• Barry L Carter, Gail Ardery, Jeffrey D Dawson, Paul A James, George R Bergus, William R Doucette, Elizabeth A Chrischilles, Carrie L Franciscus, and Yinghui Xu.
• Department of Pharmacy Practice and Science, College of Pharmacy, University of Iowa, Room 527, Iowa City, IA 52242, USA. barry-carter@uiowa.edu
• Arch Intern Med. 2009 Nov 23; 169 (21): 1996-2002.

BackgroundStudies have demonstrated that blood pressure (BP) control can be improved when clinical pharmacists assist with patient management. The objective of this study was to evaluate if a physician and pharmacist collaborative model in community-based medical offices could improve BP control.MethodsThis was a prospective, cluster randomized, controlled clinical trial with clinics randomized to a control group (n = 3) or to an intervention group (n = 3). The study enrolled 402 patients (mean age, 58.3 years) with uncontrolled hypertension. Clinical pharmacists made drug therapy recommendations to physicians based on national guidelines. Research nurses performed BP measurements and 24-hour BP monitoring.ResultsThe mean (SD) guideline adherence scores increased from 49.4 (19.3) at baseline to 53.4 (18.1) at 6 months (8.1% increase) in the control group and from 40.4 (22.6) at baseline to 62.8 (13.5) at 6 months (55.4% increase) in the intervention group (P = .09 for adjusted between-group comparison). The mean BP decreased 6.8/4.5 mm Hg in the control group and 20.7/9.7 mm Hg in the intervention group (P < .05 for between-group systolic BP comparison). The adjusted difference in systolic BP was -12.0 (95% confidence interval [CI], -24.0 to 0.0) mm Hg, while the adjusted difference in diastolic BP was -1.8 (95% CI, -11.9 to 8.3) mm Hg. The 24-hour BP levels showed similar effect sizes. Blood pressure was controlled in 29.9% of patients in the control group and in 63.9% of patients in the intervention group (adjusted odds ratio, 3.2; 95% CI, 2.0-5.1; P < .001).ConclusionsA physician and pharmacist collaborative intervention achieved significantly better mean BP and overall BP control rates compared with a control group. Additional research should be conducted to evaluate efficient strategies to implement team-based chronic disease management.Trial Registrationclinicaltrials.gov Identifier: NCT00201019.

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