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A Study of BL-B01D1, SI-B003 and BL-B01D1+SI-B003 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 Monotherapy, SI-B003 Monotherapy and BL-B01D1+SI-B003 Combination Therapy (BL-B01D1+SI-B003) in Patients With Recurrent or Metastatic Head and Neck Squamous Cell Carcinoma and Other Solid Tumors

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06006169
Enrollment
186
Registered
2023-08-23
Start date
2023-10-20
Completion date
2027-12-31
Last updated
2025-09-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Head and Neck Squamous Cell Carcinoma

Brief summary

This phase II study is designed to investigate the efficacy and safety of BL-B01D1 monotherapy, SI-B003 monotherapy, and BL-B01D1+SI-B003 combination therapy in patients with recurrent or metastatic head and neck squamous cell carcinoma and other solid tumors.

Interventions

DRUGBL-B01D1

BL-B01D1 was administered by intravenous infusion on D1, D8, or D1 in 3-week cycles.

SI-B003 was administered intravenously every 3 weeks (Q3W).

Sponsors

Sichuan Baili Pharmaceutical Co., Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

1. All subjects voluntarily participated in the study and signed informed consent. 2. Male or female aged ≥18 years and ≤75 years. 3. Expected survival time ≥3 months. 4. ECOG 0-1. 5. Patients with recurrent or metastatic head and neck squamous cell carcinoma (non-nasopharyngeal carcinoma) confirmed by histopathology and/or cytology: 1. Cohort\_A, B, and Cohort\_C Stage I patients who had failed or were intolerant to 1 or more lines of systemic therapy for recurrent or metastatic HNSCC (non-nasopharyngeal carcinoma); 2. Cohort\_C Stage II patients who had not received any previous systemic antitumor therapy (other than induction chemotherapy, neoadjuvant, or adjuvant therapy) for recurrent or metastatic HNSCC (non-nasopharyngeal); Treatment failure was defined as disease progression during or after systemic antitumor therapy. Intolerance refers to the refusal of patients to continue the original regimen due to grade 3-4 adverse reactions after receiving standard treatment. Note: Recurrence or disease progression within 6 months after the last chemotherapy of multimodal therapy was considered as the first line of treatment. 6. Consent to provide archival tumor tissue specimens (10-12 unstained sections (anti-slip) surgical specimens (thickness 4-5μm)) or fresh tissue samples from primary or metastatic lesions within 3 years. If participants cannot provide tumor tissue samples, they can be enrolled if they meet other inclusion and

Exclusion criteria

after the evaluation of the investigator. 7. Must have at least one measurable lesion according to RECIST v1.1 definition; Lesions that had been previously treated with radiation could be included in a measurable lesion only if there was definite disease progression after radiation therapy. 8. No blood transfusions and no use of cell growth factors and/or platelet-raising drugs during the 14 days prior to the screening period must be allowed, and the organ function level must meet the following criteria: 1. Blood routine: hemoglobin (HGB) ≥ 90g/L; Absolute neutrophil count (NEUT) ≥ 1.5×10 9 /L; Platelet count (PLT) ≥ 100×10 9 /L; 2. Renal function: creatinine (Cr) ≤1.5 ULN, or creatinine clearance (Ccr) ≥50 mL/min (according to Cockcroft and Gault formula). 3. Liver function: total bilirubin (TBIL≤1.5 ULN), alanine aminotransferase (ALT) and aspartate aminotransferase (AST) were all ≤2.5 ULN, and AST and ALT were both ≤5.0 ULN when liver metastasis was present; 4. coagulation function: international normalized ratio (INR) ≤1.5 and activated partial thromboplastin time (APTT) ≤1.5ULN; 5. no severe cardiac dysfunction with left ventricular ejection fraction ≥50%; 6. proteinuria ≤2+ or ≤1000mg/24h. 9. Toxicity of previous antineoplastic therapy has returned to ≤ grade 1 as defined by NCI-CTCAE v5.0 (except for asymptomatic laboratory abnormalities such as ALP elevation, hyperuricemia, and hyperglycemia, as judged by the investigator, and toxicity without safety risk, such as alopecia, grade 2 peripheral neurotoxicity, or decreased hemoglobin ≥90g/L, as judged by the investigator). 10. For premenopausal women with childbearing potential, a pregnancy test must be performed within 7 days before the start of treatment, the 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 whole treatment cycle and for 6 months after the end of treatment.

Design outcomes

Primary

MeasureTime frameDescription
Objective response rate (ORR)Up to approximately 24 monthsORR 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.
Recommended Phase II Dose (RP2D)Up to approximately 24 monthsThe 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.

Secondary

MeasureTime frameDescription
Progression-free survival (PFS)Up to approximately 24 monthsThe PFS is defined as the time from the first dose of medication to disease progression or death, whichever occurred first.
Disease control rate (DCR)Up to approximately 24 monthsThe DCR is defined as the percentage of participants who has a CR, PR, or Stable Disease (SD: neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for progressive disease \[PD: at least a 20% increase in the sum of diameters of target lesions and an absolute increase of at least 5 mm. The appearance of one or more new lesions is also considered PD\]).
Duration of response (DOR)Up to approximately 24 monthsThe DOR for a responder is defined as the time from the participant's initial objective response to the first date of either disease progression or death, whichever occurs first.
Treatment-Emergent Adverse Event (TEAE)Up to approximately 24 monthsTEAE is defined as any adverse and unexpected change in body structure, function, or chemistry or any exacerbation of an existing condition (i.e., any clinically significant adverse change in frequency and/or intensity) during treatment. The type, frequency, and severity of TEAE will be assessed during treatment.

Countries

China

Contacts

Primary ContactSa Xiao, PHD
xiaosa@baili-pharm.com+8615013238943

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026