Background:
Accelerated endothelial healing after targeted antiproliferative drug delivery may limit the long-term inflammatory response of drug eluting stents (DES). The novel Supreme
TM
DES (Supreme) is designed to synchronize early drug delivery within 4-6 weeks of implantation, leaving behind a pro-healing permanent base layer. Whether the Supreme DES is safe and effective in the short term and can improve long term clinical outcomes is not known.
Methods:
In an international 2:1 randomized single-blind trial, we compared treatment with Supreme DES to durable polymer everolimus-eluting stents (DP-DES) in patients with acute and chronic coronary syndromes. The primary endpoint was target lesion failure (TLF) - a composite of cardiac death, target vessel myocardial infarction, or clinically-driven target lesion revascularisation (TLR). The trial was designed to demonstrate non-inferiority (margin of 3.58%) of the Supreme DES at 12 months compared to DP-DES (clinicaltrials.gov-NCT03168776).
Results:
From October 2017 to July 2019, a total of 1629 patients were randomly assigned (2:1) to the Supreme DES (N=1086) or DP-DES (N=543). At 12 months, TLF occurred in 57 of 1057 patients (5.4%) in the Supreme DES group and in 27 of 532 patients (5.1%) in the DP-DES group (Absolute Risk Difference 0.32%, 95%CI [-1.87%, 2.5%]; p
non-inferiority
=0.002]. There were no significant differences in rates of device success, clinically driven TLR or stent thrombosis at 12 months, and the safety composite of CV Death and TV MI was 3.5% vs 4.6%; HR [95.0% CI] 0.76 [0.46, 1.25] with Supreme DES compared to DP-DES, though rates of combined clinical and non-clinical driven TLR at 12 months were higher with Supreme DES.
Conclusions:
Among patients with acute and chronic coronary syndromes undergoing percutaneous coronary intervention, the Supreme DES proved to be non-inferior to the standard DP-DES.
Clinical Trial Registration:
URL: https://www.clinicaltrials.gov Unique Identifier: NCT03168776
Background
The long-term cardiovascular (CV) outcomes of COVID-19 have not been fully explored.
Methods
This was an international, multicenter, retrospective cohort study conducted between February and December 2020. Consecutive patients ≥18 years who underwent a real-time reverse transcriptase-polymerase chain reaction (RT-PCR) for SARS-CoV2 were included. Patients were classified into two cohorts depending on the nasopharyngeal swab result and clinical status: confirmed COVID-19 (positive RT-PCR) and control (without suggestive symptoms and negative RT-PCR). Data were obtained from electronic records, and clinical follow-up was performed at 1-year. The primary outcome was CV death at 1-year. Secondary outcomes included arterial thrombotic events (ATE), venous thromboembolism (VTE), and serious cardiac arrhythmias. An independent clinical event committee adjudicated events. A Cox proportional hazards model adjusted for all baseline characteristics was used for comparing outcomes between groups. A prespecified landmark analysis was performed to assess events during the post-acute phase (31–365 days).
Results
A total of 4,427 patients were included: 3,578 (80.8%) in the COVID-19 and 849 (19.2%) control cohorts. At one year, there were no significant differences in the primary endpoint of CV death between the COVID-19 and control cohorts (1.4% vs. 0.8%; HRadj 1.28 [0.56–2.91]; p = 0.555), but there was a higher risk of all-cause death (17.8% vs. 4.0%; HRadj 2.82 [1.99–4.0]; p = 0.001). COVID-19 cohort had higher rates of ATE (2.5% vs. 0.8%, HRadj 2.26 [1.02–4.99]; p = 0.044), VTE (3.7% vs. 0.4%, HRadj 9.33 [2.93–29.70]; p = 0.001), and serious cardiac arrhythmias (2.5% vs. 0.6%, HRadj 3.37 [1.35–8.46]; p = 0.010). During the post-acute phase, there were no significant differences in CV death (0.6% vs. 0.7%; HRadj 0.67 [0.25–1.80]; p = 0.425), but there was a higher risk of deep vein thrombosis (0.6% vs. 0.0%; p = 0.028). Re-hospitalization rate was lower in the COVID-19 cohort compared to the control cohort (13.9% vs. 20.6%; p = 0.001).
Conclusions
At 1-year, patients with COVID-19 experienced an increased risk of all-cause death and adverse CV events, including ATE, VTE, and serious cardiac arrhythmias, but not CV death.
Study registration
URL: https://www.clinicaltrials.gov. Unique identifier: NCT04359927.
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