Hypertension Clinical Trial
Official title:
Glucagon-like Peptide-1 Metabolism in the Setting of Acute Neprilysin Inhibition
NCT number | NCT03508739 |
Other study ID # | 828731 |
Secondary ID | |
Status | Suspended |
Phase | Phase 3 |
First received | |
Last updated | |
Start date | June 1, 2018 |
Est. completion date | June 30, 2024 |
Verified date | March 2023 |
Source | University of Pennsylvania |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
Type 2 diabetes is common, increases in prevalence with age, and patients with diabetes have an increased risk of cardiovascular disease. A relatively new cardiovascular medication currently used for the treatment of heart failure in the United States inhibits an enzyme that breaks down a variety of signaling hormones. This clinical trial tests if it may also be a target for the treatment of diabetes by decreasing the breakdown of a hormone that increases insulin release after a meal.
Status | Suspended |
Enrollment | 25 |
Est. completion date | June 30, 2024 |
Est. primary completion date | June 1, 2024 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years to 80 Years |
Eligibility | Inclusion Criteria: 1. Men and women ages 18-80 years 2. Type 2 diabetes mellitus (T2DM) or pre-diabetes, controlled by diet alone or metformin therapy and elevated blood pressure 1. Pre-diabetes is defined as fasting plasma glucose of 100-125 mg/dL, plasma glucose of 140-199 mg/dL two hours after 75g oral glucose load, or hemoglobin A1C 5.7-6.4%. T2DM is defined as fasting plasma glucose of =126 mg/dL, plasma glucose of =200 mg/dL two hours after 75g oral glucose load, or hemoglobin A1C =6.5%. 2. Elevated blood pressure is defined as systolic blood pressure (BP) =130 mmHg or diastolic BP =80 mmHg on three occasions or therapy with antihypertensive medication(s) for a minimum of three months. 3. For female subjects, the following conditions must be met: 1. Postmenopausal status for at least one year or 2. Status post-surgical sterilization, or 3. If childbearing potential, utilization of birth control (barrier methods, abstinence, hormonal contraception, etc) and willingness to undergo regular beta hCG monitoring prior to drug treatment and on each study day. (Valsartan is pregnancy category D.) Exclusion Criteria: 1. Type 1 diabetes 2. Poorly controlled T2DM, defined as hemoglobin A1C =8.7% 3. Use of anti-diabetic medications other than metformin for over 24 months prior to initiation of the study. 4. Requiring the need for insulin therapy 5. Secondary hypertension 6. Severe hypertension requiring the use of more than two anti-hypertensive agents other than a stable dose of diuretic or blood pressure > 180/110 mmHg 7. Subjects who have participated in a weight-reduction program during the last 6 months and whose weight has increased or decreased more than 5 kg over the preceding 6 months 8. Pregnancy or breastfeeding 9. History of hypersensitivity or allergy to any of the study drugs, drugs of similar chemical classes, angiotensin converting enzyme inhibitors, ARBs, or NEP inhibitors, as well as known or suspected contraindications to the study drugs 10. History of angioedema 11. History of pancreatitis or known pancreatic lesions 12. Clinically significant gastrointestinal impairment that could interfere with drug absorption 13. Significant cardiovascular disease such as myocardial infarction or cardiovascular surgery or angioplasty within six months prior to enrollment, presence of angina pectoris, arrhythmia with history of or risk of syncopal episodes or need for antiarrhythmic therapy, congestive heart failure (LV hypertrophy and diastolic dysfunction acceptable), deep vein thrombosis, pulmonary embolism, second- or third-degree AV block, mitral valve stenosis, hypertrophic cardiomyopathy, or coronary or carotid artery disease likely to require surgical or percutaneous intervention within six months of screening 14. Impaired hepatic function (aspartate amino transaminase [AST] and/or alanine amino transaminase [ALT] >3 x upper limit of normal range) 15. Impaired renal function (eGFR< 50mL/min/1.73m2 as determined by the MDRD equation) 16. History or presence of immunological or hematological disorders 17. Serum potassium >5.2 mmol/L at screening 18. History of serious neurologic disease such as cerebral hemorrhage, stroke, seizure, or transient ischemic attack within six months 19. Hematocrit <35% 20. Diagnosis of asthma requiring use of inhaled beta agonist more than once a week 21. Clinically significant gastrointestinal impairment that could interfere with drug absorption 22. Any underlying or acute disease requiring regular medication which could possibly pose a threat to the subject or make implementation of the protocol or interpretation of the study results difficult, such as arthritis treated with daily use of non-steroidal anti-inflammatory drugs 23. Treatment with chronic systemic glucocorticoid therapy within the last year 24. Treatment with systemic glucocorticoid therapy acutely within six weeks prior to enrollment 25. Treatment with lithium salts 26. History of alcohol or drug abuse 27. Treatment with anticoagulation 28. Treatment with any investigational drug in the one month preceding the study 29. Mental conditions rendering the subject unable to understand the nature, scope, and possible consequences of the study 30. Inability to comply with the protocol, e.g., uncooperative attitude, inability to return for follow-up visits, and unlikelihood of completing the study |
Country | Name | City | State |
---|---|---|---|
United States | University of Pennsylvania | Philadelphia | Pennsylvania |
Lead Sponsor | Collaborator |
---|---|
University of Pennsylvania |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Intact glucagon like peptide-1 (GLP-1) levels after the mixed meal | GLP-1 is a hormone released after a meal that has been shown to improve insulin and glucose dynamics. It is a target for diabetes therapies. We will compare GLP-1 levels during the different drug treatments and at baseline. | This will be measured just before the meal and after the meal at pre-specified time points for a total of four hours. (Time points 0 to 4 hours) | |
Secondary | Insulin levels after the mixed meal | Insulin is a hormone released from the pancreas that helps with blood glucose control. We will measure insulin levels during the different drug treatments and at baseline. | This will be measured just before the meal and after the meal at pre-specified time points for a total of four hours. (Time points 0 to 4 hours) | |
Secondary | Blood glucose levels after the mixed meal | We will compare blood glucose levels during the different drug treatments and at baseline. | This will be measured just before the meal and after the meal at pre-specified time points for a total of four hours. (Time points 0 to 4 hours) | |
Secondary | Triglyceride levels after the mixed meal | Triglycerides are a component of a routine lipid/ cholesterol panel. They rise in the setting of increased fat intake. GLP-1 is thought to decrease triglyceride levels. We will compare triglyceride levels during the different drug treatments and at baseline. | This will be measured just before the meal and after the meal at pre-specified time points for a total of four hours. (Time points 0 to 4 hours) | |
Secondary | Neprilysin enzyme (drug) activity at baseline, during sacubitril/valsartan, and during valsartan | Neprilysin is an enzyme that breaks down several proteins, including glucagon-like peptide-1 (GLP-1). Sacubitril in sacubitril/valsartan is a pro-drug of a neprilysin inhibitor. This assay level will help to determine if the changes seen after the meal are related to alterations in this enzyme activity and administration of the drug sacubitril/valsartan compared to valsartan. We will measure this before the medication is administered (thus at baseline) and two hours after the drug is administered and just prior to the mixed meal. | Time points -120 min (before drug given) and 0 min (2 hours after drug dose, just prior to the meal) |
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