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• W2530890860 abstract "HomeHypertensionVol. 44, No. 2Trial of Preventing Hypertension (TROPHY) Free AccessEditorialPDF/EPUBAboutView PDFView EPUBSections ToolsAdd to favoritesDownload citationsTrack citationsPermissions ShareShare onFacebookTwitterLinked InMendeleyReddit Jump toFree AccessEditorialPDF/EPUBTrial of Preventing Hypertension (TROPHY)Design and 2-Year Progress Report Norman M. Kaplan Norman M. KaplanNorman M. Kaplan From the University of Texas Southwestern Medical Center, Dallas. Search for more papers by this author Originally published12 Jul 2004https://doi.org/10.1161/01.HYP.0000136909.14661.7cHypertension. 2004;44:125–126Other version(s) of this articleYou are viewing the most recent version of this article. Previous versions: July 12, 2004: Previous Version 1 The article “Trial of Preventing Hypertension (TROPHY): Design and 2-Year Progress Report” by Stevo Julius et al in this issue of Hypertension1 provides assurance that this ground-breaking trial will likely be successful in providing the first evidence in humans of the ability to delay, if not stop, the development of hypertension by the use of an antihypertensive drug.To their credit, the investigators obtained financial support from the pharmaceutical marketer of an angiotensin II-receptor blocker, an appropriate choice in view of the cited animal data on the particular ability of angiotensin-converting enzyme (ACE) inhibitors to prevent hypertension in susceptible rats. They carefully selected 809 middle-aged subjects at 71 study centers. The subjects had “high-normal” BP (ie, 130 to 139 systolic or 85 to 89 diastolic) and were, as expected, moderately overweight (body mass index=29.9±5.3).The protocol randomly allocated the subjects to take either active therapy with candesartan 16 mg/day or placebo for 2 years, followed by another 2 years of only placebo for both groups. The end point is the development of clinical hypertension (ie, BP above 140/90 mm|Hg anytime during the entire 4 years). As they explain, this prolonged placebo-follow-up should obviate problems of interpretation of changes during or immediately after active therapy. The study was able to enroll fewer patients than projected for adequate statistical power, but the likelihood for a successful conclusion is buttressed by a lower rate of dropout and a higher rate of clinical hypertension in those who were enrolled.The authors shrewdly propose a number of possible outcomes and have prepared to analyze the data “to ensure a priori objectivity at the conclusion of the study.”In reviewing the entry and 2-year data (which do not identify which group the hypertensives are in), one rather small surprise is noted: the home-recorded blood pressures were almost identical to the clinic-recorded pressures (ie, there was virtually no “white-coat effect”). Perhaps the 1-week period of home recordings was not long enough to overcome the tendency for home readings to be higher at first and to then become lower.Potential Value of the TrialAs the seventh report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure (JNC-7)2 clearly notes, blood pressures >120/80 but still <140/90 are associated with enough risk to call them “prehypertensive.” JNC-7 recommends only the use of appropriate lifestyle changes in those patients to prevent further progression.This conversion from the term “high-normal” to “prehypertensive” has caused consternation among some experts3 who are concerned that the label may engender additional expenses and anxiety, well known to be a cause of symptoms in newly diagnosed hypertensives.4 Moreover, the 2003 European5 and the 2004 British6 guidelines continue to classify patients with blood pressures of 130 to 139/85 to 89 mm|Hg as high-normal.Recalling the bell-shaped curve of blood pressure in the population, the largest group of people will be those with blood pressures in the prehypertensive range. Whereas all agree that lifestyle changes are most appropriate for them, as Julius et al1 note obesity and physical inactivity are rapidly increasing worldwide and it seems unlikely that lifestyle changes alone will keep this multitude from progressing into overt clinical hypertension.Therefore, the audacity of Julius et al in crossing the border into active drug therapy is to be applauded. As they conclude: “The TROPHY study seeks only the proof of principle that early pharmacological treatment of prehypertension might delay or prevent development of clinical (stage 1) hypertension.” If TROPHY shows such delay or prevention, further studies, larger and longer, will obviously been needed.Some may argue that, in view of the woeful inadequacy of current therapy to adequately control those with overt and high-risk hypertension, it is foolish to go after many millions more. But, an ounce of prevention, even if it costs a fair amount, is well worth a pound or more of inadequate treatment. The final conclusions from TROPHY, hopefully to be available in 2 years, are eagerly awaited. They may lead to a major rethinking of our current attitude about prevention of hypertension.The opinions expressed in this editorial are not necessarily those of the editors or of the American Heart Association.FootnotesCorrespondence to Norman Kaplan, University of Texas Southwestern, Department of Internal Medicine, Hypertension Division, 5323 Harry Hines Blvd., Dallas TX. E-mail [email protected] References 1 Julius S, Nesbitt S, Egan B, Kaciroti N, Schork MA, Grozinski M, Michelson E, for the TROPHY Study Group. Trial of PreventingHypertension (TROPHY): Design and 2-Year Progress Report.“ Hypertension. 2004; 44: 146–151.LinkGoogle Scholar2 Chobanian AV, Bakris GL, Black HR, Cushman WC, Green LA, Izzo JL Jr, Jones DW, Materson BJ, Oparil S, Wright JT Jr, Roccella EJ; National Heart, Lung, and Blood Institute Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure; National High Blood Pressure Education Program Coordinating Committee. The seventh report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure. The JNC 7 report. JAMA. 2003; 289: 2560–2672.CrossrefMedlineGoogle Scholar3 Zanchetti A. Costs of implementing recommendations on hypertension management given in recent guidelines. J Hypertens. 2003; 21: 2207–2209.CrossrefMedlineGoogle Scholar4 Kaplan NM. Anxiety-induced hyperventilation: A common cause of symptoms in patients with hypertension. Arch Intern Med. 1997; 157: 945–948.CrossrefMedlineGoogle Scholar5 Guidelines Committee. 2003 European Society of Hypertension-European Society of Cardiology guidelines for the management of arterial hypertension. J Hypertens. 2003; 21: 1011–1053.CrossrefMedlineGoogle Scholar6 Williams B, Poulter NR, Brown MJ, Davis M, McInnes GT, Potter JF, Sever PS, Thom SM. British Hypertension Society guidelines for hypertension management 2004 (BHS-IV): Summary. BMJ. 2004; 328: 634–640.CrossrefMedlineGoogle Scholar Previous Back to top Next FiguresReferencesRelatedDetailsCited By Karuparthi P, Yerram P, Lastra G, Hayden M and Sowers J (2007) Understanding essential hypertension from the perspective of the cardiometabolic syndrome, Journal of the American Society of Hypertension, 10.1016/j.jash.2007.01.006, 1:2, (120-134), Online publication date: 1-Mar-2007. Hajjar I, Kotchen J and Kotchen T (2006) HYPERTENSION: Trends in Prevalence, Incidence, and Control, Annual Review of Public Health, 10.1146/annurev.publhealth.27.021405.102132, 27:1, (465-490), Online publication date: 1-Apr-2006. Carrizzo A, Basilicata M, Pepe G, Sørensen K, Ciccarelli M, Sarno V, Damato A, Venturini E, Borrelli A, Musella S, Abate M, Pietro P, Ostacolo C, Campiglia P and Vecchione C (2021) A Novel Vasoactive Peptide “PG1” from Buffalo Ice-Cream Protects from Angiotensin-Evoked High Blood Pressure, Antioxidants, 10.3390/antiox10030441, 10:3, (441) August 2004Vol 44, Issue 2 Advertisement Article InformationMetrics https://doi.org/10.1161/01.HYP.0000136909.14661.7cPMID: 15249550 Originally publishedJuly 12, 2004 PDF download Advertisement" @default.
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