Blood Clot News and Research

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A Blood Clot is a mass of blood that forms when blood platelets, proteins, and cells stick together. When a blood clot is attached to the wall of a blood vessel, it is called a thrombus. When it moves through the bloodstream and blocks the flow of blood in another part of the body, it is called an embolus.

Recreational drugs significantly increase the risk of stroke

The recreational drugs cannabis, cocaine and amphetamines significantly increase the risk of stroke – including among younger users – Cambridge researchers have concluded after analyzing data from more than 100 million people.

9 Mar 2026

Taking anticoagulants alongside prostate cancer drugs does not increase bleeding risk

In a study of adults with advanced prostate cancer taking androgen-receptor pathway inhibitors and different types of anticoagulants, investigators found no evidence of an increase in patients' bleeding or clotting risks, despite previous lab results that raised alarms.

9 Mar 2026

New study examines blood clot risks for female astronauts in microgravity

Just a few days in simulated microgravity can subtly change the way women's blood clots, sparking bigger questions about health monitoring protocols for astronauts who can spend six months or more in orbit, say Simon Fraser University researchers.

4 Mar 2026

Electrohydrodynamic bioprinting creates living muscle tissues with tightly aligned cells inside

Building functional human muscle in the laboratory has long been a goal of regenerative medicine, but one stubborn obstacle remains: real muscle is not just a mass of cells.

2 Mar 2026

Rising vitamin K shot refusal increases newborn brain injury risk

Increasing numbers of parents are refusing vitamin K shots for their newborns, putting infants at greater risk of avoidable brain injuries, according to a preliminary systematic review released February 26, 2026, that will be presented at the American Academy of Neurology's 78th Annual Meeting taking place April 18-22, 2026, in Chicago and online.

26 Feb 2026

New guidelines outline comprehensive care for acute pulmonary embolism

Early detection and prompt treatment of acute pulmonary embolism (PE), a sudden and potentially life-threatening blood clot that blocks arteries in the lungs, is critical.

19 Feb 2026

4D-printed vascular stents expand naturally at body temperature

Cardiovascular diseases constitute a major global health concern. Various complications that affect normal blood flow in arteries and veins, such as stroke, blood clot formation in veins, blood vessel rupture, and coronary artery disease, often require vascular treatments.

6 Feb 2026

Investigational anti-clotting drug reduces risk of second ischemic stroke without bleeding concerns

An investigational anti-clotting medication, asundexian, demonstrated a reduction in the risk of a second ischemic (clot-caused) stroke without raising bleeding concerns, according to a preliminary late-breaking science presentation at the American Stroke Association's International Stroke Conference 2026.

6 Feb 2026

Post-thrombectomy alteplase linked to better stroke outcomes

Giving the clot-busting medication alteplase at the site of a blocked brain artery after blood clot removal may increase the number of patients who fully recover, according to preliminary late-breaking science presented at the American Stroke Association's International Stroke Conference 2026.

4 Feb 2026

Antiplatelet medications linked to worse outcomes in people hospitalized with a brain bleed

Analysis of hospital registry data found that people who were hospitalized due to bleeding in the brain and who had taken multiple antiplatelet medications, or medications stronger than aspirin, were more likely to die before leaving the hospital compared to those not taking any antiplatelet medication, according to a preliminary study to be presented at the American Stroke Association's International Stroke Conference 2026.

29 Jan 2026

New 2026 guideline expands access to advanced acute ischemic stroke care

Expanded eligibility for advanced stroke therapies and new recommendations for diagnosing and treating stroke in children and adults are among the major updates in the new 2026 Guideline for the Early Management of Patients With Acute Ischemic Stroke from the American Stroke Association, a division of the American Heart Association, published today in the Association's flagship journal Stroke.

26 Jan 2026

Short-term oatmeal diet improves cholesterol and metabolic health markers

A short-term oat-based diet appears to be surprisingly effective at reducing the cholesterol level. This is indicated by a trial by the University of Bonn, which has now been published in the journal Nature Communications.

23 Jan 2026

Doctors warn about cardiovascular dangers from excessive energy drink use

Downing several strong energy drinks every day may pose a serious stroke risk, doctors have warned in the journal BMJ Case Reports, after treating an otherwise fit and healthy man in his 50s with a daily 8-can habit and exceedingly high blood pressure.

9 Dec 2025

TXA reduces the need for blood transfusion in patients undergoing high-risk non-cardiac surgery

When hospitals were randomly assigned to treat patients undergoing higher-risk non-cardiac surgery with tranexamic acid (TXA) or a placebo, patients who received TXA needed significantly fewer blood transfusions and saw no increase in potentially life-threatening blood clots (thrombosis) after 90 days of follow-up, according to research presented at the 67th American Society of Hematology (ASH) Annual Meeting and Exposition.

9 Dec 2025

New research questions reliability of macaque models for TIGIT-targeted cancer treatments

A new study published in the Journal of Biological Chemistry from UC Davis Comprehensive Cancer Center finds that TIGIT, an immune checkpoint receptor targeted by cancer immunotherapy drugs, triggers a different response in rhesus macaques compared to humans.

24 Nov 2025

Magnetic microrobots guide drugs directly to blood clots

Every year, 12 million people worldwide suffer a stroke; many die or are permanently impaired. Currently, drugs are administered to dissolve the thrombus that blocks the blood vessel.

14 Nov 2025

Cardiologists recommend reassessing need for additional stents later

A blocked coronary artery causing an acute heart attack must be opened immediately with a stent procedure. However, if other coronary arteries also appear to be narrowed, it is safe to wait and treat those later. This approach cuts the number of stent procedures in half, according to cardiologists from Radboud university medical center, writing in The New England Journal of Medicine.

14 Nov 2025