NCT01108120已完成2 期
The Therapeutical Role of Continuous Intra-femoral Artery Infusion of Urokinase on Diabetic Foot Ulcers
Xiang Guang-da1 个研究点 分布在 1 个国家目标入组 200 人开始时间: 2010年5月最近更新:
适应症
干预措施
相关药物
试验速览
- 阶段
- 2 期
- 状态
- 已完成
- 发起方
- 入组人数
- 200
- 试验地点
- 1
- 主要终点
- healing rate of diabetic foot ulcers
研究概览
简要总结
- Diabetic foot ulcers (DFU) are one of the chronic consequences of diabetes which constitute the most important cause of non-traumatic amputation of the inferior limbs. Patients with diabetes are 22 times more likely to have foot ulceration or gangrene than nondiabetics，while foot ulceration precedes 85% of lower-extremity amputation.
- Three factors combine to promote tissue necrosis in diabetic feet: ischemia, neuropathy and trauma. Among them, ischemia peripheral arterial disease may play the important roles in the development of DFU. Moreover, diffuse vascular disease is the main characteristics, and thus it becomes difficult for treatment by using arterial bypass or balloon angioplasty. Therefore, we hypothesized that continuous arterial thrombolysis may be an effective therapy in diabetic foot. The purpose of this study is to investigate the effectiveness and safety of continuous intra-femoral artery injection of urokinase by micro-artery-pump in diabetic ulcers.
详细描述
- We select 200 diabetic patients with Wagner grade 1 ~ 3 foot ulcers. They are divided into two groups randomly: thrombolysis group and control group, 100 cases in each group.
- After diabetic dietary advice, all patients receive insulin therapy to control blood glucose within a range of 5 - 10 mmol/L. Then the patients receive conventional care for their ulcers. To remove extensive callus and necrotic tissue, wound debridement was performed. Broad spectrum antibiotics are prescribed if ulcers show clinical signs of infection. Adjustments to the treatment are performed when indicated on the basis of microbiologic cultures and sensitivity testing.
- The conventional group patients receive an intravenous injection of prostaglandin E1 (20 ug per day)until the healing of ulcers or discharged from hospital. In the continuous intra-femoral thrombolysis group, first of all, a ultrasound Doppler examination of vessels including artery and venous of lower limbs were performed. To avoid pulmonary infarction, a filtrator is placed in the inferior vena cava before the thrombolysis process if ultrasound results show venous thrombosis. Then insert a percutaneous artery canal from femoral artery in another lower limb into the distal of popliteal artery as far as possible. After finishing this process, the outside part of this artery canal is fixed at thigh, and the patients must keep in supine position in the bed.Firstly,20 0000 ~ 40 0000 units urokinase is injected via the catheter to diseased foot. Then, continuous infusion urokinase via femoral artery by an artery pump (100 ml 0.9% sodium chloride + 100 0000 unit urokinase at a rate of 4 ml per one hour) for 7 - 10 days. Finally, patients receive an intravenous injection of prostaglandin E1 (20 ug per day)until the healing of ulcers or discharged from hospital.
- The healing rate of foot ulcers, the time of ulcers, neuropathy symptoms, the period of hospitalization are compared between the two groups during hospitalization.
- The recurrence rate of foot ulcers, cardiovascular events, death from all causes are compared between two groups at 1, 4, 8 years during follow up.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 30 Years 至 80 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •diabetic foot ulcer
- •< = 80 years old
- •diabetic foot ulcer wegnar 2-4 stage
排除标准
- •Wagner grade 0,1 and grade 5
- •severe coronary, cerebral, renal vascular as well as severe liver diseases, malignant neoplasms
- •bleeding individuals
- •> 80 years old
- •heart failure (NYHA 3,4)
研究组 & 干预措施
continuous intra-femoral thrombolysis group
Experimental
Continuous intra-femoral injection urokinase was taken by a mini-pump in 100 diabetic foot ulcers (Wegnar 2 ~ 4 stage) for 7 - 9 days.Then they receive conventional therapy. The healing rate of foot ulcers is observed during hospitalization period. At 1, 4 and 8 year during follow up, the recurrence rate of diabetic foot ulcers are observed.
干预措施: continuous intra-femoral thrombolysis group (Drug)
conventional therapy group
Active Comparator
Conventional therapy group receives an intravenous injection of prostaglandin E1 20 ug per day. The follow up was taken for 8 years.
干预措施: Conventional therapy group (Drug)
结局指标
主要结局
healing rate of diabetic foot ulcers
时间窗: < half a year
During hospitalization, the healing rate of foot ulcers is observed.
The recurrence rate of diabetic foot ulcers
时间窗: 8 years
During the 8 years of follow up period, recurrence rate of diabetic foot ulcers are observed at 1, 4, 8 year.
次要结局
- cardiovascular events during the follow up period(8 years)
研究者
Xiang Guang-da
Director of Endocrinol Dept.
Wuhan General Hospital of Guangzhou Military Command
研究点 (1)
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