• ACI-19764 is an orally available inhibitor of the NLRP3 inflammasome
• Preliminary data showed ACI-19764 was safe and well tolerated across single and multiple ascending dose cohorts with confirmed CSF penetration
• Based on PK data the therapeutic dose is expected to be ≤10mg once daily
• To rapidly evaluate the anti-inflammatory activity of ACI-19764 (effect on hsCRP), dosing of a cardiovascular risk cohort is now underway with initial results expected by year end
• Full results from the Phase 1/1b trial are expected in H1 2027
• Ongoing Phase 2 VacSYn study to expand to sites in USA with Investigational New Drug (IND) clearance
• Recent positive interim results showed safety and immunogenicity with early signals of activity
• Full week-100 results from Part 1 of VacSYn trial expected in H2 2026
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today announces three presentations at the Alzheimer’s Association International Conference® 2026, taking place July 12-15 in London, UK.
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today announced interim data from the first three cohorts (AD1, AD2 & AD3) of 74 patients with prodromal Alzheimer’s disease (AD) in the Phase 1b/2 ABATE trial following 12 months of treatment with ACI-24 anti-amyloid beta (Abeta) active immunotherapy.
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today announced it will receive a research grant of $4 million from The Vijay and Marie Goradia Charitable Foundation. The grant will support extending Part 1 of the ongoing Phase 2 VacSYn trial of ACI-7104, AC Immune’s anti-alpha-synuclein (a-syn) active immunotherapy, in early Parkinson’s disease (PD).
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today announced the presentation of new preliminary data from a Phase 1 trial of its first-in-class TDP-43 positron emission tomography (PET) tracer ACI-19626 showing increased uptake in the brains of patients with amyotrophic lateral sclerosis (ALS).
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today announces that Dr Andrea Pfeifer has decided to retire from her role as Chief Executive Officer (CEO) of AC Immune at the upcoming Annual General Meeting (AGM) to spend more time with her family.
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today provided financial and corporate updates for the quarter ended March 31, 2026.
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today announced it dosed the first patients in Cohort AD4 in the ongoing Phase 1b/2 ABATE trial. As a result, AC Immune will receive a $12 million milestone payment from Takeda under the partners’ exclusive, worldwide option and license agreement for AC Immune’s active immunotherapies targeting toxic forms of amyloid beta (Abeta), including ACI-24 for the treatment of Alzheimer’s disease (AD).
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today announced an agreement with Eli Lilly and Company (Lilly) to amend their 2018 license and collaboration agreement to research and develop Tau aggregation inhibitor small molecules for the potential treatment of Alzheimer’s disease (AD) and other neurodegenerative diseases. The amendment continues the research and collaboration to cover development of new lead Tau Morphomer® candidates and potential back-up compounds.
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today announced the presentation of Phase 1 data including the first in vivo images of TDP-43 pathology in the human brain, detected using its first-in-class positron emission tomography (PET) tracer ACI-19626, at the International Conference on Alzheimer’s and Parkinson’s Disease (AD/PD™ 2026).
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today reported results for the full year ended December 31, 2025, and provided a corporate update.
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today announced it will host an industry symposium on how a precision prevention approach to Parkinson’s disease may now be within reach, based on lessons from Alzheimer’s disease.
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today announced that the first participant has been dosed in a Phase 1 clinical trial of ACI-19764, an orally administered small molecule inhibitor of the NLRP3 inflammasome.
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today announced positive interim safety and efficacy results from the Phase 2 VacSYn trial of its wholly-owned anti-alpha-synuclein (a-syn) active immunotherapy ACI-7104.056 in early Parkinson’s disease (PD).
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today announced that Company Management will participate in a fireside chat and one-on-one investor meetings during the Jefferies Global Healthcare Conference in London, taking place November 17-20, 2025.
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today reported results for the quarter ended September 30, 2025, and provided a corporate update.
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today announced the appointment of Prof. Catherine Mummery, a deeply experienced neurologist and expert in dementia clinical trials, as Chairwoman of its Clinical Advisory Board (CAB).
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today announced the publication in Nature Communications of preclinical data on its first-in-class brain positron emission tomography (PET) tracers for imaging TDP-43 pathology. The selected candidate, ACI-19626, potentially enables a precision medicine approach to multiple neurodegenerative diseases that are currently difficult to diagnose and differentiate from each other.
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today announced the peer-reviewed publication in eBioMedicine of results from the completed Phase 1b/2a trial of active immunotherapy ACI-35.030’s (JNJ-2056) partnered with Janssen Pharmaceuticals, Inc., a Johnson & Johnson company. ACI-35.030 generated a rapid, robust and durable polyclonal response against pathological forms of Tau including phosphorylated Tau (pTau) and brain-derived Tau (enriched paired helical filament, ePHF). There were no clinically relevant safety or tolerability observations for either ACI-35.030 or JACI-35.054.
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today announces that following a strategic review by executive management, the Company is sharpening its focused investment on its most important assets. These include its three clinical-stage active immunotherapy programs, two of which are in ongoing pharma collaborations, and its most promising small molecule programs targeting NLRP3 and Tau. As a result, the Company will reduce its workforce by around 30% and extend its cash for operations to the end of Q3 2027.
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today reported results for the quarter ended June 30, 2025, and provided a corporate update.
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today reported results for the quarter ended March 31, 2025, and provided a corporate update.
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today announced additional interim safety and positive immunogenicity data from the Phase 2 VacSYn clinical trial evaluating ACI-7104.056, its wholly owned anti-alpha-synuclein (a-syn) active immunotherapy candidate, for the treatment of patients with early Parkinson’s disease (PD).
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today announced upcoming presentations highlighting its precision medicine pipeline at the International Conference on Alzheimer’s and Parkinson’s Diseases (AD/PD™ 2025) taking place in Vienna, Austria, on April 1 – 5, 2025. AC Immune will host an industry symposium highlighting advances in the clinical development of active immunotherapies featuring key opinion leaders, industry experts and AC Immune leadership.
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today reported results for the full year ended December 31, 2024, and provided a corporate update.
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision medicine for neurodegenerative diseases, today announced that the company’s management will participate in the following investor conferences in March:
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today announced interim safety and tolerability data from the ABATE Phase 1b/2 trial of ACI-24.060 in individuals living with Down syndrome (DS). Targeting toxic forms of amyloid beta (Abeta), ACI-24.060 is an active immunotherapy covering Abeta 1-15 (excluding Abeta T-cell epitopes). The interim analysis was based on data from the first two cohorts of individuals with DS receiving low-dose and mid-dose ACI-24.060. DS subjects in the interim analysis have been treated for up to one year, with no serious adverse events related to the study drug and no case of amyloid-related imaging abnormalities (ARIA) observed in this study population.
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today announced positive interim safety and immunogenicity data from the Phase 2 VacSYn clinical trial evaluating ACI-7104.056, its wholly owned anti-alpha-synuclein (a-syn) active immunotherapy candidate, for the treatment of patients with early Parkinson’s disease (PD).
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision medicine for neurodegenerative diseases, today announced that Company Management will participate in a fireside chat and one-on-one investor meetings during the Jefferies 2024 London Healthcare Conference, taking place in-person in London on November 19-21, 2024.
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today reported results for the quarter ended September 30, 2024, and provided a corporate update.
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today announced that it will receive the second ReTain-related milestone payment (CHF 24.6 million) under its agreement with Janssen Pharmaceuticals, Inc. (Janssen), a Johnson & Johnson company.
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today announced that its partner Life Molecular Imaging (LMI) has received Fast Track Designation for the Tau positron emission tomography (PET) diagnostic, [18F]PI-2620, from the U.S. Food and Drug Administration (FDA) in three neurodegenerative conditions.
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision therapeutics for neurodegenerative diseases, today reported results for the quarter ended June 30, 2024, and provided a corporate update.
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision medicine for neurodegenerative diseases, today unveiled a novel class of neurodegenerative disease-fighting drug-candidates called morADC (Morphomer® Antibody Drug Conjugate) in an oral presentation at the annual Alzheimer’s Association International Conference (AAIC 2024), taking place from July 28 – August 1, 2024, in Philadelphia, PA.
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision medicine for neurodegenerative diseases, today announced that its active-immunotherapy candidate, ACI-35.030 (now called JNJ-2056), targeting the pathologic form of the Tau protein, phosphorylated Tau (pTau), has received Fast Track designation from the U.S. Food and Drug Administration (FDA). The recently initiated Phase 2b clinical trial ReTain is currently recruiting participants with preclinical Alzheimer’s disease, where individuals have yet to show clinical symptoms.
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision medicine for neurodegenerative diseases, today announced three oral presentations highlighting its precision medicine pipeline at the annual Alzheimer’s Association International Conference (AAIC 2024), taking place in Philadelphia, PA, on July 28 – August 1, 2024.
AC Immune SA, a clinical-stage biopharmaceutical company pioneering the development of precision medicine approaches for the diagnosis, treatment, and prevention of neurodegenerative diseases, today announced that Company Management will participate in a fireside chat and one-on-one investor meetings during the Jefferies 2024 Global Healthcare Conference, taking place in-person in New York on June 5-6, 2024.
AC Immune SA, a clinical-stage biopharmaceutical company pioneering the development of precision medicine approaches for the diagnosis, treatment, and prevention of neurodegenerative diseases, today reported results for the quarter ended March 31, 2024, and provided a corporate update.
Takeda and AC Immune SA today announced an exclusive, worldwide option and license agreement for AC Immune’s active immunotherapies targeting toxic forms of amyloid beta (Abeta), including ACI-24.060 for the treatment of Alzheimer’s disease.
AC Immune SA, a clinical-stage biopharmaceutical company pioneering the development of precision medicine approaches for the diagnosis, treatment, and prevention of neurodegenerative diseases, today reported results for the year ended December 31, 2023, and provided a corporate update.
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision medicine for neurodegenerative diseases, today announced upcoming presentations highlighting its precision medicine pipeline at the International Conference on Alzheimer’s and Parkinson’s Diseases (AD/PD™ 2024), taking place in Lisbon, Portugal March 5-9, 2024. In addition, Andrea Pfeifer, Ph.D., CEO of AC Immune SA will lead an industry symposium exploring the latest clinical advances in the diagnosis and treatment of alpha-synuclein pathologies.
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision medicine for neurodegenerative diseases, today announced that the Company will regain all global rights to the anti-amyloid beta antibody crenezumab and the anti-Tau antibody semorinemab following termination of the collaboration agreements with Genentech, a member of the Roche Group, and Roche. Both antibodies have been evaluated in clinical studies for Alzheimer’s disease (AD). AC Immune will also regain rights to existing GMP drug-product for clinical testing as well as associated data generated under each of the agreements. AC Immune will carefully review and evaluate available data sets, including the final open label extension results from the Lauriet trial when they become available and are received in full by AC Immune, before decisions are made on potential further development and other opportunities.
AC Immune SA, a clinical-stage biopharmaceutical company pioneering precision medicine for neurodegenerative diseases, today provided an update on positive progress in its active immunotherapy programs, with three Phase 2 trials progressing to key clinical milestones in 2024.
