E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Diabetes Mellitus Type 2 and Heart failure |
|
E.1.1.1 | Medical condition in easily understood language |
Diabetes and heart failure |
|
E.1.1.2 | Therapeutic area | Diseases [C] - Cardiovascular Diseases [C14] |
MedDRA Classification |
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 elucidate the mechanisms whereby the SGLT2i ertugliflozin modifies cardiorenal interactions that regulate fluid volume and neurohormonal
activation in patients with T2D and HF (T2D-HF). Our primary goal is to determine if SGLT2i causes a persistent proximal renal tubular
natriuretic effect. We will capture acute (1 week) and chronic (12 weeks) responses, since physiological effects of SGLT2i agents may
change over time. As an extension of our primary aim, we will assess whether ertugliflozin-related effects on proximal tubule natriuresis lead to a reduction in plasma volume and extracellular body water. |
|
E.2.2 | Secondary objectives of the trial |
1. We will determine if volume contraction leads to a decline in hormones that are activated in HF patients such as B‐type natriuretic
peptides (BNP), without activating the SNS;
2. We will determine the impact of ertugliflozin on: renal hemodynamic function (GFRiohexol) measured at 1 week2,3,5 and 12 weeks as a
measure of safety;
3. Blood pressure, echocardiographic measures of cardiac output (and derived systemic vascular resistance) arterial stiffness and systemic
vascular resistance to better understand the blood pressure lowering effect in this patient population;
4. Heart rate and heart rate variability, to assess effects on SNS activation;
5. Urinary natriuretic modulators, such as angiotensin converting enzyme and adenosine;
6. To characterize the safety of ertugliflozin vs. placebo by determining the number of hypoglycemic episodes between groups, and serious
adverse events. |
|
E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Male or female subjects diagnosed with T2D ≥12 months prior to
informed consent;
2. eGFR ≥30 ml/min/1.73m2;
3. Age >18 years;
4. HbA1c 6.5%-10.5%;
5. Body Mass Index (BMI) 18.5-45.0 kg/m2;
6. Blood pressure < 160/110 and > 90/60 at screening,
7. Heart failure with New York Heart Association (NYHA) class 2-3 symptoms and ejection fraction > 20%
8. Stable dose of maximally tolerated ACE inhibitor, angiotensin receptor blocker or renin inhibitor for at least 30 days
9. Stable diuretic dose for at least 30 days at the time of baseline physiological assessment
10. BNP levels at baseline > 100 pg/ml (no atrial fibrillation), > 200 pg/ml if in atrial fibrillation (if NT-pro-BNP is used then baseline should be >300 ng/L (no atrial fibrillation), or >600 ng/L (in atrial fibrillation) |
|
E.4 | Principal exclusion criteria |
1. Type 1 Diabetes;
2. Leukocyte and/or nitrite positive urinalysis that is untreated;
3. Severe hypoglycaemia within 2 months prior to screening;
4. History of brittle diabetes or hypoglycaemia unawareness based on investigator judgement;
5. Unstable coronary artery disease with acute coronary syndrome, percutaneous intervention or bypass surgery within 3 months;
6. Clinically significant valvular disease;
7. Congestive heart failure secondary to an infiltrative cardiomyopathic process (for example amyloid) or pericardial constriction;
8. Uncontrolled systemic hypertension (systolic blood pressure > 160 mmHg and/or diastolic blood pressure >110) or systemic hypotension
(systolic blood pressure < 90/60 mmHg);
9. Bariatric surgery or other surgeries that induce chronic malabsorption;
10. Anti-obesity drugs or diet regimen and unstable body weight three months prior to screening;
11. Treatment with systemic corticosteroids;
12. Blood dyscrasias or any disorders causing hemolysis or unstable red blood cells;
13. Pre-menopausal women who are nursing, pregnant, or of childbearing potential and not practicing an acceptable method of birth
control;
14. Participation in another trial with an investigational drug within 30 days of informed consent;
15. Alcohol or drug abuse within three months prior to informed consent that would interfere with trial participation or any ongoing clinical
condition that would jeopardize subject safety or study compliance based on investigator judgement;
16. Liver disease, defined by serum levels of alanine transaminase, aspartate transaminase, or alkaline phosphatase >3 x upper limit of
normal as determined during screening;
17. Active malignancy at the time of screening;
18. Allergy to iodine-based substances if receiving iohexol for GFR measures |
|
E.5 End points |
E.5.1 | Primary end point(s) |
Fractional excretion of sodium, using lithium clearance as a surrogate for
proximal tubular sodium handling |
|
E.5.1.1 | Timepoint(s) of evaluation of this end point |
Fractional excretion of sodium, using lithium clearance as a surrogate for proximal tubular sodium handling, will be measured at baseline, 1 week after start treatment/placebo and 12 weeks after start treatment/placebo. |
|
E.5.2 | Secondary end point(s) |
• Glomerular Filtration Rate and Renal plasma flow measured with iohexol and PAH, as well as derived renal hemodynamic parameters as
described elsewhere. Iohexol will be used, provided that there is no history of allergy to iodine based substances.
• Systolic/diastolic blood pressure, heart rate
• Echocardiography for markers of systolic and diastolic function, cardiac output
• Arterial stiffness
• Plasma volume will be measured using a non-radioactive technique (indocyanine green dilution) to assess changes in plasma volume in
response to SGLT2i.
• Extracellular water, will be measured non-invasively using bioimpedence spectroscopy, as described elsewhere.
• Cardiac output and systemic vascular resistance will also be measured using non-invasive cardiac monitoring (NICOM). This non-invasive
technique is a form of bioelectrical impedance ("bioreatance") to measure thoracic fluid content with electrocardiogram electrode
stickers. Beat-to-beat changes in fluid content can be used to derive cardiac output. Then, using measured mean arterial pressure, systemic
vascular resistance can be calculated. This entire measurement process takes approximately 15 minutes.
• Neurohormones/biomarkers: Hormones of the RAAS (renin, aldosterone in plasma and urine), Natriuretic Peptides, Sympathetic
nervous system markers, Urinary adenosine |
|
E.5.2.1 | Timepoint(s) of evaluation of this end point |
These secondary end points will be measured at baseline, 1 week after start treatment/placebo and 12 weeks after start treatment/placebo. |
|
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 | Yes |
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) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
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 | No |
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
| No |
E.8.4 | The trial involves multiple sites in the Member State concerned | Yes |
E.8.4.1 | Number of sites anticipated in Member State concerned | 2 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 2 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
|
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 | |
E.8.9.1 | In the Member State concerned months | 12 |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial months | 12 |