A Study of BL-M09D1 in Patients With Locally Advanced or Metastatic Non-Small Cell Lung Cancer and Other Solid Tumors

Inclusion criteria

• Voluntarily sign the informed consent form and comply with the protocol requirements;
• No gender restrictions;
• Age: ≥18 years and ≤75 years (Phase Ia); ≥18 years (Phase Ib);
• Expected survival time ≥3 months;
• Histologically or cytologically confirmed locally advanced or metastatic non-small cell lung cancer or other solid tumors that have failed standard treatment;
• Willing to provide archived or fresh tumor tissue samples from primary or metastatic lesions within the past 2 years;
• Must have at least one measurable lesion as defined by RECIST v1.1;
• ECOG performance status score of 0 or 1;
• Toxicities from prior anti-tumor therapy have recovered to ≤ Grade 1 as defined by NCI-CTCAE v5.0;
• No severe cardiac dysfunction, left ventricular ejection fraction (LVEF) ≥50%;
• Organ function levels must meet the requirements;
• Coagulation function: International Normalized Ratio (INR) ≤1.5, and activated partial thromboplastin time (APTT) ≤1.5 × upper limit of normal (ULN);
• Urine protein ≤2+ or ≤1000mg/24h;
• For premenopausal women with childbearing potential, a serum pregnancy test must be negative within 7 days before starting treatment, and they must not be breastfeeding. All enrolled patients (regardless of gender) must use adequate barrier contraception throughout the treatment period and for 6 months after treatment completion;
• The subject has the ability and willingness to comply with the visits, treatment plans, laboratory tests, and other study-related procedures specified in the protocol.

Exclusion criteria

• Received chemotherapy, biological therapy, immunotherapy, etc., within 4 weeks or 5 half-lives before the first dose;
• History of severe cardiac disease;
• Prolonged QT interval, complete left bundle branch block, or third-degree atrioventricular block;
• Active autoimmune or inflammatory diseases;
• Diagnosed with another malignancy within 5 years before the first dose (except cured basal cell carcinoma of the skin, squamous cell carcinoma of the skin, or carcinoma in situ of the cervix);
• Unstable thrombotic events requiring therapeutic intervention within 6 months before the first dose;
• Poorly controlled hypertension;
• Poorly controlled diabetes mellitus;
• History of interstitial lung disease (ILD) requiring steroid therapy, current ILD, or ≥Grade 2 radiation pneumonitis;
• Concurrent pulmonary diseases resulting in clinically severe respiratory impairment;
• Active central nervous system metastases;
• History of allergy to recombinant humanized antibodies or human-mouse chimeric antibodies, or hypersensitivity to any excipient of BL-M09D1;
• Previous organ transplantation or allogeneic hematopoietic stem cell transplantation (Allo-HSCT);
• Cumulative dose of anthracyclines >360 mg/m² in prior (neo)adjuvant anthracycline therapy;
• Positive for human immunodeficiency virus (HIV) antibody, active tuberculosis, active hepatitis B virus (HBV) infection, or active hepatitis C virus (HCV) infection;
• Active infections requiring systemic treatment within 4 weeks before the first study drug administration;
• Pleural, peritoneal, pelvic, or pericardial effusion requiring drainage and/or symptomatic within 4 weeks before the first study drug administration;
• Participation in another clinical trial within 4 weeks or 5 half-lives before the first dose;
• Pregnant or lactating women;
• Other conditions deemed by the investigator as unsuitable for participation in this clinical trial.