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The Effectiveness of Montelukast on Atopic Dermatitis in Koreans

16 de noviembre de 2015 actualizado por: Pyun BokYang

A Double Blind, Randomized, Crossover Study to Compare the Effectiveness of Montelukast on Atopic Dermatitis in Koreans

The purpose of this study is to assess the clinical effectiveness of Montelukast in children (2~6 years old) with atopic dermatitis and identify the pathophysiologic background of Montelukast on the role of modulating the atopic dermatitis measured by urinary Leukotriene 4 (LTE4) and Eosinophil protein X(EDN).

Descripción general del estudio

Estado

Terminado

Condiciones

Intervención / Tratamiento

Descripción detallada

Leukotriene B4 (LTB4) and the cysteinyl-leukotrienes LTC4, LTD4 and LTE4 are potent proinflammatory mediators derived from arachidonic acid through the 5- lipoxygenase pathway. They are secreted from eosinophils and other inflammatory cells such as mast cells and macrophages. The primary action of leukotrienes includes contraction of human airway muscle, chemotaxis, and increased vascular permeability, with secondary effects of inhibiting allergen-induced early and late responses. Several in vivo and in vitro studies suggest a role for cysteinyl leukotrienes in the pathogenesis of atopic dermatitis and there is a rationale for the use of pharmacological agents to antagonize their effects in the treatment of atopic dermatitis. Levels of LTE4 measured in urine (Urinary-LTE4) may be a useful measure of whole-body cysteinyl-leukotriene production in vivo, because that LTE4 is a stable urinary metabolite of LTC4 and LTD4. Urinary-LTE4 has been measured in individuals with atopic dermatitis, but in small-scale studies, and the results are conflicting.

Tipo de estudio

Intervencionista

Inscripción (Actual)

54

Fase

  • No aplica

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.

Ubicaciones de estudio

  • Corea, república de
      • Seoul, Corea, república de, 140-743
        • Pediatric Allergy & Respiratory Center, Department of Pediatrics, Soonchunhyang University Hospital

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

2 años a 6 años (Niño)

Acepta Voluntarios Saludables

No

Géneros elegibles para el estudio

Todos

Descripción

Inclusion Criteria:

  • The ages of 2 to 6 years old, 54 children with moderate to severe atopic dermatitis diagnosed by the criteria of Haniffin and Rajka were included in the study.
  • Volunteer children with moderate to severe atopic dermatitis were recruited from the Pediatric Allergy and respiratory Center of the SoonChunHyang University Hospital (Seoul, Korea). At the time of recruitment, written consent was obtained. The ethical committee at the SoonChunHyang University Hospital approved the trial.
  • Volunteers who agreed by their parents.
  • The severity of their disease was assessed by modified SCORAD index.

Exclusion Criteria:

  • Too severe atopic dermatitis defined as the sum of scores is 80 and above by SCORAD index.
  • A history of liver disease; allergy to montelukast or cross-reacting medication; use of phenobarbital, phenytoin or rifampicin.
  • Patients on systemic steroids, immune-suppression or Korean herbal medicine during the previous 6 weeks.

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: Tratamiento
  • Asignación: Aleatorizado
  • Modelo Intervencionista: Asignación cruzada
  • Enmascaramiento: Triple

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: Montelukast first, then placebo
The group received active medication (montelukast 4 mg or 5mg once daily) for 8 weeks followed by a crossover to 8 weeks of placebo after 2-weeks washout period.
Droga: Montelukast first, then placebo
Patients in "Montelukast first, then placebo" will receive 4 mg of montelukast under the age of 6 years (5 mg of montelukast at 6 years) once daily for 8 weeks. And after 2 weeks wash-out period, they will receive chewable ascorbic acid placebo for 8 weeks. Patients in "Placebo first, then Montelukast" are received chewable ascorbic acid placebo for 8 weeks. And after 2 weeks wash-out period, they will receive 4 mg of montelukast under the age of 6 years (5 mg of montelukast at 6 years) once daily for 8 weeks.
Otros nombres:
  • SINGULAIR
Droga: Placebo first, then Montelukast
Patients in "Montelukast first, then placebo" will receive 4 mg of montelukast under the age of 6 years (5 mg of montelukast at 6 years) once daily for 8 weeks. And after 2 weeks wash-out period, they will receive chewable ascorbic acid placebo for 8 weeks. Patients in "Placebo first, then Montelukast" are received chewable ascorbic acid placebo for 8 weeks. And after 2 weeks wash-out period, they will receive 4 mg of montelukast under the age of 6 years (5 mg of montelukast at 6 years) once daily for 8 weeks.
Otros nombres:
  • Ácido ascórbico
Experimental: Placebo first, then Montelukast
The group received placebo medication (ascorbic acid) for 8 weeks followed by a crossover to 8 weeks of active medication (montelukast 4 mg or 5mg once daily) after 2-weeks washout period.
Droga: Montelukast first, then placebo
Patients in "Montelukast first, then placebo" will receive 4 mg of montelukast under the age of 6 years (5 mg of montelukast at 6 years) once daily for 8 weeks. And after 2 weeks wash-out period, they will receive chewable ascorbic acid placebo for 8 weeks. Patients in "Placebo first, then Montelukast" are received chewable ascorbic acid placebo for 8 weeks. And after 2 weeks wash-out period, they will receive 4 mg of montelukast under the age of 6 years (5 mg of montelukast at 6 years) once daily for 8 weeks.
Otros nombres:
  • SINGULAIR
Droga: Placebo first, then Montelukast
Patients in "Montelukast first, then placebo" will receive 4 mg of montelukast under the age of 6 years (5 mg of montelukast at 6 years) once daily for 8 weeks. And after 2 weeks wash-out period, they will receive chewable ascorbic acid placebo for 8 weeks. Patients in "Placebo first, then Montelukast" are received chewable ascorbic acid placebo for 8 weeks. And after 2 weeks wash-out period, they will receive 4 mg of montelukast under the age of 6 years (5 mg of montelukast at 6 years) once daily for 8 weeks.
Otros nombres:
  • Ácido ascórbico

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Changes in SCORAD Index
Periodo de tiempo: 18 weeks after patient recruitment
Changes of SCORAD(SCORing Atopic Dermatitis) index after taking Montelukast or placebo drug. SCORAD calculation: Extent(%)/5 + 7*Intensity/2 + subjective symptoms (minimum score 0, maximum score 103) (SCORAD index >40: severe, 15-40:moderate, <15: mild)
18 weeks after patient recruitment
Changes in Urinary LTE4
Periodo de tiempo: 18 weeks after patient recruitment
Changes of Urinary LTE4(Leukotrien E4) after taking Montelukast or placebo drug. Urinary LTE4 levels were measured using an enzyme-linked immunoassay (ELISA) (Cayman Chemical, Michigan, USA) and the intra-assay and inter-assay variations were 7.4 ± 2.1 and 12.4 ± 7.8, respectively. Minimum value : 0 Maximum vlaue: 1000 pg/ml.
18 weeks after patient recruitment
Changes in Urinary EDN
Periodo de tiempo: 18 weeks after participants recruitment
Changes of Urinary EDN(Eosinophil Derived Neurotoxin) after taking Montelukast or placebo drug. Urinary EDN levels were measured using an ELISA (MBL, Woburn, MA, USA) and the intra-assay and inter-assay variations were 3.0 ± 0.5 and 7.7 ± 1.5, respectively. Minimum value: 0, Maximum value: 2040 ng/ml.
18 weeks after participants recruitment

Colaboradores e Investigadores

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

Patrocinador

Pyun BokYang

Colaboradores

Merck Sharp & Dohme LLC

Investigadores

  • Silla de estudio: Bok Yang Pyun, M.D., PhD., Pediatric Allergy & Respiratory Center, Department of Pediatrics, Soonchunhyang University Hospital

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

1 de agosto de 2009

Finalización primaria (Actual)

1 de agosto de 2010

Finalización del estudio (Actual)

1 de abril de 2011

Fechas de registro del estudio

Enviado por primera vez

14 de mayo de 2009

Primero enviado que cumplió con los criterios de control de calidad

14 de mayo de 2009

Publicado por primera vez (Estimar)

18 de mayo de 2009

Actualizaciones de registros de estudio

Última actualización publicada (Estimar)

14 de diciembre de 2015

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

16 de noviembre de 2015

Última verificación

1 de noviembre de 2015

Más información

Términos relacionados con este estudio

Palabras clave

Términos MeSH relevantes adicionales

Otros números de identificación del estudio

  • schallergy

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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