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A study of benmelstobart, anlotinib, chemotherapy and thoracic radiotherapy for people with extensive-stage small cell lung cancer

A single-arm, exploratory clinical study of benmelstobart combined with anlotinib and chemotherapy followed by thoracic radiotherapy as first-line treatment for extensive-stage small cell lung cancer (ES-SCLC)

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2600122483
Enrollment
Unknown
Registered
2026-04-14
Start date
2026-04-20
Completion date
Unknown
Last updated
2026-04-20

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

Conditions

Extensive-Stage Small Cell Lung Cancer

Interventions

Single Arm:Bemotuzumab Vedotin Injection 1200mg intravenous infusion every 3 weeks + Anlotinib Hydrochloride Capsules 12mg oral once daily (continuous 2 weeks, then 1 week off) + Carboplatin AUC 5 mg/
followed by sequential thoracic radiotherapy 2 Gy per session, once daily, total 25-30 sessions (consolidation phase)
followed by maintenance therapy with bemotuzumab and anlotinib until disease progression or intolerable toxicity (maintenance phase)

Sponsors

Shanghai Pulmonary Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 75 Years

Inclusion criteria

Inclusion criteria: 1. Histologically or cytologically confirmed unresectable extensive-stage SCLC (VALG staging); 2. No prior systemic therapy for extensive-stage SCLC; 3. Measurable lesions per RECIST 1.1. Previously irradiated lesions are considered measurable only if there is clear progression post-radiotherapy and they are not the sole lesion; 4. Age 18–75 years; 5. ECOG performance status 0–1; 6. Life expectancy >=3 months; 7. =1.5 ×10^9/L; 2) Platelet count (PLT) >=100 ×10^9/L; 3) Hemoglobin (HB) >=80 g/L. (2) Renal: 1) Calculated creatinine clearance (CrCl) >=50 mL/min; 2) Urine protein =28 g/L. (4) Coagulation: INR and APTT =50%. (6) Other: 1) Lipase 1.5× ULN without clinical/imaging evidence of pancreatitis); 2) Amylase 1.5× ULN without clinical/imaging evidence of pancreatitis); 3) Alkaline phosphatase (ALP) <=2.5× ULN (<=5× ULN if bone metastases present). 9. Voluntary participation with signed informed consent, good compliance, and cooperation with follow-up.

Exclusion criteria

Exclusion criteria: 1. Patients with symptomatic brain metastases. Patients whose brain metastases have been treated and remain clinically stable for at least 1 month, with no use of steroids or anticonvulsants for at least 1 month prior to study enrollment, are eligible; 2. Prior use of anti-angiogenic agents such as anlotinib, apatinib, bevacizumab, or immune checkpoint inhibitors targeting PD-1, PD-L1, etc; 3. Patients with conditions that affect oral drug administration (e.g., dysphagia, post-gastrointestinal resection, chronic diarrhea, intestinal obstruction, etc.); 4. Uncontrolled pleural effusion, pericardial effusion, or ascites requiring repeated drainage; 5. Patients with radiological evidence of tumor invasion around major blood vessels, or those judged by the investigator to be at high risk of fatal massive hemorrhage due to potential tumor invasion of major blood vessels during the study; 6. History of severe bleeding tendency or coagulation disorders, including but not limited to: clinically significant hemoptysis (>= 1 tablespoon per day) within 3 months prior to enrollment; or clinically significant bleeding symptoms or tendency within 4 weeks prior to group assignment, such as gastrointestinal bleeding, hemorrhagic gastric ulcer (including gastrointestinal perforation and/or fistula; patients with gastrointestinal perforation or fistula that has been surgically resected are eligible), unhealed wounds, ulcers, or fractures, etc; 7. Receipt of major surgical treatment, incisional biopsy, or significant traumatic injury within 28 days prior to group assignment; 8. History of arterial/venous thrombotic events (e.g., cerebrovascular accident including transient ischemic attack, deep vein thrombosis, pulmonary embolism) within 6 months prior to group assignment; 9. Active autoimmune disease requiring systemic treatment (e.g., disease-modifying antirheumatic drugs, corticosteroids, or immunosuppressants) within 2 years prior to the first dose of study drug; 10. Other conditions that increase the risk associated with study participation or study drugs and, in the investigator’s judgment, render the patient unsuitable for enrollment;

Design outcomes

Primary

MeasureTime frame
Investigator-Assessed Objective Response Rate;

Secondary

MeasureTime frame
Overall Survival (OS);6-Month Progression-Free Survival Rate;Serious Adverse Event (SAE);Adverse Event (AE);18-Month Overall Survival Rate;Progression-Free Survival (PFS);Duration of Response (DOR);12-Month Progression-Free Survival Rate;12-Month Overall Survival Rate;Disease Control Rate (DCR);Immune-Related Adverse Event (irAE);

Countries

China

Contacts

Public ContactHe Yaye

Shanghai Pulmonary Hospital

2250601@qq.com+86 21 65115006

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Apr 23, 2026