Guideline LDL-C Threshold Achievement in Acute Myocardial Infarction Patients: A Real-World Evidence Study Demonstrating the Impact of Treatment Intensification with PCSK9i

Introduction A high proportion of Canadian patients with acute myocardial infarction (AMI) do not achieve the threshold low-density lipoprotein cholesterol (LDL-C) levels recommended by the Canadian Cardiovascular Society in 2021. This increases the risk of subsequent atherosclerotic cardiovascular disease (ASCVD) events. Here, we assess LDL-C levels and threshold achievement among patients by lipid-lowering therapies (LLT) received post-AMI. Methods A retrospective cohort study of patients identified with AMI between 2015 and 2019 was conducted using administrative health databases in Alberta, Canada. Patients were grouped by their highest-intensity LLT post-AMI (proprotein convertase subtilisin/kexin type 9 inhibitors (PCSK9i) + another LLT; PCSK9i alone; ezetimibe + statin; statins (high, moderate, low intensity); or ezetimibe alone), and available LDL-C levels were examined in the year before and after LLT dispense date. Results The cohort included 15,283 patients. In patients on PCSK9i + LLT, the median [95% confidence interval (CI)] LDL-C levels decreased from 2.7 (2.3–3.4) before to 0.9 (0.5–1.2) mmol/l after treatment, the largest decrease among treatment groups. In the ezetimibe + statin and high-intensity statin groups, median (95% CI) values after treatment were 1.5 (1.5–1.6) and 1.4 (1.4–1.4) mmol/l, respectively. The proportion of patients below the 1.8 mmol/l threshold increased by 77.7% in the PSCK9i + LLT group after treatment, compared to 45.4 and 32.4% in the ezetimibe + statin and high-intensity statin groups, respectively. Conclusions Intensification with PCSK9i in AMI patients results in a greater proportion of patients achieving below the recommended LDL-C threshold versus statins and or ezetimibe alone. Increased focus on achieving below the LDL-C thresholds with additional LLT as required may benefit patient cardiovascular outcomes..

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:12

Enthalten in:

Cardiology and therapy - 12(2023), 2 vom: 19. Jan., Seite 327-338

Sprache:

Englisch

Beteiligte Personen:

Mackinnon, Erin S. [VerfasserIn]
Har, Bryan [VerfasserIn]
Champsi, Salimah [VerfasserIn]
Wani, Rajvi J. [VerfasserIn]
Geyer, Lee [VerfasserIn]
Shaw, Eileen [VerfasserIn]
Farris, Megan S. [VerfasserIn]
Anderson, Todd J. [VerfasserIn]

Links:

Volltext [kostenfrei]

Themen:

Acute myocardial infarction
Lipid-lowering therapy
Low-density lipoprotein cholesterol
Proprotein convertase subtilisin/kexin type 9 inhibitors
Real-world evidence

Anmerkungen:

© The Author(s) 2022. corrected publication 2023

doi:

10.1007/s40119-022-00300-7

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

SPR051627205