Original ArticlesChronic Nitrate Therapy in Patients with Angina with ComorbidityJansen, R.1; Cleophas, T.J.* 2; Zwinderman, A.H.3; Niemeijer, M.G.1 Author Information 1Martini Hospital, Groningen, The Netherlands 2European College of Pharmaceutical Medicine, Lyon, France 3Academic Medical Center, Amsterdam, The Netherlands Schwarz Pharma AG Germany provided financial support for the study. This study was presented at the 50th Annual World Assembly of the Ameriam College of Angiology, October 12–17,2003, Las Vegas, NV. The authors have no conflict of interest. *Address for correspondence: Albert Schweitzer Hospital, Box 316, 3300 AH Dordrecht, The Netherlands. E-mail: [email protected] American Journal of Therapeutics 13(3):p 188-191, May 2006. | DOI: 10.1097/01.mjt.0000149930.73851.4c Buy Metrics Abstract In a retrospective study from the Dutch Mononitrate Quality of Life (DUMQOL) Study Group, the authors found that patients with angina with concomitant diabetes or hypercholesterolemia derived more benefit from changing over to a once-daily nitrate treatment regimen than did patients without angina. The aim of this study was to assess this issue prospectively. In an open-label study, patients with stable angina pectoris from facilities in Germany, Portugal, and me Czech Republic were treated for 3 months with multiple daily doses and subsequently for 3 more months with once-daily isosorbide mononitrate/dinitrate. After the first and second 3-month periods, they were assessed by a validated QOL battery including domains for mobility, side effects, life satisfaction, anginal pain, and psychological distress. In the 1045 patients who participated in the study, the mean summary domain scores varied from 5 to 16 points and score improvements from 1.6 to 4.3 points. In the patients without concomitant hypertension and smokers, domain scores improved less than they did in the patients without, with differences in domain score improvements up to 1.0 points (P<0.001), which is substantial considering the range of improvement was between 1.6 and 4.3 points. In the patients with diabetes mellitus or hypercholesterolemia, a reverse pattern was observed with differences in domain score improvements up to 0.4 points (P<0.05). Patients with angina with diabetes or hypercholesterolemia derived more benefit from an asymmetric regimen of isosorbide mononitrate/dinitrate than did patients without. Patients with angina with hypertension and smokers benefited less. Differences in endothelial function may be involved. © 2006 Lippincott Williams & Wilkins, Inc.