- Screening Assessments: Eligible participants will undergo a screening evaluation where blood samples for full blood count, liver, thyroid function and anti-transglutaminase antibodies (with IgA levels if not done within previous 12 months) will be taken. Non-hypoglycaemia C-peptide, glucose and HbA1c will also be measured, and a urine pregnancy test in females of child-bearing potential will be performed.