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Plan de respuesta a crisis y ketamina para la ideación suicida en el servicio de urgencias

25 de septiembre de 2026 actualizado por: The University of Texas Health Science Center at San Antonio

Una prueba piloto aleatoria de ketamina intramuscular y planificación de respuesta a crisis para la prevención del suicidio en el departamento de emergencias

The goal of this randomized pilot trial is to assess the feasibility of administering a combination of 100mg intramuscular (IM) ketamine and Crisis Response Plan (a short psychosocial intervention) for patients with acute suicidality in the context of the Emergency Department setting. This study will assess a combination of a pharmacologic intervention and a psychosocial one. The pharmacologic intervention is a one-time dose of 100mg ketamine delivered intramuscularly (IM) while the patient is in the ED. The psychosocial intervention under study is a brief, patient-centered therapy which takes, on average, 30 minutes to administer. Both interventions will be administered only once. The main questions this study aims to answer are:

  • Determine if 100mg of IM ketamine and Crisis Response Plan in combination results in greater short-term reductions in suicidal ideation in adult patients who report acutely elevated suicide risk during an ED visit.
  • Examine potential weight-based dose response differences in the reductions in suicidal ideation to determine if future treatment protocols with IM ketamine may benefit from weight-based dosing.

Descripción general del estudio

Estado

Reclutamiento

Condiciones

Descripción detallada

This study is a phase II/III Clinical Pilot Trial. The study participants will be randomized to one of two groups: IM ketamine plus Crisis Response Planning (intervention group) or usual care (control group). Prior to treatment, we will obtain demographic and contact information for patients and for a friend/family member as a collateral reporter of symptom change and safety. As part of informed consent, participants will be warned about the potential for temporary effects of ketamine and provided an enrollment card to inform other care providers of their participation in a ketamine study. Participants will be weighed and complete a series of brief survey assessments. Clinical assessments such as history, physical examination, and routine laboratory testing will be collected as part of usual care. Ketamine and Crisis Response Planning will be administered, and study assessments will be repeated at 120 minutes posttreatment. To ensure the highest level of patient safety, we are proposing only to include patients who have already been cleared for a psychiatric hospitalization. This will also allow for close monitoring of symptom changes during the initial hours and days following treatment. Outcome measures will be collected at two hours, 3 days, and 1 month after the intervention. Research staff will collect assessments by telephone interview and/or visits. Consistent with established protocols, staff will be trained and supervised by STRONG STAR mental health professionals with expertise in evidence-based processes for assessing and responding to suicide risk. Trained and experienced therapists are available to meet with participants to develop a Crisis Response Plan at University Hospital.

Tipo de estudio

Intervencionista

Inscripción (Estimado)

24

Fase

  • Fase 2
  • Fase 3

Contactos y Ubicaciones

Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.

Estudio Contacto

  • Nombre: Stehanie Perez, MHA
  • Número de teléfono: 2104508973
  • Correo electrónico: perezs11@uthscsa.edu

Ubicaciones de estudio

    • Texas
      • San Antonio, Texas, Estados Unidos, 78229
        • Reclutamiento
        • University Hospital
        • Contacto:
        • Investigador principal:
          • Robert A De Lorenzo, MD

Criterios de participación

Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.

Criterio de elegibilidad

Edades elegibles para estudiar

18 años a 70 años (Adulto, Adulto Mayor)

Acepta Voluntarios Saludables

No

Géneros elegibles para el estudio

Todos

Descripción

Inclusion Criteria:

  • Adult men and women between the ages of 18 and 70 presenting to the Emergency Department with acute suicidal ideation.
  • Patient cleared for admission to the University Hospital inpatient psychiatric unit.
  • Decision to admit the patient to the inpatient unit or psychiatric stabilization unit made prior to consent to prevent study procedures from complicating or influencing the disposition and treatment as usual for suicidal patients reporting to the ED.
  • Individuals presenting to the ED for other complaints but found to have suicidal ideation necessitating admission will also be eligible.
  • Able to read and write English.

Exclusion Criteria:

  • Serious mental illness with active and significant signs of psychosis, mania, hallucinations, paranoia, agitation, and drug-induced or other toxidromic symptoms.
  • Acute intoxication with clinically significant symptoms (as defined by the attending clinician's assessment of patients' clinical sobriety).
  • The patient is not capable of understanding the research procedures and providing informed consent for themselves.
  • Lack of reliable means to be available for follow-up assessments (e.g, working mobile phone).
  • Persistent resting blood pressure lower than 90/60 or higher than 180/110, or persistent resting heart rate lower than 45 beats/minute or higher than 120 beats/minute.
  • Injuries requiring procedural sedation.
  • Pregnancy or breast feeding.
  • Known hypersensitivity to ketamine.
  • Legal or illegal use of ketamine in the previous 90 days.
  • End-stage or severe cardiovascular (e.g., ACS or decompensated heart failure), liver, or kidney disease.
  • Patient is a prisoner.
  • Patient is physically restrained or actively under custody of law enforcement. Once a patient is no longer under custody of law enforcement or physically restrained, the patient may be considered eligible and may consent to voluntary enrollment in the study.

Plan de estudios

Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.

¿Cómo está diseñado el estudio?

Detalles de diseño

  • Propósito principal: Otro
  • Asignación: Aleatorizado
  • Modelo Intervencionista: Asignación paralela
  • Enmascaramiento: Ninguno (etiqueta abierta)

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: Ketamine and Crisis Response Plan (CRP)

Individuals randomized to the experimental arm will receive 100mg intramuscular ketamine injection before completing the Crisis Response Plan. The average timeframe for the experimental arm is anticipated to be approximately 60 minutes of active treatment. Following ketamine administration, the subject will be monitored for 45 minutes with pulse oximetry and recurrent vital signs. The study team will record when the CRP is completed in relation to the ketamine injection.

100mg IM ketamine to be administered in conjunction with CRP. The ketamine injection will be administered first. Participants will be observed and have vital signs monitored for the first 45 minutes after administering medication in the ED, observing for immediate reactions. Afterwards, participants will continue to be monitored for potential late-term side effects on the inpatient unit. Ketamine will be given only after initial standard of care (SOC) treatment and screening studies have been initiated.

Otros nombres:
  • Ketamina

Crisis Response Plan is a brief, empirically-validated, Cognitive-Behavioral Therapy-based one-time therapy, and its administration typically takes 30-60 minutes. It begins with a narrative assessment (allowing patients to "tell their story") and concludes with collaboratively constructed plan that outlines strategies for the patient's self-management of future acute suicidal crises. Patients who engage in CRP are given an index card to keep with them that summarizes the emotional management strategies that they collaboratively generate with the CRP provider.

Otros nombres:
  • PCR
Sin intervención: Treatment as Usual

Individuals randomized to the no intervention arm will receive routine care from emergency providers and psychiatry staff.

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Feasibility of study interventions
Periodo de tiempo: 30 days

Number of enrolled subjects completing treatment within study parameters, with safety and side-effect profiles at or lower than published rates.

30 days

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Change in Beck Scale for Suicidal Ideation (SSI) Score
Periodo de tiempo: Baseline to 30 days

The Beck Scale for Suicidal Ideation (SSI) is a 21-item measurement that evaluates the presence and intensity of suicidal thoughts. Each item is scored on a scale from 0-2 with a total score of 0-38; with higher scores indicating higher levels of suicidal ideation.

Baseline to 30 days
Change in Depressive Symptoms Index-Suicidality Subscale (DSI-SS) Score
Periodo de tiempo: Baseline to 30 days

The Depressive Symptoms Index-Suicidality Subscale (DSI-SS) is a 4-item measure of suicidal ideation. Respondents rate each item on a 4-point scale ranging from 0-3. Responses are summed, and higher scores reflect more severe suicidal ideation (range: 0-12).

Baseline to 30 days
Change in Suicide Visual Analog Scale (S-VAS) Score
Periodo de tiempo: Baseline to 30 days

The Suicide Visual Analog Scale is a 1-item momentary assessment to evaluate severity of suicidal ideation. The item is scored from 0-100 and the total possible score range for the scale is therefore also 0-100. Lower scores indicate less extreme current urges toward self harm, whereas higher scores are indicative of more severe urges.

Baseline to 30 days

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Investigadores

  • Investigador principal: Robert De Lorenzo, MD, MSM, The University of Texas Health Science Center at San Antonio
  • Director de estudio: Romeo Fairley, MD, MPH, The University of Texas Health Science Center at San Antonio
  • Director de estudio: Alan Peterson, PhD, ABPP, The University of Texas Health Science Center at San Antonio
  • Director de estudio: Stacey Young-McCaughan, RN, PhD, The University of Texas Health Science Center at San Antonio

Fechas de registro del estudio

Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados ​​por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.

Fechas importantes del estudio

Inicio del estudio (Actual)

6 de enero de 2023

Finalización primaria (Estimado)

31 de diciembre de 2026

Finalización del estudio (Estimado)

30 de junio de 2027

Fechas de registro del estudio

Enviado por primera vez

12 de enero de 2023

Primero enviado que cumplió con los criterios de control de calidad

12 de enero de 2023

Publicado por primera vez (Actual)

25 de enero de 2023

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

30 de septiembre de 2026

Última actualización enviada que cumplió con los criterios de control de calidad

25 de septiembre de 2026

Última verificación

1 de septiembre de 2026

Más información

Términos relacionados con este estudio

Plan de datos de participantes individuales (IPD)

¿Planea compartir datos de participantes individuales (IPD)?

SÍ

Descripción del plan IPD

All collected de-identified participant data that underlie results in a publication will be shared in a peer-reviewed scientific publication once data analysis is complete.

Marco de tiempo para compartir IPD

Data will be made available upon conclusion of the study and dissemination of findings. It will be made available for five (5) years after the conclusion of the study.

Criterios de acceso compartido de IPD

Links to study documents and data will be shared on website following publication of study results to enable the creation and refinement of related projects' study design and procedures.

Tipo de información de apoyo para compartir IPD

  • PROTOCOLO DE ESTUDIO
  • SAVIA
  • CIF

Información sobre medicamentos y dispositivos, documentos del estudio

Estudia un producto farmacéutico regulado por la FDA de EE. UU.

Sí

Estudia un producto de dispositivo regulado por la FDA de EE. UU.

No

producto fabricado y exportado desde los EE. UU.

No

Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .

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