Health

Lighthouse Pharmaceuticals Secures $49.2 Million Grant to Propel Alzheimer's Study with LHP588

2025-08-22

Author: Rajesh

In a groundbreaking development, Lighthouse Pharmaceuticals has announced a massive $49.2 million grant from the National Institute on Aging (NIA), a part of the National Institutes of Health (NIH). This significant funding is aimed at advancing the Phase 2 clinical trial of LHP588, a promising treatment for patients plagued by Alzheimer's disease and infections caused by Porphyromonas gingivalis.

Casey Lynch, CEO of Lighthouse Pharma, expressed excitement over the funding, calling it "a powerful validation" of the emerging connections between P. gingivalis and Alzheimer’s disease. "This allows us to lead a pioneering trial to target a known microbial contributor to neuroinflammation and neurodegeneration."

Why is LHP588 Crucial?

LHP588 operates as an orally administered, brain-penetrant inhibitor of lysine-gingipain, a notorious virulence factor of P. gingivalis. By blocking this bacterial enzyme, LHP588 aims to diminish the toxic effects of the bacteria. Previous studies have already demonstrated promising results—mild-to-moderate Alzheimer’s patients showed substantial reductions in cognitive decline when treated with Kgp inhibitors, particularly among those with detectable levels of P. gingivalis in saliva.

The upcoming Phase 2 Spring trial will assess the safety and effectiveness of both high and low doses of LHP588 compared to a placebo. This double-blind, placebo-controlled study will involve 300 patients diagnosed with mild to moderate Alzheimer’s and confirmed infections of Porphyromonas gingivalis.

A Targeted Approach to Alzheimer's