Trial to Evaluate the Effects of Naltrexone in Nonsuicidal Self-injury (NiNsSIB)

May 20, 2026 updated by: Yong Min Ahn, Seoul National University Hospital

A Randomized, Double-Blinded Clinical Trial to Evaluate the Effects of Naltrexone in Improving Nonsuicidal Self-injurious Behavior

The goal of this clinical trial is to learn if naltrexone works to treat nonsuicidal self-injurious behavior in adolescents and adults.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Recruiting participants with nonsuicidal self-injurious behavior and randomizing them to the experiment group and the control group at a 1:1 ratio, the test group administers the experiment drug naltrexone along with the general treatment, and the control group provides a placebo. Clinical evaluation including the frequency of self-injurious behavior is conducted every two weeks. The investigator and participants will double-blinded. Analyze the relationship between changes in clinical symptoms and socio-demographic characteristics, diagnosis, clinical characteristics, and anticipated to discover predictors of treatment effectiveness.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
150

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • South Korea
      • Seoul, South Korea, 03080
        • Seoul National University Hospital
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Age: 16 years of age or older
  • Clinical interviews meet DSM-5's nonsuicidal self-injury diagnostic criteria
  • Nonsuicidal self-injurious behavior has been observed more than once in the past two months
  • Obsessive Compulsive Drinking Scale general craving item 2 or more points (strong desire)
  • Self-injurious behavior continues even with 4 weeks of general psychiatric treatment for underlying disease
  • Anyone who can independently read and fill out the questionnaire and speak Korean
  • Who understand the written consent and voluntarily agree to participate in the study
  • Female participants of childbearing age must be negative on urine pregnancy test at screening

Exclusion Criteria:

  • currently in psychotic or manic conditions
  • currently experiencing serious suicidal thoughts
  • history of substance-related disorders including opioid
  • do not agree to use very effective contraception from the time of signing the test subject's consent form to the end of study period (non-fertility women and postmenopausal women excluded from the contraception requirements)
  • Severe medical conditions (angina pectoris, myocardial infarction, arrhythmia, any cancer that is not in remission, hypothyroidism, hyperthyroidism, diabetes, hepatitis B, hepatitis C, epilepsy, dementia, HIV infection)
  • intellectual disability or organic brain damage
  • difficulty reading and writing Korean
  • taking opioid antagonists (methadone, buprenorphine, etc.)
  • on an opiate painkiller
  • currently opiate dependence
  • acute opiate withdrawal symptoms
  • naloxone-induced test is positive or the urine test is positive for opiates
  • have been sensitized to this drug
  • acute hepatitis, liver failure, severe liver failure
  • renal disease
  • hypersensitivity reaction to the main ingredient or other ingredients of this drug
  • a pregnant woman, a woman who may be pregnant, or a lactating woman
  • Since this drug contains lactose, genetic problems such as galactose intolerance, Lapp lactase deficiency, glucose-galactose malabsorption, etc
  • active liver disease

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: experimental group
naltrexone 50mg
Drug: Naltrexone
naltrexone 50mg for 6 weeks
Other Names:
  • Revia
Placebo Comparator: comparison group
placebo
Drug: Placebo
placebo for 6 weeks

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Frequency of nonsuicidal self-injurous behavior
Time Frame: 6 weeks
Total number of nonsuicidal self-injurous behavior during study period
6 weeks

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Deliberate Self-harm Inventory
Time Frame: 6 weeks
change of NSSI frequency acquired by Deliberate Self-harm Inventory (the outcome of this scale does not have score)
6 weeks
Clinical Global Impressions
Time Frame: 6 weeks
change of Clinical Global Impressions scale the minimum and maximum values are 1 to 7, higher scores mean worse outcome
6 weeks
Obsessive Compulsive Drinking Scale
Time Frame: 6 weeks
change of Obsessive Compulsive Drinking Scale the minimum and mixiumum values are 0 to 40, higher scores mean a worse outcome
6 weeks
Eating Disorder Examination-Questionnaire
Time Frame: 6 weeks
change of Eating Disorder Examination-Questionnaire the minimum and mixiumum values are 0 to 6, higher scores mean a worse outcome
6 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Seoul National University Hospital

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Whanin Pharmaceutical Company

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Yong Min Ahn, M.D, Ph.D, Seoul National University Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 1, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
February 28, 2027

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
May 31, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
September 11, 2024

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 30, 2024

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
October 2, 2024

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
May 22, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 20, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • AYM-NiNsSIB

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

IPD Plan Description

undecided yet

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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