Ketamine for Relapse Prevention in Recurrent Depressive Disorder

Status Terminated

Clinical Trial Summary

Randomised, controlled, parallel-group, pilot clinical trial of ketamine vs. midazolam for depression relapse prevention in persons at high risk. The main purpose of the pilot study is to assess trial processes to help inform a future definitive trial.

Clinical Trial Description

Participants will be recruited at admission to St Patrick's University Hospital for treatment of the Diagnostic and Statistical Manual of Mental Disorders, 4th Edition (DSM-IV)-diagnosed recurrent unipolar depression and followed-up weekly to assess recovery according to standard criteria. Blood samples for epigenetic studies will be taken at baseline. Treatment-as-usual will continue throughout the entire trial. Participants who meet standardised response criteria will then be invited to be randomised to course of four two-weekly ketamine or midazolam (active comparator) infusions. Block randomisation will be independently performed. Physical, psychotomimetic and cognitive outcomes will be monitored before, during and after infusions. Blood samples will be taken at four time-points in the first infusion session and before the final infusion for neuroplasticity biomarker studies.Trial Interventions: participants will receive four two-weekly infusions of either ketamine at 0.05mg/kg or midazolam at 0.045mg/kg. All infusions will be administered by a consultant anaesthetist. Repeated infusions of ketamine have been shown to be safe and well-tolerated by patients with mental illness. Minor haemodynamic changes and psychotomimetic side-effects can occur and will be assessed regularly during infusions and for 200 minutes afterwards.

Participants will be followed up over six months to assess for relapse according to standardised criteria. This is the highest-risk period for relapse and investigators hypothesize that ketamine will provide additional neurotrophic support (assessed by the laboratory biomarker project) which will result in lower relapse rates when compared to midazolam. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT02661061
Study type	Interventional
Source	St Patrick's Hospital, Ireland
Contact
Status	Terminated
Phase	Phase 1
Start date	December 2015
Completion date	May 23, 2018

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Ketamine for Relapse Prevention in Recurrent Depressive Disorder — KINDRED

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms