Proprotein Convertase Subtilisin/Kexin type-9 (PCSK-9) inhibitors have recently used in the management of different cardiac complications. Several clinical trials demonstrated their effectiveness in patients with hypercholesterolemia. However, the effectiveness of these medications in patients with heart diseases is still controversial. To review and summarize the clinical trials pertaining to the use and effectiveness of PCSK-9 inhibitors in heart diseases and to discuss the pharmacotherapy of these agents. A review was conducted of all clinical trials with PCSK-9 inhibitors for heart diseases registered at ClinicalTrials.gov since inception up to and including January 19th, 2024. These trials were retrieved. Data from these trials were extracted manually, categorized and analyzed. The number of identified clinical trials was 25,371. After screening and excluding irrelevant studies, 12 studies met the search criteria. The majority of these studies were conducted in the US. The total number of patients in these studies was 27,700. Alirocumab and Evolocumab were the most frequently used PCSK-9 inhibitors. This review identified only a few clinical trials on PCSK-9 inhibitors in heart disease patients. Therefore, it is recommended to conduct more randomized controlled clinical trials on PCSK-9 inhibitors in this patient population.

20 Feb 2024·Journal of the American Heart Association

Lipid‐Lowering Therapy and Risk of Hemorrhagic Stroke: A Systematic Review and Meta‐Analysis of Randomized Controlled Trials

Review

Author: Rodondi, Nicolas ; Haller, Moa Lina ; Speierer, Alexandre ; Moutzouri, Elisavet ; Bétrisey, Sylvain ; Blum, Manuel R. ; Del Giovane, Cinzia ; Aujesky, Drahomir ; Gencer, Baris ; Efthimiou, Orestis

BackgroundThere is debate over whether statins increase risk of hemorrhagic stroke, so we assessed current evidence, including data from new statin trials and trials of nonstatin low‐density lipoprotein‐cholesterol (LDL‐C)– and triglyceride‐lowering therapies.Methods and Results We performed a systematic review of large randomized clinical trials (≥1000 patients with ≥2 years follow‐up) of LDL‐C–lowering therapy (statin, ezetimibe, and PCSK‐9 [proprotein convertase subtilisin/kexin type 9] inhibitor) and triglyceride‐lowering therapy (omega‐3 supplements and fibrate) that reported hemorrhagic stroke as an outcome. We searched MEDLINE, Embase, and Cochrane Library up to July 2, 2021 and updated a meta‐analysis of cardiovascular statin trials published in 2012. Among our several subgroup analyses, we looked at difference depending on stroke status and also depending on age. We identified 37 trials for LDL‐C lowering (284 301 participants) and 11 for triglyceride lowering (120 984 participants). Overall, we found a higher risk of hemorrhagic stroke for LDL‐C lowering, risk ratio (RR) 1.16 (95% CI, 1.01–1.32, P =0.03). For statins (33 trials, 216 258 participants), RR=1.17 (95% CI, 1.01–1.36); for PCSK‐9 inhibitors (2 trials, 46 488 participants), RR=0.86 (95% CI, 0.43–1.74); and for ezetimibe (2 trials, 21 555 participants), RR=1.14 (95% CI, 0.64–2.03). In statin trials of patients with previous stroke/transient ischemic attack, RR was 1.46 (95% CI, 1.05–2.04), and in trials with mean age ≥65 years old, RR=1.34 (95% CI, 1.04–1.73) ( Pint =0.14 and Pint =0.23 respectively); for triglyceride lowering (11 trials, 120 984 participants), RR=1.05 (95% CI, 0.86–1.30). ConclusionsWe found evidence for a small increased risk of hemorrhagic stroke events with LDL‐C–lowering therapies but no clear evidence for triglyceride‐lowering therapies.Registration URL: https://www.crd.york.ac.uk/prospero ; Unique identifier: CRD42021275363.

06 Oct 2023·Cureus

PCSK-9 Inhibitors and Cardiovascular Outcomes: A Systematic Review With Meta-Analysis

Review

Author: Ashraf, Hafsa ; Khan, Safeera ; Kaur, Gursharan ; Okafor, Donatus K ; Katyal, Gitika ; Bodapati, Adi Prasad ; Hanif, Ayesha

Proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitors have been approved to treat dyslipidaemia. However, there is a lack of knowledge on the most efficient PCSK9 therapies that target PCSK9 for secondary prevention in subjects at high risk for cardiovascular (CV) events. Thus, this study aimed to assess the efficacy and safety of anti-PCSK9 antibodies in randomized controlled trials (RCTs). A comprehensive review of the available literature was done to identify RCTs that compared the use of PCSK9 inhibitors coupled with placebo or ezetimibe for the secondary prevention of CV events in patients on statin-background therapy. All-cause mortality was the major efficacy endpoint, while severe adverse events were the key safety outcome. A random effects model was used, and data were presented as risk ratio (RR) or risk difference with their corresponding 95% confidence intervals (CI). The heterogeneity of the publications was determined using Cochran's Q test, and publication bias was visually examined using funnel plots. All the chosen studies' quality was assessed using the Critical Appraisal Checklists for Studies created by the Joanna Briggs Institute (JBI). Forty-one studies (76,304 patients: 49,086 on evolocumab, and 27,218 on alirocumab) were included, and their years of publication spanned from 2010 to 2023. Overall, no significant differences were observed in CV and all-cause mortality between PCSK9 inhibitors and controls. However, alirocumab use was linked to a reduced risk of all-cause death compared to control, but not evolocumab. Each of the drugs, evolocumab and alirocumab, significantly reduced the risk of myocardial infarction (MI), coronary revascularization, and ischemic stroke. In comparison to the control therapy, the risk of major detrimental sequelae was significantly reduced by alirocumab therapy in the subgroup analysis of each PCSK9 inhibitor, whereas evolocumab treatment did not demonstrate significant differences (RR = 0.88; 95% CI = 0.72-1.04; evolocumab: RR = 0.99; 95% CI = 0.87-1.11). Both evolocumab and alirocumab are well-tolerated, safe medications that significantly lower low-density lipoprotein (LDL) levels.

100 Deals associated with PCSK-9 binding mAb(MabSpace Biosciences (Suzhou) Co., Ltd.)

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Indication	Highest Phase	Country/Location	Organization	Date
Hypercholesterolemia	Preclinical	CN	Suzhou Chuangsheng Pharmaceutical Group Co., Ltd.	-

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