Country for PR: United States
Contributor: PR Newswire New York
Friday, February 18 2022 - 12:14
AsiaNet
PolyActiva Announces Positive Phase IIa Trial Results in Low Dose Cohort for PA5108 Ocular Implant with Prezia(TM) Sustained Drug Delivery Technology
MELBOURNE, Australia, Feb. 18, 2022 /PRNewswire-AsiaNet/ --

- Primary and Secondary Efficacy Endpoints Met, Demonstrating Statistically

- Significant Reduction in Intra-Ocular Pressure (IOP) for Patients with 
Glaucoma

PolyActiva Pty Ltd ( 
https://c212.net/c/link/?t=0&l=en&o=3448237-1&h=1299399622&u=https%3A%2F%2Fpolyactiva.com%2F&a=PolyActiva+Pty+Ltd 
), a clinical-stage Australian biopharmaceutical company focused on developing 
unique biodegradable ocular implants with sustained drug delivery for patients 
suffering from ophthalmic diseases such as glaucoma, today announced that the 
Phase IIa study of its PA5108  Ocular Implant for the treatment of Primary 
Open-Angle Glaucoma (POAG) met both the study's primary and secondary efficacy 
endpoints of at least 20% IOP lowering in its low dose cohort. Results from the 
study were presented by Russell Tait, PhD, Chief Executive Officer of 
PolyActiva, at the 11th Annual Glaucoma 360 New Horizons Forum in San 
Francisco, CA. 

"The results of the low dose cohort demonstrate that the implant achieves a 
clinically meaningful IOP-lowering effect," commented Associate Professor 
Michael Coote, MD, a leading glaucoma specialist at Melbourne Eye Specialists 
and a principal investigator of the study. "The PA5108 Ocular Implant with 
Prezia Sustained Drug Delivery Technology may provide a significant advancement 
in the treatment of glaucoma with the laudable goal of enabling a constant dose 
of medication for six months via a safe and effective biodegradable implant."

The open-label, multicenter, Phase IIa study was designed to evaluate the 
minimum effective dose of the PA5108 Ocular Implant in patients with mild to 
moderate POAG across 3 dose cohorts (10 subjects per cohort). Primary and 
secondary efficacy endpoints include mean diurnal IOP at 12 and 26 weeks 
compared to baseline, and 8am IOP at 6, 18 and 21 weeks compared to baseline.

Topline Phase IIa trial results in low dose cohort: 

    --  Statistically significant IOP reduction vs. baseline of a >20% IOP-
        lowering effect (p<0.001 and P<0.01) across all assessment visits. 
    --  Statistically significant and clinically meaningful mean change in 
        diurnal IOP at 12 and 26 weeks (p<0.001). 
    --  Implant persistence through a minimum of 21 weeks with full implant 
        biodegradation by week 40, over a 4-6 week period. 
    --  Low dose implant shown to be generally well tolerated with no ocular 
        serious adverse events related to product, no endothelial cell loss and 
        no implant movement.

"When I offer treatment to my patients with glaucoma, I am looking for 
effective IOP lowering solutions that improve adherence to medical therapy. An 
implant that enables a repeat dose of treatment with a low-dose, constant daily 
drug release over the course of 20 weeks and is fully biodegradable while being 
well tolerated is highly desirable," stated Ike Ahmed, MD, FRCSC, 
ophthalmologist at the Prism Eye Institute in Ontario, Canada, Assistant 
Professor at the University of Toronto, and Clinical Professor at the 
University of Utah. "These data demonstrate that the PA5108 Ocular Implant with 
Prezia Technology holds the promise to deliver a target profile that allows me 
to better manage the progression of glaucoma for patients in my clinical 
practice."

"We are excited to announce these positive Phase IIa results as they point to 
the significant benefit the PA5108 Ocular Implant with Prezia Technology may 
provide to the ophthalmic community and patients suffering from the effects of 
glaucoma," stated Russell Tait. "We look forward to further exploring its 
beneficial clinical impact as we move to the next phase of our clinical 
program."

The PA5108 Ocular Implant employs the proprietary Prezia(TM) Sustained Drug 
Delivery Technology to release a constant daily dose of latanoprost free acid 
and is designed to include attributes not achievable by conventional blend 
technologies including: zero order drug release and rapid, complete, non-toxic 
biodegradation soon after the end of treatment. The Prezia Technology is 
versatile, can be used to deliver multiple drugs in a single implant and is 
suitable for front and back of the eye delivery.

About PolyActiva 

PolyActiva is an innovative clinical-stage ophthalmology company with a unique 
proprietary polymeric prodrug technology that enables site-specific, precise 
and controlled drug delivery to the eye. The company is dedicated to becoming a 
leader in ophthalmic medicine by providing unique biodegradable implants with 
sustained drug delivery to improve patient outcomes and quality of life.

PolyActiva has two products under development, the first is the Latanoprost FA 
SR Ocular Implant for which a Phase Ib/IIa clinical trial is underway after the 
successful completion of a Phase I clinical trials for the treatment of open 
angle glaucoma. The second product is a Levofloxacin SR Ocular Implant, an 
antibiotic-based ocular implant, being developed as a treatment to reduce the 
risk of infection after cataract surgery.  PolyActiva is based in Melbourne, 
Australia, and has secured venture capital funding from Brandon Capital's 
Medical Research Commercialisation Fund (MRCF) and Yuuwa Capital.
 
SOURCE: PolyActiva

CONTACT: Molly Traugott, molly@sprigconsulting.com, 781.664.0545; COMPANY 
CONTACT: Dr. Russell Tait, +61 3 9657 0700, russell.tait@polyactiva.com