Neoadjuvant Therapy With Toripalimab and JS004 Combined With Etoposide and Platinum Chemotherapy for Limited-stage Small Cell Lung Cancer : A Single-arm, Phase 2 Trial
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.
• Life expectancy is at least 12 weeks.
• At least 1 measurable lesion according to RECIST 1.1.
• Patients with good function of other main organs (liver, kidney, blood system, etc.)
• Without systematic metastasis (including M1a, M1b and M1c);
• Expected to be completely resected
⁃ Patients with lung function can tolerate surgery
⁃ Fertile female patients must voluntarily use effective contraceptives not less than 120 days after chemotherapy or the last dose of toripalimab (whichever is later) during the study period, and urine or serum pregnancy test results within 7 days prior to enrollment are negative.
⁃ Unsterilized male patients must voluntarily use effective contraception during the study period not less than 120 days after chemotherapy or the last dose of toripalimab (whichever is later).