PMID- 11413085 OWN - NLM STAT- MEDLINE DCOM- 20010719 LR - 20190623 IS - 1524-4539 (Electronic) IS - 0009-7322 (Linking) VI - 103 IP - 24 DP - 2001 Jun 19 TI - Differential effects of nifedipine and co-amilozide on the progression of early carotid wall changes. PG - 2949-54 AB - BACKGROUND: Common carotid artery intima-media thickness (IMT) progression was compared between 4 years of treatment with nifedipine and diuretic. METHODS AND RESULTS: This study, ancillary to the International Nifedipine GITS Study: Intervention as a Goal in Hypertension Treatment (INSIGHT), involved nifedipine 30 mg or co-amilozide (hydrochlorothiazide 25 mg and amiloride 2.5 mg) with optional subsequent titration. Among 439 randomized hypertensive patients, 324 had >/=1 year of follow-up (intent-to-treat group), and 242 completed follow-up (until-end-of-study group). Ultrasonography was performed at baseline, 4 months later, and then every year. Central computerized reading provided far-wall IMT, diameter, and cross-sectional area IMT (CSA-IMT). The primary outcome was IMT progression rate (slope of IMT-time regression). Secondary outcomes were changes from baseline (Delta) in IMT, diameter, and CSA-IMT. In the until-end-of-study population, between-treatment differences existed in IMT progression rate (P=0.002), Delta IMT (P=0.001), and Delta CSA-IMT (P=0.006), because IMT progressed on co-amilozide but not on nifedipine. In the intent-to-treat population, treatment differences existed in Delta IMT (P=0.004) and Delta CSA-IMT (P=0.04) but not in IMT progression rate (P=0.09). Patients with >/=2, 3, or 4 years of follow-up showed treatment differences in IMT progression rate (P=0.04, 0.004, 0.007, respectively), Delta IMT (P=0.005, 0.001, 0.005), and Delta CSA-IMT (P=0.025, 0.013, 0.015). Diameter decreased more on co-amilozide than on nifedipine in the intent-to-treat population (P<0.05), whereas blood pressure decreased similarly on both treatments. CONCLUSIONS: A difference in early carotid wall changes is shown between 2 equally effective antihypertensive treatments. FAU - Simon, A AU - Simon A AD - Centre de Medecine Preventive Cardiovasculaire, Hopital Broussais, Paris, France. alain.simon@brs.ap-hop-paris.fr FAU - Gariepy, J AU - Gariepy J FAU - Moyse, D AU - Moyse D FAU - Levenson, J AU - Levenson J LA - eng PT - Clinical Trial PT - Comparative Study PT - Journal Article PT - Multicenter Study PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PL - United States TA - Circulation JT - Circulation JID - 0147763 RN - 0 (Antihypertensive Agents) RN - 0 (Diuretics) RN - 0 (Drug Combinations) RN - 0 (Vasodilator Agents) RN - 0J48LPH2TH (Hydrochlorothiazide) RN - 50VV3VW0TI (Atenolol) RN - 68529-45-3 (amiloride, hydrochlorothiazide drug combination) RN - 69PN84IO1A (Enalapril) RN - 7DZO8EB0Z3 (Amiloride) RN - I9ZF7L6G2L (Nifedipine) SB - IM MH - Aged MH - Aged, 80 and over MH - Amiloride/*therapeutic use MH - Antihypertensive Agents/therapeutic use MH - Atenolol/therapeutic use MH - Blood Pressure/drug effects MH - Carotid Artery, Common/diagnostic imaging/*drug effects/pathology MH - Carotid Stenosis/complications/*diagnosis/pathology MH - Disease Progression MH - Diuretics/*therapeutic use MH - Dose-Response Relationship, Drug MH - Drug Combinations MH - Drug Therapy, Combination MH - Enalapril/therapeutic use MH - Female MH - Follow-Up Studies MH - France MH - Humans MH - Hydrochlorothiazide/*therapeutic use MH - Hypertension/complications/*drug therapy MH - Male MH - Middle Aged MH - Nifedipine/*therapeutic use MH - Risk Factors MH - Treatment Outcome MH - Ultrasonography MH - Vasodilator Agents/therapeutic use EDAT- 2001/06/20 10:00 MHDA- 2001/07/20 10:01 CRDT- 2001/06/20 10:00 PHST- 2001/06/20 10:00 [pubmed] PHST- 2001/07/20 10:01 [medline] PHST- 2001/06/20 10:00 [entrez] AID - 10.1161/01.cir.103.24.2949 [doi] PST - ppublish SO - Circulation. 2001 Jun 19;103(24):2949-54. doi: 10.1161/01.cir.103.24.2949.