Lipid Peroxidation and Options Antioxidant Therapy for Secondary Lymphedema of the Lower Extremities

  • STATUS
    Not Recruiting
  • days left to enroll
    21
  • participants needed
    120
  • sponsor
    Ryazan State Medical University
Updated on 8 August 2022

Summary

A single-center, open, prospective, randomized, controlled clinical trial will include 120 patients with lower limb lymphedema who undergo treatment in an office-based vascular lab at the Ryazan regional clinical cardiology dispensary, Ryazan, Russia. The patients will be recruited by the staff of the Department of cardiovascular, endovascular, operative surgery, and topographic anatomy, Ryazan state I.P. Pavlov medical university, Russia. The study will include patients who meet the inclusion criteria and do not meet the exclusion criteria. Patients will be divided into 4 groups, 30 subjects each. Group 1-patients with lower limb lymphedema who will receive conservative therapy with elastic compression and an antioxidant (Tocopherol-400 IU/day); Group 2-patients with lower limb lymphedema who will receive conservative therapy with Micronised purified flavonoid fraction (diosmin+flavonoids expressed as hesperidin)-1000mg/day) in addition to elastic compression; Group 3-patients with lower limb lymphedema who will be treated with elastic compression; Group 4- healthy volunteers with no history or clinical signs of venous or lymphatic disease; The duration of this study for each subject will be a maximum of 90 days. Pre-screening and screening will involve 200 subjects with a total of 120 subjects who will be randomized into the study. Peripheral blood samples will be collected to evaluate the activity of biochemical markers of endothelial function; the quality of life will also be assessed.

Description

Research methods:

  1. Physical examination;
  2. peripheral blood sampling (assessment of the concentration of the markers of endothelial dysfunction, including malondialdehyde (MDA), superoxide dismutase (SD), catalase( CAT), glutathione peroxidase (GP). MDA concentration will be determined with a competitive enzyme immunoassay (ELISA), which will be performed using a General MDA assessment kit (manufacturer: USCN Life Science Inc. US-CEA597GE). CAT concentration will be determined using a competitive enzyme immunoassay (ELISA), which will be performed with a kit for quantitative in vitro assessment of catalase (manufacturer: USCN Life Science Inc. US-SEC418Hu). GP concentration will be determined with a competitive enzyme immunoassay (ELISA), which will be performed using a glutathione peroxidase quantification set (abfrontier supplier, Republic of Korea - LF- EK0110). SOD concentration will be determined using a competitive enzyme immunoassay (ELISA), which will be performed using a total superoxide dismutase detection kit (supplier Cayman Chemical Company, US - 706002).
  3. Lower limb venous sonography with a linear 5-13 MHz probe;
  4. Patient questionnaire using a Russian-language version of the Quality of life questionnaire "SF-36 Health Status Survey"

Details
Condition Lower Extremity Lymphedema
Treatment Tocopherol, Micronised purified flavonoid fraction (diosmin+flavonoids expressed as hesperidin), Elastic compression
Clinical Study IdentifierNCT04360889
SponsorRyazan State Medical University
Last Modified on8 August 2022

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