Two year results for aflibercept 8 mg from pivotal PHOTON trial demonstrates durable vision gains at extended dosing intervals in diabetic macular edema

During the trial, aflibercept 8 mg patients were initially randomized to either 12- or 16-week dosing intervals (after three initial monthly doses) and were able to shorten or extend dosing intervals if pre-specified criteria were met. The longer-term data among aflibercept 8 mg patients who completed the trial demonstrated that the vast majority of patients were able to maintain or further extend these dosing intervals through two years with: i. 89% maintaining ?12-week dosing intervals through two years, compared to 93% through one year (48 weeks). 83% maintaining ?16-week dosing intervals through two years, compared to 89% maintaining a 16-week dosing interval through one year. 43% meeting the criteria for ?20-week dosing intervals by week 96, including 16% and 27% who were eligible for 20- and 24-week dosing intervals, respectively.

“The two-year PHOTON results for aflibercept 8 mg in patients with diabetic macular edema are extremely compelling,” said Jeffrey Heier, M.D., Director of the Retina Service and Retina Research at Ophthalmic Consultants of Boston and a trial investigator. “To be able to rapidly achieve extended dosing intervals without any sacrifice of vision gains over two years is a tremendous benefit in the treatment of diabetic macular edema.”

PHOTON (N=658) is a double-masked, active-controlled pivotal trial evaluating non-inferiority of aflibercept 8 mg 12-week (n=328) and 16-week (n=163) dosing regimens after three initial monthly doses compared to an 8-week dosing regimen for Eylea (aflibercept) Injection (n=167) after five initial monthly doses. In addition to the vast majority of trial patients maintaining extended dosing intervals through two years, visual gains for aflibercept 8 mg remained consistent with the first year of the trial.

The two-year data from the pivotal PULSAR trial for aflibercept 8 mg in wet age-related macular degeneration are expected in the third quarter of 2023, and the two-year data from both PHOTON and PULSAR are planned for presentation at an upcoming medical meeting.