Actively Recruiting
Evaluation of the Efficacy and Safety of Vascular Regulatory Polypeptides for Lower Extremity Atherosclerotic Arterial Occlusive Disease Treatment
Led by Ryazan State Medical University · Updated on 2023-07-06
120
Participants Needed
1
Research Sites
13 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
Researchers are evaluating the role of markers of endothelial dysfunction in the blood of patients with lower extremity atherosclerotic arterial occlusive disease who are undergoing open reconstructive interventions. The study aims to assess these markers in different stages of the disease and compare various treatment approaches, including conservative therapy and surgical methods. The research will involve 120 patients divided into four groups based on disease severity and treatment type, focusing on understanding how these markers relate to disease progression and treatment outcomes. Participants will be assigned to one of four groups: those receiving routine conservative treatment; those receiving conservative treatment plus a drug based on vascular polypeptides called Slavinorm4; those undergoing femoral-popliteal bypass grafting surgery combined with conservative treatment; and those receiving both surgery and the polypeptide drug treatment. The polypeptide treatment involves intramuscular injections of 5 mg, given twice weekly for a total of 10 injections. Surgical treatment consists of bypass grafting with a synthetic graft above the knee. Throughout the study, participants will be monitored for outcomes such as thrombosis of lower arteries or bypass grafts, disease progression, and restenosis over one year. Secondary measures include limb loss, changes in pain-free walking distance, and ankle-brachial index improvements. Researchers will use instrumental methods like ultrasonography or angiography for diagnosis and follow-up. The study lasts up to one year with assessments of clinical status, walking ability, and vascular function to evaluate the safety and efficacy of the treatments.
CONDITIONS
Brief Title
Efficacy and Safety of the Regulatory Polypeptides in Patients With Peripheral Atherosclerosis.
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Men or women over 18 years old
- Diagnosis of lower extremity atherosclerotic arterial occlusive disease confirmed by ultrasonography or angiography
- Ability to walk on a treadmill at a speed of at least 3.2 km/h (2 mph) for at least 2 minutes during screening
- Patients with stage IIA-IIB or stage III-IV disease according to the Fontaine-Pokrovsky classification
- Patients agreeing to receive conservative therapy, surgical treatment, or polypeptide drug treatment as per study grouping
You will not qualify if you...
- Under 18 years of age
- History of anaphylaxis or hypersensitivity to Slavinorm4 or animal proteins
- Absolute or relative contraindications to treadmill testing
- Inability to walk at minimum treadmill speed and angle for at least 2 minutes during screening
- ST segment depression over 1 mm on ECG
- Peripheral artery disease not caused by atherosclerosis
- Previous reconstructive surgery or invasive arterial interventions without intermittent claudication symptoms
- Angina pectoris functional class III-IV according to CCS
- Body mass index over 35 kg/m2
- Acute or chronic kidney failure with creatinine clearance less than 30 ml/min
- Liver failure with AST or ALT over three times normal limits
- Chronic heart failure functional class III-IV according to NYHA
- Acute coronary syndrome within 6 months before screening
- Any clinically significant condition or comorbidity that would prevent participation based on investigator judgment
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Your Study Journey
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Duration - Approximately 5 weeks for polypeptide injections; surgical treatment and conservative therapy durations vary.
Participants receive conservative therapy, surgical treatment, and/or treatment with vascular polypeptides according to their assigned group.
Up to 10 visits for polypeptide injections (twice weekly), surgical treatment visit, and routine conservative therapy visits as per clinical guidelines
Duration - Up to 1 year
Participants are monitored for safety and effectiveness outcomes including artery or graft status, disease progression, and limb function.
Periodic visits during the year for assessment of treatment outcomes
Trial Site Locations
Total: 1 location
1
RyazanSMU
Ryazan, Russia
Actively Recruiting
Research Team
I
Igor Aleksadrovich Suchkov
How is the study designed?
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
NON_RANDOMIZED
Model
PARALLEL
Primary Purpose
TREATMENT
Number of Arms
4
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