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NAGOYA, Japan, April 6, 2026 /PRNewswire/ -- Kowa Company, Ltd. (Headquarters: Nagoya, Aichi Prefecture, Japan), today announced an upcoming presentation of non-clinical data for K‑679, its novel antibody drug-loaded unimicelle conjugate (ADUC) with unprecedented drug loading
Presentation Details Presentation Title: Selective intratumoral distribution and post-T-DXd activity of K-679, an ultra-high-DAR EGFR-targeted antibody drug-loaded unimicelle conjugate (ADUC) Session Title: Antibody Technologies and Platforms 2 Presentation Date and Time: April 21, 2026, 9:00 a.m. – 12:00 p.m. CST (10:00 a.m. – 1:00 p.m. ET) Poster Number: 4396 Presenter: Hideo Yoshida
The abstract of the presentation is available at AACR Annual Meeting 2026 Itinerary Planner | Presentation
More information about the AACR Annual Meeting 2026 can be found on the event website at the following link: AACR Annual Meeting 2026 | Meetings | AACR
About K-679 K-679 is an Antibody Drug-loaded Unimicelle Conjugate (ADUC), a novel type of ADC using Kowa's proprietary micelle technology, currently in nonclinical development. The conjugate combines an anti-EGFR antibody with drug (DM1)-loaded unimicelles, which incorporate substantial quantities of payloads into a single-chain polymer. This innovative approach achieves an ultra-high DAR (Drug-to-Antibody Ratio) of approximately 45 DM1 molecules per antibody, significantly higher than conventional ADCs.
In non-clinical studies, K-679 has demonstrated tumor-selective pharmacokinetics, extensive intratumoral distribution, and concordant spatial pharmacodynamic effects in xenograft models, compared with a benchmark antibody-drug conjugate (ADC). K-679 also showed anti-tumor activity in colorectal patient-derived xenograft (PDX) models with low and heterogeneous epidermal growth factor receptor (EGFR) expression.
Media Contact: Ian Mehr Kowa Research Institute, Inc. 919-433-1600 Questo indirizzo email è protetto dagli spambots. È necessario abilitare JavaScript per vederlo.
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