Part A of this study will investigate the Maximum Tolerated Dose of Debio 0932 in combination with standard of care chemotherapy for the first- and second-line treatment of advanced NSCLC.

Part A of this study will determine the Maximum Tolerated Dose of Debio 0932 in combination with cisplatin/pemetrexed and cisplatin/gemcitabine in treatment-naïve patients with Stage IIIb or IV NSCLC, and with docetaxel in previously treated patients with Stage IIIb or IV NSCLC.

Escalating doses of Debio 0932 will be given to subsequent patients in combination with standard doses of these 3 background chemotherapies.

Inclusion Criteria:

• Diagnosis of NSCLC with confirmed squamous or non-squamous tumour histology, without known epidermal growth factor receptor (EGFR) mutation
• Advanced or metastatic disease (Stage IIIb or IV)
• Patients to be treated with cisplatin/gemcitabine or cisplatin/pemetrexed: No previous systemic treatment with chemotherapy, targeted therapy or investigational agents (except adjuvant therapy if > 6 months ago); Patients to be treated with docetaxel: ≥ 1 previous treatment with chemotherapy
• Measurable disease by the Response Evaluation Criteria in Solid Tumors (RECIST) criteria
• ECOG performance score 0-1
• Life expectancy ≥ 3 months
• Adequate bone marrow-, renal- and hepatic function
• LVEF ≥ 55% on cardiac ultrasound

Exclusion Criteria:

• Symptomatic brain metastases
• Gastro-intestinal disorders that could affect drug absorption (including, but not limited to, major abdominal surgery, significant bowel obstruction, ulcerative colitis, Crohn's disease)
• Concurrent treatment with any other systemic anti-cancer therapy
• Serious concomitant uncontrolled medical conditions