BACKGROUND: Lower socioeconomic status is associated with excess disease burden from diabetes. Diabetes self-management support interventions are needed that are effective in engaging lower income patients, addressing competing life priorities and barriers to selfcare, and facilitating behavior change. OBJECTIVE: To pilot test feasibility, acceptability, and effect on disease control of a problem-based diabetes self-management training adapted for low literacy and accessibility. DESIGN: Two-arm randomized controlled trial powered to detect a 0.50% change in A1C at follow-up with a 2-sided alpha of 0.05 in a pooled analysis. PARTICIPANTS: Fifty-six urban African-American patients with type 2 diabetes and suboptimal blood sugar, blood pressure, or cholesterol control recruited from a diabetes registry within a university-affiliated managed care organization. INTERVENTIONS: A group, problem-based diabetes self-management training designed for delivery in an intensive and a condensed program format. Three intensive and three condensed program groups were conducted during the trial. MAIN MEASURES: Clinical (A1C, systolic blood pressure [SBP], diastolic blood pressure [DBP], LDL and HDL cholesterol) and behavioral (knowledge, problem solving, self-management behavior) data were measured at baseline, post-intervention, and 3 months post-intervention (corresponding with 6-9 months following baseline). RESULTS: Adoption of both programs was high (>85% attendance rates, 95% retention). At 3 months postintervention, the between-group difference in A1C change was −0.72% (p =0.02), in favor of the intensive program. A1C reduction was partially mediated by problem-solving skill at follow-up (ß = −0.13, p=0.04). Intensive program patients demonstrated within-