| E.1 Medical condition or disease under investigation | 
| E.1.1 | Medical condition(s) being investigated  | 
| Completely resected stage II-III NSCLC | 
 
 
 | 
| E.1.1.1 | Medical condition in easily understood language  | 
| Patients with NSCLC  who have minimal residual disease after surgery +/- additional therapy before or after surgery. | 
 
 
 | 
| E.1.1.2 | Therapeutic area  | Diseases [C] - Cancer [C04] | 
| MedDRA Classification | 
| E.1.2 Medical condition or disease under investigation | 
| E.1.2 | Version  | 21.1 | 
 
| E.1.2 | Level  | PT | 
 
| E.1.2 | Classification code  | 10061873 | 
 
| E.1.2 | Term  | Non-small cell lung cancer | 
 
| E.1.2 | System Organ Class  | 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps) | 
 
 
 | 
| E.1.3 | Condition being studied is a rare disease  |  No  | 
| E.2 Objective of the trial | 
| E.2.1 | Main objective of the trial  | 
| To assess the efficacy of durvalumab compared to placebo as measured by DFS (using Investigator assessment according to RECIST 1.1.) in the PD-L1 TC≥1% analysis set | 
 
 
 | 
| E.2.2 | Secondary objectives of the trial  | 
1.To assess the efficacy of durvalumab compared to placebo as measured by DFS in all randomized
 patients (using investigator assessment according to RECIST 1.1);
 2.To assess the efficacy of durvalumab compared to placebo as measured by DFS in the PD-L1 TC≥1% analysis set and in all randomized patients (using BICR assessment according to RECIST 1.1);
 3.To assess the efficacy of durvalumab compared to placebo on post-recurrence outcomes;
 4.To assess the efficacy of durvalumab compared to placebo as measured by OS in the PD-L1 TC≥1%
 analysis set and in all randomized patients;
 5.To assess patient-reported symptoms, functioning, and HRQoL in patients treated with durvalumab
 compared to placebo;
 6.To investigate the relationship between a patient’s baseline PD-L1 TC expression and efficacy of study treatments | 
 
 
 | 
| E.2.3 | Trial contains a sub-study  |  No  | 
| E.3 | Principal inclusion criteria  | 
1. Capable of giving signed informed consent, which includes a mandatory genetic informed consent and compliance with the requirements and restrictions listed in the informed consent forms (ICFs) and study protocol
 2. Age ≥18 years at the time of screening
 3. Diagnosis of histologically confirmed NSCLC (WHO 2015 classification) with resectable (stage II-III) disease 
 4. Complete resection of the primary NSCLC | 
 
 
 | 
| E.4 | Principal exclusion criteria | 
1.EGFR and/or ALK mutant as assessed either from the tumor biopsy taken prior to surgery or the resected tumor tissue. Testing must be performed using a well-validated, local regulatory approved test;
 2.Require re-resection or are deemed to have unresectable NSCLC by a multidisciplinary
 evaluation that must include a thoracic surgeon who perform lung cancer surgery as a
 significant part of their practice;
 3.History of allogeneic organ or bone marrow transplantation;
 4.Non-leukocyte-depleted whole blood transfusion in 120 days of genetic sample collection; | 
 
 
 | 
| E.5 End points | 
| E.5.1 | Primary end point(s) | 
| DFS in PD-L1 TC≥1% (using Investigator assessments according to RECIST 1.1) | 
 
 
 | 
| E.5.1.1 | Timepoint(s) of evaluation of this end point | 
 | 
| E.5.2 | Secondary end point(s) | 
1. DFS in FAS (using Investigator assessments according to RECIST 1.1)
 2. DFS (using BICR assessments according to RECIST 1.1) in PD-L1 TC≥1% and in FAS
 3. PFS (using local standard practice) 
 4. Time to first subsequent therapy (TFST) 
 5. Time to second subsequent therapy (TSST)
 6. OS in PD-L1 TC≥1% and in FAS
 7. Change from baseline and time to deterioration in EORTC QLQ-C30 and EORTC QLQ-LC13
 8. IHC analysis of PD-L1 TC expression and spatial distribution within the tumor microenvironment
 relative to efficacy outcomes (ie, DFS, OS) | 
 
 
 | 
| E.5.2.1 | Timepoint(s) of evaluation of this end point | 
 | 
| E.6 and E.7 Scope of the trial | 
| E.6 | Scope of the trial | 
| E.6.1 | Diagnosis |  Yes  | 
| E.6.2 | Prophylaxis |  No  | 
| E.6.3 | Therapy |  Yes  | 
| E.6.4 | Safety |  Yes  | 
| E.6.5 | Efficacy |  Yes  | 
| E.6.6 | Pharmacokinetic |  No  | 
| E.6.7 | Pharmacodynamic |  No  | 
| E.6.8 | Bioequivalence |  No  | 
| E.6.9 | Dose response |  No  | 
| E.6.10 | Pharmacogenetic |  No  | 
| E.6.11 | Pharmacogenomic |  No  | 
| E.6.12 | Pharmacoeconomic |  No  | 
| E.6.13 | Others |  No  | 
| E.7 | Trial type and phase | 
| E.7.1 | Human pharmacology (Phase I) |  No  | 
| E.7.1.1 | First administration to humans |  No  | 
| E.7.1.2 | Bioequivalence study |  No  | 
| E.7.1.3 | Other |  No  | 
| E.7.1.3.1 | Other trial type description |  | 
| E.7.2 | Therapeutic exploratory (Phase II) |  No  | 
| E.7.3 | Therapeutic confirmatory (Phase III) |  Yes  | 
| E.7.4 | Therapeutic use (Phase IV) |  No  | 
| E.8 Design of the trial | 
| E.8.1 | Controlled |  Yes  | 
| E.8.1.1 | Randomised |  Yes  | 
| E.8.1.2 | Open |  No  | 
| E.8.1.3 | Single blind |  No  | 
| E.8.1.4 | Double blind  |  Yes  | 
| E.8.1.5 | Parallel group |  Yes  | 
| E.8.1.6 | Cross over  |  No  | 
| E.8.1.7 | Other |  No  | 
| E.8.2 |  Comparator of controlled trial | 
| E.8.2.1 | Other medicinal product(s) |  No  | 
| E.8.2.2 | Placebo  |  Yes  | 
| E.8.2.3 | Other |  No  | 
| E.8.2.4 | Number of treatment arms in the trial | 2 | 
| E.8.3 | 
                                The trial involves single site in the Member State concerned
                             |  No  | 
| E.8.4 |  The trial involves multiple sites in the Member State concerned  |  Yes  | 
| E.8.4.1 | Number of sites anticipated in Member State concerned | 2 | 
| E.8.5 | The trial involves multiple Member States |  Yes  | 
| E.8.5.1 | Number of sites anticipated in the EEA | 78 | 
| E.8.6 Trial involving sites outside the EEA | 
| E.8.6.1 | Trial being conducted both within and outside the EEA |  Yes  | 
| E.8.6.2 | Trial being conducted completely outside of the EEA |  No  | 
| E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned | 
| Argentina | 
 
| Australia | 
 
| Brazil | 
 
| Hong Kong | 
 
| India | 
 
| Israel | 
 
| Japan | 
 
| Peru | 
 
| Taiwan | 
 
| United States | 
 
| Viet Nam | 
 
| France | 
 
| Sweden | 
 
| Bulgaria | 
 
| Netherlands | 
 
| Romania | 
 
| Spain | 
 
| Switzerland | 
 
| Czechia | 
 
| Germany | 
 
| Italy | 
 
| Belgium | 
 
| Denmark | 
 
| Hungary | 
 
| Russian Federation | 
 
| Turkey | 
 
 
 | 
| E.8.7 | Trial has a data monitoring committee |  Yes  | 
| E.8.8 | 
                        Definition of the end of the trial and justification where it is not the last
                        visit of the last subject undergoing the trial
                     | 
| The end of study is defined as the last expected visit/contact of the last subject undergoing the study. | 
 
 
 | 
| E.8.9 Initial estimate of the duration of the trial | 
| E.8.9.1 | In the Member State concerned years | 6 | 
| E.8.9.1 | In the Member State concerned months | 6 | 
| E.8.9.1 | In the Member State concerned days |  | 
| E.8.9.2 | In all countries concerned by the trial years | 6 |