Vitamin D in Ventilated ICU Patients (R21 HL-110044)
10 de novembro de 2016 atualizado por: Greg S. Martin, M.D., M.Sc., Emory University
High-Dose Vitamin D and Antimicrobial Peptide Expression in Lung Failure
The increasing rate of hospital-acquired infection and antibiotic resistance are major causes of prolonged ICU stay and death in hospitalized patients. The enormous impact of ICU-related infection demands the need for cost-effective therapies that can be rapidly implemented to improve patient immune response to control infection. Unfortunately, little high-quality comparative effectiveness research has been performed on micronutrient treatment regimens as methods to decrease hospital-acquired infection in critically ill patients. Critically ill medical and surgical patients have an extremely high prevalence of vitamin D insufficiency.
We will perform a rigorous, double-blind, randomized, controlled, pilot clinical trial in ventilator-dependent ICU patients to test the clinical/metabolic safety and efficacy of two doses of oral high-dose vitamin D3 therapy versus standard therapy (no supplemental vitamin D). The primary endpoint is to test whether high-dose regimens [either 50,000 or 100,000 international units (IU) of enteral vitamin D3 given daily for 5 consecutive days (total dose = 250,000 or 500,000 IU, respectively) increase plasma 25(OH)D concentrations into a desirable range (> 30 ng/mL).
Visão geral do estudo
Status
Concluído
Condições
Intervenção / Tratamento
Descrição detalhada
- We will evaluate, over 12 weeks, the safety and efficacy of two high-dose vitamin D3 regimens in severely ill ICU patients. Vitamin D or placebo ( depending on study arm) will be given sequentially in divided doses for 5 days
- We will explore whether these vitamin D regimens are capable of increasing the production of key antimicrobial peptides LL-37 and hBD-2 ( substances produced by our bodies to fight infections), in both the blood and in lung.
- We will determine whether a higher vitamin D level in the blood is associated with a decrease in hospital infection rates and other complications in high-risk ICU patients with respiratory failure.
Study Design:
Enrollment goal is 36 patients. Once consent is obtained subjects will be randomly assigned to one of three study groups. Each group consists of 12 patients with enteral access ; a placebo arm, an arm where subjects receive 50,000 IU of Vitamin D for 5 days, and a third arm where subjects receive 100,000 IU of Vitamin D for 5 days.
Methods: Baseline blood samples (25-hydroxyvitamin D, vitamin D binding protein, ionized calcium, LL-37,and hBD-2) will be taken on study day 7,14,21,28,84 days. On study day 1 and 8, LL-37, hBD-2, cathelicidin from BAL fluid will also be analyzed. Patients will be given either placebo, Vitamin D3 50,000 IU x 5 days (total 250,000 IU) or Vitamin D3 100,000 IU x 5 days (total 500,000 IU) with an intention to treat model. Baseline data on the patients including demographic, laboratory, documented infections, severity illness score (APACHE II) and organ dysfunction score (SOFA) will be collected. ELISA assay on the serum and BAL will be performed.
Tipo de estudo
Intervencional
Inscrição (Real)
31
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.
Locais de estudo
-
-
Georgia
-
Atlanta, Georgia, Estados Unidos, 30322
- Emory University Hospital
-
Atlanta, Georgia, Estados Unidos, 30308
- Emory University Hospital Midtown
-
-
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:
- Receiving care in an intensive care unit (ICU)
- Age greater than 18 years
- Expected to require mechanical ventilation for at least 72 hours after entry
- Expected to survive and remain in the ICU for at least 96 hours after study entry
- To enable delivery of study drug, the subject has enteral access in place and is deemed able to tolerate enteral drug administration
Exclusion Criteria:
- Inability to obtain or declined informed consent from the subject and/or legally authorized representative
- Pregnancy
- Ongoing shock
- Current hypercalcemia (albumin-corrected serum calcium > 10.8 mg/dL or ionized calcium > 5.2 mg/dL)
- History of therapy with high-dose vitamin D to treat vitamin D deficiency within previous 6 months
- History of disorders associated with hypercalcemia; history of cancer with history of hypercalcemia within the past 1 year, hyperparathyroidism, sarcoidosis, nephrolithiasis]
- Chronic renal dysfunction requiring chronic dialysis
- Known history of cirrhosis
- History of AIDS
- The patient has received any investigational drug within 60 days prior to study entry.
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: Randomizado
- Modelo Intervencional: Atribuição Paralela
- Mascaramento: Quadruplicar
Armas e Intervenções
Grupo de Participantes / Braço |
Intervenção / Tratamento |
|---|---|
|
Experimental: Enteral vitamin D3 50,000 IU
An arm where subjects receive 50,000 IU of Vitamin D for 5 days.
|
Enteral Vitamin D3 50,000IU x 5 days (total dose 250,000IU)
|
|
Experimental: Enteral Vitamin D3 100,000 IU
Arm where subjects receive 100,000 IU of Vitamin D for 5 days
|
Enteral Vitamin D3 100,000IU over 5 days (total 500,000IU)
|
|
Comparador de Placebo: Inactive Substance
Arm where patients receive inactive substance for 5 days.
|
Inactive substance given enterally for 5 days.
|
O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
Number of Participants With Plasma 25(OH)D Concentration >30ng/mL at Baseline
Prazo: Baseline
|
The number of participants with a plasma 25(OH)D concentration in the desirable range (defined as greater than 30 ng/mL) at the baseline measurement.
|
Baseline
|
|
Number of Participants With Plasma 25(OH)D Concentration >30ng/mL at Day 7
Prazo: Day 7
|
The number of participants with a plasma 25(OH)D concentration in the desirable range (defined as greater than 30 ng/mL) at the Day 7 measurement.
|
Day 7
|
|
Number of Participants With Plasma 25(OH)D Concentration >30ng/mL at Day 14
Prazo: Day 14
|
The number of participants with a plasma 25(OH)D concentration in the desirable range (defined as greater than 30 ng/mL) at the Day 14 measurement.
|
Day 14
|
|
Number of Participants With Plasma 25(OH)D Concentration >30ng/mL at Day 21
Prazo: Day 21
|
The number of participants with a plasma 25(OH)D concentration in the desirable range (defined as greater than 30 ng/mL) at the Day 21 measurement.
|
Day 21
|
|
Number of Participants With Plasma 25(OH)D Concentration >30ng/mL at Day 28
Prazo: Day 28
|
The number of participants with a plasma 25(OH)D concentration in the desirable range (defined as greater than 30 ng/mL) at the Day 28 measurement.
|
Day 28
|
|
Number of Participants With Plasma 25(OH)D Concentration >30ng/mL at Day 84
Prazo: Day 84
|
The number of participants with a plasma 25(OH)D concentration in the desirable range (defined as greater than 30 ng/mL) at the Day 84 measurement.
|
Day 84
|
Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
Change in Plasma LL-37 Levels
Prazo: Baseline, Day 7, Day 14
|
Plasma LL-37 was measured at Baseline, Day 7 and Day 14.
|
Baseline, Day 7, Day 14
|
|
Duration of Time on Ventilator
Prazo: 12 weeks
|
The number of days spent on mechanical ventilation was collected for all study participants and the average number of days for each study arm is reported.
|
12 weeks
|
|
Duration of Time in Intensive Care Unit (ICU)
Prazo: 12 weeks
|
The number of days spent in the intensive care unit (ICU) was collected for each participant and the average number of days for each study arm is reported.
|
12 weeks
|
|
Duration of Time in Hospital
Prazo: 12 weeks
|
The number of days that each participant spent in the hospital was collected and the average number of days for each study arm is reported.
|
12 weeks
|
|
Change in Sequential Organ Failure Assessment (SOFA) Score
Prazo: Baseline, Day 7
|
Change in Sequential Organ Failure Assessment (SOFA) score between Baseline and Day 7. The Sequential Organ Failure Assessment (SOFA) score is a mortality prediction score that is based on the degree of dysfunction of 6 organ systems (respiratory, nervous, cardiovascular, liver, coagulation, and kidneys).
A score ranges from 0-24.
0 (normal) to 4 (high degree of dysfunction) is given for each organ system, with a higher score indicating greater severity.
A score of 0-6 is associated with a mortality rate of less than 10% while a score between 16 and 24 is associated with a greater than 90% mortality rate.
Scores decreasing between the Baseline and Day 7 measurements are represented as negative values for the change in SOFA score.
|
Baseline, Day 7
|
|
Number of Hospital Acquired Infections
Prazo: 12 weeks
|
The number of study participants who had a hospital acquired infection.
|
12 weeks
|
|
Number of Hospital Mortality Cases
Prazo: 12 weeks
|
The number of study participants who died while in the hospital was collected.
|
12 weeks
|
|
Day 84 Mortality
Prazo: Day 84
|
The number of participants who died prior to the end of the study (Day 84) was collected.
|
Day 84
|
Colaboradores e Investigadores
É aqui que você encontrará pessoas e organizações envolvidas com este estudo.
Patrocinador
Colaboradores
Investigadores
- Investigador principal: Thomas Ziegler, MD, Emory University
- Investigador principal: Greg Martin, MD, MSc, Emory University
Publicações e links úteis
A pessoa responsável por inserir informações sobre o estudo fornece voluntariamente essas publicações. Estes podem ser sobre qualquer coisa relacionada ao estudo.
Publicações Gerais
- Jeng L, Yamshchikov AV, Judd SE, Blumberg HM, Martin GS, Ziegler TR, Tangpricha V. Alterations in vitamin D status and anti-microbial peptide levels in patients in the intensive care unit with sepsis. J Transl Med. 2009 Apr 23;7:28. doi: 10.1186/1479-5876-7-28.
- De Smet K, Contreras R. Human antimicrobial peptides: defensins, cathelicidins and histatins. Biotechnol Lett. 2005 Sep;27(18):1337-47. doi: 10.1007/s10529-005-0936-5.
- Urashima M, Segawa T, Okazaki M, Kurihara M, Wada Y, Ida H. Randomized trial of vitamin D supplementation to prevent seasonal influenza A in schoolchildren. Am J Clin Nutr. 2010 May;91(5):1255-60. doi: 10.3945/ajcn.2009.29094. Epub 2010 Mar 10.
- Barlow PG, Beaumont PE, Cosseau C, Mackellar A, Wilkinson TS, Hancock RE, Haslett C, Govan JR, Simpson AJ, Davidson DJ. The human cathelicidin LL-37 preferentially promotes apoptosis of infected airway epithelium. Am J Respir Cell Mol Biol. 2010 Dec;43(6):692-702. doi: 10.1165/rcmb.2009-0250OC. Epub 2010 Jan 22.
- Yim S, Dhawan P, Ragunath C, Christakos S, Diamond G. Induction of cathelicidin in normal and CF bronchial epithelial cells by 1,25-dihydroxyvitamin D(3). J Cyst Fibros. 2007 Nov 30;6(6):403-10. doi: 10.1016/j.jcf.2007.03.003. Epub 2007 Apr 27.
- Tejada Artigas A, Bello Dronda S, Chacon Valles E, Munoz Marco J, Villuendas Uson MC, Figueras P, Suarez FJ, Hernandez A. Risk factors for nosocomial pneumonia in critically ill trauma patients. Crit Care Med. 2001 Feb;29(2):304-9. doi: 10.1097/00003246-200102000-00015.
- Winther B, Greve JM, Gwaltney JM Jr, Innes DJ, Eastham JR, McClelland A, Hendley JO. Surface expression of intercellular adhesion molecule 1 on epithelial cells in the human adenoid. J Infect Dis. 1997 Aug;176(2):523-5. doi: 10.1086/517280.
- Manaseki-Holland S, Qader G, Isaq Masher M, Bruce J, Zulf Mughal M, Chandramohan D, Walraven G. Effects of vitamin D supplementation to children diagnosed with pneumonia in Kabul: a randomised controlled trial. Trop Med Int Health. 2010 Oct;15(10):1148-55. doi: 10.1111/j.1365-3156.2010.02578.x. Epub 2010 Aug 17.
- Han JE, Jones JL, Tangpricha V, Brown MA, Brown LAS, Hao L, Hebbar G, Lee MJ, Liu S, Ziegler TR, Martin GS. High Dose Vitamin D Administration in Ventilated Intensive Care Unit Patients: A Pilot Double Blind Randomized Controlled Trial. J Clin Transl Endocrinol. 2016 Jun;4:59-65. doi: 10.1016/j.jcte.2016.04.004. Epub 2016 May 5.
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
1 de julho de 2011
Conclusão Primária (Real)
1 de abril de 2014
Conclusão do estudo (Real)
1 de abril de 2014
Datas de inscrição no estudo
Enviado pela primeira vez
13 de junho de 2011
Enviado pela primeira vez que atendeu aos critérios de CQ
13 de junho de 2011
Primeira postagem (Estimativa)
14 de junho de 2011
Atualizações de registro de estudo
Última Atualização Postada (Estimativa)
9 de janeiro de 2017
Última atualização enviada que atendeu aos critérios de controle de qualidade
10 de novembro de 2016
Última verificação
1 de novembro de 2016
Mais Informações
Termos relacionados a este estudo
Palavras-chave
Termos MeSH relevantes adicionais
Outros números de identificação do estudo
- IRB00049610
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 .
Ensaios clínicos em Enteral Vitamin D3 50,000 IU
-
Aalborg UniversityAalborg University Hospital; CCBR Aalborg A/S, Aalborg, DenmarkConcluídoEnxaqueca de acordo com os critérios da International Headache Society (IHS) (ICHD-II)Dinamarca
-
Hospital Clinic of BarcelonaDesconhecidoObesidade | Gastrectomia | Bypass GástricoEspanha