Examining Mu Opioid Mechanisms of Ketamine's Rapid Effects in OCD (MKET2)

NCT ID: NCT05940324

Last Updated: 2024-12-19

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

150 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-02-24

Study Completion Date

2028-11-30

Brief Summary

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The purpose of this study is to understand how ketamine works in the brain to bring about a reduction in OCD symptoms.

Detailed Description

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The proposed mechanistic trial would be the first to probe the role of ketamine's opioid properties in modulating fronto-striatal circuitry and bringing about reduction of OCD symptoms.

Conditions

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Obsessive-Compulsive Disorder

Keywords

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OCD Ketamine Naltrexone MRI Brain Imaging OCD symptoms Obsessive-Compulsive Disorder

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Participants will be randomized with a 1:1 allocation to either IV ketamine + oral placebo or IV ketamine + oral opioid antagonist naltrexone
Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Ketamine + Naltrexone

OCD patients in this arm will receive 0.5mg/kg of ketamine - one single infusion. fMRI will be acquired before, during, and after infusion.

Oral naltrexone 50 mg will be administered before the infusion.

Group Type EXPERIMENTAL

Ketamine

Intervention Type DRUG

Ketamine is an FDA-approved dissociative anesthetic.

Naltrexone Pill

Intervention Type DRUG

Naltrexone is an oral opioid antagonist approved by the Food and Drug Administration (FDA) to treat both alcohol use disorder (AUD) and opioid use disorder (OUD)

Ketamine + Placebo

OCD patients in this arm will receive 0.5mg/kg of ketamine - one single infusion. fMRI will be acquired before, during, and after infusion.

An oral inactive placebo will be administered before the infusion.

Group Type PLACEBO_COMPARATOR

Ketamine

Intervention Type DRUG

Ketamine is an FDA-approved dissociative anesthetic.

Placebo pill

Intervention Type OTHER

An oral inactive placebo pill will be administered to preserve the blinded nature of the study.

Healthy Volunteers

Healthy volunteers will have one fMRI scan visit.

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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Ketamine

Ketamine is an FDA-approved dissociative anesthetic.

Intervention Type DRUG

Naltrexone Pill

Naltrexone is an oral opioid antagonist approved by the Food and Drug Administration (FDA) to treat both alcohol use disorder (AUD) and opioid use disorder (OUD)

Intervention Type DRUG

Placebo pill

An oral inactive placebo pill will be administered to preserve the blinded nature of the study.

Intervention Type OTHER

Other Intervention Names

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Ketamine Hydrochloride Ketalar Naltrexone

Eligibility Criteria

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Inclusion Criteria

* Ages 18-65
* Meet the criteria for OCD diagnosis
* Failed at least 1 prior trial of standard first-line OCD treatment
* Agree to the following lifestyle modifications: comply with requirements for fasting prior to the Experimental Session, not enroll in any other interventional clinical trials during the duration of the study, and commit to medication study procedures.
* Able to provide informed consent


* Ages 18-65
* Able to provide informed consent

Exclusion Criteria

* prior naltrexone or ketamine use/exposure
* Any current or past medical/psychiatric condition that makes participation unsafe in the opinion of the investigator or study physician
* Pregnant or nursing, or able to become pregnant and are not practicing an effective means of birth control
* the presence of metal in the body that is contraindicated for MRI scans

Eligibility Criteria for Healthy Volunteers:


* current or past use of psychotropic medication
* pregnant or nursing females
* the presence of metal in the body that is contraindicated for MRI scans
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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National Institute of Mental Health (NIMH)

NIH

Sponsor Role collaborator

Stanford University

OTHER

Sponsor Role lead

Responsible Party

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Carolyn Rodriguez

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Department of Psychiatry & Behavioral Sciences

Stanford, California, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Pavithra Mukunda, MS

Role: CONTACT

Phone: 6504972578

Email: [email protected]

Carolyn I Rodriguez, MD, PhD

Role: CONTACT

Phone: (650) 723-6158

Email: [email protected]

Facility Contacts

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OCD Research

Role: primary

Other Identifiers

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1R01MH133553-01

Identifier Type: NIH

Identifier Source: secondary_id

View Link

70954

Identifier Type: -

Identifier Source: org_study_id