Eladur (Neuropathic Pain) - Forecast and Market Analysis to 2022
Neuropathic pain (NP) is defined as a disorder of the sensorimotor system and is distinctly different from nociceptive pain, which is a consequence of trauma, injury, or inflammation. The main difference between neuropathic and nociceptive pain is the absence of a continuous nociceptive input in neuropathic pain. Although the term neuropathic pain is used to describe a wide range of pain syndromes with varying etiologies, this report focuses on 3 distinct forms of NP: Painful diabetic neuropathy, Postherpetic neuralgia and trigeminal neuralgia. The main classes of drugs used to treat these three neuropathic pain indications include anticonvulsants, antidepressants, opioids and topical treatments. However, despite the availability of multiple pain medications only 50% of patients respond to any given drug and there are numerous the side effects associated particularly with systemically administered drugs, that reduce their tolerability.
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New treatments will target some key unmet needs in terms of efficacy and tolerability, but opportunities will remain for drugs that can more reliably eradicated NP in targeted patient populations, as well as offering an improved safety profile.
Eladur is a transdermal bupivacaine patch developed by Durect Corporation that is intended to deliver bupivacaine for up to three days from a single application. Durect had been engaged in a licensing agreement with Pfizer (through its subsidiary, King Pharmaceuticals) to develop and commercialize Eladur, but in February 2012, Pfizer notified Durect that it was terminating this agreement and returned all the rights to Durect. In January 2014, Durect established another development and commercialization agreement for Eladur, this time with Impax Laboratories....