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Adding Liraglutide to High Dose Insulin: Breaking the Cycle

15 de diciembre de 2017 actualizado por: Ildiko Lingvay

The purpose of this study is to evaluate whether the addition of liraglutide 1.8 mg/day to a high-dose insulin regimen (>1.8 units/kg/day) in patients with uncontrolled (HbA1c >7.5%) type 2 diabetes mellitus will improve blood sugar control.

It also evaluates the effect of liraglutide on liver and pancreatic fat content, explores the mechanism of blood sugar improvement by assessing weight and pancreatic hormone release, and assesses blood pressure, lipid profile, and liver function. Finally it will look at patient quality of life and safety.

Descripción general del estudio

Estado

Terminado

Condiciones

Intervención / Tratamiento

Descripción detallada

Type 2 diabetes is a progressive disease with incessant beta-cell dysfunction that often ultimately requires insulin treatment. Patients requiring high insulin dosages represent a particular treatment challenge and often have uncontrolled glycemia despite progressive dose increases and are especially prone to insulin related lipotoxicity and weight gain.

Glucagon-like peptide agonists (GLP-1) such as liraglutide have many actions that position them to break the vicious cycle in this population through the following mechanisms: (1) weight loss; (2) improved hepatic steatosis; (3) improved pancreatic steatosis; (4) decreased glucagon levels; (5) improved beta-cell function.

The purpose of the study is to demonstrate that liraglutide is both effective and safe when added to a high dose insulin treatment regimen. Liraglutide will improve glycemic control, weight, metabolic parameters, as well as patient satisfaction, with minimal adverse events. The study also proposes to study the mechanisms through which such improvements might occur, especially beta-cell function, glucagon levels, and hepatic and pancreatic fat content.

Tipo de estudio

Intervencionista

Inscripción (Actual)

71

Fase

  • Fase 4

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

  • Estados Unidos
    • Texas
      • Dallas, Texas, Estados Unidos, 75390
        • UT Southwestern

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 y mayores (Adulto, Adulto Mayor)

Acepta Voluntarios Saludables

No

Géneros elegibles para el estudio

Todos

Descripción

Inclusion Criteria:

  • Type 2 diabetes mellitus
  • Insulin dose of >1.8 units/kg/day (represents total daily insulin dose, regardless of formulation, regimen, number of daily shots)
  • HbA1c ≥ 7.5% and ≤ 11%
  • Age ≥ 18
  • Stable comorbidities on stable treatment regimens
  • Stable dose of all oral hypoglycemics for ≥ 3 months prior to enrollment
  • Ability to provide informed consent before any trial-related activities

Exclusion Criteria:

  • Type 1 diabetes mellitus
  • Any contraindication to the MRI procedure (metallic implants, severe claustrophobia, pregnancy, unable to lie still on a hard table for the duration of the procedure, weight above 400 lb - limit of the MRI table, magnet's inner circumference smaller than the largest body circumference)
  • History of any pancreatic disease as it might interfere with the pancreatic TG measurement (i.e. pancreatitis, tumors, cysts, type 1 diabetes, any pancreatic surgery)
  • End Stage Renal Disease on dialysis due to increased risk of hypoglycemia, and possible interference with accurate measurement of HbA1c
  • Incretin therapy (any GLP-1 agonist or DPP-IV inhibitor)
  • Unstable or decompensated comorbidities
  • Personal or family history of medullary thyroid carcinoma or MEN-2 syndrome
  • Severe gastroparesis
  • Pregnancy, breast feeding, intention to become pregnant, or not using adequate contraceptive measures
  • Organ transplant recipient or waiting list candidate
  • Steroid use (current or potential use during the trial)
  • Known/suspected allergy to trial medication, excipients, or related products
  • Contraindications to study medications, worded specifically as stated in the product's prescribing information
  • Non-English speaking volunteers since no interpreters are available and the safety of the volunteers could be jeopardized if adequate and reliable communication is not possible.

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 paralela
  • Enmascaramiento: Triple

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Comparador activo: Liraglutida
Droga: Liraglutide
Liraglutdie 1.8mg injected subcutaneously from pen device once daily for 6-months
Otros nombres:
  • Victoza
Comparador de placebos: Inyección de solución salina
Droga: Saline
Placebo injection of 1.8mg saline once daily for 6-months

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Glycemic Control Measured by HbA1c
Periodo de tiempo: 6-months
HbA1c (%)
6-months

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Pancreatic and Hepatic Triglyceride Content
Periodo de tiempo: 6-months
Liver Triglyceride and Pancreatic Triglyceride
6-months
Weight
Periodo de tiempo: 6-months
6-months
Beta-Cell Function
Periodo de tiempo: 6-months
Fasting Glucose as a Measure of Beta-Cell Function
6-months
Glucagon
Periodo de tiempo: 6-months
Measured during mixed meal challenge test.
6-months
Total Daily Insulin Dose
Periodo de tiempo: 6-months
The 3 days average of the total daily dose of insulin used within 3 consecutive days prior office visit 6 month.
6-months
Number of Daily Injections
Periodo de tiempo: 6-months
The 3 days average of the number of daily injections performed within 3 consecutive days prior office visit 6 month.
6-months
Blood Pressure
Periodo de tiempo: 6-months
6-months
Lipid Profile
Periodo de tiempo: 6-months
6-months
Liver Function Blood Test
Periodo de tiempo: 6-months
6-months
Hypoglycemic Events
Periodo de tiempo: 6-months
Reported as hypoglycemic events per month by patient as any blood glucose <70 mg/dl or symptoms of hypoglycemia with blood glucose >70 mg/dl
6-months
Quality of Life Survey (QoL) - General Health Perception
Periodo de tiempo: 6-months
General health perception was measured at randomization and 6 months later using the modified Diabetes Quality of Life Clinical Trial Questionnaire. This questionnaire addresses several areas with respect to diabetes QoL. Answers are in the form of a Likert scale score of 1-5, where 1 = excellent; 2 = very good; 3 = good; 4 = fair; 5 = poor.
6-months
Beta-Cell Function
Periodo de tiempo: 6 months
Fasting C-peptide as a Measure of Beta-Cell Function
6 months
Matsuda Index as a Measure of Beta Cell Function
Periodo de tiempo: 6 months
The Matsuda index is a measure of insulin sensitivity and has no minimum/maximum values. Index values are calculated as 500,000/square root of ((fasting glucose x fasting c-peptide x 333) x (mean 120 min post-meal glucose x mean 120 min post-meal c-peptide x 333)). Higher/lower values = better/worse insulin sensitivity.
6 months
Beta-cell Function
Periodo de tiempo: 6 Months
AUC c-peptide
6 Months
Ratio (AUC C-peptide/AUC Glucose)
Periodo de tiempo: 6 months
6 months
AUC Glucose
Periodo de tiempo: 6 months
6 months
Quality of Life Survey (QoL) - Current Health Perception
Periodo de tiempo: 6 months
Current health perception was measured at randomization and 6 months later using the modified Diabetes Quality of Life Clinical Trial Questionnaire. This questionnaire addresses several areas with respect to diabetes QoL. Answers are in the form of a Likert scale score of 1-5, where 1 = much better than 3 months ago; 2 - Somewhat better now than 3 months ago; 3 - About the same; 4 - Somewhat worse now than 3 months ago; 5 Much worse now than 3 months ago.
6 months
Quality of Life Survey (QoL) - Treatment Satisfaction
Periodo de tiempo: 6 months
Quality of Life Survey (QoL) - treatment satisfactionTreatment satisfaction was measured at randomization and 6 months later using the modified Diabetes Quality of Life Clinical Trial Questionnaire. This questionnaire addresses several areas with respect to diabetes QoL. Answers are in the form of a Likert scale score of 1-5, where 1 - very satisfied; 2 - moderately satisfied; 3 - neither satisfied nor dissatisfied; 4 - moderately dissatisfied; 5 - very dissatisfied.
6 months
Quality of Life Survey (QoL) - Treatment Impact
Periodo de tiempo: 6 months
Treatment impact was measured at randomization and 6 months later using the modified Diabetes Quality of Life Clinical Trial Questionnaire. This questionnaire addresses several areas with respect to diabetes QoL. Answers are in the form of a Likert scale score of 1-5, where 1 - very satisfied; 2 - moderately satisfied; 3 - neither satisfied nor dissatisfied; 4 - moderately dissatisfied; 5 - very dissatisfied.
6 months
Quality of Life Survey (QoL) - Social or Vocational Worry
Periodo de tiempo: 6 months
Social or vocational worry was measured at randomization and 6 months later using the modified Diabetes Quality of Life Clinical Trial Questionnaire. This questionnaire addresses several areas with respect to diabetes QoL. Answers are in the form of a Likert scale score of 0-5, where 0 - does not apply; 1 - never; 2 - seldom; 3 - sometimes; 4 - often; 5 - all of the time.
6 months
Quality of Life Survey (QoL) - Hypoglycemia Fear
Periodo de tiempo: 6 months
Hypoglycemia fear was measured at randomization and 6 months later using the modified Diabetes Quality of Life Clinical Trial Questionnaire. This questionnaire addresses several areas with respect to diabetes QoL. Answers are in the form of a Likert scale score of 1-5, where 1 - never worry; 2 - rarely water; 3 - sometimes worry; 4 - often worry; 5 - very often worry.
6 months
Quality of Life Survey (QoL) - Glycemia Control Perception
Periodo de tiempo: 6 months
Glycemia control perception was measured at randomization and 6 months later using the modified Diabetes Quality of Life Clinical Trial Questionnaire. This questionnaire addresses several areas with respect to diabetes QoL. Answers are in the form of a scale score of 1-7, where 1 - extremely controlled and 7 - not at all controlled.
6 months
Quality of Life Survey (QoL) - Lifestyle Flexibility
Periodo de tiempo: 6 months
Lifestyle flexibility was measured at randomization and 6 months later using the modified Diabetes Quality of Life Clinical Trial Questionnaire. This questionnaire addresses several areas with respect to diabetes QoL. Answers are in the form of a Likert scale score of 1 to 5, where 1 - a great deal of choice; 2 - a lot of choice; 3 - some choice; 4 - a little choice; 5 - no choice.
6 months
Quality of Life Survey (QoL) - Social Stigma
Periodo de tiempo: 6 months
Social stigma was measured at randomization and 6 months later using the modified Diabetes Quality of Life Clinical Trial Questionnaire. This questionnaire addresses several areas with respect to diabetes QoL. Answers are in the form of a Likert scale score of 1 to 5, where 1 strongly agree; 2 - somewhat agree; 3 - neither agree nor disagree; 4 - somewhat disagree; 5 - strongly disagree.
6 months
Quality of Life Survey (QoL) - Satisfaction With Insulin Treatment
Periodo de tiempo: 6 months
Satisfaction with insulin treatment was measured at randomization and 6 months later using the modified Diabetes Quality of Life Clinical Trial Questionnaire. This questionnaire addresses several areas with respect to diabetes QoL. Answers are in the form of a scale score of 1 to 7, where 1 extremely satisfied to 7 - not at all satisfied.
6 months
Quality of Life Survey (QoL) - Willingness to Continue Insulin Treatment
Periodo de tiempo: 6 months
Willingness to continue insulin treatment was measured at randomization and 6 months later using the modified Diabetes Quality of Life Clinical Trial Questionnaire. This questionnaire addresses several areas with respect to diabetes QoL. Answers are in the form of a scale score of 1 to 7, where 1 extremely willing to 7 - not at all willing.
6 months

Colaboradores e Investigadores

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

Patrocinador

Ildiko Lingvay

Colaboradores

Novo Nordisk A/S

Investigadores

  • Investigador principal: Ildiko Lingvay, MD, UT Southwestern

Publicaciones y enlaces útiles

La persona responsable de ingresar información sobre el estudio proporciona voluntariamente estas publicaciones. Estos pueden ser sobre cualquier cosa relacionada con el estudio.

Publicaciones Generales

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 enero de 2012

Finalización primaria (Actual)

1 de junio de 2016

Finalización del estudio (Actual)

1 de junio de 2016

Fechas de registro del estudio

Enviado por primera vez

4 de enero de 2012

Primero enviado que cumplió con los criterios de control de calidad

5 de enero de 2012

Publicado por primera vez (Estimar)

6 de enero de 2012

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

16 de enero de 2018

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

15 de diciembre de 2017

Última verificación

1 de diciembre de 2017

Más información

Términos relacionados con este estudio

Palabras clave

Términos MeSH relevantes adicionales

Otros números de identificación del estudio

  • IIS-000235

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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