FDA Approves Xelpros (latanoprost ophthalmic emulsion) to Treat Open-angle Glaucoma or Ocular Hypertension

In continuation of my update on latanoprost

Sun Pharmaceutical Industries Ltd. and Sun Pharma Advanced Research Company Ltd. (SPARC) announced U.S. Food and Drug Administration (USFDA) approval for the New Drug Application (NDA) of Xelpros (latanoprost ophthalmic emulsion) 0.005% for the reduction of elevated intraocular pressure (IOP, or pressure inside the eye) in patients with open-angle glaucoma or ocular hypertension. This approval is from Sun Pharma’s Halol (Gujarat, India) facility.

Sun Pharma in-licensed Xelpros from SPARC in June 2015 and this approval will trigger a milestone payment to SPARC. SPARC is also eligible for milestone payments and royalties on commercialization of Xelpros in the US.

Xelpros is the first and only form of latanoprost that is not formulated with benzalkonium chloride (BAK), a preservative commonly used in topical ocular preparations. Xelpros is developed using SPARC’s proprietary Swollen Micelle Microemulsion (SMM) technology.

“As the only BAK-free version of latanoprost, Xelpros will be an important and alternative treatment option for individuals with open-angle glaucoma or ocular hypertension,” said Abhay Gandhi, CEO, North America, Sun Pharma. “This approval, coming less than one month following the approval of CEQUA™ (cyclosporine ophthalmic solution) 0.09%, reaffirms the strength of Sun Pharma’s fast-growing Ophthalmics division and its commitment to serving the needs of patients with ocular disorders.”

Anil Raghavan, CEO, SPARC said, “Approval of Xelpros by USFDA is a significant milestone for SPARC. It is also a validation of our SMM technology which helps to solubilize drugs that have limited or no solubility thus eliminating the need for benzalkonium chloride (BAK).”

In randomized, controlled clinical trials of patients with open-angle glaucoma or ocular hypertension with a mean baseline Intraocular pressure (IOP) of 23-26 mmHg, Xelpros lowered IOP by a mean of up to 6-8 mmHg.

Xelpros will be commercialized in the U.S. by Sun Ophthalmics, the branded ophthalmic division of Sun Pharmaceutical Industries Ltd.’s wholly owned subsidiary.

FDA Approves Vyzulta (latanoprostene bunod) Ophthalmic Solution for Open-Angle Glaucoma, Ocular Hypertension

Valeant Pharmaceuticals International, Inc.'s   announced that the U.S. Food and Drug Administration (FDA) has approved the New Drug Application (NDA) for Vyzulta (latanoprostene bunod ophthalmic solution, 0.024%). Vyzulta, the first prostaglandin analog with one of its metabolites being nitric oxide (NO), is indicated for the reduction of intraocular pressure (IOP) in patients with open-angle glaucoma or ocular hypertension.¹

"With today's approval of Vyzulta, our customers and their patients with glaucoma now have a new treatment option that can help provide consistent and sustained IOP lowering, the only modifiable risk factor that can help slow down the progression of the disease," said Joseph C. Papa, chairman and CEO, Valeant. "We expect to make this new advancement available for those who suffer with glaucoma before the end of the year."

Following topical administration, Vyzulta, a once daily monotherapy with a dual mechanism of action, works by metabolizing into two moieties, latanoprost acid, which primarily works within the uveoscleral pathway to increase aqueous humor outflow, and butanediol mononitrate, which releases NO to increase outflow through the trabecular meshwork and Schlemm's canal. The most common ocular adverse events include conjunctival hyperemia, eye irritation, eye pain and instillation site pain. Increased pigmentation of the iris and periorbital tissue and growth of eyelashes can occur. In glaucoma patients, damage to the trabecular meshwork, through which the majority of the aqueous humor passes, can lead to reduced drainage and as a result elevated IOP. Lowering IOP, even in patients with normal baseline levels, can delay, or even prevent damage to optic nerves, helping to reduce the risk of glaucomatous visual field loss.

"Vyzulta represents the first FDA-approved therapy developed through our proprietary NO-donating research platform," said Michele Garufi, chairman and CEO of Nicox. "We look forward to continuing to leverage our platform in the development of additional innovative ophthalmic compounds."

Preclinical studies have shown that NO plays a role in controlling IOP in normal eyes by increasing aqueous humor outflow through the trabecular meshwork and Schlemm's canal. Studies have also demonstrated that patients with glaucoma have reduced levels of NO signaling in their eyes, providing a rationale for the therapeutic value of NO-releasing molecules for patients with open-angle glaucoma or ocular hypertension.

"The safety and efficacy of Vyzulta has been well-established through multiple clinical studies, which have demonstrated positive results, including statistically significant differences in IOP lowering compared to timolol and latanoprost," said Robert N. Weinreb, M.D., chairman and distinguished professor of Ophthalmology and director, Hamilton Glaucoma Center at the University of California San Diego. "As one molecule with a dual mechanism of action, Vyzulta provides a new treatment option that works to reduce IOP by increasing the outflow through both the trabecular meshwork and the uveoscleral pathways."