NeuroSense Completes Safety Analysis of PrimeC in Alzheimer’s Phase 2 Trial

NRSN
December 23, 2025

NeuroSense Therapeutics Ltd. reported that the safety analysis of its lead candidate PrimeC in the Phase 2, randomized, double‑blind, placebo‑controlled NST‑AD‑001 study has been completed. The analysis included all randomized participants and found no serious adverse events and no new or unexpected safety signals, indicating a favorable tolerability profile for the fixed‑dose combination of ciprofloxacin and celecoxib.

The safety milestone is a critical de‑risking event that removes a regulatory hurdle and positions PrimeC for the next phase of clinical evaluation. PrimeC’s oral, multi‑target design and orphan drug status from the FDA and EMA give it a potential competitive edge in a market that still lacks disease‑modifying therapies. The company plans to combine the safety data with clinical observations and biomarker results to provide a comprehensive interpretation of the trial outcomes, with full results expected in the first quarter of 2026.

Alzheimer’s disease affects more than 30 million people worldwide, and the therapeutic market is projected to grow substantially as the population ages. Despite the presence of symptomatic treatments, the unmet need for disease‑modifying options remains large, creating a tailwind for innovative approaches such as PrimeC. The safety data therefore not only de‑risks the drug but also reinforces the company’s positioning in a high‑growth, high‑need segment.

NeuroSense’s financial profile remains challenging, with negative earnings and cash flow and recent private‑placement financing to support its pipeline. The safety announcement does not alter the company’s cash‑burn trajectory, but it provides a positive narrative that may help sustain investor interest amid ongoing capital needs.

PrimeC is also being advanced in a pivotal Phase 3 trial for amyotrophic lateral sclerosis (ALS), which began in November 2025. The dual‑disease strategy underscores the company’s broader pipeline and the potential for cross‑disease efficacy signals to accelerate development timelines.

The market reacted positively to the safety readout, with analysts noting the milestone as a key driver of the company’s short‑term momentum. The announcement was seen as a de‑risking event that could improve the company’s valuation prospects despite its current financial headwinds.

Looking ahead, NeuroSense will release the full efficacy and biomarker data in early 2026. The company’s next steps include preparing for a Phase 3 Alzheimer’s trial and continuing the ALS program, while managing its cash position through additional financing or partnership opportunities.

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