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Trial NCT00000535

Resource URI: http://static.linkedct.org/resource/trials/NCT00000535
PropertyValue
linkedct:brief_title Trial of Nonpharmacologic Interventions in Elderly (TONE)
linkedct:collaborator_agency <http://static.linkedct.org/resource/collabagency/5476>
linkedct:condition <http://static.linkedct.org/resource/condition/13668>
linkedct:condition <http://static.linkedct.org/resource/condition/2312>
linkedct:condition <http://static.linkedct.org/resource/condition/5702>
linkedct:condition <http://static.linkedct.org/resource/condition/6238>
linkedct:criteria Men and women with a systolic blood pressure of less than 145 mm Hg and diastolic blood pressure of less than 85 mm Hg on single-drug therapy.
linkedct:description BACKGROUND: An estimated 30 to 40 percent of elderly persons are treated with blood pressure medications. The efficacy of blood pressure drug therapy in older patients with diastolic or combined diastolic/systolic hypertension is well proven, but such therapy can adversely affect quality of life and biochemical profile. In 1992 when the study started, there was a compelling rationale to identify what proportion of medicated, well-controlled elderly hypertensives could be maintained long-term or greater than 30 months in the normotensive state following withdrawal of blood pressure medications. There was also a need to determine whether nonpharmacologic therapy could significantly increase the proportion with a successful outcome. DESIGN NARRATIVE: Randomized. A total of 585 overweight subjects were assigned in a 2 x 2 factorial design to weight loss, sodium reduction, combined weight loss and sodium reduction, or usual life-style control. The remaining 390 subjects of normal weight were assigned in a 2-armed design to a sodium reduction or an attention control group. The control groups were engaged in a series of non-blood pressure related health encounters designed to control for non-specific effects of groups contacts. Withdrawal of antihypertensive medication was attempted following three months of intervention. The primary endpoint was a blood pressure of 150/90 mm Hg or greater, resumption of antihypertensive drug therapy, or the occurrence of a blood pressure-related clinical complication during two to three years of follow-up. Recruitment ended in June, 1994. Follow-up ended in December, 1995. NHLBI support for the trial ended in March, 1997. The NIA supported the Coordinating Center and two clinical centers through February 1998.
linkedct:download_date Information obtained from ClinicalTrials.gov on December 30, 2009
linkedct:eligibility_gender Both
linkedct:eligibility_healthy_volunteers No
linkedct:eligibility_maximum_age 80 Years
linkedct:eligibility_minimum_age 60 Years
linkedct:end_date March 1997
linkedct:enrollment 0 (xsd:int)
linkedct:firstreceived_date October 27, 1999
linkedct:id NCT00000535
rdfs:label Trial NCT00000535
linkedct:lastchanged_date June 23, 2005
linkedct:lead_sponsor_agency National Heart, Lung, and Blood Institute (NHLBI)
linkedct:location <http://static.linkedct.org/resource/location/139091>
linkedct:location <http://static.linkedct.org/resource/location/141184>
linkedct:location <http://static.linkedct.org/resource/location/142679>
linkedct:location <http://static.linkedct.org/resource/location/144800>
linkedct:nct_id NCT00000535
linkedct:number_of_arms 0 (xsd:int)
linkedct:number_of_groups 0 (xsd:int)
linkedct:org_study_id 78
linkedct:overall_official <http://static.linkedct.org/resource/overall_official/60711>
linkedct:overall_status Completed
linkedct:oversight <http://static.linkedct.org/resource/oversight/2918>
foaf:page <http://clinicaltrials.gov/show/NCT00000535>
linkedct:phase Phase 3
linkedct:reference <http://static.linkedct.org/resource/reference/12568>
linkedct:reference <http://static.linkedct.org/resource/reference/14313>
linkedct:reference <http://static.linkedct.org/resource/reference/14942>
linkedct:reference <http://static.linkedct.org/resource/reference/46179>
linkedct:reference <http://static.linkedct.org/resource/reference/50786>
linkedct:reference <http://static.linkedct.org/resource/reference/51629>
linkedct:reference <http://static.linkedct.org/resource/reference/54023>
linkedct:reference <http://static.linkedct.org/resource/reference/55729>
linkedct:reference <http://static.linkedct.org/resource/reference/9446>
linkedct:source National Heart, Lung, and Blood Institute (NHLBI)
linkedct:start_date April 1992
linkedct:study_design Treatment, Randomized, Factorial Assignment
linkedct:study_type Interventional
linkedct:summary To test the efficacy of weight loss and sodium restriction, alone and combined, in maintaining the normotensive state following withdrawal of antihypertensive medications in an elderly cohort. Conducted in collaboration with the National Institute on Aging.
rdf:type linkedct:trials
linkedct:verification_date October 2002