ESTIMATED ADDED BENEFIT OF CATHETER-BASED RENAL DENERVATION FOR MODERATE TREATMENT-RESISTANT HYPERTENSION- IMPACT OF AGE AND CARDIOVASCULAR RISK FACTORS
Author(s)
Pietzsch JB1, Geisler BP1, Esler MD2
1Wing Tech Inc., Menlo Park, CA, USA, 2Baker IDI Heart and Diabetes Institute, Melbourne, Australia
OBJECTIVES Our objective was to estimate the impact of catheter-based renal denervation plus standard of care (RDN) versus standard of care alone (SoC) on European stage-1 hypertension patients with different cardiovascular risk factor profiles. METHODS We simulated resistant hypertension cohorts with different cardiovascular risk factor profiles (CVRPs) who had stage-1 hypertension despite adequate treatment with SoC. Six different cohorts with permutations of starting ages of 40, 55, or 70 years; and low and high CVRPs based on JNC7 guidelines were modeled. Interventions were RDN plus SoC with three or more anti-hypertensives including a diuretic at full doses or SoC alone. As observed in a recent prospective uncontrolled pilot study, the impact of a 13 mmHg reduction in systolic blood pressure (SBP) – from a baseline SBP of 151 mmHg – was evaluated. Undiscounted life year (LY) and quality-adjusted life year (QALY) gain was computed using a published life-time Markov simulation model based on multivariate risk equations. RESULTS Across the studied age groups and cardiovascular risk profiles, catheter-based renal denervation was associated with gains in unadjusted (0.51-1.48 LYs) and quality-adjusted life expectancy (0.39-1.20 QALYs). Younger age and higher cardiovascular risk profile led to numerically higher increments. The cohort-specific LY and QALY gains were projected as follows: 1) 40 year old cohorts: low CV risk profile: 0.84 LYs/ 0.78 QALYs; high CV risk profile: 1.48 LYs/ 1.20 QALYs; 2) 55 year old cohorts: low CV risk profile: 0.69 LYs/ 0.60 QALYs ; high CV risk profile: 1.29 LYs/ 0.95 QALYs; 3) 70 year old cohorts: low CV risk profile: 0.51 LYs/ 0.39 QALYs; high CV risk profile: 0.99 LYs/ 0.68 QALYs. CONCLUSIONS RDN, when used to treat moderate treatment-resistant hypertension, is associated with clinically significant increases in life expectancy. These model-based findings need to be confirmed in clinical trials.
Conference/Value in Health Info
2014-11, ISPOR Europe 2014, Amsterdam, The Netherlands
Value in Health, Vol. 17, No. 7 (November 2014)
Code
PCV10
Topic
Clinical Outcomes
Topic Subcategory
Comparative Effectiveness or Efficacy
Disease
Cardiovascular Disorders