A Prospective Noninterventional, Observational Study to Describe the Effectiveness and Safety of Trandolapril and Verapamil Single-Pill Combination in the Management of Patients with Hypertension and Type 2 Diabetes Mellitus: A Harvest TR Study

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ATALAR E., Eskin F., Tugtekin H. B., Karabulut A., Kanyilmaz S., Kirbiyik H., ...More

BIOMED RESEARCH INTERNATIONAL, vol.2020, 2020 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 2020
  • Publication Date: 2020
  • Doi Number: 10.1155/2020/2123601
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Agricultural & Environmental Science Database, BIOSIS, Biotechnology Research Abstracts, CAB Abstracts, CINAHL, Communication Abstracts, EMBASE, MEDLINE, Metadex, Veterinary Science Database, Directory of Open Access Journals, Civil Engineering Abstracts
  • Hacettepe University Affiliated: Yes


Maintaining regular blood pressure control usually requires multidrug regimens rather than monotherapy. The objective of this study was to describe the effectiveness and safety of an angiotensin-converting enzyme inhibitor and a nondihydropyridine calcium channel blocker in a single-tablet combination in patients with hypertension, a heart rate higher than 70 beats/min, and type 2 diabetes mellitus (T2DM). This study was conducted in Turkey as a prospective, noninterventional, observational study. At 22 clinical sites, the data of 200 patients with hypertension were used for efficacy analysis; however, 262 patients received at least one dose of trandolapril/verapamil fixed-dose combination at two dose strengths. Systolic blood pressure (SBP), diastolic blood pressure (DBP), heart rate, PR interval, glycated haemoglobin (HbA1c), and albumin/creatinine ratios were recorded during 8 weeks of treatment. With treatment, the mean (+/- SD) SBP that was recorded as 162.8 (+/- 14.642) mm Hg at baseline was reduced to131.7 +/- 11.1 mm Hg at week 8 (p<0.05). Similarly, the mean DBP was reduced from93.76 +/- 9.16 mm Hg to77.6 +/- 7.6 mm Hg (p<0.001). Following 8 weeks of treatment, SBP and DBP values were reduced below 140 mm Hg and 90 mm Hg in most patients (81.5%), respectively. The mean heart rate as evaluated using electrocardiography measurements was reduced to 78.25 beats/min at week 8 as compared with baseline during trandolapril/verapamil single-pill combination treatment (p<0.001). Treatment with trandolapril and verapamil was well tolerated over 8 weeks with no unexpected safety signals. In conclusion, the single-pill combination of trandolapril and verapamil was considered effective in reducing and controlling blood pressure in patients with hypertension and T2DM. There was a significant improvement in HbA1c and ACR levels in a smaller subgroup of the patient cohort. The trandolapril/verapamil combination was evaluated as being safe and well-tolerated following a treatment period of 8 weeks. This trial was registered with NCT02298556.