title: Hylan G-F 20 single-injection formulation.
abstract: Hylan G-F 20, a cross-linked hyaluronic acid derivative, is an elastoviscous, high-molecular-weight (average 6000 kDa) fluid with rheological properties similar to those of knee synovial fluid of healthy young individuals. In a 26-week, randomized, double-blind, multicentre study in patients with symptomatic primary osteoarthritis of the knee (n = 253), one intra-articular injection of hylan G-F 20 (single-injection formulation) into the target knee significantly relieved pain (as measured by the Western Ontario and McMaster Universities Osteoarthritis Index pain [WOMAC A] subscale), including pain while walking on a flat surface (as assessed by the WOMAC A1 subscore), compared with placebo. Observer-reported disease status and patient-reported health status were also significantly improved in hylan G-F 20-treated patients compared with placebo-treated patients. A single intra-articular injection of hylan G-F 20 was generally well tolerated, with an adverse event profile similar to that of placebo. Repeat administration of hylan G-F 20 after 6 months had a similar tolerability profile to that of the initial injection. However, no patient who developed a target-knee adverse event after their first injection experienced such an event following their second injection.
authors.affiliation: Adis, a Wolters Kluwer Business, 41 Centorian Drive, Private Bag 65901, Mairangi Bay, North Shore 0754, Auckland, New Zealand. demail@adis.co.nz
authors.forename: James E
authors.initials: JE
authors.lastname: Frampton
mesh_terms: D002626:Chemistry, Pharmaceutical; D004311:Double-Blind Method; D006801:Humans; D006820:Hyaluronic Acid / Q000008:administration & dosage / Q000031:analogs & derivatives* / Q000627:therapeutic use; D007270:Injections, Intra-Articular / Q000379:methods*; D010146:Pain / Q000188:drug therapy*; D010147:Pain Measurement / Q000009:adverse effects / Q000379:methods
chemical_list: C049816:hylan; D006820:Hyaluronic Acid