Positive results from the Phase Ib clinical study of NeuroRestore ACD856, under development for Alzheimer’s

AlzeCure Pharma AB (publ) (FN STO: ALZCUR), a biotech company that develops candidate drugs for diseases affecting the nervous system, focusing on Alzheimer's disease and pain, today announced that the Phase Ib clinical study of ACD856, the lead drug candidate in the NeuroRestore platform being developed for Alzheimer's disease and other indications, has been completed on schedule with positive results.

”Consistent with previous clinical data, the results show that ACD856 was well-tolerated and no substance-related safety findings were observed. Furthermore, an expected increase in the concentration of ACD856 was seen in both blood and cerebrospinal fluid. These data further strengthen the continued development of ACD856, broaden the therapeutic window, and provide a solid foundation for dose selection in future clinical studies,” said Märta Segerdahl, CMO at AlzeCure Pharma.

The Phase Ib clinical study aimed to evaluate the safety and tolerability of ACD856 following repeated administration of higher doses than previously studied, as well as to measure the substance's concentration in the body. This could broaden the opportunities for ACD856, including in depression.

AlzeCure has previously obtained key clinical data showing that ACD856 crosses into the brain at relevant concentrations and activates neural pathways important for both cognition and depression. This supports the ongoing development program for the drug candidate as an oral treatment for Alzheimer's disease and other indications.

Preclinical studies have previously shown that AlzeCure’s drug candidates in the NeuroRestore platform strengthen communication between nerve cells and improve cognitive function, including learning and memory. Previous preclinical results from AlzeCure also demonstrate neuroprotective, anti-inflammatory, and disease-modifying effects in various models with these so-called Trk-PAM substances, which enhance BDNF and NGF signaling.

Furthermore, NeuroRestore’s unique pharmacological mechanism enables its use across several different indications, such as Alzheimer's and Parkinson's disease, as well as depression. ACD856 is a first-in-class drug candidate for Alzheimer's disease and is currently being prepared for upcoming Phase II clinical studies in patients; it was also awarded a major EU grant from the European Innovation Council (EIC) in 2025. This study is expected to start in 2026.

“The fact that the study progressed according to plan is excellent news, and we see that a wide therapeutic window further strengthens our commercial opportunities for this promising compound, including in other areas with very high unmet medical needs, such as depression," said Martin Jönsson, CEO of AlzeCure Pharma.