Prof. Ami Schattner: “Initial results are promising to say the least.”
An ancient Greek drug derived from the saffron plant could improve the treatment of people with severe COVID-19 and reduce the COVID mortality rate by as much as 50%, according to a report published earlier this month in the European Journal of Internal Medicine by an Israeli researcher from the Hebrew University of Jerusalem and Hadassah Medical School.
The drug, colchicine, dates back thousands of years to ancient Egypt, where it was known for its special healing properties. It is one of a few medicines that survived until modern times. Most recently, it has been used to treat and prevent inflammation caused by gout that can lead to painful arthritis and Familial Mediterranean Fever (FMF), which is common among Jewish people of North African descent.
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Prof. Ami Schattner researched and analyzed all patients treated in controlled trials of this ancient drug for the past 20 years. He found that among its uses and potential uses, colchicine also appears effective in treating COVID-19.
So far, four controlled studies of around 6,000 coronavirus patients have been published on the effect of colchicine, Schattner said, each showing a “significant improvement in severe coronavirus indices and, most importantly, there was a decrease in mortality by about 50% compared to those who were not treated with colchicine.”
The drug is cheap, a small half-milligram dose is needed per day, and it has already been proven safe to use, he said, making colchicine “an important discovery that could significantly contribute to improving the morbidity and mortality of many patients, if confirmed in further studies.”
The drug is also well-tolerated, the doctor said. The only side-effects in some patients can be bouts of diarrhea; about 10% of patients discontinue the use of the drug for this reason.
The drug has been tested in the treatment of the COVID-19 pandemic around the world, including in Canada, Greece, South Africa, Spain and Brazil. Many of the tests were double-blind placebo studies, increasing their likelihood of accuracy.
“The results were impressive,” he said.
Some 50 years ago, using the drug to treat FMF was verified by researchers at Sheba Medical Center at Tel Hashomer and Hadassah, not only against the sharp attacks associated with the disease and their prevention, but also in protection against a serious complication of FMF – amyloidosis, which affects the kidneys.
More recently, several studies have started to prove its effectiveness in the treatment of acute pericarditis (swelling around the heart, and in the prevention of post-cardiac injury syndrome and atrial fibrillation following cardiac surgery.
“As is well known, patients who have had a heart attack are at a significantly increased risk of recurrence and stroke, and these are very many patients,” Schattner said. “Studies from recent years have found that thanks to its anti-inflammatory activity on the atherosclerotic layers in the arteries, colchicine in small daily doses is able to effectively protect these patients.
“The level of protection was to the point of preventing about half of the recurrent events, and this impressive beneficial effect was also achieved in patients who had already undergone therapeutic catheterization and had taken optimal preventive treatment by aspirin and statins,” he added. “This is important news for a very large number of patients.”
When can the drug start being used to help COVID patients?
Further randomized controlled trials are needed to confirm these preliminary results, according to Schattner, which he believes will likely lead to expanding indications for low-dose colchicine. But he said there is no reason that the drug could not start being used right now.
“Even though initial data on the effect of colchicine on coronavirus patients is very promising, more patients need to be in randomized controlled trials,” Schattner said. “But that would not prevent me from using the drug already in patients with high risk, to hopefully lower their chances of developing severe disease.