- ICH GCP
- Yhdysvaltain kliinisten tutkimusten rekisteri
- Kliininen tutkimus NCT01505673
Adding Liraglutide to High Dose Insulin: Breaking the Cycle
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.
Tutkimuksen yleiskatsaus
Tila
Interventio / Hoito
Yksityiskohtainen kuvaus
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.
Opintotyyppi
Ilmoittautuminen (Todellinen)
Vaihe
- Vaihe 4
Yhteystiedot ja paikat
Opiskelupaikat
-
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Texas
-
Dallas, Texas, Yhdysvallat, 75390
- UT Southwestern
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Osallistumiskriteerit
Kelpoisuusvaatimukset
Opintokelpoiset iät
Hyväksyy terveitä vapaaehtoisia
Sukupuolet, jotka voivat opiskella
Kuvaus
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.
Opintosuunnitelma
Miten tutkimus on suunniteltu?
Suunnittelun yksityiskohdat
- Ensisijainen käyttötarkoitus: Hoito
- Jako: Satunnaistettu
- Inventiomalli: Rinnakkaistehtävä
- Naamiointi: Kolminkertaistaa
Aseet ja interventiot
Osallistujaryhmä / Arm |
Interventio / Hoito |
|---|---|
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Active Comparator: Liraglutidi
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Liraglutdie 1.8mg injected subcutaneously from pen device once daily for 6-months
Muut nimet:
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Placebo Comparator: Suolaliuoksen injektio
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Placebo injection of 1.8mg saline once daily for 6-months
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Mitä tutkimuksessa mitataan?
Ensisijaiset tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
|---|---|---|
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Glycemic Control Measured by HbA1c
Aikaikkuna: 6-months
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HbA1c (%)
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6-months
|
Toissijaiset tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
|---|---|---|
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Pancreatic and Hepatic Triglyceride Content
Aikaikkuna: 6-months
|
Liver Triglyceride and Pancreatic Triglyceride
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6-months
|
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Weight
Aikaikkuna: 6-months
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6-months
|
|
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Beta-Cell Function
Aikaikkuna: 6-months
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Fasting Glucose as a Measure of Beta-Cell Function
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6-months
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Glucagon
Aikaikkuna: 6-months
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Measured during mixed meal challenge test.
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6-months
|
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Total Daily Insulin Dose
Aikaikkuna: 6-months
|
The 3 days average of the total daily dose of insulin used within 3 consecutive days prior office visit 6 month.
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6-months
|
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Number of Daily Injections
Aikaikkuna: 6-months
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The 3 days average of the number of daily injections performed within 3 consecutive days prior office visit 6 month.
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6-months
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Blood Pressure
Aikaikkuna: 6-months
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6-months
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|
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Lipid Profile
Aikaikkuna: 6-months
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6-months
|
|
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Liver Function Blood Test
Aikaikkuna: 6-months
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6-months
|
|
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Hypoglycemic Events
Aikaikkuna: 6-months
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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
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6-months
|
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Quality of Life Survey (QoL) - General Health Perception
Aikaikkuna: 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.
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6-months
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|
Beta-Cell Function
Aikaikkuna: 6 months
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Fasting C-peptide as a Measure of Beta-Cell Function
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6 months
|
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Matsuda Index as a Measure of Beta Cell Function
Aikaikkuna: 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
|
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Beta-cell Function
Aikaikkuna: 6 Months
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AUC c-peptide
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6 Months
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Ratio (AUC C-peptide/AUC Glucose)
Aikaikkuna: 6 months
|
6 months
|
|
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AUC Glucose
Aikaikkuna: 6 months
|
6 months
|
|
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Quality of Life Survey (QoL) - Current Health Perception
Aikaikkuna: 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.
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6 months
|
|
Quality of Life Survey (QoL) - Treatment Satisfaction
Aikaikkuna: 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.
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6 months
|
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Quality of Life Survey (QoL) - Treatment Impact
Aikaikkuna: 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.
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6 months
|
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Quality of Life Survey (QoL) - Social or Vocational Worry
Aikaikkuna: 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.
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6 months
|
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Quality of Life Survey (QoL) - Hypoglycemia Fear
Aikaikkuna: 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.
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6 months
|
|
Quality of Life Survey (QoL) - Glycemia Control Perception
Aikaikkuna: 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.
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6 months
|
|
Quality of Life Survey (QoL) - Lifestyle Flexibility
Aikaikkuna: 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.
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6 months
|
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Quality of Life Survey (QoL) - Social Stigma
Aikaikkuna: 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.
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6 months
|
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Quality of Life Survey (QoL) - Satisfaction With Insulin Treatment
Aikaikkuna: 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.
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6 months
|
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Quality of Life Survey (QoL) - Willingness to Continue Insulin Treatment
Aikaikkuna: 6 months
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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.
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6 months
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Yhteistyökumppanit ja tutkijat
Sponsori
Yhteistyökumppanit
Tutkijat
- Päätutkija: Ildiko Lingvay, MD, UT Southwestern
Julkaisuja ja hyödyllisiä linkkejä
Yleiset julkaisut
- Vanderheiden A, Harrison L, Warshauer J, Li X, Adams-Huet B, Lingvay I. Effect of Adding Liraglutide vs Placebo to a High-Dose lnsulin Regimen in Patients With Type 2 Diabetes: A Randomized Clinical Trial. JAMA Intern Med. 2016 Jul 1;176(7):939-47. doi: 10.1001/jamainternmed.2016.1540.
- Vanderheiden A, Harrison LB, Warshauer JT, Adams-Huet B, Li X, Yuan Q, Hulsey K, Dimitrov I, Yokoo T, Jaster AW, Pinho DF, Pedrosa I, Lenkinski RE, Pop LM, Lingvay I. Mechanisms of Action of Liraglutide in Patients With Type 2 Diabetes Treated With High-Dose Insulin. J Clin Endocrinol Metab. 2016 Apr;101(4):1798-806. doi: 10.1210/jc.2015-3906. Epub 2016 Feb 24.
Opintojen ennätyspäivät
Opi tärkeimmät päivämäärät
Opiskelun aloitus
Ensisijainen valmistuminen (Todellinen)
Opintojen valmistuminen (Todellinen)
Opintoihin ilmoittautumispäivät
Ensimmäinen lähetetty
Ensimmäinen toimitettu, joka täytti QC-kriteerit
Ensimmäinen Lähetetty (Arvio)
Tutkimustietojen päivitykset
Viimeisin päivitys julkaistu (Todellinen)
Viimeisin lähetetty päivitys, joka täytti QC-kriteerit
Viimeksi vahvistettu
Lisää tietoa
Tähän tutkimukseen liittyvät termit
Avainsanat
Muita asiaankuuluvia MeSH-ehtoja
Muut tutkimustunnusnumerot
- IIS-000235
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