A phase II, single-arm, open-label study that assesses feasibility, safety and efficacy of combined neoadjuvant chemotherapy and immunotherapy with PD-(L)1 inhibitor in stage I-IIIB NSCLC adult patients followed by adjuvant PD-(L)1 inhibitor treatment for up to 1 year

A phase II, single-arm, open-label study that assesses feasibility, safety and efficacy of combined neoadjuvant chemotherapy and immunotherapy with PD-1 inhibitor in stage I-IIIB NSCLC adult patients followed by adjuvant treatment for up to 1 year with PD-(L)1 inhibitor.

Two to three cycles of neoadjuvant chemotherapy in combination with PD-(L)1 inhibitor will be administered before surgery, followed by another one to two cycles of neoadjuvant chemotherapy in combination with PD-(L)1 inhibitor and PD-(L)1 inhibitor monotherapy for up to 1 year.

After completion of neoadjuvant therapy and before surgery, a tumor assessment will be done. Patients with stable disease or partial response may be considered for surgery.

The report imaging response and pathological response rate will be evaluated. Patients eligible for the trial are those with a histological diagnosis or cytologically proven operable and resectable non-small-cell lung cancer. The total number of patients to be included will be 60 from Chinese Academy of Medical Sciences (CAMS).

Accrual period of 2 years or until the inclusion of the last patient necessary to achieve the sample set in the protocol of 60 patients. After that all patients will be treated for up to 1 year with adjuvant immunotherapy and they will be followed during 3 years after adjuvant treatment.

Inclusion Criteria:

- 1.Histologically- or cytologically- documented NSCLC who present stage I (T≥4cm), IIA, IIB, IIIA, or IIIB disease, of either squamous or non-squamous histology.

2.Deemed surgically resectable by a thoracic surgeon 3.Age ≥ 18 years 4.Radiologically measurable disease, as defined by response evaluation criteria in solid tumours (RECIST) v1.1 5. Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1 6.Notified of the investigational nature of this study and signed a written informed consent in accordance with institutional and national guidelines.

Exclusion Criteria:

• 1. Carrying activating mutations in the TK domain of EGFR or any variety of alterations in the ALK gene or other mutations predicting hyperprogression of immunotherapy.

  2. Active, known or suspected autoimmune disease. 3.Other active malignancy requiring concurrent intervention or with previous malignancies (except non-melanoma skin cancers, and the following in situ cancers: bladder, gastric, colon, endometrial, cervical/dysplasia, melanoma, or breast).

  4.Prior treatment with anti-PD-1, anti-CTLA-4 (cytotoxic T lymphocyte-associated antigen (CTLA-4), or anti-PD-L1 therapeutic antibody or pathway-targeting agents 5.History of allergy to study drug components excipients