Diabetic Foot, Arterial Occlusive Disease, Ischemia
Conditions
Keywords
Diabetes, urokinase, ulcer healing, major amputation, survival
Brief summary
The purpose of this study is to determine whether the additional therapy with low dose urokinase is more effective than only a conventional standard therapy concerning ulcer-healing, rate of major amputation and survival.
Detailed description
Patients with diabetic foot ulceration and critical limb ischemia have a high risk of major amputation, especially if limbs can not be revascularized. Urokinase is effective in critical limb ischemia by lowering fibrinogen and might improve outcomes. The effect and safety of urokinase treatment was investigated in a phase II clinical trial. Based on the results this trial was planned to investigate the effect and safety of an additional therapy with urokinase versus a single conventional therapy.
Interventions
wound debridement, moist wound dressing
Daily infusion up to 21 applications, dose dependent on fibrinogen level: \> 2,5g/l 1 000 000 IU, \< 2,5g/l 500 000 IU
Sponsors
Study design
Eligibility
Inclusion criteria
* Diabetic patients with angiopathic or angioneuropathic diabetic foot syndrome and criticial limb ischemia * No surgical or interventional treatment option * No healing tendency of ulcerations despite of antibiosis and wound debridement after two-week treatment * Fibrinogen \> 4.0 g/l * No previous major amputation
Exclusion criteria
* Prior treatment of the current ulceration with urokinase * Need for dialysis and/or creatinine-clearance \< 20ml/min * INR \> 1,5 at screening * Any kind of cerebral event within 3 months prior inclusion * Proliferative retinopathy * Uncontrolled hypertension * Hemorraghic diathesis * Gastrointestinal bleeding * Pregnancy * No compliance and/or participation in another trial
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Major amputation free survival | Within twelve months after randomisation |
Secondary
| Measure | Time frame |
|---|---|
| Total survival, major amputation rate, rate of complete ulcer healing, rate of adverse events | Within twelve month after randomisation |
Countries
Germany