Hydroxychloroquine for the Prevention of Cardiovascular Events in Myocardial Infarction Patients - a Safety Pilot Trial

    Not Recruiting
  • participants needed
  • sponsor
    Helsinki University Central Hospital
Updated on 24 January 2021
coronary artery disease
myocardial infarction
angina pectoris
creatine kinase mb
coronary disease


This safety pilot study evaluates the effect of hydroxychloroquine on preventing recurrent cardiovascular events among myocardial infarction patients. Half of the participants will receive hydroxychloroquine, whereas the other half will receive placebo during six months.


Anti-rheumatic medications decrease cardiovascular mortality in rheumatoid arthritis patients, based mainly on their anti-inflammatory effect. No studies have addressed their effect on preventing recurrent cardiovascular events among non-rheumatic patients.

In the pilot phase 200 myocardial infarction patients will be recruited during their index visit to the study hospitals. Patients will be randomized after initial coronary angiography to receive either hydroxychloroquine 300 mg a day or placebo during six months. Patients will be followed up until 12 months at four visits. Visit one is at doctors office at 3 to 5 weeks from the day of recruitment. Visit two is at study nurses office at 5.5 to 6 months. Visit three is a phone interview by the study nurse at 8.5 to 9.5 months. Visit four at 11.5 to 12.5 months is at doctors office.

This study evaluates the safety of hydroxychloroquine in the setting of myocardial infarction, and whether hydroxychloroquine treatment could reduce the incidence of recurrent cardiovascular events among myocardial infarction patients. Furthermore, the effect of hydroxychloroquine on cardiovascular risk factors and systemic inflammation parameters will be studied. In a subgroup of 40 patients, the effect of hydroxychloroquine on aortic inflammation will be assessed by PET/CT scan.

If this safety pilot study with 200 patients proves successful (i.e. no major complications), 2500 patients will be recruited in additional centers in Finland and the Nordic Countries.

Orion Pharma provides the active hydroxychloroquine tablet (Oxiklorin) but provides no other assistance or funding for the study.

Condition Hydroxychloroquine, Myocardial Infarction, Antirheumatic Agents, Inflammation, Acute Coronary Syndrome, Cardiovascular Disease
Treatment Placebo, hydroxychloroquine
Clinical Study IdentifierNCT02648464
SponsorHelsinki University Central Hospital
Last Modified on24 January 2021

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