Type 2 Diabetes Clinical Trial
Official title:
Liraglutide Efficacy and Action on Type 2 Diabetes With Peripheral Atherosclerotic intErmittent Claudication (LEADPACE STUDY): a Prospective, 24-week, Multicenter, Randomized, Controlled Clinical Study
Diabetic lower extremity arterial disease ( DLEAD ), is a common complication of type 2 diabetes. However, DLEAD remains less studied than other diabetic vascular complications; and only few randomised controlled trials (RCTs) have dealt with major lower-limb adverse events as prespecified endpoints. Studies have suggested that glucagon-like peptide-1 (GLP-1) analogues have a protective effect on the development of atherosclerosis, potentially mediated via the GLP-1 receptors expressed on endothelial cells, smooth muscle cells, and in monocytes/macrophages. The investigators aim to evaluate the improvement of lower extremity ischemia in patients with type 2 diabetes mellitus complicated with lower limb vascular lesions after liraglutide, compared with the standard-of-care treatment group.
Status | Recruiting |
Enrollment | 200 |
Est. completion date | December 31, 2021 |
Est. primary completion date | December 31, 2021 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 40 Years and older |
Eligibility | Inclusion Criteria: - Informed consent - type 2 diabetes (1999 WHO criteria) - 7.5=HbA1c =14% - Age > 40 years - lower extremity PAD with symptom - Absence of distal arterial pulse. - ABI less than 0.9 or the value decreased by more than 15% after treadmill test. - Presence of stenosis or occlusion of lower extremity arteries as determined by Duplex ultrasound imaging or lower extremity CTA; or lower extremity DSA(Digital Substraction Angiography). Exclusion Criteria: - Type 1 diabetes - Other Concomitant illness: 1) poorly controlled hypertension: >160 mmHg systolic blood pressure and/or>100 mmHg diastolic blood pressure (with or without long-term oral antihypertensive drugs); 2) Chronic heart failure NYHA class (III-IV); 3) An acute coronary or cerebro-vascular event within the previous 6 months; 4) hematological malignancies such as acute or chronic myeloid leukemia, or any other hematological disorders that would interfere with the determination of circulating EPC levels; 5) Personal history of non-familial medullary thyroid carcinoma; 6) Immunological disorders such as lupus, psoriasis, scleroderma and rheumatoid arthritis which would interfere with the determination of circulating EPC levels; 7) Chronic haemodialysis or chronic peritoneal dialysis; 8) End stage liver disease, presence of acute or chronic liver disease or recent history of the following: ALT level = 3 times the upper limit of normal, or AST level = 3 times the upper limit of normal; 9) Severe gastrointestinal diseases, such as gastrointestinal ulcer, gastrointestinal bleeding, pyloric stenosis, gastric bypass surgery; 10) History of chronic pancreatitis or idiopathic acute pancreatitis; 11) Any acute condition or exacerbation of chronic condition that would in the Investigator's opinion interfere with the initial trial visit schedule and procedures; 12) Inability to walk on a tredamill without grade at a speed of at least 3.2 km/h for at least 2 minutes. - Drugs: 1) Known or suspected hypersensitivity to trial products or related products ; 2) Use of GLP-1 receptor agonist (exenatide (BID or OW), liraglutide, or other) within 6 months prior to screening; 3).Alcohol or drugs abuse. - 4. Acute decompensation of glycaemic control requiring immediate intensification of treatment to prevent acute complications of diabetes (eg diabetes ketoacidosis) within 90 days prior to screening. - Recent (within 6 months) surgery or trauma. - Pregnancy and lactation. - Psychiatric disorders - Simultaneous participation in any other clinical trial of an investigational agent. |
Country | Name | City | State |
---|---|---|---|
China | The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University | Wenzhou | Zhejiang |
Lead Sponsor | Collaborator |
---|---|
Second Affiliated Hospital, School of Medicine, Zhejiang University |
China,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Initial and absolute claudication distance | The primary outcome measures used to assess efficacy were pain-free walking distance (distance walked to the onset of symptoms, or the initial claudication distance [ICD]) and the maximum distance walked (absolute claudication distance [ACD]) on standardized treadmill testing. Evaluation of walking performance was accomplished with standardized treadmill testing. A constant speed of 3.2 km/h (2mile/h) and a fixed incline of 12.5% were used. | 24 weeks | |
Secondary | Assess the effects on ABI of a six month treatment with Liraglutide compared to control group (standard-of-care treatment). | ankle-brachial index is ratio of ankle systolic pressure to arm systolic pressure: using a 10-12 cm sphygmomanometer cuff placed just above the ankle and a doppler instrument used to measure the systolic pressure of the posterior tibial and dorsalis pedis arteries of each leg. These pressures are then normalized to the higher brachial pressure of either arm to form the ankle-brachial index (ABI). The index leg is often defined as the leg with the lower ABI. | 24 weeks | |
Secondary | Assess the effects on endothelial function of a six month treatment with Liraglutide compared to control group (standard-of-care treatment). | Assess the effects on endothelial function of a six month treatment with Liraglutide compared to conventional treatment, assessed as the baseline corrected change in endothelial function by flow-mediated vasodilation (FMD) of the brachial artery at 6 months. | 24 weeks | |
Secondary | Muscle microvascular perfusion by CEU | Contrast enhanced ultrasound (CEU) performed by experienced radiologists is used for contrast ultrasonographic examination of skeletal muscle. | 24 weeks | |
Secondary | Assess the effects on the endothelial circulating progenitor cells concentration of a six month treatment with Liraglutide compared to control group (standard-of-care treatment). | Circulating progenitor cells (EPCs) will be quantified using flow cytometry before and after 6 month treatment GLP-1 receptor agonist or conventional therapy (control group). Briefly, after erythrocyte lysis, peripheral blood will be stained with 10µL fluorescein isothiocyanate-conjugated anti-human CD34 mAb, 10µL phycoethrin-conjugated anti-human KDR mAb, and 10µL allophycocyanin-conjugated anti-CD133 mAb. | 24 weeks | |
Secondary | Changes from baseline in HbA1c | Change from baseline to last assessment during the treatment period in HbA1c | 24 weeks |
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