Review of blood pressure control rates and outcomes

Area of Science:

• Cardiovascular Medicine
• Pharmacology
• Clinical Hypertension Research

Background:

• Hypertension affects a significant portion of the population, with a high percentage of patients failing to achieve controlled blood pressure (BP).
• A majority of patients with uncontrolled hypertension are treated with two or more antihypertensive medications.

Purpose of the Study:

• To review the relationship between antihypertensive combination drug therapy, achievement of goal BP, and cardiovascular (CV) outcomes.
• To assess the efficacy and safety of combination antihypertensive therapy in achieving BP targets.

Main Methods:

• A systematic review of randomized, controlled clinical trials (RCTs) published in English from January 1991 to January 2013.
• Articles were identified via a PubMed search, with 28 studies meeting inclusion criteria, encompassing 226,877 subjects.
• Included studies comprised seven placebo-controlled trials and 21 trials comparing treatments or evaluating combination therapy.

Main Results:

• A positive association was observed between the degree of BP lowering, the number of medications used, and improved CV outcomes.
• The increasing availability and utilization of combination therapy in clinical trials correlated with a higher proportion of patients achieving their BP targets.
• Adverse events associated with both monotherapy and combination therapy were consistent with the known profiles of the specific antihypertensive drug classes.

Conclusions:

• Combination antihypertensive therapy is frequently necessary for patients to achieve their target blood pressure goals.
• Effective blood pressure reduction through combination therapy is linked to significant improvements in cardiovascular outcomes.
• While many patients require multiple drugs, combination therapy plays a crucial role in optimizing hypertension management and reducing CV risk.