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ADHerence of ticagrelOr in Real World Patients With aCute Coronary Syndrome

Incidence and Models of Ticagrelor Discontinuation in Patients With Acute Coronary Syndrome

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT03129867
Acronym
AD-HOC
Enrollment
480
Registered
2017-04-26
Start date
2017-01-01
Completion date
2020-12-31
Last updated
2023-01-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Acute Coronary Syndrome

Brief summary

Ticagrelor 90 mg twice daily treatment is recommended for 12 months in patients with acute coronary syndrome (ACS) and in patients undergoing coronary revascularization and conservative strategies. Recent data from the PEGASUS-TIMI 541 trial have shown that long-term treatment with ticagrelor reduced the risk of major cardiovascular adverse events (MACE) in stable ambulatory patients with a history of myocardial infarction. Based on these data, prolongation over 12 months of ticagrelor therapy could be indicated in selected patients; even if with such a prolongation some adverse effects on the treatment could be observed. In the PLATO2 trial, where median duration of exposure to the study drug was 277 days, the suspension of ticagrelor therapy was 7.4% in ticagrelor versus 6% in patients receiving clopidogrel ( P \<0.001). Ticagrelor treatment interruption was mainly driven by non-serious adverse events occurring mainly shortly after randomization. For patients after the first year of treatment, the subsequent rate of interruption was low. These data demonstrate that adverse events considered not serious by traditional trial criteria may have an effect on quality of life and, therefore, can cause treatment interruption; The phenomenon emphasizes at the same time the importance of patient education and advice on timing and the nature of adverse effects in order to improve adherence. Patients in the real world may show a premature suspension rate of the drug even higher than in clinical trials. However, data from real-world patients is scarce.

Detailed description

Ticagrelor 90 mg twice daily treatment is recommended for 12 months in patients with acute coronary syndrome (ACS) and in patients undergoing coronary revascularization and conservative strategies. Prolongation over 12 months of ticagrelor therapy could be indicated in selected patients; even if with such a prolongation some adverse effects on the treatment could be observed. In the PLATO2 trial, where median duration of exposure to the study drug was 277 days, the suspension of ticagrelor therapy was 7.4% in ticagrelor versus 6% in patients receiving clopidogrel ( P \<0.001). Ticagrelor treatment interruption was mainly driven by non-serious adverse events occurring mainly shortly after randomization. For patients after the first year of treatment, the subsequent rate of interruption was low. These data demonstrate that adverse events considered not serious by traditional trial criteria may have an effect on quality of life and, therefore, can cause treatment interruption; The phenomenon emphasizes at the same time the importance of patient education and advice on timing and the nature of adverse effects in order to improve adherence. Patients in the real world may show a premature suspension rate of the drug even higher than in clinical trials. However, data from real-world patients is scarce.

Interventions

DRUGTicagrelor

Ticagrelor 60mg or 90 mg as routine use of each Center

Sponsors

FROM- Fondazione per la Ricerca Ospedale di Bergamo- ETS
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Adult (\>=18 years age) patients * Patients discharged from the hospital with a diagnosis of ACS * Patients discharged on ticagrelor therapy * Patients who have signed an informed consent to study participation

Exclusion criteria

* Patients taking part in a study with a medical device or experimental drug

Design outcomes

Primary

MeasureTime frameDescription
Incidence of drug discontinuationAt 12 monthsTicagrelor discontinuation procedures include discontinuation, interruption and disruption. Discontinuation is defined as the definitive suspension recommended by physician for patients who are believed to no longer need ticagrelor. Interruption is defined as the temporary cessation of antiplatelet therapy for surgical needs with ticagrelor resumption after surgery. Disruption of therapy includes cessation of antiplatelet treatment due to bleeding or non-compliance

Secondary

MeasureTime frameDescription
Incidence of major adverse cardiac events (MACE)At 12 monthsIncidence of major adverse cardiac events (MACE)
Incidence of major bleedingAt 12 monthsIncidence of major bleeding
Incidence of drug discontinuationAt 24 monthsIncidence of drug discontinuation

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026