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Hemadsorção para aumentar a eliminação de drogas em intoxicações (MATRIX)

18 de setembro de 2026 atualizado por: Universitair Ziekenhuis Brussel

In this trial the investigators assess the effectiveness of applying a hemadsorber (cytosorb®) in removing benzodiazepines or tricyclic antidepressants in intoxicated patients admitted to ICU with prolonged impaired consciousness. This is a one arm interventional investigation where a hemadsorption filter is applied in patients fulfilling inclusion criteria 8 hours after admission. Plasma titer of the neurodepressing drug will be collected sequentially both before and after start of hemadsorption to evaluate the speed of drug elimination before and after application of a hemadsorption filter. Pre- and post filter titers will be obtained to evaluate adsorbability and to evaluate time to saturation of the filter.

Visão geral do estudo

Status

Recrutamento

Intervenção / Tratamento

Descrição detalhada

In this prospective interventional study with medical device, the investigotors would include 18 patients admitted to ICU after an intoxication with a quantifiable neurodepressing drugs (type benzodiazepines or tricyclic antidepressants) and with impaired consciousness defined as need for intubation or need for Flumazenil to prevent intubation. Naloxone is administered per standard of care to identify if opioid intoxications is the main reason of neurodepression. Patients requiring mechanical ventilation for other reasons than impaired consciousness due to this intoxication or indication for prolonged use of sedatives are excluded.

Patients with at least one risk factor for delayed drug elimination (Chronic kidney disease G3b or CHILD-Pugh B or C) and persisting impaired consciousness after eight hours (including patients with persisting need for flumazenil) and having 5 plasma titers of the neurodepressing drug with intervals of 2 hours will be initiated on a hemadsorption filter after contact between the treating team and either dr. Michaël Mekeirele or dr. Tim Balthazar to verify inclusion criteria. Patients fulfilling inclusion criteria but lacking the 5 plasma titers will get additional plasma titers with intervals of 2 hours until 5 plasma titers are obtained. If these patients still fulfill inclusion criteria at that time then a hemadosorption filter will be initiated.

After starting hemadsorption a plasma titer pre- and post filter will be obtained after 15 minutes and every 4 hours after starting hemadsorption for the first 24 hours. After this timepoint additional plasma titers will be obtained every 24 hours until stopping hemadsorption or normalisation of the plasma titer.

Tipo de estudo

Intervencional

Inscrição (Estimado)

18

Estágio

  • Não aplicável

Contactos e Locais

Esta seção fornece os detalhes de contato para aqueles que conduzem o estudo e informações sobre onde este estudo está sendo realizado.

Contato de estudo

Estude backup de contato

Locais de estudo

    • Brussels Capital
      • Brussels, Brussels Capital, Bélgica, 1090
        • Recrutamento
        • Universitair Ziekenhuis Brussel
        • Contato:
        • Contato:
        • Investigador principal:
          • Michaël Mekeirele, Medical Doctor

Critérios de participação

Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.

Critérios de elegibilidade

Idades elegíveis para estudo

18 anos e mais velhos (Adulto, Adulto mais velho)

Aceita Voluntários Saudáveis

Não

Gêneros Elegíveis para o Estudo

Tudo

Descrição

Inclusion Criteria:

  1. older than18 years
  2. Admission to ICU
  3. GCS < 8 or requiring Flumazenil 8 hours after hospital admission
  4. Having an intoxication with a benzodiazepine or tricyclic antidepressant that we can measure/quantify
  5. Having a risk factor for delayed drug elimination defined as either Cirrhosis CHILD B/C or chronic kidney insufficiency KDIGO 3b or worse

Exclusion Criteria:

  1. Pregnant patient
  2. Patients in chronic dialysis before admission
  3. Need for mechanical ventilation for other reasons than intoxications (e.g. pneumonia, neurotrauma)
  4. Concomitant pathology requiring continued intravenous sedation
  5. Known history of seizures
  6. Contra-indication to heparin use
  7. DNR restricting the use of mechanical ventilation or dialysis

Plano de estudo

Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.

Como o estudo é projetado?

Detalhes do projeto

  • Finalidade Principal: Tratamento
  • Alocação: N / D
  • Modelo Intervencional: Atribuição de grupo único
  • Mascaramento: Nenhum (rótulo aberto)

Armas e Intervenções

Grupo de Participantes / Braço
Intervenção / Tratamento
Experimental: Hemadsorption

Hemadsorption via a dialysis catheter will be performed in patients who are unconscious due to an intoxication with quantifiable benzodiazepines or tricyclic antidepressants 8 hours after admission. Before and after application fo this hemadsorption filter plasma titers of this drug will be obtained. After application of the hemadsorption filter pre- and post-filter titers will be obtained.

Plasma titers neurodepressing drug:

  • At admission to the hospital (standard of care)
  • 2 hours after admission (+/- 15 minutes)
  • 4 hours after admission (+/- 15 minutes)
  • 6 hours after admission (+/- 15 minutes)
  • 8 hours after admission (+/- 15 minutes)
  • Just before start hemadsorption

Hemadsorption via dialysis catheter in patients still fulfilling inclusion criteria 8 hours after admission.

Subsequent plasma titers pre- and post-hemadosorption filter:

  • 15 minutes after start of hemadsorption (+ 15 minutes)
  • 4 hours after start of hemadsorption (+/- 15 minutes)
  • 8 hours after start of hemadsorption (+/- 15 minutes)
  • 12 hours after start of hemadsorption (+/- 15 minutes)
  • 16 hours after start of hemadsorption (+/- 15 minutes)
  • 20 hours after start of hemadsorption (+/- 15 minutes)
  • 24 hours after start of hemadsorption (+/- 15 minutes)
  • Every other 24 hours until cessation of hemadsorption or normalization of the plasma titer (+/- 15 minutes)

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
Difference in time to upper limit of normal of the dosed drug with versus without hemadsorption
Prazo: From enrollment to the end of treatment (cesation hemadsorption) +/- 3 days

Based on plasma titers before start of hemadsorption the half life of the drug can be calculated. A theoretical intersection with the upper boundary of normal of the intoxicated drug plasma titer can be calculated. This will be statistically compared to the real time of attaining this titer after start of hemadsorption.

From enrollment to the end of treatment (cesation hemadsorption) +/- 3 days

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
Adsorbability of the individual neurodepressing drugs
Prazo: From enrollment to the end of treatment (cesation hemadsorption) +/- 3 days

Comparing the pre- and post filter titer of the neurodepressing drug the adsorbability can be observed.

From enrollment to the end of treatment (cesation hemadsorption) +/- 3 days
Time to saturation of hemadsorption filter
Prazo: From enrollment to the end of treatment (cesation hemadsorption) +/- 3 days

Comparing the pre- and post filter titer of the neurodepressing drug the time to saturation can be observed

From enrollment to the end of treatment (cesation hemadsorption) +/- 3 days
Catheter related complications
Prazo: From enrollment to the removal of the dialysis catheter +/- 3 days

Catheter related complications (eg bleeding, infection) will be noted

From enrollment to the removal of the dialysis catheter +/- 3 days
Seizures during hemadsorption therapy
Prazo: From enrollment to the end of treatment (cesation hemadsorption) +/- 3 days

Seizures during hemadsorption therapy will be noted

From enrollment to the end of treatment (cesation hemadsorption) +/- 3 days
Bleeding during hemadsorption therapy
Prazo: From enrollment to the end of treatment (cesation hemadsorption) +/- 3 days

Bleeding during hemadsorption therapy will be noted

From enrollment to the end of treatment (cesation hemadsorption) +/- 3 days
Cost effectiveness of applying a Cytosorb® hemadsorption filter
Prazo: From enrollment to discharge from ICU (+/- 1 week)

Duration of ICU stay, duration of ventilation, cost of a hemadsorption filter and disposables amongst others will be used for an evaluation of cost effectiveness

From enrollment to discharge from ICU (+/- 1 week)
Duration mechanical ventilation
Prazo: From enrollment to extubation (+/- 3 days)

Time to extubation and stop of flumazenil will be noted

From enrollment to extubation (+/- 3 days)
Duration ICU stay
Prazo: From enrollment to discharge from ICU (+/- 1 week)

Time to discharge will be noted

From enrollment to discharge from ICU (+/- 1 week)
Need and duration vasopressors
Prazo: From enrollment to stop of vasopressors (+/- 3 days)

Time untill discontinuation of vasopressors will be noted

From enrollment to stop of vasopressors (+/- 3 days)

Colaboradores e Investigadores

É aqui que você encontrará pessoas e organizações envolvidas com este estudo.

Investigadores

  • Investigador principal: Michaël Mekeirele, Medical Doctor, Universitair Ziekenhuis Brussel

Datas de registro do estudo

Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados ​​pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.

Datas Principais do Estudo

Início do estudo (Real)

1 de maio de 2025

Conclusão Primária (Estimado)

1 de dezembro de 2028

Conclusão do estudo (Estimado)

1 de janeiro de 2029

Datas de inscrição no estudo

Enviado pela primeira vez

2 de abril de 2025

Enviado pela primeira vez que atendeu aos critérios de CQ

3 de abril de 2025

Primeira postagem (Real)

10 de abril de 2025

Atualizações de registro de estudo

Última Atualização Postada (Real)

23 de setembro de 2026

Última atualização enviada que atendeu aos critérios de controle de qualidade

18 de setembro de 2026

Última verificação

1 de setembro de 2026

Mais Informações

Termos relacionados a este estudo

Outros números de identificação do estudo

  • CIV-24-12-050174

Plano para dados de participantes individuais (IPD)

Planeja compartilhar dados de participantes individuais (IPD)?

NÃO

Descrição do plano IPD

Single center study

Informações sobre medicamentos e dispositivos, documentos de estudo

Estuda um medicamento regulamentado pela FDA dos EUA

Não

Estuda um produto de dispositivo regulamentado pela FDA dos EUA

Não

Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .

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