Drug Profile

KM 257

Alternative Names: KM-257; XZP-KM257

Latest Information Update: 28 Apr 2026

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At a glance

Originator Combio Pharmaceutical
Developer Xuanzhu Biopharmaceutical
Class Antineoplastics; Bispecific antibodies; Immunotherapies
Mechanism of Action Antibody-dependent cell cytotoxicity; T lymphocyte stimulants

Orphan Drug Status

Orphan designation is assigned by a regulatory body to encourage companies to develop drugs for rare diseases.

No
New Molecular Entity Yes

No development reported Bladder cancer; Breast cancer; Cholangiocarcinoma; Gastric cancer

28 Apr 2026 No recent reports of development identified for phase-I development in Bladder-cancer in China (Parenteral)
28 Apr 2026 No recent reports of development identified for phase-I development in Breast-cancer in China (Parenteral)
28 Apr 2026 No recent reports of development identified for phase-I development in Cholangiocarcinoma in China (Parenteral)

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