Type 2 Diabetes Clinical Trial
Official title:
Defining the Physiological Mechanisms of Risk Genes for Hyperglycaemia, Insulin Resistance and Type 2 Diabetes
Recent genetic association studies have identified variants in the Peptidyl-Glycine alpha-amidating mono-oxygenase (PAM) gene that increase the risk of diabetes likely through a defect in beta-cell function. This has been followed up and supported by novel kinetic assays and cellular studies. This investigation will recall heterozygous carriers of the risk allele at rs78408340 and age, BMI and gender matched controls from the Oxford Biobank. The study will compare the incretin effect, glucagon-like peptide-1(GLP-1), insulin, glucose levels and PAM protein activity in individuals both with and without the risk variant. The aim of the study is to gain mechanistic insight into the effect of the variant on human physiology and diabetes pathogenesis.
Note: The study will utilize an adaptive study design with an interim analysis at 40
volunteers (20 v 20) with the possibility of adding an additional 20 volunteers to the study
(10 v 10) if the criteria for futility or clear effect are not met.
The criteria are; stop and reject null hypothesis if t > 2.490 and stop and accept null
hypothesis if t < 1.033. If the t falls between these values an additional 20 volunteers (10
v10) will be recruited. The decision to stop or additional volunteers will be based on the
incretin effect (primary outcome).
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Observational Model: Case Control, Time Perspective: Prospective
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