A Study of BL-B01D1+PD-1 Monoclonal Antibody in Patients With Recurrent or Metastatic Head and Neck Squamous Cell Carcinoma and Other Solid Tumors

A Phase II Clinical Trial To Evaluate the Efficacy and Safety of BL-B01D1+PD-1 Monoclonal Antibody in Patients With Recurrent or Metastatic Head and Neck Squamous Cell Carcinoma (Non-nasopharyngeal Carcinoma) and Other Solid Tumors

This study is a phase II clinical study to explore the efficacy and safety of BL-B01D1 + PD-1 monoclonal antibody combination therapy in patients with recurrent or metastatic head and neck squamous cell carcinoma (non-nasopharyngeal carcinoma) and other solid tumors.

Study Overview

• Status: Recruiting
• Conditions: Head and Neck Squamous Cell Carcinoma
• Intervention / Treatment: Drug: BL-B01D1; Drug: PD-1 monoclonal antibody

• Study Type: Interventional
• Enrollment (Estimated): 46
• Phase: Phase 2

Contacts and Locations

• Study Contact: Name: Sa Xiao, PHD; Phone Number: 15013238943; Email: xiaosa@baili-pharm.com

Study Locations

• China
  • Shanghai
    • Shanghai, Shanghai, China
      • Recruiting
      • Fudan University Shanghai Cancer Center
      • Contact: Chaosu Hu
      • Principal Investigator: Dongmei Ji
      • Principal Investigator: Chaosu Hu

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

1. Subject volunteered to participate in the study and signed an informed consent;
2. Male or female aged ≥18 years and ≤75 years;
3. Expected survival time ≥3 months;
4. ECOG score 0-1;
5. Patients with recurrent or metastatic head and neck squamous cell carcinoma (non-nasopharyngeal carcinoma) and other solid tumors confirmed by histopathology and/or cytology;
6. Patients must provide a documented tumor tissue specimen of the primary or metastatic tumor within 3 years for PD-L1 testing and other testing;
7. At least one measurable lesion meeting the RECIST v1.1 definition was required;
8. No blood transfusion and no use of cell growth factors and/or platelet-raising drugs within 14 days before screening, and the organ function level must meet the requirements;
9. The toxicity of previous antineoplastic therapy has returned to ≤ grade 1 as defined by NCI-CTCAE v5.0;
10. For premenopausal women of childbearing potential, a pregnancy test must be performed within 7 days before the initiation of treatment, a serum or urine pregnancy test must be negative, and the patient must not be lactating; All enrolled patients should take adequate barrier contraception during the entire treatment cycle and for 6 months after the end of treatment.

Exclusion Criteria:

1. Prior treatment with an ADC drug with TOP I inhibitors as a toxin;
2. Before the first delivery within four weeks or five half-life used anti-tumor treatment; Palliative radiotherapy was given within 2 weeks before the first dose;
3. Received any previous systemic antitumor regimen for solid tumors such as recurrent or metastatic head and neck squamous cell carcinoma;
4. Had received immunotherapy and developed ≥ grade 3 irAE or ≥ grade 2 immune-related myocarditis;
5. Use of an immunomodulatory drug within 14 days before the first dose of study drug;
6. Systemic corticosteroids were required within 2 weeks before the first dose of the study;
7. Has a history of severe disease of heart head blood-vessel;
8. Active autoimmune and inflammatory diseases;
9. Other malignant tumors that progressed or required treatment within 3 years before the first dose;
10. With ILD requiring steroid treatment, current ILD, or suspected ILD at screening;
11. Presence of: a) poorly controlled diabetes mellitus before study treatment; b) poorly controlled hypertension; c) history of hypertensive crisis or hypertensive encephalopathy;
12. Unstable thrombotic events requiring therapeutic intervention within 6 months before screening;
13. Patients with active central nervous system metastasis;
14. Patients with pleural effusion, pericardial effusion or ascites with clinical symptoms or requiring repeated drainage;
15. Had allergic history to recombinant humanized antibody or human-mouse chimeric antibody or to any of BL-B01D1's excipients;
16. Prior organ transplantation or allogeneic hematopoietic stem cell transplantation (Allo-HSCT);
17. Human immunodeficiency virus antibody positive, active tuberculosis, active hepatitis B virus infection or active hepatitis C virus infection;
18. Active infection requiring systemic therapy;
19. Had participated in another clinical trial within 4 weeks before the first dose;
20. Who have a history of psychotropic drug abuse and cannot abstain from it or have mental disorders;
21. Other circumstances that the investigator deemed inappropriate for participation in the trial.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Study treatment; Participants receive BL-B01D1 + PD-1 monoclonal antibody as intravenous infusion for the first cycle (3 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.	Drug: BL-B01D1; Administration by intravenous infusion for a cycle of 3 weeks.; Other Names: BMS-986507; iza-bren; izalontamab brengitecan; Drug: PD-1 monoclonal antibody; Administration by intravenous infusion for a cycle of 3 weeks.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Recommended Phase II Dose (RP2D)	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-B01D1.	Up to approximately 24 months
Objective Response Rate (ORR)	Objective response rate (ORR) is defined as the number of CR and PR in the treatment and control groups divided by the number of that group in the full analysis set (FAS).	Up to approximately 24 months

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Disease Control Rate (DCR)	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.	Up to approximately 24 months
Duration of Response (DOR)	Duration of Response (DOR) : 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.	Up to approximately 24 months
Treatment Emergent Adverse Event (TEAE)	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-B01D1. The type, frequency and severity of TEAE will be evaluated during the treatment of BL-B01D1.	Up to approximately 24 months
Progression-free survival (PFS)	Progression-free survival (PFS) as assessed by BIRC is defined as the time between the date subjects are randomized and the first observation of disease progression (based on BICR's image-based assessment) or death.	Up to approximately 24 months

Collaborators and Investigators

• Sponsor: Sichuan Baili Pharmaceutical Co., Ltd.
• Collaborators: Baili-Bio (Chengdu) Pharmaceutical Co., Ltd.
• Investigators: Principal Investigator: Dongmei Ji, Fudan University; Principal Investigator: Chaosu Hu, Fudan University

Study record dates

Study Major Dates

• Study Start (Actual): June 7, 2024
• Primary Completion (Estimated): June 1, 2026
• Study Completion (Estimated): June 1, 2026

Study Registration Dates

• First Submitted: May 27, 2024
• First Submitted That Met QC Criteria: May 27, 2024
• First Posted (Actual): May 31, 2024

Study Record Updates

• Last Update Posted (Actual): May 7, 2025
• Last Update Submitted That Met QC Criteria: May 5, 2025
• Last Verified: May 1, 2025

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Neoplasms by Site; Neoplasms; Neoplasms by Histologic Type; Head and Neck Neoplasms; Neoplasms, Glandular and Epithelial; Neoplasms, Squamous Cell; Squamous Cell Carcinoma of Head and Neck; Carcinoma; Carcinoma, Squamous Cell; Immunologic Factors; Physiological Effects of Drugs; Antibodies; Antibodies, Monoclonal
• Other Study ID Numbers: BL-B01D1-204-02

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No