| E.1 Medical condition or disease under investigation | 
| E.1.1 | Medical condition(s) being investigated  | 
| Diabetes, type 2 | 
 
| Diabetes, type 2 | 
 
 
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| E.1.1.1 | Medical condition in easily understood language  | 
| Diabetes, type 2 | 
 
| Sukkersyge, type 2 | 
 
 
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| E.1.1.2 | Therapeutic area  | Body processes [G] - Physiological processes [G07] | 
| MedDRA Classification | 
| E.1.2 Medical condition or disease under investigation | 
| E.1.2 | Version  | 20.0 | 
 
| E.1.2 | Level  | LLT | 
 
| E.1.2 | Classification code  | 10045242 | 
 
| E.1.2 | Term  | Type II diabetes mellitus | 
 
| E.1.2 | System Organ Class  |  100000072461 | 
 
 
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| 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  | 
Empagliflozin is a sodium–glucose cotransporter 2 (SGLT-2) inhibitor, and is used in treatment of diabetes type 2. It is previously shown that SGLT-2 inhibitors have a remarkable protective effect on the heart by reducing death caused by cardiac diseases with 38%. The reasons for these effects are still unknown, but it is known that SGLT-2 treatment increase ketogenesis. We have in a previous study found that ketone body infusion shifts cardiac metabolism towards ketone body oxidation, which possibly increases cardiac efficiency. It is also shown that SGLT-2 inhibitors have reno protective effects. The aim of this study is to examine the effects of SGLT-2 treatment by: - Examination of substrate metabolism in heart and kidney measured by PET.  - Examination of perfusion and total energy consumption in the heart and kidney measured by PET. - Indirect calorimetry, bloodsamples, fat- and muscle biopsies, DXA-scan, measurement of arterial stiffness and oral glucose tolerance test.   | 
 
Empagliflozin er en såkaldt sodium–glucose cotransporter 2 (SGLT-2) hæmmer, og bruges til behandling af type 2 sukkersyge. Det har vist sig, at SGLT-2 hæmmere har en bemærkelsesværdig beskyttende effekt på hjertet, ved at reducere død pga. hjertesygdom med 38%. Baggrunden herfor er endnu ikke belyst, men det er vist, at behandlingen øger ketonstofdannelse. Vi har i et tidligere studie fundet, at infusion af ketonstof skifter hjertets forbrænding over mod ketonstofforbrænding, hvilket potentielt forbedrer hjertets energiudnyttelse. Det er også vist, at SGLT-2 hæmmerne har en betydelig nyrebeskyttende effekt. Formålet med dette forsøg er således at undersøge SGLT-2 hæmmeres beskyttende effekt på hjertet og nyrerne ved: - Undersøgelse af substrat metabolisme i hjerte og nyrer med PET.  - Undersøgelse af perfusion og totalt energiforbrug i hjertet og nyrerne målt med PET.  - Indirekte kaloeriemetri, fedt- og muskelbiopsi, blodprøver, DXA, arteriel stivhed og oral glukose tolerance test. | 
 
 
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| E.2.2 | Secondary objectives of the trial  | 
| Not applicable | 
 
| Ikke angivet | 
 
 
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| E.2.3 | Trial contains a sub-study  |  No  | 
| E.3 | Principal inclusion criteria  | 
•	Age: 50-70 years •	Type 2 diabetes for > 1 år •	HbA1c: 53-75 mmol/mol •	Metformin treatment as only anti diabetic medicin 
 
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•	Alder: 50-70 år •	Konstateret type 2 diabetes gennem >1 år •	HbA1c: 53-75 mmol/mol •	Metforminbehandling som eneste medicinske antidiabetiske behandling 
 | 
 
 
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| E.4 | Principal exclusion criteria | 
•	Diabetes for less than 1 year  •	Changes in any kind of medicine through the last one month before beginning of the study.  •	Recent acute myocardial infarction (< 1 year) , liver disease (ALAT > x 3 of upper normal range), kidney failure (eGFR<60 ml/min), current or previous cancer disease, anaemia (Hb < 6,5) •	Previous ketoacidosis •	Several genital infections (bacterial/fungal infections) •	Blooddonation the last 3 months before beginning of the study •	Participation in examinations with radioactive isotopes during the last 6 months before beginning of the study •	Current alcohol abuse (more than 21 units per week) 
 | 
 
•	Nykonstateret diabetes (inden for et 1 år) •	Ændring af alt medicin en måned op til forsøgsstart. •	Akut myokardieinfarkt inden for det sidste år, leversygdom (ALAT > x 3 af øvre normalområde), nyresvigt (eGFR<60 ml/min), aktuel eller tidligere malign sygdom, Anæmi (Hb < 6,5) •	Tidligere ketoacidose •	Gentagne underlivsinfektioner (bakterier/svampe) •	Bloddonation indenfor de sidste 3 måneder inden undersøgelsen •	Deltagelse i forsøg/undersøgelser involverende radioaktive isotoper indenfor de seneste 6 måneder •	Aktuelt alkoholmisbrug (over 21 genstande om ugen) 
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| E.5 End points | 
| E.5.1 | Primary end point(s) | 
Cardiac and renal: - Free fatty acids uptake, oxidation and re-esterification   - Glucose uptake  - Oxygen consumption and energy efficiency - Perfusion  | 
 
Hjerte og nyrer: - Frie fedtsyrer optag, forbrænding og reesterificering - Glukose optag - Ilt forbrug og energiudnyttelse - Perfusion 
 
 | 
 
 
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| E.5.1.1 | Timepoint(s) of evaluation of this end point | 
After 4 weeks treatment with  - placebo - Empagliflozin | 
 
Efter 4 ugers behandling med - placebo - Empagliflozin | 
 
 
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| E.5.2 | Secondary end point(s) | 
- Body composition (DXA) - Energy expenditure (Indirect calorimetry) - Insulin sensitivity and secretion (Oral glucose tolerance test) - Intracelular signalling in muscle and adipose tissue - Arterial stiffness   
 | 
 
- Krops sammensætning (DXA) - Energiforbrug (Indirekte kaloriemetri) - Insulin følsomhed og sekretion (Oral glukose tolerance test) - Intracellulær signallering i muskel- og fedtvæv  - Arteriel karstivhed | 
 
 
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| E.5.2.1 | Timepoint(s) of evaluation of this end point | 
After 4 weeks treatment with  - placebo - Empagliflozin | 
 
Efter 4 ugers behandling med - placebo - Empagliflozin | 
 
 
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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 |  No  | 
| E.6.4 | Safety |  No  | 
| E.6.5 | Efficacy |  No  | 
| E.6.6 | Pharmacokinetic |  No  | 
| E.6.7 | Pharmacodynamic |  Yes  | 
| 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.8.2.4 | Number of treatment arms in the trial | 2 | 
| 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 |  No  | 
| 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
                     | 
| Last visit of the last subject | 
 
| Sidste besøg af sidste deltager | 
 
 
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| E.8.9 Initial estimate of the duration of the trial | 
| E.8.9.1 | In the Member State concerned years | 3 | 
| E.8.9.1 | In the Member State concerned months | 0 | 
| E.8.9.1 | In the Member State concerned days | 0 |