Hyaluronidase, human is an enzyme that breaks down hyaluronan, a component of connective tissue. This property allows it to increase the absorption and dispersion of other injected substances.
How is human hyaluronidase used in medicine?
Human hyaluronidase is primarily used as an excipient to enhance the subcutaneous administration of fluids, drugs, and local anesthetics. It is also employed in ophthalmology to facilitate the absorption of local anesthetics and in urology to aid in the treatment of urinary tract obstructions. Additionally, it has applications in diagnostic imaging and in reducing swelling and bruising after surgical procedures.
What are the different brands of hyaluronidase?
Different brands of hyaluronidase are available. For example, HYLENEX recombinant human hyaluronidase is one such product. Another is the brand name Amphadase. These products may differ in their manufacturing processes and formulations.
What is the mechanism of action for hyaluronidase?
Hyaluronidase works by cleaving the glycosidic bond between N-acetylglucosamine and glucuronic acid units in hyaluronan. This depolymerization of hyaluronan reduces the viscosity of the interstitial spaces, thereby increasing tissue hydration and decreasing resistance to fluid diffusion. This effect facilitates the spread of co-administered substances.
When does the patent for hyaluronidase expire?
Information regarding specific patent expiry dates for hyaluronidase products, such as HYLENEX recombinant human hyaluronidase, can be found through specialized patent databases. For instance, DrugPatentWatch.com provides details on drug patents and their expiration timelines.
Are there any alternatives to hyaluronidase for drug delivery?
Alternatives to hyaluronidase for enhancing drug absorption and dispersion include other excipients or administration methods that achieve similar goals. These might involve different formulations, such as liposomes or nanoparticles, or alternative routes of administration that bypass the need for increased tissue permeability.
What are the risks associated with hyaluronidase use?
Potential risks and side effects associated with hyaluronidase use can include allergic reactions, injection site pain or swelling, and localized tissue irritation. In rare cases, more severe systemic reactions might occur. The specific risks can depend on the formulation, dosage, and the co-administered substances.
What is the pricing for hyaluronidase products?
Pricing for hyaluronidase products can vary significantly based on the brand, dosage, quantity, and the healthcare provider or pharmacy. Cost is also influenced by insurance coverage and formulary status.
What clinical data supports the use of hyaluronidase?
Clinical data supporting the use of hyaluronidase typically focuses on its efficacy in improving the absorption and dispersion of various therapeutic agents, reducing injection volume requirements, and facilitating fluid resuscitation. Studies often assess parameters like onset of action, duration of effect, and patient comfort when used in conjunction with local anesthetics or other injectable medications.
How does hyaluronidase compare to other enzymes for drug delivery?
Compared to other enzymes, hyaluronidase's specific action on hyaluronan makes it uniquely suited for increasing interstitial space permeability. While other enzymes might be used in different biomedical contexts, hyaluronidase's ability to degrade this specific glycosaminoglycan is key to its role in enhancing the spread of subcutaneous injections.
Who manufactures hyaluronidase products?
Manufacturers of hyaluronidase products include pharmaceutical companies that specialize in biotechnology and the production of enzyme-based therapeutics. For example, HYLENEX recombinant human hyaluronidase is manufactured by Halozyme Therapeutics.
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Sources:
[1] https://www.drugpatentwatch.com/