Feasibility and Safety and Evaluation of the Potential Efficacy of Autologous Platelet-rich Plasma in the Treatment of Vascular Venous Ulcers (PRP-2012)

Basque Health Service

Status and phase: Completed; Phase 2; Phase 1

Conditions: Chronic Ulcer

Treatments: Device: Osakidetza protocol; Drug: Platelet Rich Plasma

Study type: Interventional

Funder types: Other

Identifiers

NCT01817218

2012-002247-20

Details and patient eligibility

About

INTRODUCTION: Vascular ulcers are an important pathology in the daily medical practice in all the assistance levels, and they have big repercussion referring to individual, social and labour levels, supposing a big consumption of human and material resources.The cure with autologous platelet rich plasma (autologous PRP) has demonstrated in different studies a decrease in the cicatrization time comparing to conventional methods in hospital levels, which becomes interesting contrasting its efficacy in primary care.

AIM:Evaluate the practicability, security and potential of the autologous PRP in the treatment of vascular ulcers, comparing to the conventional treatment ( cure with humid environment), in primary care patients with chronic venous insufficiency in C-6 degree (CEAP classification).

DESIGN:A pilot study will be executed, which will consist in a randomized clinical test, multicentred, in parallel groups and opened. 40 patients suffering of venous vascular ulcers will be studied, who will be between the age of 40-80 years old, and who will be attached to five health centers. Variables for the identification, following, result and patient profile have been defined. Emphasize the variables of "ulcer area decreasing", "CIVIQ index", "% one cure per week" .

Enrollment: 40 estimated patients

Sex: All

Ages: 40+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Patients resident in Barakaldo, who are seen in treatment rooms at the Zaballa outpatient clinic or one of the following health centres: Zaballa, La Paz, Urban, or San Vicente, in the Ezkerraldea-Enkarterri Health Region of the Basque Health Service - Osakidetza.
• Men or women of 40 to100 years of age
• Patients with stage C6 chronic venous insufficiency according to the CEAP classification
• Patients with vascular ulcers which have not responded to conventional treatment in 2 to 6 months
• Patients who present an analytical before entering the study with a normal range of number of platelets, red blood cells and hematocrit
• An ulcer of 3-5 cm in diameter
• An ABI of greater than or equal to 0.8 or less than or equal to 1.5.
• Independent patients or with sufficient family support
• Patients have given written informed consent

Exclusion criteria

• Patients with chronic treatment with immunosuppressive or retroviral drugs
• Coagulopathies
• Patients with chronic infectious diseases
• Patients under radiotherapy or chemotherapy
• Patients with a history of neoplasia
• Patients with more than two active ulcers
• Pregnant women
• Patients with active cellulitis or fever
• An ABI of less than 0.8 or more than 1.5.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

---

40 participants in 2 patient groups

PRP (Platelet Rich Plasma)

Experimental group

Description:

PRP treatment of vascular ulcers one a week PRP: a volume of 9-30 ml of blood will be collected from the patient (depending of the size of their ulcer) in sterile 4.5-ml tubes containing 3.8% sodium citrate, which will bind to the calcium ions, preventing clot formation we will add 50 μl of CaCl2 per ml liquid plasma. The extraction of the PRP fraction by sticking with a syringe and the adding of CaCl2 should be performed under sterile conditions.

Treatment:

Drug: Platelet Rich Plasma

Osakidetza protocol

Active Comparator group

Description:

Patients in the control group will be treated following the recommendations of the Ezkerraldea-Enkarterri Health Region, that is, using a moist healing environment (as described in "Uso racional de los productos de cura en ambiente húmedo. Plan de formación continuada de Osakidetza", 2011). The type of material used to treat and dress the wound will be chosen after the assessment of the wound and surrounding skin, type and quantity of exudate and whether there are signs of infection. Wound care will be carried out every 48-72 hours, as is the current usual practice.

Treatment:

Device: Osakidetza protocol