AC Immune SA plans talks with regulators based on positive interim safety and efficacy results from the phase II Vacsyn trial of its wholly owned anti-alpha-synuclein (a-syn) active immunotherapy ACI-7104.056 in early Parkinson’s disease (PD). The firm said that for the first time, data support targeting a-syn pathology via such a strategy. Disease-related biomarker results that suggest PD slowing include a-syn cerebrospinal fluid (CSF) levels and neurofilament light (NfL).

Monoclonal antibodies show strong therapeutic potential against neurodegenerative diseases, but a major challenge is ensuring that they can arrive unharmed in the brain at sufficient concentrations. One way around this challenge is to vectorize the monoclonal antibody: encode it within a vector that can infect target cells in the brain and express the antibody in situ.

Researchers from AC Immune SA recently presented the discovery of ACI-21018, a novel α-synuclein aggregation inhibitor developed using AC Immune’s proprietary Morphomer platform.

The current treatment strategies for neurodegenerative diseases focus on targeting Aβ in Alzheimer’s disease (AD), α-synuclein aggregates in Parkinson’s disease (PD) and anti-tau therapies, which are primarily used in AD but are also being explored for PD. At the 2025 International Conference of Alzheimer’s & Parkinson’s Disease and Related Neurological Disorders, Aditya Iyer, senior RD scientist from Amyl Therapeutics Srl, presented data on an option which could potentially serve as a pan-amyloid therapeutic.

The current treatment strategies for neurodegenerative diseases focus on targeting Aβ in Alzheimer’s disease (AD), α-synuclein aggregates in Parkinson’s disease (PD) and anti-tau therapies, which are primarily used in AD but are also being explored for PD. At the 2025 International Conference of Alzheimer’s & Parkinson’s Disease and Related Neurological Disorders, Aditya Iyer, senior RD scientist from Amyl Therapeutics Srl, presented data on an option which could potentially serve as a pan-amyloid therapeutic.

A new collaboration with Dren Bio Inc. means Novartis Pharma AG has negotiated two of the biggest deals of 2024, with its parent company Novartis AG signing a third. Privately held Dren is getting $150 million up front and the chance to ultimately bring in $2.85 billion. The $150 million up-front payment includes a $25 million equity investment.

AC Immune SA has landed a potential $2.2 billion deal for its anti-amyloid beta Alzheimer’s disease vaccine, ACI-24.060, with Takeda Pharmaceutical Co. Ltd., under which it will get $100 million up front and is eligible to receive an option exercise fee, plus potential development, commercial and sales-based milestones of up to $2.1 billion.