A retrospective, multi-centre, observational study to describe the treatment patterns, the demographic, clinical outcomes, treatment effectiveness, and healthcare resource utilization (HCRU) for patients diagnosed with primary Small Cell Lung Cancer SCLC (Extensive stage & Limited Stage)and stage III NSCLC in a real-world setting.

A retrospective, multi-centre, observational study to describe the treatment patterns, the demographic, clinical outcomes, treatment effectiveness, and healthcare resource utilization (HCRU) for patients diagnosed with primary Small Cell Lung Cancer SCLC (Extensive stage & Limited Stage)and stage III NSCLC in a real-world setting

Cohort of patients diagnosed with primary SCLC (limited or extensive stage) or stage III NSCLC, aims to characterize the treatment patterns from the index date (defined as the date of initial diagnosis of locally advanced stage III NSCLC and SCLC) to the end of follow-up (defined as the earliest of death, last available medical record or end of the observation period "defined as the date of data abstraction") including the type of treatment received, duration of each treatment regimen, and reasons for stopping treatment regimen.

The study population will be identified by participating physicians involved in the diagnosis, treatment and management of these patients through the review of established patient medical records. Eligible patients (both alive and deceased) will have their data anonymously abstracted from their medical records into a centrally designed electronic case report form (eCRF).

Inclusion Criteria:

• 1. Adult male or female (≥18 years old or according to the age of majority as defined by local regulations).

  2. First-ever diagnosis of lung cancer (absence of previous diagnosis of lung cancer, including SCLC and NSCLC) in the patient's medical records.

  3. Patients either diagnosed with a primary diagnosis of SCLC (extensive or limited) or stage III NSCLC, confirmed by pathology, between 1st of January 2015 and 31st of December 2019.

  4. Medical records available at the participating site reflect at least nine months of follow-up from the index date (unless the patient died within the first nine months of diagnosis)

Exclusion Criteria:

• 1. Patients with concomitant cancer at the time of diagnosis other than SCLC or stage III NSCLC, except for non-metastatic non-melanoma skin cancers, or in situ or benign neoplasms. Cancer will be considered concomitant if it occurs within five years of NSCLC or SCLC diagnosis 2. Patients initially diagnosed with stage I to II NSCLC who have progressed to stage III 3. Current or prior use of "Durvalumab" treatment

patients who were diagnosed with primary Small Cell Lung Cancer (Extensive stage & Limited Stage) or stage III Non-Small Cell Lung Cancer

Qualified researchers can request access to anonymized individual patient-level data from AstraZeneca group of companies sponsored clinical trials via the request portal.

All request will be evaluated as per the AZ disclosure commitment:

https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure. Yes, indicates that AZ are accepting requests for IPD, but this does not mean all requests will be shared.

AstraZeneca will meet or exceed data availability as per the commitments made to the EFPIA Pharma Data Sharing Principles. For details of our timelines, please rerefer to our disclosure commitment at https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure.

When a request has been approved AstraZeneca will provide access to the deidentified individual patient-level data in an approved sponsored tool . Signed Data Sharing Agreement (non-negotiable contract for data accessors) must be in place before accessing requested information. Additionally, all users will need to accept the terms and conditions of the SAS MSE to gain access. For additional details, please review the Disclosure Statements at https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure.