Study for Treatment of Patients With EGFR Mutant, T790M-negative NSCLC

A single arm open label multi-center Phase 2 study in which the pharmacokinetics, safety,
tolerability and efficacy of TH-4000 (Tarloxotinib) will be assessed in patients with EGFR
mutant, T790M negative advanced NSCLC. Patients must have demonstrated progression during
EGFR TKI therapy.

Hypoxia PET scans will be obtained in select centers to analyze potential predictors of
tumor response.

Key Eligibility Criteria:

- Eastern Cooperative Oncology Group (ECOG) performance status 0-1

- Confirmed recurrent Stage IV NSCLC which progressed while on treatment with EGFR TKI

- Measurable disease according to Response Evaluation Criteria in Solid Tumors version
1.1 (RECIST 1.1)

- Documented evidence of an EGFR mutation known to be associated with an EGFR TKI
sensitivity

- No T790M mutation or small cell transformation including an assessment from tumor
biopsy obtained while on or subsequent to the most recent EGFR TKI therapy

- Acceptable laboratory results as indicated by protocol

- Acceptable cardiac function as indicated by protocol

Key Exclusion Criteria:

- Receiving medication that prolongs QT interval, with a risk of causing Torsades de
Pointes (TdP) unless ECG meets inclusion criteria while on a stable dose of the
medication

- Family history of long QTc syndrome

- Symptomatic central nervous system (CNS) lesions

- Radiation therapy within 2 weeks prior to the first dose of study medication

- Major surgery within 4 weeks or minor surgery within 2 weeks prior to the first dose
of study medication

- Concurrent active malignancy requiring systemic treatment

- Any other serious uncontrolled medical disorders or psychological conditions that may
interfere with study conduct including but not limited to: clinically significant
active infection (e.g., tuberculosis, viral hepatitis, human immunodeficiency virus
[HIV]), recent (within 6 months) myocardial infarction or unstable angina, congestive
heart failure, poorly-controlled hypertension or diabetes, concurrent active
malignancy, or psychiatric condition that may interfere with the patient's ability to
follow study procedures

- Pregnant or breast-feeding