Study Stopped
Planned recruitment total was not achievable within the funded timeframe
Aspirin to Target Arterial Events in Chronic Kidney Disease
ATTACK
1 other identifier
interventional
4,633
1 country
1
Brief Summary
This study aims to find out whether people with chronic kidney disease \[CKD\] should take low dose aspirin to reduce the risk of first heart attack or stroke (cardiovascular disease \[CVD\]). CKD is common and is associated with an increased risk of CVD. CVD is caused by small blood clots and aspirin thins the blood to reduce the risk of such clots developing but it also increases the risk of bleeding. Aspirin is recommended to prevent further CVD in people who have already had a first CVD event (so called secondary prevention). Here the investigators want to study the use of aspirin as primary prevention in people with CKD who have not had a CVD to prevent the first event, to assess whether the potential benefits exceed the risks. Eligible patients will be recruited from their United Kingdom (UK) general practices and allocated by chance to be prescribed once daily low dose aspirin or usual care only. Follow-up will be for several years both electronically (for general practice, hospital and mortality data) and by annual questionnaires to ascertain CVD and bleeding events.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_3
Started Feb 2019
Longer than P75 for phase_3
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
December 20, 2018
CompletedFirst Posted
Study publicly available on registry
January 8, 2019
CompletedStudy Start
First participant enrolled
February 25, 2019
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 30, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
September 23, 2025
CompletedMarch 20, 2026
March 1, 2026
5.6 years
December 20, 2018
March 17, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
Number of participants with a Major vascular event: Composite outcome of non-fatal myocardial infarction, non-fatal stroke and cardiovascular death (excluding confirmed intracranial haemorrhage and other fatal cardiovascular haemorrhage)
Acute MI defined according to the Third Universal Definition of myocardial infarction (MI). Acute stroke defined in accordance with the World Health Organization (WHO) definition as "rapidly developing clinical signs of focal (or global) disturbance of cerebral function, with symptoms lasting 24 hours or longer, with no apparent cause other than of vascular origin". This excludes cases of primary cerebral tumour, cerebral metastasis, subdural haematoma, post-seizure palsy, brain trauma and TIA. Haemorrhagic stroke (fatal and non-fatal) including intracerebral haemorrhage and SAH which has been confirmed on appropriate imaging is excluded from the primary composite endpoint and included within the secondary endpoints.
Over average 4 years follow-up
Secondary Outcomes (11)
Number of participants dying from any cause
Average 4 years follow-up
Number of participants with major vascular events plus revascularisation
Average 4 years follow-up
Number of participants with Non-fatal myocardial infarction
Average 4 years follow-up
Health-related quality of life, mean utility score
Average 4 years follow-up
Number of participants with intra-cranial haemorrhage, fatal and non fatal major extra cranial haemorrhage
Average 4 years follow-up
- +6 more secondary outcomes
Other Outcomes (8)
Number of participants with transient ischaemic attack
Average 4 years follow-up
Number of Unplanned hospitalisations per participant
Average 4 years follow-up
Number of participants with new diagnosis of cancer
Average 4 years follow-up
- +5 more other outcomes
Study Arms (2)
Aspirin
EXPERIMENTAL75mg of non enteric coated or dispersible aspirin once daily added to usual medications
Usual care
NO INTERVENTIONUsual medications only
Interventions
Eligibility Criteria
You may qualify if:
- Males and females aged 18 years and over at the date of screening
- Subjects with CKD (reduced eGFR and/or albuminuria) defined as: • estimated glomerular filtration rate \[eGFR\] \<60mL/min/1.73m2 for at least 90 days, and/or • kidney disease code on the GP electronic patient AND most recent eGFR in CKD-defining range (\<60mL/min/1.73m2), and/or • albuminuria or proteinuria (defined as urine albumin:creatinine ratio \[ACR\] ≥3mg/mmol, and/or urine protein:creatinine ratio \[PCR\] ≥15mg/mmol, and/or +protein or greater on reagent strip)
- Subjects who are willing to give permission for their paper and electronic medical records to be accessed by trial investigators
- Subjects who are willing to be contacted and interviewed by trial investigators
- Subjects who can communicate well with the investigator or designee, understand the requirements of the study and understand and sign the written informed consent
You may not qualify if:
- Subjects with CKD GFR category 5
- Subjects with pre-existing cardiovascular disease (angina, myocardial infarction, stroke, transient ischaemic attack (TIA), significant peripheral vascular disease, coronary or peripheral revascularisation for atherosclerotic disease)
- Subjects with a current pre-existing condition associated with increased risk of bleeding other than CKD
- Subjects currently prescribed anticoagulants or antiplatelet agent, or taking over the counter (OTC) aspirin continuously
- Subjects who are currently and regularly taking other drugs with a potentially serious interaction with aspirin
- Subjects with a known allergy to aspirin or definite previous clinically important adverse reaction
- Subjects with poorly controlled hypertension (systolic blood pressure \[BP\] ≥180 mmHg and/or diastolic BP ≥105 mmHg)
- Subjects with other conditions which in the opinion of their General Practitioner (GP) would preclude prescription of aspirin in routine clinical practice, for example significant anaemia or thrombocytopenia
- Subjects who are pregnant or likely to become pregnant during the study period
- Subjects with malignancy that is life-threatening or likely to limit prognosis, other life-threatening co-morbidity, or terminal illness
- Subjects whose behaviour or lifestyle would render them less likely to comply with study medication
- Subjects in prison
- Subjects currently participating in another clinical trial of an investigational medicinal product or who have taken part in such a trial in the last three months (Covid-19 vaccine studies are acceptable)
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University of Warwickcollaborator
- Nottingham University Hospitals NHS Trustcollaborator
- East Kent Hospitals University NHS Foundation Trustcollaborator
- University of Durhamcollaborator
- Epsom and St Helier University Hospitals NHS Trustcollaborator
- University of Southamptonlead
- University of Nottinghamcollaborator
Study Sites (1)
Nottingham Clinical Trials Unit
Nottingham, NG7 2RD, United Kingdom
Related Publications (2)
Gallagher H, Dumbleton J, Maishman T, Whitehead A, Moore MV, Fuat A, Fitzmaurice D, Henderson RA, Lord J, Griffith KE, Stevens P, Taal MW, Stevenson D, Fraser SD, Lown M, Hawkey CJ, Roderick PJ. Aspirin to target arterial events in chronic kidney disease (ATTACK): study protocol for a multicentre, prospective, randomised, open-label, blinded endpoint, parallel group trial of low-dose aspirin vs. standard care for the primary prevention of cardiovascular disease in people with chronic kidney disease. Trials. 2022 Apr 21;23(1):331. doi: 10.1186/s13063-022-06132-z.
PMID: 35449015DERIVEDNatale P, Palmer SC, Saglimbene VM, Ruospo M, Razavian M, Craig JC, Jardine MJ, Webster AC, Strippoli GF. Antiplatelet agents for chronic kidney disease. Cochrane Database Syst Rev. 2022 Feb 28;2(2):CD008834. doi: 10.1002/14651858.CD008834.pub4.
PMID: 35224730DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Hugh Gallagher, MD
Epsom and St Helier University Hospitals NHS Trust
- PRINCIPAL INVESTIGATOR
Simon Fraser, MD
University of Southampton
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Masking Details
- Adjudication of outcomes blinded
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
December 20, 2018
First Posted
January 8, 2019
Study Start
February 25, 2019
Primary Completion
September 30, 2024
Study Completion
September 23, 2025
Last Updated
March 20, 2026
Record last verified: 2026-03