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INTRODUCTION: ABvac40 is an investigational active immunotherapy (vaccine) targeting Abeta40. This study assessed the safety and immunogenicity of ABvac40 in patients with amnestic mild cognitive impairment or very mild Alzheimer's disease. METHODS: AB1601 was a multicenter, randomized, double-blind, placebo-controlled phase 2 study. Patients (n = 124) received five monthly injections plus a 10-month [...]

Bispecific antibodies (BsAbs) have emerged as a promising class of therapeutics to treat complex diseases, offering advantages in dual targeting simultaneously compared to monospecific antibodies. However, BsAbs often require advanced engineering, and the novel formats present challenges for the development of clinical anti-drug antibody (ADA) assays. Immunogenicity evaluation is a required study endpoint [...]

PTDSS1 (phosphatidylserine synthase 1) encodes an enzyme that facilitates production of phosphatidylserine (PS), which mediates a global immunosuppressive signal. Here, based on in vivo CRISPR screen, we identified PTDSS1 as a target to improve anti-PD-1 therapy. Depletion of Ptdss1 in tumor cells increased expression of interferon-gamma (IFN-gamma)-regulated genes, including B2m, Cxcl9, Cxcl10, and Stat1, even [...]

CAR-T-cells can drive MHC class-I-mediated CD8 + cytotoxic T-cell response towards CAR constructs in addition to an antibody response. Immune response may also develop towards residuals present in the CAR-T cell product such as AAV, CRISPR/CAS9, and expamers. Health authorities recommend developing assays to assess both humoral and cellular immunogenicity towards the CAR-T [...]