Gastrointestinal Tumors, Solid Tumors
Conditions
Brief summary
This Phase Ib/II study is a clinical trial exploring the efficacy and safety of BL-M08D1 for injection in patients with locally advanced or metastatic digestive tract tumors and other solid tumors.
Interventions
Administration by intravenous infusion for a cycle of 3 weeks.
Sponsors
Study design
Eligibility
Inclusion criteria
1. Voluntarily sign the informed consent form and comply with the protocol requirements; 2. No gender restriction; 3. Age: ≥18 years and ≤75 years; 4. Expected survival time ≥3 months; 5. Locally advanced or metastatic gastrointestinal tumors and other solid tumors; 6. Agree to provide archival tumor tissue specimens from the primary or metastatic site within 3 years, or fresh tissue samples; 7. Must have at least one measurable lesion as defined by RECIST v1.1; 8. Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1, with no deterioration within 2 weeks prior to the first dose; 9. Toxicities from prior anti-tumor therapy have recovered to ≤ Grade 1 as defined by NCI-CTCAE v6.0; 10. No severe cardiac dysfunction, with left ventricular ejection fraction ≥50%; 11. Organ function levels must meet the requirements; 12. Coagulation function: international normalized ratio ≤1.5, and activated partial thromboplastin time ≤1.5 × upper limit of normal; 13. Urine protein ≤1+ or ≤1000 mg/24 h; 14. For premenopausal women of childbearing potential, a pregnancy test must be performed within 7 days before starting treatment, with serum pregnancy results being negative, and they must be non-lactating; all enrolled patients (regardless of male or female) must adopt adequate barrier contraceptive measures throughout the entire treatment period and for 6 months after the completion of treatment; 15. The trial participant is capable and willing to comply with the visit schedule, treatment plan, laboratory tests, and other study-related procedures specified in the protocol.
Exclusion criteria
1. Use of chemotherapy, biological therapy, immunotherapy, etc., within 4 weeks or 5 half-lives prior to the first dose; 2. History of severe cardiac or cerebrovascular disease; 3. Prolonged QTc interval, complete left bundle branch block, third-degree atrioventricular block, or frequent and uncontrolled arrhythmias; 4. Active autoimmune diseases and inflammatory diseases; 5. Diagnosis of another malignant tumor within 5 years prior to the first dose; 6. Unstable thrombotic events requiring therapeutic intervention within 6 months prior to the first dose; 7. Hypertension inadequately controlled by antihypertensive medication; 8. Poorly controlled blood glucose; 9. History of interstitial lung disease requiring hormone therapy, or current ILD, or radiation pneumonitis of Grade ≥2; 10. Severe impairment of respiratory function; 11. Active central nervous system metastases; 12. Previous or concurrent central nervous system disorders; 13. History of allergy to recombinant humanized antibodies or human-mouse chimeric antibodies, or allergy to any excipient component of BL-M08D1; 14. Previous organ transplantation or allogeneic hematopoietic stem cell transplantation; 15. Positive for human immunodeficiency virus antibody, active tuberculosis, active hepatitis B virus infection, or active hepatitis C virus infection; 16. Active infection requiring systemic treatment within 4 weeks prior to the first study drug administration; 17. Pleural, abdominal, or pericardial effusion requiring drainage and/or accompanied by symptoms within 4 weeks prior to the first study drug administration; 18. Imaging findings indicating tumor invasion or encasement of abdominal, thoracic, cervical, or other regions; 19. Use of another investigational drug within 4 weeks or 5 half-lives prior to the first dose; 20. Pregnant or breastfeeding women; 21. Other conditions deemed by the investigator to make the patient unsuitable for participation in this clinical trial.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Recommended Phase II Dose (RP2D) | Up to approximately 24 months | The RP2D is defined as the dose level chosen by the sponsor (in consultation with the investigators) for phase II study, based on safety, tolerability, efficacy, PK, and PD data collected during the dose escalation study of BL-M08D1. |
| Objective Response Rate (ORR) | Up to approximately 24 months | ORR is defined as the percentage of participants, who has a CR (disappearance of all target lesions) or PR (at least a 30% decrease in the sum of diameters of target lesions). The percentage of participants who experiences a confirmed CR or PR is according to RECIST 1.1. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Progression-free Survival (PFS) | Up to approximately 24 months | Progression-free survival (PFS) as assessed by BICR is defined as the time between the date subjects were randomized and the first observation of disease progression (based on BICR's image-based assessment) or death. |
| Disease Control Rate (DCR) | Up to approximately 24 months | Disease Control Rate (DCR) : Percentage of all randomized subjects who rated the best overall response (BOR) as complete response (CR), partial response (PR), and disease stabilization (SD) according to RECIST 1.1 criteria. |
| Duration of Response (DOR) | Up to approximately 24 months | Duration of Response (DOR) is defined as the period from the date when tumor response is first recorded to the date when objective tumor progression is first recorded or the date of death. |
| Treatment-Emergent Adverse Event (TEAE) | Up to approximately 24 months | TEAE is defined as any unfavorable and unintended change in the structure, function, or chemistry of the body temporally emerging, or any worsening (i.e., any clinically significant adverse change in frequency and/or intensity) of a pre-existing condition during the treatment of BL-M08D1 . The type, frequency and severity of TEAE will be evaluated during the treatment of BL-M08D1. |
| Cmax | Up to approximately 24 months | Cmax is defined as the maximum observed drug concentration in plasma after administration. |
| Tmax | Up to approximately 24 months | Tmax is defined as the time required to reach the maximum drug concentration in plasma following drug administration. |
| T1/2 | Up to approximately 24 months | T1/2 is defined as the time required for the plasma concentration of a drug to decrease by 50% during the elimination phase. |
| AUC0-t | Up to approximately 24 months | AUC0-t is defined as area under the serum concentration-time curve from time 0 to the time of the last measurable concentration. |
| CL (Clearance) | Up to approximately 24 months | Clearance (CL) is the volume of plasma from which a drug is completely removed per unit time. |
| Ctrough | Up to approximately 24 months | Ctrough is defined as the lowest serum concentration prior to the next dose will be administered. |
| Anti-drug Antibody (ADA) | Up to approximately 24 months | Frequency of anti-BL-M08D1 antibody (ADA) will be investigated. |
Countries
China