Differences among Branded Hyaluronic Acids in Italy, Part 1: Data from In Vitro and Animal Studies and Instructions...

Area of Science:

• Biomedical science
• Pharmacology
• Rheumatology

Background:

• Intra-articular (IA) hyaluronic acid (HA) injections are a common treatment for osteoarthritis globally.
• The efficacy and supporting evidence for IA HA products marketed in Italy require thorough investigation.

Purpose of the Study:

• To identify scientific evidence from in vitro and in vivo studies for IA HA products available in Italy.
• To assess the accuracy of product leaflet indications and contraindications against scientific evidence.

Main Methods:

• Conducted an extensive literature search for in vitro and in vivo studies on IA HA products marketed in Italy.
• Extracted and analyzed data from product leaflets and compared it with scientific evidence.

Main Results:

• Reviewed nine in vitro and eleven in vivo animal model studies.
• Found limited scientific evidence supporting the efficacy of many branded IA HA products (12.82% in vitro, 17.95% in vivo).
• Observed that many product leaflets contain indications and contraindications not supported by scientific data.

Conclusions:

• Scientific data for IA HA products marketed in Italy is scarce and often lacks brand-specific validation.
• Product leaflets frequently present unsubstantiated claims regarding indications and contraindications.
• There is a need for robust, brand-specific studies to guide clinicians in selecting appropriate IA HA therapies.