Human insulin: a double-blind clinical study of its effectiveness.

Over a two-year period, 88 patients were evaluated in a double-blind study of human insulin (recombinant DNA origin) and Iletin II pork insulin. Patient follow-up was done throughout the program by glycohemoglobin assays and self-monitoring of blood glucose levels. The C peptides were studied before and after a test meal of Sustacal. Insulin antibody determinations were made regularly. Dietary management was supervised throughout the study.