A Study of BL-B01D1 in Patients With Locally Advanced or Metastatic Gastrointestinal Tumor and Other Solid Tumor

This is an interventional treatment trial for Gastrointestinal Tumor focused on measuring Esophageal Cancer (EC), Gastric Cancer (GC), Pancreatic Cancer (PC), Colorectal Cancer (CRC) Read More

Inclusion Criteria:

1. Participants must sign the informed consent form voluntarily and follow the plan requirements.
2. No gender limit.
3. Age: ≥18 years old and ≤75 years old (phase Ia); ≥18 years old (phase Ib).
4. Expected survival time ≥ 3 months.
5. Patients with locally advanced or metastatic triple-negative breast cancer or other solid tumors who have been diagnosed histopathologically and/or cytologically as failing standard therapy, or who are not eligible for standard therapy at this stage, and who are inoperable.
6. Agree to provide archived tumor tissue samples or fresh tissue samples from the primary tumor or metastatic tumor within 3 years (TROP2 protein expression in tumor pathological tissue to explore the correlation between TROP2 protein expression and BL-M02D1 validity index); If subjects are unable to provide tumor tissue samples, they will be admitted after evaluation by the investigator if other admission criteria are met.
7. Participants must have at least one assessable lesion as defined by RECIST V1.1.
8. Has an Eastern Cooperative Oncology Group performance status (ECOG PS) 0-1
9. The toxicity of previous anti-tumor therapy has been restored to level ≤1 as defined by NCI-CTCAE V5.0 (except for asymptomatic laboratory abnormalities such as elevated ALP, hyperuricemia, elevated serum amylase/lipase, and elevated blood glucose; except for toxicity that the investigator determined to have no safety risk, such as alopecia, grade 2 peripheral neurotoxicity, hypothyroidism stabilized by hormone replacement therapy, etc.)
10. Has adequate organ function before registration, defined as: a) Bone marrow function: Absolute neutrophil count (ANC) ≥1.5×109/L, Platelet count ≥90×109/L, Hemoglobin ≥90 g/L; B) Hepatic function: Total bilirubin (TBIL≤1.5 ULN), AST and ALT ≤2.5 ULN for participants without liver metastasis, AST and ALT ≤5.0 ULN for liver metastases; c) Renal function: Creatinine (Cr) ≤1.5 ULN, or creatinine clearance (Ccr) ≥50 mL/min (according to the Cockcroft and Gault formula).
11. Coagulation function: International normalized ratio (INR)≤1.5, and activated partial thromboplastin time (APTT)≤1.5ULN.
12. Urinary protein ≤2+ or ≤1000mg/24h.
13. For premenopausal women with childbearing potential, a pregnancy test must be taken within 7 days prior to the start of treatment. Serum or urine pregnancy must be negative and must be non-lactating. Adequate barrier contraceptive measures should be taken during the treatment and 6 months after the end of treatment for all participants (regardless of male or female).

Exclusion Criteria:

Patients screened for any of the following conditions will not be included in this study:

1. Chemotherapy, biological therapy, immunotherapy, radical radiotherapy, major surgery, targeted therapy (including small molecule inhibitor of tyrosine kinase), and other anti-tumor therapy within 4 weeks or 5 half-lives (whichever is shorter) prior to the first administration; mitomycin and nitrosoureas treatment within 6 weeks prior to the first administration; oral fluorouracil-like drugs such as S-1, capecitabine, or palliative radiotherapy within 2weeks prior to the first administration.
2. Prior treatment with ADC drugs targeting TROP2 or ADC drugs using camptothecin derivatives (topoisomerase I inhibitors) as toxins.
3. Participants with history of severe heart disease, such as: symptomatic congestive heart failure (CHF) ≥ grade 2 (CTCAE 5.0), New York Heart Association (NYHA) ≥ grade 2 heart failure, history of transmural myocardial infarction, unstable angina pectoris etc.
4. Participants with prolonged QT interval (male QTc> 450 msec or female QTc> 470 msec), complete left bundle branch block, III grade atrioventricular block.
5. Active autoimmune diseases and inflammatory diseases, such as: systemic lupus erythematosus, psoriasis requiring systemic treatment, rheumatoid arthritis, inflammatory bowel disease and Hashimoto's thyroiditis, etc., except for type I diabetes, hypothyroidism that can be controlled only by alternative treatment, and skin diseases that do not require systemic treatment (such as vitiligo, psoriasis).
6. The presence of a second primary tumor within 5 years prior to initial administration, except for radical basal cell carcinoma of the skin, squamous cell carcinoma of the skin, and/or radical resected carcinoma in situ.
7. Screening for unstable thrombotic events such as deep vein thrombosis, arterial thrombosis and pulmonary embolism requiring therapeutic intervention within the first 6 months; Infusion device-related thrombosis is excluded;
8. Patients with poorly controlled pleural effusion with clinical symptoms were judged by researchers to be unsuitable for inclusion.
9. Participants with poorly controlled hypertension by antihypertensive drugs (systolic blood pressure>150 mmHg or diastolic blood pressure>100 mmHg).
10. Lung disease defined as grade ≥3 according to CTCAE V5.0; ≥2 grade of radioactive lung disease, current or history of interstitial lung disease (ILD).
11. Symptoms of active central nervous system metastasis. However, participants with stable brain metastasis can be included. Stable is defined as: a. With or without antiepileptic drugs, the seizure-free state lasts for more than 12 weeks; b. There is no need to use glucocorticoids; c. Continuous multiple MRI (scanning interval at least 8 weeks) showed a stable state in imaging; d. Stable after treatment for more than 1 month without symptoms;
12. Participants who have a history of allergies to recombinant humanized antibodies or human-mouse chimeric antibodies or any of the components of BL-M02D1.
13. Participants have a history of organ transplantation or allogeneic stem cell transplantation (Allo-HSCT).
14. In the adjuvant (or neoadjuvant) treatment of anthracyclines, the cumulative dose of anthracyclines is> 360 mg/m2.
15. Human immunodeficiency virus antibody (HIVAb) positive, active tuberculosis, active hepatitis B virus infection (HBV-DNA copy number> the lower limit of detection) or active hepatitis C virus infection (HCV antibody positive and HCV-RNA > the lower limit of detection).
16. Participants with active infections requiring systemic treatment, such as severe pneumonia, bacteremia, sepsis, etc.
17. Participated in another clinical trial within 4 weeks prior to participating in the study.
18. Pregnant or nursing women.
19. Other conditions that the investigator believes that it is not suitable for participating in this clinical trial.