To the Editor: Dr Couri and colleagues1 provided a follow-up study of patients with newly diagnosed type 1 diabetes mellitus treated with autologous nonmyeloablative hematopoietic stem cell transplantation. The authors noted that 160 patients were screened, but only 23 were enrolled. To further evaluate the possible generalizability of these findings, it would be helpful to know why screened patients were not eligible and why eligible patients elected not to participate.
Gitelman SE, Haller MJ, Schatz D. Autologous Nonmyeloablative Hematopoietic Stem Cell Transplantation in Newly Diagnosed Type 1 Diabetes Mellitus. JAMA. 2009;302(6):624-625. doi:10.1001/jama.2009.1098