For limited-stage small cell lung cancer (SCLC), neoadjuvant chemotherapy plus PD-1 antibody is recommended. However, most patients cannot achieve a complete pathological response (CPR). A new immunotherapeutic strategy is needed to achieve a higher CPR rate. JS004 is a new antibody targeting B and T lymphocyte attenuator (BTLA), which restrains immune cells\' function and leads to immune escape of tumor cells. The combination of PD-1 and BTLA antibodies has shown a good therapeutic effect in solid tumors. This trial aims to investigate the efficacy and safety of the therapeutic regimen of toripalimab and JS004 plus etoposide and platinum Chemotherapy in limited-stage SCLC.
The patient shall sign the Informed Consent Form.
Aged 18 ≥ years.
Histological or cytological diagnosis of SCLC by needle biopsy, and limited stage confirmed by imageological examinations (CT, PET-CT or EBUS).
Eastern Cooperative Oncology Group (ECOG) performance-status score of 0 or 1.
Participants who have received any systemic anti-cancer treatment for thymic epithelial tumor, including surgical treatment, local radiotherapy, cytotoxic drug treatment, targeted drug treatment and experimental treatment;
Patients with a malignancy other than SCLC within five years prior to the start of this trial;
Participants with any unstable systemic disease (including active infection, uncontrolled hypertension), unstable angina pectoris, angina pectoris starting in the last three months, congestive heart failure (>= NYHA) Grade II), myocardial infarction (6 months before admission), severe arrhythmia requiring drug treatment, liver, kidney or metabolic diseases;
With activate or suspectable autoimmune disease, or autoimmune paracancer syndrome requiring systemic treatment;