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Ketamine in Adolescents With Treatment-Resistant Depression

24. Januar 2020 aktualisiert von: University of Minnesota

Open-Label Intravenous Subanesthetic Ketamine for Adolescents With Treatment-Resistant Depression

This study will test the use of ketamine for treatment of depression in adolescents that have not responded to other treatments. We will also examine neurobiological mechanisms of treatment.

Studienübersicht

Status

Abgeschlossen

Bedingungen

Intervention / Behandlung

Detaillierte Beschreibung

Depression frequently emerges during adolescence and is associated with severe outcomes. Current interventions do not lead to remission for many adolescents. Treatment-resistant depression (TRD) in adolescence is an ominous prognostic indicator for a lifetime of suffering and increased risk for suicide. Efforts should be directed toward novel interventions that could alter this perilous course. Theoretically, restoration of healthy development during this critical window would substantially improve outcomes over the lifespan.

Ketamine is a noncompetitive, high-affinity antagonist of the N-methyl-D-aspartate type glutamate receptor that has long been used for induction and maintenance of anesthesia in children and adults, and recently has been investigated for its rapid antidepressant effects. Randomized, double-blind, saline-controlled trials in adults with TRD have demonstrated that a single, subanesthetic infusion of intravenous (IV) ketamine at 0.5 mg/kg over 40 minutes can produce a rapid (within 2 hours) antidepressant response (Ibrahim et al., 2011; Zarate et al., 2006). Recent evidence suggests that serial doses of ketamine may be even more effective and may lead to more prolonged remission (aan het Rot et al., 2010; Murrough et al., 2012). Our current research at using serial dosing of IV ketamine among adult veterans with TRD over a 2-week period has shown promising results, with a response rate of 92% among the 12 participants to date.

No results from any studies examining effectiveness of either single-dose or serial-dose ketamine have yet been published in adolescents with TRD. Because of the ongoing neurodevelopment in adolescence, which is thought to confer enhanced neuroplasticity, it is possible that adolescents with TRD could show greater responses and more sustained remission than adults with TRD. The biological mechanisms of depression impacted by ketamine are only now being uncovered in adults (Zarate et al., 2013). Characterization of the neural mechanisms underlying ketamine response or non-response in adolescents with TRD will represent a significant advance. The specific aims of this preliminary study are as follows:

Aim #1: To determine the efficacy of repeated-dose subanesthetic IV ketamine among adolescent patients with TRD.

Hypothesis: Based on previous results in adults with TRD, we predict that response rates will improve over the course of six treatments of ketamine.

Aim #2: To explore durability of antidepressant response to repeated dose of IV ketamine in a 4-week observational period.

Hypothesis: Based on the inherent neuroplasticity in adolescence due to ongoing neurodevelopment, adolescents may show a more durable clinical response than has been seen in adults.

Aim #3: To study the neurobiological mechanisms of response to ketamine. We will examine relevant biological systems using several different brain imaging indices and measures of intracellular functioning from peripheral blood.

Studientyp

Interventionell

Einschreibung (Tatsächlich)

14

Phase

  • Phase 2

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienorte

  • Vereinigte Staaten
    • Minnesota
      • Minneapolis, Minnesota, Vereinigte Staaten, 55454
        • University of Minnesota

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

12 Jahre bis 18 Jahre (Kind, Erwachsene)

Akzeptiert gesunde Freiwillige

Nein

Studienberechtigte Geschlechter

Alle

Beschreibung

Inclusion Criteria:

  • Male and female adolescents aged 12 to 18 years.
  • Presence of recurrent major depression without psychotic features confirmed by the Kiddie-Schedule for Affective Disorders and Schizophrenia - Parent and Lifetime Version (Kaufman et al., 1997).
  • Current depression severity measured by the Children's Depression Rating Scale (CDRS) (Poznanski, 1985) raw score greater than or equal to 36 at screening and the day ketamine is due to be received for the first time.
  • Current depressive episode resistant to treatment, defined as failure to achieve remission (elimination of symptoms and restoration of pre-morbid psychosocial functioning) from at least 2 antidepressant trials of different pharmacological classes. Systematic evaluation of previous antidepressant trials will be assessed by using the Antidepressant Treatment History Form (Sackeim, 2001).
  • If present, current antidepressant medication treatment must be dose stable for at least 2 months prior to beginning the study. (Patients will continue with current antidepressant treatment throughout the study. Based on our experience in current research at the VA Medical Center using serial ketamine for adult TRD, patients have shown positive results while continuing their current antidepressant treatment.)

Exclusion Criteria:

  • Inability to speak English
  • Inability or unwillingness to provide written informed consent
  • A history of Mental Retardation or any Pervasive Developmental Disorder
  • Current or lifetime diagnosis of schizophrenia, schizoaffective disorder, or psychosis Not Otherwise Specified.
  • Family history with a first degree relative with schizophrenia, schizoaffective disorder, or psychosis Not Otherwise Specified.
  • Diagnosis of seizures or other neurological disorders.
  • Comorbid diagnosis of substance abuse or dependence, current or past.
  • Clinically unstable medical illness.
  • Current use of the following medications: any barbiturates, any narcotics, any non-benzodiazepine hypnotics at doses higher than zolpidem 10 mg qhs or equivalent for insomnia.
  • For women: pregnancy (confirmed by baseline lab test).
  • The presence of any MRI contra-indications such as MRI-incompatible metals in the body or claustrophobia.

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Behandlung
  • Zuteilung: N / A
  • Interventionsmodell: Einzelgruppenzuweisung
  • Maskierung: Keine (Offenes Etikett)

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Experimental: ketamine
Intravenous ketamine 0.5 mg/kg over 40 minutes will be given 6 times over 2 weeks.
Arzneimittel: Ketamine
IV infusions of 0.5mg/kg of Ketamine hydrochloride over a 40-minute infusion period. Participants will receive a total of 6 doses over a 2-week period.

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Number of Responders Measured by Clinical Global Impression (CGI)
Zeitfenster: 2 weeks
Responders will be defined as those with CGI ratings (given by the study clinician) of 1 or 2 (much or very much improved). Patients that are given a scores of 3-7 (minimally improved to very much worse) will be considered non-responders.
2 weeks

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Children's Depression Rating Scale-Revised
Zeitfenster: 2 weeks
The CDRS-R measure is given in interview form to child and parent separately. A consensus is then created with best-estimate for 17 items (each with a range of 1-5 or 1-7) using both sources of information. The total score is the sum of 17 item scores, ranging from 17-113 with higher scores indicating greater depression symptoms.
2 weeks
Montgomery-Åsberg Depression Rating Scale (MADRS)
Zeitfenster: 2 weeks
MADRS is a 10-item clinician-administered inventory measuring depression symptoms. Items are scored on a scare from 0 (none) to 6 (constant). Total scores are a sum of the 10 item scores, ranging from 0 to 60, with higher scores indicating greater symptom severity.
2 weeks
Beck Depression Inventory-II (BDI-II)
Zeitfenster: 2 weeks
BDI-II is a 21-item self-report multiple-choice inventory that assesses the severity of depressive symptoms over the prior week. Items are rated on a 4-point scale ranging from 0 to 3. Total scores are a sum of the 21 item scores ranging from 0 to 63. Higher scores indicate more severe depression symptoms.
2 weeks
Change in Clinician Administered Dissociative States Scale (CADSS)
Zeitfenster: baseline, 2 weeks
CADSS is a 27-item instrument measuring symptoms of dissociative stress, with 19 items completed by the patient and 8 items completed by the clinician. Items are rated on a scale of 0 (not at all) to 4 (extreme). Total scores are a sum of the 27 item scores and range from 0 to 108, with higher scores indicating greater symptom severity.
baseline, 2 weeks
Maximum Change in Systolic Blood Pressure
Zeitfenster: 2 hours and 40 minutes
Vital signs were measured every 15 minutes, starting from the beginning of the infusion and ending 2 hours after the infusion ended (2 hours, 40 minutes total). Maximum increase of blood pressure compared to baseline was calculated.
2 hours and 40 minutes
Maximum Change in Diastolic Blood Pressure
Zeitfenster: baseline, 45 minutes post infusion
baseline, 45 minutes post infusion
Maximum Change in Heart Rate
Zeitfenster: 4 hours
4 hours
Maximum Decrease in Pulse Oximetry
Zeitfenster: 4 hours
4 hours

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

University of Minnesota

Publikationen und hilfreiche Links

Die Bereitstellung dieser Publikationen erfolgt freiwillig durch die für die Eingabe von Informationen über die Studie verantwortliche Person. Diese können sich auf alles beziehen, was mit dem Studium zu tun hat.

Allgemeine Veröffentlichungen

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn

1. September 2014

Primärer Abschluss (Tatsächlich)

1. März 2018

Studienabschluss (Tatsächlich)

1. März 2018

Studienanmeldedaten

Zuerst eingereicht

27. Februar 2014

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

3. März 2014

Zuerst gepostet (Schätzen)

5. März 2014

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

27. Januar 2020

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

24. Januar 2020

Zuletzt verifiziert

1. Januar 2020

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Schlüsselwörter

Zusätzliche relevante MeSH-Bedingungen

Andere Studien-ID-Nummern

  • 22225

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Ja

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

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