Long-Term Effect of Home Blood Pressure Self-Monitoring Plus Medication Self-Titration for Patients With Hypertension: A Secondary Analysis of the ADAMPA Randomized Clinical Trial.

Importance: Patient empowerment through pharmacologic self-management is a common strategy for some chronic diseases such as diabetes, but it is rarely used for controlling blood pressure (BP). Several trials have shown its potential for reducing BP in the short term, but evidence in the longer term is scarce. Objective: To evaluate the longer-term effectiveness of BP self-monitoring plus self-titration of antihypertensive medication vs usual care for patients with poorly controlled hypertension, with passive follow-up and primary-care nursing involvement. Design, Setting, and Participants: The ADAMPA (Impact of Self-Monitoring of Blood Pressure and Self-Titration of Medication in the Control of Hypertension) study was a randomized, unblinded clinical trial with 2 parallel arms conducted in Valencia, Spain. Included participants were patients 40 years or older, with systolic BP (SBP) over 145 mm Hg and/or diastolic BP (DBP) over 90 mm Hg, recruited from July 21, 2017, to June 30, 2018 (study completion, August 25, 2020). Statistical analysis was conducted on an intention-to-treat basis from August 2022 to February 2024. Interventions: Participants were randomized 1:1 to usual care vs an individualized, prearranged plan based on BP self-monitoring plus medication self-titration. Main Outcomes and Measures: The main outome was the adjusted mean difference (AMD) in SBP between groups at 24 months of follow-up. Secondary outcomes were the AMD in DBP between groups at 24 months of follow-up, proportion of patients reaching the BP target (SBP <140 mm Hg and DBP <90 mm Hg), change in behaviors, quality of life, health service use, and adverse events. Results: Among 312 patients included in main trial, data on BP measurements at 24 months were available for 219 patients (111 in the intervention group and 108 in the control group). The mean (SD) age was 64.3 (10.1) years, and 120 patients (54.8%) were female; the mean (SD) SBP was 155.6 (13.1) mm Hg, and the mean (SD) diastolic BP was 90.8 (7.7) mm Hg. The median follow-up was 23.8 months (IQR, 19.8-24.5 months). The AMD in SBP at the end of follow-up was -3.4 mm Hg (95% CI, -4.7 to -2.1 mm Hg; P < .001), and the AMD in DBP was -2.5 mm Hg (95% CI, -3.5 to -1.6 mm Hg; P < .001). Subgroup analysis for the main outcome showed consistent results. Sensitivity analyses confirmed the robustness of the main findings. No differences were observed between groups in behaviors, quality of life, use of health services, or adverse events. Conclusions and Relevance: In this secondary analysis of a randomized clinical trial, BP self-monitoring plus self-titration of antihypertensive medication based on an individualized prearranged plan used in primary care reduced BP in the longer term with passive follow-up compared with usual care, without increasing health care use or adverse events. These results suggest that simple, inexpensive, and easy-to-implement self-management interventions have the potential to improve the long-term control of hypertension in routine clinical practice. Trial Registration: ClinicalTrials.gov Identifier: NCT03242785.

Home Blood Pressure Self-monitoring plus Self-titration of Antihypertensive Medication for Poorly Controlled Hypertension in Primary Care: the ADAMPA Randomized Clinical Trial.

BACKGROUND: Patient empowerment through pharmacological self-management is a common strategy in some chronic diseases such as diabetes, but it is rarely used for controlling blood pressure. OBJECTIVE: This study aimed to assess self-monitoring plus self-titration of antihypertensive medication versus usual care for reducing systolic blood pressure (SBP) at 12 months in poorly controlled hypertensive patients. DESIGN: The ADAMPA study was a pragmatic, controlled, randomized, non-masked clinical trial with two parallel arms in Valencia, Spain. PARTICIPANTS: Hypertensive patients older than 40 years, with SBP over 145 mmHg and/or diastolic blood pressure (DBP) over 90 mmHg, were recruited from July 2017 to June 2018. INTERVENTION: Participants were randomized 1:1 to usual care versus an individualized, pre-arranged plan based on self-monitoring plus self-titration. MAIN MEASURE: The primary outcome was the adjusted mean difference (AMD) in SBP between groups at 12 months. KEY RESULTS: Primary outcome data were available for 312 patients (intervention n=156, control n=156) of the 366 who were initially recruited. The AMD in SBP at 12 months (main analysis) was -2.9 mmHg (95% CI, -5.9 to 0.1, p=0.061), while the AMD in DBP was -1.9 mmHg (95% CI, -3.7 to 0.0, p=0.052). The results of the subgroup analysis were consistent with these for the main outcome measures. More patients in the intervention group achieved good blood pressure control (<140/90 mmHg) at 12 months than in the control group (55.8% vs 42.3%, difference 13.5%, 95% CI, 2.5 to 24.5%, p=0.017). At 12 months, no differences were observed in behavior, quality of life, use of health services, or adverse events. CONCLUSION: Self-monitoring plus self-titration of antihypertensive medication based on an individualized pre-arranged plan used in primary care may be a promising strategy for reducing blood pressure at 12 months compared to usual care, without increasing healthcare utilization or adverse events. TRIAL REGISTRATION: EudraCT, number 2016-003986-25 (registered 17 March 2017) and clinicaltrials.gov , NCT03242785.

Primary care doctors' views on self-monitoring of blood pressure and self-titration among patients with uncontrolled hypertension in Spain. The ADAMPA trial focus group study.

BACKGROUND: Despite the increased use of blood pressure (BP) monitoring devices at home, the hypertension of more than 50% of European patients remains uncontrolled. Nevertheless, the self-management of BP, through the combination of home monitoring of BP with self-titration, could be anaccessible and effective tool for improving hypertension control in the primary care setting. The ADAMPA study is a trial with participants randomised to BP self-management (BPSM) with self-titration of antihypertensive medication or to usual care, in a population of patients with poorly controlled hypertension. AIM: To explore the views and attitudes of primary care doctors participating in the ADAMPA trial regarding BPSM with self-titration. DESIGN & SETTING: A focus group study took place with primary care doctors participating in the ADAMPA trial, which was carried out in one health district of the Valencia Health System in Spain. METHOD: Nine primary care doctors participating in the ADAMPA trial were included in the focus group. Three researchers (two using manual methods and one using NVivo software) independently conducted a content analysis, reading the transcripts, identifying, classifying, and coding the contents, and developing a conceptual scheme based on these topics. RESULTS: Participating doctors clearly support home BP monitoring (HBPM), the setting of individual BP targets, and incorporating patient readings into decision-making. They consider it an investment to educate patients for medication self-adjustment and estimate that an important proportion of their patients are potential candidates for hypertension self-management with medication self-titration. However, they show important divergences regarding the role of nursing in BP control. CONCLUSION: Primary care doctors participating in the ADAMPA trial feel comfortable with BPSM with self-titration, and would consider extending its use (or the use of some components, such as BP target setting) to other patients with hypertension outside the trial.

Rationale and design of a pragmatic clinical trial to assess the impact of self-monitoring blood pressure at home and self-titration of antihypertensive medication in poorly controlled hypertension: the ADAMPA study protocol.

BACKGROUND: Lack of control of hypertension is one of the most prevalent problems encountered by general practitioners (GPs). Self-measured blood pressure monitoring at home (SMBP) and self-titration of medication could be a good strategy to improve hypertension management, however, evidence is limited and not conclusive. We aimed to assess the effectiveness, in the primary care setting, of an intervention that includes educational components, SMBP and self-titration of antihypertensive medication to decrease systolic blood pressure compared to usual care, in a population with poorly controlled hypertension, during a 12-month period. METHODS: Pragmatic, controlled, randomized, unblinded clinical trial with two parallel groups assigned in a ratio of 1:1 to self-management (which includes educational components, SBMP and self-titration of antihypertensive medication based on a patient's GP's pre-established adjustment plan) or to usual care (with educational components too). DISCUSSION: If the data from this trial show positive results, the study may contribute to a change of strategy in the treatment of hypertension, focusing on the patient as the main actor to achieve blood pressure control. Furthermore, this approach might contribute to the financial sustainability of the National Health Service. TRIAL REGISTRATION: This trial has been registered in the database with reference number EudraCT: 2016-003986-25. Registered 05 May 2017, https://www.clinicaltrialsregister.eu/ctr-search/search?query=2016-003986-25.