Clinical Trial: The Effects of GLP-1 in Maturity-Onset Diabetes of The Young (MODY)

Study Status: Completed
Recruit Status: Completed
Study Type: Interventional

Official Title: Phase 2 Study: A Double-blind, Randomised, Clinical Cross-over Trial to Investigate the Treatment Potential of Liraglutide Compared to Glimepiride in MODY Patients

Brief Summary: The purpose of this study is to evaluate the treatment potential of GLP-1-analogues in patients with Maturity Onset Diabetes of the Young (MODY) compared to common treatment.

Detailed Summary:

Maturity-onset diabetes of the young (MODY) is a monogenic form of diabetes responsible for approximately 1-2% of all cases of diabetes. The disease is clinically defined by: 1) autosomal dominant inheritance (diabetes for at least two consecutive generations), 2) non-insulin dependent diabetes at onset (or measurable serum C-peptide three years after onset), and 3) diagnosis in a young age (at least one family member with onset before the age of 25 years). Clinically, MODY-patients resemble patients with type 2 diabetes (T2DM) more than patients with type 1 diabetes mellitus (T1DM). MODY is genetically heterogeneous, with known mutations in eight different genes and mutations in either of these genes leads to specific forms of MODY. Based on a national epidemiological survey, we know that in Denmark, approximately 50% of patients who are diagnosed with MODY have mutations in the hepatocyte nuclear factor (HNF) 4 alpha (HNF4A) (MODY1), glucokinase (GCK) (MODY2), or HNF1A (MODY3) genes.

MODY3 is the most common form of MODY in Denmark (approximately 60% of all patients with MODY). Patients with MODY3 are often diagnosed around puberty, more than 50% of mutation carriers will develop diabetes before the age of 25, and the lifetime risk of developing diabetes is higher than 95%. The typical course of disease is characterised by a rapid progression from impaired glucose tolerance to diabetes. After the diagnosis of diabetes, the glucose tolerance is further impaired due to a continuous loss of beta cell function. MODY3 often develops abruptly with classic hyperglycaemic symptoms such as polyuria and polydipsia, which is why this form of diabetes is often misclassified as T1DM. Patients with MODY3 have the same risk of developing microvascular and macrovascular late diabetic complications as patients with T2DM, and, strict glycaemic control combined with proper screening for d
Sponsor: University Hospital, Gentofte, Copenhagen

Current Primary Outcome: Fasting Plasma Glucose [ Time Frame: 14 weeks ]

Glycaemic control will be evaluated by FPG monitored twice weekly, 7-point PG profiles every two weeks and 3 blinded 48-hour continuous PG profiles (before randomisation and at the end of both treatment periods). The patients who will be their own controls, will randomly be assigned (after one week washout of usual antidiabetic treatment) to receive either liraglutide or glimepiride for 6 weeks, and after another one-week washout period treated with the opposite treatment for 6 weeks.


Original Primary Outcome: Same as current

Current Secondary Outcome:

  • Serum Fructosamine [ Time Frame: 14 weeks ]
    Fructosamine is a time-averaged indicator of PG levels. It reflects the total amount of glycated proteins such as glycohaemoglobin and glycoalbumin in a blood sample. The turnover of serum proteins (albumin has a half-life of 19 days) is less than that of haemoglobin, and therefore fructosamine determinations provide a means of monitoring patient blood glucose status over a shorter period (1-3 weeks) than glycohaemoglobin (6-8 weeks).
  • Hypoglycemic events [ Time Frame: 14 weeks ]
    Hypoglycaemic events will be reported by the patient in a diary. During cycling tests patients will be tested further according to hypoglycaemia. Mild hypoglycaemia is defined as episodes with symptoms of hypoglycaemia familiar to the patient and managed solely by the patient. Events of severe hypoglycaemia are defined as episodes with symptoms of hypoglycaemia with need for assistance from another person.
  • Plasma concentrations of insulin and C-peptide [ Time Frame: 14 weeks ]
    Postprandial responses of incretin hormones and beta cell function (assessed as fasting proinsulin-to-insulin ratio) will be evaluated during three standardised 4-hour meal tests (at baseline and in the end of each treatment period).
  • Plasma glucagon [ Time Frame: 14 weeks ]
    Postprandial responses of incretin hormones and beta cell function (assessed as fasting proinsulin-to-insulin ratio) will be evaluated during three standardised 4-hour meal tests (at baseline and in the end of each treatment period).
  • Plasma concentrations of incretin hormones [ Time Frame: 14 weeks ]
    Postprandial responses of incretin hormones and beta cell function (assessed as fasting proinsulin-to-insulin ratio) will be evaluated during three standardised 4-hour meal tests (at baseline and in the end of each treatment period).


Original Secondary Outcome: Same as current

Information By: University Hospital, Gentofte, Copenhagen

Dates:
Date Received: May 24, 2012
Date Started: August 2012
Date Completion:
Last Updated: September 4, 2013
Last Verified: September 2013