Blood Pressure Outcomes With Liraglutide Therapy (BOLT)
Primary Purpose
Type 2 Diabetes, Systolic Hypertension
Status
Completed
Phase
Phase 4
Locations
Canada
Study Type
Interventional
Intervention
Liraglutide
Placebo
Sponsored by

About this trial
This is an interventional basic science trial for Type 2 Diabetes focused on measuring Type 2 Diabetes, Hypertension, Liraglutide, GLP-1
Eligibility Criteria
Inclusion Criteria:
- Men and women between the ages of 30-70.
- Patients with Type 2 Diabetes [diagnosed by their physician] with a serum HbA1c ≥ 6.5% and ≤ 10%.
- Patients currently prescribed 0-2 oral hypoglycemic agents by their physician.
- Patients with systolic blood pressure ≥ 130 mmHg and ≤ 180 mmHg measured by an automated oscillometric blood pressure device [BPTru® or DinaMAP®].
Exclusion Criteria:
- Individuals with Type 1 Diabetes, [or secondary forms of diabetes including gestational diabetes, transplant-associated, glucocorticoid-associated, latent-onset diabetes of the adult, or known monogenic forms of diabetes].
- Elevated LVEDP (left ventricular end-diastolic pressure) including congestive heart failure, cardiomyopathy, atrial fibrillation, any valvular heart disease (rated by echocardiography and/or clinically by a cardiologist as moderate or severe in nature), and or elevated RVEDP (right ventricular end-diastolic pressure) including pulmonary hypertension.
- Moderate renal failure or dysfunction as indicated by a serum creatinine >150 μmol/l, and/or an estimated GFR (Glomerular Filtration Rate) less than 59 ml/min per 1.73m2.
- Individuals with secondary forms of hypertension including primary hyperaldosteronism, renal artery stenosis, obstructive sleep apnea, pheochromocytoma, hyperthyroidism, acromegaly, exogenous systemic glucocorticoid use, hypercortisolism.
- Current pregnancy, or recent pregnancy within the last 3 months, or current breast-feeding. Female patients of child bearing potential [premenopausal, or not surgically sterile] who are unwillingly to have a baseline serum pregnancy test, and/or who are unwillingly to use active contraception throughout the duration of the study.
- Use within the last 3 months of any DPP-IV (Dipeptidyl Peptidase) inhibitor, GLP-1 receptor agonist [liraglutide, exenatide (ExBID, or Ex QW)], or insulin [bolus, pre-mixed, or prandial].
- Liver failure, including liver cirrhosis or non-alcoholic fatty liver disease.
- Dependence upon alcohol, >14 servings per week if male, >9 servings per week if female.
- Prior history of any clinical presentation consistent with pancreatitis [acute or chronic], or a history of medullary thyroid cancer, c-cell hyperplasia or history of multiple endocrine neoplasia syndromes which predisposes to medullary thyroid cancer [Multiple Endocrine Neoplasia Type 2].
- Individuals with severe systolic hypertension, SBP (systolic blood pressure) ≥ 181 mmHg measured by an automated oscillometric blood pressure device [BPTru® or DinaMAP®].
- Individuals with severe diastolic hypertension, DBP (diastolic blood pressure) ≥ 100 mmHg measured by an automated oscillometric blood pressure device [BPTru® or DinaMAP®].
- Individuals currently prescribed an insulin secretagogue [sulphonylurea] unwillingly to decrease their dose by 50% prior to the start of, and for the duration of the study.
- Individuals with resting tachycardia of >100 bpm or individuals who have a prior history of known conduction abnormalities associated with tachycardia including atrial fibrillation, atrial flutter, prolongation of PR interval, or ventricular tachycardias.
- Current involvement, or any recent involvement [within 3 months] in any other clinical trial involving an investigational product.
- Unwillingness to perform daily sc injection with study drug therapy for duration of 21 days throughout 2 treatment phases.
- Individuals who are currently taking or who have taken diuretic therapy in the past 3 months.
Sites / Locations
- Leadership Sinai Centre for Diabetes, Mount Sinai Hospital, Canada
Arms of the Study
Arm 1
Arm 2
Arm Type
Experimental
Placebo Comparator
Arm Label
Liraglutide
Placebo
Arm Description
Liraglutide 0.6mg for 7 days, liraglutide 1.2mg for 7 days, liraglutide 1.8mg for 7 days
Placebo 0.6mg sc for 3 weeks, Placebo 1.2mg sc for 3 weeks, Placebo 1.8mg for 3 weeks.
Outcomes
Primary Outcome Measures
Change in plasma ANP level at 1 Day
+16.72 pg/mL, P = 0.24, 95% CI [-12.1, +45.5] at 2 hours
Change in plasma ANP level at 21 Days
-17.42 pg/mL, 95% CI [-36.0, +1.21] at 2 hours
Secondary Outcome Measures
Change in mean 24-Hr urinary sodium excretion rate following 21 days of liraglutide (titrated 1.8mg) compared to crossover with placebo (baseline-subtracted)
median change +14.18 mmol/L liraglutide vs. placebo (statistically significant, Wilcoxon rank sum)
Change in mean Nighttime urinary sodium excretion rate following 21 days of liraglutide (titrated 1.8mg) compared to crossover with placebo (baseline-subtracted)
median change +4.24 mmol/L nighttime, liraglutide vs. placebo (statistically significant, Wilcoxon Rank Sum)
Change in mean 24-Hr systolic BP, liraglutide compared to crossover with placebo (baseline-subtracted)
+2.33 ± 1.67, p=0.18;Treatment difference liraglutide (1.8 mg) vs. placebo LSMD (±SE), p value
Change in mean 24-hr diastolic BP, liraglutide compared to crossover with placebo (baseline-subtracted)
+3.78 ± 1.34, p=0.01;Treatment difference liraglutide (1.8 mg) vs. placebo LSMD (±SE), p value
Change in mean 24-hr HR, liraglutide compared to crossover with placebo (baseline-subtracted)
+5.21 ± 2.42, p=0.05; Treatment difference liraglutide (1.8 mg) vs. placebo LSMD (±SE), p value
Office-measured systolic BP; Treatment difference for liraglutide compared to crossover with placebo
-2.35 mmHg (3.49), p=0.51;Treatment difference liraglutide (1.8 mg) vs. placebo LSMD (±SE), p value
Office-measured diastolic BP;Treatment difference for liraglutide compared to crossover with placebo
+3.6 mmHg (2.33), p=0.14;Treatment difference liraglutide (1.8 mg) vs. placebo LSMD (±SE), p value
Office-measured heart rate;Treatment difference for liraglutide compared to crossover with placebo
+9.25 (3.51), p=0.02;Treatment difference liraglutide (1.8 mg) vs. placebo LSMD (±SE), p value
Full Information
NCT ID
NCT01755572
First Posted
December 19, 2012
Last Updated
March 23, 2015
Sponsor
Mount Sinai Hospital, Canada
Collaborators
Novo Nordisk A/S
1. Study Identification
Unique Protocol Identification Number
NCT01755572
Brief Title
Blood Pressure Outcomes With Liraglutide Therapy
Acronym
BOLT
Official Title
Hormonal Regulation of Systolic Blood Pressure in Response to the GLP-1 (Glucagon-Like Peptide-1) Receptor Agonist, Liraglutide.
Study Type
Interventional
2. Study Status
Record Verification Date
March 2015
Overall Recruitment Status
Completed
Study Start Date
January 2013 (undefined)
Primary Completion Date
January 2014 (Actual)
Study Completion Date
March 2014 (Actual)
3. Sponsor/Collaborators
Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Mount Sinai Hospital, Canada
Collaborators
Novo Nordisk A/S
4. Oversight
Data Monitoring Committee
No
5. Study Description
Brief Summary
Purpose:
The purpose of this study is to further study the mechanism by which liraglutide, a relatively new anti-hyperglycemic medication, might lower blood pressure in patients with Type 2 diabetes and high blood pressure.
Detailed Description
Background: Type 2 diabetes is a worldwide health problem. As the reduction in blood pressure has been coupled to improvements in overall cardiovascular outcomes, the control of hypertension has become an important modifiable risk factor in the overall care of the patient with Type 2 Diabetes, in addition to glycemic control. Recently, several large-scale clinical trials evaluating the glucose-lowering effects of the anti-hyperglycemic agent, liraglutide (a glucagon-like peptide-1 receptor agonist), have demonstrated a modest yet persistent anti-hypertensive effect in patients with Type 2 diabetes.
Study Objectives: Accordingly, the goal of this small study is to understand whether the blood pressure lowering effect of liraglutide is coupled to the release of vasoactive mediators which may stimulate natriuresis and/or diuresis and lower systolic blood pressure.
Study Design: Randomized, double-masked, cross-over study with treatment of liraglutide or placebo for 3 weeks, with an intervening washout period for 3 weeks, and cross-over to identical treatment with placebo or liraglutide for 3 weeks.
Study Patients: 20 patients with Type 2 Diabetes and Systolic Hypertension
Endpoints: Change in vasoactive hormones, 24-hour ambulatory blood pressure, urinary sodium excretion patterns.
6. Conditions and Keywords
Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Type 2 Diabetes, Systolic Hypertension
Keywords
Type 2 Diabetes, Hypertension, Liraglutide, GLP-1
7. Study Design
Primary Purpose
Basic Science
Study Phase
Phase 4
Interventional Study Model
Crossover Assignment
Masking
ParticipantInvestigatorOutcomes Assessor
Allocation
Randomized
Enrollment
22 (Actual)
8. Arms, Groups, and Interventions
Arm Title
Liraglutide
Arm Type
Experimental
Arm Description
Liraglutide 0.6mg for 7 days, liraglutide 1.2mg for 7 days, liraglutide 1.8mg for 7 days
Arm Title
Placebo
Arm Type
Placebo Comparator
Arm Description
Placebo 0.6mg sc for 3 weeks, Placebo 1.2mg sc for 3 weeks, Placebo 1.8mg for 3 weeks.
Intervention Type
Drug
Intervention Name(s)
Liraglutide
Other Intervention Name(s)
Victoza
Intervention Description
Single cross-over study, 1 arm starting with liraglutide for 3 weeks crossed-over to placebo for 3 weeks, and 1 arm starting with placebo with cross-over to liraglutide for 3 weeks.
Intervention Type
Drug
Intervention Name(s)
Placebo
Intervention Description
Single cross-over study, 1 arm starting with liraglutide for 3 weeks crossed-over to placebo for 3 weeks, and 1 arm starting with placebo with cross-over to liraglutide for 3 weeks.
Primary Outcome Measure Information:
Title
Change in plasma ANP level at 1 Day
Description
+16.72 pg/mL, P = 0.24, 95% CI [-12.1, +45.5] at 2 hours
Time Frame
Change from Baseline compared in plasma ANP following 1 dose of liraglutide (0.6 mg) compared to crossover treatment with placebo at the 2-hour timepoint
Title
Change in plasma ANP level at 21 Days
Description
-17.42 pg/mL, 95% CI [-36.0, +1.21] at 2 hours
Time Frame
Change from Baseline in plasma ANP following 21 days of liraglutide (titrated to 1.8 mg) compared to crossover treatment with placebo at the 2-hour timepoint
Secondary Outcome Measure Information:
Title
Change in mean 24-Hr urinary sodium excretion rate following 21 days of liraglutide (titrated 1.8mg) compared to crossover with placebo (baseline-subtracted)
Description
median change +14.18 mmol/L liraglutide vs. placebo (statistically significant, Wilcoxon rank sum)
Time Frame
21 days
Title
Change in mean Nighttime urinary sodium excretion rate following 21 days of liraglutide (titrated 1.8mg) compared to crossover with placebo (baseline-subtracted)
Description
median change +4.24 mmol/L nighttime, liraglutide vs. placebo (statistically significant, Wilcoxon Rank Sum)
Time Frame
21 days
Title
Change in mean 24-Hr systolic BP, liraglutide compared to crossover with placebo (baseline-subtracted)
Description
+2.33 ± 1.67, p=0.18;Treatment difference liraglutide (1.8 mg) vs. placebo LSMD (±SE), p value
Time Frame
21 days
Title
Change in mean 24-hr diastolic BP, liraglutide compared to crossover with placebo (baseline-subtracted)
Description
+3.78 ± 1.34, p=0.01;Treatment difference liraglutide (1.8 mg) vs. placebo LSMD (±SE), p value
Time Frame
21 days
Title
Change in mean 24-hr HR, liraglutide compared to crossover with placebo (baseline-subtracted)
Description
+5.21 ± 2.42, p=0.05; Treatment difference liraglutide (1.8 mg) vs. placebo LSMD (±SE), p value
Time Frame
21 days
Title
Office-measured systolic BP; Treatment difference for liraglutide compared to crossover with placebo
Description
-2.35 mmHg (3.49), p=0.51;Treatment difference liraglutide (1.8 mg) vs. placebo LSMD (±SE), p value
Time Frame
21 days
Title
Office-measured diastolic BP;Treatment difference for liraglutide compared to crossover with placebo
Description
+3.6 mmHg (2.33), p=0.14;Treatment difference liraglutide (1.8 mg) vs. placebo LSMD (±SE), p value
Time Frame
21 days
Title
Office-measured heart rate;Treatment difference for liraglutide compared to crossover with placebo
Description
+9.25 (3.51), p=0.02;Treatment difference liraglutide (1.8 mg) vs. placebo LSMD (±SE), p value
Time Frame
21 days
Other Pre-specified Outcome Measures:
Title
Change in HbA1c%
Description
-0.7%, p=0.005; least squares mean difference, liraglutide compared placebo
Time Frame
21 days
Title
Change in Fasting Blood Glucose
Description
-3.4 mmol/L, p=0.0004; least squares mean difference, liraglutide compared to crossover with placebo, p-value
Time Frame
21 days
Title
Change in Total Cholesterol
Description
-0.63 mmol/L, p=0.002; least squares mean difference, liraglutide compared to crossover with placebo, p-value
Time Frame
21 days
Title
Change in LDL Cholesterol
Description
-0.37 mmol/L, p=0.04; least squares mean difference, liraglutide compared to crossover with placebo, p-value
Time Frame
21 days
Title
Change in eGFR (estimated Glomerular Filtration Rate)
Description
-5.76 ml/min/1.73m2 (2.60), p=0.04; least squares mean difference, liraglutide compared to crossover with placebo, (SE), p-value
Time Frame
21 days
Title
Change in Body Weight
Description
+1.35 Kg (0.46), p=0.009; least squares mean difference (SE), p-value, liraglutide compared to crossover with placebo
Time Frame
21 days
Title
Change in BMI (Body Mass Index)
Description
-0.42 Kg/cm2 (0.18), p=0.03; least squares mean difference (SE), p-value, liraglutide compared to crossover with placebo
Time Frame
21 days
Title
Change in Plasma Angiotensin II
Description
-0.97 pmol/L (0.86), p=0.28; least squares mean difference (SE), p-value, liraglutide compared to placebo
Time Frame
21 days
Title
Change in Plasma CRP
Description
0.09 mg/L (0.80), p=0.91; least squares mean difference (SE), p-value, liarglutide compared to placebo
Time Frame
21 days
Title
Change in Triglycerides
Description
-0.2 mmol/L (0.18), p=0.28;least squares mean difference (SE), p-value, liarglutide compared to placebo
Time Frame
21 days
Title
Change in HDL
Description
+0.083 mmol/L (0.03), p=0.02;least squares mean difference (SE), p-value, liarglutide compared to placebo
Time Frame
21 days
10. Eligibility
Sex
All
Minimum Age & Unit of Time
30 Years
Maximum Age & Unit of Time
70 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria:
Men and women between the ages of 30-70.
Patients with Type 2 Diabetes [diagnosed by their physician] with a serum HbA1c ≥ 6.5% and ≤ 10%.
Patients currently prescribed 0-2 oral hypoglycemic agents by their physician.
Patients with systolic blood pressure ≥ 130 mmHg and ≤ 180 mmHg measured by an automated oscillometric blood pressure device [BPTru® or DinaMAP®].
Exclusion Criteria:
Individuals with Type 1 Diabetes, [or secondary forms of diabetes including gestational diabetes, transplant-associated, glucocorticoid-associated, latent-onset diabetes of the adult, or known monogenic forms of diabetes].
Elevated LVEDP (left ventricular end-diastolic pressure) including congestive heart failure, cardiomyopathy, atrial fibrillation, any valvular heart disease (rated by echocardiography and/or clinically by a cardiologist as moderate or severe in nature), and or elevated RVEDP (right ventricular end-diastolic pressure) including pulmonary hypertension.
Moderate renal failure or dysfunction as indicated by a serum creatinine >150 μmol/l, and/or an estimated GFR (Glomerular Filtration Rate) less than 59 ml/min per 1.73m2.
Individuals with secondary forms of hypertension including primary hyperaldosteronism, renal artery stenosis, obstructive sleep apnea, pheochromocytoma, hyperthyroidism, acromegaly, exogenous systemic glucocorticoid use, hypercortisolism.
Current pregnancy, or recent pregnancy within the last 3 months, or current breast-feeding. Female patients of child bearing potential [premenopausal, or not surgically sterile] who are unwillingly to have a baseline serum pregnancy test, and/or who are unwillingly to use active contraception throughout the duration of the study.
Use within the last 3 months of any DPP-IV (Dipeptidyl Peptidase) inhibitor, GLP-1 receptor agonist [liraglutide, exenatide (ExBID, or Ex QW)], or insulin [bolus, pre-mixed, or prandial].
Liver failure, including liver cirrhosis or non-alcoholic fatty liver disease.
Dependence upon alcohol, >14 servings per week if male, >9 servings per week if female.
Prior history of any clinical presentation consistent with pancreatitis [acute or chronic], or a history of medullary thyroid cancer, c-cell hyperplasia or history of multiple endocrine neoplasia syndromes which predisposes to medullary thyroid cancer [Multiple Endocrine Neoplasia Type 2].
Individuals with severe systolic hypertension, SBP (systolic blood pressure) ≥ 181 mmHg measured by an automated oscillometric blood pressure device [BPTru® or DinaMAP®].
Individuals with severe diastolic hypertension, DBP (diastolic blood pressure) ≥ 100 mmHg measured by an automated oscillometric blood pressure device [BPTru® or DinaMAP®].
Individuals currently prescribed an insulin secretagogue [sulphonylurea] unwillingly to decrease their dose by 50% prior to the start of, and for the duration of the study.
Individuals with resting tachycardia of >100 bpm or individuals who have a prior history of known conduction abnormalities associated with tachycardia including atrial fibrillation, atrial flutter, prolongation of PR interval, or ventricular tachycardias.
Current involvement, or any recent involvement [within 3 months] in any other clinical trial involving an investigational product.
Unwillingness to perform daily sc injection with study drug therapy for duration of 21 days throughout 2 treatment phases.
Individuals who are currently taking or who have taken diuretic therapy in the past 3 months.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Dr. Daniel J. Drucker, MD
Organizational Affiliation
Samuel Lunenfeld Research Institute
Official's Role
Principal Investigator
First Name & Middle Initial & Last Name & Degree
Dr. Julie A. Lovshin, MD, PhD
Organizational Affiliation
Samuel Lunenfeld Research Institute
Official's Role
Study Director
First Name & Middle Initial & Last Name & Degree
Dr. Bernard Zinman, MD
Organizational Affiliation
Leadership Sinai Centre for Diabetes
Official's Role
Study Director
First Name & Middle Initial & Last Name & Degree
Dr. Alexander A. Logan, MD
Organizational Affiliation
Samuel Lunenfeld Research Institute
Official's Role
Study Director
Facility Information:
Facility Name
Leadership Sinai Centre for Diabetes, Mount Sinai Hospital, Canada
City
Toronto
State/Province
Ontario
Country
Canada
12. IPD Sharing Statement
Citations:
PubMed Identifier
25414155
Citation
Lovshin JA, Barnie A, DeAlmeida A, Logan A, Zinman B, Drucker DJ. Liraglutide promotes natriuresis but does not increase circulating levels of atrial natriuretic peptide in hypertensive subjects with type 2 diabetes. Diabetes Care. 2015 Jan;38(1):132-9. doi: 10.2337/dc14-1958. Epub 2014 Nov 20.
Results Reference
result
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Blood Pressure Outcomes With Liraglutide Therapy
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