Neopharmed Gentili SpA

Hemorrhoidal disease (HD) is the most common proctological disease with a prevalence rate that can reach approximately 4.4% of the population, with a particular peak in individuals aged between 45 and 65 years. The most common presentation of HD is painless rectal bleeding occurring during or immediately after defecation. Pain is rare in case of uncomplicated HD and may be present in case of external hemorrhoidal thrombosis.
The decision-making to treat Hemorrhoidal thrombosis usually depends on the timing of the onset of symptoms, with the surgical treatment favored if the onset of symptoms occurs within 72 hours.
Mesoglycan, a natural preparation of glycosaminoglycans (GAGs), is a polysaccharide complex rich in sulfur radicals.
It is composed of heparan sulphate (47.5%), dermatan sulphate (35.5%), chondroitin sulfate (8.5%) and slow heparin (8.5%).
Mesoglycan exerts antithrombotic activity (activation of antithrombin III and heparin cofactor II) and profibrinolytic (stimulation of the activator tissue plasminogen) decreasing plasma concentrations of fibrinogen without affecting the prothrombin time, the time of partial thromboplastin or the remaining coagulation parameters. The rationale of this double-blind randomized controlled clinical trial is to confirm/evaluate the efficacy and safety of mesoglycan versus placebo in reducing the symptoms of hemorrhoidal disease and their impact on quality of life.

The objective of the study is to demonstrate the superiority of the mesoglycan (Prisma®), compared to placebo, in reducing the incidence of thromboembolic complications (relapse / extension of superficial venous thrombosis (SVT), deep venous thrombosis (DVT), pulmonary embolism (PE)) in patients who have completed the cycle of therapy of the acute phase after superficial vein thrombosis.