 Gemcitabinecarboplatin chemotherapy will be continued for 4-6 cycles unless there is evidence of unacceptable toxicity, disease progression, or if the patient requests that study treatment be discontinued or to be withdrawn from the study. If chemotherapy is discontinued prior to disease progression, patients in the combination arm should be continued on Apatorsen OGX-427 single agent therapy until disease progression unless there is evidence of unacceptable toxicity, patient withdrawal of consent or termination of the study, whichever occurs first. All patients will be followed for disease progression. Tumour evaluations will be performed before the initiation of treatment and every 6 weeks during and after completion of chemotherapy. Once disease progression is documented, patients will enter a Survival Follow-up Period during which data will be collected every two months regarding further cancer therapy, secondary malignancy and survival status. The study will also assess the relationship between the anticipated anti-tumour activity of the treatment regimen and biological characteristics of patients tumours at baseline. 