This is a phase II, non-randomized, open-label, multi-center study to evaluate the efficacy of neoadjuvant Sintilimab (PD-1 antibody) or combined with chemotherapy as first-line treatment in patients with stage III non-small cell lung cancer (NSCLC).
The patient shall sign the Informed Consent Form.
Aged 18 ≥ years.
Histological or cytological diagnosis of NSCLC by needle biopsy, and stage III confirmed by imageological examinations (CT, PET-CT or EBUS).
Eastern Cooperative Oncology Group (ECOG) performance-status score of 0 or 1.
Non-squamous cell carcinoma with EGFR active mutation positive or ALK rearrangement;
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;
Administration of any Chinese medicine against cancer before administration of the drug;
Participants with other cancer (excluding cervical carcinoma in situ, cured basal cell carcinoma, bladder epithelial tumor [including TA and tis]) within five years before the start of this study;
Single group
Sintilimab
DrugNeoadjuvant treatment stage: Sintilimab 200mg, q3w, i.v., 2-4 cycles, then receive chest CT evaluation. Surgery stage: the patients will receive radical surgery after the neoadjuvant treatment. Adjuvant treatment stage: according to the NCCN guidelines.
Chemotherapy
DrugNeoadjuvant treatment stage: Sintilimab 200mg, q3w, i.v., 2-4 cycles; platinum-based chemotherapy (Non-squamus: Carboplatin AUC 5 + Pemetrexed 500mg/m2; Squamous: Carboplatin AUC 5 + Gemcitabine 1000mg/m2 or Paclitaxel 200mg/m2) q3w, i.v., 2-4 cycles, then receive chest CT evaluation. Surgery stage: the patients will receive radical surgery after the neoadjuvant treatment. Adjuvant treatment stage: according to the NCCN guidelines.
Major pathologic response (MPR)
MPR is defined as the proportion of participants who have achieved major pathologic response (on routine hematoxylin and eosin staining, tumors with no more than 10% viable tumor cells) in all participants who have completed the neoadjuvant therapy before surgery
Objective response rate (ORR)
It refers to the proportion of patients who have had a complete response or partial response (according to RECIST1.1) as confirmed by CT evaluation after 3 weeks in all patients who have completed the neoadjuvant therapy.Only patients with measurable lesions at baseline will be analyzed.
Disease-free survival (DFS)
It refers to the time from radical surgery to relapse or death of a participant due to disease progression. In the case of a patient who still survives at the time of analysis, the latest evaluation date will be used for interpolation (censoring).
Progression-free survival (PFS)
It refers to the time from the first administration of drug in this study to the disease progression or death (including any cause of death in the case of no progression) as recorded in CRF, regardless of whether the patient exits from the treatment or receives other anti-cancer treatment before progression.
Overall survival (OS)
It is defined as the time from enrollment to death of participant due to any cause. In the case of a patient who still survives at the time of analysis, the date of last contact will be taken as the censoring date.
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