PMID- 21680997 OWN - NLM STAT- MEDLINE DCOM- 20110824 LR - 20181201 IS - 1941-9260 (Electronic) IS - 0032-5481 (Linking) VI - 123 IP - 4 DP - 2011 Jul TI - A comparison of the efficacy and safety of irbesartan/hydrochlorothiazide combination therapy with irbesartan monotherapy in the treatment of moderate or severe hypertension in diabetic and obese hypertensive patients: a post-hoc analysis review. PG - 126-34 LID - 10.3810/pgm.2011.07.2312 [doi] AB - Hypertension is difficult to treat in patients with type 2 diabetes mellitus (T2DM) or obesity. Combination therapies are often required to effectively lower blood pressure (BP) and attain BP goals. In this post-hoc analysis of 2 prospective, randomized, controlled studies in patients with uncontrolled or untreated moderate or severe hypertension, the efficacy and safety of treatment with irbesartan/hydrochlorothiazide (HCTZ) and irbesartan was assessed in 2 separate analyses: patients with diabetes (n=143) and by obesity status (n=1125). Patients received irbesartan/HCTZ (150 mg/12.5 mg titrated to 300 mg/25 mg) or irbesartan (150 mg titrated to 300 mg) for 7 (severe hypertension study) or 12 (moderate hypertension study) weeks. Efficacy comparisons between treatment groups were performed using Fisher's exact tests. After 7 to 8 weeks of treatment, systolic BP (SBP)/diastolic BP (DBP) decreased in patients with diabetes by 26.9/17.8 mm Hg and 21.8/15.8 mm Hg after irbesartan/HCTZ and irbesartan treatment, respectively (P [SBP]=0.09, P [DBP]=0.27). In obese patients (n=544), SBP/DBP decreased by 29.4/20.2 mm Hg and 20.1/15.9 mm Hg after irbesartan/HCTZ and irbesartan treatment, respectively (P<0.0001). More patients with T2DM reached the BP goal of <130/80 mm Hg at week 7 to 8 in the irbesartan/HCTZ group than in the irbesartan group (12% vs 5%), although not statistically significant (P=0.22). Significantly more obese patients reached their respective BP goals in the irbesartan/HCTZ group than in the irbesartan group (48% vs 23%; P<0.0001). Treatment-emergent adverse event rates were similar between treatment groups regardless of the presence of diabetes or body mass index (BMI) status. In patients with moderate or severe hypertension and with a BMI >/= 30 kg/m(2), initial treatment with irbesartan/HCTZ combination therapy was more effective than irbesartan monotherapy. FAU - Neutel, Joel M AU - Neutel JM AD - Orange County Research Center, Tustin, CA 92780, USA. jmneutel@aol.com LA - eng PT - Comparative Study PT - Journal Article PT - Multicenter Study PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PL - England TA - Postgrad Med JT - Postgraduate medicine JID - 0401147 RN - 0 (Antihypertensive Agents) RN - 0 (Biphenyl Compounds) RN - 0 (Tetrazoles) RN - 0J48LPH2TH (Hydrochlorothiazide) RN - J0E2756Z7N (Irbesartan) SB - IM MH - Antihypertensive Agents/administration & dosage/*therapeutic use MH - Biphenyl Compounds/administration & dosage/*therapeutic use MH - Diabetes Complications/*drug therapy MH - Diabetes Mellitus, Type 2/complications MH - Double-Blind Method MH - Drug Therapy, Combination MH - Female MH - Humans MH - Hydrochlorothiazide/administration & dosage/*therapeutic use MH - Hypertension/complications/*drug therapy MH - Irbesartan MH - Male MH - Middle Aged MH - Obesity/*complications MH - Tetrazoles/administration & dosage/*therapeutic use MH - Treatment Outcome EDAT- 2011/06/18 06:00 MHDA- 2011/08/25 06:00 CRDT- 2011/06/18 06:00 PHST- 2011/06/18 06:00 [entrez] PHST- 2011/06/18 06:00 [pubmed] PHST- 2011/08/25 06:00 [medline] AID - 10.3810/pgm.2011.07.2312 [doi] PST - ppublish SO - Postgrad Med. 2011 Jul;123(4):126-34. doi: 10.3810/pgm.2011.07.2312.