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Sintilimab Combined With Tafolecimab and Chemotherapy as First-Line Treatment for Extensive-Stage Small Cell Lung Cancer

Efficacy and Safety of Sintilimab Combined With Tafolecimab and Chemotherapy as First-Line Treatment for Extensive-Stage Small Cell Lung Cancer (STAR-SCLC):A Prospective, Single Arm Trial

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07061535
Acronym
STAR-SCLC
Enrollment
40
Registered
2025-07-11
Start date
2025-07-30
Completion date
2027-08-01
Last updated
2026-06-23

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

Conditions

Extensive Disease Small Cell Lung Cancer, Extensive Stage Lung Small Cell Cancer, Extensive-Stage Small-Cell Lung Cancer, Extensive-stage Small Cell Lung Cancer (ES-SCLC)

Keywords

Tafolecimab, Sintilimab, immunotherapy, PCSK9 inhibitor, SCLC

Brief summary

This is a single arm, multi-center clinical trial. The goal of this clinical trial is to evaluate the efficacy, safety and biomarkers of Tafolecimab combined with Sintilimab and Chemotherapy as first-line treatment for patients with extensive-stage small cell lung cancer (ES-SCLC). Tafolecimab is a recombinant fully humanized monoclonal antibody against proprotein convertase subtilisin/kexin type 9 (PCSK-9), which can reduce low-density lipoprotein-C levels and increase the expression level of major histocompatibility complex class I (MHC-I) on tumor cells. Sintilimab is a fully humanized IgG4 monoclonal antibody targeting programmed cell death protein 1 (PD-1).

Detailed description

Eligible patients will receive 4 cycles of Tafolecimab (300mg, sc, d1, Q3W) in combination with Sintilimab (200mg, iv, d1, Q3W), along with etoposide and either carboplatin (AUC 5 mg/mL/min) or cisplatin (75 mg/m2) administered intravenously on days 1, 2, and 3 of each 3-week cycle for up to 4 to 6 cycles. Subsequently, patients will receive maintenance therapy with Sintilimab and Tafolecimab until disease progression, the occurrence of intolerable toxicities, or the treatment duration reaches 2 years. If the investigator assesses potential evidence of clinical benefit, continuing treatment after disease progression is permitted. PRIMARY OBJECTIVES: I. To evaluate the progression-free survival (PFS) of Tafolecimab combined with Sintilimab and chemotherapy as first-line treatment regimens for patients with extensive-stage small cell lung cancer (ES-SCLC). SECONDARY OBJECTIVES: I. To evaluate the safety of of Tafolecimab combined with Sintilimab and chemotherapy as first-line treatment regimens for patients with ES-SCLC. II. To evaluate the PFS rate, objective response rate (ORR), disease control rate (DCR), duration of response (DOR), overall survival (OS) rate and OS of Tafolecimab combined with Sintilimab and chemotherapy as first-line treatment regimens for patients with ES-SCLC. TERTIARY OBJECTIVES: I. To evaluate whether Tafolecimab combined with Sintilimab and chemotherapy as first-line treatment for patients with ES-SCLC could upregulate the expression of MHC-I on SCLC tumor cells. II. To explore tissue and liquid biopsy biomarkers that may be predictive of response or primary resistance to Tafolecimab combined with Sintilimab and chemotherapy.

Interventions

Patients will receive Tafolecimab 300 mg every 3 weeks.

Patients will receive Sintilimab 200 mg every 3 weeks.

DRUGEtoposide

Patients will recieve Etoposide (100 mg/m2) intravenously on days 1, 2, and 3 of each 3-week cycle.

Patients will receive carboplatin (AUC 5 mg/mL/min) or cisplatin (75 mg/m2) intravenously on day 1 of each 3-week cycle for up to 4 to 6 cycles.

Sponsors

Second Affiliated Hospital, School of Medicine, Zhejiang University
Lead SponsorOTHER
Innovent Biologics, Inc.
CollaboratorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Tafolecimab combined with Sintilimab and Chemotherapy as the first-line treatment regimen

Eligibility

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

Inclusion criteria

Key Inclusion Criteria: * Age ≥18 years, ECOG performance status 0-1; * Histologically or cytologically confirmed extensive-stage small cell lung cancer (ES-SCLC) according to Veterans Administration Lung Study Group criteria; * Previously not receiving systemic treatment for ES-SCLC; * Greater than or equal to 1 measurable lesion exists according to RECIST v1.1; * Expected survival \>= 12 weeks; * Adequate organ system functions (no blood transfusion or component blood use within 14 days before testing). Key

Exclusion criteria

* Previously receiving systemic anti-tumor therapy for ES-SCLC; * Combined SCLC (mixed SCLC and NSCLC histological types) or transformed SCLC confirmed by histological or cytological examination; * Receiving other investigational drugs or participated in other interventional clinical studies within 4 weeks before signing the informed consent form; * Receiving systemic immunostimulant treatment within 4 weeks before enrollment; * Active central nervous system (CNS) metastases (asymptomatic patients with stable lesions allowed); * Severe cardiovascular disease; * Severe chronic/active infections requiring systemic antibacterial, antifungal or antiviral treatment within 2 weeks before enrollment; * Active hepatitis B virus (HBV)/ hepatitis C virus (HCV)/ human immunodeficiency virus (HIV) infection; * Active autoimmune diseases, a history of interstitial lung disease, or other uncontrolled systemic diseases; * Pregnancy or lactation; * Having a disease that requires systemic corticosteroids or other immunosuppressants to be treated within ≤14 days before enrollment; * Requiring at least monthly or more frequent drainage of pleural and/or pericardial or peritoneal effusion; * Using attenuated live vaccines, or planned to receive attenuated live vaccines within 28 days before enrollment; * Known to be allergic to Sintilimab or Tafolecimab or its excipients, having a history of severe allergic reaction to any monoclonal antibody, or having a history of allergy to cisplatin, carboplatin or etoposide; * Toxicity caused by previous anti-cancer treatment has not recovered to baseline or stable state at the time of enrollment; * Creatinine clearance rate \< 60 mL/min (cisplatin) or \< 45 mL/min (carboplatin) * Uncontrolled or symptomatic hypercalcemia.

Design outcomes

Primary

MeasureTime frameDescription
Progression-free Survival as Assessed by RECIST v1.1From enrollment to the end of treatment at 12 monthsProgression-free survival (PFS) refers to the period from the start of combined treatment until any objectively recorded tumor progression occurs or until the patient's death (for patients lost to follow-up, it is the last follow-up time; for patients still alive at the end of the study, it is the date of the follow-up termination) as assessed by RECIST v1.1.

Secondary

MeasureTime frameDescription
Objective Response Rate as Assessed by RECIST v1.1From enrollment to the end of treatment at 12 monthsObjective response rate (ORR) refers to the proportion of patients whose tumors have shrunk to a certain extent and maintained that state for a certain period of time, including cases of complete response (CR) and partial response (PR) as assessed by RECIST v1.1.
Progression-free Survival Rate as Assessed by RECISIT v1.1From enrollment to the end of treatment at 6 months and 12 months6-month and 12-month progression-free survival rate refers to the proportion of patients whose time from the start of treatment to any objectively recorded tumor progression or patient death is equal to or greater than 6 months and 12 months.
Overall Survival Rate as Assessed by RECISIT v1.1From enrollment to the end of treatment at 12 months and 24 months12-month and 24-month overall survival rate refers to the proportion of patients whose time from the first administration of the drug to any cause of death was greater than or equal to 12 months and 24 months.
Disease Control Rate as Assessed by RECISIT v1.1From enrollment to the end of treatment at 12 monthsDisease control rate refers to the proportion of patients whose tumors have shrunk to a certain extent and maintained that state for a certain period of time. It includes cases of complete response (CR), partial response (PR), and stable disease (SD).
Duration of Response as Assessed by RECISIT v1.1From enrollment to the end of treatment at 12 monthsDuration of response refers to the duration from the time when the patient's condition is first confirmed as response (CR or PR) until the first record of progressive disease (PD) or death due to any reason (whichever occurs first).
Percentage of Participants with Treatment-Related Adverse Events as Assessed by NCI-CTCAE v5.0From enrollment to the end of treatment at 12 months
Overall survival as Assessed by RECISIT v1.1From enrollment to the end of treatment at 24 monthsThe time period from the first administration of the drug until death due to any cause (for patients who were lost to follow-up, it is the last follow-up time; for patients who were still alive at the end of the study, it is the date of the follow-up conclusion).

Countries

China

Contacts

CONTACTYang Xia, MD, PhD
yxia@zju.edu.cn+8618868439669

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 24, 2026