| E.1 Medical condition or disease under investigation |
| E.1.1 | Medical condition(s) being investigated |
| We are testing the hypothesis that closing the K ATP channels using sulphonylureas (glibenclamide) during experimental insulin induced hypoglycaemia can help retain cerebral function and help enhance symptoms of hypoglycaemia in those with type 1 diabetes and hypoglycaemia unawareness. |
|
| MedDRA Classification |
| E.1.2 Medical condition or disease under investigation |
| E.1.2 | Version | 9.1 |
| E.1.2 | Level | LLT |
| E.1.2 | Classification code | 10020997 |
| E.1.2 | Term | Hypoglycaemia unawareness |
|
| E.1.2 Medical condition or disease under investigation |
| E.1.2 | Version | 9.1 |
| E.1.2 | Level | LLT |
| E.1.2 | Classification code | 10012608 |
| E.1.2 | Term | Diabetes mellitus insulin-dependent |
|
| E.1.3 | Condition being studied is a rare disease | No |
| E.2 Objective of the trial |
| E.2.1 | Main objective of the trial |
| To evaulate the effect of K ATP channel blockade with glibenclamide on the symptomatic and counterregulatory hormonal responses to experimental hypoglycaemia. |
|
| E.2.2 | Secondary objectives of the trial |
| To assess the effect of K ATP channel blockade with glibenclamide on cognitive function during experimental hypoglycaemia. |
|
| E.2.3 | Trial contains a sub-study | No |
| E.3 | Principal inclusion criteria |
Inclusion criteria • Age 18-75 • Type 1 diabetes (WHO definition) of at least 5 years duration • History of impaired awareness of hypoglycaemia (capillary glucose readings < 3.5mmol/l without symptoms on > 3 occasions in the past 3 months (those with intact symptoms will be unlikely to show an improvement and would not really benefit from taking any medication intended just to increase symptoms)
|
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| E.4 | Principal exclusion criteria |
Exclusion criteria • Pregnancy • Severe systemic illness • Active malignancy • Severe complications of diabetes such as severe visual impairment, severe renal impairment, severe symptomatic autonomic neuropathy • Untreated ischemic heart disease, recent stroke • Lactose intolerance ( the placebo will contain lactose) • Very poor diabetes control (HbA1c > 10%) • Hypersensitivity to sulphonylureas or sulphonamides. • Liver disease ( increase in ALT / AST > 3x ULN) • Chronic Kidney Disease stage 4 or 5 ( eGFR < 30ml/min) • Severe untreated thyroid or adrenal insufficiency ( must be treated and on stable doses for at least 6 weeks)
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|
| E.5 End points |
| E.5.1 | Primary end point(s) |
Glucose threshold for an increase in symptoms for hypoglycaemia Total increase in symptoms in response to hypoglycaemia Glucose threshold for an increase in counter-regulatory hormones inresponse to hypoglycaemia total increase in counter-regulatory hormones in response to hypoglycaemia. |
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| E.6 and E.7 Scope of the trial |
| E.6 | Scope of the trial |
| E.6.1 | Diagnosis | No |
| E.6.2 | Prophylaxis | No |
| E.6.3 | Therapy | Yes |
| E.6.4 | Safety | Yes |
| E.6.5 | Efficacy | Yes |
| E.6.6 | Pharmacokinetic | No |
| E.6.7 | Pharmacodynamic | No |
| E.6.8 | Bioequivalence | No |
| E.6.9 | Dose response | No |
| E.6.10 | Pharmacogenetic | No |
| E.6.11 | Pharmacogenomic | No |
| E.6.12 | Pharmacoeconomic | No |
| E.6.13 | Others | No |
| E.7 | Trial type and phase |
| E.7.1 | Human pharmacology (Phase I) | No |
| E.7.1.1 | First administration to humans | No |
| E.7.1.2 | Bioequivalence study | No |
| E.7.1.3 | Other | No |
| E.7.1.3.1 | Other trial type description | |
| E.7.2 | Therapeutic exploratory (Phase II) | No |
| E.7.3 | Therapeutic confirmatory (Phase III) | No |
| E.7.4 | Therapeutic use (Phase IV) | Yes |
| E.8 Design of the trial |
| E.8.1 | Controlled | Yes |
| E.8.1.1 | Randomised | Yes |
| E.8.1.2 | Open | No |
| E.8.1.3 | Single blind | No |
| E.8.1.4 | Double blind | Yes |
| E.8.1.5 | Parallel group | No |
| E.8.1.6 | Cross over | Yes |
| E.8.1.7 | Other | No |
| E.8.2 | Comparator of controlled trial |
| E.8.2.1 | Other medicinal product(s) | No |
| E.8.2.2 | Placebo | Yes |
| E.8.2.3 | Other | No |
| E.8.3 |
The trial involves single site in the Member State concerned
| Yes |
| E.8.4 | The trial involves multiple sites in the Member State concerned | No |
| E.8.5 | The trial involves multiple Member States | No |
| E.8.6 Trial involving sites outside the EEA |
| E.8.6.1 | Trial being conducted both within and outside the EEA | No |
| E.8.6.2 | Trial being conducted completely outside of the EEA | Information not present in EudraCT |
| E.8.7 | Trial has a data monitoring committee | No |
| E.8.8 |
Definition of the end of the trial and justification where it is not the last
visit of the last subject undergoing the trial
| |
| E.8.9 Initial estimate of the duration of the trial |
| E.8.9.1 | In the Member State concerned years | 1 |
| E.8.9.1 | In the Member State concerned months | |
| E.8.9.1 | In the Member State concerned days | |