NCT04239963

Brief Summary

The overarching goal of the present study is to evaluate the effect of a subanesthetic dose of ketamine 24-hour post-injection on resting state functional connectivity, cognitive control, and reward learning.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
60

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Aug 2020

Longer than P75 for all trials

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

First Submitted

Initial submission to the registry

January 15, 2020

Completed
12 days until next milestone

First Posted

Study publicly available on registry

January 27, 2020

Completed
7 months until next milestone

Study Start

First participant enrolled

August 17, 2020

Completed
4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 28, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 28, 2024

Completed
Last Updated

October 30, 2024

Status Verified

October 1, 2024

Enrollment Period

4 years

First QC Date

January 15, 2020

Last Update Submit

October 28, 2024

Conditions

Outcome Measures

Primary Outcomes (5)

  • Feedback-related positivity (FRP) amplitudes over frontocentral scalp regions in response to rewarded trials versus no-reward trials

    Relative FRP response is the primary outcome measure for the probabilistic reward task (PRT).

    Baseline

  • Event-related negativity (ERN) amplitudes over frontocentral scalp regions in response to correct trials versus incorrect trials.

    Relative ERN response is the primary outcome measure for the flanker task.

    Baseline

  • Behavioral Performance on the Probabilistic Reward Task (PRT)

    The Probablilistic Reward Task operationalizes positive reinforcement learning

    Baseline

  • Behavioral Performance on the Flanker Task

    The Flanker Task is a cognitive task that measures response inhibition to assess the ability to suppress responses that are inappropriate in a particular context.

    Baseline

  • Rumination

    Severity of rumination will be assessed using the Rumination Response Scale (RRS). The RRS has a minimum score of 22 and a maximum score of 88. Higher scores indicate higher degrees of ruminative symptoms.

    Baseline

Study Arms (2)

Healthy Controls

Subjects who have no history of clinical depression or other psychological disorder

Current MDD

Subjects experiencing a current episode of Major Depressive Disorder.

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

We plan to recruit 30 TRD individuals with current MDD without psychotic features and 30 demographically matched healthy controls. All participants will be ketamine-naïve.

You may qualify if:

  • All genders, races, and ethnic origins, aged between 18 and 70;
  • DSM-5 diagnostic criteria for MDD (diagnosed with the use of the Structured Clinical Interview for DSM-5 (SCID-5));
  • A score of ≥32 on the Inventory of Depressive Symptomatology-Clinician Rated (IDS-C30).
  • Capable of providing written informed consent, and fluent in English;
  • Right-handed;
  • Treatment Resistant (as assessed using the MGH Antidepressant Response Questionnaire)
  • Have already decided to receive ketamine treatment as part of their standard clinical care
  • All genders, races, and ethnic origins, aged between 18 and 70;
  • Absence of medical, neurological, and psychiatric illness (including alcohol and substance abuse), as assessed by subject history and a structured clinical interview (SCID-I/NP);
  • A baseline Quick Inventory of Depressive Symptomatology (QIDS) score ≤ 5;
  • A baseline Hamilton Depression Rating Scale (HDRS) score ≤ 7;
  • Capable of providing written informed consent, and fluent in English;
  • Right-handed;
  • No first-degree relative with mood or psychotic disorder.

You may not qualify if:

  • Serious or unstable medical illness, including cardiovascular, hepatic, renal, respiratory, endocrine, neurologic or hematologic disease;
  • History of seizure disorder;
  • History or current diagnosis of any of the following DSM-5 psychiatric illnesses: schizophrenia, schizoaffective disorder, delusional disorder, psychotic disorders not otherwise specified, substance abuse disorder;
  • Clinical or laboratory evidence of hypothyroidism, hyperthyroidism, or other thyroid disorder that is not controlled by medication;
  • Substance use assessed by physician as dangerous for ketamine treatment;
  • Untreated glaucoma;
  • Complex post-traumatic stress disorder (PTSD) with dissociation;
  • Patients with a lifetime history of electroconvulsive therapy (ECT).
  • Participants with a lifetime history of ketamine use.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

McLean Hospital

Belmont, Massachusetts, 02478, United States

Location

MeSH Terms

Conditions

Depressive Disorder, Major

Condition Hierarchy (Ancestors)

Depressive DisorderMood DisordersMental Disorders

Study Officials

  • Diego Pizzagalli, PhD

    Mclean Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Director, Center for Depression, Anxiety and Stress Research

Study Record Dates

First Submitted

January 15, 2020

First Posted

January 27, 2020

Study Start

August 17, 2020

Primary Completion

August 28, 2024

Study Completion

August 28, 2024

Last Updated

October 30, 2024

Record last verified: 2024-10

Locations