 minutes after start of infusion

  2. Visual Analog Scale

    These scales are scored in millimeters from the left-hand side of a 100-mm line to a perpendicular mark made by the patient at a point corresponding to the apparent magnitude of the feeling state. Range: 0 ("not at all") to 100 ("most ever").

    Measured: 240 minutes after start of infusion

  3. Brief Psychiatric Rating Scale (BPRS)

    BPRS used to assess acute behavioral changes during the infusions. Four key BPRS items for the positive (+) symptoms of psychosis will be used: conceptual disorganization, hallucinatory behavior, suspiciousness, and unusual thought content. Three items representing the negative (-) symptoms of psychosis will also be used: blunted affect, emotional withdrawal, and motor retardation. Each item scored 1-7. Full scale from 7 - 49, with higher score indicating more symptoms.

    Measured: +240 minutes (after start of Placebo/Nitroprusside 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 Apr 2017
  2. Study start14 Feb 2017
  3. Primary completion12 Jun 2019
  4. Study completion12 Jun 2019

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 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
40 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03102736
Sponsor's protocol ID
GCO 16-1580
Status last verified
Jul 2020
First submitted
31 Mar 2017
Last updated
2 Jul 2020
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Bevilacqua L, Charney A, Pierce CR, Richards SM, Jha MK, Glasgow A, Brallier J, Kirkwood K, Bagiella E, Charney DS, Murrough JW. Role of nitric oxide signaling in the antidepressant mechanism of action of ketamine: A randomized controlled trial. J Psychopharmacol. 2021 Feb;35(2):124-127. doi: 10.1177/0269881120985147.

    PubMed 33522376

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Ketamine and Nitroprusside in people with Depression, run by Icahn School of Medicine at Mount Sinai 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 7 inclusion and 22 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: finished, as of the sponsor's last update on 2 Jul 2020. 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. Some participants in this study may receive a placebo. 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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

Are results available for this study?

Yes. Results are posted in the registry (first posted 2 Jul 2020). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Montgomery-Asberg Depression Rating Scale (time frame: 24 hours after start of infusion). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03102736, which also lists 1 linked publication.

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 2 Jul 2020.

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