[Immunologic studies with fully synthetic human insulin in patients with diabetes mellitus].

A group of 12 diabetic patients with insulin allergy previously documented by positive skin tests have been investigated with insulin of bovine, porcine and human origin and with a synthetic human insulin (CGP 12 831). In 3 patients clearly positive skin tests were found even against CGP 12 831. In lymphocyte transformation tests performed in these 3 cases, an increase of 3H-thymidine uptake was found when Actrapid was added. No increase was observed when CGP 12 831 was added.