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Am J Med. 2009 Nov;122(11):1043-9. doi: 10.1016/j.amjmed.2008.12.026.

A(1c) control in a primary care setting: self-titrating an insulin analog pre-mix (INITIATEplus trial).

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Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.



To study glycemic control and hypoglycemia development upon initiation of insulin through a self-titration schedule in a 24-week trial, conducted with 4875 insulin-naïve patients with poorly controlled type 2 diabetes, predominantly in a primary care setting.


Subjects initiated twice-daily biphasic insulin aspart 70/30 with 6 units prebreakfast and 6 units presupper, self-titrating according to self-measured blood glucose values. Subjects were randomized (1:1:1) to telephone counseling provided by a registered dietician: no counseling (NC), 1 counseling session (1C), or 3 sessions (3C).


Mean baseline HbA(1c) (9.9% across groups) decreased approximately 2.5% to 7.49% + or - 1.48, 7.48% + or - 1.50, and 7.44% + or - 1.46 in the NC, 1C, and 3C groups, respectively. Within these groups, a hemoglobin A(1c) (HbA(1c)) value <7% was achieved by 40.2%, 41.6%, and 41.8% of subjects, respectively. Eight-point blood glucose profiles were substantially improved from baseline for all groups. Hypoglycemia was experienced by 10.2%-11.4% of the subjects in each group. Rates of minor and major hypoglycemia were low but decreased as dietary counseling increased (minor hypoglycemia: 56 vs 50 vs 45 episodes per 100 patient-years; major hypoglycemia, 9 vs 6 vs 4 episodes per 100 patient-years, for the NC vs 1C vs 3C groups, respectively; P <.001, 3C vs NC). Weight increased by 3.13, 3.40, and 2.88 kg for the NC, 1C, and 3C groups, respectively.


In the primary care setting, self-titration of biphasic insulin aspart 70/30 was effective in achieving recommended HbA(1c) goals even with minimal dietary counseling.

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