Condition

Aspirin clinical trials and research

• 9Clinical trials
• 11Countries

Newest Aspirin clinical trials

All recruiting trials (9)

• See if stopping long-term aspirin is as good as continuing it in older adults with stable ischemic heart disease

  In adults 65 and older with stable ischemic heart disease, this trial tests whether stopping daily low-dose aspirin is not worse than continuing it.

  Recruiting at 2 sites Phase 4 Odense University Hospital · Copenhagen and 1 other locations · NCT07795398

• No blood-thinners versus aspirin after left atrial appendage closure

  This trial tests whether skipping antithrombotic drugs after left atrial appendage closure (using only 45 days of oral anticoagulant) is as safe and effective as taking aspirin for people with nonvalvular atrial fibrillation who are at high bleeding risk.

  Recruiting at 20 sites Phase 4 OCEAN-SHD Study Group · Nagoya, Aichi-ken and 20 other locations · NCT07125417

• Effects of low dose aspirin on immunity during pregnancy

  This study is testing how low dose aspirin affects the immune system in pregnant women who are at high risk for preeclampsia to see if it helps improve their health and the health of their babies.

  Recruiting Unidade Local de Saúde de Coimbra, EPE · Coimbra, Coimbra District · NCT06882850

• Single versus dual antiplatelet therapy after drug-coated balloon angioplasty in elderly or high-bleeding-risk patients

  This study tests whether taking one antiplatelet medicine is as safe and causes less bleeding than taking two medicines for people aged 75 or older, or adults at high bleeding risk, after drug-coated balloon angioplasty for coronary artery disease.

  Recruiting Fondazione Ricerca e Innovazione Cardiovascolare ETS · Milan, MI · NCT06535568

• Postpartum aspirin to prevent blood clots after delivery

  A 3rd-phase trial tests whether taking a small daily dose of aspirin for 6 weeks after giving birth works as well as usual preventive injections of LMWH to reduce blood clots in people with pregnancy-related clotting risk.

  Recruiting Phase 3 University of Calgary · Brussels and 11 other locations · NCT06494878

• Comparing aspirin use versus no antithrombotic therapy after heart valve replacement

  This study tests whether taking aspirin after heart valve replacement helps patients feel better compared to not taking any blood-thinning medicine.

  Recruiting Phase 4 OCEAN-SHD Study Group · Shinjuku, Tokyo · NCT06007222

• Assessing the effects of enteric-coated aspirin in patients with type 2 diabetes

  This study is testing different doses of enteric-coated aspirin to see which one works best for people with type 2 diabetes who don’t respond well to a standard dose.

  Recruiting Phase 1 Montreal Heart Institute · Montreal, Quebec · NCT05702463

• Using aspirin to prevent complications in pregnant women with chronic hypertension

  This study is testing whether taking low-dose aspirin during pregnancy can help prevent serious complications for women with chronic high blood pressure and their babies.

  Recruiting at 14 sites Phase 3 Centre Hospitalier Intercommunal Creteil · Bordeaux and 19 other locations · NCT04356326

• Using low-dose aspirin to prevent gastric cancer in early gastric cancer patients

  This study is testing if low-dose aspirin can help prevent gastric cancer in patients who have had early gastric cancer removed and are free of H. pylori infection.

  Recruiting at 9 sites Phase 3 National Cancer Center, Korea · Busan and 9 other locations · NCT04214990

Related topics

Quick answers

How many Aspirin clinical trials are recruiting right now?

9, as of November 12, 2026. We update this list each time we refresh our data from ClinicalTrials.gov.

Where are these trials running?

In 11 countries. The most sites are in France (2 trials), Denmark (2 trials), Canada (2 trials), Japan (2 trials), Belgium (1 trial). Each study page lists its sites and which ones are recruiting.

What phases are they in?

Phase 3: 3, Phase 4: 3, Phase 1: 1. Trials with no phase listed are usually device, behavioural or observational studies.

How do I join one?

Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.

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