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Clinical Trial Summary

The investigators hypothesize that a gradual reduction in antihypertensive treatment in nursing home (NH) patients with low systolic blood pressure (SBP) can improve survival through a controlled increase in SBP and a decrease in secondary morbidity due to 'overmedication'. Accordingly, the investigators propose a randomized, case/control trial in NH patients ≥ 80 years with a SBP<130 mmHg with >1 anti-Htn drugs. This trial will consist of two parallel arms: the intervention arm will entail antihypertensive drug step-down, while the control arm will comprise the standard anti-hypertensive treatment.


Clinical Trial Description

High blood pressure (BP), principally systolic hypertension, is a common condition in older people and is considered a major determinant not only of cardiovascular morbidity and mortality, but also of several other age-related diseases, including frailty, cognitive decline and loss of autonomy. The Hypertension in the Very Elderly Treatment (HYVET) study showed the beneficial effect of antihypertensive treatment in patients ≥ 80 years. More recently, the Systolic Blood Pressure Intervention Trial (SPRINT) study showed that even in subjects 75 years and older, CVD outcomes and total mortality were reduced with intensive treatment as compared to the standard therapeutic strategies. However, both HYVET and SPRINT were conducted in selected populations since they excluded the most frail subjects, those with clinically significant cognitive decline and dementia, those with several cardiovascular and other co-morbidities, as well as patients living in nursing homes. - Interestingly, observational studies in these frail people, have shown no or even an inverse relationship between BP and morbidity and mortality. The PARTAGE longitudinal study was performed in 1130 subjects ≥ 80 years living in nursing homes (NHs). These subjects were receiving at mean 7.1 drugs/day; 2/3 of them were under antihypertensive drugs (mean 2.2 drugs/day). The PARTAGE study showed an over-mortality in hypertensive subjects with low SBP (<130 mmHg) treated with 2 or more antihypertensive drugs. These individuals, who represented 20% of the total studied population, exhibited 80% increase in mortality compared to all other groups, even after adjustment for several comorbidities. - The recent European guidelines for hypertension indicate that in people ≥ 80 years with SBP≥160 mmHg there is evidence to recommend reducing SBP to between 150 and 140 mmHg. However, no recommendation exists on which strategy to follow if treatment decreases SBP to lower levels (ex: 120 mmHg) especially on the more frail and polymedicated patients of that age. Thus, in this case, physicians can either continue the same treatment of reduce the number of drugs. - These contrasting results in old hypertensives reflects the enormous functional heterogeneity among individual of this age-group and clearly show that functional status rather than chronological age should guide therapeutic strategies. Thus, the guidelines for robust older individuals cannot be extrapolated to very old, frail individuals, who have been completely excluded from the above-mentioned clinical trials. The only way is to conduct a controlled clinical trial. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03453268
Study type Interventional
Source Assistance Publique - Hôpitaux de Paris
Contact
Status Active, not recruiting
Phase N/A
Start date October 2, 2018
Completion date July 2, 2024

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