TAURAS - T790 AURA ScreenFailure SOC Registry Study

The study design is an observational prospective cohort study. The study plans to enroll
approximately 400 patients from an estimated 17 countries.

Patients will be recruited from the patient pool that is being screened for the AZD9291
AURA3 randomized clinical trial (RCT). Biopsy tissues and consents have already been
obtained from patients to use samples for future research as part of the AURA3 trial
screening processes. During the RCT screening process, the patients sign a full consent to
participate in the AURA3 trial, and have their tumour tested as part of the main screening.

Data are collected, notably on medical history, co-medications, and adverse events. Biopsy
tissue is collected to assess T790M mutation status. All patients will be able to enter the
TAURAS study regardless of whether or not they have any remaining tissue. Biomarker analyses
resulting from the historical tumour samples obtained as part of the AURA3 screening
process, and in accordance with the consent obtained within the AURA3 trial protocol, can be
linked to the data collected in TAURAS and used as part of the exploratory objectives of
this NIS.

The primary objectives of the NIS study in NSCLC patients who have progressed on a previous
EGFR-TKI (with no intervening chemotherapy) and who do not harbour the T790M mutation
(according to central analysis using the Roche cobas® EGFR Mutation Test), are:

- To estimate overall survival

- To estimate disease progression (as assessed and defined by physician)

- To estimate partial, complete, and overall response rates by line of therapy (as
assessed and defined by physician)

- To describe treatment patterns for 2nd line and beyond, including time on treatment by
line of therapy and time to subsequent therapies (or death)

- To describe health resource utilization patterns (e.g., hospitalizations, emergency
room visits)

- To capture patient reported symptoms, functioning and health-related quality of life
(HRQoL) data using European Organization for Research and Treatment of Cancer Quality
of Life Questionnaire - Core 30 items (EORTC QLQ-C30), and European Organisation for
Research and Treatment of Cancer Quality of Life Questionnaire - Lung Cancer 13 items
(EORTC QLQ-LC13)

- To capture health state utilities using the EQ-5D-5L questionnaire

Inclusion Criteria:

1. Provision of informed consent from the patient or next-of-kin for deceased patient at
study entry, where this is mandated/allowed by local regulations

2. Aged at least 18 years. Patients from Japan aged at least 20 years

3. Patients who have been considered ineligible for entry into the AZD9291 AURA3
registration trial as a result of their tumour not harbouring the T790M mutation,
according to the cobas EGFR test of a biopsy taken following the latest line of
therapy, at a central testing lab participating in the D5160C00003 (AURA3) study.

4. Patients who have undertaken or plan to undertake 2nd-line therapy after screen
failure for the AURA3 study.

Exclusion Criteria:

1. Treatment with any of the following:

- Prior treatment with more than one line of systemic treatment for advanced
disease prior to failing screening assessments for AURA3.

- Major surgery (excluding placement of vascular access) within 4 weeks prior to
failing screening assessments for AURA3.

- Palliative radiotherapy with a limited field of radiation within 1 week prior to
enrolment, with the exception of patients receiving radiation to more than 30%
of the bone marrow or with a wide field of radiation which must be completed
within 4 weeks prior to failing screening assessments for AURA3..

2. Spinal cord compression or brain metastases unless asymptomatic, stable and not
requiring steroids for at least 4 weeks prior to failing screening assessments for
AURA3..

3. Involvement in the planning and conduct of the study (applies to AstraZeneca staff or
staff at the study site).

4. Judgment by the physician that the patient should not participate in the study if the
patient is unlikely to comply with study procedures, restrictions and requirements.

5. Patients who are known to be entering an interventional clinical study (blinded,
randomized or open label clinical study) at the time of the enrolment into this
study. However, inclusion in this study does not preclude participation in any other
clinical study after enrolment. Patients who participate in clinical studies after
enrolment into this study will be followed up to the extent possible as permitted by
the sponsor of that clinical study.

6. Patients with an invalid or unsuccessful T790M mutation test result during screening
for AURA3.