HS-20089 in Patients With Ovarian Cancer and Endometrial Cancer

Trial statusRecruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age18+
SponsorHansoh BioMedical R&D Company

About this trial

HS-20089 is an investigational antibody-drug conjugate (ADC) composed of a humanized IgG1 anti-B7-H4 monoclonal antibody conjugated to the topoisomerase I inhibitor payload via a protease-cleavable linker, with an average drug-to-antibody ratio of about 6.

This is a phase 2, open-label, multi-center study to evaluate the efficacy, safety, pharmacokinetics (PK) and immunogenicity of HS-20089 as monotherapy in patients with recurrent or metastatic ovarian cancer and endometrial cancer.

Eligibility criteria

Qualifiers

Males or females aged 18 years or older (≥18 years).

Patients diagnosed with recurrent or metastatic ovarian cancer, endometrial cancer or other solid tumors.

Subjects have at least one target lesion as assessed per the RECIST 1.1. Patients with only brain and/or bone lesions as target lesions are ineligible.

Tumor tissue from a newly obtained biopsy (FFPE tumor tissue blocks or slides are acceptable) is required. If the newly obtained biopsy is not feasible, newly obtained FFPE slides cut from archival tumor tissue blocks within 2 years prior to the first dose of study drug are acceptable.

Disqualifiers

B7-H4-targeted therapies.

Have received any of cytotoxic chemotherapy drugs, investigational drugs, anti-tumor traditional Chinese medicines or other anti-tumor drugs (including endocrine therapy, molecular targeted therapy, biotherapy, etc.) within 14 days prior to the first dose of study drug; or need to continue these drugs during the study.

Have received macromolecular antitumor drugs (including immunotherapy, such as monoclonal antibodies and bispecific antibodies) within 28 days prior to the first dose of study drug.

Have received locoregional radiation therapy within 2 weeks prior to the first dose of study drug; more than 30% of bone marrow irradiation or wide-field radiation therapy within 4 weeks prior to the first dose of study treatment.

Trial design

Treatments tested in this trial

  • HS-20089

Treatment groups

460 Participants
are divided into 6 treatment groups

6

Treatment groups

See each treatment group below.

Sponsors and collaborators