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Chiome Bioscience Inc.

Japanese biotech company in Shibuya, Tokyo, developing antibody drug pipelines including first-in-class oncology candidates.

Last updated September 15, 2026

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Overview

Chiome Bioscience Inc. (株式会社カイオム・バイオサイエンス) is a company based in Shibuya City, Japan, whose stated aim is to bring the light of drug discovery to unmet medical needs. Its headquarters and research laboratories are located in Shibuya-ku, Tokyo, with a drug discovery laboratory at the Teikyo University Biotechnology Research Center in Kawasaki, Kanagawa. The company presents a pipeline of antibody-based programs, including in-house developed products and licensing candidates, spanning oncology and other therapeutic areas.

History

Chiome Bioscience Inc. is a company located in Shibuya City, Japan. Its headquarters and research laboratories are listed at Sumitomo Fudosan Nishi-shinjuku Bldg. No.6, 3-12-1 Honmachi, Shibuya-ku, Tokyo, and it also lists a drug discovery laboratory at the Teikyo University Biotechnology Research Center in Miyamae-ku, Kawasaki, Kanagawa. The company states that it aims to bring the light of drug discovery to unmet medical needs and describes a governance framework as a company with an audit and supervisory committee. Its disclosed pipeline includes in-house developed products such as CBA-1205 (ADCC enhanced) and CBA-1535 (Tribody™), both in Phase 1 for oncology, as well as outsourced clinical studies such as ADCT-701 (LIV-1205 ADC) targeting DLK-1 in oncology, and licensing candidates and drug discovery projects.

Products and positioning

  • CBA-1205 (ADCC enhanced)

    In-house developed product targeting DLK-1 in oncology, listed as in Phase 1.

  • CBA-1535 (Tribody™)

    In-house developed product targeting 5T4×CD3 in oncology, listed as in Phase 1.

  • ADCT-701 (LIV-1205 ADC)

    Outsourced clinical study targeting DLK-1 in oncology (ADC), with the National Cancer Institute as partner.

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