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Cluster Randomized Trial of a Digital Quality Improvement Intervention on LDLCholesterol Control

A Pragmatic Cluster Randomized Trial to Assess the Effect of a Digitally Enabled Quality Improvement Intervention on LDL Cholesterol Control in Atherosclerotic Established Cardiovascular Disease Patients

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05622929
Acronym
SAPPHIRE-LDL
Enrollment
1465
Registered
2022-11-21
Start date
2023-01-10
Completion date
2025-12-17
Last updated
2026-04-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Atherosclerosis, Cardiovascular Diseases, Dyslipidemias

Keywords

Cardiovascular diseases, Atherosclerosis, Dyslipidemias

Brief summary

Elevation in low density lipoprotein (LDL) cholesterol (LDL-C) is a causal risk factor for atherosclerotic established cardiovascular disease (ASCVD). Reduction of LDL-C with statins has been clearly demonstrated as a robust and cost-effective way of reducing the burden of ASCVD in individuals at risk. ASCVD is the leading cause of death and disability in Brazil and therefore prevention guidelines recommend LDL-C reduction with the aim of reducing disease burden in individuals at risk. Studies have shown a clear hiatus on awareness and treatment of cholesterol in Brazil. Thus, it became imperative to develop knowledge translation projects aiming at bridging the gap between science and clinical practice and ultimately leading to better outcomes. Cluster randomized clinical trials are the highest quality type of clinical research to test educational and active interventions aimed at changing behaviors or clinical practices. Therefore, this study is a pragmatic cluster randomized trial to assess the effect of a digitally enabled quality improvement intervention on LDL-C control in atherosclerotic established cardiovascular disease (ASCVD) patients.

Detailed description

Elevation in low density lipoprotein (LDL) cholesterol (LDL-C) is a causal risk factor for atherosclerotic established cardiovascular disease (ASCVD). Reduction of LDL-C with statins has been clearly demonstrated as a robust and cost-effective way of reducing the burden of ASCVD in individuals at risk. ASCVD is the leading cause of death and disability in Brazil and therefore prevention guidelines recommend LDL-C reduction with the aim of reducing disease burden in individuals at risk. Studies have shown a clear hiatus on awareness and treatment of cholesterol in Brazil. Thus, it became imperative to develop knowledge translation projects aiming at bridging the gap between science and clinical practice and ultimately leading to better outcomes. Cluster randomized clinical trials are the highest quality type of clinical research to test educational and active interventions aimed at changing behaviors or clinical practices.To our knowledge, data from this study will be crucial to leverage LDL-C treatment in Brazil, considering efforts to improve population health. The present study represents one of the first trials testing a quality improvement (QI) intervention targeted to LDL-C reduction in ASCVD patients conducted in a middle-income country. These results will address whether the proposed QI intervention is feasible and effective in these settings. Therefore, this study is a pragmatic cluster randomized trial to assess the effect of a digitally enabled QI intervention on LDL-C control in ASCVD patients. This study will have 2 phases. Phase 1 will be an observational phase prior to randomization of clusters with the objective to assess the baseline LDL-C levels achieved for target patients. Phase 2 will be an interventional phase, in which clusters will be randomized to the digitally enabled quality improvement intervention or usual care, with the objective to assess the effect of a digitally enabled QI intervention on control of LDL-C levels in ASCVD patients.

Interventions

BEHAVIORALDigitally-enabled Multifaceted Quality Improvement Intervention

Digitally-enabled multifaceted strategy in addition to access to a RWE platform to provide clinical data. The digitally-enabled multifaceted strategy will include various tools that will provide support to the health professionals responsible for treating ASCVD patients in each center as well as patients, including: * Knowledge of effective lipid lowering therapies * Clinical decision support * Audit and feedback on adherence to optimal clinical management * Audit and feedback on LDL-C control

BEHAVIORALUsual care

Health professionals responsible for treating ASCVD patients in each center will continue to provide usual care to ASCVD patients in addition to provide data through a RWE platform.

Sponsors

Hospital Israelita Albert Einstein
Lead SponsorOTHER
epHealth primary care solutions
CollaboratorUNKNOWN
Novartis
CollaboratorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
HEALTH_SERVICES_RESEARCH
Masking
NONE

Intervention model description

Cluster randomized clinical trial

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Patient Eligibility Criteria: Inclusion Criteria: * Capable of using a smartphone with iOS or Android System AND * Established ASCVD, including: 1. Coronary Artery Disease (CAD): * Prior myocardial infarction * Prior coronary revascularization - percutaneous coronary intervention (PCI) or coronary artery bypass graft (CABG) * Angiographic or computerized tomography (CT)-imaging evidence of coronary atherosclerosis (≥ 50% stenosis in at least one major epicardial coronary artery) 2. Stroke: • Prior ischemic stroke thought not to be caused by an embolic cause (e.g., atrial fibrillation, valvular heart disease or mural thrombus) 3. Peripheral Artery Disease (PAD): * Prior documentation of a resting ankle-brachial index ≤ 0.9 * History of prior percutaneous or surgical revascularization of an iliac, femoral, or popliteal artery * Prior non-traumatic amputation of a lower extremity due to peripheral artery disease * History of prior percutaneous or surgical carotid artery revascularization * Carotid Stenosis \> 50% on prior angiography or ultrasound AND * Provision of informed consent

Exclusion criteria

* Patients with a recent cardiovascular event, less than 3 months prior to study inclusion * Patients with LDL-C ≤ 50 mg/dL * Current participation in other clinical trials involving lipid lowering treatments * Patients that do not consent to trial participation Cluster Eligibility Criteria: Inclusion Criteria: * Outpatient Clinics from public or private hospitals OR, Private Practices, which assist patients with previous ASCVD on secondary prevention that provide a unit/institution authorization form for participation in the trial AND * Minimum monthly volume of 20 ASCVD patients

Design outcomes

Primary

MeasureTime frameDescription
Phase 1: LDL-C levelsBaselineLDL-C levels measured at a single visit
Phase 2: LDL-C6 monthsLDL-C levels measured at the end of follow up of Phase 2

Secondary

MeasureTime frameDescription
Phase 1: Prescribed lipid-lowering therapyBaselinePercentage of patients on prescribed lipid-lowering therapy
Phase 1: Prescribed combination lipid-lowering therapyBaselinePercentage of patients on prescribed combination lipid-lowering therapy
Phase 1: Prescribed intensive lipid-lowering therapyBaselinePercentage of patients on prescribed intensive lipid-lowering therapy
Phase 1: Prescription of any statinsBaselinePercentage of prescription of any statins
Phase 1: Prescription of high intensity statinsBaselinePercentage of prescription of high intensity statins
Phase 1: Prescription of ezetimibeBaselinePercentage of prescription of ezetimibe
Phase 1: Prescription of PCSK9 monoclonal antibody or siRNA PCSK9 inhibitorsBaselinePercentage of prescription of PCSK9 monoclonal antibody or siRNA PCSK9 inhibitors
Phase 1: LDL-C < 50 mg/dLBaselinePercentage of patients with LDL-C \< 50 mg/dL
Phase 2: Prescribed lipid-lowering therapy6 monthsPercentage of patients on prescribed lipid-lowering therapy
Phase 2: Prescribed combination lipid-lowering therapy6 monthsPercentage of patients on prescribed combination lipid-lowering therapy
Phase 2: Prescribed intensive lipid-lowering therapy6 monthsPercentage of patients on prescribed intensive lipid-lowering therapy
Phase 2: Prescription of any statins6 monthsPercentage of prescription of any statins
Phase 2: Prescription of high intensity statins6 monthsPercentage of prescription of high intensity statins
Phase 2: Prescription of moderate intensity statins6 monthsPercentage of prescription of moderate intensity statins
Phase 2: Prescription of low intensity statins6 monthsPercentage of prescription of low intensity statins
Phase 2: Prescription of ezetimibe6 monthsPercentage of prescription of ezetimibe
Phase 2: Prescription of PCSK9 monoclonal antibody or siRNA PCSK9 inhibitors6 monthsPercentage of prescription of PCSK9 monoclonal antibody or siRNA PCSK9 inhibitors
Phase 2: LDL-C < 50 mg/dL6 monthsPercentage of patients with LDL-C \< 50 mg/dL
Phase 2: LDL-C relative change6 monthsChange in LDL-C relative to baseline
Phase 2: LDL-C reduction of ≥50%6 monthsPercentage of patients with LDL-C reduction of ≥50% relative to baseline
Phase 2: non-HDL-C relative change6 monthsChange in non-HDL-C relative to baseline
Phase 2: Barriers for drug prescription6 monthsBarriers for drug prescription at the system (cluster) and physician level
Phase 2: Adherence to prescribed lipid-lowering therapy6 monthsPatient´s adherence to prescribed lipid-lowering therapy
Phase 2: Barriers for drug adherence6 monthsPatient´s barriers for drug adherence
Phase 2: Intolerance to Statins6 monthsPercentage of patients with intolerance to Statins

Countries

Brazil

Contacts

PRINCIPAL_INVESTIGATORM. Julia Machline-Carrion, PhD

epHealth

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 23, 2026