Evidence map›Paper›PMID 25965621›Full record

SynthesisInternational journal of cardiology2015

Effects of add-on lipid-modifying therapy on top of background statin treatment on major cardiovascular events: A meta-analysis of randomized controlled trials.

Chi-kin Ip, Dong-mei Jin, Jia-jia Gao, Zhe Meng, Jing Meng, Zhi Tan, Jing-feng Wang, Deng-feng Geng

Abstract readMeta-AnalysisReview
PubMed Publisher
In one paragraph

Synthesis in International journal of cardiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 pooled it
6.8field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 2 syntheses or guidelines pooled it, 43 citations in OpenAlex.

  1. Niacin for primary and secondary prevention of cardiovascular events.The Cochrane database of systematic reviews · 2017 · on this map
    Pooled it
  2. Fibrates for primary prevention of cardiovascular disease events.The Cochrane database of systematic reviews · 2016 · on this map
    Pooled it
  3. Review
  4. Review
  5. Therapeutics in Metabolic Diseases.Advances in experimental medicine and biology · 2023
    Article
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  8. Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 1 country.

Chi-kin IpDepartment of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China; Key Laboratory of Electrophysiology and Arrhythmia of Guangdong Province, Guangzhou, China.
Dong-mei JinDepartment of Rehabilitation Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China.
Jia-jia GaoDepartment of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China; Key Laboratory of Electrophysiology and Arrhythmia of Guangdong Province, Guangzhou, China; Shenzhen Sun Yixian Cardiovascular Hospital, Shenzhen 518001,China.
Zhe MengDepartment of Pediatrics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China.
Jing MengDepartment of Cardiology, The First Affiliated Hospital of Soochow University, Suzhou 215000, China.
Zhi TanDepartment of Physiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510120, China.
Jing-feng WangDepartment of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China; Key Laboratory of Electrophysiology and Arrhythmia of Guangdong Province, Guangzhou, China. Electronic address: dr.wangjf@hotmail.com.
Deng-feng GengDepartment of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China; Key Laboratory of Electrophysiology and Arrhythmia of Guangdong Province, Guangzhou, China. Electronic address: dr.dfengg@hotmail.com.
Sun Yat-sen University · CNSoochow University · CNSun Yat-sen Memorial Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn patients at high risk of atherosclerotic cardiovascular diseases (ASCVDs), residual cardiovascular risk persists despite the achievement of target LDL cholesterol levels with statin therapy. It is still unclear whether adding lipid-modifying agent to statin treatment can further improve clinical outcomes.

methodsRandomized controlled trials (RCTs) in terms of adding lipid-modifying agent to statin versus statin monotherapy in patients at high risk of ASCVD were identified by electronic and manual searches. Results were expressed as relative risk (RR) with 95% confidence intervals (CIs).

resultsEleven RCTs with 109,244 patients were included in this meta-analysis. Overall, the incidences of major adverse cardiovascular events (MACEs) were 9.70% in the statin combination groups and 9.92% in the statin monotherapy groups. No significant difference was observed in the risk of MACEs either in overall (RR 0.99, 95% CI 0.93-1.05, P=0.76) or subgroup analysis (CETP inhibitor: RR 1.07, 95% CI 0.93-1.23, P=0.37; niacin: RR 1.03, 95% CI 0.85-1.25, P=0.79; n-3 fatty acid: RR 0.98, 95% CI 0.88-1.09, P=0.70; fenofibrate: RR 0.93, 95% CI 0.80-1.09, P=0.38), with the exception of the statin/ezetimibe combination subgroup (RR 0.92, 95% CI 0.87-0.97, P=0.004). Adding lipid-modifying agent to statin significantly increased liver injury risk. Adding ezetimibe to statin did not alter side effect profile.

conclusionAdding niacin, CETP inhibitors, n-3 fatty acid or fibrates to statin therapy has all failed to achieve a clinical benefit. Adding ezetimibe to statin therapy further lowers LDL-cholesterol safely and translates into a clinical benefit in patients at high risk of ASCVD.

Indexed as

Randomized Controlled Trials as TopicCardiovascular DiseasesHumansHydroxymethylglutaryl-CoA Reductase InhibitorsLipid MetabolismLipidsRisk FactorsHydroxymethylglutaryl-CoA Reductase InhibitorsLipidsCardiovascular eventsCholesteryl ester transfer protein inhibitorEzetimibeFibraten−3 fatty acidNiacinStatin

Identifiers

PMID25965621
OpenAlexW1965952643

What Socratic holds

Texttitle and abstract
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.