Ocuphire Pharma Announces Publication of Full Phase 3 Results of Phentolamine Ophthalmic Solution 0.75% for Pharmacologically-Induced Mydriasis in Ophthalmology

Ocuphire Pharma
Ocuphire Pharma

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Published data from two Phase 3 clinical trials demonstrated rapid reversal of pharmacologically-induced mydriasis with favorable safety profile

FARMINGTON HILLS, Mich., Sept. 30, 2024 (GLOBE NEWSWIRE) -- Ocuphire Pharma, Inc. (Nasdaq: OCUP), a clinical-stage ophthalmic biopharmaceutical company focused on developing and commercializing small molecule therapies for the treatment of patients with retinal and refractive eye disorders, today announced the publication of full results from two pivotal Phase 3 clinical trials (MIRA-2 and MIRA-3) that evaluated the safety and efficacy of RYZUMVI? (Phentolamine Ophthalmic Solution 0.75%) for the treatment of pharmacologically-induced mydriasis in the peer-reviewed journal Ophthalmology. The results demonstrated that Phentolamine Ophthalmic Solution 0.75%, a non-selective alpha-1 and alpha-2 adrenergic antagonist, rapidly and effectively reversed pharmacologically-induced pupil dilation with a favorable safety profile.

As previously reported by Ocuphire, in both trials a statistically significant greater percentage of subjects treated with Phentolamine Ophthalmic Solution 0.75% achieved reversal of pharmacologically-induced mydriasis at 90 minutes compared to those receiving placebo, which was the primary endpoint. In the MIRA-2 trial, 48.9% of subjects treated with Phentolamine Ophthalmic Solution 0.75% achieved reversal versus 6.6% in the placebo group (p<0.0001). In the MIRA-3 trial, 58% of subjects treated with Phentolamine Ophthalmic Solution 0.75% achieved the primary endpoint versus 6% in the placebo group (p<0.0001). Effects were observed as early as 60 minutes following administration, with significant improvements in pupil diameter at that timepoint and at every timepoint measured up to 24 hours following administration in both trials. More subjects receiving Phentolamine Ophthalmic Solution 0.75% reported a perceived benefit in the resolution of visual symptoms caused by pharmacologically-induced mydriasis compared to placebo, with statistically significant differences noted as early as one hour following administration.

Fewer subjects treated with Phentolamine Ophthalmic Solution 0.75% (8-11%) had residual dilation at 24 hours post-dilation, compared to placebo-treated subjects (28-34%) (p<0.0001). Phentolamine Ophthalmic Solution 0.75% exhibited a favorable safety profile, with the most common treatment-emergent adverse events being mild and transient, including conjunctival hyperemia (11.2%), instillation site discomfort (10.9%) and dysgeusia (3.6%).