Surufatinib Combined With Serplulimab Plus Chemotherapy in the Treatment of Extensive-stage Small Cell Lung Cancer

Study Overview
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Brief Summary
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To evaluates the effectiveness and safety of Surufatinib combined with Serplulimab plus chemotherapy for the first-line treatment of ES-SCLC, and maintenance therapy are Surufatinib combined with Serplulimab

Official Title
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Surufatinib Combined With Serplulimab Plus Carboplatin and Etoposide as First-line Treatment for Extensive-stage Small-cell Lung Cancer：a Multicenter, Open-label, Phase I/II Trial

Conditions
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Small Cell Lung Cancer

Intervention / Treatment
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* Drug: Surufatinib,Serplulimab,Etoposide,Carboplatin


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients must have the ability to understand and voluntarily sign informed consent; Age: 18-75 years old; Expected survival period ≥ 3 months; Histologically or cytologically diagnosed with ES-SCLC (Combined small cell lung carcinoma excepted); No prior systemic therapy for ES-SCLC; According to the RECIST 1.1 standard, the patient has at least one target lesion with a measurable diameter; ECOG PS: 0-1; Major organs are functioning well; The urine or serum pregnancy test results of premenopausal women were negative. Exclusion Criteria: Patients with symptomatic brain metastases; People with hypertension who cannot be well controlled by double antihypertensive drug (systolic blood pressure≥140 mmHg, diastolic blood pressure≥90 mmHg); Urine routine test showed urine protein ≥++ and confirmed 24-hour urine protein quantification>1.0g; Cardiovascular disease history: congestive heart failure> New York Heart Association (NYHA) standard II, patients with active coronary artery disease (those with myocardial infarction 6 months before enrollment can be enrolled), arrhythmia requiring treatment; Active severe clinical infections (>NCI-CTCAE 5.0 version 2 infection criteria), including tuberculosis (clinical evaluation, including clinical history, physical examination, imaging findings and TB examination in line with local clinical practice), hepatitis B (known HBV Surface antigen [HbsAg] positive), hepatitis C or human immunodeficiency virus (HIV 1/2 antibody positive);Patients who have previously had HBV infection or have been cured (defined as the presence of hepatitis B core IgG antibodies and the absence of HBsAg) are eligible. Hepatitis C virus (HCV) antibody-positive patients are only eligible if the HCV RNA polymerase chain reaction is negative. Patients with bleeding tendency or coagulation disorders; In the past 2 years, there are active autoimmune diseases that require systemic treatment (such as corticosteroids or immunosuppressive drugs), and related alternative treatments (such as thyroxine, insulin, or physiological corticosteroid replacement for renal or pituitary insufficiency) are allowed treatment); Patients who are pregnant or breastfeeding; Allergy to any of the drugs in the study; Imaging (CT or MRI) shows that the tumor invades or is poorly demarcated from large vessels; Researchers think it is inappropriate to participate in this trial.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 75 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Surufatinib Combined With Serplulimab and EC Chemotherapy<br> | Drug: Surufatinib,Serplulimab,Etoposide,Carboplatin<br>* In dose escalation, Surufatinib will be administered orally (PO) once daily (QD) ,d1-21,q3w + Serplulimab 4.5 mg/kg ivgtt,d1,q3w+Etoposide 100mg/m2,d1-3,q3w + Carboplatin AUC=5,d1,q3w; 4-6 cycles in total. At the indication-specific expansion portion of the study, patients will receive surufatinib RP2D,d1-21,q3w+Serplulimab 4.5 mg/kg ivgtt,d1,q3w+Etoposide 100mg/m2,d1-3,q3w + Carboplatin AUC=5,d1,q3w, 4-6 cycles in total. After the end of the first-line treatment, patients with CR, PR, and SD can continue to maintenance treatment with Surufatinib RP2D,d1-21,q3w＋Serplulimab 4.5 mg/kg ivgtt,d1,q3w until the disease progressed.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Progress Free Survival(PFS) |  | up to 24 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Objective response rate(ORR) |  | up to 24 months | 
| Overall Survival(OS) |  | up to 24 months | 
| Disease control rate(DCR) |  | up to 24 months |