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USA guidelines aspirin

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Summary of USA guidelines for aspirin

May 2021

The purpose of this document is to keep a working list of USA guidelines with information on aspirin.  The guidelines themselves should be read for further information.

Primary prevention of cardiovascular disease 

The U.S. Preventative Services Task Force (USPSTF) was created in 1984 and is an independent, volunteer panel of national experts in preventative and evidence-based medicine.  They use the following to grade their recommendations:

Usaguidelinegradings
 
The USPSTF April 2016 recommends low-dose aspirin to prevent cardiovascular disease and colorectal cancer in the following groups:

Grade B Adults age 50 to 59 years with a 10 year CVD risk of greater than 10% who are not at increased risk for bleeding, have a life expectancy of at least 10 years and are willing to take low-dose aspirin for at least 10 years.

Grade C Adults age 60 to 69 years with a 10 year CVD risk of greater than 10% should consider their individual risks versus benefits of long term low dose aspirin. Those who are not at risk of bleeding, have a life expectancy of at least 10 years and are willing to take low-dose aspirin for at least 10 years are more likely to benefit.

“Persons who place a higher value on the potential benefits than the potential harms may choose to initiate low-dose aspirin.”

The USPSTF state that there is insufficient current evidence to assess the balance of benefits versus harms of initiating aspirin for primary prevention of CVD and CRC in adults younger than 50 years or 70 years or older. (Grade I).

https://www.uspreventiveservicestaskforce.org/Page/Document/UpdateSummaryFinal/aspirin-to-prevent-cardiovascular-disease-and-cancer

The USPSTF is currently commissioning an update to its guidance on aspirin and primary prevention. More information can be found at:

https://www.uspreventiveservicestaskforce.org/uspstf/draft-update-summary/aspirin-use-to-prevent-cardiovascular-disease-and-colorectal-cancer-preventive-medication

The American College of Cardiology (ACC) and American Heart Association (AHA) Guidelines on the primary prevention of cardiovascular disease (2019 ACC/AHA Guidelines on the primary Prevention of Cardiovascular Disease)

states:

“ Aspirin is well established for secondary prevention of [atherosclerotic cardiovascular disease] ASCVD and is widely recommended for this indication, but recent studies have shown that in the modern era, aspirin should not be used in the routine prevention of ASCVD due to lack of net benefit.”

In particular they state that aspirin should be avoided in the following groups:

  • People with an increased risk of bleeding e.g. history of GI bleeding, bleeding from other sites, age> 70 years, thrombocytopenia, coagulopathy, chronic kidney disease and concurrent use of NSAIDS and anticoagulants.

 

AHA makes the following recommendations based on a meta-analysis of 3 recent trials:

  • “Low-dose aspirin might be considered for primary prevention of ASCVD in select higher ASCVD adults aged 40-70 years who are not at increased bleeding risk
  • Low-dose aspirin should not be administered on a routine basis for primary prevention of ASCVD among adults > 70 years.
  • Low-dose aspirin should not be administered for primary prevention among adults at any age who are at increased bleeding risk.”


For further information see:

https://www.jacc.org/doi/pdf/10.1016/j.jacc.2019.03.010

The American Diabetes Association (ADA) (Cardiovascular disease and risk management: Standards of Medical Care in Diabetes-2020. Diabetes Care 2020; 43(suppl.1): S111-S134) state that for the case of primary CVD prevention;

‘Aspirin therapy (75-162mg/day) may be considered as a primary prevention strategy in those with diabetes who are at increased cardiovascular risk, after a comprehensive discussion with the patient on the benefits versus the comparable increased risk of bleeding.’

The ADA review clinical trial work including the Antithrombotic trialists’ collaboration, ASCEND, ARRIVE and ASPREE and conclude that aspirin appears to have a modest impact on decreasing ischemic vascular events especially where atherosclerotic cardio vascular disease (ASCVD) risk is higher. This however is tempered by its main side effect of increased gastrointestinal (GI) bleeding which may be as high as 5 per 1,000 per year in the real-world setting. Where ASCVD risk is more than 1% per year the number of ASCVD events that are averted are comparable to the number of GI bleeding events caused. The ADA however recognise that CVD events and GI bleeding events ‘do not have equal effects on long-term health’.

The ADA explain that men and women age 50 years or older with diabetes and one additional CVD risk factor such as family history of ASCVD, high blood pressure, high cholesterol, smoking, chronic kidney disease and who are not at increase bleeding risk e.g. older age, anaemia, renal disease, are most likely to benefit from using low-dose aspirin for the primary prevention of ASCVD. They also suggest that non-invasive imagining techniques could potentially help identify people for aspirin primary prevention therapy.

For more information see:

https://care.diabetesjournals.org/content/44/Supplement_1/S125


Primary prevention of colorectal cancer

The USPSTF recommends low-dose aspirin for the prevention of colorectal cancer in certain groups (see primary prevention of CVD above).

The USPSTF is currently commissioning an update to its guidance on aspirin and primary prevention. More information can be found at:

https://www.uspreventiveservicestaskforce.org/uspstf/draft-update-summary/aspirin-use-to-prevent-cardiovascular-disease-and-colorectal-cancer-preventive-medication

 

Secondary prevention of cardiovascular disease

The American College of Cardiology (ACC) and American Heart Association (AHA) Guidelines on the primary prevention of cardiovascular disease 2019 guidance states;

“Aspirin is well established for secondary prevention of [atherosclerotic cardiovascular disease] ASCVD and is widely recommended for this indication.”

The ACC/AHA in their 2014 Non ST-Elevation acute coronary syndromes guidelines recommend aspirin as soon as possible before percutaneous intervention (PCI) and then “after PCI, aspirin should be continued indefinitely at a dose of 81 mg to 325 mg daily.”

For further information see:

https://www.jacc.org/doi/pdf/10.1016/j.jacc.2014.09.017

The AHA/ASA stoke guidelines (Guidelines for Early Management of Patients With Acute Ischemic Stroke: 2019) state:

“Administration of aspirin is recommended in patients with AIS [acute ischemic stroke] within 24-48 hours after onset. For those treated with IV alteplase, aspirin administration is generally delayed until 24 hours later but might be considered in the presence of concomitant conditions for which such treatment given in the absence of IV altephase is known to provide substantial benefit or withholding such treatment is known to cause substantial risk.”

For further information see:

https://www.ahajournals.org/doi/epub/10.1161/STR.0000000000000211

The American Diabetes Association (ADA) (Cardiovascular disease and risk management: Standards of Medical Care in Diabetes-2020. Diabetes Care 2020; 43(suppl.1): S111-S134) recommends low-dose aspirin (75-162 mg/day) for secondary prevention in people with a history of cardiovascular disease (CVD). For those unable to take aspirin, clopidogrel (75mg/day) can be used. Dual antiplatelet therapy with low-dose aspirin and a P2Y12 inhibitor is recommended for at least a year after acute coronary syndrome therapy (ACS).

For more information see:

https://care.diabetesjournals.org/content/44/Supplement_1/S125

Aspirin and pre-eclampsia

The International Federation of Gynecology and Obstetrics recommend that women identified as high risk of pre-eclampsia during first trimester screening should be given aspirin prophylaxis (150mg at night from 11-14 weeks gestation until delivery or the diagnosis of pre-eclampsia). They do not advocate a policy of low-dose aspirin for all pregnant women.

Poon LC, Shennan A, Hyett JA et al The International federation of gynecology and Obstetrics (FIGO) initiative on pre-eclampsia: a pragmatic guide for first-trimester screening and prevention. Int J Gynecol Obstet 2019; 145 (Suppl.1) 1-33. @

https://obgyn.onlinelibrary.wiley.com/doi/epdf/10.1002/ijgo.12802

The U.S. Preventative services Task Force (USPSTF) recommends (Grade B) low-dose aspirin (81 mg per day) after 12 weeks gestation as a preventative medication in women at high risk of pre-eclampsia6.

USPSTF Low-dose aspirin use for the prevention of morbidity and mortality from preeclampsia: preventative medication. 2014 (currently being updated) available @ https://www.uspreventativeservicestaskforce.org/uspstf/recommendations/low-dose-aspirin-use-for-the-prevention-of-morbidity-and-mortlality-from-preeclampsia-preventative-medication

 

 

 

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Djp

Daniel José Piñeiro

ASSOCIATE
Name
Daniel José Piñeiro
Academic Affiliations:
Full Professor of Medicine, Universidad de Buenos Aires, Argentina Trustee, Board of Trustees, American College of Cardiology
Professional Setting:
My academic experience includes more than 40 years as a practicing medical doctor, teacher, and researcher. I have fulfilled these appointments in settings of vital social engagement and impact, most notably at the Hospital de Clínicas “José de San Martín” of the Universidad de Buenos Aires, a public hospital with high academic recognition. Additionally, I currently hold the position of Full Professor of Medicine at that same University.
Academic Activities:
  • International Meetings Participations: 180
  • Books-Editor: 1
  • Books Chapters: 39
  • Refereed Full Articles: 118 (listed in Pubmed: 29)
  • Refereed Abstracts: 221
  • Editorial Boards: 10
Profesional Associations:
  • 2005 President, Sociedad Argentina de Cardiología.
  • 2011-2013 President, Inter-American Society of Cardiology.
  • 2011-2013 Member (ex-officio), Board of Directors, World Heart Federation
  • 2017-2018 Member (at large), Board of Directors, World Heart Federation
  • 2018-2021 Trustee, Board of Trustees, American College of Cardiology
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Chia

John Chia

Name
John Chia MBBS (Spore), MRCP (UK), FAMS (Spore)
Academic Affiliations:

Adjunct Associate Professor DUKE-NUS Graduate Medical School,
Consultant Oncologist Curie Oncology Singapore,
Visiting Consultant National Cancer Centre Singapore.

Discipline:

Medical Oncology

Scientific Interests:
  • Aspirin as adjuvant therapy in established cancers
  • Adoptive T cell therapy and Dendritic cell vaccines in the treatment of solid tumors
  • Clinical Trial Design and Management
Declaration of Conflicts of Interest:

In the past 3 years, I have received consultant fees from Tessa Therapeutics, Aslan Pharmaceuticals, Novartis, and AstraZeneca.

I received grant support for investigator-initiated research from:

  • National Medical Research Council Singapore
  • Bayer AG

I hold shares in:  Roche, BMS, AstraZeneca, Incyte, Teva Pharmaceuticals, Trillium Therapeutics, Compugen, Arrowhead pharmaceuticals, Emergex, QuantumDx and Halozyme Therapeutics

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Badimon

Lina Badimon

Name
Lina Badimon BSc, PharmD, PhD, FESC, FAHA
Academic Affiliations:
Director of the Cardiovascular Science Program (ICCC) at the Hospital Santa Creu and San Pau, IIB-Sant Pau; CIBER CV. Director of the Cardiovascular Research Chair of the Autonomous University of Barcelona and Director of the UNESCO Chair in Biomedical Sciences Training and Research.
Discipline:
Pharmacology, Cardiovascular Disease
Scientific Interests:
Cardio-metabolic diseases, thrombosis, atherosclerosis and ischemic heart disease
Declaration of Conflicts of Interest:

I received consultant and speakers fees from Amgen, AstraZeneca, Bayer, Lilly and Sanofi.

    Return to Scientific Advisory Board
    Ge

    Junbo Ge

    Name

    Junbo Ge

    Ge Junbo, male, was born in Wulian, Shandong province on Nov. 8, 1962. He is the member of Chinese Academy of Sciences, professor and doctoral supervisor. He received his doctor’s degree of Medicine from German Mayence University in 1993 and now works as the director for Shanghai Institute of Cardiovascular Disease and the Center for Stem Cells and Tissue Engineering, Fudan University. He is also the designate chairman of the Cardiovascular Disease Branch of Chinese Medical Association, council member of the Cardiovascular Angiography and Interventions Association, international consultant of the American Heart Association. In Dec. 2013, he was appointed as the vice president of Tongji University.

    Prof. Ge has been engaged in clinical and scientific research work of cardiovascular disease since 1987, and his research area covers the pathogenesis of coronary heart disease, early diagnosis and treatment plan optimization.

    Return to Scientific Advisory Board
    Langley

    Ruth Langley

    Name
    Ruth Langley PhD, FRCP
    Academic Affiliations:
    Professor of Oncology and Clinical Trials, MRC Programme Leader and Chair of the Cancer Group, MRC Clinical Trials Unit at UCL, honorary consultant in medical oncology at the Brighton and Sussex University Hospital.
    Discipline:
    Medical oncologist; trialist
    Scientific Interests:
    • Aspirin
    • Gastro-oesophageal malignancy
    • Transdermal oestrogen in the treatment of prostate cancer
    • Trials methodology
    Declaration of Conflicts of Interest:
    Has received honorarium from Bayer
    Return to Scientific Advisory Board
    Chan

    Andrew T Chan

    Name
    Andrew T. Chan MD, MPH
    Academic Affiliations:
    Chief, Clinical and Translational Epidemiology Unit, Vice Chair, Division of Gastroenterology, Massachusetts General Hospital, Boston, Co-leader, Cancer Epidemiology Program, Dana-Farber/Harvard Cancer Center, Boston.
    Discipline:
    Gastroenterology
    Scientific Interests:
    • The role of aspirin in the prevention of colorectal cancer and other cancers
    • The role of the gut microbiome in colorectal cancer and other chronic gastrointestinal diseases, including inflammatory bowel disease and diverticulitis
    • The role of diet and lifestyle in colorectal cancer and other chronic gastrointestinal cancers
    Declaration of Conflicts of Interest:

    AACR Honors Dr. Andrew T. Chan With 2019 AACR-Waun Ki Hong Award

    Click here to find the press release.

    I received consultant Bayer and Pfizer, Inc.

    I received grant support for investigator-initiated research from:

    • National Institutes of Health
    • National Cancer Institute
    • Crohn’s and Colitis Foundation
    • Bayer AG
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    Gaziano

    Mike Gaziano

    Name
    J Michael Gaziano MD, MPH
    Academic Affiliations:

    Professor of Medicine, Harvard Medical School; Chief Division of Aging, Brigham and Women’s Hospital; Director of Preventive Cardiology and Director of Massachusetts Veterans Epidemiology Research and Information Center (MAVERIC), VA Boston Healthcare System.
    Discipline: Cardiology and Epidemiology

    Scientific Interests:
    I am a chronic disease epidemiologist with a particular interest in the roles that individual lifestyle choices (diet, exercise, smoking), metabolic factors (obesity, high cholesterol, and hypertension), and biochemical and genetic markers play on the risk of cardiovascular disease and other chronic illnesses. Also, of interest is the impact that vascular disease has on other organ systems, including cognitive dysfunction and renal disease. I have an interest in the design of large-scale trials and observational studies nested in large health care systems using big data analytic techniques.
    Declaration of Conflicts of Interest:

    I received consultant and speaker fees Bayer.

    I received grant support as a principal investigator or co-investigator for research from the VA, DOD, NIH, Merck and Kowa.

    Return to Scientific Advisory Board
    Pierre A Web Photo

    Pierre Amarenco

    Name

    Pierre Amarenco, MD, FAHA, FAAN

    Academic Affiliations:
    • Professor of Neurology at Paris-Diderot Sorbonne University 
    • Chairman of the Department of Neurology and Stroke Center; Bichat University Hospital
    • Co-Director INSERM Unit-698 “Clinical Research in Atherothrombosis”
    Discipline:

    Neurology and Vascular Neurology

    Scientific Interests:
    • Understanding and preventing stroke and vascular diseases
    • Clinical trials in prevention of vascular diseases
    • Carotid intima-media thickness studies
    • Lipid trials: prevention and therapeutic –protective- evaluation
    Declaration of Conflicts of Interest:

    N/A

    Return to Scientific Advisory Board
    CarloPatrono

    Carlo Patrono

    CHAIR
    Name
    Carlo Patrono MD, FESC, FRCP
    Academic Affiliations:
    Adjunct Professor of Pharmacology at the Catholic University School of Medicine in Rome (Italy) and at the Perelman School of Medicine of the University of Pennsylvania in Philadelphia (USA).
    Discipline:
    Clinical Pharmacology
    Scientific Interests:
    • Studying platelet activation and inhibition in diabetes mellitus
    • Studying platelet activation and inhibition in myeloproliferative neoplasms
    • Investigating the mechanism of action of low-dose aspirin in preventing colorectal cancer
    Declaration of Conflicts of Interest:

    I received consultant and speakers fees from Acticor Biotech,  Amgen,  Bayer, GlaxoSmithKline,  Tremeau,  Zambon.

    I received grant support for investigator-initiated research from:

    • AIFA (Italian Drug Agency)
    • Bayer AG
    • Cancer Research UK
    • European Commission, FP6 and FP7 Programmes

      Return to Scientific Advisory Board

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