Assessing Remote Confirmation of Type 1 Diabetes

This study is looking into a new, easier way to check if someone truly has Type 1 diabetes. Sometimes, it can be tricky for doctors to tell the difference between Type 1 and Type 2 diabetes in adults because the symptoms can be very similar. This matters a lot because if someone with Type 2 diabetes is mistakenly diagnosed with Type 1, they might end up taking insulin injections for their whole life, even if they don't need them, and they might miss out on treatments that are better suited for Type 2 diabetes.

To help get the diagnosis right, doctors can use a test called C-peptide. This test measures how much insulin your own body is still making. It's best done if you've had diabetes for more than three years, as insulin levels can be confusing in the early stages. While it's becoming standard to check C-peptide in hospitals, our current methods mean you often need to visit the hospital for a blood test from your arm. This can be time-consuming for patients and a lot of work for hospital staff, especially when trying to test many people.

That's where this study comes in. We've found a way to do the C-peptide test using just a tiny spot of blood from a finger-prick, much like how people check their blood sugar at home. The exciting part is that you can collect this sample yourself at home and post it back to the hospital. This means fewer hospital visits for you and makes it much simpler for hospitals to test a larger number of patients. If this home testing works well and is accepted by patients, it could mean that many more people with Type 1 diabetes in the UK could have their diagnosis confirmed easily.