A Study of BL-M24D1 in Patients With Locally Advanced or Metastatic Gastrointestinal Tumors and Other Solid Tumors

Sichuan Baili Pharmaceutical

Status and phase: Not yet enrolling; Phase 1

Conditions: Gastrointestinal Tumors; Solid Tumors

Treatments: Drug: BL-M24D1

Study type: Interventional

Funder types: Industry

Identifiers

NCT07279428

BL-M24D1-102

Details and patient eligibility

About

This study is an open, multicenter, non-randomized phase I clinical trial to evaluate the safety, tolerability, pharmacokinetic characteristics and preliminary efficacy of BL-M24D1 for Injection in patients with locally advanced or metastatic gastrointestinal tumors and other solid tumors.

Full description

The study is divided into two phases: a dose escalation phase (Phase Ia) and a cohort expansion phase (Phase Ib).

Enrollment: 33 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

1. Voluntarily sign the informed consent form and comply with the protocol requirements;
2. No gender restrictions;
3. Age: ≥18 years and ≤75 years (Phase Ia); ≥18 years (Phase Ib);
4. Expected survival time ≥3 months;
5. Locally advanced or metastatic digestive tract tumors and other solid tumors;
6. Agree to provide archived tumor tissue specimens or fresh tissue samples from primary or metastatic lesions within the past 3 years;
7. Must have at least one measurable lesion meeting the RECIST v1.1 criteria;
8. ECOG performance status score of 0 or 1;
9. Toxicities from prior antitumor treatments have recovered to ≤ Grade 1 as defined by NCI-CTCAE v5.0;
10. No severe cardiac dysfunction, left ventricular ejection fraction ≥50%;
11. Organ function levels must meet the requirements;
12. Coagulation function: International Normalized Ratio (INR) ≤1.5, and activated partial thromboplastin time (APTT) ≤1.5 × ULN;
13. Urine protein ≤2+ or ≤1000mg/24h;
14. For premenopausal women with childbearing potential, a pregnancy test must be conducted within 7 days before starting treatment, serum pregnancy must be negative, and they must not be breastfeeding; all enrolled patients (regardless of gender) should adopt adequate barrier contraception throughout the treatment cycle and for 6 months after treatment ends.

Exclusion criteria

1. Use of chemotherapy, biological therapy, or immunotherapy within 4 weeks prior to the first dose or within 5 half-lives;
2. History of severe heart disease;
3. QT interval prolongation, complete left bundle branch block, or third-degree atrioventricular block;
4. Active autoimmune or inflammatory diseases;
5. Diagnosis of other malignancies within 5 years prior to the first dose;
6. Hypertension poorly controlled by two antihypertensive medications;
7. Patients with poorly controlled blood glucose;
8. Unstable thrombotic events requiring therapeutic intervention within 6 months prior to the first dose;
9. Lung diseases graded ≥3 according to CTCAE v5.0;
10. Symptoms of active central nervous system metastases;
11. History of allergy to recombinant humanized antibodies or human-mouse chimeric antibodies, or allergy to any excipient component of BL-M24D1;
12. Previous organ transplantation or allogeneic hematopoietic stem cell transplantation (Allo-HSCT);
13. Cumulative dose of anthracyclines >360 mg/m² in previous (neo)adjuvant anthracycline therapy;
14. Human immunodeficiency virus antibody positivity, active tuberculosis, active hepatitis B virus infection, or active hepatitis C virus infection;
15. History of interstitial lung disease (ILD) requiring steroid treatment, or current ILD;
16. Active infection requiring systemic treatment within 4 weeks prior to the first investigational drug dose;
17. Pleural, abdominal, pelvic, or pericardial effusion requiring drainage and/or accompanied by symptoms within 4 weeks prior to the first investigational drug dose;
18. Subjects with clinically significant bleeding or obvious bleeding tendency within 4 weeks prior to the first investigational drug dose;
19. Participation in another clinical trial within 4 weeks prior to the first dose;
20. Pregnant or lactating women;
21. Other conditions deemed by the investigator as unsuitable for participation in this clinical trial.

Trial design

Primary purpose: Treatment

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)

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33 participants in 1 patient group

BL-M24D1

Experimental group

Description:

Participants receive BL-M24D1 as intravenous infusion for the first cycle (2 weeks). Participants with clinical benefit could receive additional treatment for more cycles. The administration will be terminated because of disease progression or intolerable toxicity occurring or other reasons.

Treatment:

Drug: BL-M24D1