1. SATURN: A double-blind, randomized, phase III study of maintenance erlotinib versus placebo following non-progression with 1st-line platinum-based chemotherapy in patients with advanced NSCLC

2. Rationale for Investigating Erlotinib In Maintenance Setting Adapted from: 1 Ciuleanu et al, 2008; 2 Fidias et al, 2009; 3 Shepherd et al, 2005; 4 Gatzemeier et al, 2007.

3. SATURN Study Design *Cisplatin/paclitaxel; cisplatin/gemcitabine; cisplatin/docetaxel; cisplatin/vinorelbine; carboplatin/gemcitabine; carboplatin/docetaxel; carboplatin/paclitaxel

4. Statistical Analyses

5. Baseline Characteristics

6. PFS*: All Patients (ITT) *PFS is measured from time of randomisation into the maintenance phase; assessments were every 6 weeks; ITT=intent-to-treat population

7. PFS*: EGFR IHC+ Tumours (co-primary end point) *PFS is measured from time of randomisation into the maintenance phase; assessments were every 6 weeks.

8. PFS Primary Analysis (ITT)

9. Best Overall Response *Stable disease ≥ 6 weeks.

10. Disease Control Rate ≥12 Weeks* *CR + PR + SD ≥12 weeks.

11. Subgroup Analysis of PFS

12. PFS According to Histology

13. PFS in EGFR Wild-type Tumours

14. PFS in EGFR Mutation+ tumours* *60% censored

15. Summary of Safety Data

16. Post-study Treatment

17. Conclusions