A study looking at 2 different scans to diagnose lung cancer (SPUTNIK)

The study will recruit 375 people in the UK. Everybody taking part has both a dynamic CT scan and a PET scan. You would have a PET scan as part of your standard care whether or not you take part in the study.

If you agree to take part, you have both scans either on the same day, or within 3 weeks of each other.

When you have the dynamic CT scan, you have an injection of iodine into a vein. The scan then takes about 5 minutes.

You may have more CT scans 3 months, 9 months and 2 years later. You may also have biopsies. This is part of standard care, but the study team will record the results of any scans and biopsies you have. The study team will ask if they can look at your medical records during the next 2 years.

They will also ask you to take part in a sub study to help them identify symptoms of lung disease. You don’t have to join this study if you don’t want to, you can still take part in the main study.

If you agree to join the sub study, you fill out a questionnaire about your health and any symptoms you have. It takes about 30 minutes. You can leave the completed questionnaire at the clinic or post it back in a pre-paid envelope.