PMID- 20469975 OWN - NLM STAT- MEDLINE DCOM- 20100928 LR - 20221207 IS - 1473-4877 (Electronic) IS - 0300-7995 (Linking) VI - 26 IP - 7 DP - 2010 Jul TI - Efficacy and safety of a single-pill combination of amlodipine/valsartan in Asian hypertensive patients inadequately controlled with amlodipine monotherapy. PG - 1705-13 LID - 10.1185/03007995.2010.487391 [doi] AB - OBJECTIVE: The antihypertensive efficacy of amlodipine/valsartan combination has not been evaluated in Asian patients as previous large-scale studies enrolled very few patients. This multicentre, randomised, double-blind study assessed the efficacy and safety of a single-pill combination of amlodipine/valsartan versus amlodipine in Asian hypertensive patients. METHODS: After a 1-4-week washout period, patients (mean sitting diastolic BP [msDBP]: >or=95-<110 mmHg) were treated with amlodipine 5 mg for 4 weeks. Patients inadequately controlled on amlodipine (msDBP >or=90 and <110 mmHg) were randomised to receive amlodipine/valsartan 5/80 mg (n = 349) or amlodipine 5 mg (n = 349) for 8 weeks. Efficacy variables were change in msDBP, mean sitting systolic BP (msSBP) from baseline (at randomisation) to week 8 endpoint, and BP control rate (<140/90 mmHg) at week 8 endpoint. Safety assessments included monitoring and recording of adverse events (AEs). RESULTS: Baseline characteristics were comparable between the groups. Most patients were Chinese (86.4%), men (65.1%), with a baseline BP 139.5/94.5 mmHg. At week 8 endpoint, the least square mean reduction in BP was significantly greater with amlodipine/valsartan combination than amlodipine monotherapy (-11.4/-9.7 vs. -7.4/-7.1 mmHg; p < 0.0001) with a higher BP control rate (69.2 vs. 57.6%; p = 0.0013). Ambulatory BP monitoring in a subgroup of patients (n = 82), showed a significant 24-h mean BP reduction from baseline with amlodipine/valsartan (-7.3/-6.3 mmHg; p < 0.0001), whereas the reduction was not significant with amlodipine (-0.2/+0.3 mmHg; p > 0.05). The overall incidence of AEs was similar in both groups. Peripheral oedema occurred only in the amlodipine group n = 4 (1.1%) and not in the amlodipine/valsartan combination. Hypotension was reported in only one patient in the amlodipine/valsartan combination. Six patients (0.9%) experienced serious AEs, of which only one SAE, i.e. gastric ulcer, was reported to be related to amlodipine treatment. CONCLUSION: The single-pill combination of amlodipine/valsartan was efficacious and well-tolerated in Asian hypertensive patients who were inadequately controlled on amlodipine alone. As with all clinical trials, the entry criteria may limit the extrapolation of these results to a broader population. ClinicalTrials.gov Identifier: NCT00413049. FAU - Ke, YuanNan AU - Ke Y AD - China-Japan Friendship Hospital, Beijing, China. FAU - Zhu, DingLiang AU - Zhu D FAU - Hong, HuaShan AU - Hong H FAU - Zhu, JunRen AU - Zhu J FAU - Wang, RuoNan AU - Wang R FAU - Cardenas, Pamela AU - Cardenas P FAU - Zhang, Ying AU - Zhang Y LA - eng SI - ClinicalTrials.gov/NCT00413049 PT - Journal Article PT - Multicenter Study PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PL - England TA - Curr Med Res Opin JT - Current medical research and opinion JID - 0351014 RN - 0 (Antihypertensive Agents) RN - 0 (Drug Combinations) RN - 0 (Tablets) RN - 0 (Tetrazoles) RN - 1J444QC288 (Amlodipine) RN - 80M03YXJ7I (Valsartan) RN - HG18B9YRS7 (Valine) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Aged, 80 and over MH - Algorithms MH - Amlodipine/*administration & dosage/adverse effects MH - Antihypertensive Agents/administration & dosage/adverse effects MH - Asian People MH - Double-Blind Method MH - Drug Combinations MH - Drug Resistance/drug effects MH - Female MH - Humans MH - Hypertension/*drug therapy MH - Male MH - Middle Aged MH - Tablets MH - Tetrazoles/*administration & dosage MH - Treatment Outcome MH - Valine/administration & dosage/*analogs & derivatives MH - Valsartan MH - Young Adult EDAT- 2010/05/18 06:00 MHDA- 2010/09/30 06:00 CRDT- 2010/05/18 06:00 PHST- 2010/05/18 06:00 [entrez] PHST- 2010/05/18 06:00 [pubmed] PHST- 2010/09/30 06:00 [medline] AID - 10.1185/03007995.2010.487391 [doi] PST - ppublish SO - Curr Med Res Opin. 2010 Jul;26(7):1705-13. doi: 10.1185/03007995.2010.487391.