Retirement of former Qualified Investigator and lack of resources to complete study.

Positron Emission Tomography (PET) is a Nuclear Medicine procedure that uses positron emitting radiolabeled tracer molecules to visualize biological activity. The presence of hypoxia (low oxygen) is associated with poor prognosis in a variety of tumour types and treatment strategies targeting hypoxic cells have been developed. The PET tracer [18]F-FAZA can identify hypoxic areas, and changes in uptake during treatment may predict tumour response.

The proposed clinical trial will be a Phase I/II imaging, open label, single site study. In Phase I, one 18F-FAZA PET scan will be conducted in patients with known squamous cell carcinoma of the Head & Neck, SCLC, NSCLC, lymphoma, GGM, neuroendocrine tumours or renal cell carcinoma. In Phase II, three 18F-FAZA PET scans will be done on patients with the above tumours as follows: one pre-treatment, one mid course and one post-treatment.

Inclusion Criteria:

• Male or female greater than or equal to 16 years of age.
• If female of child-bearing potential and outside of the window of 10 days since the first day of the last menstrual period, a negative pregnancy test is required.
• Patients with known primary or suspected metastatic squamous cell carcinoma of the head and neck, non-small cell or small cell carcinoma of the lung, lymphoma, GBM (greater than or equal to 3 glioma), neuroendocrine tumours, or renal cell carcinoma with at least one lesion >1 cm in diameter.