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A Study Comparing BL-B01D1 With Topotecan in Patients With Recurrent Small Cell Lung Cancer(PANKU-Lung03)

A Phase III Randomized Controlled Clinical Study Comparing BL-B01D1 With Topotecan in Patients With Recurrent Small Cell Lung Cancer After Failure of Anti-PD-1/PD-L1 Monoclonal Antibodies and Platinum-based Chemotherapy

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06500026
Enrollment
722
Registered
2024-07-15
Start date
2024-08-07
Completion date
2026-12-01
Last updated
2026-04-17

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

Conditions

Small Cell Lung Cancer

Brief summary

This trial is a registered phase III, randomized, open-label, multicenter study to evaluate the efficacy and safety of BL-B01D1 in patients with recurrent small cell lung cancer after failure of anti-PD-1/PD-L1 Monoclonal Antibodies and platinum-based chemotherapy.

Interventions

DRUGBL-B01D1

Administration by intravenous infusion for a cycle of 3 weeks.

DRUGTopotecan

Administration by intravenous infusion for a cycle of 3 weeks.

Sponsors

Sichuan Baili Pharmaceutical Co., Ltd.
Lead SponsorINDUSTRY
Baili-Bio (Chengdu) Pharmaceutical Co., Ltd.
CollaboratorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

1. Voluntarily sign the informed consent and follow the requirements of the protocol; 2. Age ≥18 years old; 3. Expected survival time ≥3 months; 4. Patients with recurrent small-cell lung cancer after failure of anti-PD-1/PD-L1 monoclonal antibodies and platinum-based chemotherapy; 5. Consent to provide archival tumor tissue samples or fresh tissue samples of primary or metastatic lesions within 3 years; 6. Must have at least one measurable lesion according to RECIST v1.1 definition; 7. ECOG 0 or 1; 8. Toxicity of previous antineoplastic therapy has returned to ≤ grade 1 defined by NCI-CTCAE v5.0; 9. No severe cardiac dysfunction, left ventricular ejection fraction ≥50%; 10. The organ function level must meet the requirements on the premise that blood transfusion is not allowed within 14 days before the screening period, and no cell growth factor drugs are allowed; 11. A serum pregnancy test must be performed within 7 days before the start of treatment for premenopausal fertile women, and the result must be negative and 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. The patient has histological or cytologic evidence of non-small cell lung cancer or mixed components of small cell lung cancer/non-small cell lung cancer; 2. Prior to randomization, chemotherapy, targeted therapy, or biological therapy were used within 4 weeks or 5 half-lives, small molecule targeted therapy was used within 5 days, or palliative radiotherapy was used within 2 weeks; 3. Patients with recurrent small cell lung cancer who are eligible for curative local therapy; 4. Received chemotherapy with TOP I inhibitor; 5. Received anti-EGFR and/or HER3 antibody /ADC drugs; 6. History of severe heart disease or cerebrovascular disease; 7. Unstable thrombotic events requiring therapeutic intervention within 6 months before screening; Infusion-related thrombosis was excluded; 8. Complete left bundle branch block, III degree atrioventricular block, frequent and uncontrollable arrhythmia; 9. Diagnosis of active malignancy within 3 years before randomization; 10. Hypertension poorly controlled by two antihypertensive drugs; 11. Patients with poor glycemic control; 12. A history of ILD requiring steroid therapy, or current ILD or grade ≥2 radiation pneumonitis; 13. Complicated pulmonary diseases leading to clinically severe respiratory function impairment; 14. Patients with active central nervous system metastases; 15. Severe infection within 4 weeks before randomization; There was evidence of pulmonary infection or active pulmonary inflammation requiring clinical intervention within 2 weeks before randomization; 16. Patients with massive or symptomatic effusions or poorly controlled effusions; 17. Imaging examination showed that the tumor had invaded or enveloped the large blood vessels in the abdomen, chest, neck, and pharynx; 18. Severe unhealed wound, ulcer, or fracture within 4 weeks before signing the informed consent; 19. Subjects with clinically significant bleeding or obvious bleeding tendency within 4 weeks before signing the informed consent; 20. Patients with inflammatory bowel disease, extensive bowel resection history, immune enteritis history, intestinal obstruction, chronic diarrhea or Gilbert's syndrome; 21. Patients with a history of allergy to recombinant humanized antibodies or to any of the excipients of BL-B01D1; 22. Human immunodeficiency virus antibody positive, active hepatitis B virus infection or hepatitis C virus infection; 23. A history of severe neurological or mental illness; 24. Subjects who were scheduled to receive live vaccine or received live vaccine within 28 days before study randomization; 25. Other circumstances that were assessed by the investigator as inappropriate for participation in the trial.

Design outcomes

Primary

MeasureTime frameDescription
Overall survival (OS)Up to approximately 24 monthsOverall survival (OS) is defined as the time between the subject's randomization date and subject's death.

Secondary

MeasureTime frameDescription
Progression-free survival (PFS)Up to approximately 24 monthsProgression-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.
Objective Response Rate (ORR)Up to approximately 24 monthsObjective 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).
Disease Control Rate (DCR)Up to approximately 24 monthsDisease 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 monthsDuration 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.
Treatment Emergent Adverse Event (TEAE)Up to approximately 24 monthsTEAE 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.
Anti-drug antibody (ADA)Up to approximately 24 monthsFrequency of anti-BL-B01D1 antibody (ADA) will be investigated.

Countries

China

Contacts

PRINCIPAL_INVESTIGATORLi Zhang

Sun Yat-Sen University Cancer Center

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 25, 2026