The most frequent and killer disease of dairy cows is bovine mastitis, an infection around the udder.
It’s costing the industry between $20 billion and $30 billion a year — but it’s also contributing to an increasing number of deaths among humans, resulting from a proliferation of antibiotic-resistant superbugs.
The scourge of the superbugs comes from the fact that antibiotics are the main therapy used to treat bovine mastitis. The overuse of antibiotics in cows allows antimicrobial-resistant pathogens to make their way to people, via the milk they drink.
Resistant superbugs cause an estimated 700,000 deaths a year around the world, with the total predicted to rise to 10 million by 2050. Costs associated with death and loss in productivity could run $100 trillion globally, according to a UK government report.
Israeli biopharmaceutical startup Mileutis has developed its first product, Imilac, an injectable product that stimulates the cow’s immune system to fight mastitis. It’s similar to immunotherapy medications that are transforming cancer treatment in humans.
“Mileutis” is a portmanteau of “mil” for milk, “eut” from therapeutics, and “is,” Greek for knowledge.
Safe for humans
Because Imilac is based on peptides that already exist in cow’s milk, the formulation is considered safe for human consumption.
The European Medicines Agency ruled that Imilac, which contains the protein casein hydrolysate, doesn’t require a “Maximum Residue Limit” evaluation to determine if there is a dangerously high concentration of a pharmacologically active substance from a food of animal origin.
Imilac was developed originally at the governmental Volcani Center Agricultural Research Organization in Rishon LeZion.
Mileutis CEO David Javier Iscovich says he and his father were looking for an innovative biological technology they could build into a company. The two, originally from Argentina, weren’t thinking about cows at first.
The senior Iscovich – José – is an experienced immunobiologist who focused on the epidemiology of cancer in human health for most of his career. David worked in his father’s lab as a research assistant from a young age.
“We reviewed 14 projects in Israel and the U.S. until someone offered us a project on animal health,” David Iscovich recalls. “We saw the results, and we said: ‘Wow, this is the one. This is going to change the industry.’”
‘There’s no solution’
It’s a big industry: an estimated 275 million dairy cows worldwide. A survey by the U.S. Food and Drug Administration found that 95% of dairy cows are treated with antibiotics at least once a year.
The problem of antibiotic overuse is a direct result of the growth of industrial farming, Iscovich points out. Fifty years ago, when a cow got infected with mastitis, she would be given time to rest, while her immune system did its work.
But now, each cow is pumped for so much milk, there’s no time for the cow to heal. Antibiotics were introduced to kill the pathogen so it does not infect the milk. Today, some 70% of the antibiotics administered in the world are for animals.
The problem arises when pathogens learn to resist antibiotics in animals and then travel to humans. Antibiotic overrun from farms can seep into the surrounding ecosystem, which can also reach humans.
“We go to the hospital, the antibiotics don’t work, and we die,” Iscovich says bleakly. “There’s no solution.”
Overuse of antibiotics in animals has led some European countries to begin restricting their use.
Will Imalic replace antibiotics entirely? “I don’t think it will be 100%,” Iscovich says. “But for mastitis, we will be able to reduce antibiotic use by 90% to 95%.”
Second product in development
Imilac is intended to be used once a year as a preventative. A second Mileutis product in development, Milac, attacks the pathogen itself and is used if a cow gets infected during the lactation period.
Imilac has passed several clinical trials in Israel. It has received support from the Hachaklait Veterinary Services group, which has supplied it to dairy farmers.
Mileutis submitted its application for full approval to the Israeli Ministry of Agriculture in 2019 and is awaiting authorization. It is in advanced stages with regulators in the U.S. and the European Union.
The company has built a production line in Israel. “We’re ready to go,” Iscovich says.
In October, Mileutis raised $20 million from NovaQuest Capital Management to bring its products to markets beyond Israel. This is NovaQuest’s first investment in the animal healthcare field and its first in an Israeli company. Mileutis previously raised money from private investors.
Mileutis, with a staff of 30, has its office and factory close to the Weizmann Institute of Science in Rehovot. It has been working on a residue-free, biologically based antibiotic alternative since 2004.
At the time, there were few competitors. Now, there’s “a buzz on antibiotic solutions but [other companies] are at a very early stage” compared with Mileutis, Iscovich explains. “It will take them many years to get to where we are today.”
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(Edited by Fern Siegel and David Martosko)
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