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临床试验/NCT07774624
NCT07774624尚未招募1 期

A Phase I/II Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Efficacy of SKB103 in Participants With Locally Advanced, Recurrent, or Metastatic HER2-negative Breast Cancer.

Sichuan Kelun-Biotech Biopharmaceutical Co., Ltd.0 个研究点目标入组 140 人开始时间: 2026年8月31日最近更新:
适应症
相关药物

试验速览

阶段
1 期
状态
尚未招募
入组人数
140
主要终点
Number of subjects achieving Dose-limiting toxicity (DLT)

研究概览

简要总结

This is a Phase I/II clinical study to evaluate the safety and efficacy of SKB103 in participants with advanced (locally advanced, recurrent, or metastatic) HER2-negative breast cancer. The study includes a Phase 1 dose escalation stage and a Phase 2 indication expansion stage.

详细描述

This is a multi-center, open-label, phase I/II clinical study to evaluate the safety, tolerability, pharmacokinetics (PK), immunogenicity, and efficacy of SKB103 in participants with locally advanced, recurrent or metastatic HER2-negative breast cancer.

The study includes a Phase 1 dose escalation stage and a Phase 2 indication expansion stage.

研究设计

研究类型
Interventional
分配方式
Na
干预模型
Single Group
主要目的
Treatment
盲法
None

入排标准

年龄范围
18 Years 至 75 Years(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Willingness to participate in the study, sign the informed consent form(ICF), and comply with the protocol-specified visits and relevant procedures.
  • Aged ≥ 18 and ≤ 75 years at the time of signing ICF.
  • Histologically and/or cytologically confirmed HER2-negative Breast cancer who have failed standard therapy.
  • Participants should provide tumor tissue samples for biomarker testing as much as possible.
  • At least one measurable lesion per RECIST v1.
  • Eastern Cooperative Oncology Group (ECOG) score is 0 or
  • Life expectancy ≥ 12 weeks.
  • Acceptable bone marrow and organ function.
  • Male and female participants must agree to use highly effective contraceptive methods during the study period.

排除标准

  • Participants with known meningeal metastases, brainstem metastases, spinal cord metastases and/or compression, and active central nervous system (CNS) metastases.
  • Participants with other malignant tumors within 3 years prior to the first administration.
  • Presence of any serious cardiovascular and cerebrovascular diseases or cardiovascular and cerebrovascular risk factors.
  • Presence of any uncontrolled systemic disease, as judged by the investigator.
  • Presence of pleural effusion, pericardial effusion, or ascites with clinical symptoms or requiring repeated drainage.
  • History of interstitial lung disease or noninfectious pneumonitis.
  • Other lung diseases that may interfere with drug-related pulmonary toxicity or may cause clinically serious lung injuries.
  • Documented severe dry eye syndrome, severe meibomian gland disease and/or blepharitis, or history of corneal disorders that prevent/delay corneal healing.
  • Presence of risk of developing esophagotracheal fistula or esophageal pleural fistula, or tumor invasion or compression of surrounding vital organs and major blood vessels with related clinical symptoms.
  • Clinical symptoms of intestinal obstruction, gastrointestinal perforation or fistula, urethral fistula, and abdominal abscess within 3 months prior to the first administration.
  • Toxicities from prior anti-tumor therapy not recovering to ≤ Grade
  • Has experienced immune-related adverse events (irAE) of Grade 3 or higher during prior immunotherapy
  • Serious infection occurred within 4 weeks prior to the first administration.
  • Active hepatitis B or hepatitis C.
  • Positive result of human immunodeficiency virus (HIV) test or history of acquired immunodeficiency syndrome (AIDS); Known active syphilis infection.
  • Known active pulmonary tuberculosis.
  • Known history of allogeneic organ transplantation or hematopoietic stem cell transplantation.
  • History of allergies to any component of SKB103 injection, or severe hypersensitivity reaction to other monoclonal antibodies.
  • Has received prior antibody or drug therapy targeting T-cell co-stimulatory or checkpoint pathways, or cell therapy.
  • Received chemotherapy, immunotherapy, biological therapy, or other large molecule anti-tumor drugs within 4 weeks prior to the first administration.
  • Has received radiation therapy to lung lesions with a total dose >30 Gy within 6 months prior to the first dose of study drug.
  • Participants who received major surgeries 4 weeks prior to the first administration.
  • Participants who received other investigational drugs within 4 weeks prior to their first administration.
  • Participants who have previously received anti-tumor vaccines or have received any live vaccines within 4 weeks prior to the first administration or scheduled to receive live vaccines during study treatment.
  • Receipt of systemic corticosteroid therapy (>10mg of prednisone or its equivalent) or other immunosuppressive agents within 2 weeks prior to the first dose.
  • Receipt of strong inhibitors or inducer of cytochrome P450(CYP3A4) or inhibitors of breast cancer resistance protein (BCRP) within 2 weeks prior to the first administration or within 5 half-lives of the known drugs(whichever is longer).
  • Pregnant or lactating women.
  • Known history of psychiatric disorder or substance abuse that may interfere with study compliance.
  • Has any local or systemic condition (non malignant or tumor related) that may impair protocol compliance.
  • Any condition that, in the opinion of the Investigator, may interfere with the evaluation of the study drug, participant safety, or interpretation of the study results; or any other condition that the investigator deems unsuitable for participation in this study.

结局指标

主要结局

Number of subjects achieving Dose-limiting toxicity (DLT)

时间窗: Within the first 21 days following the initial dose.

DLT is defined as any adverse event (AE) that meets protocol-defined DLT criteria, occurring in the first 21 days, and considered at least possibly drug-related.

Objective response rate(ORR)

时间窗: Up to approximately 3 years

ORR is defined as the proportion of participants with confirmed complete response (CR) or partial response (PR) as the best overall response assessed per RECIST 1.1.

次要结局

  • Progression-free survival (PFS)(Up to approximately 3 years)
  • Duration of Response (DOR)(Up to approximately 3 years)
  • Disease control rate (DCR)(Up to approximately 3 years)
  • Overall Survival (OS)(Up to approximately 3 years)
  • Cmax(Up to approximately 3 years)
  • Cmin(Up to approximately 3 years)
  • Immunogenicity(Up to approximately 3 years)

研究者

申办方类型
Industry
责任方
Sponsor

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