Safety of Use and Efficacy of Pandora for Patients Suffering From Gonarthrosis (PANDORA2)

The knee osteoarthritis is a frequent degenerative condition that mainly affects subjects over 60, population often weakened by numerous comorbidities and concomitant treatments, justifying the development of new therapies. The viscosupplementation is a symptomatic treatment for knee osteoarthritis ; the objective of this intra-articular injection of hyaluronic acid is to reduce knee pain and improve mobility. In practice, there are two protocols to administer viscosupplementation : in a single injection or in three injections performed weekly. The present clinical investigation has the objective to evaluate the safety and efficacy of use of Pandora, a hyaluronic acid associated with tranexamic acid, in a single injection (HO-1) or in three injections performed weekly (HS-3), compared to a referred and commercialized medical device.