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Study identifier: NCT05450432 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Long-Term Maintenance With Ketamine and Esketamine for Reduction of Suicide in High-Risk Patients With Depression

Condition: Major Depressive Disorder  ·  Sponsor: Massachusetts General Hospital

PhasePhase 4
Planned participants100
Who can joinAll sexes, 18 Years to 70 Years
Healthy volunteersNo

About this study

The study will consist of a 24-week-long trial examining outcomes in patients with Major Depressive Disorder and suicidal ideation who will receive intravenous (IV) ketamine and intranasal (IN) esketamine, compared to a large sample of matched historical controls. Patients will be recruited from an inpatient psychiatric unit. Eligible patients who provided informed consent will be enrolled in the study that will include a eight IV ketamine treatments, 13 esketamine treatment visits, seven long assessment visits, five short assessment visits, and daily surveys. The study will examine the feasibility, tolerability, and efficacy of repeated IV ketamine followed by esketamine, as well as predictors of treatment response.

This description comes directly from the study's public registry record.

Talk to the study team

Cristina Cusin, MD  ·  617-724-5510  ·  mghketamindstudy@partners.org

Catherine Schuessler, BS  ·  617-643-7690  ·  mghketamindstudy@partners.org

Always discuss trial participation with your own doctor first.

Locations (1)

Massachusetts General HospitalBoston, Massachusetts, United StatesRecruiting

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Source record: clinicaltrials.gov/study/NCT05450432