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Melatonin for Prevention of Delirium in Critically Ill Patients (MELLOW-1)

17 de outubro de 2017 atualizado por: Mount Sinai Hospital, Canada

Feasibility of Melatonin for Prevention of Delirium in Critically Ill Patients: a Multi-centre, Randomized, Placebo-controlled Study.

The purpose of this study is to determine the feasibility of conducting a randomized controlled trial (RCT) with melatonin for prevention of delirium in critically ill adult patients. The investigators hypothesize that melatonin, administered on a scheduled nightly basis during ICU admission, will be efficacious and safe for the prevention of delirium in critically ill adults.

Visão geral do estudo

Status

Desconhecido

Condições

Intervenção / Tratamento

Descrição detalhada

The available evidence indicates melatonin may decrease the incidence of delirium in non-critically ill patient populations; however, trials in the critically ill are lacking. The investigators hypothesize that melatonin, administered on a scheduled nightly basis during ICU admission, will be efficacious and safe for the prevention of delirium in critically ill adults. The null hypothesis is that there is no difference in delirium incidence between placebo and melatonin. Prior to conducting an adequately powered multi-centre, blinded randomized, placebo-controlled trial in critically ill patients, there is a need for a better understanding of melatonin pharmacokinetics (PK) in critically ill patients. This will help to determine appropriate dosing, drug administration issues (specifically protocol adherence), adverse drug effects, and recruitment rates based on inclusion and exclusion criteria.

The specific aim is to conduct a phase II triple blind, placebo-controlled randomized trial comparing two doses of melatonin (low dose = 0.5 mg and high dose = 2.0 mg) to assess the feasibility of a future full-scale RCT. Feasibility of the larger trial will be based on protocol adherence and participant recruitment rates. Data on PK properties of melatonin will be assessed to determine dosing for future studies of melatonin for delirium prevention in the critically ill.

Tipo de estudo

Intervencional

Inscrição (Antecipado)

69

Estágio

  • Fase 2

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

    • Ontario
      • Toronto, Ontario, Canadá, M5G1X5
      • Toronto, Ontario, Canadá
        • Recrutamento
        • Sunnybrook Health Sciences Centre
        • Contato:
        • Investigador principal:
          • Damon Scales, MD PhD
        • Investigador principal:
          • Louise Rose, PhD
    • Quebec
      • Montréal, Quebec, Canadá
        • Ainda não está recrutando
        • Hopital Du Sacre-Coeur
        • Contato:
        • Investigador principal:
          • David Williamson, PhD
        • Investigador principal:
          • Francis Bernard, MD

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. Critically ill patients ≥18 years of age
  2. Anticipated ICU stay of >48 hours
  3. Able to receive enteral administration of study drug (i.e. by mouth or any feeding tube = naso- or oro- or percutaneous gastric or post-pyloric feeding tube)
  4. Consent to participate.

Exclusion Criteria:

  1. ICU admission of >48 hours prior to screening
  2. Unable to assess for delirium (e.g. comatose defined as SAS 1 or 2 or either 'No Response' Score A or B on ICDSC, chemically paralyzed with neuromuscular blocking drugs)
  3. Screened delirium positive prior to randomization (ICDSC score ≥4 out of 8)
  4. Anticipated withdrawal in next 48 hours
  5. Known history of severe cognitive or neurodegenerative disease (e.g. dementia, Parkinson's disease) or severe structural brain injury (e.g. traumatic brain injury, intracranial hemorrhage) as the ICDSC assessment tool has not been validated in these patient populations
  6. Unable to communicate in English or French (Montreal site)
  7. Contraindications to receiving any enteral medication (defined as absolute contraindication to enteral nutrition such as gastrointestinal obstruction, perforation, recent upper GI surgery, no enteral access)
  8. Active seizures
  9. Known pregnancy
  10. Legal blindness
  11. Known allergy to melatonin

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: Prevenção
  • Alocação: Randomizado
  • Modelo Intervencional: Atribuição Paralela
  • Mascaramento: Quadruplicar

Armas e Intervenções

Grupo de Participantes / Braço
Intervenção / Tratamento
Comparador Ativo: Enteral melatonin 0.5 mg
Melatonin 0.5 mg from the 1mg/mL oral suspension qs to 5 mL with Oral Mix SF (sugar-free flavoured suspending vehicle) (final concentration of 0.1 mg/mL; final volume in the oral syringe will be 5 mL)
Study drug will be given at 21:00 - 23:59 daily, starting on the day of enrolment until ICU discharge, death, or up to 14 days, as most critically ill patients are at greatest risk of delirium in the first two weeks of admission. The study medication will be given by mouth (PO or per os) or if needed, via the feeding tube followed by a flush with 20mL water. Doses can be given up to midnight if administration needs to be delayed for procedures or investigations.
Outros nomes:
  • N-acetil-5-metoxitriptamina
Comparador Ativo: Enteral melatonin 2 mg
Melatonin 2 mg from the 1mg/mL oral suspension qs to 5 mL with Oral Mix SF (sugar-free flavoured suspending vehicle) (final concentration 0.4 mg/mL; final volume in the oral syringe will be 5 mL)
Study drug will be given at 21:00 - 23:59 daily, starting on the day of enrolment until ICU discharge, death, or up to 14 days, as most critically ill patients are at greatest risk of delirium in the first two weeks of admission. The study medication will be given by mouth (PO or per os) or if needed, via the feeding tube followed by a flush with 20mL water. Doses can be given up to midnight if administration needs to be delayed for procedures or investigations.
Outros nomes:
  • N-acetil-5-metoxitriptamina
Comparador de Placebo: Enteral matched placebo
Melatonin 0 mg qs to 5 mL with Oral Mix SF (sugar-free flavoured suspending vehicle) (final concentration 0 mg/mL; final volume in the oral syringe will be 5 mL)
Study drug will be given at 21:00 - 23:59 daily, starting on the day of enrolment until ICU discharge, death, or up to 14 days, as most critically ill patients are at greatest risk of delirium in the first two weeks of admission. The study medication will be given by mouth (PO or per os) or if needed, via the feeding tube followed by a flush with 20mL water. Doses can be given up to midnight if administration needs to be delayed for procedures or investigations.

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
Feasibility: Study adherence
Prazo: 1 year
Investigators will calculate protocol adherence as the overall proportion of administered doses in the prescribed dose administration window (between 21:00 and to 23:59 hours) divided by total number of eligible study days.
1 year

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
Feasibility: Trial recruitment
Prazo: 1 year
Proportion of ICU patients screened that meet study inclusion criteria, the number of patients excluded and reasons for exclusion, and the consent rate of eligible participants.
1 year
Feasibility: Time in motion (minutes)
Prazo: 1 year
Research coordinators at each site will capture the amount of time (minutes) taken to screen, consent, and enrol patients, complete study procedures, and collect data.
1 year
Pharmacokinetic: Peak melatonin concentration (Cmax)
Prazo: 24 hours

Peak melatonin concentration. Plasma melatonin concentrations measured by mass spectrometry. N=5 from each study arm of Mount Sinai Hospital site.

On study day 1, eight blood samples (4 mL each) will be collected at the following intervals, from the time of first study drug dose to the following morning (time 0, 0.5, 1, 2, 4, 6, 8, 12 hours).

24 hours
Pharmacokinetic: Time of peak melatonin concentration (Tmax)
Prazo: 24 hours

Time of peak melatonin concentration (Tmax). Plasma melatonin concentrations measured by mass spectrometry. N=5 from each study arm of Mount Sinai Hospital site.

On study day 1, eight blood samples (4 mL each) will be collected at the following intervals, from the time of first study drug dose to the following morning (time 0, 0.5, 1, 2, 4, 6, 8, 12 hours).

24 hours
Pharmacokinetic: Morning melatonin concentration (C9AM)
Prazo: 24 hours

Morning melatonin concentration (C9AM). Plasma melatonin concentrations measured by mass spectrometry. N=5 from each study arm of Mount Sinai Hospital site.

On study day 1, eight blood samples (4 mL each) will be collected at the following intervals, from the time of first study drug dose to the following morning (time 0, 0.5, 1, 2, 4, 6, 8, 12 hours).

24 hours
Pharmacokinetic: Melatonin half-life (T½)
Prazo: 24 hours

Melatonin half-life (T½). Plasma melatonin concentrations measured by mass spectrometry. N=5 from each study arm of Mount Sinai Hospital site.

On study day 1, eight blood samples (4 mL each) will be collected at the following intervals, from the time of first study drug dose to the following morning (time 0, 0.5, 1, 2, 4, 6, 8, 12 hours).

24 hours
Pharmacokinetic: Mean apparent clearance (CL/F)
Prazo: 24 hours

Mean apparent clearance (CL/F). Plasma melatonin concentrations measured by mass spectrometry. N=5 from each study arm of Mount Sinai Hospital site.

On study day 1, eight blood samples (4 mL each) will be collected at the following intervals, from the time of first study drug dose to the following morning (time 0, 0.5, 1, 2, 4, 6, 8, 12 hours).

24 hours
Pharmacokinetic: Mean apparent volume distribution (V/F)
Prazo: 24 hours

Mean apparent volume distribution (V/F). Plasma melatonin concentrations measured by mass spectrometry. N=5 from each study arm of Mount Sinai Hospital site.

On study day 1, eight blood samples (4 mL each) will be collected at the following intervals, from the time of first study drug dose to the following morning (time 0, 0.5, 1, 2, 4, 6, 8, 12 hours).

24 hours
Pharmacokinetic: Area under the concentration-time curve (AUC)
Prazo: 24 hours

Area under the concentration-time curve (AUC). Plasma melatonin concentrations measured by mass spectrometry. N=5 from each study arm of Mount Sinai Hospital site.

On study day 1, eight blood samples (4 mL each) will be collected at the following intervals, from the time of first study drug dose to the following morning (time 0, 0.5, 1, 2, 4, 6, 8, 12 hours).

24 hours
Clinical: Adverse events
Prazo: 14 days
Adverse events reported by the participant, family, or treating team. The following potential adverse effects will be collected: morning drowsiness (Sedation Agitation Scale (SAS) score <3 or patient's self report of drowsiness between 07:00h and 12:00h), headache, and vivid dreams.
14 days
Clinical: Delirium incidence
Prazo: 14 days
Intensive Care Delirium Screening Checklist (ICDSC) administered daily. Delirium defined as an ICDSC score ≥4.
14 days
Clinical: Delirium time to onset and duration (days)
Prazo: 14 days
Time to onset of first ICDSC score ≥4, and number of days with ICDSC score ≥4.
14 days
Clinical: Sleep
Prazo: 14 days
Richards Campbell Sleep Questionnaire (RCSQ) administered daily, where possible. Patients with or without the assistance of their nurse will be asked to complete the questions of the RCSQ each morning. Nurses will not complete the RCSQ if the patient is unable to verbalize, as poor correlation has been shown between patient and nursing scores.
14 days
Clinical: Duration of mechanical ventilation
Prazo: ICU admission
Duration of mechanical ventilation (days)
ICU admission
Clinical: ICU length of stay
Prazo: ICU admission
Duration of stay for index ICU admission (days)
ICU admission
Clinical: Hospital length of stay
Prazo: 1 year
Duration of stay for admission involving trial enrolment (days)
1 year
Clinical: ICU mortality
Prazo: 1 year
Number of deaths during index ICU admission
1 year
Clinical: Hospital mortality
Prazo: 1 year
Number of deaths during hospital admission
1 year

Colaboradores e Investigadores

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

Patrocinador

Colaboradores

Investigadores

  • Investigador principal: Lisa Burry, PharmD, Mount Sinai Hospital

Publicações e links úteis

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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)

12 de outubro de 2017

Conclusão Primária (Antecipado)

12 de outubro de 2018

Conclusão do estudo (Antecipado)

12 de outubro de 2019

Datas de inscrição no estudo

Enviado pela primeira vez

19 de novembro de 2015

Enviado pela primeira vez que atendeu aos critérios de CQ

24 de novembro de 2015

Primeira postagem (Estimativa)

26 de novembro de 2015

Atualizações de registro de estudo

Última Atualização Postada (Real)

19 de outubro de 2017

Última atualização enviada que atendeu aos critérios de controle de qualidade

17 de outubro de 2017

Última verificação

1 de outubro de 2017

Mais Informações

Termos relacionados a este estudo

Outros números de identificação do estudo

  • 4000145150

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

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